CN208477069U - High-power IGCT device test fixture slide unit positioning mechanism - Google Patents
High-power IGCT device test fixture slide unit positioning mechanism Download PDFInfo
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- CN208477069U CN208477069U CN201821081911.1U CN201821081911U CN208477069U CN 208477069 U CN208477069 U CN 208477069U CN 201821081911 U CN201821081911 U CN 201821081911U CN 208477069 U CN208477069 U CN 208477069U
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- calandria
- plate
- slide unit
- test fixture
- spring
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model relates to a kind of high-power IGCT device test fixture slide unit positioning mechanisms, including press machine and upper and lower heating body portion and test fixture slide unit positioning mechanism, press machine and upper and lower heating body portion are made of oil hydraulic cylinder, bottom plate, guide sleeve, sliding panel, guide post, lower calandria, upper calandria, upper mounted plate；Test fixture slide unit positioning mechanism is made of centralized positioning column, element cushion block, slip blade, supporting plate crossbeam, three section sliding rails, sliding rail fixed plate, centering locating piece, spring positioning pearl, spring bearer plate, support spring, upper and lower guide rod and knob；High-power IGCT device can be easily placed on test fixture by the utility model, and automatic accurate can realize concentric locating with press cylinders shape calandria.The utility model has application in IGCT dynamic characteristic test platform at present, and actual effect is good.
Description
Technical field
The utility model relates to one kind to be used for high-power IGCT device test fixture slide unit positioning mechanism, can easily will be big
Power IGCT device is placed on test fixture, and automatic accurate can realize concentric locating with press cylinders shape calandria.
Background technique
Power semiconductor development at present is very rapid, has especially been engineered high-power its current capacity of IGCT device
Reach 5kA, voltage reaches 6.5kV level, the positive 6 inches of development of element chip diameter.IGCT is that a kind of integral gate change is brilliant
Brake tube, core devices are turn-off thyristor GCT, it is integrated with gate drive circuit pcb board and forms IGCT.
Since IGCT chip partial volume and weight are all larger, while gate-drive pcb board area is also larger, carries out in this way to IGCT
When performance test, since test fixture calandria is often deep into fixture interior of equipment cabinet, when test must assure that measured device with
Cylindrical heater body is concentric, is placed into the method in test fixture, test man's labor using tester's hand end measured device in the past
Fatigue resistance is larger, while being not easy centering, be easy to cause measured device surface scratching.We are in IGCT dynamic characteristic test thus
High-power IGCT device test fixture slide unit positioning mechanism is devised on the matched test fixture of platform.The mechanism applies also for it
The centering of the plate large power semiconductor device test fixture of its type positions.
Utility model content
The purpose of this utility model is to design one kind and can meet in high-power IGCT device detection to facilitate placement and taking-up, together
A kind of high-power IGCT device test fixture slide unit positioning mechanism of the automatic concentric locating mechanism of Shi Keyu cylindrical heater body.
The technical solution of the utility model is: a kind of high-power IGCT device test fixture slide unit positioning mechanism, packet
Press machine and up and down heating body portion and test fixture slide unit positioning mechanism are included, press machine and up and down heating body portion are by oil hydraulic cylinder
(1), bottom plate (2), guide sleeve (3), sliding panel (4), guide post (5), lower calandria (6), upper calandria (7), upper mounted plate (8)
Composition, bottom plate (2), guide post (5), upper mounted plate (8) constitute a portal frame, and (8) are equipped with upper heating on upper mounted plate
Body (7), bottom plate (2) have oil hydraulic cylinder (1), and sliding panel (4) is by guide sleeve (3) along guide post (5) longitudinal movement；Test
Fixture slide unit positioning mechanism is by centralized positioning column (10), element cushion block (11), slip blade (12), supporting plate crossbeam (13), three sections
Sliding rail (14), sliding rail fixed plate (15), centering locating piece (16), spring positioning pearl (17), spring bearer plate (18), support spring
(19), upper and lower guide rod (20) and knob (21) composition；Slip blade (12) two sides are fixed on supporting plate crossbeam (13), two sides
Supporting plate crossbeam (13) and the most inner side slide plate of three section sliding rails (14) fix, it is solid that the outermost of three section sliding rails (14) is fixed on sliding rail
On fixed board (15), knob (21) is fixed on the lower section of slip blade (12) front end, and left and right sides sliding rail fixed plate (15) is fixed
On former and later two spring bearer plates (18), spring bearer plate (18) is connected by about four guide rods (20) and fixture sliding panel (4)
It connects, is equipped with support spring (19) on upper and lower guide rod (20)；On slip blade (12) with the GCT on tested IGCT device (9)
Element corresponding position is machined with step circular hole, and element cushion block (11) is embedded in circular hole, during element cushion block (11) center is equipped with
Heart positioning column (10), the GCT element central on tested IGCT device (9) have corresponding location hole, place tested IGCT device (9)
When the location hole of GCT element central and positioning column (10) are cooperated；Centering locating piece (16) is that opening is U-shaped, and opening is fixed backward
In slip blade (12) in the following, center of arc and the step circular hole on slip blade (12) are concentric, circular arc internal diameter and lower calandria
(6) outer diameter is corresponding；The front end of U-shaped opening is to open oblique angle；Transversely central axis direction is equipped with 2 spiral shells to centering locating piece (16)
Pit screws in spring positioning pearl (17) in hole；Two are equipped on lower calandria (6) the transversely cylindrical surface of central axis direction to erect
To trough with straight angle；When slip blade (12) push-in is bonded centering locating piece (16) inner circle with lower calandria (6) outer circle, realize same
Heart positioning；The elastic steel ball of spring positioning pearl (17) front end, which automatically inserts, simultaneously realizes positioning in lower calandria (6) trough with straight angle.
High-power IGCT device can be easily placed on test fixture by the utility model, and can automatic accurate and fixture
Cylindrical heater body realizes concentric locating.The utility model has application in IGCT dynamic characteristic test platform at present, actual effect
Well, the utility model applies also in other high-power flat circular semiconductor device test fixtures, and front and back is needed to move
The fields such as dynamic and centralized positioning machining, location and installation.
Detailed description of the invention
Fig. 1 is the structure front view of the utility model.
Fig. 2 is the structural side view of the utility model.
Fig. 3 is slide unit positioning mechanism top view.
Fig. 4 is that slide unit positioning mechanism pulls out side view.
Specific embodiment
The utility model primary structure is made of two large divisions: 1 part is press machine and upper and lower calandria；2 parts are this
Utility model core slide unit positioning mechanism (referring to Figure of description dotted box portion).
Press machine and up and down heating body portion be the utility model peripheral part, press machine and up and down heating body portion by
Oil hydraulic cylinder 1, bottom plate 2, guide sleeve 3, sliding panel 4, guide post 5, lower calandria 6, upper calandria 7, upper mounted plate 8 form.
Test fixture slide unit positioning mechanism by centralized positioning column 10, element cushion block 11, slip blade 12, supporting plate crossbeam 13,
Three section sliding rails 14, sliding rail fixed plate 15, centering locating piece 16, spring positioning pearl 17, spring bearer plate 18, support spring 19, up and down
21 composition of guide rod 20 and knob.
1. press machine and up and down heating body portion groundwork process
Press machine and up and down heating body portion be the design peripheral part, pressure generate structure by bottom plate 2, lead
Column 5, upper mounted plate 8 constitute a portal frame, and upper mounted plate 8 is equipped with upper calandria 7, and bottom plate 2 has oil hydraulic cylinder
1, thrust is generated by oil hydraulic cylinder 1 upwards, sliding panel 4 is pushed to be moved upwards along guide post 5 by guide sleeve 3, instantly calandria 6 and upper
Pressure needed for calandria 7 generates after compressing measured device.
There is heating function, temperature, calandria and machine needed for can produce test inside lower calandria 6 and upper calandria 7
There is insulating materials to realize electrical isolation between frame.
2. the designing points and the course of work of the utility model core slide unit positioning mechanism:
1) the anterior-posterior horizontal movement of slide unit positioning mechanism
The utility model main purpose is easily to be put into tested IGCT device 9 in test fixture, due to high-power
The big weight weight of IGCT device volume, and gate drive circuit pcb board area is also very big, and pole is not square when device is directly placed into fixture
Just, supporting plate capable of sliding back and forth is devised thus, measured device is put on supporting plate, then device is pushed into fixture pair by supporting plate
Answer position.
Specific design and working method are as follows:
Referring to Figure of description, 12 two sides of slip blade are fixed on supporting plate crossbeam 13, the supporting plate crossbeam 13 of two sides and three
The most inner side slide plate of section sliding rail 14 is fixed, and the outermost of three section sliding rails 14 is fixed in sliding rail fixed plate 15, sliding rail fixed plate 15
It is fixed on spring bearer plate 18, knob 21 is fixed on the lower section of 12 front end of slip blade.When pull-out slide plate to outermost end
Afterwards, easily measured device can be placed on slip blade 12.
2) vertical movement up and down of slide unit positioning mechanism
It needs to apply certain mechanical pressure when IGCT device detection, when device is by pushing slip blade to be put into fixture
Afterwards, it needs to move upwards in the case where oil hydraulic cylinder pushes and pressure, therefore this this slide unit is applied to measured device by upper and lower calandria
Positioning mechanism must be provided simultaneously with vertical motion capabilities up and down.
Specific design and working method are as follows:
Left and right sides sliding rail fixed plate 15 is fixed on former and later two spring bearer plates 18, and spring bearer plate 18 passes through on four
Lower guide rod 20 is connect with sliding panel 4, and the design of upper and lower 20 middle-end of guide rod has positioning step and there is screw thread in lower end, by nut with
Sliding panel 4 fastens.It is cased with support spring 19 on upper and lower guide rod 20, entire slide unit positioning mechanism is jacked up, in this way by upper
The positioning step of lower 20 middle-end of guide rod can ensure that the lower end surface of the element cushion block 11 under force-free state is higher than lower calandria 6
Upper surface, can ensure that when 12 horizontal movement of slip blade not with lower calandria 6 interfere.
When fixture pushes up the movement of entire slide unit positioning mechanism, when tested IGCT device 9 is contacted with upper calandria 7
Afterwards, support spring 19 is shunk after element cushion block 11 contacts lower calandria 6, and tested IGCT device 9 starts to bear pressure.
3) the centralized positioning solution of slide unit positioning mechanism
IGCT device is gathered by round flat-panel component GCT and the assembling of gate drive circuit pcb board, flat in test
Plate circle GCT element must be placed in one heart under cylinder on calandria, and concentric calandria up and down is to plate member after pressurization
Part GCT applies pressure, therefore this slide unit positioning mechanism must can ensure that measured device concentric locating.
Specific design and working method are as follows:
Step circular hole, element cushion block are machined with the GCT element corresponding position on tested IGCT device 9 on slip blade 12
In 11 insertion step circular holes, 11 center of element cushion block is equipped with the centralized positioning column 10 of polytetrafluoroethylene (PTFE) material, is tested
GCT element central on IGCT device 9 has corresponding location hole, places the positioning of GCT element central when being tested IGCT device 9
Hole and positioning column 10 cooperate；Centering locating piece 16 is that opening is U-shaped, and opening is fixed on slip blade 12 in the following, center of arc backward
Concentric with the step circular hole on slip blade 12, circular arc internal diameter is corresponding with lower 6 outer diameter of calandria；The Front-end Design of U-shaped opening
At oblique angle is opened, lower calandria 6 can easily be imported when to be pushed into；Centering locating piece 16 transversely process by central axis direction
There are 2 threaded holes, screws in spring positioning pearl 17 in hole；It is machined on lower the calandria 6 transversely cylindrical surface of central axis direction
Two vertical trough with straight angle；When the push-in of slip blade 12 is bonded 16 inner circle of centering locating piece with lower 6 outer circle of calandria, realize same
Heart positioning；The elastic steel ball of 17 front end of spring positioning pearl, which automatically inserts, simultaneously realizes positioning in lower 6 trough with straight angle of calandria；When tested
When device stress squeezes, spring positioning pearl 17 can slide along lower 6 trough with straight angle of calandria.Pass through element central hole, positioning column in this way
10, element cushion block 11,12 step circular hole of slip blade, centering locating piece 16, lower calandria 6 realize measured device and up and down heating
Body it is concentric, and by spring positioning pearl 17 realize positioning.
Claims (1)
1. a kind of high-power IGCT device test fixture slide unit positioning mechanism, including press machine and heating body portion and test up and down
Fixture slide unit positioning mechanism, press machine and up and down heating body portion are by oil hydraulic cylinder (1), bottom plate (2), guide sleeve (3), sliding panel
(4), guide post (5), lower calandria (6), upper calandria (7), upper mounted plate (8) composition, it is bottom plate (2), guide post (5), upper solid
Fixed board (8) constitutes a portal frame, and upper mounted plate (8) is equipped with upper calandria (7), and bottom plate (2) has oil hydraulic cylinder
(1), sliding panel (4) is by guide sleeve (3) along guide post (5) longitudinal movement；It is characterized by: test fixture slide unit positioning mechanism by
Centralized positioning column (10), element cushion block (11), slip blade (12), supporting plate crossbeam (13), three section sliding rails (14), sliding rail fixed plate
(15), centering locating piece (16), spring positioning pearl (17), spring bearer plate (18), support spring (19), upper and lower guide rod (20) and
Knob (21) composition, slip blade (12) two sides are fixed on supporting plate crossbeam (13), and the supporting plate crossbeam (13) and three sections of two sides are sliding
The most inner side slide plate of rail (14) is fixed, and the outermost of three section sliding rails (14) is fixed on sliding rail fixed plate (15), and knob (21) is solid
It is scheduled on the lower section of slip blade (12) front end, left and right sides sliding rail fixed plate (15) is fixed on former and later two spring bearer plates (18)
On, spring bearer plate (18) is connect by about four guide rods (20) with fixture sliding panel (4), is set on upper and lower guide rod (20)
Have support spring (19), is machined with step circles with the GCT element corresponding position on tested IGCT device (9) on slip blade (12)
Hole, element cushion block (11) are embedded in circular hole, and element cushion block (11) center is equipped with centralized positioning column (10), are tested IGCT device
(9) the GCT element central on has a corresponding location hole, when placing tested IGCT device (9) by the location hole of GCT element central with
Positioning column (10) cooperation；Centering locating piece (16) is that opening is U-shaped, and opening is fixed on slip blade (12) in the following, in circular arc backward
The heart and the step circular hole on slip blade (12) are concentric, and circular arc internal diameter is corresponding with lower calandria (6) outer diameter；Before U-shaped opening
End is opening oblique angle；Transversely central axis direction is equipped with 2 threaded holes to centering locating piece (16), screws in spring positioning pearl in hole
(17)；Two vertical trough with straight angle are equipped on lower calandria (6) the transversely cylindrical surface of central axis direction；When slip blade (12)
When push-in is bonded centering locating piece (16) inner circle with lower calandria (6) outer circle, concentric locating is realized；Spring positioning pearl simultaneously
(17) elastic steel ball of front end, which automatically inserts, realizes positioning in lower calandria (6) trough with straight angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821081911.1U CN208477069U (en) | 2018-07-09 | 2018-07-09 | High-power IGCT device test fixture slide unit positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821081911.1U CN208477069U (en) | 2018-07-09 | 2018-07-09 | High-power IGCT device test fixture slide unit positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208477069U true CN208477069U (en) | 2019-02-05 |
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ID=65209829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821081911.1U Withdrawn - After Issue CN208477069U (en) | 2018-07-09 | 2018-07-09 | High-power IGCT device test fixture slide unit positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208477069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732482A (en) * | 2018-07-09 | 2018-11-02 | 西安派瑞功率半导体变流技术股份有限公司 | High-power IGCT device test fixtures slide unit detent mechanism |
-
2018
- 2018-07-09 CN CN201821081911.1U patent/CN208477069U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732482A (en) * | 2018-07-09 | 2018-11-02 | 西安派瑞功率半导体变流技术股份有限公司 | High-power IGCT device test fixtures slide unit detent mechanism |
| CN108732482B (en) * | 2018-07-09 | 2023-12-29 | 西安派瑞功率半导体变流技术股份有限公司 | High-power IGCT device test fixture sliding table positioning mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190205 Effective date of abandoning: 20231229 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190205 Effective date of abandoning: 20231229 |