CN102662091A - Double-stroke mechanism - Google Patents
Double-stroke mechanism Download PDFInfo
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- CN102662091A CN102662091A CN2012101795172A CN201210179517A CN102662091A CN 102662091 A CN102662091 A CN 102662091A CN 2012101795172 A CN2012101795172 A CN 2012101795172A CN 201210179517 A CN201210179517 A CN 201210179517A CN 102662091 A CN102662091 A CN 102662091A
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- Prior art keywords
- double stroke
- upper module
- block
- ramp
- cambered surface
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Abstract
The invention discloses a double-stroke mechanism which comprises an upper module and a lower module, wherein the upper module comprises a plane seat and swinging blocks which are hinged with the plane seat and can swing; rollers are arranged at the other ends of the swinging blocks; springs are respectively arranged between the swinging blocks located at the both sides of a hinging shaft and the plane seat; the lower module comprises a fixing seat, and two parallel side boards mounted on the fixing seat; a positioning block is fixed on each side board; a space capable of containing the swinging blocks is formed between the two positioning blocks; each positioning block comprises three sequentially-intersecting faces in the circumference direction; the intersecting faces are an upper inclined face located on the upper face, a concave arc face located on the lower face, and a lower inclined face; and the roller which slides into the concave arc faces along the upper inclined faces can be clamped through the concave arc faces. The roller on the upper module is clamped in the concave arc faces in the positioning blocks, so that a stopping position in the midway of a control stroke can be accurately controlled. The double-stroke mechanism provides double strokes for an ICT (In-Circuit Test), so that two probes with different lengths on the same probe board can be respectively tested, and the test accuracy is not influenced.
Description
Technical field
The present invention relates to a kind of double stroke mechanism, belong to field of mechanical technique.
Background technology
On-line testing ICT (In-Circuit Test) is through to the electrical property of online components and parts and be electrically connected to test and check and manufacture defective and the bad a kind of standard testing means of components and parts, have simple to operate, quick rapidly, characteristics such as localization of fault is accurate.During the ICT test, need test, need the single pass needle plate of polylith usually numerous devices, connection line in the circuit board.If the different probe of length is set on same needle plate; Earlier by long probe with part circuit or the device contacts that will test and test, test the then movement travel of wayward needle plate by short probe and another part circuit or the device contacts that will test then; If movement travel out of true; Then when long probe is tested, short probe also maybe with circuit or device contacts, influence test accuracy.
Summary of the invention
Technical matters to be solved by this invention provides a kind of double stroke mechanism; Can control stroke stop position midway accurately; For the ICT test provides double stroke, two kinds of probes that length is different on the same needle plate can be tested respectively, do not influence test accuracy.
For solving the problems of the technologies described above, the present invention provides a kind of double stroke mechanism, it is characterized in that, comprises vertically disposed upper module and lower module, one of them module can be in vertical direction another block motion relatively;
Said upper module comprises a plane seat and the hinged vertical swinging block of swinging of an end and said plane seat; The said swinging block other end is provided with a roller bearing perpendicular to said swinging block plane, between the said swinging block of said jointed shaft both sides and said plane seat, a spring is set respectively;
Comprise a holder in the said lower module, be installed on wherein last and two the parallel side plates of one side of holder, two side plates form a grasping part; In the grasping part, form between fixing a positioning block on each side plate, two locating pieces one can hold swinging block vertical in the upper module the space;
Said locating piece circumferentially comprise three faces that intersect successively; Be positioned at top ramp and be positioned at following cancave cambered surface, lower inclined plane; Wherein, cancave cambered surface can block the roller bearing that moves to lowest part along said ramp highest point and slide in the said upper module in this cancave cambered surface.
Also comprise spring leaf, said spring leaf one end is resisted against on the rib that ramp highest point and the said lower inclined plane of said locating piece intersect, and the other end of said spring leaf is hinged on the side plate in the said grasping part or is arranged on the fixed block on the side plate.
Have between said locating piece and the said fixed block and can hold the space that the roller bearing on the upper module passes through.
Intersect on the limit of said ramp highest point and one side of said lower inclined plane, and intersect on the another side of said lower inclined plane and one side of said cancave cambered surface, and intersect on the limit of the another side of said cancave cambered surface and said ramp lowest part.
One of them relative face of said two side plates is provided with a groove; One rotating catch is set in the said groove; Said catch can rest on two extreme positions when rotating, and first extreme position is another side and the intersection, limit of said ramp lowest part that is stuck in the cancave cambered surface of the said locating piece that is provided with on this side plate; Second extreme position is for to get in the said groove of this side plate fully.
Rotation axis one end that said catch and passes said holder is connected, and drives said catch by the rotation of said rotation axis and rotates.
The said axle moving axis other end is connected with one handle, and said handle is arranged on the another side different with said side plate of said holder.
On the face of the said holder that said handle is set, also be provided with two limited blocks, said limited block is used to limit the slewing area of said handle.
Said spring is a compression spring.
The length of said roller bearing is not more than said two interpleural distances, can be contained in the said grasping part, and the length of said roller bearing is not less than the distance between said two locating pieces.
The beneficial effect that the present invention reached:
Double stroke of the present invention mechanism; Through the roller bearing on the upper module is snapped in the cancave cambered surface in the lower module locating piece; Can control stroke stop position midway accurately; For the ICT test provides double stroke, two kinds of probes that length is different on the same needle plate can be tested respectively, do not influence test accuracy.
Description of drawings
Fig. 1 is a lower module synoptic diagram in the double stroke of the present invention mechanism;
Fig. 2 is the exploded view of Fig. 1;
Fig. 3 is a upper module synoptic diagram in the double stroke of the present invention mechanism;
Fig. 4 is the exploded view of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Like Fig. 1-shown in Figure 4, comprise lower module 1 and upper module 2 in the double stroke of the present invention mechanism, during work, lower module 1 and upper module 2 vertical setting, one be positioned at below, above being positioned at after the inversion.Comprise long probe and short probe on the needle plate, needle plate is connected with upper module 2, lower module 1 respectively with the platform that is used to support circuit board to be measured.
Double stroke of the present invention mechanism can switch between one-way trip and double stroke, when selecting the double stroke operation, a Halfway Stopping position is provided in the operational process; Make stroke be divided into first section stroke and second section stroke; When position of rest is out of service halfway, by long probe with part circuit or the device contacts that will test and test second section stroke of EOT continued; When second section stroke finishes, make short probe and another part circuit or the device contacts that will test, test.Synoptic diagram when present embodiment is all just being put with two modules for ease of explaining carries out structrual description.
Like Fig. 3, shown in Figure 4, comprise a plane seat 21 and a swinging block 22 vertical in the upper module 2 with plane seat 21, the two ends of swinging block 22 are provided with a lug 221 respectively, and a through hole 222 is set on the lug 221.One of them lug 221a places in the groove 211 on the plane seat 21; And by one pass this lug 221a bearing pin 23 be connected on the swinging block 22; Be provided with among another lug 221b one vertically pass swinging block 22 roller bearing 24; After roller bearing 24 passes this lug 221b, be positioned at roller bearing 24 equal in length of swinging block 22 both sides.Straight line to connect two through hole 222 centers on the lug 221 is an axis of symmetry, on swinging block 22, goes back two slotted holes 224 perpendicular to plane seat 21 that are provided with of symmetry, is provided with one in the slotted hole 224 and is resisted against the spring 25 that compresses on the plane seat 21.This slotted hole 224 can be blind hole, also can be through hole, and through hole in the present embodiment is if through hole then is provided with one and prevents the gear shaft 26 that spring 25 ejects, like the screw that is threaded with through hole top on through hole top.
Like Fig. 1, shown in Figure 2, comprise a holder 11 in the lower module 1, be installed on above the holder 11 and parallel 12, two side plates of two side plates 12 form a grasping part 13; In the grasping part 13, the space that fixedly formation one can be held swinging block vertical in the upper module 2 22 between 14, two locating pieces 14 of a positioning block on each side plate 12.Locating piece 14 circumferentially comprise three faces; Be positioned at top ramp 141 and be positioned at following cancave cambered surface 142, lower inclined plane 143; Form a subtriangular piece; Intersect on the limit of ramp 141 highest points and one side of lower inclined plane 143, and intersect on one side of the another side of lower inclined plane 143 and cancave cambered surface 142, and intersect on the limit of the another side of cancave cambered surface 142 and ramp 141 lowest parts; Wherein, cancave cambered surface 142 can block the roller bearing 24 in the upper module 2 that gets into wherein, when the roller bearing 24 in the upper module 2 is stuck in cancave cambered surface 142, is the Halfway Stopping position.One end 151 of spring leaf 15 is resisted against on the rib that ramp 141 highest points and the lower inclined plane 143 of locating piece 14 intersect; The other end 152 of spring leaf 15 is hinged on the fixed block 16; Under the no external force effect; Spring leaf 15 fits tightly on locating piece 14, and after external force was pushed spring leaf 15 open and removed external force again, spring leaf 15 automatically reset.Fixed block 16 is fixed on the holder 11 or is fixed on the side plate 12.The space that has the roller bearing 24 that can hold on the upper module 2 to pass through between locating piece 14 and the fixed block 16.One handle 17 be arranged on holder 11 below, handle 17 is connected with rotation axis 18 1 ends, axle is after a moving axis 18 passes holder 11, its other end is connected with a catch 19, catch 19 is arranged in groove 121 set on one of them side plate 12.Through pulling handle 17, catch 19 is rotated thereupon, catch 19 can rest on two extreme positions when rotating; Primary importance is to be stuck in the cancave cambered surface 142 of the locating piece 14 that is provided with on this side plate 12 near ramp 141 places; Block the roller bearing 24 in the upper module 2, it can't be got in the cancave cambered surface 142 be stuck, when promptly catch 19 is in primary importance; Mechanism of the present invention one-way trip mode operation this moment only provides LAP; The second place is for to change in the groove 121 of side plate 12 fully, and 24 motions of 19 pairs of roller bearings of catch do not have influence, and mechanism of the present invention double stroke mode operation this moment can provide two sections strokes, comprises a Halfway Stopping position midway.Following two limited blocks that also are provided with restriction handle 17 slewing areas of holder 11, catch 19 rotated between two extreme positions when handle 17 was pulled.
By the effect of bearing pin 23, swinging block 22 is connected with plane seat 21 all the time, and under 25 effects of two springs, swinging block 22 can be that swing at the center with bearing pin 23.When the roller bearing on the swinging block 22 24 is stressed,, swinging block 22 is swung around bearing pin 23 by the effect of two springs 25.
During work; Above in lower module 1 or the upper module 2 one of them be arranged at with being inverted; Only being arranged at lower module 1 top with upper module 2 in the present embodiment is example, upper module 2 and lower module 1 vertical setting, and roller bearing 24 is positioned on the vertical direction of highest point of locating piece 14 ramps 141; Upper module 2 is only in movement in vertical direction, and horizontal direction does not have motion.Double stroke of the present invention mechanism at this moment, pulls handle 17 with the double stroke mode operation, makes catch 19 be positioned at the second place, promptly changes over to fully in the groove 121 of side plate 12.When upper module 2 when lower module 1 direction is promptly moved downwards gradually, at first, roller bearing 24 two ends in the upper module 2 on the swinging block 22 contact with the ramp 141 of 1 two locating pieces 14 of lower module respectively; Upper module 2 continues to move downward; Receive the obstruction of ramp 141, roller bearing 24 will move to lowest part from highest point along ramp 141, and two 25 1 on springs are stressed in the upper module 2; Another receives pulling force, swinging block 22 swings.Upper module 2 continues to move downward; Stopping of roller bearing 24 no catch 19; Will be from the lowest part of ramp 141 around cancave cambered surface 142 to locating piece 14; The roller bearing 24 that will be got into wherein by cancave cambered surface 142 blocks, and be the Halfway Stopping position this moment, and the long probe that is used to test and a part of circuit to be measured or device contacts are tested.Behind the EOT, upper module 2 continues to move downward, and finishes out of servicely until second stroke, at this moment, is tested by short probe and another part circuit to be measured or device contacts.In this process, swinging block 22 receives the effect of spring 25, makes roller bearing 24 that the trend of homing arranged; Therefore, when the spring that is drawn 25 overcomes the friction force of 142 of roller bearing 24 and cancave cambered surfaces, will spur swinging block 22 homings; Roller bearing 24 will break away from from cancave cambered surface 142, move and will touch spring leaf 15 along lower inclined plane 143, push the highest point position that is returned to ramp 141 behind the spring leaf 15 open; Spring leaf 15 automatically resets immediately, continues to be stuck on the locating piece 14.After second stroke finished, upper module 2 was returned to initial position, repeated said process, carried out the next round test.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and distortion, these improvement and distortion also should be regarded as protection scope of the present invention.
Claims (10)
1. a double stroke mechanism is characterized in that, comprises vertically disposed upper module and lower module, one of them module can be in vertical direction another block motion relatively;
Said upper module comprises a plane seat and the hinged vertical swinging block of swinging of an end and said plane seat; The said swinging block other end is provided with a roller bearing perpendicular to said swinging block plane, between the said swinging block of said jointed shaft both sides and said plane seat, a spring is set respectively;
Comprise a holder in the said lower module, be installed on wherein last and two the parallel side plates of one side of holder, two side plates form a grasping part; In the grasping part, form between fixing a positioning block on each side plate, two locating pieces one can hold swinging block vertical in the upper module the space;
Said locating piece circumferentially comprise three faces that intersect successively; Be positioned at top ramp and be positioned at following cancave cambered surface, lower inclined plane; Wherein, cancave cambered surface can block the roller bearing that moves to lowest part along said ramp highest point and slide in the said upper module in this cancave cambered surface.
2. double stroke according to claim 1 mechanism; It is characterized in that; Also comprise spring leaf; Said spring leaf one end is resisted against on the rib that ramp highest point and the said lower inclined plane of said locating piece intersect, and the other end of said spring leaf is hinged on the side plate in the said grasping part or is arranged on the fixed block on the side plate.
3. double stroke according to claim 2 mechanism is characterized in that having between said locating piece and the said fixed block and can hold the space that the roller bearing on the upper module passes through.
4. double stroke according to claim 1 mechanism; It is characterized in that; Intersect on the limit of said ramp highest point and one side of said lower inclined plane, and intersect on the another side of said lower inclined plane and one side of said cancave cambered surface, and intersect on the limit of the another side of said cancave cambered surface and said ramp lowest part.
5. double stroke according to claim 4 mechanism; It is characterized in that; One of them relative face of said two side plates is provided with a groove; One rotating catch is set in the said groove, and said catch can rest on two extreme positions when rotating, and first extreme position is another side and the intersection, limit of said ramp lowest part that is stuck in the cancave cambered surface of the said locating piece that is provided with on this side plate; Second extreme position is for to get in the said groove of this side plate fully.
6. double stroke according to claim 5 mechanism is characterized in that rotation axis one end that said catch and passes said holder is connected, and drives said catch by the rotation of said rotation axis and rotates.
7. double stroke according to claim 6 mechanism is characterized in that, the said axle moving axis other end is connected with one handle, and said handle is arranged on the another side different with said side plate of said holder.
8. double stroke according to claim 7 mechanism is characterized in that on the face of the said holder that said handle is set, also be provided with two limited blocks, said limited block is used to limit the slewing area of said handle.
9. double stroke according to claim 1 mechanism is characterized in that said spring is a compression spring.
10. double stroke according to claim 1 mechanism is characterized in that the length of said roller bearing is not more than said two interpleural distances, can be contained in the said grasping part, and the length of said roller bearing is not less than the distance between said two locating pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179517.2A CN102662091B (en) | 2012-06-04 | 2012-06-04 | Double-stroke mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179517.2A CN102662091B (en) | 2012-06-04 | 2012-06-04 | Double-stroke mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102662091A true CN102662091A (en) | 2012-09-12 |
| CN102662091B CN102662091B (en) | 2014-10-01 |
Family
ID=46771620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210179517.2A Active CN102662091B (en) | 2012-06-04 | 2012-06-04 | Double-stroke mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102662091B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214374A (en) * | 1991-12-12 | 1993-05-25 | Everett/Charles Contact Products, Inc. | Dual level test fixture |
| US5342206A (en) * | 1993-07-15 | 1994-08-30 | The Whitaker Corporation | Socket for direct electrical connection to an integrated circuit chip |
| CN201173959Y (en) * | 2008-01-30 | 2008-12-31 | 昆山鸿汉电子有限公司 | Two stage type fixture for press |
| CN201278012Y (en) * | 2008-08-25 | 2009-07-22 | 昆山鸿汉电子有限公司 | Vacuum two phase type tool |
| CN201497752U (en) * | 2009-04-24 | 2010-06-02 | 昆山鸿汉电子有限公司 | Automatic lateral-plugging/unplugging device for jig |
| CN202649257U (en) * | 2012-06-04 | 2013-01-02 | 昆山迈致治具科技有限公司 | Double-stroke mechanism |
-
2012
- 2012-06-04 CN CN201210179517.2A patent/CN102662091B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214374A (en) * | 1991-12-12 | 1993-05-25 | Everett/Charles Contact Products, Inc. | Dual level test fixture |
| US5342206A (en) * | 1993-07-15 | 1994-08-30 | The Whitaker Corporation | Socket for direct electrical connection to an integrated circuit chip |
| CN201173959Y (en) * | 2008-01-30 | 2008-12-31 | 昆山鸿汉电子有限公司 | Two stage type fixture for press |
| CN201278012Y (en) * | 2008-08-25 | 2009-07-22 | 昆山鸿汉电子有限公司 | Vacuum two phase type tool |
| CN201497752U (en) * | 2009-04-24 | 2010-06-02 | 昆山鸿汉电子有限公司 | Automatic lateral-plugging/unplugging device for jig |
| CN202649257U (en) * | 2012-06-04 | 2013-01-02 | 昆山迈致治具科技有限公司 | Double-stroke mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102662091B (en) | 2014-10-01 |
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