CN102662091B - Double-stroke mechanism - Google Patents
Double-stroke mechanism Download PDFInfo
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- CN102662091B CN102662091B CN201210179517.2A CN201210179517A CN102662091B CN 102662091 B CN102662091 B CN 102662091B CN 201210179517 A CN201210179517 A CN 201210179517A CN 102662091 B CN102662091 B CN 102662091B
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- double stroke
- upper module
- module
- cambered surface
- ramp
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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) be to test to check by the electrical property to online components and parts and electrical connection to manufacture defect and the bad a kind of standard testing means of components and parts, have simple to operate, quick rapidly, the feature such as localization of fault is accurate.When ICT test, need to test numerous devices, connection line in a circuit board, conventionally need the single pass needle plate of polylith.If the probe that length is different is set on same needle plate, first by long probe with part circuit or the device contacts that will test and test, then tested by short probe and another part circuit or the device contacts that will test, the movement travel of wayward needle plate, if movement travel out of true, in the time that long probe is tested, short probe also may with circuit or device contacts, affect test accuracy.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of double stroke mechanism, can control accurately stroke stop position midway, for ICT test provides double stroke, two kinds of probes that on same needle plate, length is different can be tested respectively, do not affect test accuracy.
For solving the problems of the technologies described above, the invention provides a kind of double stroke mechanism, it is characterized in that, comprise vertically disposed upper module and lower module, one of them module can be in vertical direction another block motion relatively;
Described upper module comprises a plane seat and the hinged swingable vertical swinging block of one end and described plane seat, the described swinging block other end arranges a roller bearing perpendicular to described swinging block plane, between the described swinging block of described jointed shaft both sides and described plane seat, a spring is set respectively;
Described lower module comprises a holder, be installed on wherein upper and two the parallel side plates of one side of holder, and two side plates form a grasping part; In grasping part, on each side plate, fix a positioning block, between two locating pieces, form a space that can hold swinging block vertical in upper module;
Described locating piece circumferentially comprise three crossing faces successively, be positioned at ramp above and be positioned at cancave cambered surface, lower inclined plane below, wherein, cancave cambered surface can block the roller bearing that moves to lowest part along described ramp highest point and slide in the described upper module in this cancave cambered surface.
Also comprise spring leaf, described spring leaf one end is resisted against on the ramp highest point of the described locating piece rib crossing with described lower inclined plane, and the other end of described spring leaf is hinged on described in one on the side plate in grasping part or is arranged on the fixed block on side plate.
The space that has the roller bearing that can hold on upper module to pass through between described locating piece and described fixed block.
The limit of described ramp highest point is crossing with one side of described lower inclined plane, and the another side of described lower inclined plane is crossing with one side of described cancave cambered surface, and the another side of described cancave cambered surface is crossing with the limit of described ramp lowest part.
On relative one of them face of described two side plates, be provided with a groove, one rotating catch is set in described groove, described catch can rest on two extreme positions while rotation, and the first extreme position is the another side of cancave cambered surface and the intersection, limit of described ramp lowest part that is stuck in the described locating piece arranging on this side plate; The second extreme position is to enter completely in the described groove of this side plate.
Described catch is connected through rotation axis one end of described holder with one, drives described catch to rotate by the rotation of described rotation axis.
The described axle moving axis other end is connected with one handle, and described handle is arranged on the another side different with described side plate of described holder.
On the face of described holder that described handle is set, be also provided with two limited blocks, described limited block is for limiting the slewing area of described handle.
Described spring is Compress Spring.
The length of described roller bearing is not more than described two interpleural distances, can be contained in described grasping part, and the length of described roller bearing is not less than the distance between described two locating pieces.
The beneficial effect that the present invention reaches:
Double stroke of the present invention mechanism, by the roller bearing on upper module is snapped in the cancave cambered surface in lower module locating piece, can control accurately stroke stop position midway, for ICT test provides double stroke, two kinds of probes that on same needle plate, length is different can be tested respectively, do not affect test accuracy.
Brief description of the drawings
Fig. 1 is lower module schematic diagram in double stroke of the present invention mechanism;
Fig. 2 is the exploded view of Fig. 1;
Fig. 3 is upper module schematic diagram in double stroke of the present invention mechanism;
Fig. 4 is the exploded view of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As Figure 1-Figure 4, double stroke of the present invention mechanism comprises lower module 1 and upper module 2, when work, and lower module 1 setting vertical with upper module 2, one is positioned at below, is positioned at top after an inversion.On needle plate, comprise long probe and short probe, needle plate is connected with upper module 2, lower module 1 respectively with the platform for supporting circuit board to be measured.
Double stroke of the present invention mechanism can switch between one-way trip and double stroke, in the time selecting double stroke operation, a Halfway Stopping position is provided in operational process, make stroke be divided into first paragraph stroke and second segment 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, test finishes rear continuation second segment stroke, in the time that second segment stroke finishes, make short probe and another part circuit or the device contacts that will test, test.Schematic diagram when the present embodiment is all just being put with two modules for ease of illustrating carries out structure description.
As shown in Figure 3, Figure 4, upper module 2 comprises the swinging block 22 that a plane seat 21 is vertical with plane seat 21 with, and the two ends of swinging block 22 arrange respectively a lug 221, and a through hole 222 is set on lug 221.One of them lug 221a is placed in the groove 211 on plane seat 21, and be connected on swinging block 22 through the bearing pin 23 of this lug 221a by one, the one vertical roller bearing 24 through swinging block 22 is set in another lug 221b, roller bearing 24 is through after this lug 221b, and the roller bearing 24 that is positioned at swinging block 22 both sides is equal in length.Taking the straight line that connects two through hole 222 centers on lug 221 as axis of symmetry, also symmetrically on swinging block 22 be provided with two slotted holes 224 perpendicular to plane seat 21, slotted hole 224 is interior arranges a spring 25 that is resisted against compression on plane seat 21.This slotted hole 224 can be blind hole, can be also through hole, and through hole in the present embodiment, if through hole arranges one and prevents the gear shaft 26 that spring 25 ejects, as the screw being threaded with through hole top on through hole top.
As shown in Figure 1 and Figure 2, lower module 1 comprises a holder 11, is installed on holder 11 above and parallel 12, two side plates 12 of two side plates form a grasping part 13; In grasping part 13, on each side plate 12, fix between 14, two locating pieces 14 of a positioning block and form a space that can hold swinging block vertical in upper module 2 22.Locating piece 14 circumferentially comprise three faces, be positioned at ramp 141 above and be positioned at cancave cambered surface 142, lower inclined plane 143 below, form a subtriangular piece, the limit of ramp 141 highest points is crossing with one side of lower inclined plane 143, the another side of lower inclined plane 143 is crossing with one side of cancave cambered surface 142, and the another side of cancave cambered surface 142 is crossing with the limit of ramp 141 lowest parts; Wherein, cancave cambered surface 142 can block the roller bearing 24 in the upper module 2 entering wherein, when the roller bearing 24 in upper module 2 is stuck in cancave cambered surface 142, is Halfway Stopping position.One end 151 of spring leaf 15 is resisted against on ramp 141 highest points of locating piece 14 rib crossing with lower inclined plane 143, the other end 152 of spring leaf 15 is hinged on a fixed block 16, under External Force Acting, spring leaf 15 fits tightly on locating piece 14, external force is pushed spring leaf 15 open and is removed after external force again, and spring leaf 15 automatically resets.Fixed block 16 is fixed on holder 11 or is fixed on side plate 12.The space that has the roller bearing 24 that can hold on upper module 2 to pass through between locating piece 14 and fixed block 16.One handle 17 is arranged on below holder 11, and handle 17 is connected with rotation axis 18 one end, and axle moving axis 18 is through after holder 11, and its other end is connected with a catch 19, and catch 19 is arranged in groove 121 set on one of them side plate 12.By pulling handle 17, can make catch 19 rotate thereupon, when rotating, catch 19 can rest on two extreme positions, primary importance is to be stuck in the cancave cambered surface 142 of the locating piece 14 arranging on this side plate 12 near ramp 141 places, block the roller bearing 24 in upper module 2, it cannot be entered in cancave cambered surface 142 and be stuck, catch 19 is in the time of primary importance, mechanism of the present invention is one-way trip mode operation now, and LAP is only provided; The second place is to proceed to completely in the groove 121 of side plate 12, and catch 19 is on roller bearing 24 motions without impact, and mechanism of the present invention is double stroke mode operation now, and two sections of strokes can be provided, and comprises a Halfway Stopping position midway.Two limited blocks that are also provided with restriction handle 17 slewing areas below holder 11, when handle 17 is pulled, catch 19 rotates between two extreme positions.
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 swing centered by bearing pin 23.In the time that the roller bearing 24 on swinging block 22 is stressed, by the effect of two springs 25, also can make swinging block 22 swing around bearing pin 23.
When work, by in lower module 1 or upper module 2 one of them be inverted be arranged at top, in the present embodiment, be only arranged at lower module 1 top as example taking upper module 2, upper module 2 setting vertical with lower module 1, and roller bearing 24 is positioned in the vertical direction of highest point of locating piece 14 ramps 141, upper module 2 is motion in the vertical direction only, and horizontal direction is without motion.Double stroke of the present invention mechanism, with double stroke mode operation, now, pulls handle 17, makes catch 19 be positioned at the second place, proceeds to completely in the groove 121 of side plate 12.In the time that upper module 2 moves downwards gradually to lower module 1 direction, first, roller bearing 24 two ends in upper module 2 on 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, be subject to the obstruction of ramp 141, roller bearing 24 will move to lowest part from highest point along ramp 141, and in upper module 2, two 25 1, springs are stressed, another is subject to pulling force, and swinging block 22 swings.Upper module 2 continues to move downward, roller bearing 24 stops without catch 19, by the lowest part from ramp 141 around the cancave cambered surface 142 to locating piece 14, by cancave cambered surface 142, the roller bearing 24 entering is wherein blocked, be now Halfway Stopping position, test for the longer probe tested and a part of circuit to be measured or device contacts.After test finishes, upper module 2 continues to move downward, until that the second stroke finishes is out of service, now, is tested by shorter probe and another part circuit to be measured or device contacts.In this process, swinging block 22 is subject to the effect of spring 25, make roller bearing 24 have the trend of homing, therefore, when the spring 25 of tension overcomes the friction force between roller bearing 24 and cancave cambered surface 142, to pull swinging block 22 homings, roller bearing 24 will depart 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 after spring leaf 15 open, spring leaf 15 automatically resets immediately, continues to be stuck on locating piece 14.After the second stroke finishes, upper module 2 is returned to initial position, repeats said process, carries out next round test.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (10)
1. a double stroke mechanism, is characterized in that, comprises upper module and lower module, and upper module and lower module are positioned on a perpendicular line, and one of them module can be along perpendicular line another block motion relatively;
Described upper module comprises a plane seat and the hinged swingable vertical swinging block of one end and described plane seat, the described swinging block other end arranges a roller bearing perpendicular to described swinging block plane, between the described swinging block of jointed shaft both sides and described plane seat, a spring is set respectively;
Described lower module comprises a holder, be installed on wherein upper and two the parallel side plates of one side of holder, and two side plates form a grasping part; In grasping part, on each side plate, fix a positioning block, between two locating pieces, form a space that can hold swinging block vertical in upper module;
Described locating piece circumferentially comprise three crossing faces successively, be positioned at ramp above and be positioned at cancave cambered surface, lower inclined plane below, wherein, cancave cambered surface can block the roller bearing that moves to lowest part along described ramp highest point and slide in the described upper module in this cancave cambered surface.
2. double stroke according to claim 1 mechanism, it is characterized in that, also comprise spring leaf, described spring leaf one end is resisted against on the ramp highest point of the described locating piece rib crossing with described lower inclined plane, and the other end of described spring leaf is hinged on described in one on the side plate in grasping part or is arranged on the fixed block on side plate.
3. double stroke according to claim 2 mechanism, is characterized in that the space that has the roller bearing that can hold on upper module to pass through between described locating piece and described fixed block.
4. double stroke according to claim 1 mechanism, it is characterized in that, the limit of described ramp highest point is crossing with one side of described lower inclined plane, and the another side of described lower inclined plane is crossing with one side of described cancave cambered surface, and the another side of described cancave cambered surface is crossing with the limit of described ramp lowest part.
5. double stroke according to claim 4 mechanism, it is characterized in that, on relative one of them face of described two side plates, be provided with a groove, one rotating catch is set in described groove, described catch can rest on two extreme positions while rotation, and the first extreme position is the another side of cancave cambered surface and the intersection, limit of described ramp lowest part that is stuck in the described locating piece arranging on this side plate; The second extreme position is to enter completely in the described groove of this side plate.
6. double stroke according to claim 5 mechanism, is characterized in that, described catch is connected through rotation axis one end of described holder with one, drives described catch to rotate by the rotation of described rotation axis.
7. double stroke according to claim 6 mechanism, is characterized in that, the described rotation axis other end is connected with one handle, and described handle is arranged on the face different with described side plate of described holder.
8. double stroke according to claim 7 mechanism, is characterized in that, is also provided with two limited blocks on the face of described holder that described handle is set, and described limited block is for limiting the slewing area of described handle.
9. double stroke according to claim 1 mechanism, is characterized in that, described spring is Compress Spring.
10. double stroke according to claim 1 mechanism, is characterized in that, the length of described roller bearing is not more than described two interpleural distances, can be contained in described grasping part, and the length of described roller bearing is not less than the distance between described 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 CN102662091A (en) | 2012-09-12 |
| CN102662091B true CN102662091B (en) | 2014-10-01 |
Family
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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 |
|---|---|
| CN102662091A (en) | 2012-09-12 |
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