CN115856370A - Flying probe module and flying probe tester - Google Patents
Flying probe module and flying probe tester Download PDFInfo
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- CN115856370A CN115856370A CN202310050135.8A CN202310050135A CN115856370A CN 115856370 A CN115856370 A CN 115856370A CN 202310050135 A CN202310050135 A CN 202310050135A CN 115856370 A CN115856370 A CN 115856370A
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- 239000000523 sample Substances 0.000 title claims description 71
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 20
- 229910000679 solder Inorganic materials 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 230000005291 magnetic effect Effects 0.000 description 66
- 230000005294 ferromagnetic effect Effects 0.000 description 15
- 238000003466 welding Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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Abstract
The application discloses fly needle module and fly needle test machine includes: the connecting bracket comprises a first mounting part, a second mounting part and at least two connecting arms, the at least two connecting arms are arranged between the first mounting part and the second mounting part at intervals along a first direction, and one side of the second mounting part, which is far away from the first mounting part, is provided with a first rotation stopping surface; the flying needle is rotationally connected to one side, away from the first mounting part, of the second mounting part, and the rotational axial direction of the flying needle is perpendicular to the first direction; the two ends of the first elastic piece are respectively connected with the flying needle and the second mounting part so as to pull the flying needle to abut against the first rotation stopping surface. The application provides a fly needle module and fly needle test machine for fly the needle by the solder joint top push down not only along with the linking bridge swing and can also carry out the rotation of micro-angle relatively linking bridge, with to fly the needle by the position offset that the solder joint top pushed the in-process formed and compensate, reduce and fly the needle because of the position offset and form on the solder joint draw the trace amount.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a flying probe module and a flying probe testing machine.
Background
The flying probe testing machine is used for detecting the circuit board to judge whether the circuit board has the problems of short circuit and the like. The flying probe testing machine comprises a flying probe module, and the flying probe module is contacted with welding spots on the circuit board at the same position. Chinese patent (application number: CN 201220294377.9) discloses a probe holder of a flying probe testing machine, wherein a mounting part of a side head holder is provided with a through mounting hole, and a screw passes through the mounting hole and is screwed with a testing needle so as to fix the testing needle on the side head holder.
The lateral head support can prevent the test needle from moving in parallel in the test process, namely, the test needle still has a certain amount of position deviation in the process of being pushed and moved by the welding point, so that the test needle can form scratches on the welding point.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a flying probe module and a flying probe testing machine.
In a first aspect, the present application provides a flying probe module, comprising:
the connecting bracket comprises a first mounting part, a second mounting part and at least two connecting arms, the at least two connecting arms are arranged between the first mounting part and the second mounting part at intervals along a first direction, and one side of the second mounting part, which is far away from the first mounting part, is provided with a first rotation stopping surface;
the flying needle is in a blade shape, is rotatably connected to one side of the second mounting part far away from the first mounting part, and has a rotating axial direction vertical to the first direction;
the two ends of the first elastic piece are respectively connected with the flying needle and the second mounting part so as to pull the flying needle to abut against the first rotation stopping surface.
Furthermore, the flying needle is provided with a stopping protrusion, the stopping protrusion is located on one side, close to the needle point portion of the flying needle, of the rotating axis of the flying needle, the second installation portion is provided with a stopping groove, the stopping protrusion is inserted into the stopping groove, the stopping groove is provided with a first groove wall surface and a second groove wall surface which are arranged at intervals along a first direction, the second groove wall surface is close to the needle point portion, the stopping protrusion is matched with the first groove wall surface in a stopping mode, and a gap is formed between the stopping protrusion and the second groove wall surface.
Furthermore, one side of the second installation part, which is far away from the first installation part, is also provided with a second rotation stopping surface, the first rotation stopping surface and the second rotation stopping surface are respectively positioned at two sides of the rotation axis of the flying needle, and the rotation angle of the flying needle is limited within a preset angle through the abutting fit of the first rotation stopping surface and the second rotation stopping surface on the flying needle.
Further, the preset angle is within 10 °.
Further, the second installation department is including keeping away from the first surface of first installation department and the second surface that links to each other with the first surface, and the second surface is located one side that the first surface is close to the pinpoint portion of flying the needle, and the first surface is concave to be equipped with the mounting groove, and the mounting groove extends to the second surface along the first direction, and flying the needle rotates and sets up in the mounting groove, and the mounting groove has two third groove wall surfaces that set up along the rotation axial interval of flying the needle, and flying the needle is spacing to be set up between two third groove wall surfaces.
Further, one side that first installation department was kept away from to the second installation department still has the second and ends the face of revolving, first end is revolved the face and is located the both sides of the axis of rotation of flying the needle respectively with the second, the mounting groove has the fourth groove wall that is located between two third groove walls, the fourth groove wall includes first face section and the second face section that sets up along the first direction, the second face section is perpendicular with the pivot axis of flying the needle, first face section slope sets up and the one end that the second face section was kept away from to first face section is more close to first installation department, the part of second face section constitutes first end and revolves the face, the part of first face section constitutes the second end and revolves the face.
Furthermore, the second face section is concavely provided with an accommodating groove, and the first elastic piece is accommodated in the accommodating groove.
Furthermore, one side of the flying needle close to the wall surface of the third groove is provided with a wear-reducing ring, and the periphery of the rotation axis of the flying needle is sleeved with the wear-reducing ring.
Further, the first elastic member is a spring.
In a second aspect, the present application further provides a flying probe testing machine, including the flying probe module.
The application provides a fly needle module and fly needle test machine, rotate through flying the needle and connect in one side of linking bridge, the both ends of first elastic component are connected with flying needle and second installation department respectively and fly needle butt in first rotation plane in order to stimulate, make fly the needle not only along with linking bridge swing and can also carry out the rotation of micro-angle relatively linking bridge under being pushed away by the solder joint top, compensate at the offset that the in-process that is pushed away and remove by the solder joint top to flying the needle, reduce the trace amount of drawing that flies the needle formed on the solder joint because of offset.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a flying probe module according to an embodiment of the present disclosure;
FIG. 2 is a schematic top view of a structure formed by a connecting bracket and a flying probe according to an embodiment of the present disclosure;
FIG. 3 is an exploded view of the attachment bracket and the flying probe according to an embodiment of the present disclosure;
fig. 4 is a schematic partial structural view of a flying probe module when a test flying probe is in a deformed position according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a first end of the present application as it passes through an adjustment portion according to an embodiment of the present application;
fig. 6 is a schematic partial structural view of a flying probe module when a test flying probe is in a reset position according to an embodiment of the present disclosure;
fig. 7 is a structural sectional view of a magnetic member according to an embodiment of the present application.
Detailed description of the preferred embodiments
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
Referring to fig. 1-3, an embodiment of the present application provides a flying probe module, which includes a connecting bracket, a flying probe 220 and a first elastic member, wherein the flying probe 220 and the first elastic member are disposed on the connecting bracket. The connecting bracket comprises a first mounting part 212, a second mounting part 211 and at least two connecting arms, the at least two connecting arms are arranged between the first mounting part 212 and the second mounting part 211 at intervals along a first direction, and two ends of each connecting arm are connected to the first mounting part 212 and the second mounting part 211 respectively. The two connecting arms are respectively a first connecting arm 213 and a second connecting arm 214, the length of the second connecting arm 214 is greater than that of the first connecting arm 213, the two sides of the junction of the first connecting arm 213 and the first installation part 212 and the two sides of the junction of the first connecting arm 213 and the second installation part 211 are both provided with arc-shaped first grooves 2131, and the two sides of the junction of the second connecting arm 214 and the first installation part 212 and the two sides of the junction of the second connecting arm 214 and the second installation part 211 are both provided with arc-shaped second grooves 2132. One side of the second mounting portion 211, which is far away from the first mounting portion 212, has a first rotation stopping surface, and the first rotation stopping surface is used for being in rotation stopping fit with the flying needle 220. The flying needle 220 is in a blade shape, the flying needle 220 is disposed on one side of the second mounting portion 211 far away from the first mounting portion 212 and is rotatably connected with the second mounting portion 211, and the rotation axial direction of the flying needle 220 is perpendicular to the first direction. Two ends of the first elastic element are respectively connected with the flying needle 220 and the second mounting part 211 so as to pull the flying needle 220 to abut against the first rotation stop surface. In the testing process of the flying probe 220, the flying probe 220 is in pushing fit with the welding spot, in the process that the flying probe 220 is pushed by the welding spot, the two connecting arms swing to drive the flying probe 220 to move upwards, in the process that the flying probe 220 moves upwards, the friction force between the tip part 222 of the flying probe 220 and the welding spot is utilized to drive the flying probe 220 to rotate in a micro-angle relative to the second mounting part 211, so that the position deviation formed in the process that the flying probe 220 is pushed by the welding spot is compensated, and the trace amount of the flying probe 220 on the welding spot due to the position deviation is reduced. When the abutting engagement between the tip 222 of the flying probe 220 and the welding spot is released, the flying probe 220 automatically rotates to the initial position under the elastic force of the first elastic member, where the initial position is the position of the flying probe 220 when the first rotation-stopping surface is in the rotation-stopping abutting engagement.
The flying needle 220 and the second mounting portion 211 can be rotatably connected through a first rotating shaft. Preferably, the flying probe 220 is attached to the second mounting portion 211 by a bolt assembly, the threaded rod of which constitutes the first axis of rotation, to facilitate the removal of the flying probe 220.
In some embodiments of the present application, the flying needle 220 is provided with a stopping protrusion 221, the stopping protrusion 221 is located on one side of the rotation axis of the flying needle 220 close to the needle tip portion 222 of the flying needle 220, the second mounting portion 211 is provided with a stopping groove 2111, the stopping protrusion 221 is inserted into the stopping groove 2111, the stopping groove 2111 has a first groove wall surface 2112 and a second groove wall surface 2113 which are arranged at intervals in the first direction, and the second groove wall surface 2113 is arranged close to the needle tip portion 222. The stopping protrusion 221 is matched with the first groove wall 2112 in a stopping manner, so that part of acting force applied to the flying probe 220 by the welding spot can be borne by the stopping protrusion 221, and the protection of the first rotating shaft is increased. A gap is provided between the stopper projection 221 and the second groove wall surface 2113 so that the stopper projection 221 can smoothly enter and exit the stopper groove 2111.
The stopping protrusion 221 is preferably a plate-shaped structure, and has a large bearing area, so that the service life of the stopping protrusion 221 is prolonged.
In some embodiments of the present application, a side of the second mounting portion 211, which is far away from the first mounting portion 212, further has a second rotation stopping surface, the first rotation stopping surface and the second rotation stopping surface are respectively located at two sides of the rotation axis of the flying needle 220, and the rotation angle of the flying needle 220 is limited within a preset angle by the abutting engagement of the first rotation stopping surface and the second rotation stopping surface on the flying needle 220. By the arrangement, the rotation angle of the flying probe 220 is limited, and the condition that the rotation angle of the flying probe 220 is too large is avoided.
Wherein the preset angle is within 10 degrees. Preferably, the preset angle is 5 °, 6 °, etc.
In some embodiments of the present application, the second mounting portion 211 includes a first surface 2114 away from the first mounting portion 212 and a second surface 2115 connected to the first surface 2114, the second surface 2115 is located on a side of the first surface 2114 close to the tip portion 222 of the flying pin 220, the first surface 2114 is concavely provided with a mounting groove 2116, the mounting groove 2116 extends to the second surface 2115 along the first direction, the flying pin 220 is rotatably disposed in the mounting groove 2116, and the mounting groove 2116 has two third groove wall surfaces 2117 arranged at intervals along the rotating axial direction of the flying pin 220. The flying pin 220 is disposed between the two third groove wall surfaces 2117 in a limited manner, that is, the flying pin 220 cannot be displaced in the direction of the axis of rotation of the flying pin 220 in the mounting groove 2116, thereby ensuring the position of the flying pin 220 in the axis direction of rotation.
Wherein, the side of the flying pin 220 close to the third groove wall 2117 is provided with a wear-reducing ring 223, and the wear-reducing ring 223 is sleeved on the periphery of the rotation axis of the flying pin 220. The wear ring 223 has an area smaller than the area of the portion of the fly pin 220 opposite to the third pocket wall 2117, thereby reducing wear between the fly pin 220 and the third pocket wall 2117. The outer end surface of the wear ring 223 and the third groove wall surface 2117 may be smooth surfaces to further reduce wear therebetween.
In some embodiments of the present application, a side of the second mounting portion 211 away from the first mounting portion 212 further has a second rotation stop surface, the first rotation stop surface and the second rotation stop surface are respectively located at two sides of the rotation axis of the flying pin 220, the mounting groove 2116 has a fourth groove wall surface 2118 located between two third groove wall surfaces 2117, the fourth groove wall surface 2118 includes a first surface section 2119 and a second surface section 2120 arranged along a first direction, the second surface section 2120 is perpendicular to the rotation axis of the flying pin 220, the first surface section 2119 is obliquely arranged, an end of the first surface section 2119 away from the second surface section 2120 is closer to the first mounting portion 212, a portion of the second surface section 2120 constitutes the first rotation stop surface, and a portion of the first surface section 2119 constitutes the second rotation stop surface. So set up, help optimizing the structure of flying probe module.
The second face 2120 is concavely provided with a receiving groove 2121, and the first elastic element is received in the receiving groove 2121. Two ends of the first elastic element are respectively connected to the flying pin 220 and the retaining ring on the bottom wall of the accommodating groove 2121. The first elastic member may preferably be a spring.
Referring to fig. 4-7, in some embodiments of the present application, the flying pin module further includes a mount and a pusher 300. The mounting seat is formed with a first mounting cavity 110, the first mounting cavity 110 has a first opening 111, the first opening 111 is located on the outer surface of the mounting seat, and a magnetic member 120 is arranged in the first mounting cavity 110. The flying probe module is disposed at a side of the first opening 111 away from the first mounting cavity 110. The connecting bracket 210 is fixedly connected to the mounting base through the first mounting portion 212, and the flying pin 220 is rotatably disposed on the second mounting portion 211. But linking arm elastic deformation is in order to drive the swing of flying needle 220 to make flying needle 220 have deformation position and reset position, wherein reset position is the normal state position, specifically: flying the needle module when flying needle 220 test operation, flying the needle module and can moving towards the solder joint that awaits measuring on the PCB board and make flying needle 220 and the solder joint butt cooperation on the PCB board, linking bridge 210 can be towards mount pad orientation deformation under the butt effect of solder joint to flying needle 220 so that fly needle 220 by reset position removal to deformation position this moment, when treating flying the needle module and shift up, linking bridge 210 can kick-back and reset in order to drive flying needle 220 and move to reset position. It should be understood that: the reset position herein refers to a reset position when the connecting bracket 210 is in a normal state, and the deformation position is not fixed. The pushing member 300 has a first end and a second end opposite to each other, the first end extends into the first mounting cavity 110 through the first opening 111, the second end is connected to the second mounting portion 211, the first end is provided with a ferromagnetic member, the ferromagnetic member and the magnetic member 120 are arranged opposite to each other at a position where the flying pin 220 is located at the reset position, and the flying pin 220 is driven to the reset position through magnetic attraction cooperation of the magnetic member 120 and the ferromagnetic member.
The flying probe module and flying probe 220 test machine that this embodiment provided, linking bridge 210 can ensure through the magnetism cooperation of inhaling of ferromagnetic part and magnetic part that the flying probe 220 kick-backs to the reset position under normal conditions, linking bridge 210 can be under the circumstances that deformation trouble (deformation appears under not receiving the solder joint effect) the magnetism cooperation of inhaling of ferromagnetic part and magnetic part under with flying probe 220 pulling to the reset position or pulling almost to the reset position, the position offset of flying probe 220 has been reduced to test when the deformation of flying probe frame appears, and then the validity of the test result of the flying probe module is ensured. In addition, the vibration of the flying needle 220 brought by the connecting bracket 210 can be effectively reduced.
When the flying probe module comprises a plurality of flying probe modules, each flying probe module is provided with a corresponding pushing piece 300 and a corresponding magnetic force adjusting component, so that the consistency of the head parts of the flying probes 220 is better, and the validity of the test result of the flying probe module is further ensured.
The pushing member 300 may be a hollow T-shaped rod structure, and includes a first rod section 310 and a second rod section 320 that are vertically disposed, the magnetic member 120 is disposed on the first rod section 310, and a length of the first rod section 310 is greater than a width of the first opening 111, so that the first rod section 310 and an outer edge of the first opening 111 form a limit fit, so as to prevent the first end from being separated from the first mounting cavity 110. The first end of the pusher 300 is a first rod segment 310. The first pole segment 310 and the second pole segment 320 are preferably bolted or welded to each other. The ferromagnetic piece may preferably be a strip iron piece such that the ferromagnetic and magnetic pieces 120 are constant in the magnetically engaged position.
The mounting seat and the pushing member 300 are preferably made of non-ferrous metal, such as copper, aluminum, etc., to reduce interference of the magnetic member 120.
Wherein, the connecting bracket 210 is made of plastic.
In some embodiments of the present application, the flying probe module further comprises a magnetic force adjusting assembly, which comprises an adjusting member 410 and a second elastic member 420. The adjusting member 410 is movably disposed on the first cavity wall 112 to move between a first position and a second position, in the first position, the adjusting member 410 extends into the moving path of the first end and is close to the magnetic member 120, in the second position, the adjusting member 410 exits the moving path of the first end under the pushing of the first end, and the second elastic member 420 abuts against the cavity wall surfaces disposed on the adjusting member 410 and the first cavity wall 112 to provide the adjusting member 410 with an elastic force moving toward the first position. When the first end moves from the reset position to the deformation position, the first end is pushed to cooperate with the adjusting piece 410 located at the first position to push the adjusting piece 410 to the second position, when the first end is separated from the adjusting piece 410, the adjusting piece 410 automatically moves to the first position under the driving of the second elastic piece 420, and the connecting bracket 210 elastically deforms in the process; when the first end moves from the deformed position to the reset position, the first end will push and cooperate with the adjusting element 410 located at the first position to push the adjusting element 410 to the second position, and when the first end passes through the adjusting element 410, the first end reaches the reset position, and meanwhile, the adjusting element 410 will automatically move to the first position under the driving of the second elastic element 420. The adjusting member 410 is connected to the magnetic member 120, wherein when moving from the first position to the second position, the adjusting member 410 drives the magnetic member 120 to move so as to increase the magnetic attraction of the magnetic member 120 to the ferromagnetic member, and when moving from the second position to the first position, the adjusting member 410 drives the magnetic member 120 to move so as to decrease the magnetic attraction of the magnetic member 120 to the ferromagnetic member. So set up, can make the magnetic attraction between first end magnetic part 120 and the ferromagnetic part when adjusting piece 410 be greater than the magnetic attraction between first end magnetic part 120 and the ferromagnetic part when flying needle 220 is located reset position, not only can exert great magnetic attraction so that its better realization when reseing to the linking bridge 210 of deformation, and can also reduce the magnetic attraction and move the resistance that forms towards deformation position to first end, the protection effect to welding point and flying needle 220 has been improved.
The mounting cavity includes a first cavity wall 112 located on one side of the first opening 111, the first cavity wall 112 includes a first cavity wall portion 1121 and a second cavity wall portion 1122 that are perpendicular to each other and connected, the second cavity wall portion 1122 is located between the first cavity wall portion 1121 and the opening, the magnetic component 120 is disposed on the inner side of the second cavity wall portion 1122, and the adjusting component 410 is disposed on the first cavity wall portion 1121. The second elastic member 420 is preferably a spring, the first cavity wall 1121 is fixedly provided with a limiting post, and the spring 420 is sleeved on the limiting post.
In some embodiments of the present application, the magnetic member 120 includes a mounting plate 121 and a permanent magnet 122 disposed on the mounting plate 121. The mounting plate 121 is coupled to the adjusting member 410 so that the magnetic member 120 can be moved synchronously with the adjusting member 410. The first chamber wall 112 is provided with a magnetic shield located on the side of the magnetic member 120 close to the path of movement of the first end, the magnetic shield being provided with a through-going magnetic aperture arranged therethrough. The magnetic shield adjusts the effective communication area between the magnetic member 120 and the ferromagnetic member through the through-magnetic holes, thereby restraining the magnetic attraction force between the magnetic member 120 and the ferromagnetic member and also helping to adjust the magnitude of the magnetic attraction force between the magnetic member 120 and the ferromagnetic member.
Wherein it is preferable that the area through the magnetic through hole is adjustably set to adjust the magnetic attraction force between the magnetic member 120 and the ferromagnetic member.
In some embodiments of the present application, the magnetic shield includes a first magnetic shield panel 123 and a second magnetic shield panel 124 which are arranged in a stacked manner, the first magnetic shield panel 123 is provided with a first magnetic through hole portion 1231 which penetrates therethrough, the second magnetic shield panel 124 is provided with a second magnetic through hole portion 1241 which penetrates therethrough, projection portions of the first magnetic through hole portion 1231 and the second magnetic through hole portion 1241 in the stacking direction coincide, and projection coinciding portions of the first magnetic through hole portion 1231 and the second magnetic through hole portion 1241 constitute the magnetic through holes. The first magnetic shielding plate 123 and the second magnetic shielding plate 124 can move relatively to adjust the area of the projection overlapping part of the first through magnetic hole and the second through magnetic hole, and further adjust the area of the through magnetic hole.
Therein, preferably, the first magnetic shield plate 123 is disposed on the first cavity wall 112, and the second magnetic shield plate 124 is disposed on the magnetic member 120. Each of the first magnetic shield panel 123 and the second magnetic shield panel 124 may be a metal plate of a non-ferromagnetic material, such as a copper plate or an aluminum plate.
In some embodiments of the present application, the adjusting member 410 includes an adjusting portion 411 and a second connecting portion 412 connected to each other, the magnetic member 120 is connected to the second connecting portion 412, both sides of the adjusting portion 411 in the moving direction of the first end are provided with pushing inclined surfaces 4111, and the pushing inclined surfaces 4111 are configured to be in pushing fit with the first end. So configured, the first end can smoothly push the adjusting member 410.
The first end is provided with an ejecting surface which is in ejecting fit with the ejecting inclined surface 4111, and the ejecting surface is arc-shaped, so that the resistance between the first end and the adjusting member 410 is reduced.
The adjusting portion 411 may have a plate-like structure, and the second connecting portion 412 may have a plate-like structure.
When the adjusting member 410 is at the first position, the extending length of the adjusting portion 411 extending into the moving path of the first end is usually within 1mm, so that the movement of the first end is not affected by the adjusting portion 411, and high-frequency operation of the flying probe 220 can be ensured.
In some embodiments of the present application, a second installation cavity is disposed in the first cavity wall 112, the second installation cavity has a second opening, the adjusting portion 411 penetrates through the second opening, the adjusting portion 411 is disposed with a butting ring, and the butting ring is in butting fit with an outer edge of the second opening, so as to prevent the adjusting portion 411 from falling into the first installation cavity 110. Both ends of the second elastic member 420 abut against the adjusting portion 411 and the cavity wall surface of the second installation cavity, respectively.
Wherein, the second installation cavity is L-shaped and includes the first cavity segment 1123 that is located first cavity wall segment 1121 and the second cavity segment 1124 that is located second cavity wall segment 1122, the second opening is located the cavity wall face of first cavity wall segment 1121, the cavity wall face of second cavity wall segment 1122 is equipped with the third opening that communicates with second cavity segment 1124, first magnetic shield board 123 is installed in the third opening.
In some embodiments of the present application, the second end is detachably and fixedly connected to the second mounting portion 211 to facilitate detachment therebetween. The second end and the second mounting portion 211 may be detachably coupled together by a screw, etc.
The application also provides a flying probe 220 testing machine, which comprises the flying probe module.
It will be understood that any orientation or positional relationship indicated above with respect to the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is based on the orientation or positional relationship shown in the drawings and is for convenience in describing and simplifying the invention, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting of the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means three or more unless otherwise specified.
The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A flying probe module, comprising:
the connecting bracket comprises a first mounting part, a second mounting part and at least two connecting arms, the at least two connecting arms are arranged between the first mounting part and the second mounting part at intervals along a first direction, and one side, far away from the first mounting part, of the second mounting part is provided with a first rotation stopping surface;
the flying needle is in a blade shape, is rotatably connected to one side of the second mounting part, which is far away from the first mounting part, and has a rotating axial direction which is vertical to the first direction;
and two ends of the first elastic piece are respectively connected with the flying needle and the second mounting part so as to pull the flying needle to abut against the first rotation stopping surface.
2. The flying needle module of claim 1, wherein the flying needle is provided with a stopping protrusion, the stopping protrusion is located on one side of the rotation axis of the flying needle close to the needle tip portion of the flying needle, the second mounting portion is provided with a stopping groove, the stopping protrusion is inserted into the stopping groove, the stopping groove is provided with a first groove wall surface and a second groove wall surface which are arranged at intervals along the first direction, the second groove wall surface is arranged close to the needle tip portion, the stopping protrusion is matched with the first groove wall surface in a stopping way, and a gap is formed between the stopping protrusion and the second groove wall surface.
3. The flying needle module as claimed in claim 1, wherein a second rotation stopping surface is further provided on a side of the second mounting portion away from the first mounting portion, the first rotation stopping surface and the second rotation stopping surface are respectively located on two sides of the rotation axis of the flying needle, and the rotation angle of the flying needle is limited within a preset angle by the abutting engagement of the first rotation stopping surface and the second rotation stopping surface on the flying needle.
4. The flying needle module of claim 3, wherein the predetermined angle is within 10 °.
5. The flying probe module of claim 1, wherein the second installation part comprises a first surface far away from the first installation part and a second surface connected with the first surface, the second surface is located on one side, close to the needle point part of the flying probe, of the first surface, a mounting groove is concavely arranged on the first surface, the mounting groove is formed in the edge of the first surface and extends to the second surface, the flying probe is rotatably arranged in the mounting groove, the mounting groove is provided with two third groove wall surfaces which are arranged at intervals along the rotating axial direction of the flying probe, and the flying probe is limited to be arranged between the two third groove wall surfaces.
6. The flying pin module of claim 5, wherein a side of the second mounting portion away from the first mounting portion further has a second rotation stop surface, the first rotation stop surface and the second rotation stop surface are respectively located on two sides of a rotation axis of the flying pin, the mounting groove has a fourth groove wall surface located between the two third groove wall surfaces, the fourth groove wall surface includes a first surface section and a second surface section arranged along the first direction, the second surface section is perpendicular to the rotation axis of the flying pin, the first surface section is arranged in an inclined manner, and an end of the first surface section away from the second surface section is closer to the first mounting portion, a part of the second surface section constitutes the first rotation stop surface, and a part of the first surface section constitutes the second rotation stop surface.
7. The flying probe module as claimed in claim 6, wherein the second surface segment is recessed with a receiving groove, and the first resilient member is received in the receiving groove.
8. The flying needle module as claimed in claim 5, wherein a wear-reducing ring is provided on a side of the flying needle close to the third groove wall surface, and the wear-reducing ring is sleeved on the periphery of the rotation axis of the flying needle.
9. The flying needle module of claim 1, wherein the first resilient member is a spring.
10. A flying probe testing machine comprising the flying probe module of any one of claims 1-9.
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| CN202310050135.8A CN115856370B (en) | 2023-02-01 | 2023-02-01 | Flying probe module and flying probe tester |
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| CN202310050135.8A CN115856370B (en) | 2023-02-01 | 2023-02-01 | Flying probe module and flying probe tester |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115856370B (en) | 2023-05-23 |
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Denomination of invention: Flying Needle Module and Flying Needle Testing Machine Granted publication date: 20230523 Pledgee: Industrial and Commercial Bank of China Limited Kunshan Branch Pledgor: Suzhou Zhongxi Precision Motor Co.,Ltd. Registration number: Y2024980000274 |