CN105352469A - BGA tin ball surface circularity detection device - Google Patents
BGA tin ball surface circularity detection device Download PDFInfo
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- CN105352469A CN105352469A CN201510811093.0A CN201510811093A CN105352469A CN 105352469 A CN105352469 A CN 105352469A CN 201510811093 A CN201510811093 A CN 201510811093A CN 105352469 A CN105352469 A CN 105352469A
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Abstract
The invention discloses a BGA tin ball surface circularity detection device. The BGA tin ball surface circularity detection device comprises a bottom board, a vibration device which is mounted on the bottom board and is used for generating a vibration source, a foundation unit which is mounted on the vibration device and comprises a casing, a supporting block, a first hemisphere groove, a first through hole, a first contact sheet unit and a ventilation pipeline, a pressing unit which is arranged on a top end face of the casing and comprises a vacuum absorption board, a pressure block, a second hemisphere groove, a second through hole and a second contact sheet unit, and a material reception unit mounted at a side face opening of the casing, wherein the vibration device, the foundation unit, the pressing unit and the material reception unit are respectively connected with a control unit through a circuit, and the groove body is communicated with the material reception unit. Through the BGA tin ball surface circularity detection device, detection efficiency can be effectively improved, quality of tin balls can be guaranteed, the structure is simple, and use convenience is realized.
Description
Technical field:
The present invention relates to pick-up unit technical field, relating to a kind of pick-up unit for detecting BGA tin ball surface roundness in particular.
Background technology:
BGA tin ball is the pith of BGA welding, and automatic BGA tin ball feed mainly contains the cutting remelting method of forming and spray up moulding two kinds, and the former is the unit solder stick of different-diameter being cut into uniform quality, then carries out fusing balling-up in glycerine; Solder is placed in specific container (crucible) to melt by the latter, then inflates in crucible, and the solder after increase pressure makes fusing sprays from the specific aperture of crucible bottom, re-uses the higher-order of oscillation and makes it balling-up.No matter be adopt the cutting remelting method of forming or spray up moulding all to need the tin ball to being formed to carry out surface roundness detection, to ensure the quality of tin ball.The method of existing detection tin ball is normally undertaken judging by naked eyes, and testing process wastes time and energy, and detection efficiency is low, and the difficult quality of tin ball is guaranteed.
Summary of the invention:
Object of the present invention is exactly the deficiency for prior art, and provides a kind of pick-up unit of BGA tin ball surface roundness, and it effectively can improve detection efficiency, ensures the quality of tin ball, and structure is simple, easy to use.
Technology solution of the present invention is as follows: a kind of pick-up unit of BGA tin ball surface roundness, comprising: base plate, be arranged on the vibrating device for generation of vibration source on described base plate, be arranged on the base unit on described vibrating device, it comprises the casing on the top end face being arranged on described vibrating device, be arranged on the some back-up blocks in described casing, be molded over the some first hemisphere grooves on the top end face of described back-up block, be molded over the first through hole of described first hemisphere trench bottom, be arranged on the first contact chip unit on described first hemisphere groove inwall, be arranged in described back-up block for being communicated with the vent line of described first through hole and external air source, described casing there is an accommodating cavity and top end face and a side opening-like, described back-up block is vertical and be equally spacedly arranged in described accommodating cavity, cell body is formed between described back-up block, the bottom land of described cell body dips down setting, be arranged on the pressing unit on the top end face of described casing, it comprises the vacuum adsorption plate matched with the open top of described casing, on the bottom face being fixedly installed on described vacuum adsorption plate and with described back-up block briquetting one to one, be molded over the some second hemisphere grooves on the bottom face of described briquetting, be molded over second through hole at described second hemisphere groove top, be arranged on the second contact chip unit on described second hemisphere groove inwall, described second hemisphere groove and described first hemisphere groove enclose the diameter of Spherical Volume of formation one for accommodating tin ball jointly, described second through hole is connected with described vacuum adsorption plate by connecting pipe, the top end face of described vacuum adsorption plate is provided with the driver element driving the motion of described vacuum adsorption plate, described driver element comprises driving cylinder and line slide rail, the piston rod of described driving cylinder is connected with the top end face of described vacuum adsorption plate, cylinder body is arranged on described line slide rail, be arranged on the splicing unit on the lateral opening of described casing, wherein, described vibrating device, described base unit, described pressing unit are all connected with control module by circuit with described splicing unit, described cell body is connected with described splicing unit.
Preferred as technique scheme, described first contact chip unit is be symmetricly set on a pair first contact chips in described first hemisphere groove; Described second contact chip unit is be symmetricly set on a pair second contact chips in described second hemisphere groove; Wherein, the symmetrical plane of described first contact chip unit and the symmetrical plane of described second contact chip unit coincide, and the symmetrical plane of described first contact chip unit and the symmetrical plane of described second contact chip unit are the plane through the centre of sphere; Described first contact chip is equal with the size and shape of described second contact chip.
Preferred as technique scheme, the radius value that described second hemisphere groove and described first hemisphere groove enclose the diameter of Spherical Volume of formation is the radius value of tin ball and the one-tenth-value thickness 1/10 sum of described first contact chip or described second contact chip.
Preferred as technique scheme, the edge of the top end face of described casing forms multiple pilot hole, the bottom face of described vacuum adsorption plate forms the reference column corresponding with described pilot hole.
Preferred as technique scheme, described splicing unit comprises the splicing groove on the lateral opening being arranged on described casing, be hinged on the link slot of the bottom of described splicing groove, be arranged on the splicing cylinder on base plate and pulp-collecting box, wherein, the cylinder body of described splicing cylinder is fixedly installed on described base plate, piston rod is connected with the bottom face of described link slot, described pulp-collecting box is arranged on immediately below the discharging opening of described link slot, described splicing groove is arranged on the bottom of the lateral opening of described casing, the central authorities of the bottom of described splicing groove form coupling shaft, described link slot is articulated with on described splicing groove by described coupling shaft, the region that described splicing groove is relative with the lateral opening of described casing offers a tin ball passage, the bottom face of described tin ball passage is a downward-sloping tapered plane.
Preferred as technique scheme, the end face that described splicing groove matches with the lateral opening of described casing forms fixture block, and the lateral opening end of described casing forms the draw-in groove matched with described fixture block.
Preferred as technique scheme, the angle of inclination of the bottom face of described tin ball passage is 15 °.
Preferred as technique scheme, described vent line comprises a common air chamber and some ventilations are in charge of, and described common air chamber is in charge of with described ventilation and is connected.
Preferred as technique scheme, the longitudinal cross-section of described cell body is in " U " type, and the bottom land angle of inclination of described cell body is 8 °.
Beneficial effect of the present invention is:
1) base unit and pressing unit can realize the automatic detection of tin ball, effectively can improve detection efficiency, and ensure tin ball quality, structure is simple, easy to use;
2) vibrating device can provide vibration source to casing, thus the tin ball ordered about in the first hemisphere groove is fallen in cell body;
3) be provided with the vent line for being communicated with the first through hole and external air source in back-up block, therefore, the gas of external air source can be sprayed to the tin ball being positioned at the first hemisphere groove by described first through hole, can effectively assist tin ball to fall in cell body.
Accompanying drawing illustrates:
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is perspective view of the present invention;
Fig. 2 is decomposition texture schematic diagram of the present invention;
Fig. 3 is the structural representation of base unit of the present invention;
Fig. 4 is the cross-sectional view of Fig. 3;
Fig. 5 is the structural representation of pressing unit of the present invention;
Fig. 6 is the cross-sectional view of Fig. 5;
Fig. 7 is the perspective view of splicing groove of the present invention;
Fig. 8 is the structural representation in the side-looking direction of splicing groove of the present invention;
Fig. 9 is one of operating diagram of splicing unit of the present invention;
Figure 10 is the operating diagram two of splicing unit of the present invention.
In figure, 10, base plate; 20, vibrating device; 30, base unit; 31, casing; 311, pilot hole; 312, draw-in groove; 32, back-up block; 33, the first hemisphere groove; 34, the first through hole; 35, the first contact chip unit; 36, vent line; 361, common air chamber; 362, ventilation is in charge of; 37, cell body; 40, pressing unit; 41, vacuum adsorption plate; 411, reference column; 42, briquetting; 43, the second hemisphere groove; 44, the second through hole; 45, the second contact chip unit; 46, connecting pipe; 50, splicing unit; 51, splicing groove; 511, fixture block; 512, coupling shaft; 513, tin ball passage; 52, splicing cylinder; 53, link slot; 54, pulp-collecting box.
Embodiment:
Embodiment: by particular specific embodiment, embodiments of the present invention are described below, those skilled in the art can understand other advantages of the present invention and effect easily by content disclosed in the present specification, " top " mentioned in the present embodiment, " below ", " top ", " bottom " etc. describe and define according to common meaning, such as, the direction definition of reference to gravitational, the direction of gravity is below, contrary direction is top, similarly up be top or top, in below is bottom or bottom, be also only to be convenient to describe and understand, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, also when being considered as the enforceable category of the present invention.
As shown in Figure 1, a kind of pick-up unit of BGA tin ball surface roundness, comprising: base plate 10, be arranged on the vibrating device 20 for generation of vibration source on described base plate 10, be arranged on the base unit 30 on described vibrating device 20, see shown in Fig. 2 to Fig. 4, described base unit 30 comprises the casing 31 on the top end face being arranged on described vibrating device 20, be arranged on the some back-up blocks 32 in described casing 31, be molded over the some first hemisphere grooves 33 on the top end face of described back-up block 32, be molded over the first through hole 34 bottom described first hemisphere groove 33, be arranged on the first contact chip unit 35 on described first hemisphere groove 33 inwall, be arranged in described back-up block 32 for being communicated with the vent line 36 of described first through hole 34 and external air source, described vent line 36 comprises a common air chamber 361 and some ventilations are in charge of 362, described common air chamber 361 is in charge of 362 with described ventilation and is connected, described casing 31 there is an accommodating cavity and top end face and a side opening-like, described back-up block 32 is vertical and be equally spacedly arranged in described accommodating cavity, cell body 37 is formed between described back-up block 32, the bottom land of described cell body 37 dips down setting, the longitudinal cross-section of described cell body 37 is in " U " type, the bottom land angle of inclination of described cell body 37 is 8 °, the rolling of tin ball is convenient in the design of " U " type, the inclined design of 8 ° can ensure that tin ball slips in described splicing unit 50 smoothly, tin ball is avoided to be blocked in described cell body 37, be arranged on the pressing unit 40 on the top end face of described casing 31, see shown in Fig. 5 and Fig. 6, described pressing unit 40 comprises the vacuum adsorption plate 41 matched with the open top of described casing 31, on the bottom face being fixedly installed on described vacuum adsorption plate 41 and with described back-up block 32 briquetting 42 one to one, be molded over the some second hemisphere grooves 43 on the bottom face of described briquetting 42, be molded over second through hole 44 at described second hemisphere groove 43 top, be arranged on the second contact chip unit 45 on described second hemisphere groove 43 inwall, described second hemisphere groove 43 encloses the diameter of Spherical Volume of formation one for accommodating tin ball jointly with described first hemisphere groove 33, described second through hole 44 is connected with described vacuum adsorption plate 41 by connecting pipe 46, the top end face of described vacuum adsorption plate 41 is provided with the driver element (not shown) driving described vacuum adsorption plate 41 to move, described driver element comprises driving cylinder (not shown) and line slide rail (not shown), the piston rod of described driving cylinder is connected with the top end face of described vacuum adsorption plate 41, cylinder body is arranged on described line slide rail, be arranged on the splicing unit 50 on the lateral opening of described casing 31, wherein, described vibrating device 20, described base unit 30, described pressing unit 40 are all connected with control module (not shown) by circuit with described splicing unit 50, and described first contact chip unit 35 is connected with described control module by circuit with described second contact chip unit 45, described cell body 37 is connected with described splicing unit 50.
See shown in Fig. 3 and Fig. 5, the first contact chip unit 35 described in the present embodiment is for being symmetricly set on a pair first contact chips in described first hemisphere groove 33; Described second contact chip unit 45 is for being symmetricly set on a pair second contact chips in described second hemisphere groove 43; Wherein, the symmetrical plane of described first contact chip unit 35 and the symmetrical plane of described second contact chip unit 45 coincide, and the symmetrical plane of described first contact chip unit 35 and the symmetrical plane of described second contact chip unit 45 are the plane through the centre of sphere; Described first contact chip is equal with the size and shape of described second contact chip.The purpose arranged that overlapped with the symmetrical plane of described second contact chip unit 45 by the symmetrical plane of described first contact chip unit 35 is to make described first contact chip unit 35 and described second contact chip unit 45 jointly can enclose formation whole circle, guarantees the accuracy detected.In the present embodiment, the radius value that described second hemisphere groove 43 and described first hemisphere groove 33 enclose the diameter of Spherical Volume of formation is the radius value of tin ball and the one-tenth-value thickness 1/10 sum of described first contact chip or described second contact chip.
See shown in Fig. 3 and Fig. 5, the edge of the top end face of described casing 31 forms multiple pilot hole 311, the bottom face of described vacuum adsorption plate 41 forms the reference column 411 corresponding with described pilot hole 311, and described pilot hole 311 is can be pressure bonded to accurately on described base unit 30 for the ease of described pressing unit 40 with the setting of described reference column 411.
See shown in Fig. 1 and Fig. 2, described splicing unit 50 comprises splicing groove 51 on the lateral opening being arranged on described casing 31, be hinged on the link slot 53 of the bottom of described splicing groove 51, be arranged on splicing cylinder 52 on base plate 10 and pulp-collecting box 54, wherein, the cylinder body of described splicing cylinder 52 is fixedly installed on described base plate 10, piston rod is connected with the bottom face of described link slot 53, described pulp-collecting box 54 is arranged on immediately below the discharging opening of described link slot 53, and described splicing groove 51 is arranged on the bottom of the lateral opening of described casing 31.See shown in Fig. 7 and Fig. 8, the central authorities of the bottom of described splicing groove 51 form coupling shaft 512, described link slot 53 is articulated with on described splicing groove 51 by described coupling shaft 512, the region that described splicing groove 51 is relative with the lateral opening of described casing 31 offers a tin ball passage 513, the bottom face of described tin ball passage 513 is a downward-sloping tapered plane, and angle of inclination is 15 °; The end face that described splicing groove 51 matches with the lateral opening of described casing 31 forms fixture block 511, and the lateral opening end of described casing 31 forms the draw-in groove 312 matched with described fixture block 511.
See shown in Fig. 9 and Figure 10, tin ball can be regulated to fall into the speed of described pulp-collecting box 54 by described splicing cylinder 52 and described link slot 53, when described pulp-collecting box 54 has more spatial accommodation, by the piston rod of the described splicing cylinder 52 that rises, described link slot 53 is tilted to described pulp-collecting box 54, thus make tin ball slip in described pulp-collecting box 54 fast, when described pulp-collecting box 54 is close to full load, when needing to change described pulp-collecting box 54, by the piston rod of the described splicing cylinder 52 that declines to slow down the speed that described pulp-collecting box 54 fallen into by tin ball, use very convenient.Fig. 9 accelerates structural representation when tin ball rolls, and Figure 10 slows down structural representation when tin ball rolls.
Principle of work: utilize the line slide rail at described vacuum adsorption plate 41 top that described vacuum adsorption plate 41 is slid onto Xi Qiuqu to be detected, described driving cylinder presses down described vacuum adsorption plate 41, described vacuum adsorption plate 41 is made to press close to tin ball, open the adsorption function of described vacuum adsorption plate 41, because described second hemisphere groove 43 is by the second through hole 44 in the present invention, connecting pipe 46 is connected with described vacuum adsorption plate 41, therefore, described second hemisphere groove 43 can adsorb tin ball to be detected, on described briquetting 42 after the full tin ball of absorption, by described line slide rail, described vacuum adsorption plate 41 is slid onto directly over described casing 31 again, the pilot hole on described casing 31 and the reference column 411 on described vacuum adsorption plate is utilized to realize the location of described vacuum adsorption plate 41 and described casing 31, then described vacuum adsorption plate 41 is pressed down, the top end face of described back-up block 32 and the bottom face of described briquetting 42 are offseted, now, described first hemisphere groove 33 encloses formation one diameter of Spherical Volume jointly with described second hemisphere groove 43, tin ball is covered by described diameter of Spherical Volume, after closing the adsorption function of described vacuum adsorption plate 41, surface roundness detection is carried out to tin ball, the radius value enclosing the diameter of Spherical Volume of formation due to described second hemisphere groove 43 and described first hemisphere groove 33 is the radius value of tin ball and the one-tenth-value thickness 1/10 sum of described first contact chip or described second contact chip, if the surface roundness of tin ball meets the requirements, then tin ball surface and fit tightly between described first contact chip and described second contact chip, if the surface roundness of tin ball is undesirable, then tin ball surface and small gap can be left between described first contact chip and described second contact chip, the situation of detection can be fed back to described control module by described first contact chip and described second contact chip, described control module records the position of defective tin ball, after detection completes, described driving cylinder moves described vacuum adsorption plate 41, tin ball is stayed in described first hemisphere groove 33 under the effect of self gravitation, the information that workman provides according to described control module, the tin ball not conforming to the requirement of symbol surface roundness in described first hemisphere groove 33 is chosen and picks, do not meet surface roundness require tin ball pick out after, open described vibrating device 20, again the gas of external air source is passed into described vent line 36 simultaneously, the gas of external air source is in charge of 362 after-blow to described first hemisphere groove 33 by described common air chamber 361 and described ventilation, qualified tin ball in described first hemisphere groove 33 is subject to the effect of vibration and bottom gas simultaneously, therefore, tin ball is easy to depart from described first hemisphere groove 33 and fall in described cell body 37, because the bottom land of described cell body 37 is downward-sloping, and described cell body 37 is communicated with described splicing unit 50, tin ball slips into described splicing unit 50 along described cell body 37, be slipped in described pulp-collecting box 54 under the effect of described splicing groove 51 and described link slot 53.
Described embodiment in order to illustrative the present invention, but not for limiting the present invention.Any those skilled in the art all without prejudice under spirit of the present invention and category, can modify to described embodiment, therefore the scope of the present invention, should listed by claim of the present invention.
Claims (9)
1. a pick-up unit for BGA tin ball surface roundness, is characterized in that, comprising:
Base plate (10);
Be arranged on the vibrating device (20) for generation of vibration source on described base plate (10);
Be arranged on the base unit (30) on described vibrating device (20), it comprises the casing (31) on the top end face being arranged on described vibrating device (20), be arranged on the some back-up blocks (32) in described casing (31), be molded over the some first hemisphere grooves (33) on the top end face of described back-up block (32), be molded over first through hole (34) of described first hemisphere groove (33) bottom, be arranged on the first contact chip unit (35) on described first hemisphere groove (33) inwall, be arranged in described back-up block (32) for being communicated with the vent line (36) of described first through hole (34) and external air source, described casing (31) there is an accommodating cavity and top end face and a side opening-like, described back-up block (32) is vertical and be equally spacedly arranged in described accommodating cavity, cell body (37) is formed between described back-up block (32), the bottom land of described cell body (37) dips down setting,
Be arranged on the pressing unit (40) on the top end face of described casing (31), it comprises the vacuum adsorption plate (41) matched with the open top of described casing (31), on the bottom face being fixedly installed on described vacuum adsorption plate (41) and with described back-up block (32) briquetting (42) one to one, be molded over the some second hemisphere grooves (43) on the bottom face of described briquetting (42), be molded over second through hole (44) at described second hemisphere groove (43) top, be arranged on the second contact chip unit (45) on described second hemisphere groove (43) inwall, described second hemisphere groove (43) and described first hemisphere groove (33) enclose the diameter of Spherical Volume of formation one for accommodating tin ball jointly, described second through hole (44) is connected with described vacuum adsorption plate (41) by connecting pipe (46), the top end face of described vacuum adsorption plate (41) is provided with the driver element driving described vacuum adsorption plate (41) to move, described driver element comprises driving cylinder and line slide rail, the piston rod of described driving cylinder is connected with the top end face of described vacuum adsorption plate (41), cylinder body is arranged on described line slide rail,
Be arranged on the splicing unit (50) on the lateral opening of described casing (31);
Wherein, described vibrating device (20), described base unit (30), described pressing unit (40) are all connected with control module by circuit with described splicing unit (50); Described cell body (37) is connected with described splicing unit (50).
2. the pick-up unit of BGA tin ball surface roundness according to claim 1, is characterized in that: described first contact chip unit (35) is for being symmetricly set on a pair first contact chips in described first hemisphere groove (33); Described second contact chip unit (45) is for being symmetricly set on a pair second contact chips in described second hemisphere groove (43); Wherein, the symmetrical plane of described first contact chip unit (35) and the symmetrical plane of described second contact chip unit (45) coincide, and the symmetrical plane of described first contact chip unit (35) and the symmetrical plane of described second contact chip unit (45) are the plane through the centre of sphere; Described first contact chip is equal with the size and shape of described second contact chip.
3. the pick-up unit of BGA tin ball surface roundness according to claim 2, is characterized in that: the radius value that described second hemisphere groove (43) and described first hemisphere groove (33) enclose the diameter of Spherical Volume of formation is the radius value of tin ball and the one-tenth-value thickness 1/10 sum of described first contact chip or described second contact chip.
4. the pick-up unit of BGA tin ball surface roundness according to claim 1, it is characterized in that: the edge of the top end face of described casing (31) forms multiple pilot hole (311), the bottom face of described vacuum adsorption plate (41) forms the reference column (411) corresponding with described pilot hole (311).
5. the pick-up unit of BGA tin ball surface roundness according to claim 1, it is characterized in that: described splicing unit (50) comprises the splicing groove (51) on the lateral opening being arranged on described casing (31), be hinged on the link slot (53) of the bottom of described splicing groove (51), be arranged on the splicing cylinder (52) on base plate (10) and pulp-collecting box (54), wherein, the cylinder body of described splicing cylinder (52) is fixedly installed on described base plate (10), piston rod is connected with the bottom face of described link slot (53), described pulp-collecting box (54) is arranged on immediately below the discharging opening of described link slot (53), described splicing groove (51) is arranged on the bottom of the lateral opening of described casing (31), the central authorities of the bottom of described splicing groove (51) form coupling shaft (512), described link slot (53) is articulated with on described splicing groove (51) by described coupling shaft (512), described splicing groove (51) region relative with the lateral opening of described casing (31) offers a tin ball passage (513), the bottom face of described tin ball passage (513) is a downward-sloping tapered plane.
6. the pick-up unit of BGA tin ball surface roundness according to claim 5, it is characterized in that: the end face that described splicing groove (51) is matched with the lateral opening of described casing (31) forms fixture block (511), the lateral opening end of described casing (31) forms the draw-in groove (312) matched with described fixture block (511).
7. the pick-up unit of BGA tin ball surface roundness according to claim 5, is characterized in that: the angle of inclination of the bottom face of described tin ball passage (513) is 15 °.
8. the pick-up unit of BGA tin ball surface roundness according to claim 1, it is characterized in that: described vent line (36) comprises a common air chamber (361) and some ventilations are in charge of (362), described common air chamber (361) is in charge of (362) and is connected with described ventilation.
9. the pick-up unit of BGA tin ball surface roundness according to claim 1, is characterized in that: the longitudinal cross-section of described cell body (37) is in " U " type, and the bottom land angle of inclination of described cell body (37) is 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811093.0A CN105352469B (en) | 2015-11-22 | 2015-11-22 | A kind of detection means of BGA tin ball surface circularity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811093.0A CN105352469B (en) | 2015-11-22 | 2015-11-22 | A kind of detection means of BGA tin ball surface circularity |
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| CN105352469A true CN105352469A (en) | 2016-02-24 |
| CN105352469B CN105352469B (en) | 2017-10-31 |
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| CN105627972A (en) * | 2016-03-08 | 2016-06-01 | 浙江乔兴建设集团湖州智能科技有限公司 | BGA solder ball surface roundness detection mechanism |
| CN105689269A (en) * | 2016-03-03 | 2016-06-22 | 浙江乔兴建设集团湖州智能科技有限公司 | Screening mechanism for BGA solder balls |
| CN110274633A (en) * | 2019-07-18 | 2019-09-24 | 佛山科学技术学院 | A kind of detection device of workpiece ball |
| CN110369342A (en) * | 2019-07-27 | 2019-10-25 | 湖南大湖生物技术有限公司 | A kind of pearl type screening technique of volume production pearl culture |
| CN111570314A (en) * | 2020-05-25 | 2020-08-25 | 张明杰 | Connecting shaft detection system and detection method thereof |
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| CN105627972A (en) * | 2016-03-08 | 2016-06-01 | 浙江乔兴建设集团湖州智能科技有限公司 | BGA solder ball surface roundness detection mechanism |
| CN110274633A (en) * | 2019-07-18 | 2019-09-24 | 佛山科学技术学院 | A kind of detection device of workpiece ball |
| CN110369342A (en) * | 2019-07-27 | 2019-10-25 | 湖南大湖生物技术有限公司 | A kind of pearl type screening technique of volume production pearl culture |
| CN110369342B (en) * | 2019-07-27 | 2021-05-28 | 湖南大湖生物技术有限公司 | Pearl type screening method for mass production pearl culture |
| CN111570314A (en) * | 2020-05-25 | 2020-08-25 | 张明杰 | Connecting shaft detection system and detection method thereof |
| CN111570314B (en) * | 2020-05-25 | 2022-01-07 | 浙江迅达工业科技有限公司 | Connecting shaft detection system and detection method thereof |
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