CN109570681B - Laser tin ball welding device - Google Patents
Laser tin ball welding device Download PDFInfo
- Publication number
- CN109570681B CN109570681B CN201910094968.8A CN201910094968A CN109570681B CN 109570681 B CN109570681 B CN 109570681B CN 201910094968 A CN201910094968 A CN 201910094968A CN 109570681 B CN109570681 B CN 109570681B
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- hole
- air
- flange plate
- holes
- air blowing
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- 238000003466 welding Methods 0.000 title claims abstract description 32
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910000679 solder Inorganic materials 0.000 claims abstract description 57
- 238000007664 blowing Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 17
- 239000000155 melt Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 230000008018 melting Effects 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/0623—Solder feeding devices for shaped solder piece feeding, e.g. preforms, bumps, balls, pellets, droplets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
- B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
Abstract
The invention provides a laser tin ball welding device, which comprises: the conveying mechanism comprises an upper flange plate, a lower flange plate and a rotating plate which are coaxial, and a driving mechanism for driving the rotating plate to rotate around the central axis of the rotating plate; the bottom of the storage cylinder is provided with a feed port which is communicated with the feed hole; the air outlet of the air spraying device continuously sprays air outwards, and the first air channel is communicated with the air outlet of the air spraying device and the first air blowing hole; and the melting mechanism comprises a welding channel communicated with the discharging hole and a laser emitter aligned with the welding channel. The air outlet of the air injection mechanism of the laser solder ball welding device continuously injects air outwards and is connected to the first air blowing hole through the first air passage, so that solder balls in the conveying hole rotating below the first air blowing hole are blown off, and the solder balls are discharged into the welding passage through the discharging Kong Gunla, so that the whole working process is simple in structure and difficult to clamp materials.
Description
Technical Field
The invention relates to the field of welding equipment, in particular to a laser tin ball welding device.
Background
In the existing laser solder ball welding device, the conventional laser solder ball welding device generally comprises a storage cylinder for storing solder balls, a conveying mechanism for conveying the solder balls in the storage cylinder into a welding channel and a laser transmitter, and the conventional conveying mechanism has the problems of complex structure and easiness in material clamping.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problems of complex structure and easy material clamping of a conveying mechanism of the traditional laser tin ball welding device. The present invention provides a laser solder ball bonding apparatus to solve the above-mentioned problems.
The technical scheme adopted for solving the technical problems is as follows: a laser solder ball bonding apparatus comprising:
the conveying mechanism comprises an upper flange plate, a lower flange plate, a rotating plate and a driving mechanism, wherein the upper flange plate, the lower flange plate and the rotating plate are coaxial, the driving mechanism is used for driving the rotating plate to rotate around the central axis of the rotating plate, and the upper flange plate and the lower flange plate are respectively arranged on the upper side and the lower side of the rotating plate;
the rotary plate is provided with a plurality of vertically-through conveying holes which are distributed along a first circumferential line and can only accommodate a single tin ball, the circle center of the first circumferential line is positioned on the axis of the rotary plate, the upper flange plate is provided with vertically-through feeding holes, the distance between the bottom of each feeding hole and the rotary plate is smaller than the diameter of the tin ball, the lower flange plate is provided with vertically-through discharging holes, and the feeding holes and the discharging holes are opposite to the first circumferential line;
the upper flange plate is provided with a first air blowing hole which is communicated up and down, and the first air blowing hole is arranged opposite to the discharging hole;
the bottom of the storage cylinder is provided with a feed port which is communicated with the feed hole;
the air injection mechanism comprises an air injection device and a first air channel, an air outlet of the air injection device is continuously and outwardly injected, and the first air channel is communicated with the air outlet of the air injection device and the first air blowing hole;
and the melting mechanism is provided with a welding channel communicated with the discharging hole.
Preferably, the upper flange plate is further provided with a second air blowing hole which penetrates up and down, the second air blowing hole is opposite to the first circumferential line, and the feeding hole and the second air blowing hole are respectively arranged at two sides of the first air blowing hole; the lower flange plate is provided with a blanking hole which is vertically communicated, and the blanking hole is opposite to the second air blowing hole; the air injection mechanism further comprises a second air passage, and the second air passage is communicated with an air outlet of the air injection device and the second air blowing hole.
Preferably, the rotating disc is provided with detection holes which are vertically communicated with each other and distributed along a second circumferential line, and the second circumferential line and the first circumferential line are concentric circles; the detection holes are in one-to-one correspondence with the transmission holes, and the circle centers of the corresponding detection holes, the transmission holes and the first circumferential line are positioned on the same straight line; the conveying holes and the detection holes are uniformly distributed on the circumferential line where the conveying holes and the detection holes are located;
the laser tin ball welding device further comprises an indexing detector, wherein the indexing detector is an opposite-type photoelectric sensor, the opposite-type photoelectric sensor is arranged at a position corresponding to the second circumference, and a transmitting end and a receiving end of the opposite-type photoelectric sensor are oppositely arranged and are respectively arranged above the upper flange plate and below the lower flange plate;
a first through hole which is vertically communicated is formed in the position, corresponding to the correlation type photoelectric sensor, of the upper flange plate, and a second through hole which is vertically communicated is formed in the position, corresponding to the correlation type photoelectric sensor, of the lower flange plate;
on the first circumference, the central angle of the circular arc clamped between every two adjacent transmission holes is A degrees; and an included angle formed between the right opposite positions of the first through hole and the first air blowing hole on the rotating disc and the connecting line of the circle center of the first circumference is an integral multiple of A degrees.
Preferably, on the first circumference, a central angle of a circular arc between the positions opposite to the second air blowing hole and the first air blowing hole is an integer multiple of a degrees.
Preferably, the bottom of the upper flange plate is further provided with an arc-shaped cavity in an upward concave manner, the radian of the arc-shaped cavity is matched with that of the first circumferential line and is located above the first circumferential line, the distance between the bottom opening of the arc-shaped cavity and the rotating disc is smaller than the diameter of the tin ball, one end of the arc-shaped cavity is communicated with the feeding hole, and the other end of the arc-shaped cavity is directed at the first air blowing hole.
Preferably, the top surface of the lower flange plate is further provided with an arc-shaped boss in an upward protruding mode, the radian of the arc-shaped boss is matched with that of the first circumferential line and is located below the first circumferential line, the distance between the top surface of the arc-shaped boss and the top surface of the rotating plate is larger than the diameter of the solder ball, and the distance between the top surface of the arc-shaped boss and the bottom surface of the rotating plate is smaller than the diameter of the solder ball; one end of the circular arc-shaped boss is positioned at a position where the feeding hole is opposite to the lower flange plate, the other end of the circular arc-shaped boss extends to the discharging hole, and the discharging hole penetrates through the circular arc-shaped boss upwards.
Preferably, the driving mechanism comprises a motor, a transmission shaft and a clamping plate, and the clamping plate is circular; the two clamping plates are respectively arranged on the upper side and the lower side of the rotating disc and clamp the rotating disc, the clamping plates are coaxial with the rotating disc, and the axial positions of the clamping plates and the rotating disc are provided with assembly holes; the transmission shaft is inserted into the assembly hole to be fixed, and the output shaft of the motor is coaxially fixed with the transmission shaft.
The invention has the beneficial effects that the air outlet of the air injection mechanism of the laser solder ball welding device continuously injects air outwards and is connected to the first air blowing hole through the first air passage, so that solder balls rotating into the conveying hole below the first air blowing hole are blown off, and the solder balls are discharged into the welding passage through the discharging Kong Gunla, so that the whole working process has a simple structure and is not easy to block materials.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a laser solder ball welding apparatus according to a preferred embodiment of the present invention.
Fig. 2 is a schematic partial structure of a laser solder ball bonding apparatus according to a preferred embodiment of the present invention.
Fig. 3 is a schematic structural view of a conveying mechanism of a laser solder ball welding apparatus according to a preferred embodiment of the present invention.
Fig. 4 is a schematic partial structure of a laser solder ball bonding apparatus according to a preferred embodiment of the present invention.
Fig. 5 is a schematic partial structure of a laser solder ball bonding apparatus according to a preferred embodiment of the present invention.
Fig. 6 is a schematic structural view of an upper flange of a preferred embodiment of a laser solder ball bonding apparatus according to the present invention.
Fig. 7 is a cross-sectional view of a frit mechanism of a preferred embodiment of a laser solder ball bonding apparatus according to the present invention.
Fig. 8 is a schematic partial structure of a laser solder ball bonding apparatus according to a preferred embodiment of the present invention.
In the figure, 1, an upper flange plate, 101, a feeding hole, 102, a first air blowing hole, 103, a second air blowing hole, 104, a first through hole, 105, an arc-shaped cavity, 106, a first groove, 2, a rotating disc, 201, a conveying hole, 202, a detection hole, 3, a lower flange plate, 301, a discharging hole, 302, a blanking hole, 303, a second through hole, 304, an arc-shaped boss, 4, a storage cylinder, 5, a gas spraying device, 6, a melting mechanism, 601, a welding channel, 602, a second pipeline, 7, an opposite-emission type photoelectric sensor, 701, an emitting end, 702, a receiving end, 801, an upper shell, 802, a lower shell, 901, a transmission shaft, 902 and a clamping plate.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1 to 8, the present invention provides a first embodiment of a laser solder ball welding apparatus, which includes:
the conveying mechanism comprises an upper flange plate 1, a lower flange plate 3, a rotating plate 2 and a driving mechanism for driving the rotating plate 2 to rotate around the central axis of the rotating plate, wherein the upper flange plate 1 and the lower flange plate 3 are respectively arranged on the upper side and the lower side of the rotating plate 2.
The rotating disc 2 is provided with a plurality of vertically through conveying holes 201 which are distributed along a first circumferential line and can only accommodate single tin balls, and the circle center of the first circumferential line is positioned on the axis of the rotating disc 2. The upper flange plate 1 is provided with a feeding hole 101 which is vertically communicated, the distance between the bottom of the feeding hole 101 and the rotating plate 2 is smaller than the diameter of a solder ball, the lower flange plate 3 is provided with a discharging hole 301 which is vertically communicated, and the feeding hole 101 and the discharging hole 301 are opposite to a first circumference.
The upper flange plate 1 is provided with a first air blowing hole 102 which is vertically communicated, and the first air blowing hole 102 is arranged opposite to the discharging hole 301.
The storage cylinder 4, the bottom of storage cylinder 4 is equipped with the feed inlet, feed inlet and feed port 101 intercommunication.
The air injection mechanism comprises a gas injection device 5 and a first air passage, the air outlet of the gas injection device 5 is continuously and outwardly injected, and the first air passage is communicated with the air outlet of the gas injection device 5 and the first air blowing hole 102. In the present embodiment, the gas ejection apparatus 5 is an air pump.
A melt mechanism 6. The melt mechanism 6 has a welding channel 601 in communication with the discharge aperture 301. The laser emitters are aligned with the welding channel 601.
An upper housing 801 and a lower housing 802, a cavity is formed between the upper housing 801 and the lower housing 802, and a transfer mechanism is provided in the cavity. The feed inlet of storage section of thick bamboo 4 is fixed with the top surface of last casing 801, and first pipeline has been seted up to last casing 801, and the one end of first pipeline pierces through the top surface of last casing 801 and is located the below of feed inlet, and the other end of first pipeline pierces through the bottom surface of last casing 801 and is located the top of feed inlet. The feed port is communicated with the feed hole 101 through a first pipeline. The solder balls can roll from the feed port through the first conduit into the feed hole 101.
The melting mechanism 6 is fixed at the bottom of the lower housing 802, the melting mechanism 6 is further provided with a second channel 602, one end of the second channel 602 penetrates through the sidewall of the welding channel 601 to communicate with the welding channel 601, and the other end of the second channel 602 is connected to the bottom surface of the lower housing 802. The lower housing 802 is provided with a third pipe, one end of which penetrates through the top surface of the lower housing 802 and is located below the discharge hole 301, and the other end penetrates through the bottom surface of the lower housing 802 to be communicated with the second pipe 602. The welding channel 601 is communicated with the discharge hole 301 through a second pipeline 602 and a third pipeline. The solder balls can roll from the tap 301 through the third conduit and then through the second conduit 602 into the soldering channel 601.
The top surface of the upper flange plate 1 is recessed downwards to form a first groove 106, the upper shell 801 is provided with a fourth pipeline, one end of the fourth pipeline penetrates through the top surface of the upper shell 801 and is communicated with an air outlet of the air pump, the other end of the fourth pipeline penetrates through the bottom surface of the upper shell 801 and points to the first groove 106, and the first groove 106 is communicated to the first air blowing hole 102. The path through which the gas passes from the gas outlet of the gas pump, through the fourth duct and the first recess 106 to the first gas hole 102 forms a first gas path.
The top surface of the lower flange plate 3 is also provided with an upward protruding arc-shaped boss 304, the radian of the arc-shaped boss 304 is matched with that of the first circumferential line and is positioned below the first circumferential line, the distance between the top surface of the arc-shaped boss 304 and the top surface of the rotating plate 2 is larger than the diameter of the solder ball, and the distance between the top surface of the arc-shaped boss 304 and the bottom surface of the rotating plate 2 is smaller than the diameter of the solder ball. One end of the circular arc-shaped boss 304 is positioned at a position where the feeding hole 101 is opposite to the lower flange plate 3, the other end of the circular arc-shaped boss extends to the discharging hole 301, and the discharging hole 301 penetrates the circular arc-shaped boss 304 upwards.
The working process of the laser tin ball welding device is as follows: the opening driving mechanism drives the rotating disc 2 to rotate, and the gas spraying device 5 is opened for supplying gas. Solder balls are loaded into the storage cylinder 4, and the solder balls enter the feed hole 101 from the feed port. Part of the solder balls in the feed port will fall into the transfer holes 201 on the rotating disk 2, and since only one solder ball can be accommodated in each transfer hole 201 and the distance between the bottom of the feed hole 101 and the rotating disk 2 is smaller than the diameter of the solder ball, during the rotation of the rotating disk 2, each transfer hole 201 can only transport one solder ball and the rest of solder balls remain in the feed hole 101. The conveying hole 201 containing the solder ball rotates to the lower part of the first air blowing hole 102, and under the synergistic effect of the gravity of the solder ball and the air flow sprayed by the first air blowing hole 102, the solder ball in the conveying hole 201 rolls to the discharging hole 301 and then rolls to the welding channel 601 communicated with the discharging hole 301. Starting the laser emitter to emit laser, melting the tin ball, and dropping liquid tin to the welded object to complete welding after solidification. It should be noted that, since the distance between the top surface of the circular arc-shaped boss 304 and the top surface of the rotating disk 2 is larger than the diameter of the solder ball, the distance between the top surface of the circular arc-shaped boss 304 and the bottom surface of the rotating disk 2 is smaller than the diameter of the solder ball, during the process that the conveying hole 201 containing the solder ball rotates below the first blowing hole 102, the solder ball does not roll into the gap between the lower flange 3 and the rotating disk 2, and the bottom surface of the upper flange 3 does not scratch the solder ball in the conveying hole 201.
According to the second embodiment, the upper flange 1 is further provided with a second air hole 103 penetrating from top to bottom, the second air hole 103 faces the first circumference, and the feeding hole 101 and the second air hole 103 are respectively arranged at two sides of the first air hole 102. The lower flange plate 3 is provided with a blanking hole 302 which is penetrated up and down, and the blanking hole 302 is arranged opposite to the second air blowing hole 103. The air injection mechanism further comprises a second air passage, and the second air passage is communicated with the air outlet of the air injection device 5 and the second air blowing hole 103.
The first groove 106 is also connected to the second air blowing hole 103, and a path through which the air passes from the air outlet of the air pump, through the fourth pipe and the first groove 106, and reaches the second air blowing hole 103 forms a second air passage.
In this embodiment, if the solder ball is not able to drop down to the discharge hole 301 by the air flow ejected from the first air hole 102 when the transfer hole 201 with the solder ball passes through the first air hole 102, the solder ball in the transfer hole 201 will be blown down to the blanking hole 302 by the air flow ejected from the second air hole 103 when the transfer hole 201 passes through the second air hole 103, so that the solder ball can be transferred smoothly when the transfer hole 201 passes through the feed hole 101 next time.
According to the third embodiment, an indexing detector is further included on the basis of the second embodiment, and the indexing detector is used for detecting the change of indexing of the rotating disc 2.
The rotating disc 2 is provided with detection holes 202 distributed along a second circumferential line, and the second circumferential line and the first circumferential line are concentric circles. The detection holes 202 are in one-to-one correspondence with the transmission holes 201, and the centers of the corresponding detection holes 202, the transmission holes 201 and the first circumferential line are positioned on the same straight line. The transfer holes 201 and the detection holes 202 are uniformly distributed on the circumferential line where they are located.
The index detector is an opposite-type photoelectric sensor 7, the opposite-type photoelectric sensor 7 is arranged at a position corresponding to the second circumference, and a transmitting end 701 and a receiving end 702 of the opposite-type photoelectric sensor 7 are arranged opposite to each other and are respectively arranged above the upper flange plate 1 and below the lower flange plate 3.
The upper flange 1 is provided with a first through hole 104 which penetrates up and down at a position corresponding to the correlation type photoelectric sensor 7, and the lower flange 3 is provided with a second through hole 303 which penetrates up and down at a position corresponding to the correlation type photoelectric sensor 7.
On the first circumference, the central angle of the circular arc clamped between every two adjacent conveying holes 201 is A degrees; the included angle formed between the positions of the first through holes 104 and the first air blowing holes 102, which are opposite to each other on the rotating disc 2, and the connecting lines of the circle centers of the first circumference is 7 times of the A degree.
On the first circumferential line, the central angle of the arc sandwiched between the positions facing the second air blowing holes 103 and the first air blowing holes 102 is 10 times the angle a.
In this embodiment, when the detection hole 202 passes below the first through hole 104, the signal of the transmitting end 701 of the correlation type photoelectric sensor 7 can pass through the first through hole 104, the detection hole 202 and the second through hole 303 to reach the receiving end 702, and at this time, the correlation type photoelectric sensor 7 transmits the signal to cause the driving mechanism to suspend rotation, and then the driving mechanism continues to drive the rotating disc 2 to rotate. When the driving mechanism is suspended, the rotating disk 2 also stops rotating, and at this time, the transfer holes 201 are located below the first and second air blowing holes 102 and 103, respectively.
In this embodiment, the temporary residence of the transfer hole 201 below the first air blowing hole 102 and the second air blowing hole is beneficial to the air flow to blow off the solder balls in the transfer hole 201, so as to reduce the probability of material blockage.
According to the fourth embodiment, on the basis of the third embodiment, the bottom of the upper flange plate 1 is also recessed upward with an arc-shaped cavity 105. The arc of the circular arc-shaped cavity 105 is matched with the arc of the first circumference and is positioned above the first circumference, and the distance between the bottom opening of the circular arc-shaped cavity 105 and the rotating disc 2 is smaller than the diameter of the solder ball. One end of the circular arc-shaped cavity 105 is communicated with the feeding hole 101, and the other end of the circular arc-shaped cavity is directed to the first air blowing hole 102.
In this embodiment, the solder balls in the feed inlet may roll into the circular arc-shaped accommodating cavity, and the circular arc-shaped accommodating cavity is also located above the first circumferential line, so that the contact opportunity between the conveying hole 201 and the solder balls is increased, and the probability that no solder balls exist in the conveying hole 201 when reaching the first blowing hole 102 is greatly reduced.
According to the fifth embodiment, on the basis of the first embodiment, the driving mechanism includes a motor, a transmission shaft 901, and a clamping plate 902, and the clamping plate 902 is circular. Two clamping plates 902 are respectively arranged on the upper side and the lower side of the rotating disc 2 and clamp the rotating disc 2, the clamping plates 902 are coaxial with the rotating disc 2, and assembly holes are formed in the positions of the clamping plates 902 and the axis of the rotating disc 2. The transmission shaft 901 is inserted into the assembly hole for fixation, and the output shaft of the motor is coaxially fixed with the transmission shaft 901. The output shaft of the motor can drive the rotating disc 2 to rotate when rotating.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. A laser tin ball welding device is characterized in that:
the conveying mechanism comprises an upper flange plate, a lower flange plate, a rotating plate and a driving mechanism, wherein the upper flange plate, the lower flange plate and the rotating plate are coaxial, the driving mechanism is used for driving the rotating plate to rotate around the central axis of the rotating plate, and the upper flange plate and the lower flange plate are respectively arranged on the upper side and the lower side of the rotating plate;
the rotary plate is provided with a plurality of vertically-through conveying holes which are distributed along a first circumferential line and can only accommodate a single tin ball, the circle center of the first circumferential line is positioned on the axis of the rotary plate, the upper flange plate is provided with vertically-through feeding holes, the distance between the bottom of each feeding hole and the rotary plate is smaller than the diameter of the tin ball, the lower flange plate is provided with vertically-through discharging holes, and the feeding holes and the discharging holes are opposite to the first circumferential line;
the upper flange plate is provided with a first air blowing hole which is communicated up and down, and the first air blowing hole is arranged opposite to the discharging hole;
the bottom of the storage cylinder is provided with a feed port which is communicated with the feed hole;
the air injection mechanism comprises an air injection device and a first air channel, an air outlet of the air injection device is continuously and outwardly injected, and the first air channel is communicated with the air outlet of the air injection device and the first air blowing hole;
a melt mechanism having a welding channel in communication with the discharge aperture;
the rotating disc is provided with detection holes which are vertically communicated with each other and distributed along a second circumferential line, and the second circumferential line and the first circumferential line are concentric circles; the detection holes are in one-to-one correspondence with the transmission holes, and the circle centers of the corresponding detection holes, the transmission holes and the first circumferential line are positioned on the same straight line; the conveying holes and the detection holes are uniformly distributed on the circumferential line where the conveying holes and the detection holes are located;
the laser tin ball welding device further comprises an indexing detector, wherein the indexing detector is an opposite-type photoelectric sensor, the opposite-type photoelectric sensor is arranged at a position corresponding to the second circumference, and a transmitting end and a receiving end of the opposite-type photoelectric sensor are oppositely arranged and are respectively arranged above the upper flange plate and below the lower flange plate;
a first through hole which is vertically communicated is formed in the position, corresponding to the correlation type photoelectric sensor, of the upper flange plate, and a second through hole which is vertically communicated is formed in the position, corresponding to the correlation type photoelectric sensor, of the lower flange plate;
on the first circumference, the central angle of the circular arc clamped between every two adjacent transmission holes is A degrees; the included angle formed between the right opposite positions of the first through hole and the first air blowing hole on the rotating disc and the connecting line of the circle center of the first circumference is an integer multiple of A degrees;
the top surface of the lower flange plate is also provided with an arc-shaped boss in an upward protruding mode, the radian of the arc-shaped boss is matched with that of the first circumferential line and is positioned below the first circumferential line, the distance between the top surface of the arc-shaped boss and the top surface of the rotating plate is larger than the diameter of the tin ball, and the distance between the top surface of the arc-shaped boss and the bottom surface of the rotating plate is smaller than the diameter of the tin ball; one end of the circular arc-shaped boss is positioned at a position where the feeding hole is opposite to the lower flange plate, the other end of the circular arc-shaped boss extends to the discharging hole, and the discharging hole penetrates through the circular arc-shaped boss upwards.
2. The laser solder ball bonding apparatus according to claim 1, wherein:
the upper flange plate is also provided with a second air blowing hole which is vertically communicated, the second air blowing hole is opposite to the first circumference, and the feeding hole and the second air blowing hole are respectively arranged at two sides of the first air blowing hole; the lower flange plate is provided with a blanking hole which is vertically communicated, and the blanking hole is opposite to the second air blowing hole;
the air injection mechanism further comprises a second air passage, and the second air passage is communicated with an air outlet of the air injection device and the second air blowing hole.
3. The laser solder ball bonding apparatus according to claim 2, wherein:
on the first circumference, the central angle of the arc clamped between the positions opposite to the second air blowing hole and the first air blowing hole is an integral multiple of A degrees.
4. The laser solder ball bonding apparatus according to claim 1, wherein:
the bottom of the upper flange plate is also provided with an arc-shaped cavity in an upward concave manner, the radian of the arc-shaped cavity is matched with that of the first circumferential line and is positioned above the first circumferential line, the distance between the bottom opening of the arc-shaped cavity and the rotating disc is smaller than the diameter of the solder ball, one end of the arc-shaped cavity is communicated with the feeding hole, and the other end of the arc-shaped cavity is directed at the first blowing hole.
5. The laser solder ball bonding apparatus according to claim 1, wherein:
the driving mechanism comprises a motor, a transmission shaft and a clamping plate, and the clamping plate is circular; the two clamping plates are respectively arranged on the upper side and the lower side of the rotating disc and clamp the rotating disc, the clamping plates are coaxial with the rotating disc, and the axial positions of the clamping plates and the rotating disc are provided with assembly holes; the transmission shaft is inserted into the assembly hole to be fixed, and the output shaft of the motor is coaxially fixed with the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910094968.8A CN109570681B (en) | 2019-01-31 | 2019-01-31 | Laser tin ball welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910094968.8A CN109570681B (en) | 2019-01-31 | 2019-01-31 | Laser tin ball welding device |
Publications (2)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110328459A (en) * | 2019-08-19 | 2019-10-15 | 广东利元亨智能装备股份有限公司 | A kind of soldered ball switching device and welder |
| CN111906437B (en) * | 2020-09-04 | 2022-09-13 | 华工法利莱切焊系统工程有限公司 | Connecting device for quickly disassembling and assembling laser head, laser head and laser processing equipment |
| CN116117261B (en) * | 2023-02-03 | 2023-08-15 | 深圳市镭沃自动化科技有限公司 | Automatic change multichannel tin ball welding equipment of laser |
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