A continuous lead frame ultrasonic cleaning device

Abstract

The present invention relates to the technical field of lead frame cleaning, and in particular to a continuous lead frame ultrasonic cleaning device. It comprises an ultrasonic cleaning box, an ultrasonic generating device is arranged on the ultrasonic cleaning box, a cleaning basket is arranged above the ultrasonic cleaning box, a loading frame equidistantly distributed is detachably connected to the cleaning basket, a rotating block equidistantly and mirror-distributed is rotatably connected to the loading frame, an electric slide rail is arranged on the rotating block, a sliding block with mirror-distributed is arranged in the electric slide rail of the rotating block, a clamping plate is fixedly connected between the sliding blocks of equal height in the electric slide rail of the mirror-distributed rotating block, and the clamping plate is slidably connected to a blocking plate with mirror-distributed distribution. The present invention switches the lead frame between a fixed state and a free state by cooperating with the blocking plate and the clamping plate, so that all parts of the lead frame can be evenly cleaned, thereby improving the cleaning effect of the device on the lead frame.

Description

Technical Field

[0001] The invention relates to the technical field of lead frame cleaning, and in particular to a continuous lead frame ultrasonic cleaning device. Background Art

[0002] The lead frame is a key structure in microelectronic packaging such as integrated circuits and discrete devices. It is responsible for electrically connecting the chip to the external circuit. Its surface quality directly affects the chip bonding, wire bonding, and the electrical performance and life of the final product. Therefore, before the lead frame is processed, it is usually necessary to clean it to ensure its surface cleanliness. Ultrasonic cleaning is one of the cleaning methods. In the prior art, the lead frame is usually loaded in a metal basket and immersed in the cleaning agent of an ultrasonic cleaning device for static cleaning. If the lead frame is not fixed, two adjacent lead frames may adhere to each other during the cleaning process, reducing the cleaning effect. If the lead frame is fixed, the fixed part of the lead frame is difficult to clean during the cleaning process, resulting in cleaning dead corners in the lead frame. In summary, the above two situations will affect the effect of the lead frame during ultrasonic cleaning, and then affect the chip bonding, wire bonding, and the electrical performance and life of the final product. Summary of the invention

[0003] In order to overcome the shortcoming of the prior art that the lead frame cannot be cleaned uniformly, the present invention provides a continuous ultrasonic cleaning device for the lead frame that can be changed and fixed.

[0004] Technical solution: A continuous lead frame ultrasonic cleaning device comprises an ultrasonic cleaning box, the ultrasonic cleaning box is provided with an ultrasonic generating device, a cleaning basket is provided above the ultrasonic cleaning box, the cleaning basket is detachably connected with an equidistantly distributed loading frame, the loading frame is rotatably connected with an equidistant and mirror-distributed rotating block, an electric slide rail is provided on the rotating block, the electric slide rail of the rotating block is provided with a mirror-distributed slider, and a clamping plate is fixedly connected between the sliders of the mirror-distributed rotating block with equal heights, the clamping plate is slidably connected with a mirror-distributed sealing plate, a spring is provided between the clamping plate and the adjacent sealing plate, the adjacent sealing plates are in contact and cooperate, one side of the clamping plate is fixedly connected with an equidistantly distributed first fixed frame, the first fixed frame is slidably connected to the other side and adjacent clamping plate, a limiting mechanism for controlling the state of the sealing plate is provided on the rotating block, and a conveying mechanism for conveying the cleaning basket is provided above the ultrasonic cleaning box.

[0005] As an improvement of the above scheme, an equidistantly distributed extrusion plate is fixed to the clamping plate on one side, and a groove is provided on the clamping plate on the other side. The extrusion plate is made of soft material, and the extrusion plate is in contact with and cooperates with the clamping plate on the other side and adjacent to fix the lead frame.

[0006] As an improvement on the above scheme, the limiting mechanism includes a limit frame with a mirror-distribution, and the limit frames with a mirror-distribution are all fixedly connected to the adjacent rotating blocks through a mounting frame, and the rotating blocks are fixedly connected to a first sliding frame with a mirror-distribution through the mounting frame, and a sliding block with a mirror-distribution is slidably connected in the first sliding frame, and a spring is arranged between the sliding blocks with a mirror-distribution, and the sliding block is slidably connected to the limit frame, and a tension spring is arranged between the limit frame and the adjacent sliding block, the limit frame is limitedly matched with the adjacent blocking plate, and the limit frame is slidably connected with the adjacent clamping plate, and the side of the limit frame away from the adjacent clamping plate is fixedly connected to a first fixed frame, and the first fixed frames with a mirror-distribution are all limitedly slidably matched with the adjacent limit frames.

[0007] As an improvement of the above-mentioned scheme, the conveying mechanism includes a conveying device, which is arranged above the ultrasonic cleaning box, and a conveying hook is provided on the conveying device, and the conveying hook is located between the conveying device and the cleaning basket. A second fixed frame is fixedly connected to the cleaning basket, and the second fixed frame is slidably connected to a first extrusion block, a tension spring is provided between the first extrusion block and the cleaning basket, and the first extrusion block is extruded and matched with the conveying hook.

[0008] As an improvement of the above scheme, it also includes a guide mechanism for guiding the flow of cleaning liquid, the guide mechanism is arranged on the cleaning basket, the guide mechanism includes a mirror-distributed electric shaft, the mirror-distributed electric shafts are all arranged on the cleaning basket, a fixed rod is fixedly connected to the electric shaft, the mirror-distributed fixed rods are slidably connected to a second sliding frame, a spring is arranged between the fixed rod and the second sliding frame, the second sliding frame is provided with equidistantly distributed guide blades, the second sliding frame is provided with a mirror-distributed second extrusion block, the cleaning basket is fixedly connected to a mirror-distributed second fixed frame, and the second fixed frame is extrusion-matched with the adjacent second extrusion block.

[0009] As an improvement of the above scheme, it also includes a flipping mechanism for rotating the lead frame, the flipping mechanism is arranged on the equidistantly distributed loading frames, the flipping mechanism includes equidistant and mirror-distributed sliding frames, the equidistant and mirror-distributed sliding frames are respectively slidably connected to adjacent loading frames, a gear is fixedly connected to the side of the rotating block close to the adjacent loading frame, and a rack is fixedly connected to the side of the sliding frame close to the adjacent loading frame, the rack is meshed with the adjacent gear, a first fixed plate is fixedly connected to one side of the sliding frame, and a tension spring is arranged between the first fixed plate and the adjacent loading frame.

[0010] As an improvement of the above-mentioned solution, the second fixed frame is fixedly connected to a first fixed shell through a mounting frame on a side away from the cleaning basket, the first fixed shell is slidably connected to a first piston rod, a spring is arranged between the first piston rod and the adjacent first fixed shell, the mirror-distributed first piston rods are commonly fixedly connected to a second fixed plate, and the second fixed plate is in contact with and cooperates with the ultrasonic cleaning box.

[0011] As an improvement on the above scheme, a second fixed shell distributed in a mirror image is fixedly connected to the side of the cleaning basket away from the first fixed plate through a mounting frame, the first fixed shell is connected to the adjacent second fixed shell through a pipeline, the first fixed shell and the second fixed shell are both filled with gas, a two-way pressure valve distributed in a mirror image is fixedly connected to the second fixed shell, an equidistant and mirror image third fixed shell is fixedly connected to the cleaning basket through a mounting frame, the equidistantly distributed third fixed shells are connected to the adjacent second fixed shells through pipelines, the connecting points between the equidistantly distributed third fixed shells and the adjacent second fixed shells and the adjacent and mirror imaged two-way pressure valves are staggered, a second piston rod is slidably connected to the third fixed shell, and the second piston rod is in contact and cooperate with the adjacent first fixed plate.

[0012] As an improvement of the above solution, the opening pressure of the two-way pressure valve close to the second fixing frame is greater than the opening pressure of the two-way pressure valve far from the second fixing frame, which is used to control the extension time of the second piston rods distributed equally.

[0013] As an improvement of the above scheme, the sliding frame is fixedly connected to a third fixed frame distributed at equal intervals, the rotating block is fixedly connected to a fixed block, the fixed block is provided with a button, the button on the fixed block is electrically connected to the electric slide rail on the adjacent rotating block, and the third fixed frame is squeezed and fitted with the button on the adjacent fixed block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention switches the lead frame between a fixed state and a free state by cooperating with a blocking plate and a clamping plate, so that all parts of the lead frame can be evenly cleaned, thereby improving the cleaning effect of the device on the lead frame; the second sliding frame and the guide blade fan's moving path are limited by the second fixed frame, and the distances between the three guide blade fans and the cleaning basket during the whole process are within a stable range, thereby ensuring the stability of the impact force on the lead frame; the guide blade fans continuously change the driving direction of the cleaning liquid, and the impurities cleaned on the lead frame will also move away from the lead frame with the cleaning liquid, thereby ensuring that the impurities will not continue to remain near the lead frame after cleaning, thereby enhancing the cleaning effect of the device on the lead frame; the first fixed shell and the second fixed shell cooperate to immerse the lead frame in the cleaning liquid and then gradually rotate it, and cooperate with the impact of the cleaning liquid in different directions, thereby improving the uniformity of the lead frame surface cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the matching relationship between the cleaning basket and the loading frame of the present invention;

[0017] Figure 3 It is a three-dimensional structural cross-sectional view of the conveying mechanism of the present invention;

[0018] Figure 4 It is a three-dimensional structural cross-sectional view of the matching relationship between the material loading frame and the rotating block of the present invention;

[0019] Figure 5 It is a three-dimensional structural cross-sectional view of the matching relationship between the clamping plate and the blocking plate of the present invention;

[0020] Figure 6 It is a three-dimensional structural cross-sectional view of the matching relationship between the clamping plate and the extrusion plate of the present invention;

[0021] Figure 7 It is a three-dimensional structural cross-sectional view of the limiting mechanism of the present invention;

[0022] Figure 8 It is a three-dimensional structural cross-sectional view of the flow guiding mechanism of the present invention;

[0023] Fig. 9 An exploded view of the cooperation relationship between the second extrusion block and the second fixing frame of the present invention;

[0024] Fig.10 It is a three-dimensional structural cross-sectional view of the turning mechanism of the present invention;

[0025] Fig.11 It is a three-dimensional structural cross-sectional view of the matching relationship between the first fixed shell and the first piston rod of the present invention;

[0026] Fig.12 It is a three-dimensional structural cross-sectional view of the matching relationship between the second fixed shell and the two-way pressure valve of the present invention.

[0027] Names of the numbers in the figure: 1-ultrasonic cleaning box, 2-cleaning basket, 3-loading frame, 4-rotating block, 5-clamping plate, 6-sealing plate, 7-first fixed frame, 8-extrusion plate, 9-limiting mechanism, 901-limiting frame, 902-first sliding frame, 903-sliding block, 904-limiting frame, 905-first fixed frame, 10-conveying mechanism, 1001-conveying device, 1002-conveying hook, 1003-second fixed frame, 1004-first extrusion block, 11-guiding mechanism, 1101-electric shaft, 1102-fixed Rod, 1103-second sliding frame, 1104-guide blade, 1105-second extrusion block, 1106-second fixed frame, 12-flipping mechanism, 1201-sliding frame, 1202-gear, 1203-rack, 1204-first fixed plate, 1205-first fixed shell, 1206-first piston rod, 1207-second fixed plate, 1208-second fixed shell, 1209-bidirectional pressure valve, 1210-third fixed shell, 1211-second piston rod, 1212-third fixed frame, 1213-fixed block. DETAILED DESCRIPTION

[0028] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0029] In the prior art, the lead frame is usually loaded in a basket and immersed in a cleaning agent of an ultrasonic cleaning device for static cleaning. If the lead frame is not fixed, two adjacent lead frames may adhere to each other during the cleaning process, reducing the cleaning effect. If the lead frame is fixed, the fixed part of the lead frame is difficult to clean during the cleaning process, resulting in cleaning dead corners in the lead frame. In summary, the above two situations will affect the effect of the lead frame during ultrasonic cleaning, and further affect the bonding of the chip, wire bonding, and the electrical performance and life of the final product.

[0030] Embodiment 1: A continuous lead frame ultrasonic cleaning device, such as Figure 1-Figure 6As shown, an ultrasonic cleaning box 1 is provided with three cleaning chambers which are equidistantly distributed on the left and right. The lower sides of the three cleaning chambers on the ultrasonic cleaning box 1 are provided with ultrasonic generating devices which are not shown in the figure. A cleaning basket 2 is provided above the ultrasonic cleaning box 1. A loading frame 3 which is equidistantly distributed is detachably connected to the cleaning basket 2. The loading frame 3 is used to carry a lead frame. A rotating block 4 which is equidistantly distributed on the left and right and distributed in a mirror image front and back is rotatably connected to the loading frame 3. Electric slide rails are provided on opposite sides of the rotating blocks 4 which are distributed in a mirror image front and back. Slide blocks which are distributed in a mirror image front and back are provided in the electric slide rails of the rotating blocks 4. Slide blocks which are distributed in a mirror image are provided in the electric slide rails of the rotating blocks 4. A clamping plate 5 is fixedly connected between the slide blocks of equal height in the electric slide rails of the rotating blocks 4 which are distributed in a mirror image. A sealing plate 6 which is distributed in a mirror image on the left and right is slidably connected to the inner side of the clamping plate 5. The sealing plates 6 which are distributed in a mirror image on the left and right are provided on the back sides thereof. Slanted surface, a spring is arranged between the clamping plate 5 and the adjacent sealing plate 6, and the initial state of the spring between the two is the stored force state, the opposite surfaces of the two adjacent sealing plates 6 in the same vertical direction are in contact and cooperate, the upper clamping plate 5 is fixedly connected with a first fixed frame 7 equidistantly distributed front and back, the first fixed frame 7 is used to separate the adjacent lead frames, the first fixed frame 7 is slidably connected to the lower and adjacent clamping plate 5, the upper clamping plate 5 is fixedly connected with an extrusion plate 8 equidistantly distributed, the cross-section of the extrusion plate 8 is H-shaped, a groove is arranged on the lower clamping plate 5, the extrusion plate 8 is made of soft rubber, and the extrusion plate 8 is in contact and cooperate with the groove of the lower and adjacent clamping plate 5, the two are cooperated to fix the lead frame, a limiting mechanism 9 for controlling the state of the sealing plate 6 is arranged on the rotating block 4, and a conveying mechanism 10 for conveying the cleaning basket 2 is arranged above the ultrasonic cleaning box 1.

[0031] like Figure 4 , Figure 5 and Figure 7As shown, the limiting mechanism 9 includes a limiting frame 901 with left and right mirror images, the limiting frame 901 is composed of a rectangular plate and two inclined rectangular frames, and the two inclined rectangular frames are mirror images, the limiting frames 901 with left and right mirror images are respectively fixed to the left and right sides of the adjacent rotating block 4 through the mounting frame, the rotating block 4 is fixed with the first sliding frame 902 with left and right mirror images through the mounting frame, the first sliding frame 902 is located between the adjacent limiting frame 901 and the adjacent clamping plate 5, the first sliding frame 902 is a rectangular frame, the inner side of the rectangular frame of the first sliding frame 902 is slidably connected with the sliding blocks 903 with upper and lower mirror images, springs are arranged between the sliding blocks 903 with mirror images, and the sliding blocks 903 are slidably connected with the adjacent clamping plates 5. The plate 5 is slidably connected to the limit frame 904, and the side of the limit frame 904 close to the adjacent blocking plate 6 is provided with a slope, and the slopes on the two adjacent limit frames 904 gradually move away from the side away from the blocking plate 6 to the side close to the blocking plate 6, and the blocking plate 6 is provided with mirror-distributed grooves, and a tension spring is provided between the limit frame 904 and the adjacent sliding block 903. The slope on the limit frame 904 is squeezed and matched with the adjacent blocking plate 6, and the upper side plane of the limit frame 904 is limited and matched with the adjacent grooves on the adjacent blocking plate 6. The limit frame 904 is fixedly connected to the side away from the adjacent clamping plate 5 with a first fixed frame 905, and the mirror-distributed first fixed frames 905 are all limited and slidably matched with the adjacent inclined rectangular frame parts on the adjacent limit frame 901.

[0032] like Figure 1-Figure 3 As shown, the conveying mechanism 10 includes a conveying device 1001, which is arranged above the ultrasonic cleaning box 1. The conveying device 1001 is an existing mechanical hook conveying device, which will not be described in detail here. A conveying hook 1002 is arranged on the conveying device 1001, and the conveying hook 1002 is located between the conveying device 1001 and the cleaning basket 2. A second fixing frame 1003 is fixedly connected to the upper side of the cleaning basket 2, and the second fixing frame 1003 is slidably connected to a first extrusion block 1004. The left side of the first extrusion block 1004 is provided with an inclined surface inclined from top to bottom to the right. A groove is provided on the conveying hook 1002 for extrusion matching with the first extrusion block 1004. A tension spring is provided between the first extrusion block 1004 and the cleaning basket 2, and the inclined surface on the first extrusion block 1004 is extrusion matching with the conveying hook 1002.

[0033] When it is necessary to use this device to clean the lead frame, the user first removes the three loading frames 3 from the cleaning basket 2 respectively, and then the user places the lead frames one by one in the grooves on the lower clamping plate 5 of the two adjacent material plates 5. When all the grooves are placed, the user controls the slider in the electric slide rail on the rotating block 4 to drive all the lower clamping plates 5 to move upward and all the upper clamping plates 5 to move downward. During this process, the distance between the extrusion plate 8 and the adjacent lead frame is gradually shortened until the extrusion plate 8 and the adjacent lead frame are squeezed and fixed. At this time, the lead frame is loaded, and the user repeats the above steps to load the lead frame on all loading frames 3. The user reinstalls the three loading frames 3 on the cleaning basket 2, and the loading step is completed.

[0034] The user injects cleaning liquid, clean water and clean water into the three cleaning chambers of the ultrasonic cleaning box 1 from left to right respectively, and the user places the cleaning basket 2 on the right side of the conveying hook 1002. Then the user controls the conveying device 1001 to drive the conveying hook 1002 to move to the left, and the conveying hook 1002 contacts and squeezes the first squeezing block 1004 to move it upward, and at the same time stretches the tension spring between the first squeezing block 1004 and the cleaning basket 2 until the groove on the conveying hook 1002 moves rightward to the lower side of the first squeezing block 1004, and the tension spring between the first squeezing block 1004 and the cleaning basket 2 drives the first squeezing block 1004 to move downward and embed into the groove. At this time, the conveying hook 1002 and the cleaning basket 2 After the fixation is completed, the user controls the conveying device 1001 to drive the conveying hook 1002 to move rightward to above the cleaning chamber on the left side of the ultrasonic cleaning box 1. The user controls the conveying device 1001 to stop driving the conveying hook 1002 to move rightward. Then the user controls the conveying device 1001 to drive the cleaning basket 2 to move downward through the conveying hook 1002. The cleaning basket 2 moves downward and is gradually immersed in the cleaning liquid in the cleaning chamber on the left side of the ultrasonic cleaning box 1. Then the user starts the ultrasonic generating device on the lower side of the ultrasonic cleaning box 1. The ultrasonic wave is transmitted to the surface of the lead frame through the cleaning liquid in the cleaning chamber on the left side of the ultrasonic cleaning box 1 and cleans the impurities attached to the lead frame.

[0035] When the clamping is about to be completed, the limit frame 904 loses the limit on the adjacent blocking plate 6, and the spring between the blocking plate 6 and the clamping plate 5 drives the blocking plate 6 to move downward until the upper and lower adjacent blocking plates 6 contact each other until the lead frame is clamped and fixed, and the blocking plate 6 is triggered.

[0036] When the cleaning basket 2 is completely immersed in the cleaning liquid in the cleaning chamber on the left side of the ultrasonic cleaning box 1, the user controls the electric slider on the rotating block 4 to drive the clamping plates 5 on both sides to move backwards. During this process, due to the squeezing of the springs between the two blocking plates 6 and the adjacent clamping plates 5, the two blocking plates 6 are always in contact. At this time, the squeezing plate 8 loses the squeezing of the adjacent lead frame, so that the entire lead frame is in contact with the cleaning liquid. After cleaning for a period of time, the user controls the electric slider on the rotating block 4 to drive the clamping plates 5 on both sides to move toward each other and allow the squeezing plate 8 to squeeze and fix the lead frame again. Then the user controls the conveying device 1001 to drive the cleaning basket 2 to move upward out of the cleaning chamber on the left side of the ultrasonic cleaning box 1 through the conveying hook 1002, and the user controls the conveying device 1001 to drive the cleaning basket 2 to move right to the ultrasonic cleaning chamber 1 through the conveying hook 1002. The ultrasonic cleaning box 1 is cleaned in the middle cleaning chamber, and then the user repeats the above cleaning steps to clean the cleaning agent and impurities that may remain on the surface of the lead frame. After cleaning, the user controls the conveying hook 1002 to drive the cleaning basket 2 to move right to the cleaning chamber on the right side of the ultrasonic cleaning box 1 and performs a second cleaning on the cleaning agent and impurities that may remain on the surface of the lead frame. After cleaning, the user controls the conveying hook 1002 to drive the cleaning basket 2 to move right to the next step (drying, etc.). The user repeats all the above steps to repeat the ultrasonic cleaning of the lead frame until all lead frames are cleaned. At this time, the device is finished, and the lead frame is switched between a fixed state and a free state through the cooperation of the sealing plate 6 and the clamping plate 5, so that all parts of the lead frame can be evenly cleaned, thereby improving the cleaning effect of the device on the lead frame.

[0037] When the lead frame is cleaned and dried, the user controls the conveying device 1001 to stop driving the cleaning basket 2 to move, and the user drives the cleaning basket 2 to move to the right until the cleaning basket 2 moves out of the conveying hook 1002. The user controls the electric slider on the rotating block 4 to drive the clamping plates 5 on both sides to move backwards, and the clamping plates 5 on both sides drive the adjacent limit frames 904 and the first fixed frame 905 to move backwards. The tension spring between the limit frame 904 and the sliding block 903 drives the limit frame 904 to reset. At this time, the clamping plates 5 on the upper and lower sides lose their grip on the lead frame, and the user squeezes the inclined surface on the blocking plate 6 to block the upper side. Taking plate 6 as an example, the blocking plate 6 is squeezed and moves upward and squeezes the spring between the blocking plate 6 and the clamping plate 5. During this process, the blocking plate 6 contacts and squeezes the upper inclined surfaces of the two limit frames 904. The upper inclined surfaces of the two limit frames 904 are squeezed and move backwards, and at the same time, the tension spring between the limit frame 904 and the adjacent sliding block 903 is stretched until the groove on the blocking plate 6 moves to the limit frame 904. The tension spring between the limit frame 904 and the adjacent sliding block 903 drives the limit frame 904 to embed into the groove of the blocking plate 6 and re-limit the blocking plate 6. Then the user takes out the lead frame, and the use of the device is completed.

[0038] When an existing ultrasonic cleaning machine is cleaning, since most of the water in the cleaning pool is in a static state, impurities attached to the lead frame may continue to remain on the surface of the lead frame after cleaning. After the first round of cleaning is completed, the impurities will follow the lead frame into the clean water, causing the clean water to become turbid faster and increasing the frequency of clean water replacement.

[0039] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 8 and Fig. 9 As shown, the cleaning basket 2 also includes a flow guiding mechanism 11 for guiding the flow of the cleaning liquid. The flow guiding mechanism 11 is arranged on the cleaning basket 2. The flow guiding mechanism 11 includes two electric rotating shafts 1101 with front and rear mirror distribution. The two electric rotating shafts 1101 are respectively arranged on the front and rear sides of the cleaning basket 2. A fixed rod 1102 is fixedly connected to the electric rotating shaft 1101. The two fixed rods 1102 are slidably connected to a second sliding frame 1103. A spring is arranged between the fixed rod 1102 and the second sliding frame 1103. In the initial state, the fixed rod 110 2 and the second sliding frame 1103 are always in a compressed state. The second sliding frame 1103 is provided with three guide blades 1104 equidistantly distributed front and back. The guide blades 1104 have an independent power supply. The second sliding frame 1103 is provided with two second extrusion blocks 1105 distributed in a front and back mirror image. The cleaning basket 2 is fixedly connected with two second fixed frames 1106 distributed in a front and back mirror image. The second fixed frame 1106 is provided with a slide groove. The slide groove on the second fixed frame 1106 is extruded and matched with the adjacent second extrusion blocks 1105.

[0040] After the cleaning basket 2 is immersed in the cleaning liquid, the user controls the electric shaft 1101 to rotate counterclockwise, the electric shaft 1101 drives the fixed rod 1102 to rotate counterclockwise, the fixed rod 1102 drives the second sliding frame 1103 to rotate counterclockwise, the second sliding frame 1103 drives the three guide blades 1104 thereon to rotate counterclockwise, the user starts the three guide blades 1104 at the same time, the three guide blades 1104 rotate and drive the cleaning liquid to flush the lead frame in the cleaning basket 2, thereby enhancing the cleaning effect of the lead frame, and during the rotation of the second sliding frame 1103, the second sliding frame 1103 drives the two second extrusion blocks 1105 to rotate counterclockwise, and the second extrusion blocks 1105 rotate counterclockwise. During the rotation, 105 is limited by the adjacent second fixed frame 1106 and slides along the slide groove in the second fixed frame 1106. During this process, the second fixed frame 1106 limits the moving paths of the second sliding frame 1103 and the guide blades 1104, and the distances between the three guide blades 1104 and the cleaning basket 2 are all within a stable range during the whole process, thereby ensuring the stability of the impact force on the lead frame. The driving direction of the cleaning liquid by the guide blades 1104 is constantly changed, and the impurities cleaned from the lead frame will also move away from the lead frame with the cleaning liquid, ensuring that the impurities will not continue to remain near the lead frame after cleaning, thereby enhancing the cleaning effect of the device on the lead frame.

[0041] When the second extrusion block 1105 moves to the end of the slide slot of the adjacent second fixed frame 1106, the user controls the electric shaft 1101 to reverse, and the electric shaft 1101 drives the three guide blades 1104 to reverse and continue cleaning the lead frame until the cleaning step is completed. The user controls the electric shaft 1101 to drive the three guide blades 1104 to reset, and at the same time controls the guide blades 1104 to stop rotating.

[0042] When the existing cleaning device cleans the lead frame, the lead frame is in a static state. The static lead frame is prone to cleaning dead corners, resulting in reduced cleaning effect of the lead frame, and impurities attached to the lead frame may continue to remain on the surface of the lead frame after cleaning. After the first round of cleaning is completed, the impurities will be cleaned with clean water along with the lead frame, thereby causing the clean water to become turbid faster and increasing the frequency of clean water replacement.

[0043] Embodiment 3: Based on embodiment 2, Figure 4 , Fig.10 and Fig.12As shown, it also includes a flipping mechanism 12 for rotating the lead frame, the flipping mechanism 12 is arranged on the equidistant loading frame 3, the flipping mechanism 12 includes a sliding frame 1201 which is equidistant up and down and distributed in a mirror image front and back, the sliding frames 1201 which are equidistant up and down and distributed in a mirror image front and back are respectively slidably connected to adjacent loading frames 3, a gear 1202 is fixedly connected to one side of the rotating block 4 close to the adjacent loading frame 3, an equidistantly distributed rack 1203 is fixedly connected to the lower side of the sliding frame 1201, the rack 1203 is meshed with the adjacent gear 1202, a first fixed plate 1204 is fixedly connected to the right side of the sliding frame 1201, and a tension spring is arranged between the first fixed plate 1204 and the adjacent loading frame 3.

[0044] like Figure 2 and Fig.11 As shown, the second fixed frame 1106 is fixedly connected to the first fixed shell 1205 via a mounting frame on the side away from the cleaning basket 2, the first fixed shell 1205 is sealingly and slidably connected to the first piston rod 1206, and a spring is arranged between the two, and the lower sides of the two first piston rods 1206 are commonly fixedly connected to the second fixed plate 1207, and the second fixed plate 1207 is in contact with and cooperates with the bottom surface of the cleaning chamber on the ultrasonic cleaning box 1.

[0045] like Figure 10-12As shown, two second fixed shells 1208 distributed in front and back mirror images are fixedly connected to the left side of the cleaning basket 2 through a mounting frame, the first fixed shell 1205 is connected to the adjacent second fixed shell 1208 through a pipeline, the first fixed shell 1205 and the second fixed shell 1208 are both filled with gas, and the inner side of the second fixed shell 1208 is fixedly connected to a two-way pressure valve 1209 distributed in upper and lower mirror images, and the opening pressure of the upper two-way pressure valve 1209 is greater than the opening pressure of the lower two-way pressure valve 1209, and six third fixed shells 1210 that are equidistant up and down and distributed in left and right mirror images are fixedly connected to the cleaning basket 2 through a mounting frame, and the three third fixed shells 1210 in the same vertical direction are all connected to the adjacent second fixed shells 1208 through pipelines, and the connection point between the uppermost third fixed shell 1210 and the adjacent second fixed shell 1208 is located on the upper side of the upper two-way pressure valve 1209, and the middle third fixed shell 1210 is connected to the adjacent second fixed shell 1208 through pipelines. The connection point between the third fixed shell 1210 and the adjacent second fixed shell 1208 is located between the two adjacent two-way pressure valves 1209, and the connection point between the lowermost third fixed shell 1210 and the adjacent second fixed shell 1208 is located at the lower side of the lower two-way pressure valve 1209. The third fixed shell 1210 is sealed and slidably connected with the second piston rod 1211, and the right side of the second piston rod 1211 is in contact and cooperate with the adjacent first fixed plate 1204. The upper side of the sliding frame 1201 is fixedly connected with a third fixed frame 1212 equidistantly distributed on the left and right. The third fixed frame 1212 consists of a fixed plate and an extrusion rod. A fixed block 1213 is fixedly connected to the rotating block 4, and a button is arranged on the fixed block 1213. The button on the fixed block 1213 is electrically connected to the electric slide rail on the adjacent rotating block 4, and the extrusion rod part on the third fixed frame 1212 is extruded and cooperated with the button on the adjacent fixed block 1213.

[0046] When the user controls the conveying device 1001 to drive the cleaning basket 2 to move downward, the cleaning basket 2 drives the two first fixed shells 1205 to move downward at the same time, the first fixed shells 1205 drive the adjacent first piston rods 1206 to move downward, and the two first piston rods 1206 drive the second fixed plate 1207 to move downward until the second fixed plate 1207 contacts the bottom surface of the ultrasonic cleaning box 1. At this time, the lowermost loading frame 3 has been immersed in the cleaning liquid. As the cleaning basket 2 continues to move downward, the second fixed plate 1207 drives the two first piston rods 1206 to move upward relative to the two first fixed shells 1205, and at the same time squeezes the spring between the first piston rod 1206 and the adjacent first fixed shells 1205. Taking one of the first fixed shells 1205 as an example, The first piston rod 1206 squeezes and drives the gas in the first fixed shell 1205 to move through the pipeline to the second fixed shell 1208. After the gas enters the second fixed shell 1208, it moves through the pipeline to the third fixed shell 1210 at the bottom. The gas squeezes and drives the second piston rod 1211 to move rightward. The second piston rod 1211 squeezes and drives the adjacent first fixed plate 1204 to move rightward, and stretches the tension spring between the first fixed plate 1204 and the loading frame 3. The first fixed plate 1204 drives the adjacent sliding frame 1201 to move rightward. The sliding frame 1201 drives the racks 1203 evenly distributed thereon to move rightward. The racks 1203 mesh with the adjacent gears 1202 and drive the adjacent clamping plates 5 and all lead frames thereon to rotate through the rotating block 4.

[0047] When the sliding frame 1201 moves to the right, the sliding frame 1201 drives the third fixed frame 1212 evenly distributed thereon to gradually move to the right until the third fixed frame 1212 loses the squeezing of the button on the adjacent fixed block 1213. At this time, the button on the fixed block 1213 controls the slider on the electric slide rail of the adjacent rotating block 4 to drive the upper and lower clamping plates 5 to move backwards, that is, the lead frame loses its clamping, and the adjacent blocking plate 6 cooperates with the first fixed frame 7 to limit the moving range of the lead frame to prevent overlap between adjacent lead frames after the lead frame loses fixation. Subsequently, the above-mentioned cleaning step is performed, and the lead frame is immersed in the cleaning liquid and gradually rotated through the cooperation of the first fixed shell 1205 and the second fixed shell 1208, and the impact of the cleaning liquid in different directions is coordinated to improve the uniformity of the lead frame surface cleaning.

[0048] When the second piston rod 1211 at the bottom is extended to the limit position, as the cleaning basket 2 continues to move downward, the pressure in the second fixed shell 1208 gradually increases. When the pressure in the second fixed shell 1208 is greater than the pressure of the lower two-way pressure valve 1209, the gas flows through the lower two-way pressure valve 1209 and the pipeline to the middle third fixed shell 1210. At this time, the middle loading frame 3 is also immersed in the cleaning liquid. Repeat the above steps to rotate and clean the lead frame until all lead frames are cleaned. The user controls the conveying device 1001 to drive the cleaning basket 2 to move upward, and the cleaning basket 2 drives The two first fixed shells 1205 move upward and reset, the spring between the first fixed shell 1205 and the adjacent first piston rod 1206 drives the second fixed plate 1207 to reset, the gas drives the second piston rod 1211 to reset, the tension spring between the first fixed plate 1204 and the loading frame 3 drives the sliding frame 1201 to reset, the sliding frame 1201 drives the clamping plate 5 and the third fixed frame 1212 to reset, the third fixed frame 1212 re-squeezes the button on the adjacent fixed block 1213, and the button on the fixed block 1213 controls the clamping plates 5 on both sides to reset and re-clamp the lead frame.

[0049] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A continuous lead frame ultrasonic cleaning device, comprising an ultrasonic cleaning box (1), an ultrasonic generating device being arranged on the ultrasonic cleaning box (1), and a cleaning basket (2) being arranged above the ultrasonic cleaning box (1), wherein: It also includes equally spaced loading frames (3), which are all detachably connected to the cleaning basket (2), and are rotatably connected to equally spaced and mirror-distributed rotating blocks (4), which are provided with electric slide rails, and the electric slide rails of the rotating blocks (4) are provided with mirror-distributed sliders, and the sliders of equal height in the electric slide rails of the mirror-distributed rotating blocks (4) are fixedly connected to a clamping plate (5), and the clamping plate (5) is slidably connected to a mirror-distributed blocking plate. (6), a spring is provided between the clamping plate (5) and the adjacent blocking plate (6), the adjacent blocking plates (6) are in contact and fit, one side of the clamping plate (5) is fixedly connected with a first fixed frame (7) distributed equidistantly, the first fixed frame (7) is slidably connected with the other side and adjacent clamping plate (5), a limiting mechanism (9) for controlling the state of the blocking plate (6) is provided on the rotating block (4), and a conveying mechanism (10) for conveying the cleaning basket (2) is provided above the ultrasonic cleaning box (1); The limiting mechanism (9) comprises a limiting frame (901) with a mirror image distribution, wherein the limiting frames (901) with a mirror image distribution are fixedly connected to adjacent rotating blocks (4) via a mounting frame, and the rotating blocks (4) are fixedly connected to a first sliding frame (902) with a mirror image distribution via the mounting frame, wherein sliding blocks (903) with a mirror image distribution are slidably connected in the first sliding frame (902), springs are arranged between the sliding blocks (903) with a mirror image distribution, and the sliding blocks (903) are slidably connected to the limiting frame (901). A tension spring is arranged between the limit frame (904) and the adjacent sliding block (903); the limit frame (904) is in position-limiting cooperation with the adjacent blocking plate (6); the limit frame (904) is slidably connected with the adjacent clamping plate (5); a first fixing frame (905) is fixedly connected to the side of the limit frame (904) away from the adjacent clamping plate (5); and the first fixing frames (905) distributed in a mirror image are both in position-limiting cooperation with the adjacent limit frame (901).

2. The continuous lead frame ultrasonic cleaning device according to claim 1, characterized in that: The clamping plate (5) on one side is fixedly connected to equidistantly distributed extrusion plates (8), and the clamping plate (5) on the other side is provided with a groove. The extrusion plate (8) is made of a soft material, and the extrusion plate (8) is in contact with and cooperates with the clamping plate (5) on the other side and adjacent to the clamping plate (5) for fixing the lead frame.

3. The continuous lead frame ultrasonic cleaning device according to claim 2, characterized in that: The conveying mechanism (10) comprises a conveying device (1001), the conveying device (1001) being arranged above the ultrasonic cleaning box (1), the conveying device (1001) being provided with a conveying hook (1002), the conveying hook (1002) being located between the conveying device (1001) and the cleaning basket (2), the cleaning basket (2) being fixedly connected with a second fixing frame (1003), the second fixing frame (1003) being slidably connected with a first extrusion block (1004), a tension spring being arranged between the first extrusion block (1004) and the cleaning basket (2), the first extrusion block (1004) being extrusion-matched with the conveying hook (1002).

4. The continuous lead frame ultrasonic cleaning device according to claim 3 is characterized in that: The cleaning basket (2) further comprises a flow guiding mechanism (11) for guiding the flow of cleaning liquid, the flow guiding mechanism (11) being arranged on the cleaning basket (2), the flow guiding mechanism (11) comprising electric rotating shafts (1101) arranged in a mirror image, the electric rotating shafts (1101) arranged in a mirror image are all arranged on the cleaning basket (2), a fixing rod (1102) is fixedly connected to the electric rotating shaft (1101), the fixing rods (1102) arranged in a mirror image are slidably connected to a second sliding frame (1103), a spring is arranged between the fixing rod (1102) and the second sliding frame (1103), the second sliding frame (1103) is provided with flow guiding blades (1104) arranged in an equidistant manner, the second sliding frame (1103) is provided with second extrusion blocks (1105) arranged in a mirror image, the cleaning basket (2) is fixedly connected with second fixing frames (1106) arranged in a mirror image, the second fixing frames (1106) are extrusion-matched with adjacent second extrusion blocks (1105).

5. The continuous lead frame ultrasonic cleaning device according to claim 4 is characterized in that: The invention also comprises a flipping mechanism (12) for rotating the lead frame, wherein the flipping mechanism (12) is arranged on the equidistantly distributed loading frames (3), and the flipping mechanism (12) comprises equidistant and mirror-distributed sliding frames (1201), wherein the equidistant and mirror-distributed sliding frames (1201) are respectively slidably connected to adjacent loading frames (3), a gear (1202) is fixedly connected to the side of the rotating block (4) close to the adjacent loading frame (3), and a rack (1203) is fixedly connected to the side of the sliding frame (1201) close to the adjacent loading frame (3), and the rack (1203) is meshed with the adjacent gear (1202), and a first fixed plate (1204) is fixedly connected to one side of the sliding frame (1201), and a tension spring is arranged between the first fixed plate (1204) and the adjacent loading frame (3).

6. The continuous lead frame ultrasonic cleaning device according to claim 5, characterized in that: A first fixed shell (1205) is fixedly connected to a side of the second fixed frame (1106) away from the cleaning basket (2) via a mounting frame; the first fixed shell (1205) is slidably connected to a first piston rod (1206); a spring is provided between the first piston rod (1206) and an adjacent first fixed shell (1205); the mirror-distributed first piston rods (1206) are commonly fixedly connected to a second fixed plate (1207); and the second fixed plate (1207) is in contact with and cooperates with the ultrasonic cleaning box (1).

7. The continuous lead frame ultrasonic cleaning device according to claim 6, characterized in that: A mirror-distributed second fixed shell (1208) is fixedly connected to the side of the cleaning basket (2) away from the first fixed plate (1204) via a mounting frame, the first fixed shell (1205) is connected to the adjacent second fixed shell (1208) via a pipeline, both the first fixed shell (1205) and the second fixed shell (1208) are filled with gas, the second fixed shell (1208) is fixedly connected to a mirror-distributed two-way pressure valve (1209), and the cleaning basket (2) is fixedly connected to equidistant and mirror-distributed two-way pressure valves (1209) via a mounting frame. The third fixed shell (1210) is equidistantly connected to the adjacent second fixed shell (1208) through a pipeline, and the connection points between the equidistantly distributed third fixed shells (1210) and the adjacent second fixed shells (1208) are staggered with the adjacent and mirror-distributed two-way pressure valves (1209), and the third fixed shell (1210) is slidably connected with a second piston rod (1211), and the second piston rod (1211) is in contact with the adjacent first fixed plate (1204).

8. The continuous lead frame ultrasonic cleaning device according to claim 7, characterized in that: The opening pressure of the two-way pressure valve (1209) close to the second fixing frame (1003) is greater than the opening pressure of the two-way pressure valve (1209) far from the second fixing frame (1003), and is used to control the extension time of the second piston rods (1211) distributed equidistantly.

9. The continuous lead frame ultrasonic cleaning device according to claim 8, characterized in that: The sliding frame (1201) is fixedly connected to a third fixed frame (1212) which is equidistantly distributed, the rotating block (4) is fixedly connected to a fixed block (1213), the fixed block (1213) is provided with a button, the button on the fixed block (1213) is electrically connected to an electric slide rail on an adjacent rotating block (4), and the third fixed frame (1212) is squeezed and matched with a button on an adjacent fixed block (1213).

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