Automatic laser coding production line for lead frame products

Abstract

The invention provides an automatic laser code printing production line for lead frame products, and relates to a laser code printing production line, which comprises an index plate group for performing circumferential rotation, and a feeding group, a laser code printing group, a code reading detection group and a discharging group which are sequentially arranged on the periphery of the index plate group, four groups of positioning parts are uniformly distributed on the index plate group along the circumferential direction, and are used for simultaneously aligning the feeding group, the laser coding group, the code reading detection group and the discharging group respectively; a first transferring mechanism is arranged between the feeding set and the index plate set and used for transferring a lead frame to be machined on the feeding set to the positioning part, and a second transferring mechanism is arranged between the discharging set and the index plate set and used for transferring the machined lead frame on the positioning part to the discharging set. According to the production line for producing the lead frame, the production line is re-arranged and re-combined, so that the production line for producing the lead frame is small in occupied space and higher in efficiency.

Description

Technical Field

[0001] The invention relates to a laser coding production line, in particular to an automatic laser coding production line for lead frame products. Background Art

[0002] The lead frame is an important component of semiconductor packaging, mainly composed of chip pads and pins. As the chip carrier of the integrated circuit, it uses bonding materials (such as gold wire, aluminum wire, copper wire) to make the internal circuit lead end of the chip electrically connected to the external lead through the inner lead to form an electrical circuit, which plays a bridge role in connecting with the external wire. In the integrated circuit, the lead frame and packaging materials play the role of fixing the chip, protecting the internal components, transmitting electrical signals and dissipating the heat of the components to the outside, and in its production process, it is often necessary to involve the processing and production of laser coding and detection. The existing production generally adopts a linear production line. The thin-sheet lead frame is not only very easy to shift during the transportation process, causing coding errors, but also the processing efficiency of the entire production line is low, and the floor space is also large. For details, please refer to the patent "a lead frame conveying device for a two-dimensional code marking machine of a lead frame" (Announcement No. CN202878928U) disclosed in the automatic conveying device. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide an automated laser coding production line for lead frame products, by re-layouting and combining the production line to achieve a production line for producing lead frames that occupies less space and has higher efficiency.

[0004] The present invention provides the following technical solutions:

[0005] An automated laser coding production line for lead frame products, comprising a dividing plate group for circumferential rotation and a loading group, a laser coding group, a code reading and detection group and a unloading group sequentially arranged around the dividing plate group;

[0006] Four groups of positioning parts are evenly arranged along the circumference of the indexing plate group, and the four groups of positioning parts are used to simultaneously align the loading group, laser coding group, code reading and detection group and unloading group, so as to cooperate with the loading, coding, detection and unloading operations of the lead frame;

[0007] A transfer mechanism 1 is arranged between the loading group and the indexing plate group, and the transfer mechanism 1 is used to transfer the lead frame to be processed on the loading group to the positioning part. A transfer mechanism 2 is arranged between the unloading group and the indexing plate group, and the transfer mechanism 2 is used to transfer the processed lead frame on the positioning part to the unloading group. The laser coding group is used to perform laser coding on the lead frame on the positioning part rotated into place, and the code reading detection group is used to scan the code detection of the coded lead frame.

[0008] At this point, the lead frame is loaded by the loading group, and the lead frame is transferred by the transfer mechanism 1 to the positioning part that has been rotated into place in sequence, and passes through the laser coding group, the code reading and detection group and the unloading group in sequence through the rotation of the dividing plate every 90°. The laser coding is completed in the laser coding group, and the code scanning detection is completed in the code reading and detection group. In the unloading group, the processed lead frame is transferred to the unloading group by the transfer mechanism 2.

[0009] Preferably, the dividing plate group includes a turntable driven by a rotary motor, four groups of positioning parts are arranged at 90° intervals on the periphery of the turntable, and each group of positioning parts includes a suction cup installed on the turntable and a floating adjustment part located on the suction cup, the floating adjustment part is used to perform floating adjustment on the position of the lead frame after loading, and the suction cup is used to adsorb and fix the lead frame after the floating adjustment.

[0010] Preferably, the floating adjustment portion includes a positioning plate installed on the suction cup, and the suction cup is equipped with multiple groups of adsorption heads, and the adsorption heads are used to pass through the positioning plate to adsorb and fix the lead frame placed on the positioning plate. The positioning plate is provided with three groups of slides, and the three groups of slides are slide one, slide two, and slide three, respectively. Slide one and slide two are relatively distributed, and slide one and slide two are slidably installed therein, respectively, and the top claw one and top claw two are used to elastically limit the left and right sides of the lead frame under the top pressure of spring one and spring two, respectively, and the slide three is slidably installed in the slide three, and the top claw three is used to elastically limit the front side of the lead frame under the top pressure of spring three. A positioning block is also provided on the positioning plate, and the positioning block is used to cooperate with the top claw three to limit the rear side of the lead frame.

[0011] Preferably, a group of pressing blocks are further provided on the positioning disk, and the pressing blocks include two groups of inclined conical surfaces for pressing the top claws 1 and 2 and a pressing plane for pressing the top claws 3, and the ends of the top claws 1 and 2 are also provided with pressing inclined surfaces cooperating with the inclined conical surfaces, and a group of pushing cylinders are respectively arranged between the rotating disk and the loading group and the unloading group. When the pushing cylinder pushes the pressing blocks, the pressing blocks are used to simultaneously press and drive the top claws 1, 2 and 3 to expand the placement and grasping space of the lead frame, and when the pushing cylinder withdraws the pressing of the pressing blocks, that is, the pressing blocks relax the pressing of the top claws 1, 2 and 3, the top claws 1, 2 and 3 respectively cooperate with the positioning blocks under the elastic force of the springs 1, 2 and 3 to calibrate and position the lead frame placed therebetween by the transfer mechanism 1 or relax the clamping of the lead frame to cooperate with the clamping of the transfer mechanism 2;

[0012] Because the lead frame product is relatively light and thin, it is very easy to bend and wear when grasping or adjusting the positioning. In the present invention, a special structural form of the top pressure block is set to cooperate with the top claws 1, 2 and 3, so that each group of push cylinders can synchronously realize the top pressure of the top claws 1, 2 and 3 when starting, and after relaxation, the top claws 1, 2 and 3 can also automatically and synchronously calibrate and position the lead frame located therebetween under the elastic force of the springs 1, 2 and 3. The structure is relatively simple and the production cost is also low. In addition, because the top claws 1, 2 and 3 cooperate with the elastic force of the springs 1, 2 and 3, they can better adapt to the positioning of lead frames of different models, and the flexibility during positioning is also better to avoid damage to the lead frame when clamping.

[0013] Preferably, the loading group includes a horizontal base plate, a horizontal sliding cylinder, a sliding clamp, a material storage channel, a material bottom plate, a pushing plate and a lifting cylinder. Two sets of sliding clamps are slidably mounted on the horizontal base plate and driven by the horizontal sliding cylinder to slide to the bottom of the transfer mechanism. The material storage channel is placed sideways between the two sets of sliding clamps, and the two sets of sliding clamps clamp the material storage channel and position it under the drive of the clamping cylinder. The stacked lead frames are placed inside the material storage channel, and a set of material bottom plates for supporting the lead frames are also arranged at the bottom. The pushing plate is mounted on the driving end of the lifting cylinder and is used to push the material bottom plate to rise or fall along the material storage channel.

[0014] Therefore, every time the transfer mechanism grabs a group of lead frames, the pushing plate can push the material bottom plate to rise by the layer height of one lead frame in preparation for the next material grabbing by the transfer mechanism. This loading group allows the lead frames to be loaded to be stacked, which can reduce the conveying distribution space of the lead frames, and at the same time can better protect the lead frames to be loaded, making the loading production line more stable and safer.

[0015] Preferably, the laser coding group includes a printer for laser printing on the lead frame rotated into place, and the code reading and detection group includes a code reader for scanning the lead frame rotated into place. This is the prior art and will not be described in detail here.

[0016] Preferably, the transfer mechanism includes a mounting frame, a transverse linear module, a longitudinal linear module, an adsorption fixing plate and a suction nozzle. The adsorption fixing plate is equipped with a suction nozzle for adsorbing the lead frame, which is installed at the driving end of the longitudinal linear module. The longitudinal linear module is installed at the driving end of the transverse linear module to drive the lead frame to rise and fall. The transverse linear module is positioned on the mounting frame to drive the lead mold frame to move back and forth between the loading group and the dividing plate group.

[0017] Preferably, the structure of the second transfer mechanism is the same as that of the first transfer mechanism, and its transverse linear module is used to drive the lead mold frame to move back and forth between the blanking group and the indexing plate group.

[0018] Preferably, the structure of the unloading group is the same as that of the loading group, and in the present invention, two groups of sliding clamps are used to be slidably connected on the base, and a group of racks are connected to one side of each group of sliding clamps, a group of gears are meshed and connected between the two groups of racks, and the clamping cylinder is connected to a group of racks by driving, so as to complete the clamping or loosening of the two groups of sliding clamps towards or away from each other, and the synchronization and stability are good.

[0019] The beneficial effects of the present invention are:

[0020] In the production line of the present invention, the lead frame is loaded by the loading group, and the lead frame is sequentially transferred by the transfer mechanism 1 to the positioning part rotated into place, and passes through the laser coding group, the code reading and detection group and the unloading group in sequence through the rotation of the indexing plate every 90°. The laser coding is completed in the laser coding group, and the code scanning detection is completed in the code reading and detection group. In the unloading group, the processed lead frame is transferred to the unloading group by the transfer mechanism 2;

[0021] 2 Since the lead frame product is relatively thin, it is very easy to bend and wear when grabbing or adjusting the positioning. In the present invention, by setting a special structural form of the top pressure block and the top claws 1, 2 and 3, the top pressure of the top claws 1, 2 and 3 can be realized synchronously when each group of push cylinders is started, and after relaxation, the top claws 1, 2 and 3 can also automatically synchronize and calibrate the lead frame located therebetween under the elastic force of the springs 1, 2 and 3. The structure is relatively simple and the production cost is also low. In addition, because the top claws 1, 2 and 3 cooperate with the elastic force of the springs 1, 2 and 3, it can also better adapt to the positioning of lead frames of different models, and the flexibility during positioning is also better, so as to avoid damage to the lead frame when clamping;

[0022] In the production line of the present invention, a combination of a material holding channel and a sliding clamp is used to ensure that the lead frames can be stored in a stacked manner for loading or unloading. That is, every time the transfer mechanism grabs a group of lead frames, the push plate can push the material bottom plate to rise by a layer height of a lead frame to prepare for the next material grabbing by the transfer mechanism. This loading group allows the lead frames to be loaded to be stacked, which can reduce the delivery distribution space of the lead frames, and at the same time can better protect the lead frames to be loaded, so that the loading production line has better stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 yes Figure 1 A top view of

[0026] Figure 3 It is a structural schematic diagram of the indexing plate group;

[0027] Figure 4 It is a structural diagram of the positioning part and the push cylinder;

[0028] Figure 5 It is a schematic diagram of the structure of the positioning part after removing the positioning plate;

[0029] Figure 6 It is a structural diagram showing the action of the clamping material holding channel in the feeding group;

[0030] Figure 7 It is a structural schematic diagram of the push plate pushing the material bottom plate;

[0031] Figure 8 It is a schematic diagram of the structure of two sets of sliding clamps;

[0032] Fig. 9 yes Figure 8 Schematic diagram of the structure from another perspective;

[0033] Fig.10 It is a structural schematic diagram showing the meshing of two sets of racks and gears;

[0034] Fig.11 2 is a schematic diagram of the structure of the transfer mechanism 1;

[0035] Markings in the figure:

[0036] 1. Indexing plate group; 2. Loading group; 3. Laser coding group; 4. Code reading detection group; 5. Unloading group; 6. Transfer mechanism 1; 7. Transfer mechanism 2; 11. Turntable; 12. Positioning part; 13. Push cylinder; 121. Suction cup; 122. Positioning plate; 123. Adsorption head; 124. Top claw 1; 125. Top claw 2; 126. Top claw 3; 127. Positioning block; 128. Top pressure block; 12 81. Inclined conical surface; 1282. Pressing plane; 21. Horizontal base plate; 22. Horizontal sliding cylinder; 23. Sliding clamp; 231. Rack; 232. Gear; 24. Clamping cylinder; 25. Material chute; 26. Material bottom plate; 27. Pushing plate; 28. Pushing cylinder; 71. Mounting frame; 72. Horizontal linear module; 73. Vertical linear module; 74. Adsorption fixing plate; 75. Suction nozzle. DETAILED DESCRIPTION

[0037] Example 1

[0038] like Figure 1-11As shown, an automated laser coding production line for lead frame products, in this embodiment, includes a dividing plate group 1 for circumferential rotation, a loading group 2, a laser coding group 3, a code reading and detection group 4 and a unloading group 5 sequentially arranged around the dividing plate group 1;

[0039] Four groups of positioning parts 12 are evenly arranged along the circumference of the indexing plate group 1. The four groups of positioning parts 12 are used to simultaneously align the loading group 2, the laser coding group 3, the code reading and detection group 4 and the unloading group 5, so as to cooperate with the loading, coding, detection and unloading operations of the lead frame;

[0040] A transfer mechanism 1 6 is arranged between the loading group 2 and the indexing plate group 1, and the transfer mechanism 1 6 is used to transfer the lead frame to be processed on the loading group 2 to the positioning part. A transfer mechanism 2 7 is arranged between the unloading group 5 and the indexing plate group 1, and the transfer mechanism 2 7 is used to transfer the processed lead frame on the positioning part to the unloading group 5. The laser coding group 3 is used to laser code the lead frame on the positioning part rotated into place, and the code reading detection group 4 is used to scan the code detection of the coded lead frame;

[0041] At this point, the lead frame is loaded by the loading group 2, and the lead frame is transferred by the transfer mechanism 1 6 to the positioning part 12 rotated into place in sequence, and passes through the laser coding group 3, the code reading and detection group 4 and the unloading group 5 in sequence after the indexing plate rotates 90° every time. The laser coding is completed in the laser coding group 3, the code scanning detection is completed in the code reading and detection group 4, and in the unloading group 5, the processed lead frame is transferred to the unloading group 5 by the transfer mechanism 2 7.

[0042] The indexing disk group 1 includes a turntable 11 driven to rotate by a rotary motor, and four groups of positioning parts 12 are arranged at 90° intervals on the periphery of the turntable 11, and each group of positioning parts 12 includes a suction cup 121 installed on the turntable 11 and a floating adjustment part located on the suction cup 121, the floating adjustment part is used to perform floating adjustment on the position of the lead frame after loading, and the suction cup 121 is used to adsorb and fix the lead frame after floating adjustment.

[0043] The floating adjustment part includes a positioning plate 122 installed on the suction cup 121, and a plurality of groups of suction heads 123 are installed on the suction cup 121. The suction heads 123 are used to pass through the positioning plate 122 to adsorb and fix the lead frame placed on the positioning plate 122. Three groups of slides are provided on the positioning plate 122. The three groups of slides are slide one, slide two, and slide three. The slide one and the slide two are relatively distributed, and a top claw one 124 and a top claw two 125 are slidably installed therein, respectively. The top claw one 124 and the top claw two 125 are respectively used to elastically limit the left and right sides of the lead frame under the pressure of the spring one and the spring two. A top claw three 126 is slidably installed in the slide three. The top claw three 126 is used to elastically limit the front side of the lead frame under the pressure of the spring three. A positioning block 127 is also provided on the positioning plate 122. The positioning block 127 is used to cooperate with the top claw three 126 to limit the rear side of the lead frame.

[0044] A group of pressing blocks 128 are also provided on the positioning plate 122. The pressing blocks 128 include two groups of inclined conical surfaces 1281 for pressing the top claw 124 and the top claw 2 125 and a pressing plane 1282 for pressing the top claw 3 126. The ends of the top claw 124 and the top claw 2 125 are also provided with a pressing inclined surface that cooperates with the inclined conical surface 1281. A group of push cylinders 13 are also arranged between the turntable 11 and the loading group 2 and the unloading group 5. When the push cylinder 13 pushes the pressing block 128, the pressing block 128 is used to simultaneously press and drive the top claw 124. , top claw 125 and top claw 3 126 to expand the placement and grasping space of the lead frame, and when the push cylinder 13 withdraws the top pressure on the top pressure block 128, that is, the top pressure block 128 relaxes the top pressure on the top claw 124, the top claw 125 and the top claw 3 126, the top claw 124, the top claw 125 and the top claw 3 126 respectively cooperate with the positioning block 127 under the elastic force of the spring 1, the spring 2 and the spring 3 to calibrate and position the lead frame placed therebetween by the transfer mechanism 1 6 or relax the clamping of the lead frame to cooperate with the clamping of the transfer mechanism 2 7;

[0045] Because the lead frame product is relatively light and thin, it is very easy to bend and wear when grasping or adjusting the positioning. In the present invention, a special structural form of a top pressure block 128 is set to cooperate with the top claw 124, the top claw 2 125 and the top claw 3 126, so that when each group of push cylinders 13 is started, the top pressure of the top claw 124, the top claw 2 125 and the top claw 3 126 can be synchronously realized. After relaxation, the top claw 124, the top claw 2 125 and the top claw 3 126 can also automatically synchronize and calibrate the lead frame located therebetween under the elastic force of the spring 1, the spring 2 and the spring 3. The structure is relatively simple and the production cost is also low. In addition, because the top claw 124, the top claw 2 125 and the top claw 3 126 cooperate with the elastic force of the spring 1, the spring 2 and the spring 3, it can also better adapt to the positioning of lead frames of different models, and the flexibility during positioning is also better to avoid damage to the lead frame when clamping.

[0046] Example 2

[0047] An automated laser coding production line for lead frame products, in this embodiment, is further limited based on embodiment 1, wherein a loading group 2 comprises a horizontal base plate 21, a horizontal slide cylinder 22, a sliding clamp 23, a material storage channel 25, a material bottom plate 26, a pushing plate 27 and a top cylinder 28, two groups of sliding clamps 23 are slidably mounted on the horizontal base plate 21, and driven by the horizontal slide cylinder 22 to slide to the bottom of a transfer mechanism 6, a material storage channel 25 is placed sideways between the two groups of sliding clamps 23, and the two groups of sliding clamps 23 clamp the material storage channel 25 in position under the drive of a clamping cylinder 24, wherein stacked lead frames are placed, and a group of material bottom plates 26 for supporting the lead frames are also arranged at the bottom, and a pushing plate 27 is installed at the driving end of the top cylinder 28, and is used to push the material bottom plate 26 to rise or fall along the material storage channel 25;

[0048] Therefore, every time the transfer mechanism 6 grabs a group of lead frames, the pushing plate 27 can push the material bottom plate 26 to rise by the layer height of one lead frame to prepare for the next material grabbing by the transfer mechanism. This loading group 2 allows the lead frames to be loaded to be stacked, which can reduce the transportation distribution space of the lead frames, and at the same time can better protect the lead frames to be loaded, making the loading production line more stable and safer.

[0049] The laser coding group 3 includes a printer for laser printing on the lead frame rotated into place, and the code reading and detection group 4 includes a code reader for scanning the code on the lead frame rotated into place. This is the prior art and will not be described in detail here.

[0050] The transfer mechanism 6 includes a mounting frame 71, a transverse linear module 72, a longitudinal linear module 73, an adsorption fixing plate 74 and a suction nozzle 75. The adsorption fixing plate 74 is provided with a suction nozzle 75 for adsorbing the lead frame, which is mounted on the driving end of the longitudinal linear module 73. The longitudinal linear module 73 is mounted on the driving end of the transverse linear module 72 to drive the lead frame to rise and fall. The transverse linear module 72 is positioned on the mounting frame 71 to drive the lead frame to move back and forth between the feeding group 2 and the dividing plate group 1.

[0051] The structure of the second transfer mechanism 7 is the same as that of the first transfer mechanism 6 , and its transverse linear module 72 is used to drive the lead mold frame to move back and forth between the blanking group 5 and the indexing plate group 1 .

[0052] The unloading group 5 has the same structure as the loading group 2, and in the present invention, two groups of sliding clamps 23 are used to be slidably connected on the base, and one side of each group of sliding clamps 23 is connected to a group of racks 231, and a group of gears 232 are meshed and connected between the two groups of racks 231. The clamping cylinder 24 is connected to a group of racks 231 by driving, so as to complete the clamping or loosening of the two groups of sliding clamps 23 towards or away from each other, and the synchronization and stability are good.

[0053] The working principle of the present invention is:

[0054] In the production line of the present invention, the lead frame is loaded by the loading group 2, and the lead frame is sequentially transferred by the transfer mechanism 1 6 to the positioning part 12 rotated into place, and passes through the laser coding group 3, the code reading and detection group 4 and the unloading group 5 in sequence after the indexing plate rotates every 90°. The laser coding is completed in the laser coding group 3, the code scanning detection is completed in the code reading and detection group 4, and in the unloading group 5, the processed lead frame is transferred to the unloading group 5 by the transfer mechanism 2 7; and since the lead frame product is relatively light, The present invention is characterized in that the top pressure block 128 with a special structure is provided to cooperate with the top claw 124, the top claw 2 125 and the top claw 3 126, so that when each group of push cylinders 13 is started, the top pressure of the top claw 124, the top claw 2 125 and the top claw 3 126 can be realized synchronously, and after being relaxed, the top claw 124, the top claw 2 125 and the top claw 3 126 can also be pressed against the top claw 124, the top claw 2 125 and the top claw 3 126 under the elastic force of the spring 1, the spring 2 and the spring 3. The lead frame is automatically calibrated and positioned synchronously, the structure is relatively simple, and the production cost is also low. Moreover, due to the coordination of the top claw 124, the top claw 2 125 and the top claw 3 126 with the elastic force of the spring 1, the spring 2 and the spring 3, it can also better adapt to the positioning of lead frames of different models, and the flexibility during positioning is also better, so as to avoid damage to the lead frame when clamping. At the same time, in the production line of the present invention, a combination of the material accommodating channel 25 and the sliding clamp 23 is adopted to ensure that the lead frame can be stored in a stacked manner for loading or unloading, that is, whenever the transfer mechanism 1 6 grabs a group of lead frames, the pushing plate 27 can push the material bottom plate 26 to rise by the layer height of one lead frame to prepare for the next material grabbing by the transfer mechanism. This loading group 2 makes the lead frames to be loaded stacked, which can reduce the conveying distribution space of the lead frames, and also can better protect the lead frames to be loaded, so that the loading production line has better stability and safety.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automated laser coding production line for lead frame products, characterized in that: It comprises a dividing plate group (1) for circumferential rotation, and a loading group (2), a laser coding group (3), a code reading and detection group (4) and a unloading group (5) which are sequentially arranged around the dividing plate group (1); Four groups of positioning parts (12) are evenly arranged along the circumference of the indexing plate group (1), and the four groups of positioning parts (12) are used to respectively and simultaneously align the loading group (2), the laser coding group (3), the code reading and detection group (4) and the unloading group (5) to cooperate in the loading, coding, detection and unloading operations of the lead frame; A first transfer mechanism (6) is arranged between the loading group (2) and the indexing plate group (1), and the first transfer mechanism (6) is used to transfer the lead frame to be processed on the loading group (2) to the positioning part. A second transfer mechanism (7) is arranged between the unloading group (5) and the indexing plate group (1), and the second transfer mechanism (7) is used to transfer the processed lead frame on the positioning part to the unloading group (5). The laser coding group (3) is used to perform laser coding on the lead frame on the positioning part rotated into position, and the code reading detection group (4) is used to scan and detect the coded lead frame.

2. The lead frame product automated laser coding production line according to claim 1, characterized in that: The indexing disk group (1) comprises a turntable (11) driven to rotate by a rotary motor, four groups of positioning parts (12) are arranged at intervals of 90 degrees on the periphery of the turntable (11), and each group of positioning parts (12) comprises a suction cup (121) mounted on the turntable (11) and a floating adjustment part located on the suction cup (121), the floating adjustment part is used to perform floating adjustment on the position of the lead frame after loading, and the suction cup (121) is used to adsorb and fix the lead frame after floating adjustment.

3. The lead frame product automated laser coding production line according to claim 2, characterized in that: The floating adjustment part comprises a positioning plate (122) mounted on a suction cup (121), a plurality of adsorption heads (123) are mounted on the suction cup (121), the adsorption heads (123) are used to pass through the positioning plate (122) to adsorb and fix the lead frame placed on the positioning plate (122), three groups of slideways are provided on the positioning plate (122), the three groups of slideways are slideway 1, slideway 2, and slideway 3, the slideway 1 and the slideway 2 are arranged relatively, and top claws 1 (124) are respectively slidably mounted therein and a top claw 1 (124) and a top claw 2 (125), the top claw 1 (124) and the top claw 2 (125) are respectively used to elastically limit the left and right sides of the lead frame under the pressure of the spring 1 and the spring 2, a top claw 3 (126) is slidably installed in the slideway 3, the top claw 3 (126) is used to elastically limit the front side of the lead frame under the pressure of the spring 3, and a positioning block (127) is also provided on the positioning plate (122), and the positioning block (127) is used to cooperate with the top claw 3 (126) to limit the rear side of the lead frame.

4. The lead frame product automated laser coding production line according to claim 3, characterized in that: The positioning plate (122) is also provided with a group of pressing blocks (128), the pressing blocks (128) comprising two groups of inclined conical surfaces (1281) for pressing the top claw 1 (124) and the top claw 2 (125) and a pressing plane (1282) for pressing the top claw 3 (126), the ends of the top claw 1 (124) and the top claw 2 (125) are also provided with pressing inclined surfaces that cooperate with the inclined conical surfaces (1281), when the push cylinder (13) pushes the pressing blocks (128), the pressing blocks (128) are used to simultaneously The top pressure drives the top claw 1 (124), the top claw 2 (125) and the top claw 3 (126) to expand the placement and grasping space of the lead frame, and when the push cylinder (13) withdraws the top pressure on the top pressure block (128), the top claw 1 (124), the top claw 2 (125) and the top claw 3 (126) respectively cooperate with the positioning block (127) under the elastic force of the spring 1, the spring 2 and the spring 3 to calibrate and position the lead frame placed therebetween by the transfer mechanism 1 (6) or relax the clamping of the lead frame to cooperate with the clamping of the transfer mechanism 2 (7).

5. The lead frame product automated laser coding production line according to claim 1, characterized in that: The loading group (2) comprises a horizontal base plate (21), a horizontal sliding cylinder (22), a sliding clamp (23), a clamping cylinder (24), a material storage channel (25), a material bottom plate (26), a pushing plate (27) and a top cylinder (28). Two groups of sliding clamps (23) are slidably mounted on the horizontal base plate (21) and driven by the horizontal sliding cylinder (22) to slide to the bottom of the transfer mechanism (6). The material storage channel (25) is placed sideways between the two groups of sliding clamps (23). The two groups of sliding clamps (23) clamp and position the material storage channel (25) under the drive of the clamping cylinder (24). The material storage channel (25) is used to place stacked lead frames. A group of material bottom plates (26) for supporting the lead frames are also arranged at the bottom. The pushing plate (27) is installed at the driving end of the top cylinder (28) and is used to push the material bottom plate (26) to rise or fall along the material storage channel (25).

6. The lead frame product automated laser coding production line according to claim 1, characterized in that: The laser coding group (3) comprises a printer for laser printing on the lead frame rotated into position, and the code reading and detection group (4) comprises a code reader for scanning the code on the lead frame rotated into position.

7. The lead frame product automated laser coding production line according to claim 1, characterized in that: The transfer mechanism (6) comprises a mounting frame (71), a transverse linear module (72), a longitudinal linear module (73), an adsorption fixing plate (74) and a suction nozzle (75). The adsorption fixing plate (74) is provided with a suction nozzle (75) for adsorbing the lead frame, which is mounted on the driving end of the longitudinal linear module (73). The longitudinal linear module (73) is mounted on the driving end of the transverse linear module (72) to drive the lead frame to rise and fall. The transverse linear module (72) is positioned on the mounting frame (71) and is used to drive the lead frame to move back and forth between the loading group (2) and the dividing plate group (1).

8. The lead frame product automated laser coding production line according to claim 7, characterized in that: The structure of the second transfer mechanism (7) is the same as that of the first transfer mechanism (6), and its transverse linear module group (72) is used to drive the lead mold frame to move back and forth between the blanking group (5) and the indexing plate group (1).

9. The lead frame product automated laser coding production line according to claim 5, characterized in that: The structure of the unloading group (5) is the same as that of the loading group (2).

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