A PCB board double-sided processing line equipment

Abstract

The present invention discloses a double-sided processing assembly line for PCB boards, comprising a first assembly line, a second assembly line, and a lifting mechanism. The first assembly line comprises a first processing line and a first reflow line, which is in the opposite direction of the first processing line, and a first tool is circulated and transported between the first processing line and the first reflow line. The second assembly line comprises a second processing line and a second reflow line, which is in the opposite direction of the second processing line, and a second tool is circulated and transported between the second processing line and the second reflow line. The lifting mechanism comprises a composite lifting assembly, which is disposed between the first and second assembly lines and is used to transport the first tool between the first processing line and the first reflow line, and to transport the second tool between the second processing line and the second reflow line. The double-sided processing assembly line of the present invention has a simple structure, low manufacturing cost, and high processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automated processing of PCB boards, and in particular to a double-sided processing line device for PCB boards. Background Art

[0002] Because the front and back sides of PCBs have different shapes and structures, two different fixtures are required to secure the PCBs during processing. Currently, during double-sided PCB processing, the reflow of the two fixtures is achieved using independent lifting mechanisms, which has the disadvantages of high production costs and complex program logic. Furthermore, existing double-sided PCB processing technologies also suffer from complex fixture flipping mechanisms, which can cause the two fixtures to shake or move relative to each other during flipping. This results in high production costs for the fixture flipping mechanism and poor protection of the PCB during flipping. Summary of the Invention

[0003] The main purpose of the present invention is to provide a PCB double-sided processing line equipment, aiming to reduce the manufacturing cost of the PCB double-sided processing line equipment.

[0004] To achieve the above-mentioned object, the present invention proposes a PCB double-sided processing line device, comprising:

[0005] The first assembly line includes a first processing line and a first return line in a direction opposite to that of the first processing line, wherein the first processing line and the first return line are spaced apart from each other, and the first tooling is cyclically transferred between the first processing line and the first return line;

[0006] The second assembly line includes a second processing line and a second return line in a direction opposite to that of the second processing line, wherein the second processing line and the second return line are spaced apart from each other, and the second tooling is cyclically transferred between the second processing line and the second return line;

[0007] The lifting mechanism includes a composite lifting assembly that can move up and down relative to the first processing line or the second processing line. The composite lifting assembly is arranged between the first assembly line and the second assembly line. The composite lifting assembly is used to transfer the first tooling between the first processing line and the first return line, and to transfer the second tooling between the second processing line and the second return line.

[0008] In one embodiment, the compound lifting assembly transfers the first tool from the first return line to the first processing line, and the compound lifting assembly transfers the second tool from the second processing line to the second return line.

[0009] In one embodiment, the composite lifting assembly includes a clamping assembly and a lifting platform. The clamping assembly can be flipped up and down and is arranged above the lifting platform. The clamping assembly is located between the first processing line and the second processing line and is used to clamp the first tooling and the second tooling. The lifting platform can move up and down between the first processing line and the first return line or between the second processing line and the second return line.

[0010] In one embodiment, the composite lifting assembly further comprises a conveyor belt connected to the lifting platform, wherein the conveyor belt can move in a first direction to transfer the first tooling from the lifting platform to the first processing line, and the conveyor belt can also move in a second direction to transfer the second tooling from the lifting platform to the second return line, wherein the first direction is opposite to the second direction.

[0011] In one embodiment, the composite lifting assembly further comprises a sensor connected to the conveyor belt, wherein the sensor can identify the position of the tooling on the lifting platform, and the sensor is used to control the conveying direction of the conveyor belt.

[0012] In one embodiment, the clamping assembly includes a first clamping jaw and a second clamping jaw, the first clamping jaw is formed with a first clamping position and is used to clamp the first tool, and the second clamping jaw is formed with a second clamping position and is used to clamp the second tool.

[0013] In one embodiment, the first clamping jaw includes two first clamping blocks, and the opposite end surfaces of the two first clamping blocks are respectively recessed to form a first groove, and the first clamping position is formed between the two first grooves. The second clamping jaw includes two second clamping blocks, and the opposite end surfaces of the two second clamping blocks are respectively recessed to form a second groove, and the second clamping position is formed between the two second grooves.

[0014] In one embodiment, the end surface of the first clamping block adjacent to the second clamping block is recessed to form a relief groove, one end of the second clamping block is disposed in the relief groove, and the second clamping block corresponds to the relief groove in a one-to-one manner. In one embodiment, the PCB double-sided processing line equipment further includes a drive mechanism for driving the lifting platform to move up and down, and for driving the clamping assembly to flip or clamp or release the first tooling or the second tooling.

[0015] In one embodiment, the lifting mechanism further includes a first lifting assembly and a second lifting assembly, and the first lifting assembly and the second lifting assembly are respectively arranged at one end of the first processing line and the second processing line, wherein the first lifting assembly is used to transport the first tooling between the first processing line and the first return line along a direction opposite to the conveying direction of the composite lifting assembly, and the second lifting assembly is used to transport the second tooling between the second processing line and the second return line along a direction opposite to the conveying direction of the composite lifting assembly.

[0016] The technical solution of the present invention provides the composite lifting assembly at adjacent ends of the first processing line and the second processing line, so that the composite lifting assembly can simultaneously transport the first tooling and the second tooling, thereby reducing the number of lifting assemblies in the PCB board double-sided processing line equipment, thereby simplifying the structure of the PCB board double-sided processing line equipment and reducing the manufacturing cost of the PCB board double-sided processing line equipment. The double-sided processing line equipment for PCB boards of the present invention can not only perform double-sided processing on PCB boards, such as dispensing glue or welding, but can also process the same side of the PCB boards; when the first tooling and the second tooling have the same structure, multiple lines can operate simultaneously to process the same side of the PCB board, which can improve the processing efficiency of the PCB board; when the first tooling and the second tooling have different structures, that is, the first tooling supports the A side of the PCB board and processes the B side of the PCB board, and the second tooling supports the B side of the PCB board and processes the A side of the PCB board, at this time, because the composite lifting component transports the first tooling and the second tooling together, the volume of the line equipment is reduced and the manufacturing cost of the line equipment is reduced. The double-sided processing line equipment of PCB boards of the present invention has the advantages of simple structure, low manufacturing cost and high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 1 is a schematic structural diagram of a double-sided processing line device for PCB boards according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 The main view;

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the composite lifting assembly in FIG.

[0021] Figure 4 for Figure 3 A schematic diagram of the structure of the clamping assembly;

[0022] Figure 5 for Figure 3 Schematic diagram of the structure of the middle lifting platform.

[0023] Description of Figure Numbers:

[0024]

[0025]

[0026] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides a PCB double-sided processing line device 100.

[0031] See also Figure 1 and Figure 2 In one embodiment of the present invention, the PCB double-sided processing line equipment 100 includes a first assembly line 10, a second assembly line 30, a tooling assembly 70, and a lifting mechanism. The first assembly line 10 includes a first processing line 11 and a first reflow line 13 in the opposite direction of the first processing line 11. The first reflow line 13 is arranged below the first processing line 11, and the length of the first reflow line 13 is the same as that of the first processing line 11. The second assembly line 30 includes a second processing line 31 and a second reflow line 33 in the opposite direction of the second processing line 31. The second reflow line 33 is arranged below the second processing line 11. 31, the length of the second reflow line 33 is consistent with the length of the second processing line 31; the tooling assembly 70 includes a first tooling 71 and a second tooling 73, the first tooling 71 and the second tooling 73 are respectively provided on the first assembly line 10 and the second assembly line 30, the first tooling 71 is circulated and transmitted between the first processing line 11 and the first reflow line 13, and the second tooling 73 is circulated and transmitted between the second processing line 31 and the second reflow line 33, the first tooling 71 and the second tooling 73 are both used to hold PCB boards, and the structures of the first tooling 71 and the second tooling 73 are the same or different.

[0032] The lifting mechanism includes a first lifting component, a second lifting component and a compound lifting component 50 that can move up and down relative to the first processing line 11 or the second processing line 31. The first lifting component and the second lifting component are respectively arranged at one end of the first processing line 11 and the second processing line 31, that is, the first lifting component is provided at the end of the first processing line 11 away from the second processing line 31, and the first lifting component can move up and down between the extension surface of the first processing line 11 facing away from the second processing line 31 and the extension surface of the first return line 13 facing away from the second return line 33. The second processing line 31 is provided at the end away from the first processing line 11 with the second lifting component, and the second lifting component can move up and down between the extension surface of the second processing line 31 facing away from the first processing line 11 and the extension surface of the first return line 13 facing away from the second return line 33. The first processing line 11 and the second processing line 31 are moved up and down between the extension surface of the second return line 33 facing away from the first return line 13, and the other end of the first processing line 11 and the second processing line 31 are jointly provided with the composite lifting component 50; wherein, the first lifting component is used to transfer the first tooling 71 between the first processing line 11 and the first return line 13, and the second lifting component is used to transfer the second tooling 73 between the second processing line 31 and the second return line 33; the composite lifting component 50 is used to transfer the first tooling 71 between the first processing line 11 and the first return line 13 in a direction opposite to the transfer direction of the first lifting component, and to transfer the second tooling 73 between the second processing line 31 and the second return line 33 in a direction opposite to the transfer direction of the second lifting component.

[0033] The technical solution of the present invention provides the composite lifting assembly 50 at the adjacent ends of the first processing line 11 and the second processing line 31, so that the composite lifting assembly 50 can simultaneously transport the first tooling 71 and the second tooling 73, thereby reducing the number of lifting assemblies in the PCB board double-sided processing assembly line equipment 100, thereby simplifying the structure of the PCB board double-sided processing assembly line equipment 100 and reducing the manufacturing cost of the PCB board double-sided processing assembly line equipment 100. The PCB board double-sided processing line equipment 100 of the present invention can not only perform double-sided processing on PCB boards, such as dispensing or welding, but also process the same side of the PCB board; when the first fixture 71 and the second fixture 73 have the same structure, multiple lines operate simultaneously to process the same side of the PCB board, which can improve the processing efficiency of the PCB board; when the first fixture 71 and the second fixture 73 have different structures, that is, the first fixture 71 supports the A side of the PCB board and processes the B side of the PCB board, and the second fixture 73 supports the B side of the PCB board and processes the A side of the PCB board, at this time, because the composite lifting component 50 transports the first fixture 71 and the second fixture 73 together, the volume of the line equipment is reduced and the manufacturing cost of the line equipment is reduced. The PCB board double-sided processing line equipment of the present invention has the advantages of simple structure, low manufacturing cost and high processing efficiency.

[0034] In the above embodiment, the composite lifting assembly 50 transfers the first tool 71 from the first return line 13 to the first processing line 11 , and the composite lifting assembly 50 transfers the second tool 73 from the second processing line 31 to the second return line 33 .

[0035] More specifically, the first processing line 11 has a first front end and a first rear end, the first tooling 71 moves from the first front end toward the first rear end on the first processing line 11, the second processing line 31 has a second front end and a second rear end, the second tooling 73 moves from the second front end toward the second rear end on the second processing line 31, and the first front end and the second rear end are adjacently spaced apart. During processing, the first tooling 71 on the first reflow line 13 is transferred to the composite lifting assembly 50, and the composite lifting assembly 50 transfers the first tooling 71 upward to the first front end, and the first tooling 71 is processed on the first processing line 11. When the first tooling 71 is processed on the first processing line 11, the first tooling 71 is transferred to the first rear end, and the first tooling 71 is then transferred to the first lifting assembly at the first rear end, and the first lifting assembly transfers the first tooling 71 downward to the first reflow line 13; at the same time, the second tooling 73 is transferred from the second rear end to the The composite lifting assembly 50 transfers the second tooling 73 downward to the second reflow line 33. The second tooling 73 flows back on the second reflow line 33 in a direction away from the composite lifting assembly 50 to the very end of the second reflow line 33, and is then transferred to the second lifting assembly. The second lifting assembly transfers the second tooling 73 upward to the second front end, and then the second tooling 73 is processed on the second processing line 31. After the processing, the second tooling 73 is transferred to the second back end. The above processing process is continuously cycled to realize the process of continuous and automatic processing of the A and B sides of the PCB board.

[0036] See also Figure 3 In one embodiment, the composite lifting assembly 50 includes a clamping assembly 53 and a lifting platform 51. The clamping assembly 53 can be flipped up and down and is arranged above the lifting platform 51. The clamping assembly 53 is located between the first processing line 11 and the second processing line 31 and is used to clamp the first tooling 71 and the second tooling 73. The lifting platform 51 can move up and down between the first processing line 11 and the first reflow line 13 or between the second processing line 31 and the second reflow line 33.

[0037] During the processing, when the table top of the lifting platform 51 and the first reflow line 13 are located at the same horizontal plane, the first tooling 71 on the first reflow line 13 is transferred to the table top of the lifting platform 51, and the lifting platform 51 holds the first tooling 71 and moves upward together to near the bottom of the clamping assembly 53, and the clamping assembly 53 clamps the first tooling 71 on the lifting platform 51, and then, the second tooling 73 located at the second rear end is transferred to the lifting platform 51, and the clamping assembly 53 clamps the second tooling 73 on the lifting platform 51. At this time, the second tooling 73 clamped by the clamping assembly 53 is located below the first tooling 71 clamped by the clamping assembly 53, and then, the lifting platform 51 slightly descends to avoid the position, and the clamping assembly 5 3 is flipped downward by 180° so that the first tooling 71 is located below the second tooling 73, and then the lifting platform 51 rises to a position close to and directly below the clamping assembly 53, and the clamping assembly 53 releases the first tooling 71, and the lifting platform 51 holds the first tooling 71 and transfers the first tooling 71 to the first front end, and then the lifting platform 51 continues to rise slightly to a position close to and directly below the second tooling 73, and the clamping assembly 53 then releases the second tooling 73, and the lifting platform 51 holds the second tooling 73 and transfers the second tooling 73 downward to the second return line 33, and the clamping assembly 53 is flipped upward by 180° and reset, and the above process is continuously cycled to achieve continuous cyclic transfer of the first tooling 71 and the second tooling 73.

[0038] In more detail, in the above embodiment, in order to smoothly transfer the first tooling 71 between the first processing line 11 of the lifting platform 51, or in order to smoothly transfer the second tooling 73 between the lifting platform 51 and the second return line 33, the composite lifting assembly 50 also includes a conveyor belt 511 connected to the lifting platform 51, and the conveyor belt 511 can move along the first direction to transfer the first tooling 71 from the lifting platform 51 to the first processing line 11, and the conveyor belt 511 can also move along the second direction to transfer the second tooling 73 from the lifting platform 51 to the second return line 33, the first direction is opposite to the second direction, the first direction is consistent with the transfer direction of the first processing line 11, and the second direction is consistent with the transfer direction of the second return line 33. During the processing process, when the first tooling 71 is located on the table surface of the lifting platform 51, the first tooling 71 is located on the conveyor belt 511. When the first tooling 71 is stably located on the same horizontal plane as the first front end, the conveyor belt 511 conveys the first tooling 71 to the first front end; when the second tooling 73 is located on the table surface of the lifting platform 51, the second tooling 73 is located on the conveyor belt 511. When the second tooling 73 is stably located on the plane where the second return line 33 is located, the conveyor belt 511 conveys the second tooling 73 to the second return line 33.

[0039] Furthermore, in order to accurately determine the position of the first tool 71 or the second tool 73 on the lifting platform 51, the composite lifting assembly 50 further includes a sensor 513 connected to the conveyor belt 511. The sensor 513 can identify the position of the tool on the lifting platform 51 and is used to control the conveying direction of the conveyor belt 511. Figure 4 In one embodiment, the sensor 513 includes a first sensor 5131 and a second sensor 5133. The first sensor 5131 is installed on the end surface of the lifting platform 51 close to the first processing line 11 or the first assembly line 10, and the second sensor 5133 is installed on the end surface of the lifting platform 51 close to the second processing line 31 or the second assembly line 30. The first sensor 5131 is used to identify the position of the first tooling 71 on the lifting platform 51. When the first sensor 5131 identifies that the second tooling 73 on the lifting platform 51 is in place, the conveyor belt 511 is set to transmit along the first direction. The second sensor 5133 is used to identify the position of the second tooling 73 on the lifting platform 51. When the second sensor 5133 identifies that the second tooling 73 on the lifting platform 51 is in place, the conveyor belt 511 is set to transmit along the second direction.

[0040] See also Figure 5 In another embodiment, based on the above embodiment, the clamping assembly 53 includes a first clamping jaw 531 and a second clamping jaw 533. The first clamping jaw 531 defines a first clamping position for clamping the first tooling 71, and the second clamping jaw 533 defines a second clamping position for clamping the second tooling 73. In the non-flipped state, the first clamping position and the second clamping position are arranged vertically. By using the first clamping jaw 531 and the second clamping jaw 533 to specifically clamp the first tooling 71 and the second tooling 73, respectively, the first tooling 71 or the second tooling 73 can be clamped more tightly, preventing the first tooling 71 or the second tooling 73 from falling out of the clamping assembly 53 during the flipping process.

[0041] Specifically, the middle parts of the two opposite long sides of the first tooling 71 are recessed inward, and the middle parts of the two opposite long sides of the second tooling 73 are protruding outward; the first clamping jaw 531 includes two first clamping blocks 5311, and the opposite end surfaces of the two first clamping blocks 5311 are respectively recessed to form a first groove 5311a, and the first groove 5311a is divided into two left and right sections from the middle, and the first clamping position is formed between the two first grooves 5311a; the second clamping jaw 533 includes two second clamping blocks 5331, and the opposite end surfaces of the two second clamping blocks 5331 are respectively recessed to form a second groove 5331a, and the second groove 5331a extends from left to right along its length direction, and the second clamping position is formed between the two second grooves 5331a. The end surface of the first clamping block 5311 close to the second clamping block 5331 is recessed to form an avoidance groove 5331b. One end of the second clamping block 5331 is disposed in the avoidance groove 5331b. The second clamping block 5331 corresponds to the avoidance groove 5331b one-to-one. When the first clamping jaw 531 clamps the first tooling 71, the opposite two ends of the first tooling 71 are respectively stuck in a first groove 5311a; when the second clamping jaw 533 clamps the second tooling 73, the convex parts in the middle of the two opposite long sides of the second tooling 73 are respectively stuck in a second groove 5331a. By providing the first groove 5311a and the second groove 5331a, the first tooling 71 and the second tooling 73 are respectively tightly clamped, thereby preventing the first tooling 71 or the second tooling 73 from falling off during the flipping of the clamping assembly 53. In addition, by arranging one end of the second clamping block 5331 in the avoidance groove 5331b, while avoiding the first clamping jaw 531 and the second clamping jaw 533 from occupying too much space, it can further ensure that the first clamping jaw 531 and the second clamping jaw 533 can respectively stably clamp or release the first tooling 71 and the second tooling 73.

[0042] It can be understood that the PCB board double-sided processing assembly line equipment 100 also includes a driving mechanism 80, and the driving mechanism 80 is used to drive the lifting platform 51 to move up and down, and to drive the clamping assembly 53 to flip or clamp or release the first tool 71 or the second tool 73; wherein, the driving mechanism 80 includes a stepping motor 81 and a cylinder, and the stepping motor 81 is used to drive the lifting platform 51 to move up and down, and the cylinder is used to drive the clamping assembly 53 to flip or clamp or release the first tool 71 or the second tool 73; more specifically, the clamping assembly 53 also includes two fixed blocks 5351, one of the fixed blocks 5351 is movably connected to a first clamping block 5311 and a second clamping block 5331, and the fixed block 5351 is movably connected to the first clamping block 5311 and the ... The end surfaces of the block 5311 and the second clamping block 5331 are recessed inward to form a receiving groove, and the cylinder includes two first cylinders 83, two second cylinders 85 and two third cylinders 87. One first cylinder 83 and one second cylinder 85 are arranged together in the receiving groove, and the first cylinder 83 is used to drive the first clamping block 5311 to clamp or release the first tooling 71, and the second cylinder 85 is used to drive the second clamping block 5331 to clamp or release the second tooling 73. One third cylinder 87 is arranged at one end of the fixed block 5351 facing away from the receiving groove and is fixedly connected to the fixed block 5351. The third cylinder 87 is used to drive the first clamping block 5311 and the second clamping block 5331 to flip 180° up and down through the fixed block 5351. In the technical solution of the present invention, since the lifting platform 51 has multiple stop positions, the lifting platform 51 can be stably driven to stay at the appropriate position by the stepper motor 81. Since the unidirectional moving distance of the first clamping block 5311 and the second clamping block 5331 is unique and the unidirectional rotation angle of the fixed block 5351 is unique, the first clamping block 5311, the second clamping block 5331 and the fixed block 5351 can be quickly driven by the cylinder. Moreover, compared with the stepper motor 81, the price of the cylinder is cheaper.

[0043] In the above embodiment, both the first processing line 11 and the second processing line 31 are provided with processing positions, each of which is provided with a stopper that can move up and down. The stopper is used to position the first tooling 71 or the second tooling 73 at the processing position. During the processing process, the first tooling 71 carries the PCB board and moves from the first front end to the first rear end. During this process, when the first tooling 71 moves to the processing position, the stopper blocks the first tooling 71 to prevent it from moving further toward the first rear end, allowing the PCB board to remain in the processing position and be processed. After the PCB board is processed, the stopper moves downward, allowing the first tooling 71 to continue moving toward the first rear end with the PCB board. Similarly, the processing process of the PCB board on the second tooling 73 is similar to that described above and will not be described in detail here.

[0044] The foregoing examples are merely illustrative and serve to illustrate some of the features of the method of the present invention. The appended claims are intended to claim the widest possible scope that can be envisioned, and the embodiments presented herein are merely illustrative of selected implementations according to a combination of all possible embodiments. Therefore, it is the applicant's intention that the appended claims are not limited by the selection of examples illustrating the features of the present invention. Some numerical ranges used in the claims also include subranges therein, and variations in these ranges should also be interpreted as being covered by the appended claims where possible.

Claims

1. A PCB double-sided processing line equipment, characterized in that, include: The first assembly line includes a first processing line and a first return line in a direction opposite to that of the first processing line, wherein the first processing line and the first return line are spaced apart from each other, and the first tooling is cyclically transferred between the first processing line and the first return line; The second assembly line includes a second processing line and a second return line in a direction opposite to that of the second processing line, wherein the second processing line and the second return line are spaced apart from each other, and the second tooling is cyclically transferred between the second processing line and the second return line; The lifting mechanism includes a composite lifting assembly that can move up and down relative to the first processing line or the second processing line, the composite lifting assembly is arranged between the first assembly line and the second assembly line, the composite lifting assembly is used to transfer the first tooling from the first return line to the first processing line, and is used to transfer the second tooling from the second processing line to the second return line; the composite lifting assembly includes a clamping assembly and a lifting platform, the clamping assembly can be turned up and down and is arranged above the lifting platform, the clamping assembly is located between the first processing line and the second processing line and is used to clamp the first tooling and the second tooling, the lifting platform can move between the first processing line and the first return line or between the second processing line and the second return line The tool is adapted to move up and down between the streamlines; the clamping assembly comprises a first clamping jaw and a second clamping jaw, the first clamping jaw comprises two first clamping blocks, the opposite end surfaces of the two first clamping blocks are respectively recessed to form a first groove, a first clamping position is formed between the two first grooves for clamping a first tool; the second clamping jaw comprises two second clamping blocks, the opposite end surfaces of the two second clamping blocks are respectively recessed to form a second groove, a second clamping position is formed between the two second grooves for clamping a second tool; both the first processing line and the second processing line are provided with a processing position, the processing position is provided with a stopper which can move up and down, the stopper is used to position the first tool or the second tool at the processing position; The composite lifting assembly further includes a conveyor belt connected to the lifting platform, the conveyor belt being capable of moving in a first direction to transfer a first tool from the lifting platform to the first processing line, and the conveyor belt being capable of moving in a second direction to transfer a second tool from the lifting platform to the second return line, the first direction being opposite to the second direction; The lifting mechanism also includes a first lifting assembly and a second lifting assembly, and the first lifting assembly and the second lifting assembly are respectively arranged at one end of the first processing line and the second processing line, wherein the first lifting assembly is used to transport the first tooling between the first processing line and the first return line along a direction opposite to the transport direction of the composite lifting assembly, and the second lifting assembly is used to transport the second tooling between the second processing line and the second return line along a direction opposite to the transport direction of the composite lifting assembly.

2. The PCB double-sided processing line equipment according to claim 1, characterized in that: The composite lifting assembly further includes a sensor connected to the conveyor belt, wherein the sensor can identify the position of the tooling on the lifting platform, and the sensor is used to control the conveying direction of the conveyor belt.

3. The PCB double-sided processing line equipment according to claim 1, characterized in that: The end surface of the first clamping block close to the second clamping block is recessed to form an escape groove, one end of the second clamping block is arranged in the escape groove, and the second clamping block corresponds to the escape groove one by one.

4. The PCB double-sided processing line equipment according to claim 1, characterized in that: The PCB board double-sided processing line equipment also includes a driving mechanism for driving the lifting platform to move up and down, and for driving the clamping assembly to flip or clamp or release the first tooling or the second tooling.

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