Working method of an alignment device for a printed circuit board

Abstract

The present invention relates to the technical field of printed circuit boards, and specifically to a working method of a printed circuit board alignment device, including a base. A working cover is fixedly arranged on the top of the base. A hydraulic cylinder is fixedly inserted into the top of the working cover. The extending end of the hydraulic cylinder is fixedly connected to an upper template. A positioning mechanism for fixing a copper foil is arranged on one side of the upper template, and a flattening mechanism for straightening the copper foil is arranged on the other side of the upper template; the end of the copper foil on the flat plate is pressed and fixed by a second rubber strip. The extending end of the first cylinder is controlled to extend, and the turning frame turns. Then, the extending end of the second cylinder is controlled to extend, and the pressing wheel provides a thrust to the end of the rotating rod away from the first rubber strip, so that the rotating rod rotates. The second rubber strip cooperates with the first rubber strip to straighten and flatten the copper foil, ensuring the flatness of the copper foil and preventing wrinkles from occurring.

Description

Technical Field

[0001] The present invention relates to the technical field of printed circuit boards, and specifically to a working method of a printed circuit board alignment device. Background Art

[0002] A printed circuit board is a provider of electrical connections for electronic components. Its alignment device plays a crucial role in the production process of circuit boards. It is manufactured by electronic printing technology and consists of an insulating base plate, connecting wires, and pads for assembling and soldering electronic components. It has the dual functions of a conductive circuit and an insulating base plate. A printed circuit board can replace complex wiring to achieve electrical connections between components in a circuit, thereby simplifying the assembly and soldering work of electronic products and reducing the wiring workload.

[0003] However, before the existing circuit boards are laminated, multiple substrates need to be stacked together. The uppermost substrate is copper foil. When the copper foil covers other substrates, it is prone to wrinkling, which will affect the subsequent lamination efficiency. At the same time, before the upper template is laminated, it needs to be preheated itself, and the preheating operation is completed by the heating elements inside the upper template. Only relying on the heating elements for preheating is prone to temperature fluctuations, and it is difficult to uniformly and quickly heat the upper template to the set temperature, affecting the working efficiency of the upper template. Summary of the Invention

[0004] The technical problems solved by this solution are as follows:

[0005] (1) How to solve the problem that when the copper foil covers other substrates, it is prone to wrinkling, which will affect the subsequent lamination efficiency;

[0006] (2) How to solve the problem that only relying on the heating elements for preheating is prone to temperature fluctuations, and it is difficult to uniformly and quickly heat the upper template to the set temperature, affecting the working efficiency of the upper template.

[0007] The object of the present invention can be achieved by the following technical solutions: A printed circuit board alignment device includes a base. A working cover is fixedly arranged on the top of the base. A hydraulic cylinder is fixedly inserted into the top of the working cover. The hydraulic cylinder is longitudinally arranged, and the extending end of the hydraulic cylinder is fixedly connected to an upper template. A positioning mechanism for fixing the copper foil is arranged on one side of the upper template, and a flattening mechanism for straightening the copper foil is arranged on the other side of the upper template.

[0008] The flattening mechanism includes a first cylinder fixedly installed on the inner wall of the working cover. The first cylinder is longitudinally arranged, and a roller is rotatably arranged at the extending end of the first cylinder. A turning frame is rotatably arranged on the inner side wall of the working cover. The middle part of the turning frame is in rolling connection with the roller, and the roller is located below the turning frame.

[0009] A further technical improvement of the present invention lies in that: one end of the flipping frame is rotatably connected to a rotating rod, and one end of the rotating rod is fixedly installed with a first rubber strip, and the position of the first rubber strip corresponds to the position of the upper template.

[0010] A further technical improvement of the present invention lies in that: a second cylinder is fixedly installed on the flipping frame through a connecting seat, the extending end of the second cylinder is rotatably connected to a pressing wheel, the pressing wheel is in rolling connection with the middle part of the rotating rod away from the first rubber strip, and the connecting seat is fixedly connected to the end of the rotating rod away from the first rubber strip through a tension spring; during the process of the extending end of the hydraulic cylinder contracting to the shortest, power for pressing down on the first shift lever is provided by flipping through the transmission rod, so that the lifting rod descends to drive the positioning frame to flip, and one end of the copper foil on the flat plate is pressed and fixed by the second rubber strip. Then, control the extending end of the first cylinder to extend. Due to the influence of gravity, the flipping frame flips, and the roller is in rolling connection with the middle part of the flipping frame. When the first rubber strip contacts the other end of the copper foil, the roller separates from the flipping frame. Then, control the extending end of the second cylinder to extend, and the pressing wheel provides a thrust to the end of the rotating rod away from the first rubber strip, so that the rotating rod rotates, and the second rubber strip cooperates with the first rubber strip to straighten and flatten the copper foil, ensuring the flatness of the copper foil and preventing wrinkles. Before the extending end of the first cylinder extends, hot air blown out from the two output ends of the U-shaped tube is combined with the heat radiated by the upper template itself to heat the first rubber strip on one side of it, making it soft, thereby effectively improving the efficiency of the first rubber strip in straightening and flattening the copper foil.

[0011] A further technical improvement of the present invention lies in that: the positioning mechanism includes two guiding frames fixedly connected to the working cover, a longitudinally arranged lifting rod is movably inserted between the two guiding frames, a first shift lever is fixedly installed in the middle of the lifting rod, and a heating unit for increasing the temperature inside the working cover is arranged on one side of the lifting rod.

[0012] A further technical improvement of the present invention lies in that: a positioning frame is also rotatably arranged on the inner wall of the working cover, a second rubber strip is fixedly installed at one end of the positioning frame, and the bottom end of the lifting rod is movably connected to the middle part of the positioning frame.

[0013] A further technical improvement of the present invention lies in that: a baffle is fixedly installed on the lifting rod below the first shift lever, and a thrust spring is elastically arranged between the baffle and the lower guiding frame.

[0014] A further technical improvement of the present invention lies in that: a transmission rod is rotatably arranged on the working cover between the hydraulic cylinder and the lifting rod, a second shift lever is fixedly installed at the extending end of the hydraulic cylinder, the second shift lever is slidably connected to one end of the transmission rod, and the first shift lever is slidably connected to the other end of the transmission rod.

[0015] A further technical improvement of the present invention lies in that: the heating unit includes a U-shaped tube, the middle part of the U-shaped tube is communicated with an L-shaped tube, the middle part of the L-shaped tube is communicated with an air outlet pipe, and the air outlet pipe is located inside the working hood; by controlling the extending end of the hydraulic cylinder to contract from half of its length to the shortest, the upper template rises, and the heating element inside the upper template is turned on to preheat the upper template itself. At this time, the two sealing plugs are separated from the two output ends of the U-shaped tube respectively, and the second lever is used to drive the transmission rod to turn over, pushing the ejector rod to rise, so that the blocking block blocks the output end of the air outlet pipe, and the hot air flow entering the L-shaped tube will be injected into the U-shaped tube and blown out through the two output ends of the U-shaped tube. The hot air flow will increase the temperature around the upper template and assist in preheating the outer surface of the upper template, so that the upper template is heated while ensuring uniform heating, avoiding temperature fluctuations and affecting the working efficiency of the upper template.

[0016] A working method of a printed circuit board alignment device, which specifically includes the following steps:

[0017] Step 1: Open the working hood, place various substrates accurately on the flat plate in sequence, close the working hood and then turn on the hot air blower. Since the two sealing plugs block the two output ends of the U-shaped tube respectively at this time, the hot air flow blows out along the L-shaped tube and the air outlet pipe, and the air in the working hood is squeezed out through the exhaust holes, thereby effectively increasing the temperature in the working hood and ensuring the heating speed during the subsequent preheating of the upper template;

[0018] Step 2: Then control the extending end of the hydraulic cylinder to contract from half of its length to the shortest, so that the upper template rises, and turn on the heating element inside the upper template to preheat the upper template itself. At this time, the two sealing plugs are separated from the two output ends of the U-shaped tube respectively, and the second lever is used to drive the transmission rod to turn over, pushing the ejector rod to rise, so that the blocking block blocks the output end of the air outlet pipe, and the hot air flow entering the L-shaped tube will be injected into the U-shaped tube and blown out through the two output ends of the U-shaped tube. The hot air flow will increase the temperature around the upper template and assist in preheating the outer surface of the upper template, so that the upper template is heated while ensuring uniform heating, avoiding temperature fluctuations and affecting the working efficiency of the upper template;

[0019] Step 3: During the process of the extending end of the hydraulic cylinder shrinking to the shortest, the driving rod flips to provide a downward pressure on the first shifting rod, causing the lifting rod to descend and drive the positioning frame to flip. The second rubber strip presses and fixes one end of the copper foil on the flat plate. Then, control the extending end of the first cylinder to extend. Due to the influence of gravity, the flipping frame flips, and the roller is in rolling connection with the middle of the flipping frame. When the first rubber strip contacts the other end of the copper foil, the roller separates from the flipping frame. Then, control the extending end of the second cylinder to extend. The pressing wheel provides a thrust to the end of the rotating rod far from the first rubber strip, causing the rotating rod to rotate. The second rubber strip cooperates with the first rubber strip to straighten and flatten the copper foil, ensuring the flatness of the copper foil and preventing wrinkles. Before the extending end of the first cylinder extends, the hot air flow blown out from the two output ends of the U-shaped tube, combined with the heat dissipated by the upper template itself, heats the first rubber strip on one side of it to make it soft, thereby effectively improving the efficiency of the first rubber strip in straightening and flattening the copper foil.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] When the present invention is in use, the driving rod flips to provide a downward pressure on the first shifting rod, causing the lifting rod to descend and drive the positioning frame to flip. The second rubber strip presses and fixes one end of the copper foil on the flat plate. Then, control the extending end of the first cylinder to extend. Due to the influence of gravity, the flipping frame flips, and the roller is in rolling connection with the middle of the flipping frame. When the first rubber strip contacts the other end of the copper foil, the roller separates from the flipping frame. Then, control the extending end of the second cylinder to extend. The pressing wheel provides a thrust to the end of the rotating rod far from the first rubber strip, causing the rotating rod to rotate. The second rubber strip cooperates with the first rubber strip to straighten and flatten the copper foil, ensuring the flatness of the copper foil and preventing wrinkles. Before the extending end of the first cylinder extends, the hot air flow blown out from the two output ends of the U-shaped tube, combined with the heat dissipated by the upper template itself, heats the first rubber strip on one side of it to make it soft, thereby effectively improving the efficiency of the first rubber strip in straightening and flattening the copper foil.

[0022] When the present invention is in use, by controlling the extending end of the hydraulic cylinder to shrink from half of its length to the shortest, the upper template rises, and the heating element inside the upper template is turned on to preheat the upper template itself. At this time, the two sealing plugs are separated from the two output ends of the U-shaped tube respectively, and cooperate with the second shifting rod to drive the driving rod to flip, pushing the ejector rod to rise, so that the blocking block blocks the output end of the air outlet pipe. The hot air flow entering the L-shaped tube will be injected into the U-shaped tube and blown out from the two output ends of the U-shaped tube. The hot air flow will increase the temperature around the upper template and assist in preheating the outer surface of the upper template, ensuring uniform heating while the upper template is heated, avoiding temperature fluctuations, and avoiding affecting the working efficiency of the upper template. Description of the Drawings

[0023] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

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

[0025] Figure 2 It is a schematic sectional view of the overall structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the leveling mechanism structure of the present invention;

[0027] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the leveling mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the heating unit structure of the present invention;

[0030] Figure 7 For the present invention Figure 2 The enlarged schematic diagram of the structure at A in the present invention.

[0031] In the figure: 1. Hydraulic cylinder; 2. L-shaped pipe; 3. Base; 4. Exhaust hole; 5. Working cover; 6. Hot air blower; 7. Leveling mechanism; 8. Flat plate; 9. Positioning mechanism; 10. Upper template; 11. Support frame; 12. Sealing plug; 71. Connecting seat; 72. Second cylinder; 73. Flipping frame; 74. Roller; 75. First rubber strip; 76. Rotating rod; 77. First cylinder; 91. Heating unit; 92. Transmission rod; 93. Second lever; 94. Second rubber strip; 95. Positioning frame; 96. Guide frame; 97. Baffle; 98. First lever; 99. Lifting rod; 911. Air outlet pipe; 912. Blocking block; 913. Guide sleeve; 914. Thrust rod; 915. U-shaped pipe. Detailed implementation manners

[0032] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-7As shown in the figure, a printed circuit board alignment device includes a base 3. A working cover 5 is fixedly arranged on the top of the base 3. A hydraulic cylinder 1 is fixedly inserted into the top of the working cover 5. The hydraulic cylinder 1 is arranged longitudinally, and the extending end of the hydraulic cylinder 1 is fixedly connected with an upper template 10. A positioning mechanism 9 for fixing the copper foil is arranged on one side of the upper template 10, and a leveling mechanism 7 for straightening the copper foil is arranged on the other side of the upper template 10.

[0034] Please refer to Figure 2 and Figure 3 As shown in the figure, the above-mentioned leveling mechanism 7 includes a first cylinder 77 fixedly installed on the inner wall of the working cover 5. The first cylinder 77 is arranged longitudinally, and a roller 74 is rotatably arranged at the extending end of the first cylinder 77. A turning frame 73 is rotatably arranged on the inner side wall of the working cover 5. The middle part of the turning frame 73 is in rolling connection with the roller 74, and the roller 74 is located below the turning frame 73.

[0035] Please refer to Figure 3 and Figure 4 As shown in the figure, one end of the above-mentioned turning frame 73 is rotatably connected with a rotating rod 76. A first rubber strip 75 is fixedly installed at one end of the rotating rod 76. The position of the first rubber strip 75 corresponds to the position of the upper template 10.

[0036] Please refer to Figures 2-4 As shown in the figure, a second cylinder 72 is fixedly installed on the above-mentioned turning frame 73 through a connecting seat 71. The extending end of the second cylinder 72 is rotatably connected with a pressing wheel. The pressing wheel is in rolling connection with the middle part of the rotating rod 76 far from the first rubber strip 75. The connecting seat 71 is fixedly connected with one end of the rotating rod 76 far from the first rubber strip 75 through a tension spring; during the process of the extending end of the hydraulic cylinder 1 shrinking to the shortest, through the transmission rod 92, the first lever 98 is flipped to provide downward pressure, so that the lifting rod 99 descends to drive the positioning frame 95 to flip, and the copper foil on the flat plate 8 is pressed and fixed at one end through the second rubber strip 94. Then, control the extending end of the first cylinder 77 to extend. Due to the influence of gravity, the turning frame 73 flips. The roller 74 is in rolling connection with the middle part of the turning frame 73. When the first rubber strip 75 contacts the other end of the copper foil, the roller 74 is separated from the turning frame 73. Then, control the extending end of the second cylinder 72 to extend. The pressing wheel provides a thrust to the end of the rotating rod 76 far from the first rubber strip 75, so that the rotating rod 76 rotates. The second rubber strip 94 cooperates with the first rubber strip 75 to straighten and level the copper foil, ensuring the flatness of the copper foil and preventing wrinkles. Before the extending end of the first cylinder 77 extends, the hot air flow blown out from the two output ends of the U-shaped pipe 915 cooperates with the heat dissipated by the upper template 10 itself to heat the first rubber strip 75 on one side of it, making it soft, thereby effectively improving the efficiency of the first rubber strip 75 in straightening and leveling the copper foil.

[0037] Please refer to Figure 2 andFigure 5 As shown, the above-mentioned positioning mechanism 9 includes two guiding frames 96 fixedly connected to the working cover 5. A vertically arranged lifting rod 99 is movably inserted between the two guiding frames 96. A first shifting rod 98 is fixedly installed in the middle of the lifting rod 99. On one side of the lifting rod 99, there is a heating unit 91 for increasing the temperature inside the working cover 5.

[0038] Please refer to Figure 5 As shown, a positioning frame 95 is also rotatably arranged on the inner wall of the above-mentioned working cover 5. A second rubber strip 94 is fixedly installed at one end of the positioning frame 95. The bottom end of the lifting rod 99 is movably connected to the middle of the positioning frame 95.

[0039] Please refer to Figure 5 As shown, a baffle 97 is fixedly installed on the lifting rod 99 below the first shifting rod 98. A thrust spring is elastically arranged between the baffle 97 and the lower guiding frame 96.

[0040] Please refer to Figure 2 and Figure 5 As shown, a transmission rod 92 is rotatably arranged on the working cover 5 between the hydraulic cylinder 1 and the lifting rod 99. A second shifting rod 93 is fixedly installed at the extending end of the hydraulic cylinder 1. The second shifting rod 93 is slidably connected to one end of the transmission rod 92. The first shifting rod 98 is slidably connected to the other end of the transmission rod 92.

[0041] Please refer to Figure 5 and Figure 6 As shown, the above-mentioned heating unit 91 includes a U-shaped pipe 915. The middle of the U-shaped pipe 915 is communicated with an L-shaped pipe 2. The middle of the L-shaped pipe 2 is communicated with an air outlet pipe 911. The air outlet pipe 911 is located inside the working cover 5. By controlling the extending end of the hydraulic cylinder 1 to contract from half of its length to the shortest, the upper template 10 rises, and the heating element inside the upper template 10 is turned on to preheat the upper template 10 itself. At this time, the two sealing plugs 12 are separated from the two output ends of the U-shaped pipe 915 respectively. The second shifting rod 93 drives the transmission rod 92 to turn over, pushing the ejector rod 914 to rise, so that the shielding block 912 blocks the output end of the air outlet pipe 911. The hot air flow entering the L-shaped pipe 2 will be injected into the U-shaped pipe 915 and blown out through the two output ends of the U-shaped pipe 915. The hot air flow will increase the temperature around the upper template 10 and assist in preheating the outer surface of the upper template 10, so that the upper template 10 is heated while ensuring uniform heating, avoiding temperature fluctuations and affecting the working efficiency of the upper template 10.

[0042] Please refer to Figure 6As shown in the figure, a push rod 914 is arranged above the transmission rod 92. A shielding block 912 for blocking the output end of the air outlet pipe 911 is fixedly installed at the top end of the push rod 914. The bottom end of the push rod 914 is in rolling connection with the middle part of the transmission rod 92 close to the second shift lever 93 through a transmission wheel. Two guide sleeves 913 for guiding the push rod 914 are also fixedly installed on the inner wall of the working cover 5.

[0043] Please refer to Figure 2 and Figure 6 As shown in the figure, a hot air blower 6 is fixedly arranged at the top of the above-mentioned working cover 5. The output end of the hot air blower 6 is communicated with the input end of the L-shaped pipe 2.

[0044] Please refer to Figure 2 and Figure 7 As shown in the figure, support frames 11 are fixedly connected to both sides of the top of the above-mentioned upper template 10. A sealing plug 12 is fixedly installed on the support frame 11. The positions of the two sealing plugs 12 correspond to the two output ends of the U-shaped pipe 915 respectively.

[0045] Please refer to Figure 2 As shown in the figure, a flat plate 8 for placing the substrate is also fixedly arranged on the top of the above-mentioned base 3. The position of the flat plate 8 corresponds to the position of the upper template 10.

[0046] Please refer to Figure 1 and Figure 2 As shown in the figure, an exhaust hole 4 is formed in the back of the above-mentioned working cover 5.

[0047] A working method of a printed circuit board alignment device, which specifically includes the following steps:

[0048] Step 1: As shown in Figure 1 and Figure 2 the figure, open the working cover 5, place various substrates accurately on the flat plate 8 in sequence, close the working cover 5 and then turn on the hot air blower 6. As shown in Figure 2 , Figure 5 and Figure 7 the figure, since the two sealing plugs 12 block the two output ends of the U-shaped pipe 915 respectively at this time, the hot air flow blows out along the L-shaped pipe 2 and the air outlet pipe 911, and the air in the working cover 5 is squeezed out through the exhaust hole 4, thereby effectively increasing the temperature in the working cover 5 and ensuring the heating speed during the subsequent preheating of the upper template 10;

[0049] Step 2: As shown in Figures 5-7As shown, then control the extending end of the hydraulic cylinder 1 to contract from half of its length to the shortest, so that the upper template 10 rises, and the heating element inside the upper template 10 is turned on to preheat the upper template 10 itself. At this time, the two sealing plugs 12 are separated from the two output ends of the U-shaped tube 915 respectively, and cooperate with the second lever 93 to drive the transmission rod 92 to turn over, pushing the ejector rod 914 to rise, so that the blocking block 912 blocks the output end of the air outlet pipe 911, and the hot air flow entering the L-shaped tube 2 will be injected into the U-shaped tube 915, as Figure 2 and Figure 6 shown, blown out through the two output ends of the U-shaped tube 915, the hot air flow will increase the temperature around the upper template 10 and assist in preheating the outer surface of the upper template 10, so that the upper template 10 is heated while ensuring uniform heating, avoiding temperature fluctuations, and avoiding affecting the working efficiency of the upper template 10;

[0050] Step three: As Figures 2-4 shown, during the process of the extending end of the hydraulic cylinder 1 contracting to the shortest, the turning of the transmission rod 92 provides the downward pressure power for the first lever 98, so that the lifting rod 99 descends to drive the positioning frame 95 to turn over, and the first end of the copper foil on the flat plate 8 is pressed and fixed by the second rubber strip 94. Then control the extending end of the first cylinder 77 to extend, as Figure 3 and Figure 4 shown, due to the influence of gravity, the turning frame 73 turns over, and the roller 74 is connected to the middle of the turning frame 73 by rolling. When the first rubber strip 75 contacts the other end of the copper foil, the roller 74 is separated from the turning frame 73. Then control the extending end of the second cylinder 72 to extend, and the pressing wheel provides a thrust for the end of the rotating rod 76 away from the first rubber strip 75, so that the rotating rod 76 rotates, as Figure 2 and Figure 3 shown, the second rubber strip 94 cooperates with the first rubber strip 75 to straighten and flatten the copper foil, ensuring the flatness of the copper foil and preventing wrinkles, as Figure 2 and Figure 7 shown. Before the extending end of the first cylinder 77 extends, the hot air flow blown out through the two output ends of the U-shaped tube 915 cooperates with the heat dissipated by the upper template 10 itself to heat the first rubber strip 75 on one side of it, making it soft, thereby effectively improving the efficiency of the first rubber strip 75 in straightening and flattening the copper foil.

[0051] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A working method of a printed circuit board alignment device, characterized in that: The working method specifically comprises the following steps: Step 1: Open the working cover (5), place the various substrates on the flat plate (8) in sequence and accurately, close the working cover (5), and then turn on the hot air blower (6). At this time, the two sealing plugs (12) respectively block the two output ends of the U-shaped tube (915), so that the hot air flow is blown out along the L-shaped tube (2) and the air outlet pipe (911), and the air in the working cover (5) is squeezed out through the exhaust hole (4); Step 2: Then control the extended end of the hydraulic cylinder (1) to shrink from half the length to the shortest, so that the upper template (10) rises, and turn on the heating element inside the upper template (10) to preheat the upper template (10) itself. At this time, the two sealing plugs (12) are separated from the two output ends of the U-shaped tube (915) respectively, and cooperate with the second lever (93) to drive the transmission rod (92) to flip, pushing the push rod (914) to rise, so that the blocking block (912) blocks the output end of the outlet pipe (911), and the hot air flow entering the L-shaped tube (2) will be injected into the U-shaped tube (915) and blown out through the two output ends of the U-shaped tube (915). The hot air flow will increase the temperature around the upper template (10) and perform auxiliary preheating on the outer surface of the upper template (10); Step 3: When the extended end of the hydraulic cylinder (1) is retracted to the shortest point, the transmission rod (92) is turned to provide downward pressure to the first lever (98), so that the lifting rod (99) is lowered to drive the positioning frame (95) to turn over, and the second rubber strip (94) is used to press and fix one end of the copper foil on the flat plate (8), and then the extended end of the first cylinder (77) is controlled to extend. Due to the influence of gravity, the turning frame (73) turns over, and the roller (74) is connected to the middle part of the turning frame (73) in a rolling manner. When the first rubber strip (75) contacts the other end of the copper foil, the roller (74) is separated from the turning frame (73), and then the extended end of the second cylinder (72) is controlled to extend, and the pressing wheel provides a thrust to the end of the rotating rod (76) away from the first rubber strip (75), so that the rotating rod (76) rotates, and the copper foil is straightened and flattened by the second rubber strip (94) in cooperation with the first rubber strip (75), and before the extended end of the first cylinder (77) is extended, the hot air flow blown out from the two output ends of the U-shaped tube (915) cooperates with the heat emitted by the template (10) itself to heat the first rubber strip (75) located on one side thereof to make it soft; The printed circuit board alignment device comprises a base (3), a working cover (5) is fixedly arranged on the top of the base (3), a hydraulic cylinder (1) is fixedly inserted on the top of the working cover (5), an upper template (10) is fixedly connected to the protruding end of the hydraulic cylinder (1), a positioning mechanism (9) for fixing copper foil is arranged on one side of the upper template (10), and a leveling mechanism (7) for straightening the copper foil is arranged on the other side of the upper template (10); The leveling mechanism (7) comprises a first cylinder (77) fixedly mounted on the working cover (5); a roller (74) is rotatably arranged at the protruding end of the first cylinder (77); a turning frame (73) is rotatably arranged on the inner side wall of the working cover (5); the middle part of the turning frame (73) is rollingly connected to the roller (74); and the roller (74) is located below the turning frame (73).

2. The working method of a printed circuit board alignment device according to claim 1, characterized in that: One end of the turning frame (73) is rotatably connected to a rotating rod (76), and one end of the rotating rod (76) is fixedly mounted with a first rubber strip (75), wherein the position of the first rubber strip (75) corresponds to the position of the upper template (10).

3. The working method of a printed circuit board alignment device according to claim 1, characterized in that: A second cylinder (72) is fixedly mounted on the flip frame (73) via a connecting seat (71); a protruding end of the second cylinder (72) is rotatably connected to a pressing wheel; the pressing wheel is rollingly connected to a middle portion of a rotating rod (76) away from the first rubber strip (75); and the connecting seat (71) is fixedly connected to an end of the rotating rod (76) away from the first rubber strip (75) via a tension spring.

4. The working method of a printed circuit board alignment device according to claim 1, characterized in that: The positioning mechanism (9) comprises two guide frames (96) fixedly connected to the working cover (5), a lifting rod (99) is movably inserted between the two guide frames (96), a first shifting rod (98) is fixedly installed in the middle of the lifting rod (99), and a heating unit (91) for increasing the temperature inside the working cover (5) is arranged on one side of the lifting rod (99).

5. The working method of a printed circuit board alignment device according to claim 4, characterized in that: A positioning frame (95) is rotatably provided on the inner wall of the working cover (5), a second rubber strip (94) is fixedly mounted on one end of the positioning frame (95), and the bottom end of the lifting rod (99) is movably connected to the middle of the positioning frame (95).

6. The working method of a printed circuit board alignment device according to claim 4, characterized in that: A baffle (97) is fixedly mounted on the lifting rod (99) below the first shifting rod (98), and a thrust spring is elastically arranged between the baffle (97) and the guide frame (96) below.

7. The working method of a printed circuit board alignment device according to claim 4, characterized in that: A transmission rod (92) is rotatably arranged on the working cover (5) between the hydraulic cylinder (1) and the lifting rod (99); a second shifting rod (93) is fixedly mounted on the protruding end of the hydraulic cylinder (1); the second shifting rod (93) is slidably connected to one end of the transmission rod (92); and the first shifting rod (98) is slidably connected to the other end of the transmission rod (92).

8. The working method of a printed circuit board alignment device according to claim 4, characterized in that: The heating unit (91) comprises a U-shaped tube (915), the middle of the U-shaped tube (915) is connected to an L-shaped tube (2), the middle of the L-shaped tube (2) is connected to an air outlet pipe (911), and the air outlet pipe (911) is located in the working cover (5).

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