Aluminum-coated substrate and production process for aluminum-coated substrate

Abstract

The present application relates to the field of aluminum-coated substrates, and provides an aluminum-coated substrate and a production process for an aluminum-coated substrate. The aluminum-coated substrate comprises a substrate; the substrate comprises at least two layers of glass cloth; the adjacent glass cloth is fixedly connected by means of an adhesive; the substrate is covered with an aluminum foil. The present application has the effect of improving the flame retardant property of the aluminum-coated substrate.

Description

Aluminum-clad substrate and production process of aluminum-clad substrate Technical Field

[0001] The present application relates to the field of aluminum-clad substrates, and in particular to an aluminum-clad substrate and a production process for an aluminum-clad substrate. Background Art

[0002] The substrate is the basic material for making circuit boards. Generally, the substrate is a copper-clad laminate. The required circuit pattern is obtained by performing hole processing, chemical copper plating and other processing methods on the substrate.

[0003] There are many types and structures of substrates depending on their purpose. Currently, the most commonly used ones are ordinary substrates. The base material of ordinary substrates is insulating material, which has great advantages in terms of manufacturing process and design flexibility, and has low cost.

[0004] However, since ordinary substrates are made of insulating materials, their heat dissipation performance and stability during use are poor. In addition, ordinary substrates use halogen flame retardants, which produce toxic gases when burned at high temperatures, posing a great threat to the human body and the environment. Summary of the Invention

[0005] In order to improve the problems existing in the above-mentioned technologies, the present application provides an aluminum-clad substrate and a production process of the aluminum-clad substrate.

[0006] In a first aspect, the present application provides an aluminum-clad substrate, which adopts the following technical solution:

[0007] An aluminum-clad substrate comprises a substrate comprising at least two layers of glass cloth, adjacent glass cloths being fixedly connected by adhesive, and the substrate being covered with aluminum foil.

[0008] By adopting the above technical solution, the aluminum foil on the substrate is used as a flame retardant material, which can improve the flame retardant performance of the aluminum-clad substrate and is not easy to produce a large amount of harmful substances during combustion; at the same time, the thermal conductivity of metal aluminum is good, thereby improving the heat dissipation performance of the substrate.

[0009] In a second aspect, the present application provides a production process for an aluminum-clad substrate, which adopts the following technical solution:

[0010] A production process for an aluminum-clad substrate comprises the following steps:

[0011] S1: Using glue, multiple layers of glass cloth are bonded together to form a substrate;

[0012] S2: Roll up the substrate and cut it into pieces using a cutting machine;

[0013] S3: layout the cut substrates;

[0014] S4: pressing aluminum foil onto each substrate to form an aluminum-clad substrate;

[0015] S5: cutting the aluminum-clad substrate using a cutting machine;

[0016] S6: Using a controller on the workbench to control the testing mechanism, the bending strength of each aluminum-clad substrate is tested. If the test meets the performance requirements, the aluminum-clad substrate is packaged; if it does not meet the performance requirements, it is discarded.

[0017] By adopting the above technical solution, aluminum-clad substrates can be produced in large quantities and the performance of the aluminum-clad substrates can be ensured to meet the requirements.

[0018] Optionally, the specific steps of step S6 are:

[0019] S6.1: Use two measuring assemblies in the test setup to measure the spacing between two opposite edges of the aluminum-clad substrate.

[0020] S6.2: Use the moving assembly in the test mechanism to grab the aluminum-clad substrate and move it to the bending test assembly for testing.

[0021] By adopting the above technical solution, the bending strength of the aluminum-clad substrate can be tested, thereby ensuring that the produced aluminum-clad substrate meets the requirements.

[0022] Optionally, the measuring component includes a laser rangefinder, two positioning plates and two first electric push rods, the two positioning plates correspond one-to-one to the two first electric push rods, the positioning plates are slidably set on the workbench, the first electric push rods are installed on the workbench, and the output shaft of the first electric push rod is fixed to the positioning plate, the first electric push rod is connected to the controller, the laser rangefinder is installed on any of the positioning plates, and the laser rangefinder is connected to the controller.

[0023] By adopting the above technical solution, during the test, the aluminum-clad substrate is placed between the four positioning plates, and then the first electric push rod is started to synchronously push the positioning plates toward the aluminum-clad substrate until the four positioning plates clamp the aluminum-clad substrate; then a laser rangefinder is used to measure the distance between the two positioning plates in a single measurement component, thereby obtaining the distance between the two relative edges of the aluminum-clad substrate, so that the subsequent bending test component can be adjusted and tested according to the measurement data.

[0024] Optionally, the moving component includes a moving part, a rotating part and a suction part, the moving part includes a support plate, a moving shell and a second electric push rod, the support plate is fixed to the workbench, and a slide groove is opened through the support plate, the moving shell is slidably set in the slide groove, the rotating part and the suction part are both installed on the moving shell, and the rotating part is connected to the suction part, the second electric push rod is installed in the slide groove, and the output shaft of the second electric push rod is connected to the moving shell, and the second electric push rod is connected to the controller.

[0025] By adopting the above technical solution, the suction part can suck the aluminum-clad substrate and start the second electric push rod to push the movable shell to move in the slide slot, that is, push the aluminum-clad substrate to the bending test assembly, thereby facilitating testing.

[0026] Optionally, the rotating part includes a stepping motor, the stepping motor is installed in the movable shell, the stepping motor is connected to the suction part, and the stepping motor is connected to the controller.

[0027] By adopting the above technical solution, the stepping motor is started to drive the rotating seat to rotate, so that the angle of the aluminum-clad substrate can be adjusted.

[0028] Optionally, the suction part includes a rotating seat, a bellows, a drive motor, blades, a suction plate, a fixed net and a third electric push rod. The rotating seat is rotatably installed in the movable shell, a mounting slot is provided on the rotating seat, the drive motor is installed in the mounting slot, and the output shaft of the drive motor is fixed to the blade, the fixed net is fixed in the mounting slot, the output shaft of the stepper motor is fixedly connected to the fixed net, one end of the bellows is connected to the mounting slot, and the other end is fixed to the suction plate, and a suction hole connected to the bellows is provided on the suction plate, the third electric push rod is installed on the rotating seat, and the output shaft of the third electric push rod is fixed to the suction plate, and the third electric push rod and the drive motor are both connected to the controller.

[0029] By adopting the above technical solution, the third electric push rod is started to push the suction plate closer to the aluminum-clad substrate until the sealing gasket is pressed against the aluminum-clad substrate; then the drive motor is started to drive the blade to rotate, thereby drawing air in the suction hole outward to achieve a negative pressure effect, thereby sucking up the aluminum-clad substrate; then the second electric push rod can be started to push the movable shell to move, that is, push the aluminum-clad substrate to the bending test assembly for bending strength testing.

[0030] Optionally, the suction part further includes a sealing gasket, and the sealing gasket is fixed on the suction plate.

[0031] By adopting the above technical solution, the sealing gasket can improve the sealing performance when the suction plate contacts the aluminum-clad substrate.

[0032] Optionally, the bending test assembly includes an adjustment part and a bending test part, the adjustment part includes a screw rod, an adjustment motor and a slider, a seating groove is opened on the support plate, the slider is slidably set in the seating groove, the screw rod is rotatably installed in the seating groove, and the screw rod passes through the slider and is threadedly engaged, the adjustment motor is installed on the support plate, and the output shaft of the adjustment motor is coaxially fixed with the screw rod, the adjustment motor is connected to the controller, and the bending test part is arranged between the slider and the workbench.

[0033] By adopting the above technical solution, according to the previously measured distance between two sets of opposite sides of the aluminum-clad substrate, the control adjustment motor is started to drive the screw to rotate, thereby driving the slider to move until the distance between the two sliders is consistent with the measured data, thereby facilitating the bending test part to perform testing.

[0034] Optionally, the bending test part includes a lower pressure plate, a fourth electric push rod, a plastic plate, an arc plate, a support rod, a bending plate and a fifth electric push rod, the fourth electric push rod is installed on the slider, and the output shaft of the fourth electric push rod is hinged to the lower pressure plate, one end of the support rod is fixed to the workbench, and the other end is fixed to the arc plate, the plastic plate is installed on the arc plate, the bending plate is fixed on the plastic plate, the fifth electric push rod is installed on the workbench, and the output shaft of the fifth electric push rod is fixed to the bending plate, and the fourth electric push rod and the fifth electric push rod are both connected to the controller.

[0035] By adopting the above technical solution, after the aluminum-clad substrate is sucked, the aluminum-clad substrate is moved above the plastic plate, and then the third electric push rod is started to push the suction plate downward until the aluminum-clad substrate abuts the plastic plate; then the fourth electric push rod is started to push the lower pressure plate downward until it contacts the aluminum-clad substrate, and the aluminum-clad substrate is pressed down until the degree of bending is completely consistent with that of the plastic plate. If the aluminum-clad substrate is not damaged, it meets the performance requirements.

[0036] In summary, this application has at least one of the following beneficial effects:

[0037] 1. Aluminum foil on the substrate is used as a flame retardant material, which can improve the flame retardant performance of the aluminum-clad substrate and is not easy to produce a large amount of harmful substances when burned; at the same time, the thermal conductivity of metal aluminum is good, which can improve the heat dissipation performance of the substrate.

[0038] 2. The sealing gasket can improve the sealing performance when the pickup plate contacts the aluminum-clad substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic structural diagram according to Embodiment 1 of the present application;

[0040] FIG2 is a schematic structural diagram according to Example 2 of the present application;

[0041] FIG3 is a schematic top view of FIG2 ;

[0042] FIG4 is a schematic cross-sectional view taken along the cutting line AA in FIG3 ;

[0043] FIG. 5 is a schematic partial enlarged view of portion B in FIG. 4 .

[0044] In the figure: 1. substrate; 11. aluminum foil; 2. workbench; 3. measuring component; 31. laser rangefinder; 32. positioning plate; 33. first electric push rod; 4. moving part; 41. support plate; 411. slide groove; 412. placement groove; 42. moving shell; 43. second electric push rod; 5. rotating part; 51. stepper motor; 6. suction part; 61. rotating seat; 62. bellows; 63. driving motor; 64. blade; 65. suction plate; 651. suction hole; 66. fixing net; 67. third electric push rod; 68. sealing gasket; 7. adjusting part; 71. screw rod; 72. adjusting motor; 73. slider; 8. bending test part; 81. lower pressure plate; 82. fourth electric push rod; 83. plastic plate; 84. curved plate; 85. support rod; 86. bending plate; 87. fifth electric push rod. DETAILED DESCRIPTION

[0045] Embodiment 1 of the present application provides an aluminum-clad substrate.

[0046] Referring to Figure 1, an aluminum-clad substrate includes a substrate 1. In the embodiment of the present application, substrate 1 comprises at least two layers of glass cloth, with adjacent layers of glass cloth fixedly connected by an adhesive. The surface of substrate 1 is covered with aluminum foil 11. During production, aluminum foil 11 is pressed and laminated onto substrate 1, forming the aluminum-clad substrate. The aluminum foil 11 on substrate 1 acts as a flame-retardant material, enhancing the flame retardancy of the aluminum-clad substrate and reducing the production of harmful substances during combustion. Furthermore, the excellent thermal conductivity of aluminum metal improves the heat dissipation performance of substrate 1.

[0047] The working principle of the first embodiment is as follows: During production, the aluminum foil 11 is pressed and covered on the substrate 1 to form an aluminum-clad substrate.

[0048] A second embodiment of the present application provides a production process for an aluminum-clad substrate.

[0049] A production process for an aluminum-clad substrate comprises the following steps:

[0050] S1: Using glue to bond multiple layers of glass cloth to form a substrate 1;

[0051] S2: rolling up the substrate 1 and cutting the substrate 1 into pieces using a cutting machine;

[0052] S3: Arranging the cut substrates 1;

[0053] S4: pressing the aluminum foil 11 onto each substrate 1 to form an aluminum-clad substrate;

[0054] S5: cutting the aluminum-clad substrate using a cutting machine;

[0055] S6: The controller on the workbench 2 is used to control the testing mechanism to test the bending strength of each aluminum-clad substrate. If the test meets the performance requirements, the aluminum-clad substrate is packaged; if not, it is discarded.

[0056] The specific steps of step S6 are:

[0057] S6.1: Use two measuring assemblies 3 in the test mechanism to measure the distance between two opposite edges of the aluminum-clad substrate.

[0058] S6.2: Use the moving assembly in the test mechanism to grab the aluminum-clad substrate and move it to the bending test assembly for testing.

[0059] Referring to Figure 2, in the embodiment of the present application, the two measuring components 3 are arranged in an approximately cross shape, and each measuring component 3 includes a laser rangefinder 31, two positioning plates 32 and two first electric push rods 33. In the embodiment of the present application, the two positioning plates 32 in a single measuring component 3 correspond one to one with the two first electric push rods 33. The positioning plates 32 are arranged on the workbench 2, and the two positioning plates 32 in the single measuring component 3 can slide relative to each other, that is, move closer to or away from each other. The laser rangefinder 31 is installed on any one of the positioning plates 32 in the single measuring component 3, and the laser rangefinder 31 is connected to the controller. The laser rangefinder 31 is used to measure the distance between the two positioning plates 32 in the single measuring component 3, thereby obtaining the distance between the two relative edges of the aluminum-clad substrate.

[0060] As shown in Figure 2, a first electric push rod 33 is mounted on the workbench 2, and its output shaft is fixedly connected to the corresponding positioning plate 32. The first electric push rod 33 is also connected to the controller. During testing, the aluminum-clad substrate is first placed between the four positioning plates 32. The first electric push rod 33 is then activated to synchronously push the positioning plates 32 toward the aluminum-clad substrate until the four positioning plates 32 clamp the aluminum-clad substrate. The laser rangefinder 31 is then used to measure the distance between two positioning plates 32 in a single measurement assembly 3, thereby determining the distance between two opposing edges of the aluminum-clad substrate. This distance is then fed back to the controller, allowing subsequent bending test assemblies to adjust and test according to the measured data.

[0061] 3 and 4 , the moving assembly includes a moving portion 4 , a rotating portion 5 and a suction portion 6 .

[0062] Referring to Figure 4 , the movable portion 4 includes a support plate 41, a movable housing 42, and a second electric push rod 43. The support plate 41 is fixed to the workbench 2 and is located above the measuring assembly 3. A slide groove 411 is defined along the top wall of the support plate 41 along its length. The movable housing 42 is slidably mounted within the slide groove 411 and is movable along the length of the slide groove 411. In the embodiment of the present application, both the top and bottom of the movable housing 42 are open.

[0063] Referring to Figure 4, the second electric push rod 43 is installed in the slide groove 411 and is arranged horizontally. The output shaft of the second electric push rod 43 is fixedly connected to the movable shell 42, and the second electric push rod 43 is connected to the controller. When the second electric push rod 43 is started, the movable shell 42 can be pushed to move in the slide groove 411.

[0064] Referring to Figure 5 , the suction unit 6 includes a rotating base 61, a bellows 62, a drive motor 63, blades 64, a suction plate 65, a fixed net 66, and a third electric push rod 67. The rotating base 61 is rotatably mounted within the movable housing 42 via a bearing. A mounting slot is defined in the top wall of the rotating base 61, into which the drive motor 63 is mounted. The output shaft of the drive motor 63 is fixed to the blades 64, and the drive motor 63 is connected to a controller. A fixed net 66 is fixedly mounted at the opening of the mounting slot to prevent dust from entering the mounting slot.

[0065] Referring to Figure 5 , one end of the bellows 62 is connected to the mounting slot, and the other end is fixedly connected to the suction plate 65. After the four positioning plates 32 clamp the aluminum-clad substrate, the suction plate 65 is aligned with the center of the aluminum-clad substrate. A suction hole 651 is defined in the bottom wall of the suction plate 65, and the bellows 62 is connected to this hole. A third electric push rod 67 is mounted on the bottom wall of the rotating base 61, and its output shaft is fixedly connected to the top wall of the suction plate 65. The third electric push rod 67 is connected to a controller, and activation of the third electric push rod 67 moves the suction plate 65 up and down.

[0066] Referring to Figure 5 , the suction portion 6 further includes a sealing gasket 68 secured to the bottom wall of the suction plate 65 . This gasket is used to improve the seal between the suction plate 65 and the aluminum-clad substrate. After the measurement is completed, the third electric push rod 67 is activated to push the suction plate 65 toward the aluminum-clad substrate until the sealing gasket 68 abuts against it. The drive motor 63 is then activated to rotate the blade 64, thereby drawing air outward from the suction hole 651 to create a negative pressure effect, thereby lifting the aluminum-clad substrate. The second electric push rod 43 is then activated to move the movable housing 42, thereby moving the aluminum-clad substrate to the bending test assembly for a bending strength test.

[0067] Referring to Figure 4 , the rotating unit 5 includes a stepper motor 51, which is connected to a controller and mounted within the movable housing 42. The output shaft of the stepper motor 51 is fixedly connected to the fixed net 66. The stepper motor 51 is activated to drive the rotating base 61, thereby adjusting the angle of the aluminum-clad substrate to facilitate bending strength testing.

[0068] 2 and 4 , the bending test assembly includes an adjustment portion 7 and a bending test portion 8 .

[0069] Referring to FIG. 2 , two adjustment units 7 are provided in the embodiment of the present application. Each adjustment unit 7 includes a screw 71, an adjustment motor 72, and a slider 73. A mounting groove 412 is formed on the top wall of the support plate 41 along the width direction of the support plate 41. The slider 73 is slidably mounted in the mounting groove 412 and slides along the length direction of the mounting groove 412. The screw 71 is rotatably mounted in the mounting groove 412 and is arranged horizontally. The screw 71 passes through the slider 73 and is threadedly engaged with the slider 73.

[0070] As shown in Figure 2 , an adjustment motor 72 is mounted on support plate 41, with its output shaft coaxially fixed to screw 71. This motor is connected to a controller. Based on the previously measured distance between two opposing sides of the aluminum-clad substrate, the controller activates adjustment motor 72, driving screw 71 to rotate, thereby moving slider 73 until the distance between sliders 73 matches the measured distance, facilitating testing by bend tester 8 .

[0071] Referring to Figures 2 and 4 , the bending test section 8 includes a lower pressing plate 81, a fourth electric push rod 82, a plastic plate 83, a curved plate 84, a support rod 85, a bending plate 86, and a fifth electric push rod 87. The fourth electric push rod 82 is mounted on the sliding bottom wall, and its output shaft is hingedly connected to the lower pressing plate 81. The fourth electric push rod 82 is connected to a controller. One end of the support rod 85 is fixed to the top wall of the workbench 2, and the other end is fixed to the curved plate 84. The curved plate 84 bends downward toward both ends of the workbench 2 along the width direction.

[0072] Referring to Figures 2 and 4 , plastic plate 83 is mounted on the top wall of curved plate 84. In the embodiment of the present application, plastic plate 83 is relatively flexible, and its ends along the width of workbench 2 are also bent downward. This bending indicates that the aluminum-clad substrate meets the required standards, but the degree of bending is less than that of curved plate 84. After the aluminum-clad substrate is sucked in, it is moved above plastic plate 83, and then the third electric push rod 67 is activated to push the suction plate 65 downward until the aluminum-clad substrate abuts the plastic plate 83. The fourth electric push rod 82 is then activated to push the lower pressure plate 81 downward until it contacts the aluminum-clad substrate and presses it downward until the degree of bending is exactly the same as that of plastic plate 83. If the aluminum-clad substrate is not damaged, it meets the performance requirements.

[0073] After the test is complete, the fourth electric push rod 82 is activated to separate the lower pressure plate 81 from the aluminum-clad substrate. The stepper motor 51 is then activated to drive the rotating base 61 to rotate 90°, which in turn rotates the aluminum-clad substrate 90°. The adjustment motor 72 is then activated to adjust the spacing between the two sliders 73. The fourth electric push rod 82 is then activated again to push the lower pressure plate 81 downward until it contacts the aluminum-clad substrate and presses it downward until the degree of bending is exactly the same as that of the plastic plate 83. If the aluminum-clad substrate is not damaged, it meets the performance requirements. This completes the bending strength test of the aluminum-clad substrate in both the warp and weft directions.

[0074] Referring to Figures 2 and 4 , in this embodiment of the present application, two bending plates 86 and five electric push rods 87 are provided, each corresponding to the other. The bending plate 86 is fixed to the bottom wall of the plastic plate 83, and the fifth electric push rod 87 is mounted on the workbench 2. The output shaft of the fifth electric push rod 87 is hinged to the bending plate 86, and the fifth electric push rod 87 is connected to the controller. The fifth electric push rod 87 is tilted. When facing substrates 1 of different materials, the fifth electric push rod 87 can be activated to pull the bending plate 86, thereby pulling the plastic plate 83 to different degrees of bending, thereby improving the applicability of the entire testing mechanism.

[0075] The working principle of the second embodiment is as follows: during testing, the aluminum-clad substrate is first placed between the four positioning plates 32, and then the first electric push rod 33 is started to synchronously push the positioning plates 32 toward the aluminum-clad substrate until the four positioning plates 32 clamp the aluminum-clad substrate; then the laser rangefinder 31 is used to measure the distance between the two positioning plates 32 in a single measuring component 3, thereby obtaining the distance between the two opposite sides of the aluminum-clad substrate.

[0076] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An aluminum-clad substrate, characterized in that: The invention comprises a substrate (1), wherein the substrate (1) comprises at least two layers of glass cloth, adjacent glass cloths are fixedly connected by an adhesive, and the substrate (1) is covered with aluminum foil (11).

2. A production process for producing the aluminum-clad substrate according to claim 1, characterized in that: The following steps are involved: S1: bonding multiple layers of glass cloth using glue to form a substrate (1); S2: rolling up the substrate (1) and cutting the substrate (1) into pieces using a cutting machine; S3: Layout the cut substrates (1); S4: pressing an aluminum foil (11) onto each substrate (1) to form an aluminum-clad substrate; S5: cutting the aluminum-clad substrate using a cutting machine; S6: Using a controller provided on the workbench (2) to control the testing mechanism to test the bending strength of each aluminum-clad substrate, and if the test meets the performance requirements, the aluminum-clad substrate is packaged; If it does not meet the performance requirements, it will be discarded.

3. The production process of the aluminum-clad substrate according to claim 2, characterized in that: The specific steps of step S6 are: S6.1: Use two measuring components (3) in the test mechanism to measure the distance between two opposite sides of the aluminum-clad substrate respectively; S6.2: Use the moving assembly in the test mechanism to grab the aluminum-clad substrate and move it to the bending test assembly for testing.

4. The production process of the aluminum-clad substrate according to claim 3, characterized in that: The measuring assembly (3) comprises a laser rangefinder (31), two positioning plates (32) and two first electric push rods (33), wherein the two positioning plates (32) correspond to the two first electric push rods (33) in a one-to-one manner, the positioning plates (32) are slidably arranged on the workbench (2), the first electric push rods (33) are mounted on the workbench (2), and the output shafts of the first electric push rods (33) are fixed to the positioning plates (32), the first electric push rods (33) are connected to the controller, the laser rangefinder (31) is mounted on any of the positioning plates (32), and the laser rangefinder (31) is connected to the controller.

5. The production process of the aluminum-clad substrate according to claim 3, characterized in that: The moving assembly includes a moving part (4), a rotating part (5) and a suction part (6); the moving part (4) includes a support plate (41), a moving shell (42) and a second electric push rod (43); the support plate (41) is fixed on the workbench (2), and a slide groove (411) is provided through the support plate (41); the moving shell (42) is slidably arranged in the slide groove (411); the rotating part (5) and the suction part (6) are both installed on the moving shell (42), and the rotating part (5) is connected to the suction part (6); the second electric push rod (43) is installed in the slide groove (411), and the output shaft of the second electric push rod (43) is connected to the moving shell (42); the second electric push rod (43) is connected to the controller.

6. The production process of the aluminum-clad substrate according to claim 5, characterized in that: The rotating part (5) includes a stepping motor (51), the stepping motor (51) is installed in the moving shell (42), the stepping motor (51) is connected to the suction part (6), and the stepping motor (51) is connected to the controller.

7. The production process of the aluminum-clad substrate according to claim 6, characterized in that: The suction part (6) includes a rotating seat (61), a bellows (62), a driving motor (63), a blade (64), a suction plate (65), a fixed net (66) and a third electric push rod (67). The rotating seat (61) is rotatably mounted in the movable shell (42). A mounting groove is provided on the rotating seat (61). The driving motor (63) is mounted in the mounting groove, and the output shaft of the driving motor (63) is fixed to the blade (64). The fixed net (66) is fixed in the mounting groove. The stepping motor ( The output shaft of the third electric push rod (67) is fixedly connected to the fixed net (66), one end of the bellows (62) is connected to the mounting groove, and the other end is fixed to the suction plate (65), and the suction plate (65) is provided with a suction hole (651) connected to the bellows (62), the third electric push rod (67) is installed on the rotating seat (61), and the output shaft of the third electric push rod (67) is fixed to the suction plate (65), and the third electric push rod (67) and the driving motor (63) are both connected to the controller.

8. The production process of the aluminum-clad substrate according to claim 3, characterized in that: The suction portion (6) further comprises a sealing gasket (68), and the sealing gasket (68) is fixed on the suction plate (65).

9. The production process of the aluminum-clad substrate according to claim 3, characterized in that: The bending test assembly comprises an adjusting portion (7) and a bending test portion (8), wherein the adjusting portion (7) comprises a screw rod (71), an adjusting motor (72) and a slider (73), a placement groove (412) is provided on the support plate (41), the slider (73) is slidably arranged in the placement groove (412), the screw rod (71) is rotatably installed in the placement groove (412), and the screw rod (71) passes through the slider (73) and is threadedly engaged with the slider (73), the adjusting motor (72) is installed on the support plate (41), and the output shaft of the adjusting motor (72) is coaxially fixed with the screw rod (71), the adjusting motor (72) is connected to the controller, and the bending test portion (8) is arranged between the slider (73) and the workbench (2).

10. The production process of the aluminum-clad substrate according to claim 9, characterized in that: The bending test part (8) includes a lower pressure plate (81), a fourth electric push rod (82), a plastic plate (83), an arc plate (84), a support rod (85), a bending plate (86) and a fifth electric push rod (87), wherein the fourth electric push rod (82) is mounted on the slider (73), and the output shaft of the fourth electric push rod (82) is hinged to the lower pressure plate (81), one end of the support rod (85) is fixed to the workbench (2), and the other end is fixed to the arc plate (84), the plastic plate (83) is mounted on the arc plate (84), the bending plate (86) is fixed to the plastic plate (83), the fifth electric push rod (87) is mounted on the workbench (2), and the output shaft of the fifth electric push rod (87) is hinged to the bending plate (86), and the fourth electric push rod (82) and the fifth electric push rod (87) are both connected to the controller.

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