Equipment and method for testing performance of copper-clad plate

Abstract

The invention relates to the technical field of copper-clad plates, in particular to a copper-clad plate performance test device and method, and the device comprises a test platform, a mobile platform, a locking part, a mounting assembly and a locking assembly. The corresponding number of copy groups can be selected according to the size of the copper-clad plate, and the copy groups are matched with the middle original group to adapt to stripping tests of copper foils with different sizes, so that the open ends of the copper foils can be uniformly stripped, and the problem that the copper foils are damaged is avoided. The copper foil is evenly clamped in the mode that the copying set and the original set are close to each other in the early stage and elastically clamp the copper foil and the copying set is transversely moved according to the size of the copper foil in the later stage, the convenience degree in the copper foil clamping process is improved, and it is not needed to repeatedly clamp the copper foil area by area when the copper foil is long.

Description

Technical Field

[0001] The present invention relates to the technical field of copper clad laminates, and in particular to a copper clad laminate performance testing device and method. Background Art

[0002] Copper clad laminate is the basic material for making printed circuit boards (PCBs). It is mainly composed of substrate, copper foil and adhesive. Copper foil is one or two thin layers of copper attached to the substrate to form circuit patterns.

[0003] During the processing of copper clad laminates, the peel strength of the copper clad laminates needs to be tested to ensure the reliability of the circuit and evaluate the material performance. In the current peel strength test, a sample of a specific size is first cut from the copper clad laminate to be tested, and the copper foil on the sample is clamped and locked and peeled off at a uniform speed. At the same time, the numerical changes in the applied force during the peeling process are recorded, and the corresponding peel strength is obtained based on the obtained data.

[0004] The current peel strength testing process has the following problems: peel testing on samples of specific sizes cannot directly reflect the peel strength of the actual copper clad laminate, and currently only cutting samples are tested, which is difficult to meet the testing needs.

[0005] Secondly, during testing, if the copper foil of the copper clad laminate is only clamped at a single point, it is easy to cause damage to the copper foil during the peeling process. Therefore, multiple clamps are usually used to clamp the copper foil at multiple locations (i.e., multiple clamping points) before peeling. The steps of clamping the copper foil and locking the clamp need to be repeated at each clamping point. The steps are cumbersome and the overall efficiency is poor. In addition, the overall strength and stability are poor when each clamping point is clamped separately before peeling. Summary of the Invention

[0006] Based on this, it is necessary to provide a copper clad laminate performance testing device to solve the above-mentioned problems of the prior art.

[0007] The present application provides a copper clad laminate performance testing device, comprising: a test platform, on which are provided two fixed brackets distributed front and back for fixing the copper clad laminate, a mobile platform that slides back and forth is provided on the test platform, a hydraulic cylinder is provided on the mobile platform, a mounting rod is fixedly provided on the telescopic section of the hydraulic cylinder, and a sensor for reflecting the magnitude of the tensile force is sleeved on the mounting rod.

[0008] The mounting rod is provided with a clamping mechanism for clamping the copper foil, and the clamping mechanism includes a center frame. The lower end surface of the mounting rod is fixedly provided with the center frame, and the lower end surface of the center frame is fixedly provided with an original group for clamping the copper foil. A plurality of detachable copy groups are provided on the left and right sides of the original group, and the original group is identical to the copy group.

[0009] The original group includes a rear splint and a front splint arranged in sequence from back to front. The rear splint in the original group is fixedly connected to the center frame, and the rear splint and the front splint are elastically hingedly connected. The left and right end surfaces of the rear splint and the front splint in the original group are both provided with mounting beams, and the mounting beams are provided with a locking part for preliminarily locking the position of the replication group.

[0010] A mounting assembly is commonly provided between the central frame and all the replication groups, and the mounting assembly includes a bracket for increasing the overall strength.

[0011] The original group is provided with a locking assembly for rigidly locking all the front and rear splints and forming a rigid triangular frame relative to the brackets on the left and right sides.

[0012] According to an advantageous embodiment, a pressure spring is fixedly provided between the front and rear splints, and a limit strip for limiting the rotation angle of the front splint is fixedly provided on the front end surface of the horizontal section of the rear splint.

[0013] According to a favorable embodiment, the locking portion includes a mounting groove, and the rear splint and the front splint in the replication group are provided with mounting grooves for installing them to the corresponding mounting beams, and the lower end surface of the mounting beam is provided with a plurality of locking grooves equidistantly arranged from left to right, and the lower side wall of the mounting groove is provided with a plurality of locking pins equidistantly arranged from left to right and sliding up and down, and a reset spring is fixed between the locking pins and the corresponding rear splint or the corresponding front splint.

[0014] The inner walls on both sides of the locking groove are chamfered, and the maximum height of the locking pin after moving upward is lower than the uppermost side of the chamfered area.

[0015] According to a favorable embodiment, the mounting assembly further comprises a sleeve groove, the bracket is rotatably arranged on the upper end surface of the front splint or the rear splint, the two brackets on the same replication group are respectively located on the front and rear sides of the center frame, a waist-shaped sleeve groove is provided on the bracket, a bolt 1 is installed on the center frame for sliding through it front and back, a nut is threaded on the bolt 1, and all the brackets are fixed by tightening the nut to form multiple rigid triangular frames.

[0016] According to a favorable embodiment, compensation rings are fixedly provided on both front and rear end surfaces of the center frame, the junction areas of the left and right opposite brackets fit together, the junction areas of the left and right adjacent brackets on the same side of the center frame fit together, and the bracket closest to the compensation ring fits together.

[0017] According to a favorable embodiment, the locking assembly includes bolt two, and the front end surface of the vertical section of the rear splint is fixedly provided with a bolt two whose axis extends from the back to the front, and the vertical section of the front splint is provided with a waist-shaped through groove; the bolt two corresponding to the original group is provided with a locking frame, and the left and right sides of the locking frame are U-shaped sections, and the bolt two corresponding to the copy group is located in the corresponding U-shaped section, and the leftmost bolt two and the rightmost bolt two are also threaded with nuts.

[0018] According to a favorable embodiment, the locking assembly includes a threaded column, and the rear end face of the vertical section of the rear splint in the original group is rotatably provided with a threaded column with an axis extending from front to rear, and a pressure ring is provided on the vertical section of the corresponding rear splint for sliding back and forth, and the pressure ring is sleeved on the threaded column and the two are threadedly matched.

[0019] A locking frame is movably mounted on the threaded column. The locking frame is divided into longitudinal sections on both sides and a V-shaped section in the middle. The V-shaped section is located at the rear side of the pressure ring, and the front end surface of the longitudinal section is provided with a fitting block located at the front side of the locking frame.

[0020] According to a favorable embodiment, the fitting block is rotatably mounted on the front end face of the longitudinal section of the locking frame via a rotating column, the height of the longitudinal section of the locking frame is smaller than the height of the U-shaped section on the locking frame, and a placement groove with an opening facing downward is provided on the V-shaped section of the locking frame.

[0021] In summary, the present invention has at least one of the following beneficial effects: in the present invention, a corresponding number of replica groups are selected according to the size of the copper clad laminate, and the original group in the middle is used to adapt to the peeling test of copper foils of different sizes, ensuring that the beginning of the copper foil can be peeled evenly, thereby avoiding the problem of copper foil damage.

[0022] Secondly, by bringing the replica group and the original group close together and elastically clamping the copper foil in the early stage, and then later moving the replica group horizontally according to the size of the copper foil to uniformly clamp the copper foil, the convenience of clamping the copper foil is improved, and the tedious steps of repeating the clamping action area by area when the copper foil is long are eliminated.

[0023] And through the locking assembly and the bracket, they are locked separately, so that all the front splints and the corresponding rear splints are rigidly locked, and multiple rigid triangular frames are formed on the left and right sides to improve the overall stability and clamping strength, avoiding the tedious operations of repeatedly clamping, placing the copper foil and locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a copper clad laminate performance testing device provided according to an embodiment of the present invention is shown.

[0026] Figure 2 A schematic diagram of the three-dimensional structure between the mounting beam, the front clamping plate and the rear clamping plate provided according to an embodiment of the present invention is shown.

[0027] Figure 3 A side view of a mounting beam, a front plate and a rear plate according to an embodiment of the present invention is shown.

[0028] Figure 4 A schematic diagram of an exploded three-dimensional structure between a bracket, a locking frame and a mounting beam provided according to an embodiment of the present invention is shown.

[0029] Figure 5 A schematic diagram of a partially cutaway three-dimensional structure among a center frame, a locking portion, and a mounting beam provided according to an embodiment of the present invention is shown.

[0030] Figure 6 The embodiment of the present invention provides Figure 5 Enlarged view of point A in the middle.

[0031] Figure 7 A schematic diagram of the three-dimensional structure among the locking frame, the threaded column and the locking rack provided according to an embodiment of the present invention is shown.

[0032] Figure 8 A schematic diagram of an exploded three-dimensional structure between a locking frame, a locking rack and a threaded column provided according to an embodiment of the present invention is shown.

[0033] Among them, the above-mentioned drawings include the following figure marks: 1. test platform; 2. fixed bracket; 3. mobile platform; 4. mounting rod; 5. sensor; 6. clamping mechanism; 60. center frame; 61. original group; 610. rear splint; 611. front splint; 612. pressure spring; 613. limit strip; 62. copy group; 63. mounting beam; 64. locking part; 641. locking groove; 642. locking pin; 643. reset spring; 65. mounting assembly; 650. bracket; 651. sleeve groove; 652. bolt one; 653. nut; 654. compensation ring; 66. locking assembly; 660. bolt two; 661. through groove; 662. locking frame; 663. threaded column; 664. pressure ring; 665. locking frame; 666. fitting block; 667. rotating column; 668. placement groove. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figure 1As shown, a copper clad laminate performance testing device includes: a test platform 1, on which two fixed brackets 2 distributed front and back and used to fix the copper clad laminate are provided, and the fixed brackets 2 are installed on the test platform 1 by means of bolt locking. A movable platform 3 that slides back and forth is provided on the test platform 1, and the movable platform 3 is driven by an external motor to move back and forth. A hydraulic cylinder is provided on the movable platform 3, and a mounting rod 4 is fixedly provided on the telescopic section of the hydraulic cylinder, and a sensor 5 for reflecting the magnitude of the tensile force is sleeved on the mounting rod 4.

[0036] like Figure 1 and Figure 2 As shown, the mounting rod 4 is provided with a clamping mechanism 6 for clamping the copper foil. The mounting rod 4 drives the clamping mechanism 6 and the copper foil to move upward synchronously, thereby peeling off the copper foil. The peeling strength of the copper clad laminate is reflected according to the data of the sensor 5. The clamping mechanism 6 includes a center frame 60. The center frame 60 is fixedly provided on the lower end surface of the mounting rod 4. The lower end surface of the center frame 60 is fixedly provided with an original group 61 for clamping the copper foil. A plurality of detachable copy groups 62 are provided on the left and right sides of the original group 61. The original group 61 and the copy group 62 have the same structure.

[0037] like Figure 1 、 Figure 2 and Figure 5 As shown, the original group 61 includes a rear splint 610 and a front splint 611 arranged in sequence from back to front, the rear splint 610 in the original group 61 is fixedly connected to the center frame 60, and the rear splint 610 and the front splint 611 are elastically hingedly connected; the left and right end surfaces of the rear splint 610 and the front splint 611 in the original group 61 are both provided with mounting beams 63, and the mounting beams 63 are provided with a locking portion 64 for preliminarily locking the position of the copy group 62.

[0038] like Figure 1 and Figure 2 As shown, a mounting assembly 65 is provided between the central frame 60 and all the replication groups 62 . The mounting assembly 65 includes a bracket 650 for increasing the overall strength.

[0039] like Figure 1 and Figure 2 As shown, the original group 61 is provided with a locking assembly 66 for rigidly locking all the front clamping plates 611 and the rear clamping plates 610 and forming a rigid triangular frame relative to the left and right sides of the bracket 650.

[0040] During operation, the copper foil on one side of the copper clad laminate is manually peeled off as a starting point, and then the copper clad laminate is placed on the test platform 1 and locked and clamped by the fixing bracket 2, and then the peel strength test is performed.

[0041] Select the corresponding number of replica groups 62 according to the size of the copper clad laminate, and assemble the replica groups 62 to the corresponding mounting beams 63. Initially, the adjacent replica groups 62 and the replica groups 62 and the original group 61 are tightly attached to each other, so that the beginning of the copper foil can be manually clamped between the rear clamping plate 610 and the front clamping plate 611. Then, manually press the front clamping plate 611 in the original group 61 (so that the lower end of the front clamping plate 611 is away from the rear clamping plate 610), and place the beginning of the copper foil between the front clamping plate 611 and the rear clamping plate 610, and release the front clamping plate 611. At this time, the front clamping plate 611 and the rear clamping plate 610 elastically clamp the copper foil, and then move each clamping plate laterally according to the size of the copper foil. A replication group 62 is formed so that the replication group 62 is evenly distributed on the beginning of the copper foil. During the lateral movement, the front splint 611 and the rear splint 610 in the replication group 62 maintain an elastic clamping effect on the beginning of the copper foil (but the clamping area changes adaptively with the lateral movement). Then, the corresponding locking method is selected according to the number of replication groups 62 (the size of the copper clad laminate) and the corresponding locking component 66 is used to lock it. At the same time, the bracket 650 in the mounting component 65 is installed on the center frame 60 for locking. Finally, the front splint 611 and the corresponding rear splint 610 are rigidly locked, and corresponding rigid triangular frames are formed on the left and right sides to improve the overall stability and clamping strength.

[0042] Afterwards, the hydraulic cylinder drives the mounting rod 4, sensor 5, center frame 60 and clamping mechanism 6 to move upward synchronously, while the mobile platform 3 gradually moves backward to peel off the copper foil, and the peeling strength of the copper clad laminate is measured through the data fed back by the sensor 5.

[0043] like Figure 3 As shown, a pressure spring 612 is fixedly provided between the front clamping plate 611 and the rear clamping plate 610 , and a limiting bar 613 for limiting the rotation angle of the front clamping plate 611 is fixedly provided on the front end surface of the horizontal section of the rear clamping plate 610 .

[0044] During operation, the elastic force generated by the deformation of the pressure spring 612 causes the lower end of the front clamping plate 611 to tend to approach the rear clamping plate 610, thereby forming an elastic clamping effect. Secondly, the limit bar 613 prevents the front clamping plate 611 from rotating excessively backward, while maintaining a certain elastic clamping effect on the aluminum foil, avoiding the problem of damage to the copper foil due to excessive elastic clamping force when the copy group 62 is moved horizontally, resulting in the inability to continue the peeling test.

[0045] like Figure 5 and Figure 6As shown, the locking portion 64 includes a mounting slot. Both the rear and front plates 610, 611 of the replica assembly 62 are provided with mounting slots for mounting them to the corresponding mounting beams 63. The lower end surface of the mounting beam 63 is provided with a plurality of locking slots 641 spaced evenly from left to right. The lower sidewalls of the mounting slots are provided with a plurality of locking pins 642 spaced evenly from left to right and capable of sliding up and down. A return spring 643 is secured between the locking pins 642 and the corresponding rear or front plate 610, 611. To facilitate left-right movement of the front and rear plates 611, 610, the inner walls of the locking slots 641 are chamfered on both sides. The maximum height of the locking pins 642 after upward movement is lower than the top of the chamfered area.

[0046] When installing the copy group 62, the front splint 611 and the rear splint 610 in the original group 61 are aligned left and right with the front splint 611 and the rear splint 610 in the copy group 62, and the copy group 62 is installed on the corresponding mounting beam 63 by plug-in installation. At this time, the mounting beam 63 passes through the corresponding mounting groove, and moves the copy group 62 so that the adjacent copy groups 62 and the copy group 62 and the original group 61 are in close contact with each other. During the movement, the locking pin 642 moves synchronously, and the elastic force generated by the deformation of the reset spring 643 makes the locking pin 642 always have a tendency to move upward. Therefore, when the copy group 62 moves to the set position, the locking pin 642 is stuck in the corresponding locking groove 641. The position of the copy group 62 is preliminarily limited in the above manner, which is convenient for the subsequent installation of the bracket 650 and the rigid locking process.

[0047] By initially bringing the copy group 62 and the original group 61 close together and elastically clamping the copper foil, and later moving the copy group 62 horizontally according to the size of the copper foil to uniformly clamp the copper foil, the convenience of clamping the copper foil is improved, and the tedious steps of repeating the clamping action area by area when the copper foil is long are eliminated.

[0048] It should be additionally explained that the mounting beam 63 not only serves as a component for installing the replica group 62, but also enables the front clamping plate 611 in the replica group 62 and the front clamping plate 611 in the original group 61, as well as the rear clamping plate 610 in the replica group 62 and the rear clamping plate 610 in the original group 61 to become one in the front-to-back direction, thereby improving the convenience of the front clamping plate 611 and the rear clamping plate 610 in clamping the copper foil, without the need to open and unlock them one by one and then clamp the copper foil, which greatly improves the convenience and efficiency of the clamping process, and at the same time enables the original group 61 and the replica group 62 to clamp the copper foil in an integrated manner, thereby improving the stability after clamping.

[0049] like Figure 1 、 Figure 2 and Figure 4As shown, the mounting assembly 65 also includes a sleeve groove 651, and the bracket 650 is rotatably set on the upper end surface of the front splint 611 or the rear splint 610. The two brackets 650 on the same replication group 62 are respectively located on the front and rear sides of the center frame 60. A waist-shaped sleeve groove 651 is opened on the bracket 650, and a bolt 652 is installed on the center frame 60 to slide forward and backward. The bolt 652 is threaded with a nut 653. By tightening the nut 653, all the brackets 650 are fixed to form multiple rigid triangular frames, thereby improving the overall clamping strength and stability during the peeling process.

[0050] like Figure 1 、 Figure 2 and Figure 4 As shown, compensation rings 654 are fixedly provided on both the front and rear end surfaces of the center frame 60, the junction areas of the left and right opposite brackets 650 fit together, the junction areas of the left and right adjacent brackets 650 on the same side of the center frame 60 fit together, and the bracket 650 closest to the compensation ring 654 fits with the compensation ring 654.

[0051] During operation, after the copy group 62 moves to the set position and has elastically clamped the copper foil, the bracket 650 is installed. The specific installation process is as follows: manually adjust the direction of the bracket 650 so that the sleeve groove 651 and the compensation ring 654 are opposite to each other front and back, manually pass the bolt 652 through all the sleeve grooves 651 from back to front, and finally manually tighten the corresponding nut 653 to complete the rigid locking of the upper end of the bracket 650. The bracket 650, the copy group 62 and the center frame 60 form a rigid triangular frame together, which improves the strength of the overall frame after clamping by the copy group 62, thereby increasing the stability during the copper foil peeling process.

[0052] By tightly fitting the compensation ring 654 against the bracket 650 and between adjacent brackets 650 , the locking effect of the bracket 650 is ensured after tightening the corresponding nut 653 .

[0053] like Figure 1 、 Figure 2 and Figure 4 As shown, the locking assembly 66 includes a second bolt 660, and the front end surface of the vertical section of the rear clamping plate 610 is fixed with a second bolt 660 with an axis extending from the back to the front. In order to facilitate the rotation of the front clamping plate 611 during the process of clamping the copper foil, the vertical section of the front clamping plate 611 is provided with a waist-shaped through groove 661.

[0054] A locking frame 662 is mounted on the bolt 2 660 corresponding to the original group 61. The left and right sides of the locking frame 662 are U-shaped sections. The bolt 2 660 corresponding to the duplicate group 62 is located in the corresponding U-shaped section. The leftmost bolt 2 660 and the rightmost bolt 2 660 are also threadedly fitted with nuts 653.

[0055] By tightening the nut 653 on the bolt 2 660 and the nut 653 on the bolt 1 652, the clamping action of all the replica groups 62 and the original group 61 is locked and multiple rigid triangular frames are formed, which are suitable for locking situations when multiple replica groups 62 need to be clamped at the same time.

[0056] Example 1: When the horizontal length of the copper-clad laminate is long and multiple replica groups 62 are required for cooperative clamping, after the replica group 62 is installed and adjusted to the set position, the locking frame 662 is manually mounted on the bolt 2 660 in the original group 61, and the remaining bolt 2 660 is located in the U-shaped section on the locking frame 662, and the corresponding nuts 653 are manually tightened to the bolt 2 660 on the far left and the bolt 2 660 on the far back. At this point, the rigid locking of all the front splints 611 and the rear splints 610 is completed. The three-point locking eliminates the tedious steps of locking each clamping point (the position of the original group 61 and the replica group 62) one by one, while ensuring the clamping and locking effect of the copper foil.

[0057] like Figure 1 、 Figure 3 、 Figure 7 and Figure 8 As shown, the locking assembly 66 includes a threaded column 663, and the rear end surface of the vertical section of the rear splint 610 in the original group 61 is rotatably provided with a threaded column 663 whose axis extends from front to rear, and a pressure ring 664 is provided on the vertical section of the corresponding rear splint 610 for sliding back and forth, and the pressure ring 664 is sleeved on the threaded column 663 and the two are threadedly matched.

[0058] A locking frame 665 is movably mounted on the threaded column 663 . The locking frame 665 is divided into longitudinal sections on both sides and a V-shaped section in the middle. The V-shaped section is located on the rear side of the pressure ring 664 . The front end face of the longitudinal section is provided with a fitting block 666 located on the front side of the locking frame 662 .

[0059] By rotating the threaded column 663, the locking frame 662 and the locking frame 665 lock all the front clamping plates 611 and the rear clamping plates 610, and form a triangular rigid frame, which is suitable for locking situations when a small number of replication groups 62 need to be clamped at the same time.

[0060] like Figure 7 and Figure 8 As shown, in order to facilitate the installation of the locking frame 665, the fitting block 666 is rotated and installed to the front end surface of the longitudinal section of the locking frame 665 through the rotating column 667. In order for the locking frame 665 to be installed smoothly, the height of the longitudinal section of the locking frame 665 is smaller than the height of the U-shaped section on the locking frame 662. In order to facilitate the placement of the locking frame 665 on the threaded column 663, a placement groove 668 with an opening facing downward is provided on the V-shaped section of the locking frame 665.

[0061] Example 2: When the horizontal length of the copper clad laminate is short, there is no need for too many copy groups 62 to cooperate with the clamping. The locking frame 662 is installed in the same way as in Example 1. Then, the fitting block 666 is manually made horizontal and the locking frame 665 is clamped on the threaded column 663 from top to bottom, and the locking frame 665 is moved forward so that the longitudinal section of the locking frame 665 is located in the U-shaped section of the locking frame 662. The fitting block 666 is rotated so that the fitting block 666 is in a vertical state. The front and rear projections of the fitting block 666 are opposite to the U-shaped section of the locking frame 662. The threaded column 663 is manually rotated so that the pressure ring 664 moves backward. The pressure ring 664 moves backward and squeezes the locking frame 665, indirectly causing the locking frame 665 to pull the locking frame 662 through the fitting block 666, so that the locking frame 662 rigidly locks all the front splints 611, thereby completing the rigid locking of the original group 61 and the copy group 62.

[0062] By locking at a corresponding position of the bracket 650 and locking at a position of the threaded column 663, it is possible to adapt to copper-clad boards with shorter horizontal lengths, and at the same time, it is possible to save the tedious step of locking each clamping point (the position of the original group 61 and the copy group 62) one by one. Compared with the first embodiment, since the number of copy groups 62 is small, the locking strength is met by locking at a single point on the rear side, while reducing one locking step, thereby improving efficiency.

[0063] In summary, the locking methods in the first and second embodiments eliminate the tedious steps of locking each clamping point (the positions of the original group 61 and the copy group 62 ) one by one, thereby improving the efficiency of the test process.

[0064] In addition, the present invention also provides a method for testing the performance of a copper clad laminate, comprising the following steps: S1. Place the copper clad laminate: Manually peel off the copper foil on one side of the copper clad laminate as a start, then place the copper clad laminate on the test platform 1, and lock and clamp the copper clad laminate with the fixing bracket 2.

[0065] S2. Assembling the replica groups 62: Select a corresponding number of replica groups 62 according to the longitudinal width of the copper clad laminate, and assemble the replica groups 62 onto the corresponding mounting beams 63, with adjacent replica groups 62 and the replica groups 62 and the original group 61 being in close contact with each other.

[0066] S3. Clamping the copper foil: Manually press the front clamping plate 611 in the original group 61, and place the starting end of the copper foil between the front clamping plate 611 and the rear clamping plate 610, then release the front clamping plate 611. At this time, the front clamping plate 611 and the rear clamping plate 610 elastically clamp the copper foil, and then move each replica group 62 laterally according to the size of the copper foil so that all replica groups 62 are evenly distributed on the starting end of the copper foil.

[0067] S4. Locking frame 665: Manually adjust the orientation of bracket 650 so that the sleeve slots 651 and compensation ring 654 are aligned front to back, and insert bolt 1 652 through all sleeve slots 651 from back to front. Finally, manually tighten the corresponding nuts 653 to complete the rigid locking of the upper end of bracket 650. Then, use the corresponding locking method according to the number of replica sets 62. Specifically: Embodiment 1: Manually fit the locking frame 662 onto the bolt 2 660 in the original group 61, and make the remaining bolt 2 660 located in the U-shaped section on the locking frame 662, and manually tighten the corresponding nuts 653 onto the bolt 2 660 on the far left and the bolt 2 660 on the far rear. At this point, the rigid locking of all the front plates 611 and the rear plates 610 is completed through the clamping process at the bolt 1 652 and the above two locations.

[0068] Embodiment 2: Manually install the locking frame 665 onto the threaded column 663, and rotate the threaded column 663 to move the pressure ring 664 backward. The pressure ring 664 moves backward to squeeze the locking frame 665, which indirectly causes the locking frame 665 to pull the locking frame 662 through the fitting block 666, so that the locking frame 662 rigidly locks all the front splints 611, thereby completing the rigid locking of the original group 61 and the copy group 62.

[0069] S5. Peel strength test: The hydraulic cylinder drives the mounting rod 4, sensor 5, center frame 60 and clamping mechanism 6 to move upward synchronously, while the mobile platform 3 gradually moves backward to peel off the copper foil. The peel strength of the copper clad laminate is measured based on the data fed back by the sensor 5.

[0070] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0071] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0072] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0073] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A copper clad laminate performance testing device, characterized in that: include: A test platform, wherein the test platform is provided with two fixed brackets distributed front and back for fixing the copper clad plate, the test platform is provided with a mobile platform that slides back and forth, the mobile platform is provided with a mounting rod through a hydraulic cylinder, and the mounting rod is provided with a sensor for reflecting the magnitude of the tensile force; The mounting rod is provided with a clamping mechanism for clamping the copper foil, the clamping mechanism including a center frame, the lower end surface of the mounting rod is fixedly provided with the center frame, the lower end surface of the center frame is fixedly provided with an original group for clamping the copper foil, and a plurality of detachable replica groups identical to the original group are provided on the left and right sides of the original group; The original group includes a rear splint and a front splint arranged in sequence from back to front, the rear splint in the original group is fixedly connected to the center frame, the rear splint and the front splint are elastically hingedly connected, and the left and right end surfaces of the rear splint and the front splint in the original group are both provided with mounting beams, and the mounting beams are provided with locking parts for preliminarily locking the position of the replica group; A mounting assembly is provided between the central frame and all the replication groups, and the mounting assembly includes a bracket for increasing strength; The original group is provided with a locking assembly for rigidly locking the front clamping plate and the rear clamping plate so that the left and right sides form a rigid triangular frame relative to the bracket.

2. A copper clad laminate performance testing device according to claim 1, characterized in that: A pressure spring is fixedly provided between the front splint and the rear splint, and a limit strip for limiting the rotation angle of the front splint is fixedly provided on the front end surface of the horizontal section of the rear splint.

3. The copper clad laminate performance testing device according to claim 1, characterized in that: The locking portion includes a mounting groove, and the rear splint and the front splint in the replication group are provided with mounting grooves for installing them on the corresponding mounting beam. The lower end surface of the mounting beam is provided with a plurality of locking grooves equidistantly arranged from left to right, and the lower side wall of the mounting groove is provided with a plurality of locking pins equidistantly arranged from left to right and sliding up and down, and a reset spring is fixed between the locking pins and the corresponding rear splint or the corresponding front splint.

4. A copper clad laminate performance testing device according to claim 3, characterized in that: The inner walls on both sides of the locking groove are chamfered, and the maximum height of the locking pin after moving upward is lower than the uppermost side of the chamfered area.

5. The copper clad laminate performance testing device according to claim 1, characterized in that: The mounting assembly also includes a sleeve groove, and the bracket is rotatably set on the upper end surface of the front splint or the rear splint. The two brackets on the same replication group are respectively located on the front and rear sides of the center frame. A waist-shaped sleeve groove is opened on the bracket, and a bolt 1 is installed on the center frame for sliding back and forth. The thread on the bolt 1 is matched with a nut. All brackets are fixed by tightening the nut to form multiple rigid triangular frames.

6. The copper clad laminate performance testing device according to claim 5, characterized in that: Compensation rings are fixedly provided on both front and rear end surfaces of the center frame. The boundary areas of the left and right opposite brackets fit together. The boundary areas of the left and right adjacent brackets on the same side of the center frame fit together. The bracket closest to the compensation ring fits together with the compensation ring.

7. The copper clad laminate performance testing device according to claim 1, characterized in that: The locking assembly includes a second bolt, the front end surface of the vertical section of the rear splint is fixed with a second bolt whose axis extends from the rear to the front, and the vertical section of the front splint is provided with a waist-shaped through groove; The second bolt corresponding to the original group is provided with a locking frame, and the left and right sides of the locking frame are U-shaped sections. The second bolt corresponding to the duplicate group is located in the corresponding U-shaped section, and the second bolt on the far left and the second bolt on the far right are also threaded with nuts.

8. The copper clad laminate performance testing device according to claim 7, characterized in that: The locking assembly includes a threaded column, a threaded column with an axis extending from front to back is rotatably provided on the rear end surface of the vertical section of the rear splint in the original group, and a pressure ring is slidably provided on the vertical section of the corresponding rear splint, the pressure ring is sleeved on the threaded column and the two are threadedly matched; A locking frame is movably mounted on the threaded column. The locking frame is divided into longitudinal sections on both sides and a V-shaped section in the middle. The V-shaped section is located at the rear side of the pressure ring, and the front end surface of the longitudinal section is provided with a fitting block located at the front side of the locking frame.

9. The copper clad laminate performance testing device according to claim 8, characterized in that: The fitting block is rotatably mounted on the front end surface of the longitudinal section of the locking frame through a rotating column. The height of the longitudinal section of the locking frame is smaller than the height of the U-shaped section on the locking frame. A placement groove with an opening facing downward is provided on the V-shaped section of the locking frame.

10. A copper clad laminate performance testing method, performed by using a copper clad laminate performance testing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Place the copper clad laminate: Peel off the copper foil on one side of the copper clad laminate as a starting point, and place and lock the copper clad laminate on the test platform; S2. Assembling the replica groups: selecting a corresponding number of replica groups according to the longitudinal width of the copper clad laminate, and assembling the replica groups; S3. Clamping the copper foil: Place the beginning of the copper foil between the front and rear clamping plates, loosen the front clamping plate, and then elastically clamp the copper foil with the front and rear clamping plates. Then, move each replica group laterally according to the size of the copper foil so that all replica groups are evenly distributed on the beginning of the copper foil. S4. Locking the frame: Adjust the orientation of the bracket and rigidly lock the upper end of the bracket. Then, use the corresponding locking method according to the number of replication groups. S5. Peel strength test: The hydraulic cylinder drives the mounting rod, sensor, center frame and clamping mechanism to move upward synchronously, while the mobile platform gradually moves backward to peel off the copper foil. The peel strength of the copper clad laminate is measured through the data fed back by the sensor.

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