Fixing device for copper foil tension detection

Abstract

The invention discloses a fixing device for copper foil tension detection, and relates to the technical field of copper foil adhesive tape production, the fixing device comprises a rack, a fixing lug plate is integrated on the rack, a winding roller is rotatably connected to the fixing lug plate, a copper foil roll is nested on the winding roller, an end part clamping assembly for clamping the end part of the copper foil is arranged at the chuck position of the rack, and the end part of the copper foil is clamped by the end part clamping assembly. According to the copper foil fixing equipment, the copper foil is supported through the fixing lug plates and the winding roller, the cutting frequency is reduced, tension detection is facilitated, power is provided through the control assembly, and the copper foil fixing equipment is convenient to use and high in practicability. And the blade is driven to move to cut the copper foil, so that tension detection can be conveniently carried out on different positions of the copper foil, and tension detection can be conveniently carried out on different positions of the copper foil.

Description

Technical Field

[0001] The invention relates to the technical field of copper foil tape production, in particular to a fixing device for copper foil tension detection. Background Art

[0002] Foil tape is a metal tape mainly used for electromagnetic shielding, which is divided into electrical signal shielding and magnetic signal shielding. Electrical signal shielding mainly relies on the excellent electrical conductivity of copper itself, while magnetic shielding requires the conductive material "nickel" on the adhesive surface of copper foil tape to achieve the effect of magnetic shielding. Therefore, it is widely used in mobile phones, notebook computers and other digital products. Copper foil tape needs to be selected and tested before production, and the tensile force of copper foil is an important part of the test.

[0003] The copper foil fixing device is a device required for the copper foil tensile test. The copper foil is fixed by the fixing device, and then it can be pulled by the tensile tester for testing. The existing copper foil fixing device uses two sets of fixing structures to fix the two ends of the copper foil.

[0004] However, the same roll of copper foil may need to be tested multiple times, and it is troublesome to repeatedly take it up and fix both ends. Traditional tensile testers need to continuously cut the copper foil and repeatedly cut out the copper foil that needs to be tested, which requires the cutting equipment and tensile testing equipment to work together.

[0005] A fixing device for copper foil tensile testing disclosed in a Chinese patent with reference application number CN220270975U realizes one-time testing by setting a top plate, a punching knife, an upper sleeve, a lower sleeve, an inner spring, an outer spring, and a punching groove. Then, the copper foil can be placed between the punching knife and the punching groove, and the top plate can be pressed to cut and punch the copper foil, thereby facilitating continuous testing of a roll of copper foil and increasing the functionality of the device.

[0006] The present application designs another fixing device for copper foil tensile testing to solve the above-mentioned problem. Summary of the invention

[0007] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a fixing device for copper foil tensile testing, which solves the problem that the traditional copper foil fixing equipment needs a cutting device and a tensile testing device to cooperate with each other to realize tensile testing at different positions of the copper foil during the tensile testing process, which increases the cost and consumes time.

[0008] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixing device for copper foil tensile force detection, comprising a frame, the frame is integrated with a fixing ear plate, the fixing ear plate is rotatably connected to a winding roller, the copper foil roll is nested on the winding roller, the frame chuck position is provided with an end clamping assembly for clamping the end of the copper foil, the frame is also provided with a blade for cutting the copper foil to facilitate tensile force detection at different positions of the copper foil, and the frame is provided with a control assembly for driving the blade to move to cut the copper foil.

[0009] Through the above technical solution, the copper foil roll is nested on the winding roller, and the copper foil is supported by fixing the ear plate and the winding roller. The winding roller is rotated to move the copper foil. The end of the copper foil is fixed by the end clamping assembly to facilitate tensile testing. After the test is completed, the winding roller is rotated again until the copper foil moves to the position where it needs to be tested again. The control assembly provides power to drive the blade to move and cut the copper foil, so as to facilitate tensile testing of different positions of the copper foil.

[0010] Preferably, the end clamping assembly includes a mounting plate connected to the clamping head position of the frame, a horizontal guide rod is integrated on the inner surface of the mounting plate, a screw rod located below the guide rod is rotatably connected to the inner surface of the mounting plate, the threads on the screw rod are relatively arranged with the middle position of the mounting plate as the center, one end of the screw rod passes through the mounting plate and is rotatably connected to the mounting plate, a handle is integrated with the part of the screw rod passing through the mounting plate, and two relatively arranged clamping plates are provided on the outer sleeve of the screw rod, the clamping plates are threadedly connected to the screw rod, and the clamping plates are sleeved outside the guide rod and are slidably connected to the guide rod.

[0011] According to the technical solution, the handle is rotated to drive the screw to rotate, and the rotation of the screw drives the two clamping plates to move toward each other. The guide rod guides the movement of the two clamping plates to facilitate clamping and loosening the ends of the copper foil.

[0012] Preferably, the frame is further provided with a middle clamping assembly located between the winding roller and the mounting plate and limiting the position of the copper foil, and a supporting assembly cooperating with the middle clamping assembly.

[0013] Through the above technical solution, the copper foil is clamped by cooperating with the support component and the middle clamping component, thereby further improving the accuracy of the tension test result.

[0014] Preferably, the support assembly comprises a left L-shaped plate fixed on the frame, and a top plate parallel to the copper foil and supporting the copper foil is fixedly connected to the left L-shaped plate via an I-shaped plate.

[0015] Through the above technical solution, the left L-shaped plate and the I-shaped plate support the top plate, and the top plate is parallel to the copper foil and contacts the copper foil, which does not affect the tensile test of the copper foil while supporting the copper foil to facilitate pressing the middle part of the copper foil or cutting the copper foil.

[0016] Preferably, the middle clamping assembly includes a right L-shaped plate fixed on the frame and arranged opposite to the left L-shaped plate, the right L-shaped plate passes through two upper moving rods arranged opposite to each other and slidably connected to the right L-shaped plate, one end of the two upper moving rods passing through the right L-shaped plate is fixed with a pressure plate that cooperates with the top plate to clamp the copper foil, and the right L-shaped plate is provided with a driving assembly for controlling the movement of the pressure plate to clamp or loosen the copper foil.

[0017] Through the above technical solution, the driving assembly provides power to drive the upper moving rod and the pressure plate to move.

[0018] Preferably, the driving assembly includes a side plate fixedly connected to the right L-shaped plate by a plurality of evenly arranged cross bars, the side plate is slidably connected to a movable plate toward the right L-shaped plate through a slide rail, the movable plate is integrated with an A active plate on the side away from the side plate, the A active plate has an inclined surface on the side away from the movable plate, and vertical surfaces with a smooth transition thereto are provided on both sides of the inclined surface, upper ear seats are fixed to the side of the two upper movable rods away from the pressure plate, an upper pulley in contact with the A active plate is movably connected to the upper ear seat, the upper ear seat is fixed to the right L-shaped plate by an A spring mounted outside the upper movable rod, a cylinder is fixed to the frame, and the extended end of the cylinder is fixed to the movable plate.

[0019] Through the above technical solution, the cylinder provides power to drive the moving plate fixed to the extended end of the cylinder to move, and the movement of the moving plate drives the A active plate to move. The A active plate and the upper pulley transmit power to drive the upper moving rod and the pressure plate to move, and cooperate with the top plate to fix the copper foil.

[0020] Preferably, the control component includes two lower moving rods that pass through the right L-shaped plate and are slidably connected to the right L-shaped plate, one end of the two lower moving rods passing through the right L-shaped plate is fixed to the blade, and the other end is fixed with a lower ear seat, and a lower pulley is movably connected to the lower ear seat, and a B active plate is fixed to the moving plate, the structure of the B active plate is the same as that of the A active plate and is arranged relative to each other, the lower pulley is in conflict with the B active plate, and the lower ear seat and the right L-shaped plate are fixed by a C spring mounted outside the lower moving rod.

[0021] Through the above technical solution, the cylinder provides power to drive the moving plate and the B active plate of the integrated structure to move, thereby driving the lower moving rod and the blade to move.

[0022] (III) Beneficial effects The present invention provides a fixing device for copper foil tensile testing, which has the following beneficial effects: (1) The copper foil fixing device has a copper foil roll nested on a winding roller, and the copper foil is supported by a fixed ear plate and a winding roller. The copper foil is moved by rotating the winding roller, and the end of the copper foil is fixed by an end clamping assembly to facilitate tensile testing. After the test is completed, the winding roller is rotated again until the copper foil moves to a position where it needs to be tested again. The control assembly provides power to drive the blade to move and cut the copper foil, so that tensile testing can be performed on different positions of the copper foil.

[0023] (2) The copper foil fixing device has a blade and a pressing plate arranged in sequence in the vertical direction. A power source of a cylinder can control the pressing plate and the blade to move alternately, so as to facilitate the clamping and cutting of the copper foil. While facilitating tensile testing, it is also suitable for cutting different positions of the copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 3 For the present invention Figure 1 The enlarged structural diagram at B in the middle; Figure 4 This is a schematic diagram of the structure of the movable plate used to embody the present invention; Figure 5 This is a schematic diagram of the structure of the A spring used to embody the present invention; Figure 6 It is a schematic diagram of the structure of the B active board embodied in the present invention.

[0025] In the figure: 1. frame; 2. fixed ear plate; 3. adjusting ear plate; 4. circular hole; 5. winding roller; 6. nut; 7. mounting plate; 8. guide rod; 9. screw; 10. handle; 11. clamping plate; 12. left L-shaped plate; 13. I-shaped plate; 14. top plate; 15. right L-shaped plate; 16. upper moving rod; 17. pressure plate; 18. cross bar; 19. side plate; 20. moving plate; 21. A active plate; 22. upper ear seat; 23. upper pulley; 24. A spring; 25. cylinder; 26. upper guide rod; 27. B spring; 28. blade; 29. ​​lower moving rod; 30. lower ear seat; 31. lower pulley; 32. B active plate; 33. C spring; 34. lower guide rod; 35. D spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-6 As shown, the present invention provides a technical solution: a fixing device for copper foil tensile testing, comprising a frame 1 for performing tensile testing on the copper foil, the frame 1 is an existing device, referring to a tensile testing machine model HY-0350 on the market, or any other experimental equipment that can perform tensile testing on the copper foil.

[0028] like Figure 1 A winding assembly is provided on the frame 1 for supporting the copper foil roll and facilitating the rotation of the copper foil roll so as to facilitate the tensile force detection of different positions of the copper foil roll. The winding assembly includes a fixed ear plate 2 and an adjusting ear plate 3 arranged on the frame 1. The fixed ear plate 2 and the adjusting ear plate 3 are arranged relatively to each other. The fixed ear plate 2 and the frame 1 are an integrated structure. A plurality of screw holes are provided on the frame 1. The adjusting ear plate 3 and the frame 1 are fixed by screws entering appropriate screw holes.

[0029] like Figure 3 A circular hole 4 is opened on the adjusting ear plate 3, and a winding roller 5 penetrating the fixed ear plate 2 is rotatably connected to the fixed ear plate 2. One end of the winding roller 5 passing through the fixed ear plate 2 is integrated with a handle, and the other end passes through the adjusting ear plate 3 through the circular hole 4. The part of the winding roller 5 passing through the adjusting ear plate 3 is sleeved with a nut 6 threadedly connected to the winding roller 5.

[0030] like Figure 3 The copper foil roll is nested outside the winding roller 5 and is tightly connected to the winding roller 5. The fixed ear plate 2 and the winding roller 5 support the copper foil roll. The adjusting ear plate 3 is moved to a suitable position and contacts the copper foil roll. It is suitable for copper foil rolls of different sizes. The adjusting ear plate 3 is fixed by screws and screw holes to improve the stability and utilization rate of the connection between the adjusting ear plate 3 and the frame 1. The winding roller 5 is limited by the nut 6. The number of rotations of the winding roller 5 is adjusted by rotating the handle to adjust the length of the removed copper foil. In order to lock the copper foil roll, the handle and the fixed ear plate 2 are detachably fixed by screws.

[0031] like Figure 1 and Figure 2 The frame 1 is provided with an end clamping assembly for clamping the end of the copper foil roll to facilitate tension detection.

[0032] like Figure 1 and Figure 2The end clamping assembly includes a mounting plate 7 connected to the clamping position of the frame 1, a horizontal guide rod 8 is integrated on the inner surface of the mounting plate 7, a screw rod 9 located below the guide rod 8 is rotatably connected to the inner surface of the mounting plate 7, and the threads on the screw rod 9 are relatively arranged with the middle position of the mounting plate 7 as the center, one end of the screw rod 9 passes through the mounting plate 7 and is rotatably connected to the mounting plate 7, and a handle 10 is integrated with the part of the screw rod 9 passing through the mounting plate 7. Two relatively arranged clamping plates 11 are provided on the outer sleeve of the screw rod 9, and the clamping plates 11 are threadedly connected to the screw 9. The clamping plates 11 are sleeved outside the guide rod 8 and are slidably connected to the guide rod 8, and an anti-slip sheet is integrated on the opposite side of the clamping plates 11.

[0033] like Figure 1 and Figure 2 The handle 10 is rotated to drive the screw 9 to rotate, and the rotation of the screw 9 drives the two clamping plates 11 to move toward each other. The guide rod 8 guides the movement of the two clamping plates 11 to facilitate clamping and loosening the ends of the copper foil.

[0034] like Figure 1 and Figure 3 and Figure 4 In order to further improve the stability of the tension detection, the frame 1 is also provided with a middle clamping assembly located between the winding roller 5 and the mounting plate 7 and limiting the copper foil, and a supporting assembly cooperating with the middle clamping assembly.

[0035] like Figure 1 and Figure 3 The support assembly includes a left L-shaped plate 12 fixed on the frame 1, and a top plate 14 parallel to the copper foil and supporting the copper foil is fixedly connected to the left L-shaped plate 12 through an I-shaped plate 13.

[0036] like Figure 1 and Figure 4 The middle clamping assembly includes a right L-shaped plate 15 fixed on the frame 1 and arranged opposite to the left L-shaped plate 12. The right L-shaped plate 15 is penetrated by two upper moving rods 16 arranged opposite to each other and slidably connected to the right L-shaped plate 15. One end of the two upper moving rods 16 passing through the right L-shaped plate 15 is fixed with a pressing plate 17 that cooperates with the top plate 14 to clamp the copper foil. The right L-shaped plate 15 is provided with a driving assembly that controls the movement of the pressing plate 17 to clamp or loosen the copper foil. The driving assembly provides power to drive the upper moving rod 16 and the pressing plate 17 to move.

[0037] like Figure 1 and Figure 4 and Figure 5 and Figure 6The driving assembly includes a side plate 19 fixedly connected to the right L-shaped plate 15 through a plurality of evenly arranged cross bars 18, the side plate 19 is slidably connected to a movable plate 20 toward the right L-shaped plate 15 through a slide rail, and an A active plate 21 is integrated on the side of the movable plate 20 away from the side plate 19, and an inclined surface is provided on the side of the A active plate 21 away from the movable plate 20, and vertical surfaces with smooth transition thereto are provided on both sides of the inclined surface, an upper ear seat 22 is fixed to the side of the two upper movable rods 16 away from the pressure plate 17, an upper pulley 23 that contacts the A active plate 21 is movably connected to the upper ear seat 22, and the upper ear seat 22 is fixed to the right L-shaped plate 15 by an A spring 24 sleeved on the outer side of the upper movable rod 16, and a cylinder 25 is fixed to the frame 1, and the extended end of the cylinder 25 is fixed to the movable plate 20.

[0038] like Figure 1 and Figure 4 and Figure 5 and Figure 6 The cylinder 25 provides power to drive the movable plate 20 to move on the side plate 19, and the slide rail guides the movement of the side plate 19. The movement of the movable plate 20 will drive the A active plate 21, which is an integrated structure with the movable plate 20, to move. When the inclined surface of the A active plate 21 contacts the upper pulley 23, it drives the upper movable plate 20 and the pressure plate 17 to move. When the vertical surface of the A active plate 21 contacts the upper pulley 23, the upper movable plate 20 and the pressure plate 17 do not move.

[0039] like Figure 1 and Figure 4 and Figure 5 and Figure 6 In order to improve the stability of the movement of the pressure plate 17, two upper guide rods 26 arranged opposite to the upper moving rod 16 are fixed on the pressure plate 17. The upper guide rods 26 pass through the right L-shaped plate 15 and are slidably connected to the right L-shaped plate 15. The pressure plate 17 and the right L-shaped plate 15 are fixed by a B spring 27 sleeved on the outer side of the upper guide rods 26.

[0040] like Figure 1 and Figure 4 and Figure 5 and Figure 6 The B spring 27 limits the movement of the pressing plate 17, and the upper guide rod 26 assists in guiding the movement of the pressing plate 17, thereby improving the stability of the movement of the pressing plate 17.

[0041] like Figure 1 and Figure 4 and Figure 5 and Figure 6In order to facilitate the tensile force detection of different positions of the copper foil roll, a blade 28 for cutting the copper foil roll is provided on the right L-shaped plate 15. A control component for driving the blade 28 to move is provided on the right L-shaped plate 15. The control component provides power to drive the blade 28 to move. When the tensile force detection is performed, the blade 28 does not contact the copper foil and does not affect the copper foil detection. When the copper foil needs to be cut, the blade 28 moves to contact the copper foil and cuts the copper foil, so as to facilitate the tensile force detection of the copper foil at the appropriate position.

[0042] like Figure 1 and Figure 4 and Figure 5 and Figure 6 The control component includes two lower moving rods 29 that pass through the right L-shaped plate 15 and are slidably connected to the right L-shaped plate 15. One end of the two lower moving rods 29 that pass through the right L-shaped plate 15 is fixed to the blade 28, and the other end is fixed with a lower ear seat 30, and a lower pulley 31 is movably connected to the lower ear seat 30. A B active plate 32 is fixed to the moving plate 20. The structure of the B active plate 32 is the same as that of the A active plate 21 and is arranged relatively. The lower pulley 31 is in conflict with the B active plate 32, and the lower ear seat 30 and the right L-shaped plate 15 are fixed by a C spring 33 sleeved outside the lower moving rod 29.

[0043] like Figure 1 and Figure 4 and Figure 5 and Figure 6 In order to improve the stability of the movement of the blade 28, two lower guide rods 34 arranged opposite to the lower moving rod 29 are fixed on the pressure plate 17. The lower guide rods 34 pass through the right L-shaped plate 15 and are slidably connected to the right L-shaped plate 15. The blade 28 and the right L-shaped plate 15 are fixed by a D spring 35 sleeved outside the lower guide rods 34.

[0044] When in use, the copper foil roll is nested outside the winding roller 5 and fixed to the winding roller 5, and then the winding roller 5 is passed through the circular hole 4 to provide the adjusting ear plate 3, the winding roller 5 is rotatably connected to the adjusting ear plate 3, and the adjusting ear plate 3 is moved so that the adjusting ear plate 3 is close to the copper foil roll and contacts the copper foil roll, at this time, the adjusting ear plate 3 and the frame 1 are fixed by screws entering appropriate screw holes, and then the nut 6 is threadedly sleeved outside the winding roller 5 and contacts the adjusting ear plate 3; Grab the handle and rotate it manually. The rotation of the handle will adjust the number of revolutions of the winding roller 5 to adjust the length of the copper foil extending out of the winding roller 5. Grab the copper foil and extend it out of the end of the winding roller 5 until the end of the copper foil is located between the two clamping plates 11. Grab the handle 10 and rotate it manually. The rotation of the handle 10 will drive the screw 9 coaxially fixed with the handle 10 to rotate. The screw 9 is threadedly connected to the clamping plate 11. The rotation of the screw 9 will drive the two clamping plates 11 to move toward each other. The guide rod 8 guides the movement of the two clamping plates 11 until the two clamping plates 11 move to clamp the copper foil and stop. The handle 10 is fixed to the mounting plate 7 by screws. The copper foil is tightened to keep it in a vertical state, and then the cylinder 25 is turned on. The cylinder 25 provides power to drive the movable plate 20 fixed to the extended end of the cylinder 25 to move downward. The movement of the movable plate 20 drives the A active plate 21 of the integrated structure with the movable plate 20 to move downward, and then drives the upper pulley 23 to move. The A spring 24 is compressed, and the B spring 27 is stretched. The upper movable rod 16 moves and drives the pressing plate 17 of the integrated structure with the upper movable rod 16 to move. The pressing plate 17 moves and cooperates with the top plate 14 to press the copper foil. At this time, the copper foil is tested for tension. After the inspection is completed, the two clamping plates 11 are opened, one end of the broken copper foil is taken out, and the cylinder 25 provides power to drive the moving plate 20 to move up, and the A spring 24 and the B spring 27 rebound until the pressure plate 17 is disconnected from the copper foil. At this time, the other end of the broken copper foil is grasped, and the handle is turned again to rotate the winding roller 5 until the copper foil rotates to the position to be inspected, and the end of the copper foil is fixed to the clamping plate 11; The cylinder 25 provides power to drive the moving plate 20 to continue to move upward, the lower pulley 31 contacts the B active plate 32 and causes the C spring 33 to be compressed, the D spring 35 to be stretched, the upper guide rod 26 and the lower guide rod 34 do not affect the movement of the upper moving rod 16 and the lower moving rod 29, the lower moving rod 29 moves and drives the blade 28 to move, cutting the copper foil; The cylinder 25 provides power to drive the movable plate 20 to move downward, and the C spring 33 and the D spring 35 rebound to drive the blade 28 to move in the opposite direction without contacting the copper foil. The above operation is repeated to perform tension detection on the appropriate position of the copper foil. This is the use process of the copper foil fixing device. At the same time, the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for copper foil tensile testing, characterized in that: It comprises a frame (1), the frame (1) is integrated with a fixed ear plate (2), a winding roller (5) is rotatably connected to the fixed ear plate (2), the copper foil roll is nested on the winding roller (5), and an end clamping component for clamping the end of the copper foil is provided at the clamping position of the frame (1); The frame (1) is also provided with a blade (28) for cutting the copper foil to facilitate tensile force detection at different positions of the copper foil, and the frame (1) is provided with a control component for driving the (28) to move to cut the copper foil.

2. A copper foil tension detection fixture according to claim 1, characterized in that: The end clamping assembly comprises a mounting plate (7) connected to the clamping position of the frame (1); a horizontal guide rod (8) is integrated on the inner surface of the mounting plate (7); a screw rod (9) located below the guide rod (8) is rotatably connected to the inner surface of the mounting plate (7); the threads on the screw rod (9) are relatively arranged with the middle position of the mounting plate (7) as the center; one end of the screw rod (9) passes through the mounting plate (7) and is rotatably connected to the mounting plate (7); a handle (10) is integrated on the portion of the screw rod (9) passing through the mounting plate (7); two clamping plates (11) arranged opposite to each other are provided on the outer sleeve of the screw rod (9); the clamping plates (11) are threadedly connected to the screw rod (9); the clamping plates (11) are sleeved outside the guide rod (8) and are slidably connected to the guide rod (8).

3. A copper foil tension detection fixture according to claim 2, characterized in that: The frame (1) is also provided with a middle clamping assembly located between the winding roller (5) and the mounting plate (7) and limiting the position of the copper foil, and a supporting assembly cooperating with the middle clamping assembly.

4. A copper foil tension detection fixture according to claim 3, characterized in that: The support assembly comprises a left L-shaped plate (12) fixed on the frame (1), and a top plate (14) parallel to the copper foil and supporting the copper foil is fixedly connected to the left L-shaped plate (12) via an I-shaped plate (13).

5. A fixing device for copper foil tensile testing according to claim 4, characterized in that: The middle clamping assembly comprises a right L-shaped plate (15) fixed on the frame (1) and arranged opposite to the left L-shaped plate (12); the right L-shaped plate (15) is penetrated by two upper moving rods (16) arranged opposite to each other and slidably connected to the right L-shaped plate (15); a pressing plate (17) cooperating with the top plate (14) to clamp the copper foil is fixed to one end of the two upper moving rods (16) passing through the right L-shaped plate (15); and a driving assembly for controlling the movement of the pressing plate (17) to clamp or release the copper foil is provided on the right L-shaped plate (15).

6. A fixing device for copper foil tensile testing according to claim 5, characterized in that: The driving assembly comprises a side plate (19) fixedly connected to the right L-shaped plate (15) via a plurality of evenly arranged cross bars (18); the side of the side plate (19) facing the right L-shaped plate (15) is slidably connected to a movable plate (20) via a slide rail; the movable plate (20) is integrally provided with an A active plate (21) on a side facing away from the side plate (19); the A active plate (21) has an inclined surface on a side facing away from the movable plate (20); and the inclined surface has vertical slant edges on both sides thereof that smoothly transition therefrom. On the face, an upper ear seat (22) is fixed on the side of the two upper moving rods (16) away from the pressure plate (17), and an upper pulley (23) that contacts the A active plate (21) is movably connected to the upper ear seat (22). The upper ear seat (22) is fixed to the right L-shaped plate (15) by an A spring (24) sleeved on the outside of the upper moving rod (16). A cylinder (25) is fixed on the frame (1), and the extended end of the cylinder (25) is fixed to the moving plate (20).

7. A copper foil tension detection fixture according to claim 6, characterized in that: The control assembly comprises two lower moving rods (29) penetrating the right L-shaped plate (15) and slidably connected to the right L-shaped plate (15); one end of the two lower moving rods (29) passing through the right L-shaped plate (15) is fixed to the blade (28), and the other end is fixed with a lower ear seat (30); a lower pulley (31) is movably connected to the lower ear seat (30); a B active plate (32) is fixed to the moving plate (20); the structure of the B active plate (32) is the same as that of the A active plate (21) and is arranged relative to each other; the lower pulley (31) abuts against the B active plate (32); and the lower ear seat (30) and the right L-shaped plate (15) are fixed by a C spring (33) sleeved on the outside of the lower moving rod (29).

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