A COF substrate strength detection device

Abstract

A COF substrate strength detection device disclosed by the present invention belongs to the technical field of COF substrate detection, and includes a bottom plate. An fixing plate and a connecting rod are installed on the upper wall of the bottom plate. A first connecting plate is installed on the side wall of the upper end of any group of the fixing plates. A support plate is installed between the first connecting plates, and the support plate is connected to the upper end of the connecting rod. A driving component is installed on the support plate, and the lower end of the driving component is connected to a moving plate. The connecting rod is movably arranged through the moving plate. A second testing component is installed on the bottom wall of the moving plate. A limiting component is installed on the side wall of any group of the fixing plates, and the lower end of the limiting component is arranged at the lower end of the moving plate. A regulating and cleaning component is installed between the adjacent fixing plate and the limiting component; the present invention is used for bending test and impact test on a COF substrate sample. The regulating plate squeezes the folding bladder, and the folding bladder is compressed, which is convenient for cleaning the position after the test.

Description

Technical Field

[0001] The present invention belongs to the technical field of COF substrate detection, and particularly relates to a COF substrate strength detection device. Background Art

[0002] COF, often called flip-chip on film, is a chip soft film packaging technology that fixes an integrated circuit (IC) on a flexible printed circuit board. It uses a flexible additional circuit board as a packaging chip carrier to combine the chip with the flexible substrate circuit, or simply refers to the flexible additional circuit board without a packaged chip. The mechanical strength test of the COF substrate is a key step to ensure that it can withstand various mechanical stresses in actual applications. Among them, the impact test usually needs to be carried out through an impact testing machine to evaluate the tolerance of the material when it is subjected to impact or collision. An impact load is applied to the COF substrate, and the damage conditions of the specimen under the impact load, such as cracks and fractures, are observed; the bending test needs to be carried out through a bending testing machine to evaluate the strength and stiffness of the material under the bending load. The testing machine is started, the load is gradually increased, and the maximum bending load and deformation of the specimen are recorded; each testing method requires different equipment, which is inconvenient to simultaneously implement two tests through one device, and at the same time, the residues after the test cannot be cleaned up. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a COF substrate strength detection device, which at least partially solves the problems raised in the above background art.

[0004] The technical solution adopted by the present invention is as follows: A COF substrate strength detection device includes a bottom plate for support and fixation. A fixed plate and a connecting rod are installed on the upper wall of the bottom plate. There are two groups of fixed plates, which are symmetrically arranged on the upper wall of the bottom plate. A first connecting plate is installed on the side wall of the upper end of any one group of fixed plates. A support plate is installed between the first connecting plates. The support plate is connected to the upper end of the connecting rod. The fixed plate and the connecting rod support and fix the support plate. A driving component is installed on the support plate. The lower end of the driving component is connected to a moving plate. The connecting rod movably penetrates through the moving plate. A second testing component is installed on the bottom wall of the moving plate. The second testing component is arranged at the upper end of the bottom plate. A limiting component is installed on the side wall of any one group of fixed plates. The lower end of the limiting component is arranged at the lower end of the moving plate. A regulating and cleaning component is installed between the adjacent fixed plate and the limiting component.

[0005] Preferably, the driving assembly includes a hydraulic rod, a first driving plate, a second driving plate and a third driving plate. The hydraulic rod is arranged on the support plate, and the support plate supports and fixes the hydraulic rod. The upper end of the first driving plate is movably connected to the bottom wall of the support plate. The lower end of the second driving plate is movably connected to the upper wall of the moving plate. The lower end of the first driving plate is movably connected to the upper end of the second driving plate. One end of the third driving plate is movably connected to the connection part of the first driving plate and the second driving plate. The other end of the third driving plate is movably installed with a third connecting plate. The movable end of the hydraulic rod is connected to the upper wall of the third connecting plate.

[0006] Further, the limiting assembly includes a first limiting member, a second limiting member, an upper inserting plate and a lower inserting plate. The first limiting member and the second limiting member are both arranged on the side wall of the fixing plate, and the fixing plate supports and fixes the first limiting member and the second limiting member. The first limiting member is arranged above the second limiting member, and both the first limiting member and the second limiting member are cavity structures with openings on the side walls. One end of the upper inserting plate is movably clamped in the first limiting member, and the other end of the upper inserting plate is arranged outside the first limiting member. One end of the lower inserting plate is movably clamped in the second limiting member, and the other end of the lower inserting plate is arranged outside the second limiting member. Multiple groups of balls for reducing friction are arranged on the side walls of the upper inserting plate and the lower inserting plate. A pushing plate is installed between the upper inserting plate and the lower inserting plate. A lifting plate and a clamping plate are installed on the side wall of the pushing plate. The lifting plate is arranged above the clamping plate, and the upper end of the lifting plate is of an inclined structure.

[0007] As a preference of the present invention, the bottom wall of the moving plate is provided with a lower pressing plate. The bottom wall of the lower pressing plate is of an inclined structure, and the inclination angle is the same as that of the upper wall of the lifting plate. The lower pressing plate is arranged directly above the lifting plate, and the inclined surface of the bottom wall of the lower pressing plate is movably connected to the inclined surface of the upper end of the lifting plate. Multiple groups of balls for reducing friction are arranged on the inclined surface of the bottom wall of the lower pressing plate.

[0008] Among them, the regulating and cleaning assembly includes a regulating plate. The regulating plate is arranged on the side wall of the pushing plate, and the pushing plate supports and fixes the regulating plate. A folding bladder is installed between the regulating plate and the fixing plate. The folding bladder is arranged between the first limiting member and the second limiting member. A sealed chamber is formed among the folding bladder, the fixing plate and the regulating plate. A gas guide pipe is installed on the side wall of the regulating plate, and the other end of the gas guide pipe is connected to the side wall of the moving plate.

[0009] Among them, a first ventilation pipe is arranged in the moving plate. Two cleaning plates for cleaning are installed on the upper wall of the moving plate. The two cleaning plates are symmetrically placed on the upper wall of the moving plate and are both arranged below the third connecting plate. Multiple cleaning holes for gas circulation are arranged on the cleaning plates. The other end of the gas guide pipe is connected to one end of the first ventilation pipe in a penetrating manner. The other end of the first ventilation pipe is connected to the cleaning holes in a penetrating manner. A control valve is arranged in the first ventilation pipe to facilitate controlling the gas circulation.

[0010] Preferably, a second ventilation pipe is provided on the side wall of the fixed plate, a third ventilation pipe and a fourth ventilation pipe are provided in the bottom plate, a cavity is further provided in the bottom plate, an elastic bladder is provided in the cavity, the upper end of the second ventilation pipe is connected to the sealed chamber in the folding bladder in a through manner, the lower end of the second ventilation pipe is connected to one end of the third ventilation pipe in a through manner, the other end of the third ventilation pipe is connected to one end of the elastic bladder in a through manner, one end of the fourth ventilation pipe is connected to the other end of the elastic bladder in a through manner, and control valves are provided in both the second ventilation pipe and the fourth ventilation pipe to facilitate the control of gas flow.

[0011] Preferably, the second test assembly includes a telescopic rod and a second spring. The upper end of the telescopic rod and the upper end of the second spring are both provided on the bottom wall of the moving plate. The second spring is sleeved outside the telescopic rod. A connecting plate is installed at the lower ends of the second spring and the telescopic rod. A clamping groove is provided on the side wall of the connecting plate. The clamping plate is movably clamped in the clamping groove. A second test rod is installed at the center of the bottom wall of the connecting plate.

[0012] Among them, two connecting plates are symmetrically installed on the bottom wall of the support plate. The driving assembly is arranged between the two connecting plates. A scale is installed on the side wall of any one of the two connecting plates to facilitate observing the bending degree of the COF substrate sample. A clamping assembly is installed on the other side wall of the connecting plate. The clamping assembly includes a mounting plate and a second clamping plate. The mounting plate is arranged above the second clamping plate. A first spring is provided on the bottom wall of the mounting plate. The lower end of the first spring is installed with a first clamping plate. The first clamping plate is movably clamped on the side wall of the connecting plate. Rubber pads are provided on both the first clamping plate and the second clamping plate. Both ends of the COF substrate sample to be tested are clamped between the first clamping plate and the second clamping plate. The rubber pads increase the friction force. The clamped COF substrate sample is arranged directly below the third connecting plate.

[0013] Furthermore, a first test rod is installed at the center of the bottom wall of the third connecting plate. The first test rod is arranged directly above the clamped COF substrate sample and is located at the center position of the clamped COF substrate sample. A placement groove is provided on the upper wall of the bottom plate. The placement groove is arranged directly below the second test rod. Another COF substrate sample to be detected is installed in the placement groove. Cleaning holes are provided on both side walls of the placement groove. The cleaning holes are connected to the other end of the fourth ventilation pipe in a through manner. The gas in the fourth ventilation pipe is discharged through the cleaning holes to clean the residue in the placement groove.

[0014] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0015] (1) Both ends of the COF substrate sample to be tested are clamped between the first clamping plate and the second clamping plate. The clamped COF substrate sample is located directly below the first test rod of the connecting plate three for bending test of the COF substrate sample. Another group of COF substrate samples to be detected is installed in the placement groove for impact test of the COF substrate sample.

[0016] (2) When the moving plate moves downward, it can drive the lower pressing plate to move downward. The lower pressing plate drives the lifting plate. Under the action of the lower pressing plate, the first limiting member and the second limiting member, the lifting plate moves towards the fixed plate, driving the regulating plate to move towards the fixed plate. The regulating plate squeezes the folding bladder, and the folding bladder is compressed, facilitating the cleaning of the position after the test.

[0017] (3) Scale members are installed on the side walls of the second connecting plate, facilitating the observation of the bending degree of the COF substrate sample. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 It is a schematic structural diagram of a COF substrate strength detection device proposed by the present invention;

[0020] Figure 2 It is a schematic structural diagram of the driving component proposed by the present invention;

[0021] Figure 3 It is Figure 2 a partial enlarged view of point A of

[0022] Figure 4 It is a front view of a COF substrate strength detection device proposed by the present invention;

[0023] Figure 5 It is Figure 4 a partial enlarged view of point B of

[0024] Figure 6 It is Figure 4 a partial enlarged view of point C of

[0025] Figure 7 It is Figure 4 a partial enlarged view of point D of

[0026] Figure 8 It is a schematic structural diagram of the second test component proposed by the present invention.

[0027] In the accompanying drawings: 1. bottom plate, 2. fixed plate, 3. connecting rod, 4. first connecting plate, 5. support plate, 6. driving assembly, 7. moving plate, 8. second testing assembly, 9. limiting assembly, 10. regulating and cleaning assembly, 11. hydraulic rod, 12. first driving plate, 13. second driving plate, 14. third driving plate, 15. third connecting plate, 16. first limiting member, 17. second limiting member, 18. upper inserting plate, 19. lower inserting plate, 20. pushing plate, 21. lifting plate, 22. clamping plate, 23. lower pressing plate, 24. regulating plate, 25. folding bladder, 26. air guide pipe, 27. first ventilation pipe, 28. cleaning plate, 29. first cleaning hole, 30. second ventilation pipe, 31. third ventilation pipe, 32. fourth ventilation pipe, 33. cavity, 34. elastic bladder, 35. telescopic rod, 36. second spring, 37. connecting disc, 38. clamping groove, 39. second testing rod, 40. second connecting plate, 41. scale member, 42. mounting plate, 43. second clamping plate, 44. first spring, 45. first clamping plate, 46. rubber pad, 47. first testing rod, 48. placing groove, 49. second cleaning hole. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0030] Such as Figures 1-8As shown in the figure, a COF substrate strength detection device includes a bottom plate 1 for support and fixation. On the upper wall of the bottom plate 1, a fixed plate 2 and a connecting rod 3 are installed. There are two groups of the fixed plates 2, which are symmetrically arranged on the upper wall of the bottom plate 1. On the upper side wall of any one group of the fixed plates 2, a first connecting plate 4 is installed. Between the first connecting plates 4, a support plate 5 is installed. The support plate 5 is connected to the upper end of the connecting rod 3. The fixed plate 2 and the connecting rod 3 support and fix the support plate 5. A driving component 6 is installed on the support plate 5. The lower end of the driving component 6 is connected to a moving plate 7. The connecting rod 3 movably penetrates through the moving plate 7. A second testing component 8 is installed on the bottom wall of the moving plate 7. The second testing component 8 is arranged at the upper end of the bottom plate 1. On the side wall of any one group of the fixed plates 2, a limiting component 9 is installed. The lower end of the limiting component 9 is arranged at the lower end of the moving plate 7. Between the adjacent fixed plates 2 and the limiting component 9, a regulating and cleaning component 10 is installed.

[0031] The driving component 6 includes a hydraulic rod 11, a first driving plate 12, a second driving plate 13, and a third driving plate 14. The hydraulic rod 11 is arranged on the support plate 5. The support plate 5 supports and fixes the hydraulic rod 11. The upper end of the first driving plate 12 is movably connected to the bottom wall of the support plate 5. The lower end of the second driving plate 13 is movably connected to the upper wall of the moving plate 7. The lower end of the first driving plate 12 and the upper end of the second driving plate 13 are movably connected. One end of the third driving plate 14 is movably connected to the connection part of the first driving plate 12 and the second driving plate 13. The other end of the third driving plate 14 is movably installed with a third connecting plate 15. The movable end of the hydraulic rod 11 is connected to the upper wall of the third connecting plate 15.

[0032] It should be noted that when the hydraulic rod 11 works to drive the third connecting plate 15 to move downward, the third connecting plate 15 drives the end of the third driving plate 14 to move downward. The third driving plate 14 rotates with the connection part of the second driving plate 13 and the first driving plate 12 as the rotation center. At the same time, the third driving plate 14 moves downward until the third driving plate 14 and the third connecting plate 15 are arranged at the same horizontal position. During this process, the third driving plate 14 pushes the first driving plate 12 and the second driving plate 13 to move. The first driving plate 12 rotates with the connection part with the support plate 5 as the rotation center. The second driving plate 13 rotates with the connection part with the moving plate 7 as the rotation center. At the same time, the first driving plate 12 and the second driving plate 13 push the moving plate 7 to move downward. The moving plate 7 moves downward under the limitation of the connecting rod 3. When the hydraulic rod 11 works to drive the third connecting plate 15 to move upward, the third connecting plate 15 drives the third driving plate 14 to move upward. The third driving plate 14 rotates reversely with the connection part of the second driving plate 13 and the first driving plate 12 as the rotation center. The third driving plate 14 drives the second driving plate 13 and the first driving plate 12 to move. The first driving plate 12 rotates reversely with the connection part with the support plate 5 as the rotation center. The second driving plate 13 rotates reversely with the connection part with the moving plate 7 as the rotation center. The second driving plate 13 and the first driving plate 12 drive the moving plate 7 to move upward along the connecting rod 3.

[0033] The limiting component 9 includes a first limiting member 16, a second limiting member 17, an upper insertion plate 18 and a lower insertion plate 19. The first limiting member 16 and the second limiting member 17 are both arranged on the side wall of the fixed plate 2, and the fixed plate 2 supports and fixes the first limiting member 16 and the second limiting member 17. The first limiting member 16 is arranged at the upper end of the second limiting member 17, and both the first limiting member 16 and the second limiting member 17 are of a cavity 33 structure with an opening on the side wall. One end of the upper insertion plate 18 is movably clamped in the first limiting member 16, and the other end of the upper insertion plate 18 is arranged outside the first limiting member 16. One end of the lower insertion plate 19 is movably clamped in the second limiting member 17, and the other end of the lower insertion plate 19 is arranged outside the second limiting member 17. Multiple groups of balls for reducing friction are arranged on the side walls of the upper insertion plate 18 and the lower insertion plate 19. A pushing plate 20 is installed between the upper insertion plate 18 and the lower insertion plate 19. A lifting plate 21 and a clamping plate 22 are installed on the side wall of the pushing plate 20. The lifting plate 21 is arranged at the upper end of the clamping plate 22, and the upper end of the lifting plate 21 is of an inclined structure.

[0034] The bottom wall of the moving plate 7 is provided with a lower pressing plate 23. The bottom wall of the lower pressing plate 23 is of an inclined structure, and the inclination angle is the same as that of the upper wall of the lifting plate 21. The lower pressing plate 23 is arranged directly above the lifting plate 21, and the inclined surface of the bottom wall of the lower pressing plate 23 is movably connected to the inclined surface of the upper end of the lifting plate 21. Multiple groups of balls for reducing friction are arranged on the inclined surface of the bottom wall of the lower pressing plate 23;

[0035] It should be noted that when the moving plate 7 moves downward, it can drive the lower pressing plate 23 to move downward. The lower pressing plate 23 drives the lifting plate 21. The movement of the lifting plate 21 is restricted by the first limiting member 16 and the second limiting member 17. Under the action of the lower pressing plate 23, the first limiting member 16 and the second limiting member 17, the lifting plate 21 moves towards the direction close to the fixed plate 2.

[0036] The regulation and cleaning component 10 includes a regulation plate 24. The regulation plate 24 is arranged on the side wall of the pushing plate 20, and the pushing plate 20 supports and fixes the regulation plate 24. A folding bladder 25 is installed between the regulation plate 24 and the fixed plate 2. The folding bladder 25 is arranged between the first limiting member 16 and the second limiting member 17. A sealed chamber is formed among the folding bladder 25, the fixed plate 2 and the regulation plate 24. An air duct 26 is installed on the side wall of the regulation plate 24, and the other end of the air duct 26 is connected to the side wall of the moving plate 7.

[0037] A first ventilation pipe 27 is provided inside the moving plate 7. Two cleaning plates 28 for cleaning are installed on the upper wall of the moving plate 7. The two cleaning plates 28 are symmetrically placed on the upper wall of the moving plate 7 and are both located at the lower end of the third connecting plate 15. A plurality of first cleaning holes 29 for gas flow are provided on the cleaning plate 28. The other end of the air guide pipe 26 is connected to one end of the first ventilation pipe 27 in a penetrating manner. The other end of the first ventilation pipe 27 is connected to the first cleaning holes 29 in a penetrating manner. A control valve is provided in the first ventilation pipe 27 to facilitate the control of gas flow;

[0038] It should be noted that when the lifting plate 21 moves towards the fixed plate 2, it drives the regulating plate 24 to move towards the fixed plate 2. The regulating plate 24 squeezes the folding bladder 25, and the folding bladder 25 is compressed. The control valve in the first ventilation pipe 27 is opened, and the internal gas is discharged from the first ventilation pipe 27 through the ventilation holes to clean the residue on the moving plate 7.

[0039] A second ventilation pipe 30 is provided on the side wall of the fixed plate 2. A third ventilation pipe 31 and a fourth ventilation pipe 32 are provided inside the bottom plate 1. A cavity 33 is also provided inside the bottom plate 1. An elastic bladder 34 is provided inside the cavity 33. The upper end of the second ventilation pipe 30 is connected to the sealed chamber inside the folding bladder 25 in a penetrating manner. The lower end of the second ventilation pipe 30 is connected to one end of the third ventilation pipe 31 in a penetrating manner. The other end of the third ventilation pipe 31 is connected to one end of the elastic bladder 34 in a penetrating manner. One end of the fourth ventilation pipe 32 is connected to the other end of the elastic bladder 34 in a penetrating manner. Control valves are provided in both the second ventilation pipe 30 and the fourth ventilation pipe 32 to facilitate the control of gas flow;

[0040] It should be noted that when the regulating plate 24 squeezes the folding bladder 25, the folding bladder 25 is compressed. The control valve in the second ventilation pipe 30 is opened, and the control valve in the fourth ventilation pipe 32 is closed. The gas inside the folding bladder 25 sequentially passes through the second ventilation pipe 30 and the third ventilation pipe 31 and then enters the elastic bladder 34. The elastic bladder 34 bulges and fills the cavity 33. The control valve in the second ventilation pipe 30 is closed, and the control valve in the fourth ventilation pipe 32 is opened. The gas inside the elastic bladder 34 enters the fourth ventilation pipe 32.

[0041] The second testing assembly 8 includes a telescopic rod 35 and a second spring 36. The upper end of the telescopic rod 35 and the upper end of the second spring 36 are both provided on the bottom wall of the moving plate 7. The second spring 36 is sleeved outside the telescopic rod 35. A connecting disc 37 is installed at the lower end of the second spring 36 and the lower end of the telescopic rod 35. A clamping groove 38 is provided on the side wall of the connecting disc 37. The clamping plate 22 is movably clamped in the clamping groove 38. A second testing rod 39 is installed at the center of the bottom wall of the connecting disc 37.

[0042] The bottom wall of the support plate 5 is symmetrically installed with second connecting plates 40. The driving assembly 6 is arranged between the second connecting plates 40. A scale member 41 is installed on the side wall of any group of the second connecting plates 40, which is convenient for observing the bending degree of the COF substrate sample. A clamping assembly is installed on the other side wall of the second connecting plate 40. The clamping assembly includes a mounting plate 42 and a second clamping plate 43. The mounting plate 42 is arranged above the second clamping plate 43. A first spring 44 is provided on the bottom wall of the mounting plate 42. The lower end of the first spring 44 is installed with a first clamping plate 45. The first clamping plate 45 is movably clamped on the side wall of the second connecting plate 40. Rubber pads 46 are provided on both the first clamping plate 45 and the second clamping plate 43. Both ends of the COF substrate sample to be tested are clamped between the first clamping plate 45 and the second clamping plate 43. The rubber pads 46 increase the friction force. The clamped COF substrate sample is arranged directly below the third connecting plate 15.

[0043] A first test rod 47 is installed at the center of the bottom wall of the third connecting plate 15. The first test rod 47 is arranged directly above the clamped COF substrate sample and is located at the center position of the clamped COF substrate sample. A placement groove 48 is provided on the upper wall of the bottom plate 1. The placement groove 48 is arranged directly below the second test rod 39. Another group of COF substrate samples to be detected is installed in the placement groove 48. Cleaning holes two 49 are provided on both side walls of the placement groove 48. The cleaning holes two 49 are connected to the other end of the fourth ventilation pipe 32 in a through manner. The gas in the fourth ventilation pipe 32 is discharged through the cleaning holes two 49 to clean the residues in the placement groove 48.

[0044] The specific use is as follows: Initially, the second spring 36 is in a compressed state, and the clamping plate 22 is clamped into the clamping groove 38. Both ends of the COF substrate sample to be tested are clamped between the first clamping plate 45 and the second clamping plate 43. The clamped COF substrate sample is arranged directly below the first test rod 47 of the third connecting plate 15 for bending test of the COF substrate sample. At this time, the rubber pads 46 increase the friction force. Another group of COF substrate samples to be detected is installed in the placement groove 48 for impact test of the COF substrate sample;

[0045] The hydraulic rod 11 works to drive the lower movement of the third connecting plate 15. The third connecting plate 15 drives the lower movement of the end of the third driving plate 14. The third driving plate 14 rotates with the connection point between the second driving plate 13 and the first driving plate 12 as the rotation center. At the same time, the third driving plate 14 moves downward until the third driving plate 14 and the third connecting plate 15 are located at the same horizontal position. During this process, the third connecting plate 15 drives the first test rod 47 to move downward. The first test rod 47 performs a bending test on the COF substrate sample clamped by the clamping assembly. Scale members 41 are installed on the side walls of the second connecting plate 40, facilitating the observation of the bending degree of the COF substrate sample. The third driving plate 14 pushes the first driving plate 12 and the second driving plate 13 to move. The first driving plate 12 rotates with the connection point with the support plate 5 as the rotation center, and the second driving plate 13 rotates with the connection point with the moving plate 7 as the rotation center. At the same time, the first driving plate 12 and the second driving plate 13 push the moving plate 7 to move downward, and the moving plate 7 moves downward under the limitation of the connecting rod 3;

[0046] When the moving plate 7 moves downward, it can drive the lower pressing plate 23 to move downward. The lower pressing plate 23 drives the lifting plate 21. The movement of the lifting plate 21 is restricted by the first limiting member 16 and the second limiting member 17. Under the action of the lower pressing plate 23, the first limiting member 16, and the second limiting member 17, the lifting plate 21 moves in the direction close to the fixing plate 2, driving the regulating plate 24 and the clamping plate 22 to move in the direction close to the fixing plate 2. The clamping plate 22 is withdrawn from the clamping groove 38 in the connecting disk 37. The second spring 36 pushes the connecting disk 37 to move downward rapidly. The connecting disk 37 drives the second test rod 39 to move downward rapidly. The second test rod 39 performs an impact test on the COF substrate sample in the placement groove 48;

[0047] At the same time, the regulating plate 24 squeezes the folding bladder 25. The folding bladder 25 is compressed. The control valve in the second ventilation pipe 30 is opened, and the control valves in the first ventilation pipe 27 and the fourth ventilation pipe 32 are closed. The gas in the folding bladder 25 sequentially passes through the second ventilation pipe 30 and the third ventilation pipe 31 and then enters the elastic bladder 34. The elastic bladder 34 bulges and fills the cavity 33. Then the control valve in the second ventilation pipe 30 is closed, and the control valve in the first ventilation pipe 27 is opened. The gas in the folding bladder 25 is discharged from the first ventilation hole through the first ventilation pipe 27 to clean the residue on the moving plate 7;

[0048] After the test, after taking out the COF substrate sample to be detected in the placement groove 48, the control valve in the fourth ventilation pipe 32 is opened. The gas in the elastic bladder 34 enters the fourth ventilation pipe 32, and the gas in the fourth ventilation pipe 32 is discharged through the second cleaning hole 49 to clean the residue in the placement groove 48;

[0049] The hydraulic rod 11 works to drive the connecting plate three 15 to move upward. The connecting plate three 15 drives the driving plate three 14 to move upward. The driving plate three 14 rotates reversely with the connection point between the driving plate two 13 and the driving plate one 12 as the rotation center. The driving plate three 14 drives the driving plate two 13 and the driving plate one 12 to move. The driving plate one 12 rotates reversely with the connection point with the support plate 5 as the rotation center. The driving plate two 13 rotates reversely with the connection point with the moving plate 7 as the rotation center. The driving plate two 13 and the driving plate one 12 drive the moving plate 7 to move upward along the connecting rod 3 and return to the initial position. Then, the samples to be tested are placed between the clamping components and in the placement groove 48 again respectively, and the next round of testing can be carried out.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A COF substrate strength detection device, characterized in that, It includes a bottom plate for support and fixation. On the upper wall of the bottom plate, a fixed plate and a connecting rod are installed. There are two groups of the fixed plates, symmetrically arranged on the upper wall of the bottom plate. On the upper side wall of any one group of the fixed plates, a first connecting plate is installed. Between the first connecting plates, a support plate is installed. The support plate is connected to the upper end of the connecting rod. A driving component is installed on the support plate. The lower end of the driving component is connected to a moving plate. The connecting rod movably penetrates through the moving plate. A second testing component is installed on the bottom wall of the moving plate. The second testing component is arranged at the upper end of the bottom plate. On the side wall of any one group of the fixed plates, a limiting component is installed. The lower end of the limiting component is arranged at the lower end of the moving plate. A regulating and cleaning component is installed between the adjacent fixed plate and the limiting component; The driving component includes a hydraulic rod, a first driving plate, a second driving plate and a third driving plate. The hydraulic rod is arranged on the support plate. The upper end of the first driving plate is movably connected to the bottom wall of the support plate. The lower end of the second driving plate is movably connected to the upper wall of the moving plate. The lower end of the first driving plate and the upper end of the second driving plate are movably connected. One end of the third driving plate is movably connected to the connection part of the first driving plate and the second driving plate. The other end of the third driving plate is movably installed with a third connecting plate. The movable end of the hydraulic rod is connected to the upper wall of the third connecting plate; The limiting component includes a first limiting piece, a second limiting piece, an upper inserting plate and a lower inserting plate. The first limiting piece and the second limiting piece are both arranged on the side wall of the fixed plate. The first limiting piece is arranged at the upper end of the second limiting piece. And both the first limiting piece and the second limiting piece are cavity structures with openings on the side walls. One end of the upper inserting plate is movably clamped in the first limiting piece. The other end of the upper inserting plate is arranged outside the first limiting piece. One end of the lower inserting plate is movably clamped in the second limiting piece. The other end of the lower inserting plate is arranged outside the second limiting piece. A pushing plate is installed between the upper inserting plate and the lower inserting plate. A lifting plate and a clamping plate are installed on the side wall of the pushing plate. The lifting plate is arranged at the upper end of the clamping plate. The upper end of the lifting plate is of an inclined structure; On the bottom wall of the moving plate, a lower pressing plate is provided. The bottom wall of the lower pressing plate is of an inclined structure, and the inclination angle is the same as that of the upper wall of the lifting plate. The lower pressing plate is arranged directly above the lifting plate. And the inclined surface of the bottom wall of the lower pressing plate is movably connected to the inclined surface of the upper end of the lifting plate. Multiple balls for reducing friction are arranged on the inclined surface of the bottom wall of the lower pressing plate.

2. The strength detection device for a COF substrate according to claim 1, wherein, The regulating and cleaning component includes a regulating plate. The regulating plate is arranged on the side wall of the pushing plate. A folding bladder is installed between the regulating plate and the fixed plate. The folding bladder is arranged between the first limiting piece and the second limiting piece. A sealed chamber is formed among the folding bladder, the fixed plate and the regulating plate. An air guide pipe is installed on the side wall of the regulating plate. The other end of the air guide pipe is connected to the side wall of the moving plate.

3. The strength detection device for a COF substrate according to claim 2, wherein, A first ventilation pipe is provided inside the moving plate. Two cleaning plates for cleaning are installed on the upper wall of the moving plate. The two cleaning plates are symmetrically placed on the upper wall of the moving plate and are both located below the third connecting plate. A plurality of first cleaning holes for gas circulation are provided on the cleaning plates. The other end of the air guide pipe is connected to one end of the first ventilation pipe in a through manner. The other end of the first ventilation pipe is connected to the first cleaning holes in a through manner. A control valve is provided in the first ventilation pipe.

4. The strength detection device for a COF substrate according to claim 3, wherein, A second ventilation pipe is provided on the side wall of the fixed plate. A third ventilation pipe and a fourth ventilation pipe are provided inside the bottom plate. A cavity is further provided inside the bottom plate. An elastic bladder is provided inside the cavity. The upper end of the second ventilation pipe is connected to the sealed chamber inside the folding bladder in a through manner. The lower end of the second ventilation pipe is connected to one end of the third ventilation pipe in a through manner. The other end of the third ventilation pipe is connected to one end of the elastic bladder in a through manner. One end of the fourth ventilation pipe is connected to the other end of the elastic bladder in a through manner. Control valves are provided in both the second ventilation pipe and the fourth ventilation pipe.

5. The strength detection device for a COF substrate according to claim 4, wherein The second testing assembly includes a telescopic rod and a second spring. The upper ends of the telescopic rod and the second spring are both located on the bottom wall of the moving plate. The second spring is sleeved outside the telescopic rod. A connecting disc is installed at the lower ends of the second spring and the telescopic rod. A clamping groove is provided on the side wall of the connecting disc. The clamping plate is movably clamped in the clamping groove. A second testing rod is installed at the center of the bottom wall of the connecting disc.

6. The strength detection device for a COF substrate according to claim 5, characterized in that, Two second connecting plates are symmetrically installed on the bottom wall of the support plate. The driving assembly is located between the two second connecting plates. A scale member is installed on the side wall of any one of the second connecting plates. A clamping assembly is installed on the other side wall of the second connecting plate. The clamping assembly includes a mounting plate and a second clamping plate. The mounting plate is located above the second clamping plate. A first spring is provided on the bottom wall of the mounting plate. The lower end of the first spring is installed with a first clamping plate. The first clamping plate is movably clamped on the side wall of the second connecting plate. Rubber pads are provided on both the first clamping plate and the second clamping plate.

7. The strength detection device for a COF substrate according to claim 6, characterized in that, A first testing rod is installed at the center of the bottom wall of the third connecting plate. The first testing rod is located directly above the clamped COF substrate sample and is at the center position of the clamped COF substrate sample. A placement groove is provided on the upper wall of the bottom plate. The placement groove is located directly below the second testing rod. Another COF substrate sample to be detected is installed in the placement groove. Cleaning holes are provided on both side walls of the placement groove. The cleaning holes are connected to the other end of the fourth ventilation pipe in a through manner.

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