Peel strength tester

Abstract

The utility model relates to the field of testing instruments, and discloses a peel strength tester. The peel strength tester comprises a working platform, a machine body, a tension meter assembly, a driving mechanism and a test board, the machine body is arranged on the working platform, the driving mechanism is arranged in the machine body, the tension meter assembly is arranged in front of the machine body and is in driving connection with the driving mechanism, and the driving mechanism drives the tension meter assembly to reciprocate up and down. The test board comprises an upper cover, a carrying table, a base and a fastening assembly, and the upper cover is provided with a U-shaped hollow groove; the test board is installed on the working platform through the base and located below the tension meter assembly, the fastening assembly comprises a polygonal cap screw and a spring, the polygonal cap screw penetrates through the upper cover and the spring to be detachably connected with the carrying table, and the two ends of the spring abut against the bottom face of the upper cover and the top face of the carrying table respectively. According to the peel strength tester, test samples with different specifications can be rapidly replaced for testing.

Description

Technical Field

[0001] The utility model relates to a testing instrument, in particular to a peeling strength testing instrument. Background Art

[0002] The peel strength tester is widely used in industrial production. It can be used for the peeling force test between the metal layer and the substrate of flexible boards such as flexible copper clad foil, flexible printed circuit boards, single-sided and double-sided flexible printed circuit boards, FFC flexible cables, FPC flexible circuit boards, etc. It can also be used for the peeling force test between the metal layer and the substrate of rigid boards such as rigid-flexible printed circuit boards, rigid copper clad laminates for printed circuits, and rigid printed circuits.

[0003] In the prior art, a peel strength tester includes a body, a driving mechanism, a tensile gauge assembly, and a test bench; however, the fixtures on the test benches in the prior art for fixing the test samples mostly use hexagon socket screws to fix the carrier and the upper cover that carry the test samples. Each time the test sample is replaced, it is necessary to use a tool to unscrew all the hexagon socket screws, and then remove the cover to replace the test sample. The fixture of this structure is cumbersome to operate during the process of replacing the test sample and has low work efficiency. Utility Model Content

[0004] Based on the above, the purpose of the utility model is to provide a peel strength tester for quickly replacing test samples.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A peel strength tester, comprising:

[0007] Work platform;

[0008] A fuselage is vertically arranged on the working platform, and a dynamometer assembly is arranged in front of the fuselage;

[0009] A driving mechanism is arranged in the fuselage, an output end of the driving mechanism is connected to a driving plate, the dynamometer assembly is connected to the driving plate, and the driving mechanism drives the dynamometer assembly to reciprocate up and down;

[0010] The test bench comprises an upper cover, a carrier, a base and a fastening assembly. The test bench is installed on the working platform and is located below the dynamometer assembly. The fastening assembly comprises a polygonal cap screw and a spring. The polygonal cap screw passes through the upper cover and the spring to be detachably connected to the carrier. Two ends of the spring are respectively abutted against the bottom surface of the upper cover and the top surface of the carrier.

[0011] As a preferred solution of a peel strength tester, the upper cover is provided with a U-shaped hollow groove, and the test bench also includes a linear bearing and an axle pin. The linear bearing is embedded in the four corners of the carrier, one end of the axle pin is sleeved in the linear bearing, and the other end of the axle pin is fixedly connected to the four corners of the upper cover, and the axle pin can move linearly up and down in the linear bearing.

[0012] As a preferred solution of a peel strength tester, the test bench also includes a slider and a track matching the slider, and the length of the track is smaller than the length of the slider, the top surface of the slider is fixedly connected to the bottom surface of the carrier, the bottom surface of the track is fixedly connected to the top surface of the base, and the slider can reciprocate in a straight line on the track.

[0013] As a preferred solution for a peel strength tester, limit blocks are installed at both ends of the platform, one end of the limit block is flush with the top surface of the platform, and the other end extends vertically downward to both ends of the track. The limit block limits the maximum stroke of the slider on the track.

[0014] As a preferred solution of a peel strength tester, the driving mechanism also includes a trapezoidal screw, a guide light shaft, a base plate and a fixed plate. There are two guide light shafts. The trapezoidal screw and the guide light shaft are spaced apart and vertically arranged on the top surface of the base plate. A threaded hole matching the trapezoidal screw is provided on the driving plate. The driving plate is sleeved on the guide light shaft and threadedly connected to the trapezoidal screw. The fixed plate is installed above the trapezoidal screw and the guide light shaft.

[0015] As a preferred solution of a peel strength tester, the driving mechanism also includes a reducer and a motor. The reducer is installed on the bottom surface of the base plate and is drivingly connected to the trapezoidal screw. The motor is installed on the working platform. The reducer is drivingly connected to the motor. The motor drives the trapezoidal screw to rotate through the reducer, thereby driving the dynamometer assembly connected to the driving plate to move up and down.

[0016] As a preferred solution of a peel strength tester, the tensile gauge assembly includes a digital tensile gauge, an adjusting piece, a connecting plate and an elastic clip. One side of the adjusting piece is movably mounted on the digital tensile gauge, and the other side is fixedly connected to the connecting plate. A hook is provided at the lower end of the digital tensile gauge, and the elastic clip is connected to the hook.

[0017] As a preferred solution of a peel strength tester, a long hollow groove is provided on the front of the fuselage, and the tensile gauge assembly is connected to the driving plate through the long hollow groove.

[0018] As a preferred solution for a peel strength tester, the body is also provided with a plurality of control switches and a control display panel, the control switch is used to control the up and down movement of the tensile gauge assembly and the number of revolutions output by the motor, and the control display panel is used to display the parameters adjusted by the control switch.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a peeling strength tester, wherein an upper cover and a carrier are detachably connected via a fastening assembly, and the upper cover can be quickly separated from the carrier, making it more convenient and quick to replace test samples of different specifications and different materials, simplifying the complicated work of using tools to loosen and tighten screws to separate the upper cover and the carrier in the traditional design, reducing working time and improving working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of the peel strength tester provided by the utility model at a first viewing angle;

[0022] Figure 2 An exploded view of the overall structure of the peel strength tester provided by the utility model at a first viewing angle;

[0023] Figure 3 An exploded view of the structure of the test bench provided in the first embodiment of the utility model;

[0024] Figure 4 A schematic diagram of a driving mechanism provided by the utility model;

[0025] Figure 5 This is a schematic diagram of a dynamometer assembly provided by the utility model.

[0026] In the figure: 1. body; 11. long hollow slot; 12. control switch; 13. control display panel; 2. driving mechanism; 21. fixing plate; 22. driving plate; 23. motor; 24. bottom plate; 25. reducer; 26. guide light axis; 27. trapezoidal lead screw; 28. threaded hole; 3. dynamometer assembly; 31. connecting plate; 32. digital dynamometer; 33. hook; 34. elastic clip; 35. adjustment piece; 4. test bench; 41. upper cover; 411. U-shaped hollow slot; 42; carrier; 421. limit block; 422. shaft pin; 423. linear bearing; 424. slider; 425 track; 44. base; 45. fastening assembly; 451. polygonal cap screw; 452. spring; 5. working platform. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0028] like Figures 1 to 5 As shown, the present embodiment provides a peel strength tester, which includes a working platform 5, a body 1, a driving mechanism 2, a tensile gauge assembly 3 and a test bench 4; the body 1 is vertically arranged on the working platform 5, and a long strip hollow slot 11 is provided in the front of the body 1, the driving mechanism 2 is arranged inside the body 1 and fixedly connected to the working platform 5, the output end of the driving mechanism 2 is driven and connected to a driving plate 22, the tensile gauge assembly 3 is arranged in the front of the body 1 and is connected to the driving plate 22 through the long strip hollow slot 11, and the driving mechanism 2 can make the tensile gauge assembly 3 reciprocate up and down within the travel range of the long strip hollow slot 11; the test bench 4 includes an upper cover 41, a carrier 42, a base 44 and a fastening assembly 45, and the test bench 4 includes a ... The test bench 4 is fixedly mounted on the work platform 5 through a base 44 and is located below the dynamometer assembly 3. The test bench 4 is used to place the test sample. A U-shaped hollow groove 411 is also provided on the upper cover 41. The fastening assembly 45 includes a polygonal cap screw 451 and a spring 452. The fastening assembly 45 is preferably composed of two sets. Two hollow annular holes are provided at relative positions of the upper cover 41, and two threaded holes are provided at relative positions of the hollow annular holes on the carrier 42. The polygonal cap screw 451 passes through the hollow annular hole on the upper cover 41 and the spring 452 and is threadedly connected to the threaded hole on the carrier 42. The two ends of the spring 452 are respectively abutted against the bottom surface of the upper cover 41 and the top surface of the carrier 42, and the diameter of the spring 452 is larger than the diameter of the threaded hole.

[0029] like Figure 3As shown, when installing the upper cover 41 and the carrier 42, the polygonal cap screw 451 is passed through the hollow annular hole on the upper cover 41 and the spring 452 in sequence, and then is threadedly connected with the threaded hole 28 set on the carrier 42, and the polygonal cap screw 451 is rotated and tightened; when it is necessary to test the sample, the polygonal cap screw 451 is rotated and loosened, and the upper cover 41 will move upward with the elastic force of the spring 452, thereby separating from the carrier 42 and forming a sufficient gap between the upper cover 41 and the carrier 42, and then the sample is placed on the carrier 42 through the gap between the upper cover 41 and the carrier 42, and then the polygonal cap screw 451 is rotated and tightened, the upper cover 41 moves downward, the spring 452 is compressed, and the sample is fastened between the upper cover 41 and the carrier 42, and the driving mechanism 2 drives the tensile gauge assembly 3 to move downward, and the tensile gauge assembly 3 is connected to the metal foil or other attached materials on the sample through the U-shaped hollow groove 411, and the tensile gauge assembly 3 is driven upward by the driving mechanism 2 again to complete the test of the sample. When we need to change the sample for testing, we can loosen the polygonal cap screw 451 in the same way, and separate the upper cover 41 from the carrier 42 to form a certain gap under the elastic action of the spring 452. We can take out the tested sample and place the new sample on the carrier 42, and then tighten the polygonal cap screw 451. The sample replacement is completed. In the above structure, the detachable connection between the upper cover 41 and the carrier 42 by the fastening assembly 45 makes it more convenient and quick to replace the test samples of different specifications and different materials, simplifying the traditional complicated work of using a screwdriver to loosen the screws to separate the upper cover 41 and the carrier 42, reducing working time and improving work efficiency.

[0030] An annular groove is provided at the four corners of the carrier 42, and an axle pin 422 is vertically connected to the four corners corresponding to the upper cover 41. A linear bearing 423 matching the axle pin 422 is embedded in the annular groove. The axle pin 422 can move up and down in the linear bearing 423. The axle pin 422 and the linear bearing 423 provide guidance and support for the upper cover 41, so that the upper cover 41 always maintains its position relative to the carrier 42 without deviation during the process of moving up or down, which is conducive to more stable fastening of the sample to the carrier 42.

[0031] The test bench 4 also includes a slider 424 and a track 425 matching the slider 424. The top surface of the slider 424 is fixedly connected to the bottom surface of the carrier 42 by screws, and the bottom surface of the track 425 is fixedly connected to the top surface of the base 44 by screws. The length of the track 425 is less than the length of the slider 424, and the slider 424 is sleeved on the track 425 for linear reciprocating motion. During the sample testing process, when the tensile gauge assembly 3 pulls the metal foil or other attached materials on the sample to move upward, as the tensile gauge assembly 3 continues to rise, the carrier 42 will also move on the track 425 with the slider 424, ensuring that the tension is always kept on the same straight line, without force decomposition, thereby increasing the measurement accuracy.

[0032] A limit block 421 is provided at each end of the platform 42, one end of the limit block 421 is flush with the top surface of the platform 42, and the other end extends vertically downward to the two ends of the track 425, and the maximum extension length does not exceed the bottom plane of the track 425; in this structure, the limit block 421 can limit the maximum stroke of the slider 424 in linear motion on the track 425, thereby preventing the slider 424 from leaving the track 425.

[0033] like Figure 4 As shown, the driving mechanism 2 also includes a motor 23, a reducer 25, a base plate 24, a fixed plate 21, a trapezoidal lead screw 27 and a guide light shaft 26; preferably, there are two guide light shafts 26, the motor 23 is fixedly mounted on the working platform 5, the reducer 25 is fixedly mounted below the base plate 24, and the output end of the motor 23 is drivingly connected to the input end of the reducer 25, the guide light shaft 26 is fixedly arranged on the top surface of the base plate 24 at a relative interval, an annular through hole is provided on the fixed plate 21, the trapezoidal lead screw 27 passes through the annular through hole and is drivingly connected to the output end of the reducer 25, and a corresponding position of the driving plate 22 is provided with a matching trapezoidal lead screw 27 A threaded hole 28 and two guide holes, the driving plate 22 is sleeved on the trapezoidal lead screw 27 and the guide light shaft 26 through the threaded hole 28 and the guide holes, the fixed plate 21 is installed on the upper ends of the trapezoidal lead screw 27 and the guide light shaft 26, and the upper end surface of the trapezoidal lead screw 27 is movably connected to the fixed plate 21 through a bearing arranged on the fixed plate 21, and the upper end of the guide light shaft 26 is fixedly connected to the fixed plate 21; in this structure, the motor 23 drives the trapezoidal lead screw 27 to rotate through the reducer 25, thereby driving the driving plate 22 to move up and down, and the stability of the peeling strength tester during operation is ensured by fixing the two guide light shafts 26.

[0034] like Figure 5 As shown, the dynamometer assembly 3 includes a digital dynamometer 32, an adjusting member 35, a connecting plate 31 and an elastic clip 34. The adjusting member 35 is movably connected to the back of the digital dynamometer 32 by means of a snap-in adjustment method. The adjusting member 35 can adjust the height of the digital dynamometer 32 relative to the test bench 4 according to the situation that the stroke of the up and down movement of the driving plate 22 is too small or too large. One side of the connecting plate 31 is fixedly connected to the adjusting member 35, and the other side is fixedly connected to the driving plate 22 through a long hollow groove 11; a hook 33 is also provided under the digital dynamometer 32, and an elastic clip 34 is hung on the hook 33. The elastic clip 34 is used to clamp the metal foil or other attached materials on the test sample; the use of the digital dynamometer 32 is more accurate than the traditional pointer dynamometer assembly, thereby improving the accuracy of the measurement results.

[0035] A plurality of control switches 12 and a control display panel 13 are also provided on the front of the body 1. The control switch 12 is used to control the output speed of the motor 23 and the stroke of the tensile gauge assembly 3 moving up and down. The parameters of the operation control switch 12 and the parameters of the torque of the motor 23 will be displayed on the control display panel 13, which is convenient for the operator to adjust the peel strength tester.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A peel strength tester, characterized in that: include: Work platform; A fuselage is vertically arranged on the working platform, and a dynamometer assembly is arranged in front of the fuselage; A driving mechanism is arranged in the fuselage, an output end of the driving mechanism is connected to a driving plate, the dynamometer assembly is connected to the driving plate, and the driving mechanism drives the dynamometer assembly to reciprocate up and down; The test bench comprises an upper cover, a carrier, a base and a fastening assembly. The test bench is installed on the working platform and is located below the dynamometer assembly. The fastening assembly comprises a polygonal cap screw and a spring. The polygonal cap screw passes through the upper cover and the spring to be detachably connected to the carrier. Two ends of the spring are respectively abutted against the bottom surface of the upper cover and the top surface of the carrier.

2. The peel strength tester according to claim 1, characterized in that: The upper cover is provided with a U-shaped hollow groove, and the test bench also includes a linear bearing and an axle pin. The linear bearing is embedded in the four corners of the carrier, one end of the axle pin is sleeved in the linear bearing, and the other end of the axle pin is fixedly connected to the four corners of the upper cover, and the axle pin can move linearly up and down in the linear bearing.

3. The peel strength tester according to claim 2, characterized in that: The test bench also includes a slider and a track matching the slider, and the length of the track is smaller than the length of the slider. The top surface of the slider is fixedly connected to the bottom surface of the carrier, and the bottom surface of the track is fixedly connected to the top surface of the base. The slider can reciprocate linearly on the track.

4. The peel strength tester according to claim 3, characterized in that: Limit blocks are installed at both ends of the platform, one end of the limit block is flush with the top surface of the platform, and the other end extends vertically downward to both ends of the track. The limit block limits the maximum travel of the slider on the track.

5. The peel strength tester according to claim 1, characterized in that: The driving mechanism also includes a trapezoidal lead screw, a guide light shaft, a base plate and a fixed plate. There are two guide light shafts. The trapezoidal lead screw and the guide light shaft are spaced apart and vertically arranged on the top surface of the base plate. A threaded hole matching the trapezoidal lead screw is provided on the driving plate. The driving plate is sleeved on the guide light shaft and threadedly connected to the trapezoidal lead screw. The fixed plate is installed above the trapezoidal lead screw and the guide light shaft.

6. The peel strength tester according to claim 5, characterized in that: The driving mechanism also includes a reducer and a motor. The reducer is installed on the bottom surface of the base plate and is drivingly connected to the trapezoidal lead screw. The motor is installed on the working platform. The reducer is drivingly connected to the motor. The motor drives the trapezoidal lead screw to rotate through the reducer, thereby driving the dynamometer assembly connected to the driving plate to move up and down.

7. The peel strength tester according to any one of claims 1 to 6, characterized in that: The dynamometer assembly includes a digital dynamometer, an adjusting member, a connecting plate and an elastic clip. One side of the adjusting member is movably mounted on the digital dynamometer, and the other side is fixedly connected to the connecting plate. A hook is provided at the lower end of the digital dynamometer, and the elastic clip is connected to the hook.

8. The peel strength tester according to claim 7, characterized in that: A long strip hollow slot is provided on the front of the fuselage, and the dynamometer assembly is connected to the driving plate via the long strip hollow slot.

9. The peel strength tester according to claim 6, characterized in that: The fuselage is also provided with a plurality of control switches and a control display panel. The control switch is used to control the up and down movement of the dynamometer assembly and the number of revolutions output by the motor. The control display panel is used to display the parameters adjusted by the control switch.

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