Device for detecting toughness of new material of computer mainboard

Abstract

The invention relates to a computer mainboard new material toughness detection device which comprises a base, the base is provided with a clamping mechanism used for fixing a detected sample, and the base is provided with a bending mechanism used for bending resistance detection, a friction mechanism used for friction resistance detection and a pressure applying mechanism used for puncture resistance detection. The clamping mechanism comprises two clamping parts, and the bending mechanism is arranged at one end of a connecting line of the two clamping parts. According to the technical scheme, the base serves as a mounting base of the clamping mechanism, the bending mechanism, the friction mechanism, the pressure applying mechanism and the driving mechanism, and the bending mechanism, the friction mechanism and the pressure applying mechanism can synchronously operate under the action of the driving mechanism and jointly perform classified detection on a detected sample clamped on the clamping mechanism, so that function integration and power integration are realized, and the detection efficiency is improved. While the function diversification of the whole structure is improved, the structure of the device is compact by integrating power, and various detection items can be simultaneously carried out on a detected sample on the same equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a toughness detection device for new materials of computer mainboards. Background Art

[0002] The computer motherboard is generally a rectangular circuit board on which the main circuit systems of the computer are installed, generally including BIOS chip, I / O control chip, keyboard and panel control switch interface, indicator light connector, expansion slot, DC power supply connector of the motherboard and plug-in card, etc. It is usually made of copper-clad laminate, which is made by impregnating the reinforcing material with resin, covering one or both sides with copper foil, and hot pressing to form a plate-like material called copper-clad laminate. During the production process, it needs to go through drilling and pressing processes, and during the assembly process, it needs to be plugged in and out of the card slot. It needs to have a certain mechanical structural strength (i.e. toughness). This mechanical strength is mainly related to the reinforcing material. With the development of science and technology, the reinforcing material is upgraded and replaced. After using new materials, the mechanical structural strength of the new computer motherboard needs to be tested; The testing items usually include: Bending resistance, that is, a certain part of the computer motherboard is bent back and forth several times, and then the external structure and internal structure of the computer motherboard are observed and tested; Friction resistance, that is, using a hard object to rub back and forth a certain part of the computer motherboard, and then observing the external morphology of the part; Puncture resistance, that is, using a sharp object to press a certain part of the computer motherboard several times, and then observing the external morphology of the part; Since the existing testing equipment has a single function and can only implement one of the above testing items, different testing items need to be carried out on different testing equipment. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a computer motherboard new material toughness detection device to solve the problem that the detection equipment in the prior art has a single function and can only realize a certain detection item as mentioned above, and different detection items need to be performed on different detection equipment.

[0004] The present invention is achieved through the following technical solutions: A computer motherboard new material toughness testing device comprises a base, the base is provided with a clamping mechanism for fixing a sample to be tested, the base is provided with a bending mechanism for testing bending resistance, a friction mechanism for testing friction resistance and a pressure mechanism for testing puncture resistance; The clamping mechanism includes two clamping parts, and the bending mechanism is arranged at one end of the line connecting the two clamping parts. The bending mechanism is used to fix one side of the sample to be tested, and is rotatably connected to the base with the clamping part as the axis; The friction mechanism and the pressure mechanism are located on one side of the line connecting the two clamping parts; A driving mechanism is also installed on the base, and the driving mechanism is used to drive the bending mechanism, the friction mechanism and the pressure mechanism to operate synchronously.

[0005] It is further defined that the clamping portion includes two pressure rods extending perpendicularly and parallel to the base, a gap for clamping the sample to be tested is provided between the two pressure rods, and the two gaps located in the two clamping portions are located on the same plane.

[0006] It is further defined that the bending mechanism includes a rotating plate, the rotating plate is connected to a rotating shaft, the rotating shaft is coaxially arranged with the clamping portion, and is rotatably connected to the base; A fixing card is installed on the rotating plate. The fixing card is located on one side of the clamping portion and has an opening facing the clamping portion.

[0007] It is further defined that a linear slide groove is provided on the rotating plate, an extension line of the linear slide groove intersects vertically with the rotating axis, the fixed card is slidably connected in the linear slide groove, an elastic connecting piece is provided between the fixed card and the rotating axis, and under the action of the elastic connecting piece, the fixed card is located at one end of the linear slide groove close to the rotating axis.

[0008] It is further defined that the fixing card includes a support rod and a plurality of sub-cards slidably sleeved on the support rod, one end of the support rod is inserted into the linear slide groove and connected to the elastic connecting piece; A first support spring is arranged between two adjacent sub-cards, and the first support spring is sleeved on a support rod, and the support rod is a screw rod, and an adjusting nut is threadedly matched at one end of the support rod away from the rotating plate; Guide rods are arranged on both sides of the support rod, and the guide rods sequentially penetrate the plurality of sub-cards, and the plurality of sub-cards are slidably connected to the guide rods; Guide grooves extending parallel to the linear slide groove are provided on both sides of the linear slide groove, and the ends of the two guide rods are respectively slidably connected in the two guide grooves.

[0009] It is further defined that the friction mechanism includes a support shaft, which extends vertically out of the surface of the base and is rotatably connected to the base, the support shaft is connected to a rotating wheel at one end away from the base, the center of the rotating wheel is fixedly connected to the support shaft, and a friction portion protruding from the wheel surface is provided on one side of the rotating wheel.

[0010] It is further defined that a support tube is sleeved on the support shaft, one end of the support tube is fixedly connected to the base, the pressure mechanism is connected to the other end of the support tube, and the pressure mechanism includes a mounting block fixed on the support tube and protruding toward one side of the clamping mechanism; The mounting block is provided with a first through hole penetrating the mounting block on the side facing the rotating wheel, the mounting block is connected with a mounting tube on the side facing away from the rotating wheel, the mounting tube is communicated with the first through hole, the mounting block is provided with a second through hole on the side facing the clamping mechanism, the second through hole is communicated with the first through hole; A sliding block is slidably connected in the first through hole, a second supporting spring is arranged in the mounting tube, and when the second supporting spring is in a freely extended state, the end of the sliding block protrudes out of the first through hole and is located on one side of the rotating wheel; An extrusion block is slidably connected in the second through hole, a first guiding slope is provided on one end of the extrusion block facing the sliding block, a second guiding slope is provided on one side of the sliding block facing the extrusion block, the first guiding slope is parallel to and in contact with the second guiding slope, and a magnetic adsorption structure is provided between the first guiding slope and the second guiding slope; A pressing plate is connected to the side of the rotating wheel, and the first through hole is located on the rotation track of the pressing plate.

[0011] It is further defined that the pressure plate is rotatably mounted on a rotating wheel, and a groove for accommodating the pressure plate is provided on the rotating wheel, and the groove is located on a side of the pressure plate facing the rotating direction of the rotating wheel.

[0012] It is further defined that the driving mechanism includes a driving gear, a driven gear meshing with the driving gear, and a driving part for driving the driving gear to rotate, the driven gear is connected to the support shaft, the driving gear is rotatably mounted on the base, and the driving part is fixedly mounted on the base and is transmission-connected to the driving gear; The driven gear is connected with a toggle rod, the toggle rod extends out of the driven gear along the radial direction of the driven gear and is connected with a toggle block; The rotating shaft is connected to a support rod, one end of the support rod is connected to the rotating shaft, and the other end of the support rod extends outward; The support rod intersects with the rotation track of the toggle block when the fixed card opening is opposite to the clamping mechanism.

[0013] It is further defined that the toggle block includes a fixed pin and a collar, the fixed pin is fixedly connected to the toggle rod, and the collar is rotatably connected to the fixed pin.

[0014] The beneficial effects of the present invention are: The invention relates to a device for testing toughness of new materials for computer motherboards. The base serves as the installation foundation for a clamping mechanism, a bending mechanism, a friction mechanism, a pressure mechanism and a driving mechanism. The bending mechanism, the friction mechanism and the pressure mechanism can operate synchronously under the action of the driving mechanism, and jointly classify and test the tested samples clamped on the clamping mechanism, thereby realizing functional integration and power integration, improving the overall structural functional diversity, and integrating power to make the device structure compact, so as to meet the requirements of performing multiple testing items on the tested samples on the same device at the same time.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a front view of the present invention; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB; Figure 5 for Figure 1 A magnified view of middle; Figure 6 for Figure 4 Enlarged view of middle C; Figure 7 Schematic diagram of the transmission structure of the driving mechanism; Figure 8 for Figure 7 Enlarged view of middle D; In the figure: 100. Base; 201, pressure rod; 202, locking plate; 301, rotating plate; 302, rotating shaft; 303, linear slide; 304, elastic connector; 305, daughter card; 306, support rod; 307, first support spring; 308, adjusting nut; 309, guide rod; 310, guide groove; 401, support shaft; 402, rotating wheel; 403, friction part; 501, support tube; 502, mounting block; 503, sliding block; 504, extrusion block; 505, mounting tube; 506, second supporting spring; 507, pressing plate; 508; magnetic adsorption structure; 601, driving gear; 602, driven gear; 603, driving unit; 604, toggle rod; 605, support rod; 606, fixing pin; 607, sleeve ring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0022] See also Figure 1-8The present invention provides a technical solution: a toughness detection device for new materials of computer motherboards, comprising a base 100, on which a clamping mechanism for fixing a sample to be detected is arranged, and a bending mechanism for bending resistance detection, a friction mechanism for friction resistance detection and a pressure mechanism for puncture resistance detection are installed on the base 100; the clamping mechanism comprises two clamping parts, the bending mechanism is arranged at one end of the line connecting the two clamping parts, the bending mechanism is used to fix one side of the sample to be detected, and is rotatably connected to the base 100 with the clamping part as the axis; the friction mechanism and the pressure mechanism are located on one side of the line connecting the two clamping parts; a driving mechanism is also installed on the base 100, and the driving mechanism is used to drive the bending mechanism, the friction mechanism and the pressure mechanism to operate synchronously.

[0023] The base 100 serves as the installation base for the clamping mechanism, the bending mechanism, the friction mechanism, the pressure mechanism and the driving mechanism, and the bending mechanism, the friction mechanism and the pressure mechanism can be synchronously operated under the action of the driving mechanism, and jointly classify and test the samples clamped on the clamping mechanism, thereby realizing functional integration and power integration, improving the overall structural function diversification, and integrating power to make the device structure compact, so as to meet the requirements of performing multiple test items on the samples on the same device at the same time; The clamping mechanism is composed of two clamping parts, which can improve the clamping and fixing effect of the sample to be tested, and a suspended area is formed between the two clamping parts of the sample to be tested, and the action positions of the friction mechanism and the pressure mechanism are opposite to the area, so that when the friction resistance and puncture resistance of the sample to be tested are tested, the sample to be tested can be slightly deformed by the pressure, which is close to the state in the actual production and use process, so that the test result is close to the actual state; In addition, the two clamping parts will form two fixing lines for fixing the sample to be tested, so that the clamped part of the side of the sample to be tested can maintain a stable state when it is bent.

[0024] In this embodiment, the clamping portion includes two pressure rods 201 extending perpendicularly and parallel to the base 100 , a gap for clamping the sample to be tested is provided between the two pressure rods 201 , and the two gaps in the two clamping portions are located on the same plane.

[0025] The gap between the two pressure bars 201 is used to place the sample to be tested, and its width should be equal to or slightly smaller than the thickness of the sample to be tested, so that the sample to be tested can be firmly fixed between the two pressure bars 201. A locking plate 202 can also be provided to lock the pressure bar 201. The locking plate 202 has multiple locking holes opposite to the pressure bar 201. After the sample to be tested is clamped and fixed, the locking plate 202 is sleeved on the end of the pressure bar 201 through the locking hole to lock the end of the pressure bar 201, so that the relative position of the two pressure bars 201 remains constant when under pressure, thereby improving the clamping effect on the sample to be tested.

[0026] In this embodiment, the bending mechanism includes a rotating plate 301, and a rotating shaft 302 is connected to the rotating plate 301. The rotating shaft 302 is coaxially arranged with the clamping portion and is rotatably connected to the base 100; A fixing card is installed on the rotating plate 301 . The fixing card is located at one side of the clamping portion and has an opening facing the clamping portion.

[0027] The rotating plate 301 is rotatably matched with the base 100, and a fixing card is arranged on the rotating plate 301 to fix the side of the sample to be tested, wherein the rotating shaft 302 of the rotating plate 301 is located on the rotating shaft 302 and is coaxially arranged with the clamping part, that is, the axis of the rotating shaft 302 is located in the middle of the two pressure rods 201. When the rotating plate 301 is driven to rotate, it will rotate with the rotating shaft 302 as the axis, and will drive the side of the sample to be tested to bend through the fixing card. The side of the sample to be tested can be folded by reciprocatingly driving the rotating plate 301, etc., so as to test the anti-bending performance of the sample to be tested.

[0028] In this embodiment, a linear slide groove 303 is provided on the rotating plate 301, and the extension line of the linear slide groove 303 intersects the rotating shaft 302 vertically. The fixed card is slidably connected in the linear slide groove 303, and an elastic connecting member 304 is provided between the fixed card and the rotating shaft 302. Under the action of the elastic connecting member 304, the fixed card is located at one end of the linear slide groove 303 close to the rotating shaft 302.

[0029] The fixing card is slidably matched with the linear slide groove 303, that is, it can slide along the linear slide groove 303 to adjust the distance between the fixing card and the clamping mechanism according to the length of different test samples; The fixing card is connected to the rotating shaft 302 by means of an elastic connector 304. The elastic connection can apply a pulling force to the rotating shaft 302 to the fixing card, so that the fixing card can maintain a clamping state with the side of the sample to be tested.

[0030] In this embodiment, the fixing card includes a support rod 306 and a plurality of sub-cards 305 slidably mounted on the support rod 306. One end of the support rod 306 is inserted into the linear slide groove 303 and connected to the elastic connector 304. A first support spring 307 is provided between two adjacent subcards 305. The first support spring 307 is sleeved on a support rod 306. The support rod 306 is a screw rod. An end of the support rod 306 away from the rotating plate 301 is threadedly matched with an adjusting nut 308. Guide rods 309 are provided on both sides of the support rod 306. The guide rods 309 pass through the plurality of sub-cards 305 in sequence. The plurality of sub-cards 305 are slidably connected to the guide rods 309. Guide grooves 310 extending parallel to the linear slide groove 303 are provided on both sides of the linear slide groove 303 , and the ends of the two guide rods 309 are slidably connected in the two guide grooves 310 respectively.

[0031] The support rod 306 serves as the installation base for the plurality of daughter cards 305, and the plurality of daughter cards 305 are slidably fitted on the support rod 306, and two adjacent daughter cards 305 are supported by the first support spring 307. When a daughter card 305 located at the outer side is pressed, the plurality of first support springs 307 are synchronously compressed to reduce the relative distance between the plurality of daughter cards 305, and can be adjusted according to the width of the sample to be tested; The two guide rods 309 form a stable structure for the plurality of daughter cards 305 on the support rod 306 , so that the orientation of the plurality of daughter cards 305 remains constant when the plurality of daughter cards 305 rotate along with the rotating plate 301 .

[0032] In this embodiment, the friction mechanism includes a support shaft 401, which extends vertically out of the surface of the base 100 and is rotatably connected to the base 100. The support shaft 401 is connected to a rotating wheel 402 at one end away from the base 100. The center of the rotating wheel 402 is fixedly connected to the support shaft 401, and a friction portion 403 protruding from the wheel surface is provided on one side of the rotating wheel 402.

[0033] The support shaft 401 is rotatably mounted on the base 100, and a friction mechanism is formed by connecting the rotating wheel 402 and the friction part 403 on the rotating wheel 402. When the support shaft 401 rotates, it will periodically drive the friction part 403 to rub the surface of the sample to be tested, which is used to test the anti-friction property of the sample to be tested.

[0034] In this embodiment, a support tube 501 is sleeved on the support shaft 401, one end of the support tube 501 is fixedly connected to the base 100, and the pressure mechanism is connected to the other end of the support tube 501. The pressure mechanism includes a mounting block 502 fixed on the support tube 501 and protruding toward one side of the clamping mechanism; The mounting block 502 has a first through hole on the side facing the rotating wheel 402, and a mounting tube 505 is connected to the side of the mounting block 502 away from the rotating wheel 402, and the mounting tube 505 is connected to the first through hole. The mounting block 502 has a second through hole on the side facing the clamping mechanism, and the second through hole is connected to the first through hole. A sliding block 503 is slidably connected in the first through hole, a second supporting spring 506 is arranged in the mounting tube 505, and when the second supporting spring 506 is in a freely extended state, the end of the sliding block 503 protrudes out of the first through hole and is located on one side of the rotating wheel 402; An extrusion block 504 is slidably connected in the second through hole, a first guiding slope is provided at one end of the extrusion block 504 facing the sliding block 503, a second guiding slope is provided at one side of the sliding block 503 facing the extrusion block 504, the first guiding slope is parallel to and in contact with the second guiding slope, and a magnetic adsorption structure 508 is provided between the first guiding slope and the second guiding slope; A pressing plate 507 is connected to the side of the rotating wheel 402 , and the first through hole is located on the rotation track of the pressing plate 507 .

[0035] The support tube 501 is fixedly connected to the base 100, and serves as an external support of the support shaft 401, thereby improving the structural stability of the support shaft 401. At the same time, a mounting block 502 is provided, wherein the mounting block 502 is provided with a first through hole and a second through hole as a mounting structure for the sliding block 503 and the extrusion block 504. In addition, the sliding block 503 is kept extending out of the first through hole by a second support spring 506 provided in the mounting tube 505, that is, it is in a relatively fixed state with the rotating wheel 402. During the rotation process of the rotating wheel 402, the sliding block 503 can be periodically squeezed and pushed by the pressing plate 507, and the sliding block 503 can be reciprocated in the first through hole in cooperation with the second support spring 506. In the reciprocating sliding process, the extrusion block 504 is pressed by the cooperation of the first guide bevel and the second guide bevel, so as to push the extrusion block 504 out of the second through hole. Among them, a magnetic adsorption structure 508 is set between the first guide slope and the second guide slope. The magnetic adsorption structure 508 may include two magnetic blocks respectively installed on the first guide slope and the second guide slope, and the magnetic poles on the opposite sides of the two magnetic blocks are the same, that is, the extrusion block 504 and the sliding block 503 remain connected and slidingly matched.

[0036] In this embodiment, the pressing plate 507 is rotatably mounted on the rotating wheel 402 . The rotating wheel 402 is provided with a groove for accommodating the pressing plate 507 . The groove is located on the side of the pressing plate 507 facing the rotating direction of the rotating wheel 402 .

[0037] The pressure plate 507 can be stored in the groove by rotating, wherein the groove is located on the side of the pressure plate 507 facing the rotation direction of the rotating wheel 402. When the pressure plate 507 is in a state of extending out of the groove, one side of the pressure plate 507 is against the side wall of the groove. When the rotating wheel 402 rotates, the side wall of the groove will support the pressure plate 507. At the same time, the pressure plate 507 can be rotatably stored in the groove, and the anti-puncture detection function can be selected.

[0038] In this embodiment, the driving mechanism includes a driving gear 601, a driven gear 602 meshing with the driving gear 601, and a driving part 603 for driving the driving gear 601 to rotate, the driven gear 602 is connected to the support shaft 401, the driving gear 601 is rotatably mounted on the base 100, and the driving part 603 is fixedly mounted on the base 100 and is transmission-connected to the driving gear 601; The driven gear 602 is connected to a toggle rod 604, the toggle rod 604 extends out of the driven gear 602 along the radial direction of the driven gear 602, and is connected to a toggle block; The rotating shaft 302 is connected to a support rod 605, one end of the support rod 605 is connected to the rotating shaft 302, and the other end extends outward; The support rod 605 intersects with the rotation track of the toggle block when the fixed card opening is opposite to the clamping mechanism.

[0039] The driving gear 601 is connected to the driving part 603 by transmission. The driving part 603 can be a driving motor. The output shaft of the driving motor is connected to the center of the driving gear 601. The driving gear 601 can rotate under the drive of the driving motor, that is, it drives the driven gear 602 meshing with it to rotate, and then drives the support column connected to the driven gear 602 to rotate, so as to drive the two functional tests of anti-friction detection and anti-puncture detection; At the same time, the rotating shaft 302 is driven to rotate by cooperating with the toggle rod 604 and the toggle block and the support rod 605 connected to the driven gear 602. When the toggle block and the support rod 605 maintain contact, the rotating shaft 302 can be pushed to rotate. When the toggle block and the support rod 605 are out of contact, the rotating shaft 302 can be pushed to rotate in the reverse direction under the elastic reset action of the sample being tested, so that the position of the support rod 605 is restored.

[0040] In this embodiment, the toggle block includes a fixing pin 606 and a collar 607 . The fixing pin 606 is fixedly connected to the toggle rod 604 , and the collar 607 is rotatably connected to the fixing pin 606 .

[0041] The fixing pin 606 is in direct contact with the support rod 605, and the two are in a sliding friction state when cooperating with the support rod 605. By sleeve-arranging a collar 607 on the fixing pin 606, the friction between the fixing pin 606 and the support rod 605 can be reduced during friction, thereby reducing friction damage. The collar 607 may be replaced by a rotating structure such as a bearing.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A computer motherboard new material toughness testing device, comprising a base, on which a clamping mechanism for fixing a sample to be tested is provided, characterized in that: The base is provided with a bending mechanism for testing bending resistance, a friction mechanism for testing friction resistance, and a pressure mechanism for testing puncture resistance; The clamping mechanism includes two clamping parts, and the bending mechanism is arranged at one end of the line connecting the two clamping parts. The bending mechanism is used to fix one side of the sample to be tested, and is rotatably connected to the base with the clamping part as the axis; The friction mechanism and the pressure mechanism are located on one side of the line connecting the two clamping parts; A driving mechanism is also installed on the base, and the driving mechanism is used to drive the bending mechanism, the friction mechanism and the pressure mechanism to operate synchronously.

2. The computer motherboard new material toughness detection device according to claim 1 is characterized by: The clamping part comprises two pressure rods extending perpendicularly to the base and in parallel, a gap for clamping the sample to be tested is provided between the two pressure rods, and the two gaps in the two clamping parts are located on the same plane.

3. The computer motherboard new material toughness detection device according to claim 2, characterized in that: The bending mechanism comprises a rotating plate, the rotating plate is connected with a rotating shaft, the rotating shaft is coaxially arranged with the clamping part and is rotatably connected to the base; A fixing card is installed on the rotating plate. The fixing card is located on one side of the clamping portion and has an opening facing the clamping portion.

4. The computer motherboard new material toughness detection device according to claim 3 is characterized by: A linear slide groove is provided on the rotating plate, and an extension line of the linear slide groove intersects the rotating shaft perpendicularly. The fixed card is slidably connected in the linear slide groove. An elastic connecting piece is provided between the fixed card and the rotating shaft, and under the action of the elastic connecting piece, the fixed card is located at one end of the linear slide groove close to the rotating shaft.

5. The computer motherboard new material toughness detection device according to claim 4, characterized in that: The fixing card includes a support rod and a plurality of sub-cards slidably sleeved on the support rod, one end of the support rod is inserted into the linear slide groove and connected to the elastic connecting piece; A first support spring is arranged between two adjacent sub-cards, and the first support spring is sleeved on a support rod, and the support rod is a screw rod, and an adjusting nut is threadedly matched at one end of the support rod away from the rotating plate; Guide rods are arranged on both sides of the support rod, and the guide rods sequentially penetrate the plurality of sub-cards, and the plurality of sub-cards are slidably connected to the guide rods; Guide grooves extending parallel to the linear slide groove are provided on both sides of the linear slide groove, and the ends of the two guide rods are respectively slidably connected in the two guide grooves.

6. The computer motherboard new material toughness detection device according to claim 1, characterized in that: The friction mechanism includes a support shaft, which extends vertically out of the base surface and is rotatably connected to the base. The support shaft is connected to a rotating wheel at one end away from the base. The center of the rotating wheel is fixedly connected to the support shaft, and a friction portion protruding from the wheel surface is provided on one side of the rotating wheel.

7. The computer motherboard new material toughness detection device according to claim 6, characterized in that: A support tube is sleeved on the support shaft, one end of the support tube is fixedly connected to the base, and the pressure mechanism is connected to the other end of the support tube, and the pressure mechanism includes a mounting block fixed on the support tube and protruding toward one side of the clamping mechanism; The mounting block is provided with a first through hole penetrating the mounting block on the side facing the rotating wheel, the mounting block is connected with a mounting tube on the side facing away from the rotating wheel, the mounting tube is communicated with the first through hole, the mounting block is provided with a second through hole on the side facing the clamping mechanism, the second through hole is communicated with the first through hole; A sliding block is slidably connected in the first through hole, a second supporting spring is arranged in the mounting tube, and when the second supporting spring is in a freely extended state, the end of the sliding block protrudes out of the first through hole and is located on one side of the rotating wheel; An extrusion block is slidably connected in the second through hole, a first guiding slope is provided on one end of the extrusion block facing the sliding block, a second guiding slope is provided on one side of the sliding block facing the extrusion block, the first guiding slope is parallel to and in contact with the second guiding slope, and a magnetic adsorption structure is provided between the first guiding slope and the second guiding slope; A pressing plate is connected to the side of the rotating wheel, and the first through hole is located on the rotation track of the pressing plate.

8. The computer motherboard new material toughness detection device according to claim 7, characterized in that: The pressing plate is rotatably mounted on the rotating wheel. The rotating wheel is provided with a groove for accommodating the pressing plate. The groove is located on the side of the pressing plate facing the rotating direction of the rotating wheel.

9. The computer motherboard new material toughness detection device according to any one of claims 3 to 5, characterized in that: The driving mechanism includes a driving gear, a driven gear meshing with the driving gear, and a driving part for driving the driving gear to rotate, wherein the driven gear is connected to the support shaft, the driving gear is rotatably mounted on the base, and the driving part is fixedly mounted on the base and is transmission-connected with the driving gear; The driven gear is connected with a toggle rod, the toggle rod extends out of the driven gear along the radial direction of the driven gear and is connected with a toggle block; The rotating shaft is connected to a support rod, one end of the support rod is connected to the rotating shaft, and the other end of the support rod extends outward; The support rod intersects with the rotation track of the toggle block when the fixed card opening is opposite to the clamping mechanism.

10. The computer motherboard new material toughness detection device according to claim 9, characterized in that: The toggle block comprises a fixing pin and a collar, wherein the fixing pin is fixedly connected to the toggle rod, and the collar is rotatably connected to the fixing pin.

Images