Search

CN-121977928-A - Material toughness resistance detection device for computer motherboard

CN121977928ACN 121977928 ACN121977928 ACN 121977928ACN-121977928-A

Abstract

The invention discloses a material toughness resistance detection device for a computer motherboard, which relates to the technical field of computer motherboard detection, and specifically comprises a detection base, a driving mechanism, two clamping mechanisms which are symmetrically arranged, a fixing mechanism for fixing the motherboard to be detected, and a moving mechanism for driving the two clamping mechanisms to synchronously move in opposite directions. According to the invention, through the clamping mechanism, the two-dimensional self-adaptive compensation of the angle deflection and the horizontal displacement in the main board deformation process is realized, so that the stress concentration of the clamping end is eliminated, the failure is ensured to occur only in a target detection area, the problem of local stress concentration of a single-point pressure head is avoided through the fixing mechanism, meanwhile, the loading force data is acquired in real time by means of the pressure sensor, the dynamic closed-loop compensation of the load fluctuation is realized, the stable and uniform stress of the main board in the whole detection process is ensured, the real anti-toughness performance of the main board base material is accurately represented, and the detection result is more accurate.

Inventors

  • JIANG SONGTAO
  • LIU XIANGYUN
  • DONG JUNYU
  • ZHANG LU

Assignees

  • 西藏慧企科技有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (10)

  1. 1. The utility model provides a computer motherboard is with anti toughness detection device of material which characterized in that includes: A detection base (1); the driving mechanism (2) is arranged on the detection base (1), and the driving end of the driving mechanism is positioned above the detection base (1); The two clamping mechanisms (3) are arranged, and the clamping mechanisms (3) are used for respectively clamping and fixing the edges of the two sides of the main board; The fixing mechanism (4) is configured on the movable end of the driving mechanism (2), the fixing mechanism (4) is used for fixing the main board to be tested, and after the two clamping mechanisms (3) fix the main board to be tested, the fixing mechanism (4) can drive the main board to be tested to bend and deform under the driving of the driving mechanism (2); the moving mechanism (5) is arranged on the detection base (1), the two clamping mechanisms (3) are symmetrically arranged on the moving mechanism (5), and the moving mechanism (5) is used for driving the two clamping mechanisms (3) to synchronously move in opposite directions.
  2. 2. The device for detecting the toughness of the material for the computer main board according to claim 1, wherein the driving mechanism (2) comprises a suspension frame (6), a bearing plate (7), an electric cylinder (8), a driving frame (9), a first guide rod (10) and a guide sliding sleeve (11), wherein one end of the suspension frame (6) is fixedly connected to the detection base (1), the bearing plate (7) is connected to the other end of the suspension frame (6), the electric cylinder (8) is longitudinally arranged on the bearing plate (7) along the detection base (1), the movable end of the electric cylinder (8) extends to the surface of the detection base (1) and is fixedly connected with the driving frame (9), the driving frame (9) extends along the width direction of the detection base (1), the extending length of the driving frame (9) is larger than the width of the main board to be detected, and the driving frame (9) is of a U-shaped structure, and the inside of the driving frame is suitable for accommodating the main board to be detected.
  3. 3. The device for detecting toughness resistance of a material for a computer motherboard according to claim 2, wherein two first guide rods (10) and two guide sliding sleeves (11) are respectively provided, the two first guide rods (10) respectively correspond to the two guide sliding sleeves (11), the two guide sliding sleeves (11) are respectively connected to two side positions of the bearing plate (7), the two first guide rods (10) are arranged along the longitudinal direction of the detection base (1), one end of each first guide rod (10) is connected with the driving frame (9), and the other end of each first guide rod penetrates through the corresponding guide sliding sleeve (11) and is in sliding fit with the corresponding guide sliding sleeve (11).
  4. 4. The device for detecting the toughness of a material for a computer motherboard according to claim 2, wherein the fixing mechanism (4) comprises an upper pressing rod (12), a lower pressing rod (13), a fastening bolt (14) and a second guide rod (15), wherein the upper pressing rod (12) and the lower pressing rod (13) are arranged along the extending direction of the driving frame (9) and are positioned in the driving frame (9), a fixing channel (16) for placing the motherboard to be detected is formed between the upper pressing rod (12) and the lower pressing rod (13), elastic layers (17) are arranged on the outer surfaces of the upper pressing rod (12) and the lower pressing rod (13), the surfaces of the elastic layers (17) are in movable contact with the surface of the motherboard to be detected, two ends of the upper pressing rod (12) are fixedly connected with upper pressing blocks (18), two ends of the lower pressing rod (13) are fixedly connected with lower pressing blocks (19), and the two upper pressing blocks (18) respectively correspond to the two lower pressing blocks (19); The two fastening bolts (14) are arranged at two ends of the fixed channel (16), the tail ends of the fastening bolts (14) sequentially penetrate through the driving frame (9), the upper pressing blocks (18) and the corresponding lower pressing blocks (19), the driving frame, the upper pressing blocks (18) are in threaded fit, the driving frame (9) and the corresponding lower pressing blocks (19) are in rotary connection, one side of each upper pressing block (18) is fixedly connected with the guide plate (20), the second guide rods (15) are arranged at two sides and are fixedly connected to the driving frame (9) along the extending direction of the fastening bolts (14), the second guide rods (15) penetrate through the corresponding guide plates (20) and are in sliding fit with the corresponding guide plates, and the upper pressing rods (12) are provided with pressure sensors III (21).
  5. 5. The device for detecting toughness resistance of a material for a computer motherboard according to claim 4, wherein the fixing mechanism (4) further comprises a first pressure sensor (22), a buffer rod (23) and a bearing spring (24), wherein the first pressure sensor (22) is arranged at two ends of the driving frame (9) respectively, the bottoms of the first pressure sensors (22) are fixedly connected with the buffer rod (23), one end of the buffer rod (23) away from the first pressure sensor (22) penetrates through the driving frame (9) and is in sliding connection with the driving frame (9), the bearing spring (24) is sleeved outside each buffer rod (23), two ends of the bearing spring (24) are connected with the driving frame (9) and the first pressure sensor (22) respectively, and the sensing end of the first pressure sensor (22) is in movable contact with the corresponding guide plate (20).
  6. 6. The device for detecting toughness resistance of a material for a computer motherboard according to claim 1, wherein a detection station (25) for placing a motherboard to be detected is formed between two clamping mechanisms (3), the clamping mechanisms (3) comprise a supporting base (26), a transverse sliding rod (27), a transverse moving plate (28), a clamping component, a pressing component and a deflection component, the supporting base (26) is provided with a transverse part and a vertical part, the transverse sliding rod (27) is slidably connected to the vertical part of the supporting base (26) and slides along the extending direction of the transverse part of the supporting base (26), one end of the transverse sliding rod (27) is connected with the transverse moving plate (28), the deflection component is arranged on the transverse moving plate (28), the clamping component is arranged on the deflection component, and the pressing component is arranged on the clamping component.
  7. 7. The device for detecting toughness resistance of a material for a computer motherboard according to claim 6, wherein the deflection assembly comprises a fixed bearing (29), a fixed shaft (30), a deflection bearing (31) and a deflection base (32), wherein the fixed bearing (29) is fixedly connected to a transverse moving plate (28), the fixed shaft (30) is fixedly connected to the fixed bearing (29), the deflection bearing (31) is fixedly connected to the deflection base (32), and the deflection bearing (31) is rotatably connected to the fixed bearing (29).
  8. 8. The device for detecting toughness of materials for computer mainboards according to claim 7, wherein the clamping assembly comprises an upper clamping plate (33), a lower clamping plate (34), a longitudinal guide rail (35), a pressure sensor II (36) and a pressing spring (37), wherein the longitudinal guide rail (35) is fixedly connected to the deflection base (32), the lower clamping plate (34) is fixedly connected to the longitudinal guide rail (35), a guide groove (38) is formed in the longitudinal guide rail (35), the upper clamping plate (33) and the lower clamping plate (34) are arranged in parallel, and extend along the width direction of the detection base (1), a guide protrusion (39) is fixedly connected to one side of the upper clamping plate (33), the upper clamping plate (33) is slidably connected to the guide groove (38) through the guide protrusion (39), clamping pads (40) are respectively arranged on opposite side surfaces of the upper clamping plate (33) and the lower clamping plate (34), a side surface of the upper clamping plate (33) facing the lower clamping plate (34) is provided with a guide groove (38), and the pressure sensor II (36) is connected to the bottom of the support base (41).
  9. 9. The device for detecting the toughness resistance of the material for the computer motherboard according to claim 8, wherein the pressing component comprises a driving connecting rod (42), a hinged plate (43), a pressing bolt (44) and a fixing bracket (45), wherein the fixing bracket (45) is fixedly connected to a longitudinal guide rail (35), two hinging blocks (46) are fixedly connected to one side surface of the upper clamping plate (33) far away from the lower clamping plate (34), the driving connecting rod (42) is two, the two driving connecting rods (42) respectively correspond to the two hinging blocks (46), the end parts of the two driving connecting rods (42) are rotationally connected through a rotating shaft (47), and one end of each driving connecting rod (42) is rotationally connected with the corresponding hinging block (46); the tail of the pressing bolt (44) is penetrated with a fixing bracket (45) and is in threaded fit with the fixing bracket (45), the hinged plate (43) is rotatably connected with the tail of the pressing bolt (44), and the hinged plate (43) is connected with a rotating shaft (47).
  10. 10. The device for detecting toughness resistance of a material for a computer motherboard according to claim 6, wherein the moving mechanism (5) comprises a long-strip-shaped groove plate (48), a bidirectional threaded rod (49), a sliding block (50), a fixed block (51), a sliding rod (52), a sliding sleeve block (53), a driving belt pulley (54), a driven belt pulley (55), a toothed belt (56) and a driving motor (57), wherein the long-strip-shaped groove plate (48) is fixedly connected to the detection base (1), a moving sliding groove (58) is formed in the long-strip-shaped groove plate (48) along the extending direction of the long-strip-shaped groove plate, the bidirectional threaded rod (49) is rotatably connected to the moving sliding groove (58), sliding rods (52) are arranged at two sides of the long-strip-shaped groove plate (48), the sliding rods (52) are connected to the detection base (1) through the fixed block (51), the sliding blocks (50) are symmetrically and slidingly connected to the moving sliding groove (58), the two sliding blocks (50) are correspondingly connected to the two ends of the sliding rod (50) on the supporting base (26) in a threaded manner, one end of the bidirectional threaded rod (49) penetrates through the movable sliding groove (58) and is coaxially connected with the driven belt wheel (55), a longitudinal mounting plate (59) is fixedly connected to the detection base (1), the driving motor (57) is mounted on the longitudinal mounting plate (59), the driving belt wheel (54) is rotatably connected to the longitudinal mounting plate (59), and the toothed belt (56) is sleeved on the driving belt wheel (54) and the driven belt wheel (55).

Description

Material toughness resistance detection device for computer motherboard Technical Field The invention relates to the technical field of computer motherboard detection, in particular to a device for detecting toughness resistance of a material for a computer motherboard. Background In the technical field of toughness resistance detection of computer main board substrates, the main board substrates are polymer composite materials for large-scale mass production, the toughness resistance is determined by a plurality of factors such as a resin formula, glass cloth specifications, a warp-weft structure, a curing process, interlayer binding force, a filler, a flame retardant system and the like, and the toughness resistance of the substrates of different batches and different brands is obviously different, so that the high requirements on the loading stability, stress uniformity and detection precision of the toughness resistance detection are provided. When in detection operation, an operator is required to place the computer mainboard to be detected on the detection platform, the to-be-detected area of the mainboard corresponds to the position of the pressing end driven by the cylinder on the detection platform, and then the two ends of the mainboard are clamped and fixed by the clamp on the detection platform. However, in the practical application process, when the main board is pressed to generate bending deformation, the clamped two ends of the main board can generate corresponding tilting displacement and angle deflection along with the bending deformation, while the prior art generally adopts a metal rigid clamp or a rigid pressure head to apply a fixed clamping force to the edge of the main board so as to realize positioning of the main board, the rigid clamp has no self-adaptive compensation structure, and cannot generate corresponding position and angle adaptation along with the bending deformation of the main board, so that serious stress concentration phenomenon occurs in the contact area of the clamp and the main board in the main board deformation process, further, the whole stress distribution of the main board is uneven, failure of non-detection target areas such as early cracking, layering and the like is easily caused at the clamping end of the main board, and secondly, in the reciprocating bending process of the main board, the contact pressure between the pressing end and the surface of the main board can generate fluctuation along with the bending deformation amount of the main board and the change of the rebound performance of a base material, and stable and uniform pressing load cannot be applied to the main board, so that the stress state of the main board in the detection process is unstable, the real anti-toughness performance of the main board base material itself cannot be accurately represented, and deviation occurs. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a device for detecting the toughness resistance of a material for a computer motherboard. In order to achieve the above purpose, the present invention adopts the following technical scheme: The material toughness resistance detection device for the computer main board comprises a detection base, a driving mechanism, two clamping mechanisms, a fixing mechanism and a moving mechanism, wherein the driving mechanism is arranged on the detection base, the driving end of the driving mechanism is positioned above the detection base, the two clamping mechanisms are used for respectively clamping and fixing two side edges of the main board, the fixing mechanism is arranged on the movable end of the driving mechanism and used for fixing the main board to be detected, after the two clamping mechanisms are used for fixing the main board to be detected, the fixing mechanism can drive the main board to be detected to bend and deform under the driving of the driving mechanism, the moving mechanism is arranged on the detection base, the two clamping mechanisms are symmetrically arranged on the moving mechanism, and the moving mechanism is used for driving the two clamping mechanisms to move synchronously and oppositely. The driving mechanism comprises a suspension, a bearing plate, an electric cylinder, a driving frame, a first guide rod and a guide sliding sleeve, wherein one end of the suspension is fixedly connected to a detection base, the bearing plate is connected to the other end of the suspension, the electric cylinder is longitudinally arranged on the bearing plate along the detection base, the movable end of the electric cylinder extends towards the surface of the detection base and is fixedly connected with the driving frame, the driving frame extends along the width direction of the detection base, the extending length of the driving frame is larger than the width of a main board to be detected, and the driving frame is of a U-shaped structure and is internally suitable for accommod