A mobile phone edge shell strength inspection device based on image processing

Abstract

The present invention discloses a mobile phone edge shell strength inspection device based on image processing, which relates to the field of detection technology. The technical scheme includes: a base; a station conversion chute is provided on its upper surface, and a working platform is slidably placed inside the station conversion chute; the station conversion chute is sequentially a loading station, a detection station and a unloading station in the sliding upward direction; a station conversion drive is installed on the base and connected to the working platform. A detection side-changing clamping assembly is installed on the working platform. Two extrusion detection assemblies are provided and fixedly arranged on the base relative to each other. A microscopic camera unit is fixedly arranged on the base. A control component is electrically connected to the station conversion drive, the detection side-changing clamping assembly, the extrusion detection assembly and the microscopic camera unit. The present invention can complete the clamping, releasing and rotating side-changing clamping of the mobile phone shell by detecting the side-changing clamping assembly, thereby avoiding the human error of naked eye judgment and increasing the objectivity of the judgment.

Description

Technical Field

[0001] The invention relates to the field of detection technology, and in particular to a mobile phone edge shell strength inspection device based on image processing. Background Art

[0002] Mobile phones, also known as mobile phones, were also commonly known as big brothers in the early days. They are portable telephone terminals that can be used in a wide range. Mobile phones are divided into several types: 2G, 3G, and now have developed to the 5G era.

[0003] Mobile phone shells are mainly made of plastic shells. Due to the high yield rate of plastic shells, people do not pay much attention to the inspection of mobile phone structural parts. Since 2014, the domestic mobile phone metal shell / middle frame has been greatly developed, and the mobile phone structural parts have developed towards precision. At the same time, people have higher and higher requirements for the surface quality of mobile phone shells. Any scratches, burrs, discoloration, strength and other defects on the mobile phone shell will put manufacturers at a disadvantage in the fierce market competition.

[0004] The strength of the edge shell of a mobile phone is a very important indicator because it is directly related to the degree of protection of the mobile phone by the user during use. Generally speaking, we can evaluate the strength of the edge shell of a mobile phone from the following aspects: Material selection: At present, the common edge shell materials of mobile phones on the market include plastic, metal, fiberglass, etc. Among them, the edge shell of a mobile phone made of metal has the highest strength, but the price is relatively high. Although the strength of fiberglass is lower, it also has a certain resistance to falling. Structural design: The structural design of the edge shell of a mobile phone directly affects its strength. For example, some mobile phones use a full metal frame design, which not only provides a good grip and stability, but also increases the protection effect of the screen to a certain extent. Test standard: my country's GB / T24235-2017 "Requirements for the Anti-Drop Performance of Mobile Phones" has detailed provisions for the test methods and requirements for the strength of the edge shell of a mobile phone. This standard stipulates the maximum impact force and deformation that the edge shell of a mobile phone can withstand under certain conditions. Through this standard, we can judge the strength of the edge shell of a mobile phone to a certain extent. Drop resistance test: In addition to the above official test standards, some third-party organizations will conduct actual drop resistance tests. For example, organizations such as the US Consumer Reports and the UK Express Test conduct a series of drop tests on mobile phones to evaluate the strength of the phone's edge shell. In general, the strength of a phone's edge shell is a comprehensive reflection of multiple factors. When choosing a mobile phone, we should not only look at the appearance design and price, but also comprehensively consider its material, structural design, and drop resistance to obtain better protection.

[0005] However, there are few devices for edge quality inspection of mobile phone casings on the market today, and they are mainly processed by human eye inspection. The strength of mobile phone casings has a great impact on mobile phones. A strong casing is of great significance to the protection of mobile phones. Existing inspection equipment cannot inspect the edges of mobile phone casings. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a mobile phone edge shell strength inspection device based on image processing, which is used to detect the edge strength of the mobile phone shell. The mobile phone edge shell strength inspection device based on image processing comprises:

[0007] The base may be a rectangular tabletop structure or a frame-welded support structure, wherein the rectangular tabletop structure is supported and fixed by the support structure.

[0008] The upper surface of the base is provided with a station conversion chute, and a working platform is placed inside the station conversion chute for sliding. The station conversion chute can be a strip-shaped through-groove structure, and the station conversion chute is sequentially arranged as a loading station, a testing station, and a discharging station when sliding upward. The working platform slides inside the station conversion chute, so that it can alternately stay at the loading station, the testing station, and the discharging station. In this way, the loading, testing, and discharging of the mobile phone shell are completed.

[0009] The station conversion drive can be installed on the base and connected to the working platform to drive the working platform to move, so that the working platform can be switched between the loading station, the inspection station and the unloading station. The station conversion drive can be driven by a cylinder, an electric telescopic rod, or a combination of a screw and a motor, which will not be described in detail here.

[0010] The detection side-changing clamping assembly is installed on the working platform. The detection side-changing clamping assembly is used to position and alternately clamp the mobile phone shell, so as to facilitate strength testing of the non-clamping edge.

[0011] Two extrusion detection components are provided and fixedly arranged on the base relatively to each other and located on both sides of the horizontal direction of the station conversion chute, where the sliding direction of the working platform is the longitudinal direction and the transverse direction is perpendicular to the longitudinal direction. The connecting line of the two extrusion detection components is perpendicular to the connecting line between the two opposite side clamping members, and the extrusion detection components are used to perform strength detection on the non-clamping side of the mobile phone housing.

[0012] The microscope camera unit is fixedly arranged on the base and is located above the detection station. It is used to photograph the edge of the mobile phone shell after detection. The microscope camera unit can be a laser microscope. The microscope camera unit can be set according to the shooting range. If the shooting range of the microscope camera unit is large, the microscope camera unit can be fixed. When the shooting range of the microscope camera unit is small, the microscope camera unit can be moved horizontally and vertically. This is the existing technology and will not be described in detail here.

[0013] The control part can be electrically connected to the station conversion drive part, the detection side-changing clamping component, the extrusion detection component and the microscopic camera unit. The control part is used to control the detection side-changing clamping component to clamp the mobile phone shell on the working platform; the control part controls the station conversion drive part to drive the working platform to move the detection station, and the control part controls the extrusion detection component to move the non-clamping edge of the mobile phone shell and apply a preset pressure to squeeze. The microscopic camera unit microscopically photographs to obtain microscopic photos of the edge, and the control part controls the detection side-changing clamping component to change the side of the mobile phone shell to clamp the mobile phone shell; squeeze and microscopically photograph to obtain microscopic photos of the edge. After the detection is completed, the station conversion drive part drives the working platform to enter the unloading station, and controls the detection side-changing clamping component to release the mobile phone shell to complete the unloading. The loading and unloading can be done manually. The control part obtains microscopic photos, and processes the microscopic photos to obtain texture display pictures. The microscopic photo processing can specifically include adjusting the brightness, brightness, saturation, etc., which will not be described in detail here. The texture display pictures are analyzed to obtain the length l of the crack line of each detection edge i , calculate and obtain the strength damage value S of the detection edge, the And judge whether the strength damage value S is greater than a preset standard rupture damage value S 标 If yes, it is judged as unqualified, if no, it is judged as qualified. The standard rupture damage value S 标 It can be set according to actual testing experience, material, thickness, requirements, etc. The details will not be elaborated here.

[0014] Preferably, the support structure can be a support leg welded to a frame, and each support leg is connected by a connecting rod to increase the stability of the support leg support. The bottom of the support leg can be fixedly connected to a pad, and the pad can be provided with a mounting hole, and the support leg can be fixed to the ground at the production line position or the detection position by passing a bolt through the mounting hole.

[0015] Preferably, the support structure can be a support leg welded to a frame, and each support leg is connected by a connecting rod to increase the stability of the support leg support. The bottom of the support leg can be rotatably provided with a universal wheel, and a brake plate for braking is provided on the universal wheel, so as to facilitate the adjustment of the base position, and the details are not repeated here.

[0016] Preferably: a folding cover is provided on the workstation conversion chute, and two folding covers are provided, one end of the folding cover is fixedly connected to one end of the workstation conversion chute, and the other end of the folding cover is fixedly connected to the working platform, so that the workstation conversion chute can be covered.

[0017] Preferably, a guide rail can be longitudinally fixed inside the station conversion chute, and the number of the guide rails is preferably two, which can be fixedly connected to the bottom of the base, and the two ends of the guide rails are fixedly connected to the bottom of the base by screws. A slider is fixedly connected to the bottom of the working platform, and the slider slides and nests on the guide rail. The setting of the guide rail increases the stability and smoothness of the sliding of the working platform. Of course, the working platform and the station conversion chute can also be slidably nested through grooves and protrusions.

[0018] Preferably: the detection side change clamping assembly may further include a driving platform, an opposite side clamping member, a rotating support platform and a motor. The driving platform is rotatably arranged inside the working platform. The driving platform may be a circular plate-shaped structure. A driving rail groove is provided on the upper surface of the driving platform. The driving rail groove is a symmetrical closed annular groove structure, and its wire diameter changes smoothly and unidirectionally with the change of angle within the flat angle, so that the distance between the driving rail groove at the same straight line position and the rotation center of the driving platform changes with the rotation of the driving platform. There are two opposite side clamps, which are slidably located inside the working platform. The side clamps are slidably connected to the working platform, and the sliding direction is the radial position of the driving platform. The top of the side clamps extends out of the upper surface of the working platform. The side clamps can be Z-shaped or straight rod structures. The bottom of the side clamps slides and is embedded in the driving rail groove, and is radially slidably embedded in the working platform with the driving platform. The bottom of the side clamps can be rotatably provided with rollers, which are rotatably embedded in the driving rail groove. The setting of the rollers can reduce the friction between the side clamps and the driving platform, so that the sliding of the side clamps is smoother and the equipment is avoided. The cross-section of the driving rail groove can be a convex structure, and the rollers are rotated and nested inside to avoid the side clamps from sliding out. The upper surface of the working platform is rotatably provided with a rotating support platform, which is located between the two side clamps. The rotating support platform is rotated to the rotation center position of the driving platform through the rotating shaft. The driving platform, the rotating shaft and the motor installed inside the working platform are connected to rotate in one direction. The one-way rotation directions of the driving platform and the rotating shaft are opposite. The rotating shaft and the driving platform can be connected by a one-way bearing, and the setting directions are opposite. This is the prior art, and it will not be described in detail here. The forward drive of the motor can make the rotating support platform driving platform rotate. At this time, the rotating support platform does not rotate. The rotation of the driving platform drives the opposite side clamping parts embedded in the driving rail groove to slide symmetrically on the upper surface of the working platform. The two opposite side clamping parts are close to each other and clamp the mobile phone shell placed on the rotating support platform. At this time, the motor stops rotating, and the non-clamping side of the mobile phone shell can be detected. After the detection is completed, the driving platform continues to rotate, the opposite side clamping parts are separated and the mobile phone shell placed on the rotating support platform is released. The opposite side clamping parts are in a released state, thereby adjusting the clamping and release of the mobile phone shell. The motor drives in the reverse direction, and the rotating support platform rotates at this time, and the driving platform does not rotate. When the mobile phone shell is in a released state, the rotation of the rotating support platform can drive the mobile phone shell to rotate ninety degrees, thereby adjusting the clamping direction of the mobile phone shell, thereby completing the side change. At this time, the upper surface of the rotating support table can be provided with a friction layer to increase the friction of the mobile phone housing on the upper surface of the rotating support table to prevent the mobile phone housing from moving during operation. Of course, a suction cup can also be provided, which will not be described in detail here.

[0019] Preferably: the extrusion detection assembly may include a transverse detection driver, a drive rod and a detection pressure piece. The transverse detection driver is fixedly connected to the base. The output end of the transverse detection driver is fixedly connected to the drive rod. A guide groove is provided on the lower surface of the drive rod. A sliding base is slidably arranged inside the guide groove. A detection pressure piece is rotatably arranged at the bottom of the sliding base. The detection pressure piece may be a circular plate-like structure. Extrusion teeth are fixedly arranged on the outer edge of the edge of the circular plate-like structure. The extrusion teeth can be arranged according to the detection requirements. A reset spring is placed inside the guide groove. The sliding base is elastically slidably connected to the inside of the drive rod through the reset spring. The drive rod causes the sliding base to slide in a direction away from the transverse detection driver. The transverse detection driver may be a screw drive, or a cylinder, a hydraulic cylinder, etc., which will not be described in detail here. A guide rod may be fixedly arranged inside the guide groove. The guide rod slides through the sliding base and the reset spring, so that the sliding base slides smoothly and avoids the bending of the reset spring. A position sensing unit is fixedly arranged inside the guide groove. The position sensing unit is used to sense the position of the sliding base. The position sensing unit may be a pressure sensor, an extrusion switch, etc., which will not be described in detail here.

[0020] Preferably: the preset pressure is controlled by the driving amount of the lateral detection driving member, specifically, the lateral detection driving member drives the driving rod to move closer, the edge of the detection pressure member contacts the edge of the mobile phone shell, and the reset spring is compressed by pressure. At this time, the position sensing unit senses the movement of the sliding base, and the control member radially calibrates the driving amount of the lateral detection driving member. The control member calculates the feed driving amount Q according to a preset detection strength standard value P. The detection standard strength at this time is the pressure that a qualified mobile phone shell can withstand. The feed driving amount Wherein, W is the width of the convex point on the detection pressing piece, H is the thickness of the mobile phone shell, and K is the elastic coefficient of the reset spring, so that the feed drive amount Q can be calculated, the control part controls the lateral detection driving part to feed and drive, and the drive amount is Q, and the control part continues to control the station conversion driving part to drive the working platform to move, and the movement amount is L'+a', wherein L' is the length of the mobile phone shell, and a' is the detection adjustment amount, which can be more than times the convex point spacing on the detection pressing piece. The mobile phone shell pushes the detection pressing piece to rotate, and the convex point squeezes the edge of the mobile phone shell and rotates with the detection pressing piece. The control part controls the non-clamping edge of the microscopic camera unit to take microscopic photos. After the detection is completed, the control part controls the rotation degree of the driving platform. At this time, the rotating support platform does not rotate. The rotation of the rotating support platform drives the opposite side clamping parts embedded in the driving rail groove to slide symmetrically on the upper surface of the working platform, and the two opposite side clamping parts are in a released state. The motor drives in reverse, and the rotating support platform rotates at this time, and the driving platform does not rotate at this time. When the mobile phone shell is in a released state, the rotation of the rotating support platform can drive the mobile phone shell to rotate 90 degrees. The motor drives forward to rotate the driving platform, while the rotating support platform does not rotate. The rotation of the rotating support platform drives the opposite side clamps embedded in the driving rail groove to slide symmetrically on the upper surface of the working platform, and the two opposite side clamps are in a clamped state.

[0021] The technical effects and advantages of the present invention are as follows: The present invention can complete the clamping, releasing and rotating side-changing clamping of the mobile phone shell by detecting the side-changing clamping assembly, and has strong adjustment ability and simplified structure. Microscopic photography and processing can be performed through the microscopic camera unit, thereby avoiding the human error of naked eye judgment and increasing the objectivity of the judgment. By obtaining the damage value, the strength of the mobile phone shell can be quantitatively read, and the detection ability is strong and the embodiment ability is good. This method can reduce the influence weight of trace cracks and increase the influence weight of long cracks, so that the strength of the mobile phone shell can be more effectively evaluated, and the detection and evaluation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a schematic diagram of the three-dimensional structure of a mobile phone edge casing strength inspection device based on image processing.

[0023] Figure 2 The present invention provides a schematic top view of the structure of a mobile phone edge casing strength inspection device based on image processing.

[0024] Figure 3 The present invention proposes Figure 2 Schematic diagram of the local cross-sectional structure.

[0025] Figure 4 A schematic diagram of the three-dimensional structure of a side-changing clamping assembly for detecting the side casing strength inspection device for a mobile phone based on image processing proposed by the present invention.

[0026] Figure 5 The present invention provides a schematic top view of the structure of a clamping assembly in a mobile phone edge casing strength inspection device based on image processing.

[0027] Figure 6 This is a schematic diagram of the internal structure of a clamping assembly in a mobile phone edge casing strength inspection device based on image processing proposed by the present invention.

[0028] Explanation of the accompanying drawings: base 1, work station conversion slide 2, guide rail 3, extrusion detection component 4, detection side change clamping component 5, control component 6, working platform 7, work station conversion drive component 8, lateral detection drive component 9, microscope camera unit 10, position sensing unit 11, drive rod 12, detection pressure component 13, guide rod 14, guide groove 15, return spring 16, drive platform 17, opposite side clamping component 18, drive rail groove 19, motor 20, rotating support platform 21. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0030] Example 1

[0031] refer to Figure 1-Figure 3 In this embodiment, a mobile phone edge shell strength inspection device based on image processing is proposed, which is used to detect the edge strength of the mobile phone shell. The mobile phone edge shell strength inspection device based on image processing includes:

[0032] The base 1 can be a rectangular tabletop structure or a frame-welded support structure, wherein the rectangular tabletop structure is supported and fixed by the support structure, and the support structure can be a frame-welded support leg, and each support leg is connected by a connecting rod to increase the stability of the support leg. The bottom of the support leg can be fixedly connected with a pad, and the pad can be provided with a mounting hole, and the support leg can be fixed to the ground at the production line position or the detection position by passing a bolt through the mounting hole. Of course, the bottom of the support leg can be rotatably provided with a universal wheel, and the universal wheel is provided with a brake plate for braking, so as to facilitate the adjustment of the position of the base 1, and the details are not repeated here. A workstation conversion slide 2 is provided on the upper surface of the base 1, and a working platform 7 is slidably placed inside the workstation conversion slide 2. The station conversion chute 2 can be a strip-shaped through-groove structure. The station conversion chute 2 is sequentially arranged as a loading station, a detection station and a unloading station when sliding upward. The work platform 7 slides inside the station conversion chute 2, so that it can alternately stay at the loading station, the detection station and the unloading station. In this way, the loading, detection and unloading of the mobile phone shell are completed. The work platform 7 can be a square or rectangular table-shaped structure. The top surface of the work platform 7 can be higher than the top surface of the base 1. Of course, it is not a necessary restriction, and it can facilitate the detection needs. The station conversion chute 2 is provided with a folding cover, and there are two folding covers. One end of the folding cover is fixedly connected to one end of the station conversion chute 2, and the other end of the folding cover is fixedly connected to the work platform 7, so that the station conversion chute 2 can be covered.

[0033] The station conversion drive 8 can be installed on the base 1 and connected to the working platform 7 to drive the working platform 7 to move, so that the working platform 7 can be switched between the loading station, the inspection station and the unloading station. The station conversion drive 8 can be driven by a cylinder, an electric telescopic rod, or a combination of a screw and a motor, which will not be described in detail here. The interior of the station conversion chute 2 can be longitudinally fixed with at least one guide rail 3, and the number is preferably two, which can be fixedly connected to the bottom of the base 1, and the two ends of the guide rail 3 are fixedly connected to the bottom of the base 1 by screws. A slider is fixedly connected to the bottom of the working platform 7, and the slider is slidably nested on the guide rail 3. The setting of the guide rail 3 increases the stability and smoothness of the sliding of the working platform 7. Of course, the working platform 7 and the station conversion chute 2 can also be slidably nested through grooves and protrusions, which will not be described in detail here.

[0034] See also Figure 5-Figure 6, the detection side-changing clamping assembly 5 is installed on the working platform 7, and the detection side-changing clamping assembly 5 is used to position the mobile phone shell and alternately clamp the side-changing, so as to facilitate the strength detection of the non-clamped side. The detection side-changing clamping assembly 5 may include a rotating support structure and an opposite side clamping structure, the rotating support structure is used to support the mobile phone shell and intermittently rotate ninety degrees, and the opposite side clamping structure is used to clamp and release the mobile phone shell. The clamping, releasing and rotation of the mobile phone shell can be completed by the cooperation of the rotating support structure and the opposite side clamping structure. The general rotation and clamping require multiple driving structures to cooperate, which will result in complex structure, high production cost and large power consumption. The detection side-changing clamping assembly 5 may also include a drive platform 17, an opposite side clamping member 18, a rotating support platform 21 and a motor 20. The drive platform 17 is rotatably arranged inside the working platform 7. The drive platform 17 may be a circular plate-shaped structure. A drive rail groove 19 is provided on the upper surface of the drive platform 17. The drive rail groove 19 is a symmetrical closed annular groove-shaped structure, and its line diameter changes smoothly in one direction as the angle changes within the flat angle. Either increase or decrease. The distance between the drive rail groove 19 at the same linear position and the rotation center of the drive platform 17 changes as the drive platform 17 rotates. There are two opposite side clamps 18, which are slidably located inside the working platform 7. The side clamps 18 are slidably connected to the working platform 7, and the sliding direction is the radial position of the drive platform 17. The top of the side clamps 18 extends out of the upper surface of the working platform 7. The side clamps 18 can be Z-shaped or straight rod structures. The bottom of the side clamps 18 is slidably embedded in the driving rail groove 19, and is radially slidably embedded in the working platform 7 with the driving platform 17. The bottom of the side clamps 18 can be rotatably provided with rollers, which are rotatably embedded in the driving rail groove 19. The setting of the rollers can reduce the friction between the side clamps 18 and the driving platform 17, so that the sliding of the side clamps 18 is smoother and the equipment is avoided from being worn. The cross section of the driving rail groove 19 can be a convex structure, and the rollers are rotatably embedded in the interior to avoid the side clamps 18 from sliding out. The upper surface of the working platform 7 is rotatably provided with a rotating support platform 21, which is located between two opposite side clamping members 18. The rotating support platform 21 is rotated to the rotation center position of the driving platform 17 through the rotating shaft. The driving platform 17 and the rotating shaft are unidirectionally connected to the motor 20 installed inside the working platform 7. The unidirectional rotation directions of the driving platform 17 and the rotating shaft are opposite. The rotating shaft and the driving platform 17 can be connected through a one-way bearing, and the setting directions are opposite. This is a prior art and will not be described in detail here.The forward drive of the motor 20 can make the driving platform 17 rotate, and the rotating support platform 21 does not rotate at this time. The rotation of the driving platform 17 drives the opposite side clamping member 18 embedded in the driving rail groove 19 to slide symmetrically on the upper surface of the working platform 7. The two opposite side clamping members 18 are close to each other and clamp the mobile phone shell placed on the rotating support platform 21. At this time, the motor 20 stops rotating, and the non-clamping edge of the mobile phone shell can be detected. After the detection is completed, the driving platform 17 continues to rotate, and the opposite side clamping member 18 separates and releases the mobile phone shell placed on the rotating support platform 21. The opposite side clamping member 18 is in a released state, thereby adjusting the clamping and releasing of the mobile phone shell. The motor 20 drives in the reverse direction, and the rotating support platform 21 rotates at this time, and the driving platform 17 does not rotate. When the mobile phone shell is in a released state, the rotation of the rotating support platform 21 can drive the mobile phone shell to rotate ninety degrees, thereby adjusting the clamping direction of the mobile phone shell, thereby completing the side change. At this time, the upper surface of the rotating support platform 21 can be provided with a friction layer, so as to increase the friction force of the mobile phone shell placed on the upper surface of the rotating support platform 21 to prevent the mobile phone shell from moving during operation. Of course, a suction cup can also be provided, which will not be described in detail here.

[0035] Two extrusion detection components 4 are provided and fixedly arranged on the base 1 relatively to each other and are located on both sides of the transverse direction of the station conversion slide 2. Here, the sliding direction of the working platform 7 is the longitudinal direction, and the transverse direction is perpendicular to the longitudinal direction. The connection line of the two extrusion detection components 4 is perpendicular to the connection line between the two opposite side clamping members 18. The extrusion detection component 4 is used to perform strength detection on the non-clamping edge of the mobile phone housing. The extrusion detection component 4 may include a transverse detection drive member 9, a drive rod 12 and a detection pressure member 13. The transverse detection drive member 9 is fixedly connected to the base 1, and the output end of the transverse detection drive member 9 is fixedly connected to the drive rod 12. Reference Figure 4The lower surface of the driving rod 12 is provided with a guide groove 15, and a sliding base is slidably arranged inside the guide groove 15. A detection pressure piece 13 is rotatably arranged at the bottom of the sliding base. The detection pressure piece 13 can be a circular plate-like structure, and the outer edge of the edge of the circular plate-like structure is fixedly provided with extrusion teeth. The extrusion teeth can be set according to the detection requirements. The specific width can be 1-3mm. Of course, other width and short ranges are not excluded. The details are not repeated here. A reset spring 16 is placed inside the guide groove 15. The sliding base is elastically slidably connected to the inside of the driving rod 12 through the reset spring 16. The driving rod 12 makes the sliding base slide away from the lateral detection driving member 9. The lateral detection driving member 9 can be driven by a screw rod, or a cylinder, a hydraulic cylinder, etc. The details are not repeated here. A guide rod 14 can be fixedly arranged inside the guide groove 15. The guide rod 14 slides through the sliding base and the reset spring 16, so that the sliding base slides smoothly and avoids the bending of the reset spring 16. A position sensing unit 11 is fixedly disposed inside the guide groove 15 . The position sensing unit 11 is used to sense the position of the sliding base. The position sensing unit 11 may be a pressure sensor, a squeeze switch, etc., and the details are not described here.

[0036] The microscope camera unit 10 is fixedly arranged on the base 1 and is located above the detection station. It is used to photograph the edge of the mobile phone shell after detection. The microscope camera unit 10 can be a laser microscope. The microscope camera unit 10 can be set according to the shooting range. If the shooting range of the microscope camera unit 10 is large, the microscope camera unit 10 can be fixed. When the shooting range of the microscope camera unit 10 is small, the microscope camera unit 10 can be moved horizontally and vertically. This is a prior art and will not be described in detail here.

[0037] The control member 6 can be electrically connected to the extrusion detection component 4, the detection side-changing clamping component 5, the station conversion drive member 8, the position sensing unit 11 and the micro-camera unit 10. The control member 6 is used to control the detection side-changing clamping component 5 to clamp the mobile phone shell. Specifically, the spacing between the two opposite side clamping members 18 is large at this time, and the opposite side clamping members 18 are in a released state at this time. The control member 6 controls the motor 20 to rotate 90 degrees in the forward direction. At this time, the distance between the two opposite side clamping members 18 is reduced to the minimum value, and the two opposite side clamping members 18 are close to clamp the mobile phone shell. The control member 6 controls the station conversion drive member 8 to drive the working platform 7 at the loading station to move, and the working platform 7 moves the mobile phone shell to the detection station. The station conversion drive member 8 can be quantitatively driven according to the station needs, which is a prior art and will not be described in detail here. The control member 6 controls the extrusion detection component 4 to move and detect the non-clamping edge of the mobile phone shell. Specifically, the lateral detection drive member 9 drives the drive rod 12 to move closer, and the edge of the detection pressure member 13 contacts the edge of the mobile phone shell. The reset spring 16 is compressed by pressure. At this time, the position sensing unit 11 senses the movement of the sliding base. The control member 6 radially calibrates the drive amount of the lateral detection drive member 9. The control member 6 calculates the feed drive amount Q according to a preset detection strength standard value P. The detection standard strength at this time is the pressure that a qualified mobile phone shell can withstand. The feed drive amount Wherein, W is the width of the convex point on the detection pressing member 13, H is the thickness of the mobile phone shell, K is the elastic coefficient of the reset spring 16, so that the feed drive amount Q can be calculated, the control member 6 controls the lateral detection driving member 9 to feed and drive, and the drive amount is Q, the control member 6 continues to control the station conversion driving member 8 to drive the working platform 7 to move, and the movement amount is L'+a', wherein L' is the length of the mobile phone shell, and a' is the detection adjustment amount, which can be more than twice the convex point spacing on the detection pressing member 13. The mobile phone shell pushes the detection pressing member 13 to rotate, and the convex point squeezes the edge of the mobile phone shell and rotates with the detection pressing member 13. The control member 6 controls the non-clamping edge of the microscopic camera unit 10 to perform microscopic photography. After the detection is completed, the control member 6 controls the driving platform 17 to rotate 90 degrees. At this time, the rotating support platform 21 does not rotate. The rotation of the rotating support platform 21 drives the opposite side clamping member 18 embedded in the driving rail groove 19 to slide symmetrically on the upper surface of the working platform 7, and the two opposite side clamping members 18 are in a released state. The motor 20 is driven in reverse direction, and the rotating support platform 21 rotates at this time, and the driving platform 17 does not rotate at this time. When the mobile phone shell is in the released state, the rotating support platform 21 rotates to drive the mobile phone shell to rotate 90 degrees. The motor 20 is driven in the forward direction to rotate the driving platform 17, and the rotating support platform 21 does not rotate at this time. The rotating support platform 21 rotates to drive the opposite side clamping parts 18 embedded in the driving rail groove 19 to slide symmetrically on the upper surface of the working platform 7, and the two opposite side clamping parts 18 are in a clamped state. The control part 6 controls the station conversion driving part 8 to reset to the detection station, and controls the extrusion detection component 4 to detect the non-clamping edge of the mobile phone shell and control the microscopic camera unit 10 to obtain the microscopic photo of the edge. The specific process is as above, and only the data is adjusted, which is not repeated here. After the detection is completed, the station conversion driving part 8 drives the working platform 7 to enter the unloading station, and controls the detection side change clamping component 5 to release the mobile phone shell to complete the unloading. The loading and unloading can be manually unloaded, which is not repeated here. The control unit 6 obtains a microscopic photograph and processes the microscopic photograph to obtain a texture image. The microscopic photograph processing may specifically include adjusting the brightness, luminance, saturation, etc., which will not be described in detail here. The texture image is analyzed to obtain the length l of the crack line of each detection edge. i , in mm. Calculate the strength damage value S of the detected edge, the And judge whether the strength damage value S is greater than a preset standard rupture damage value S 标 If yes, it is judged as unqualified, if no, it is judged as qualified. The standard rupture damage value S 标, can be set according to actual testing experience, material, thickness, requirements, etc., and the value can be 3-20, which will not be described in detail here. This method can reduce the influence weight of trace cracks and increase the influence weight of long cracks, which can more effectively evaluate the strength of the mobile phone shell and achieve better testing and evaluation results. By obtaining the damage value, the strength of the mobile phone shell can be quantitatively read, with strong testing ability and good materialization ability.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A mobile phone edge shell strength inspection device based on image processing, characterized in that: The mobile phone edge shell strength inspection device based on image processing comprises: The base platform; a station conversion chute is provided on its upper surface, and a working platform is placed inside the station conversion chute; the station conversion chute is provided with a loading station, a testing station and a unloading station in sequence when sliding upward; The workstation conversion drive is installed on the base and connected to the work platform, and is used to drive the work platform to move and complete the workstation conversion; The detection side-changing clamping assembly is installed on the working platform and is used to position and alternately clamp the mobile phone housing; Two extrusion detection components are provided and fixedly arranged on the base relatively to each other, and are used for performing strength detection on the non-clamping edge of the mobile phone housing; A microscopic camera unit is fixedly arranged on the base and located above the inspection station, and is used to photograph the edge of the mobile phone housing after inspection; The control part is electrically connected with the station conversion drive part, the detection side-changing clamping component, the extrusion detection component and the micro-camera unit, and is used to control the detection side-changing clamping component to clamp the mobile phone shell on the working platform; the station conversion drive part is controlled to drive the working platform to move the detection station, and the control part controls the extrusion detection component to move and apply a preset pressure to the non-clamping side of the mobile phone shell for extrusion; the micro-camera unit micro-photographs to obtain microscopic photos of the edge, and the detection side-changing clamping component clamps the mobile phone shell; extrudes and micro-photographs to obtain microscopic photos of the edge; processes the microscopic photos to obtain texture display pictures, and analyzes the texture display pictures to obtain the length l of the crack line of each detection edge i , calculate and obtain the strength damage value S of the detection edge, the Determine whether the strength damage value S is greater than a preset standard rupture damage value S 标 , if yes, it is judged as unqualified, if no, it is judged as qualified; The extrusion detection assembly includes a transverse detection driving member, a driving rod and a detection pressing member, the transverse detection driving member is fixedly connected to the base, the output end of the transverse detection driving member is fixedly connected to the driving rod, the lower surface of the driving rod is provided with a guide groove, a sliding base is slidably arranged inside the guide groove, the bottom of the sliding base is rotatably arranged with a detection pressing member, a reset spring is placed inside the guide groove, and the sliding base is elastically slidably connected to the inside of the driving rod through the reset spring; The preset pressure is controlled by the driving amount of the lateral detection drive member, and the control member calculates the feed driving amount Q according to a preset detection intensity standard value P. Wherein, W is the width of the protrusion on the detection pressing member, H is the thickness of the mobile phone shell, K is the elastic coefficient of the reset spring, and the control member controls the lateral detection driving member to feed and drive, and the driving amount is Q.

2. According to the image processing-based mobile phone edge shell strength inspection device of claim 1, it is characterized in that: A guide rail is fixedly arranged longitudinally inside the station conversion slide, and a slider is fixedly connected to the bottom of the working platform, and the slider is slidably nested on the guide rail.

3. The mobile phone edge shell strength inspection device based on image processing according to claim 1 is characterized in that: The detection side-changing clamping assembly also includes a driving platform, an opposite side clamping piece, a rotating support platform and a motor. The driving platform is rotatably arranged inside the working platform. A driving rail groove is provided on the upper surface of the driving platform. The driving rail groove is a symmetrical closed annular groove structure, and its line diameter changes smoothly and unidirectionally within the flat angle as the angle changes. Two opposite side clamping pieces are arranged opposite to each other and are slidably located inside the working platform. The opposite side clamping piece is slidably connected to the working platform, and the sliding direction is the radial position of the driving platform. The top of the opposite side clamping piece extends out of the upper surface of the working platform, and the bottom of the opposite side clamping piece is slidably embedded in the inside of the driving rail groove, and is radially slidably embedded in the inside of the working platform by the driving platform; a rotating support platform is rotatably arranged on the upper surface of the working platform, and the rotating support platform is located between the two opposite side clamping pieces. The rotating support platform is rotated to the rotation center position of the driving platform through the rotating shaft; the driving platform and the rotating shaft are unidirectionally rotatably connected to the motor installed inside the working platform, and the unidirectional rotation directions of the driving platform and the rotating shaft are opposite.

4. The mobile phone edge shell strength inspection device based on image processing according to claim 3 is characterized in that: The opposite side clamping piece is a Z-shaped structure.

5. The mobile phone edge shell strength inspection device based on image processing according to claim 1 is characterized in that: A roller is rotatably arranged at the bottom of the opposite side clamping piece, and the roller is rotatably embedded in the interior of the driving rail groove.

6. The mobile phone edge shell strength inspection device based on image processing according to claim 1 is characterized in that: The detection pressing piece is a circular plate-shaped structure, and the outer edge of the circular plate-shaped structure is fixedly provided with extrusion teeth.

7. The mobile phone edge shell strength inspection device based on image processing according to claim 1 is characterized in that: A position sensing unit is fixedly arranged inside the guide groove, and the position sensing unit is used for sensing the position of the sliding base.

8. The mobile phone edge shell strength inspection device based on image processing according to claim 1 is characterized in that: During the detection process, the control component continues to control the station conversion drive component to drive the working platform to move, and the movement amount is L'+a', wherein L' is the length of the mobile phone housing, and a' is the detection adjustment amount.

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