Flatness testing equipment and electronic equipment

Abstract

The present application provides a flatness detection device and an electronic device, wherein the flatness detection device comprises: a first detection member, a first conductive member, a positioning member, a first power source and a first alarm; the first detection member comprises a first detection surface, the first conductive member and the positioning member are both connected to the first detection member, the first conductive member and the first detection member are insulated from each other, and the positioning member and the first detection member are insulated from each other; the first conductive member comprises a first detection end, and the positioning member is provided with a positioning end; the first detection end and the positioning end are both raised relative to the first detection surface; the positioning end supports the component to be detected, the first detection end contacts the first detection surface, and there is a gap between the first detection surface and the first detection surface; the first detection member, the first alarm, the first power source and the first conductive member are electrically connected in sequence; when the component to be detected is deformed so that the first detection surface contacts the first detection surface, the first alarm sounds an alarm. The deformation of all areas of the component to be detected can be detected, the detection accuracy is high, and it is not easy to miss detection.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a flatness detection device and an electronic device. Background Art

[0002] There are many devices with large flat surfaces in electronic devices such as mobile phones, such as middle frames, back covers, and heat sinks. Generally, before assembling electronic devices, the flatness of parts needs to be tested. However, the current detection methods for detecting the flatness of large flat components have low accuracy and are prone to missed detection. Utility Model Content

[0003] The present application provides a flatness detection device and an electronic device, which can detect the degree of deformation of all areas of a component to be detected, with high detection accuracy and less risk of missed detection.

[0004] The present application provides a flatness detection device for detecting the flatness of a component to be detected, wherein the component to be detected includes a first surface to be detected. The component to be detected may be any component whose flatness needs to be detected. For example, the component to be detected may be a separate heat sink, in which case the first surface to be detected is the lower surface of the heat sink, and the second surface to be detected is the upper surface of the heat sink. The component to be detected may also be a separate middle frame, in which case the first surface to be detected is the bottom surface of the first accommodating cavity and the second accommodating cavity, and the second surface to be detected is the bottom surface of the accommodating groove of the middle plate. Alternatively, the first surface to be detected is the first supporting surface of the middle plate, and the second surface to be detected is the second supporting surface of the middle plate. The component to be detected may also be an assembly of a middle frame and a heat sink, in which case the first surface to be detected includes the lower surface of the heat sink. The second surface to be detected includes the second supporting surface.

[0005] The flatness detection device comprises: a first detection member, a first conductive member, a positioning member, a first power supply and a first alarm. The first detection member and the first conductive member are both made of conductive materials. The first detection member can be plate-shaped, and the first conductive member and the positioning member can be columnar.

[0006] The first detection member includes a first detection surface, and the first conductive member and the positioning member are both connected to the first detection member. The first conductive member and the first detection member are insulated from each other, and the positioning member and the first detection member are insulated from each other. The first conductive member includes a first detection end, and the positioning member is provided with a positioning end. The orientations of the first detection end and the positioning end are the same as those of the first detection surface. Along the thickness direction of the first detection member, the first detection end and the positioning end are both protruding relative to the first detection surface.

[0007] The positioning end is used to support the component to be detected. Along the thickness direction of the first detection member, the first detection end contacts the first surface to be detected, and there is a gap between the first surface to be detected and the first detection surface. The first detection member, the first alarm, the first power supply of the control module, the first conductive member and the heat sink form a first conductive loop. When the component to be detected is not deformed, there is a gap between the first surface to be detected and the first detection surface, and the first conductive loop is disconnected. When the component to be detected is deformed so that the first surface to be detected contacts the first detection surface, and the first conductive loop is turned on, the first alarm sounds an alarm.

[0008] Take the assembly of the middle frame and the heat sink as an example: when the flatness of the heat sink needs to be detected, the heat sink is bonded to the receiving groove of the middle frame, and then the middle frame is placed on the first detection member. The first supporting surface of the middle frame faces the first upper surface of the first detection member, and the heat sink faces the first detection surface. The bottom surface of the receiving groove can contact the positioning end of the positioning member so that the positioning member supports the middle frame and the heat sink. Because the positioning member and the first detection member are insulated from each other, the positioning member will not cause the middle frame and the first detection member to be electrically connected. The first detection end of the first conductive member can contact the bottom surface of the main body of the heat sink.

[0009] At this time, if the heat sink is not deformed, there is a first distance between the bottom surface of the heat sink and the first detection surface. That is, when the heat sink is not deformed, the bottom surface of the heat sink and the first detection surface are not in contact, the first conductive loop is disconnected, and the first alarm will not sound an alarm. However, if the heat sink is deformed, for example, the skirt of the heat sink is deformed, causing the bottom surface of the skirt to contact the first detection surface. Alternatively, the main body of the heat sink is deformed, causing the bottom surface of the main body to contact the first detection surface. The first conductive loop is then turned on, and the first alarm will sound an alarm to indicate that the heat sink is unqualified.

[0010] The flatness detection device provided in the present application can detect deformation of almost all areas of the component to be detected, with high detection accuracy and less risk of missed detection.

[0011] In the present application, the first detection member is provided with a first mounting hole, and the first mounting hole passes through the first detection surface. A first abutment surface is provided in the first mounting hole. The first conductive member also includes a first end and a first limiting surface, and along the thickness direction of the first detection member, the first end and the first detection end are opposite to each other. The first limiting surface is located between the first end and the first detection end, and the first limiting surface and the first detection end have the same orientation. The flatness detection device also includes a first elastic member, and the first elastic member and the first conductive member are both arranged in the first mounting hole, and the first elastic member is in a compressed state. One end of the first elastic member abuts against the first end so that the first abutment surface abuts against the first limiting surface. The first detection end extends out of the first mounting hole.

[0012] The first limiting surface cooperates with the first abutting surface to prevent the first conductive member from being separated from the first mounting hole. The first elastic member can keep the first conductive member in contact with the heat sink. In addition, when the portion of the first conductive member extending out of the first mounting hole is too long, when the heat sink contacts the first detection end of the first conductive member, the heat sink can push the first conductive member to move downward, and at this time, the compression amount of the first elastic member increases, which can prevent the first conductive member from crushing the heat sink.

[0013] In the present application, a first insulating sleeve is provided between the hole wall of the first mounting hole and the first conductive member. The first insulating sleeve insulates the first conductive member and the first detection member from each other to prevent erroneous detection.

[0014] In the present application, the first insulating sleeve is an insulating layer disposed on the wall surface of the first mounting hole. Alternatively, the first insulating sleeve is an insulating layer disposed on the outer peripheral surface of the first conductive member. In this way, the first conductive member and the first detection member can be insulated from each other and the number of components can be reduced.

[0015] In the present application, the first insulating sleeve is provided with a first through hole, and the first through hole includes a first hole and a second hole. Along the thickness direction of the first detection member, the first hole and the second hole are connected and communicated. The inner diameter of the first hole is larger than the inner diameter of the second hole, and a first abutment surface is formed between the first hole and the second hole.

[0016] The first conductive member includes a first conductive section and a second conductive section. The first conductive section and the second conductive section are fixedly connected along the thickness direction of the first detection member. The outer diameter of the first conductive section is greater than the outer diameter of the second conductive section. A first limiting surface is formed between the first conductive section and the second conductive section. The first end portion is an end of the first conductive section away from the second conductive section, and the first detection end is an end of the second conductive section away from the first conductive section.

[0017] The first insulating sleeve is fixed in the first mounting hole, the first conducting section is located in the first hole, and the second conducting section is located in the second hole, thereby making the first conducting member and the first conductive member insulated from each other and convenient for assembly.

[0018] In the present application, the first detection member also includes a first setting surface, and the first setting surface and the first detection surface have the same orientation. The positioning member is fixed to the first setting surface. Alternatively, the first detection member is also provided with a positioning hole, and the positioning hole passes through the first setting surface. The positioning member is arranged in the positioning hole, and a part of the positioning member extends out of the positioning hole. The positioning end is located at an end of the positioning member away from the first setting surface. That is, the positioning member can be directly protruded from the first setting surface, or it can be arranged in the positioning hole. Those skilled in the art can choose according to actual conditions, and the design flexibility is high.

[0019] In the present application, the positioning member is made of insulating material, thereby saving the number of parts. Alternatively, the positioning member is made of metal material, and the positioning member and the first detection member are insulated by the positioning insulating member, thereby making the structural strength of the positioning member stronger and preventing the positioning member and the first detection member from being electrically connected.

[0020] In the present application, the flatness detection device further includes a guide member. The guide member is fixed to the first setting surface. Alternatively, the first detection member is further provided with a guide hole, which passes through the first setting surface. The guide member is arranged in the guide hole, and a part of the guide member extends out of the guide hole. The guide member and the first detection member are insulated from each other, and the guide member is used to extend into the hole of the component to be detected. The guide member can position the component to be detected to prevent the component to be detected from shifting, thereby increasing the detection accuracy.

[0021] In the present application, the guide member is made of insulating material, thereby saving the number of parts. Alternatively, the guide member is made of metal material, and the guide member and the first detection member are insulated by the guide insulating member, thereby making the structural strength of the guide member stronger and preventing the guide member and the first detection member from being electrically connected.

[0022] In the present application, the component to be detected further includes a second surface to be detected, and along the thickness direction of the component to be detected, the second surface to be detected and the first surface to be detected are opposite to each other.

[0023] The flatness detection device also includes: a second detection member, a second conductive member, a second power supply and a second alarm.

[0024] The second detection member includes a second detection surface, and the second conductive member is connected to the second detection member, and the second conductive member and the second detection member are insulated from each other. The second conductive member includes a second detection end. The second detection end is oriented in the same direction as the second detection surface, and along the thickness direction of the second detection member, the second detection end is protruding relative to the second detection surface, and the second detection end contacts the second detection surface, and there is a gap between the second detection surface and the second detection surface. The second detection member, the second alarm, the second power supply, the second conductive member and the component to be detected form a second conductive loop; when the component to be detected is not deformed, there is a gap between the second detection surface and the second detection surface, and the second conductive loop is disconnected; when the component to be detected is deformed so that the second detection surface and the second detection surface contact, the second conductive loop is turned on, and the second alarm sounds an alarm. When the second conductive loop is turned on so that the second alarm sounds an alarm, it proves that the component to be detected is unqualified. In this way, the flatness of the first detection surface and the second detection surface of the component to be detected can be detected simultaneously, which can improve the detection efficiency on the one hand, and reduce the missed detection rate on the other hand.

[0025] Taking the assembly of the middle frame and the heat sink as an example, if the heat sink is deformed, the middle frame is also deformed, which may cause the first conductive loop to fail to conduct, leading to missed detection. The reason is that the heat sink is stacked and fixed to the middle frame, and the heat sink is in the form of a thin sheet. Therefore, when the middle frame is deformed, it is easy to cause the heat sink and the middle frame to deform at the same time. In particular, when the middle frame and the position corresponding to the first detection end of the first conductive part are bent and deformed upward, the main body of the heat sink will also bend and deform upward. At this time, the first detection end of the first conductive part and the bottom surface of the main body of the heat sink are not in contact, which causes the first conductive loop to fail to conduct.

[0026] In this application, if the area corresponding to the middle frame and the second detection surface is deformed upward, so that the second support surface of the middle frame contacts the second detection surface, the second conductive circuit is turned on, and the second alarm will sound an alarm to remind the staff that the middle frame is unqualified, and it can also remind the staff that the heat sink may be unqualified. Of course, if the area corresponding to the middle frame and the second detection surface is not deformed upward, the second conductive circuit is in a disconnected state, and the second alarm will not sound an alarm, which proves that the middle frame is qualified. In this way, the missed detection rate can be reduced.

[0027] In the present application, the second detection member is provided with a second mounting hole, the second mounting hole penetrates the second detection surface, and a second abutting surface is provided in the second mounting hole.

[0028] The second conductive member also includes a second end and a second limiting surface, and along the thickness direction of the second detection member, the second end and the second detection end are opposite to each other. The second limiting surface is located between the second end and the second detection end, and the second limiting surface and the second detection end have the same orientation. The flatness detection device also includes a second elastic member, and the second elastic member and the second conductive member are both arranged in the second mounting hole, and the second elastic member is in a compressed state. One end of the second elastic member abuts the second end so that the second abutting surface abuts the second limiting surface. The second detection end extends out of the second mounting hole. The second elastic member can keep the second conductive member in contact with the middle frame. In addition, if the portion of the second conductive member extending out of the second mounting hole is too long, when the middle frame contacts the second detection end of the second conductive member, the middle frame can push the second conductive member to move upward, and at this time, the compression amount of the second elastic member increases, which can prevent the second conductive member from crushing the middle frame.

[0029] In the present application, along the height direction of the flatness detection device, the orthographic projection of the positioning member on the first detection member and the orthographic projection of the second conductive member on the first detection member at least partially overlap. Specifically, the positioning member and the first detection member can be coaxial. When the component to be detected is an assembly of a middle frame and a heat sink, the coaxial positioning member and the second detection member can have a certain comparative effect on the middle frame.

[0030] Normally, after the middle frame is processed, it will be twisted and deformed, and the deformation of each middle frame is inconsistent. However, after the display screen is installed, it will have a certain correction effect on the display screen. For example: one corner of the middle frame is tilted upwards, and the other corner is sunken downwards. When the display screen is bonded to the middle frame with adhesive, the display screen and the adhesive will pull the raised corners of the middle frame downwards and the sunken corners of the middle frame upwards. In other words, some middle frames can be corrected to qualified parts through the assembly process. If the inspection is performed when the middle frame is not assembled, excessive interception may occur, that is, the middle frame that can be corrected to a qualified part during assembly may also be judged as an unqualified part.

[0031] In the present application, the positioning member and the second conductive member can have a certain shaping effect on the middle frame. For example, one corner of the middle frame is tilted upward, and the other corner is sunken downward. The positioning member and the second conductive member can flatten the tilted corner of the middle frame downward and flatten the sunken corner of the middle frame upward. That is, by setting the positioning member and the second conductive member, the assembly state of the middle frame can be simulated. In addition, excessive interception can be prevented and detection accuracy can be improved.

[0032] In the present application, the flatness detection device also includes a base, a support frame and a driving member. The support frame is arranged on the base, and the driving body of the driving member is connected to the support frame. The first detection member is arranged on the base, and the second detection member is arranged on the transmission part of the driving member. Along the thickness direction of the first detection member, the first detection surface and the second detection surface are opposite. The driving member can drive the first detection member to move toward the second detection member so that the second detection end contacts the second surface to be detected, and there is a gap between the second surface to be detected and the second detection surface. In this way, automated detection can be achieved.

[0033] In the present application, the flatness detection device further includes a first insulating member and a second insulating member. The first insulating member is disposed between the base and the first detection member, and the second insulating member is disposed between the transmission part and the second detection member. The first insulating member insulates the first detection member from the base, and the second insulating member insulates the second detection member from the driving member, so as to prevent the base or the driving member from affecting the detection result.

[0034] In the present application, the flatness detection device also includes a first bearing member, a second bearing member and a limiting member, wherein the first bearing member is arranged between the first insulating member and the base, and the second bearing member is arranged between the second insulating member and the transmission part. The limiting member is connected to the first bearing member or the second bearing member. When the driving member drives the first detection member to move toward the second detection member, the opposite ends of the limiting member respectively abut against the first bearing member and the second bearing member, so that the second detection end contacts the second surface to be detected, and there is a gap between the second surface to be detected and the second detection surface.

[0035] The first bearing member is used to support the first insulating member and the first detecting member, and the second bearing member is used to support the second insulating member and the second detecting member. The limiting member is used to limit the distance between the first detecting member and the second detecting member so that there is a gap between the second surface to be detected and the second detecting surface.

[0036] In the present application, the support frame includes a guide slide, a fixed member and a sliding member. One end of the guide slide is fixed to the base, and the fixed member is fixed to the end of the guide slide away from the base. The driving body is fixed to the fixed member. The sliding member is fixedly connected to the transmission part, and the sliding member is slidably connected to the guide slide. The second bearing member is connected to the sliding member.

[0037] The present application also provides an electronic device, the electronic device includes a middle frame and a heat sink, the heat sink is fixed to the middle frame, and the middle frame and / or the heat sink are inspected using the flatness inspection device provided in the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0039] Figure 1 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0040] Figure 2 yes Figure 1 Schematic diagram of the split structure of the electronic device shown in.

[0041] Figure 3 yes Figure 1 A schematic structural diagram of a heat sink of an electronic device is shown in FIG.

[0042] Figure 4 yes Figure 3 AA section structure schematic diagram.

[0043] Figure 5 yes Figure 1 BB section structure schematic diagram.

[0044] Figure 6 It is a structural schematic diagram of the flatness detection device provided in an embodiment of the present application.

[0045] Figure 7 yes Figure 6 Schematic diagram of the split structure of the flatness detection equipment shown in.

[0046] Figure 8 yes Figure 6 A schematic structural diagram of the first detection module of the flatness detection device is shown in FIG.

[0047] Fig. 9 yes Figure 8A schematic diagram of the split structure of the first detection module is shown in FIG.

[0048] Fig.10 yes Fig. 9 A is an enlarged structural diagram of FIG.

[0049] Fig.11 yes Figure 8 Schematic diagram of the CC cross-sectional structure.

[0050] Fig.12 yes Figure 6 A schematic structural diagram of the second detection module of the flatness detection device is shown in FIG.

[0051] Fig.13 yes Fig.12 A schematic diagram of the split structure of the second detection module is shown in FIG.

[0052] Fig.14 yes Fig.13 Schematic diagram of the enlarged structure at B.

[0053] Fig.15 yes Fig.12 DD section structure schematic diagram.

[0054] Fig.16 yes Figure 6 A partial structural cross-sectional view of the flatness detection device shown in FIG.

[0055] Fig.17 yes Figure 6 The structure schematic diagram of the flatness detection device detecting the flatness of the component to be detected is shown in FIG.

[0056] Fig.18 yes Fig.17 Schematic diagram of the local structure.

[0057] Fig.19 yes Fig.17 The flatness detection device shown in the figure is a local structural cross-sectional view of the flatness of the component to be detected.

[0058] Fig. 20 yes Fig.19 Enlarged structural diagram at C.

[0059] Fig.21 It is a schematic diagram of the positional relationship between the positioning parts of the flatness detection equipment and the parts to be detected.

[0060] Fig. 22 It is a schematic diagram of the positional relationship between the test assembly of the flatness detection equipment and the part to be detected.

[0061] Fig.23 It is a structural schematic diagram when the flatness detection equipment detects that the component to be detected is unqualified. DETAILED DESCRIPTION

[0062] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0063] The embodiment of the present application provides a flatness detection device, which can be used to detect the flatness of related components of electronic devices. The structure of the electronic device is first introduced below. The electronic device includes but is not limited to a cell phone, a notebook computer, a tablet personal computer, a personal digital assistant, a wearable device, or a mobile device.

[0064] refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of an electronic device 200 provided in an embodiment of the present application, Figure 2 yes Figure 1 The split structure diagram of the electronic device 200 is shown in FIG. In the embodiment of the present application, the electronic device 200 is described as a mobile phone.

[0065] The mobile phone includes a main body 201 and a display screen 202. The display screen 202 has a touch function and is used to operate the mobile phone and display information such as images and videos. The display screen 202 includes a display surface and a mounting surface. The display screen 202 is mounted on the main body 201, and the mounting surface of the display screen 202 faces the main body 201, and the display surface of the display screen 202 faces away from the main body 201.

[0066] In some embodiments of the present application, the main body 201 includes a housing 203, a circuit board 204, a battery 205 and a heat sink 207. A processor (not shown) and other devices are integrated on the circuit board 204. The processor is used to read and execute instructions so that the mobile phone can perform functions such as communication, browsing text and video.

[0067] The housing 203 includes a middle frame 208 and a back cover 209. The middle frame 208 includes a middle plate 210 and a frame 211. The frame 211 is in the shape of a rectangular frame, and the middle plate 210 is in the shape of a rectangular plate. The frame 211 surrounds the middle plate 210 and is connected to the outer periphery of the middle plate 210. The middle plate 210 includes a first support surface 212 and a second support surface 213. The first support surface 212 and the second support surface 213 are arranged opposite to each other along the thickness direction of the middle plate 210. The first support surface 212 is used to support the display screen 202. The second support surface 213 and the frame 211 enclose a first accommodating cavity 215 and a second accommodating cavity 216. The first accommodating cavity 215 is used to accommodate the circuit board 204, and the second accommodating cavity 216 is used to accommodate the battery 205. The back cover 209 is fixed to one side of the frame 211, and the back cover 209 closes the first accommodating cavity 215 and the second accommodating cavity 216.

[0068] In some embodiments, reference Figure 3 and Figure 4 , Figure 3 yes Figure 1 A schematic diagram of the structure of the heat sink 207 of the electronic device 200 is shown in FIG. Figure 4 yes Figure 3 AA section structural diagram. The main body 201 also includes a heat sink 207, and the heat sink 207 is in the form of a thin sheet. The heat sink 207 includes a main body 217 and a skirt 218, the skirt 218 surrounds the main body 217, the skirt 218 is fixedly connected to the outer periphery of the main body 217, and the thickness of the skirt 218 is less than the thickness of the main body 217. Generally, the heat sink 207 can be made of stainless steel, and the heat sink 207 is processed by laser welding technology. Due to the requirements of the laser welding process, the heat sink 207 must be reserved with a skirt 218.

[0069] refer to Figure 5 , Figure 5 yes Figure 1BB cross-sectional structural diagram. The circuit board 204 is installed in the first accommodating cavity 215 (not shown). The first supporting surface 212 is concavely provided with an accommodating groove 214, and the heat sink 207 is installed in the accommodating groove 214. The main body 217 of the heat sink 207 is bonded to the bottom of the accommodating groove 214 by adhesive 219, and there is a gap between the skirt 218 of the heat sink 207 and the bottom of the accommodating groove 214. Along the thickness direction of the electronic device 200, the projection of the heat sink 207 on the second supporting surface 213 of the middle plate 210 completely covers the projection of the processor on the second supporting surface 213. The processor generates heat when working, and the heat is conducted to the heat sink 207 through the middle plate 210, and the heat spreader disperses the heat to prevent the processor from overheating. The display screen 202 is stacked on the middle plate 210, and the mounting surface of the display screen 202 and the first supporting surface 212 of the middle plate 210 are bonded by adhesive 219. The battery 205 is installed in the second receiving cavity 216 to provide power for the processor, the display screen 202 and other devices.

[0070] Normally, there is a gap between the skirt 218 and the main body 217 of the heat sink 207 and the display screen 202 to prevent the heat sink 207 from damaging the display screen 202. However, since the skirt 218 of the heat sink 207 is relatively thin, the skirt 218 may be deformed during the processing, packaging, transportation of the heat sink 207 and the assembly of the middle frame 208. If the skirt 218 is deformed toward the display screen 202 and the deformation is greater than the gap between the display screen 202 and the heat sink 207, the deformed part of the skirt 218 will squeeze the display screen 202, causing abnormal phenomena such as bright spots and white spots on the display screen 202. Therefore, it is particularly important to test the flatness of the heat sink 207.

[0071] In some related technologies, some points are selected on the heat sink 207, and then the flatness of the folded points is detected by laser. If the flatness of all points is qualified, it is proved that the flatness of the heat sink 207 is qualified. However, this measurement method can only prove that the flatness of the points of the heat sink 207 is qualified, and if the area not covered by the points is deformed, it cannot be detected. The detection accuracy is low.

[0072] In other related technologies, the use of line laser equipment for detection will also have the following defects. First, because the line laser equipment needs to be aligned with the true value sample before detection, the true value measurement uses a three-dimensional sensor, and the probe is pressed down with a pressure of about 1N during measurement, and there is a negative deviation of 0.01 to 0.02mm in the true value. Second, the industry's line laser equipment and true value alignment startup standard is that the difference is less than 0.02mm. When the line laser alignment measurement value is less than the true value of 0.02mm, if the line laser measurement is just at the upper limit, the actual material's true value is the upper limit + 0.02mm, which exceeds the specification, and the out-of-tolerance material inspection is missed. Third, the measured flatness of the middle frame 208 is the value in the natural state. After the middle frame 208, the display screen 202 and the back cover 209 are assembled, the middle frame 208 has a certain correction shape, and there is a scene of excessive interception. Fourth, due to the differences in the processes of different manufacturers, the color of the stainless steel surface is inconsistent, which affects the exposure recognition after the line laser scanning and affects the line laser measurement.

[0073] refer to Figure 6 and Figure 7 , Figure 6 is a schematic diagram of the structure of a flatness detection device 100 provided in an embodiment of the present application, Figure 7 yes Figure 6 The schematic diagram of the split structure of the flatness detection device 100 is shown in FIG. The flatness detection device 100 provided in the embodiment of the present application can solve the above problems. The flatness detection device 100 provided in the embodiment of the present application is introduced below.

[0074] For ease of description, the width direction of the flatness detection device 100 is defined as the X-axis direction, the length direction of the flatness detection device 100 is defined as the Y-axis direction, and the thickness direction of the flatness detection device 100 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other.

[0075] It should be noted that the directional terms such as "upper", "lower", "left", "right", "front" and "rear" used in the embodiment of the present application to describe the flatness detection device 100 are mainly based on the location of the flatness detection device 100 in the attached Figure 1 and Figure 2 The display orientation is explained in the figure, with the positive direction of the Z axis being "up" and "top", the negative direction of the Z axis being "down" and "bottom", the positive direction of the X axis being "right", the negative direction of the X axis being "left", the positive direction of the Y axis being "back", and the negative direction of the Y axis being "front". It does not constitute a limitation on the orientation of the flatness detection device 100 in actual application scenarios.

[0076] In some embodiments, the flatness detection device 100 includes a driving member 10 , a base 20 , a support frame 30 , a first detection module 40 , and a second detection module 50 .

[0077] The driving member 10 includes a driving body 11 and a transmission part 12. The transmission part 12 is connected to the driving body 11, and the driving body 11 can be moved by the transmission part 12. The driving member 10 can be a cylinder or a motor, etc. When the driving member 10 is a cylinder, the driving body 11 is a cylinder body, and the transmission part 12 is a connecting rod. When the driving member 10 is a motor, the driving body 11 is a body, and the transmission part 12 is a transmission shaft.

[0078] The base 20 is provided with a accommodating cavity (not shown), and the base 20 includes an outer surface and an inner surface, the inner surface is the cavity surface of the accommodating cavity, and the outer surface is opposite to the inner surface. In the embodiment of the present application, the base 20 is in the shape of a rectangular box, and the base 20 includes a bottom plate 21, a top plate 22 and four side plates 23, the bottom plate 21 and the top plate 22 are arranged at intervals along the Z-axis direction, the four side plates 23 are connected end to end in sequence, and the four side plates 23 are all connected between the top plate 22 and the bottom plate 21. The top plate 22, the bottom plate 21 and the four side plates 23 enclose the accommodating cavity. In other embodiments, the base 20 can also be other shapes, such as cylindrical or triangular prism, etc., which are not limited by the present application.

[0079] In some embodiments, reference Figure 6 and Figure 7 , a control module is arranged in the accommodating cavity. The outer surface of the base 20 is provided with a first button 24, a second button 25, a first alarm 26 and a second alarm 27, and the first alarm 26 and the second alarm 27 can be a buzzer or a lamp bead, etc. The first button 24 and the second button 25 are arranged on the outer surface of the top plate 22. The first alarm 26 and the second alarm 27 are arranged on the outer surface of the side plate 23. In some other embodiments, the first button 24 can be arranged on the outer surface of the side plate 23, and the second button 25 can be arranged on the outer surface of the side plate 23. The first alarm 26 and the second alarm 27 can be arranged on the outer surface of the top plate 22. This application is not limited. The first button 24, the second button 25, the first alarm 26 and the second alarm 27 are all electrically connected to the control module. The first button 24 and the second button 25 are both used to control the driving member 10. The first alarm 26 is also electrically connected to the first detection module 40, and when the first detection module 40 detects an abnormal situation, the first alarm 26 can alarm. The second alarm 27 is also electrically connected to the second detection module 50. When the second detection module 50 detects an abnormal situation, the second alarm 27 can sound an alarm.

[0080] In some embodiments, reference Figure 6 and Figure 7The support frame 30 includes a guide slide 31, a fixed member 32, a sliding member 33, a first bearing member 34, a first insulating member 35, a second bearing member 36, a second insulating member 37 and a stopper 38. The fixed member 32, the sliding member 33, the first bearing member 34, the first insulating member 35, the second bearing member 36, the second insulating member 37 and the stopper 38 can all be rectangular plates. In other embodiments, the fixed member 32, the sliding member 33, the first bearing member 34, the first insulating member 35, the second bearing member 36, the second insulating member 37 and the stopper 38 can also be other shapes, such as a triangular plate, a pentagonal plate or an irregular plate, etc.

[0081] The guide member 31, the fixing member 32, the sliding member 33, the first bearing member 34, the second bearing member 36 and the stopper 38 can all be made of metals such as iron, steel, brass or alloys to improve the structural strength and wear resistance of the support frame 30. The first insulating member 35 and the second insulating member 37 can be made of insulating materials such as plastic, bakelite, glass or ceramics to play an insulating role.

[0082] refer to Figure 6 and Figure 7 The guide slide 31 can be cylindrical to facilitate processing. The guide slide 31 can also be an elliptical column, a triangular prism or a quadrangular prism, etc. The guide slide 31 can also be other irregular shapes, etc. One end of the guide slide 31 is fixed to the base 20. Specifically, one end of the guide slide 31 contacts the outer surface of the top plate 22 of the base 20. The guide slide 31 and the bottom plate 21 can be fixed by welding or fasteners. There can be two guide slides 31, and the two guide slides 31 are fixed to the outer surface of the top plate 22 at intervals along the Y-axis direction. The two guide slides 31 can also be arranged along the X-axis direction, or the two guide slides 31 can be arranged obliquely relative to the Y-axis direction. The number of guide slides 31 can be one, three or four, etc. This application is not limited.

[0083] refer to Figure 6 and Figure 7 , the fixing member 32 is fixed to one end of the two guide slides 31 away from the top plate 22. The guide slide 31 and the bottom plate 21 can be fixed by welding or fasteners. The bottom surface of the fixing member 32 faces the outer surface of the top plate 22, and the top surface of the fixing member 32 faces away from the outer surface of the top plate 22. The driving body 11 of the driving member 10 is arranged on the top surface of the fixing member 32, and the transmission part 12 of the driving member 10 passes through the fixing member 32 and extends between the fixing member 32 and the top plate 22. The driving body 11 of the driving member 10 can be connected by welding or fasteners.

[0084] refer to Figure 6 and Figure 7, the sliding member 33 is located between the top plate 22 and the fixing member 32 of the base 20. The top surface of the sliding member 33 faces the bottom surface of the fixing member 32, and the bottom surface of the sliding member 33 faces the outer surface of the top plate 22. The sliding member 33 is slidably connected to the guide slide 31 and fixedly connected to the transmission part 12. Specifically, the sliding member 33 is provided with two sliding holes 331, and the sliding holes 331 penetrate the sliding member 33 along the thickness direction of the sliding member 33, that is, the sliding holes 331 penetrate the top surface and the bottom surface of the sliding member 33. The two guide slides 31 pass through the two sliding holes 331 respectively, and the guide slide 31 and the sliding holes 331 are clearance-fitted so that the sliding member 33 and the guide slide 31 are slidably connected. The top surface of the sliding member 33 is fixedly connected to the end of the transmission part 12. The driving member 10 can drive the sliding member 33 to slide along the length direction of the guide slide 31 through the transmission part 12.

[0085] refer to Figure 6 and Figure 7 , the first bearing member 34 is fixed to the base 20. The first bearing member 34 and the base 20 can be fixed by welding or fasteners. The first bearing member 34 is located between the two guide slides 31. The bottom surface of the first bearing member 34 contacts the outer surface of the top plate 22. The top surface of the first bearing member 34 faces the bottom surface of the sliding member 33. Limiting holes 341 are recessed on both sides of the top surface of the first bearing member 34. The limiting holes 341 may pass through the bottom surface of the first bearing member 34, or may not pass through the bottom surface of the first bearing member 34. The number of limiting holes 341 is a positive integer greater than or equal to 1, for example, the number of limiting holes 341 may be one, two, three, four or five, and so on.

[0086] refer to Figure 6 and Figure 7 The first insulating member 35 is fixed to the first bearing member 34. The first insulating member 35 and the first bearing member 34 can be fixed by welding or fasteners. The bottom surface of the first insulating member 35 contacts the top surface of the first bearing member 34, and the top surface of the first insulating member 35 faces the bottom surface of the sliding member 33. The first bearing member 34 is used to support the first detection module 40, and the first insulating member 35 is used to insulate the first bearing member 34, the base 20 and the first detection module 40 from each other.

[0087] refer to Figure 6 and Figure 7 The second bearing member 36 is fixed to the sliding member 33, and the second bearing member 36 and the sliding member 33 can be fixed by welding or fasteners. The top surface of the second bearing member 36 contacts the bottom surface of the sliding member 33, and the bottom surface of the second bearing member 36 faces the top surface of the first bearing member 34.

[0088] refer to Figure 6 and Figure 7, the second insulating member 37 is fixed to the second bearing member 36, and the second insulating member 37 and the second bearing member 36 can be fixed by welding or fasteners. The top surface of the second insulating member 37 contacts the bottom surface of the second bearing member 36, and the bottom surface of the second insulating member 37 faces the top surface of the first insulating member 35. The sliding member 33 is used to carry the second bearing member 36, the second insulating member 37 and the second detection module 50, the second bearing member 36 is used to carry the second detection module 50, and the second insulating member 37 is used to insulate the second bearing member 36, the driving member 10 and the support frame 30 from the second detection module 50.

[0089] refer to Figure 6 and Figure 7 , the limit member 38 is fixed to the second supporting member 36, and there are two limit members 38, and the two limit members 38 are located on both sides of the second insulating member 37 along the Y-axis direction. The limit member 38 and the second supporting member 36 can be fixed by welding or fasteners. The top surface of the limit member 38 contacts the top surface of the second supporting member 36, and the bottom surface of the limit member 38 faces the top surface of the first supporting member 34. The limit member 38 is connected to the limit column 381, and the limit column 381 is fixed to the bottom surface of the limit member 38. The number of limit columns 381 is a positive integer greater than or equal to 1, for example, the number of limit columns 381 can be one, two, three, four or five, etc. In other embodiments, the number of limit members 38 can also be one, three or three, etc., and the present application is not limited thereto.

[0090] In some other embodiments, a limiting hole 341 is disposed on the bottom end surface of the limiting member 38 , and a limiting column 381 is disposed on the top surface of the first supporting member 34 .

[0091] In other embodiments, the limiting member 38 can be fixed to the first bearing member 34. The top surface of the limiting member 38 faces the bottom surface of the second bearing member 36, the top surface of the limiting member 38 is connected to the limiting column 381, and the bottom surface of the second bearing member 36 is provided with a limiting hole 341. Alternatively, the top surface of the limiting member 38 is provided with a limiting hole 341, and the bottom surface of the second bearing member 36 is provided with a limiting column 381.

[0092] In some other embodiments, the first bearing member 34 may not be provided, the first insulating member 35 may be provided on the outer surface of the top plate 22, and the limiting hole 341 may be provided on the outer surface of the top plate 22. Similarly, the second bearing member 36 may not be provided, and the second insulating member 37 and the limiting member 38 may be provided on the bottom surface of the sliding member 33. In some other embodiments, the sliding member 33 may not be provided, and the second insulating member 37 may be provided to be directly connected to the transmission part 12 of the driving member 10.

[0093] In other embodiments, the first bearing member 34, the first insulating member 35, the second bearing member 36, the second insulating member 37 and the sliding member 33 may not be provided, but the top plate 22 of the base 20 may be made of an insulating material, or an insulating layer may be provided on the outer surface of the top plate 22. The transmission part 12 of the driving member 10 may be made of an insulating material, or an insulating layer may be provided on the outer surface of the transmission part 12. In this case, the top plate 22 of the base 20 may be directly connected to the first detection module 40, and the transmission part 12 of the driving member 10 may be directly connected to the second detection module 50.

[0094] In some embodiments, reference Figure 8 and Fig. 9 , Figure 8 yes Figure 6 The structural diagram of the first detection module of the flatness detection device 100 is shown in FIG. Fig. 9 yes Figure 8 The first detection module 40 includes a first detection member 41 , a guide member 42 , a positioning member 43 , a first insulating sleeve 44 , a first elastic member 45 and a first conductive member 46 .

[0095] The first elastic member 45 can be a spring or elastic rubber.

[0096] The first detection member 41 may be made of iron, steel, brass or alloy. The first detection member 41 is in the shape of a rectangular plate. In other embodiments, the first detection member 41 may be in the shape of a circular plate, a triangular plate or an irregular plate. This application is not limited thereto.

[0097] The first detection member 41 includes a first upper surface 411 and a first lower surface 412. Along the thickness direction of the first detection member 41, the first upper surface 411 and the first lower surface 412 are opposite to each other. The first upper surface 411 includes a first detection surface 413 and a first setting surface 414. The first detection surface 413 and the first setting surface 414 have the same orientation. The shape of the first detection surface 413 is the same as the shape of the surface to be detected of the component to be detected, and the area of ​​the first detection surface 413 is the same as the area of ​​the surface to be detected of the component to be detected, and the same includes processing errors. The first setting surface 414 surrounds the first detection surface 413. Along the thickness direction of the first detection member 41, the distance from the first detection surface 413 to the first lower surface 412 is greater than the distance from the first setting surface 414 to the first lower surface 412, that is, the first detection surface 413 is higher than the first setting surface 414. In other embodiments, the first detection surface 413 and the first setting surface 414 can be flush. Or, the first detection surface 413 can be lower than the first setting surface 414.

[0098] The first detection member 41 is provided with a first mounting hole 415, a guide hole 416 and a positioning hole 417. The first mounting hole 415 penetrates the first detection member 41 along the thickness direction of the first detection member 41. Specifically, the first mounting hole 415 penetrates the first detection surface 413 and the first lower surface 412. The first mounting hole 415 may also penetrate only the first detection surface 413 without penetrating the first lower surface 412. The guide hole 416 and the positioning hole 417 are recessed in the first setting surface 414. The guide hole 416 and the positioning hole 417 may penetrate the first lower surface 412 or may not penetrate the first lower surface 412. The number of the guide holes 416 is a positive integer greater than or equal to 1, for example, the guide holes 416 may be 1, 2, 3 or 4, etc. The number of the positioning holes 417 is a positive integer greater than or equal to 3, for example, the positioning holes 417 may be 3, 4, 5, 6, 7, 8 or 9, etc. In some embodiments, the number of the positioning holes 417 is 9, wherein 8 positioning holes 417 are arranged at intervals along the edge of the first setting surface 414 , and the remaining positioning hole 417 is adjacent to the first detection surface 413 .

[0099] The guide member 42 is connected to the first detection member 41, and at least a portion of the guide member 42 is protruding relative to the first setting surface 414, and the guide member 42 and the first detection member 41 are insulated from each other. The guide member 42 can be made of an insulating material, or the guide member 42 and the first detection member 41 are insulated by a guide insulating member 47.

[0100] In some embodiments, reference Figure 8 and Fig. 9 , the guide member 42 is arranged in the guide hole 416, and a part of the guide member 42 extends out of the guide hole 416. The guide member 42 is made of metal material to increase the structural strength of the guide member 42. The outer circumference of the guide member 42 is sleeved with a guide insulating member 47, and the guide insulating member 47 is located between the outer circumference of the guide member 42 and the hole wall of the guide hole 416. In other embodiments, the guide member 42 can be made of insulating material, so that the guide insulating member 47 is not required. In other embodiments, the guide member 42 is made of metal material, and the guide insulating member 47 can be an insulating layer coated or bonded to the outer circumference of the guide member 42, or the guide insulating member 47 can be an insulating layer coated or bonded to the hole wall of the guide hole 416.

[0101] In other embodiments, the first detection member 41 may not be provided with a guide hole 416, but the guide member 42 may be directly fixed to the first setting surface 414. When the guide member 42 is made of a metal material, a guide insulating member 47 may be provided between the guide member 42 and the first setting surface 414. The guide insulating member 47 may be an insulating layer coated or bonded to the first setting surface 414, or an insulating layer coated or bonded to the guide member 42, or the guide insulating member 47 may be a separately processed insulating pad, etc.

[0102] refer to Figure 8 and Fig. 9 The positioning member 43 is connected to the first detection member 41, and at least a portion of the positioning member 43 is protruding relative to the first setting surface 414. The positioning member 43 and the first detection member 41 are insulated from each other. The positioning member 43 can be made of an insulating material. Alternatively, the positioning member 43 and the first detection member 41 are insulated by a positioning insulating member.

[0103] In some embodiments, the number of positioning members 43 is the same as the number of positioning holes 417, and multiple positioning members 43 are arranged in multiple positioning holes 417 in a one-to-one correspondence, and a part of the positioning member 43 extends out of the positioning hole 417. The positioning member 43 is made of metal material to increase the structural strength of the positioning member 43. The outer peripheral surface of the positioning member 43 is sleeved with a positioning insulating member (not shown), and the positioning insulating member is located between the outer peripheral surface of the positioning member 43 and the hole wall surface of the positioning hole 417. In other embodiments, the positioning member 43 can be made of insulating material, thereby eliminating the need to set a positioning insulating member. In other embodiments, the positioning member 43 is made of metal material, and the positioning insulating member can be an insulating layer coated or bonded to the outer peripheral surface of the positioning member 43, or the positioning insulating member can be an insulating layer coated or bonded to the hole wall surface of the positioning hole 417. The positioning member 43 is provided with a positioning end 431, and the positioning end 431 is located at one end of the positioning member 43 away from the first setting surface 414. The positioning end 431 is used to support the component to be detected, and can be a plane, an arcuate surface, or a pointed end, etc. Along the thickness direction of the first detection member 41 , the positioning end 431 is raised relative to the first setting surface 414 , and the positioning end 431 is also raised relative to the first detection surface 413 .

[0104] In some other embodiments, the first detection member 41 may not be provided with a positioning hole 417, but the positioning member 43 may be directly fixed to the first setting surface 414. When the positioning member 43 is made of a metal material, a positioning insulating member may be provided between the positioning member 43 and the first setting surface 414. The positioning insulating member may be an insulating layer coated or bonded to the first setting surface 414, or an insulating layer coated or bonded to the positioning member 43, or the positioning insulating member may be a separately processed insulating pad, etc.

[0105] refer to Fig.10 , Fig.10 yes Fig. 9Schematic diagram of the enlarged structure at A. The first insulating sleeve 44 can be made of insulating materials such as plastic or rubber. The first insulating sleeve 44 includes a first inner surface 441, a first outer surface 442, a first end face 443 and a second end face 444. The first end face 443 and the second end face 444 are opposite to each other along the length direction of the first insulating sleeve 44, and the first outer surface 442 is connected between the first end face 443 and the second end face 444. The first insulating sleeve 44 has a first through hole 445, and the first through hole 445 penetrates the first insulating sleeve 44 along the length direction of the first insulating sleeve 44, that is, the first through hole 445 penetrates the first end face 443 and the second end face 444. The first inner surface 441 is the hole wall surface of the first through hole 445, and the first outer surface 442 is opposite to the first inner surface 441. The first through hole 445 is a two-stepped hole. Specifically, the first through hole 445 includes a first hole 446 and a second hole 447. Along the length direction of the first insulating sleeve 44, the first hole 446 and the second hole 447 are connected and communicated. The first hole 446 and the second hole 447 are coaxial, and the coaxiality here includes a processing error. The first hole 446 passes through the first end face 443, and the second hole 447 passes through the second end face 444. The inner diameter of the first hole 446 is greater than the inner diameter of the second hole 447, and a first abutting surface 448 is formed between the first hole 446 and the second hole 447. In some other embodiments, the first hole 446 and the second hole 447 may also be non-coaxial.

[0106] refer to Fig.10 The first conductive member 46 is columnar, and includes a first end 461, a first detection end 462, and a first outer peripheral surface. Along the length direction of the first conductive member 46, the first end 461 and the first detection end 462 are opposite to each other, and the first outer peripheral surface is connected between the first end 461 and the first detection end 462. The first conductive member 46 includes a first conductive section 463 and a second conductive section 464. The first conductive section 463 and the second conductive section 464 are fixedly connected along the length direction of the first conductive member 46. The first end 461 is an end of the first conductive section 463 away from the second conductive section 464, and the first detection end 462 is an end of the second conductive section 464 away from the first conductive section 463. The outer diameter of the first conductive section 463 is greater than the outer diameter of the second conductive section 464. The first conductive section 463 and the second conductive section 464 are coaxial, and a first limiting surface 465 is formed between the first conductive section 463 and the second conductive section 464. In some other embodiments, the first conductive segment 463 and the second conductive segment 464 may also be non-coaxial.

[0107] refer to Fig.11 , Fig.11 yes Figure 8Schematic diagram of the CC-section structure. The first conductive member 46 is connected to the first detection member 41, the first conductive member 46 and the first detection member 41 are insulated from each other, and the first detection end 462 of the first conductive member 46 is raised relative to the first detection surface 413. Specifically, the first insulating member 35, the first conductive member 46 and the first elastic member 45 are all arranged in the first mounting hole 415, and the first insulating member 35 is sleeved on the first conductive member 46, so that the first insulating member 35 is located between the first conductive member 46 and the hole wall of the first mounting hole 415 to prevent the first conductive member 46 and the first detection member 41 from being electrically connected. One end of the first elastic member 45 abuts against the first end 461 of the first conductive member 46, and the first detection end 462 of the first conductive member 46 extends out of the first mounting hole 415. Specifically, the first insulating sleeve 44 is arranged in the first mounting hole 415, and the first insulating sleeve 44 and the first mounting hole 415 can be interference fit. The first end face 443 of the first insulating sleeve 44 is flush with the first lower surface 412, and the second end face 444 of the first insulating sleeve 44 is flush with the first detection surface 413. In other embodiments, the first end face 443 and the first lower surface 412 may not be flush, and the second end face 444 and the first detection surface 413 may not be flush. The first conductive member 46 is located in the first through hole 445, and the first conductive member 46 and the first through hole 445 can be clearance fit or transition fit. The first detection end 462, the first detection surface 413, the first setting surface 414 and the positioning end 431 are all oriented in the same direction, and the first end 461 and the first lower surface 412 are oriented in the same direction. The first conductive section 463 is located in the first hole 446, and the first abutting surface 448 contacts the first limiting surface 465 to prevent the first conductive member 46 from coming out of the first mounting hole 415. The second conducting section 464 is located in the second hole 447, and one end of the second conducting section 464 away from the first conducting section 463 (i.e., the first detection end 462) extends out of the second hole 447. In addition, the positioning end 431 protrudes relative to the first setting surface 414, and the first detection end 462 and the positioning end 431 of the first conducting member 46 both protrude relative to the first detection surface 413. The first elastic member 45 is located in the first hole 446, and one end of the first elastic member 45 abuts against one end of the first conducting section 463 away from the second conducting section 464.

[0108] In other embodiments, the first insulating sleeve 44 may be an insulating layer coated or bonded to the hole wall of the first mounting hole 415, or the first insulating sleeve 44 may be an insulating layer coated or bonded to the first outer peripheral surface of the first conductive member 46. The first mounting hole 415 may be a two-stepped hole having a first abutting surface 448 therein, and the first abutting surface 448 may cooperate with the first limiting surface 465 to prevent the first conductive member 46 from being separated from the first mounting hole 415.

[0109] refer to Fig.12 and Fig.13 , Fig.12 yes Figure 6 The structural diagram of the second detection module of the flatness detection device 100 is shown in FIG. Fig.13 yes Fig.12 The second detection module 50 is similar in structure to the first detection module 40 .

[0110] The second detection module 50 includes a second detection member 51 and a test assembly 52. ​​The second detection member 51 can be made of materials such as iron, steel, brass or alloy. The second detection member 51 is in the shape of a rectangular plate. In other embodiments, the second detection member 51 can be in the shape of a circular plate or a triangular plate. This application is not limited. The second detection member 51 includes a second upper surface 511 and a second lower surface 512. Along the thickness direction of the second detection member 51, the second upper surface 511 and the second lower surface 512 are opposite to each other. The second lower surface 512 includes a second detection surface 513 and a second setting surface 514. The distance from the second detection surface 513 to the second upper surface 511 is greater than the distance from the second setting surface 514 to the second upper surface 511, that is, the second detection surface 513 is lower than the second setting surface 514. In some other embodiments, the second detection surface 513 can be flush with the second upper surface 511.

[0111] The second detection member 51 is provided with a second mounting hole 515, and the second mounting hole 515 penetrates the second detection member 51 along the thickness direction of the second detection member 51, and the second mounting hole 515 can be a two-step hole. Specifically, the second mounting hole 515 penetrates the second setting surface 514 and the second upper surface 511. The number of the second mounting holes 515 is greater than or equal to 1, for example, the number of the second mounting holes 515 can be 3, 4, 5, 6, 7, 8 or 9, etc. In some embodiments, the number of the second mounting holes 515 is 9, of which 8 second mounting holes 515 are arranged at intervals along the edge of the first setting surface 414, and the remaining 1 positioning hole 417 is adjacent to the second detection surface 513.

[0112] The test assembly 52 includes a second insulating sleeve 53, a second elastic member 54 and a second conductive member 55. The second elastic member 54 may be a spring or elastic rubber, etc. The second insulating sleeve 53 may be made of insulating materials such as plastic or rubber.

[0113] refer to Fig.14 , Fig.14 yes Fig.13The second insulating sleeve 53 includes a second inner surface 531, a second outer surface 532, a third end face 533 and a fourth end face 534. The third end face 533 and the fourth end face 534 are opposite to each other along the length direction of the second insulating sleeve 53, and the second outer surface 532 is connected between the third end face 533 and the fourth end face 534. The second insulating sleeve 53 has a second through hole 535, and the second through hole 535 penetrates the second insulating sleeve 53 along the length direction of the second insulating sleeve 53, that is, the second through hole 535 penetrates the third end face 533 and the fourth end face 534. The second inner surface 531 is the hole wall surface of the second through hole 535, and the second outer surface 532 is opposite to the second inner surface 531. The second through hole 535 is a two-stepped hole. Specifically, the second through hole 535 includes a third hole 536 and a fourth hole 537. Along the length direction of the second insulating sleeve 53, the third hole 536 and the fourth hole 537 are connected and communicated. The third hole 536 and the fourth hole 537 are coaxial, and the coaxiality here includes a processing error. The third hole 536 passes through the third end face 533, and the fourth hole 537 passes through the fourth end face 534. The inner diameter of the third hole 536 is greater than the inner diameter of the fourth hole 537, and a second abutting surface 538 is formed between the third hole 536 and the fourth hole 537. In some other embodiments, the third hole 536 and the fourth hole 537 may also be non-coaxial.

[0114] refer to Fig.14 The second conductive member 55 is columnar, and includes a second end 551, a second detection end 552, and a second outer peripheral surface. Along the length direction of the second conductive member 55, the second end 551 and the second detection end 552 are opposite to each other, and the second outer peripheral surface is connected between the second end 551 and the second detection end 552. The second conductive member 55 includes a third conductive segment 553 and a fourth conductive segment 554. The third conductive segment 553 and the fourth conductive segment 554 are fixedly connected along the length direction of the second conductive member 55. The second end 551 is an end of the third conductive segment 553 away from the fourth conductive segment 554, and the second detection end 552 is an end of the fourth conductive segment 554 away from the third conductive segment 553. The outer diameter of the third conductive segment 553 is greater than the outer diameter of the fourth conductive segment 554. The third conductive segment 553 and the fourth conductive segment 554 are coaxial, and a second limiting surface 555 is formed between the third conductive segment 553 and the fourth conductive segment 554. In some other embodiments, the third conductive segment 553 and the fourth conductive segment 554 may also be non-coaxial.

[0115] The number of the test components 52 is the same as the number of the second mounting holes 515, and the multiple test components 52 are disposed in the multiple second mounting holes 515 in a one-to-one correspondence. Fig.15 , Fig.15 yes Fig.12DD-direction cross-sectional structural diagram. The second insulating member 37, the second elastic member 54 and the second conductive member 55 are all arranged in the second mounting hole 515. In addition, the second insulating member 37 is sleeved on the second conductive member 55, so that the second insulating member 37 is located between the second conductive member 55 and the hole wall surface of the second mounting hole 515 to prevent the second conductive member 55 from being electrically connected to the second detection member 51. One end of the second elastic member 54 abuts the second end 551 of the second conductive member 55, and the second detection end 552 of the second conductive member 55 extends out of the second mounting hole 515. Specifically, the second insulating sleeve 53 is arranged in the second mounting hole 515, and the second insulating sleeve 53 and the second mounting hole 515 can be interference fit. The third end face 533 of the second insulating sleeve 53 is flush with the second upper surface 511, and the fourth end face 534 of the second insulating sleeve 53 is flush with the second setting surface 514. In some other embodiments, the third end face 533 and the second upper surface 511 may not be flush, and the fourth end face 534 and the second setting surface 514 may not be flush. The second conductive member 55 is located in the second through hole 535, and the second conductive member 55 and the second through hole 535 may be clearance fit or transition fit. The second end 551 and the second upper surface 511 are oriented in the same direction, and the second detection end 552, the second detection surface 513 and the second setting surface 514 are oriented in the same direction. The third conductive section 553 is located in the third hole 536, the second abutting surface 538 contacts the second limiting surface 555, the fourth conductive section 554 is located in the fourth hole 537, and one end of the fourth conductive section 554 away from the third conductive section 553 (i.e., the second detection end 552) extends out of the fourth hole 537. In addition, the second detection end 552 protrudes relative to the second detection surface 513 and the second setting surface 514. The second elastic member 54 is located in the third hole 536 , and one end of the second elastic member 54 abuts against one end of the third conductive section 553 away from the fourth conductive section 554 .

[0116] In other embodiments, the second insulating sleeve 53 may be an insulating layer coated or bonded to the hole wall of the second mounting hole 515 , or the second insulating sleeve 53 may be an insulating layer coated or bonded to the second outer peripheral surface of the second conductive member 55 .

[0117] refer to Fig.16 , Fig.16 yes Figure 6A partial structural cross-sectional view of the flatness detection device 100 is shown in FIG. The first detection module 40 is arranged on the first insulating member 35. Specifically, the first detection member 41 is fixed to the first insulating member 35, and the first lower surface 412 of the first detection member 41 contacts the top surface of the first insulating member 35. The top surface of the first insulating member 35 closes the first mounting hole 415, and one end of the first elastic member 45 away from the first conductive section 463 abuts against the top surface of the first insulating member 35. That is, the two ends of the first elastic member 45 abut against one end of the first conductive member 46 and the top surface of the first insulating member 35, respectively. The first elastic member 45 is in a compressed state. And along the Z-axis direction, the positioning end 431, the first detection end 462 and the first detection surface 413 are arranged in sequence from top to bottom. That is, along the Z-axis direction, the positioning end 431 and the first detection end 462 of the first conductive member 46 are both protruding relative to the first detection surface 413. In other embodiments, the first mounting hole 415 may not pass through the first lower surface 412 of the first detection member 41, and the first mounting hole 415 only passes through the first detection surface 413. At this time, the two ends of the first elastic member 45 respectively abut one end of the first conductive member 46 and the bottom surface of the first mounting hole 415.

[0118] The first detection member 41, the first alarm 26, the first power supply 60 of the control module and the first conductive member 46 are electrically connected in sequence. The first alarm 26 is connected to the positive pole of the first power supply 60, and the first conductive member 46 is connected to the negative pole of the first power supply 60. In other embodiments, the first alarm 26 can also be connected to the negative pole of the first power supply 60, and the first conductive member 46 is connected to the positive pole of the first power supply 60. An electric wire can be passed through the first insulating member 35 so that the electric wire extends into the first mounting hole 415, and the electric wire is connected to the first elastic member 45 to achieve the electrical connection of the first detection member 41, or the first detection member 41 is directly connected to the electric wire.

[0119] refer to Fig.16, the second detection module 50 is arranged on the second insulating member 37, specifically, the second detection member 51 is fixed to the second insulating member 37, and the second upper surface 511 of the second detection member 51 contacts the bottom surface of the second insulating member 37. The bottom surface of the second insulating member 37 closes the second mounting hole 515, and one end of the second elastic member 54 away from the second conductive section 464 abuts against the bottom surface of the second insulating member 37. That is, the two ends of the second elastic member 54 abut against one end of the second conductive member 55 and the bottom surface of the second insulating member 37 respectively. The second elastic member 54 is in a compressed state. And along the Z-axis direction, the second detection end 552 of the second conductive member 55, the bottom end surface of the limit member 38 and the second detection surface 513 are arranged in sequence from bottom to top. That is, along the Z-axis direction, the second detection end 552 of the second conductive member 55 and the bottom end surface of the limit member 38 are both protruding relative to the second detection surface 513. In some other embodiments, the second mounting hole 515 may not penetrate the second upper surface 511 of the second detection member 51, and the second mounting hole 515 only penetrates the second setting surface 514. At this time, the two ends of the second elastic member 54 abut against one end of the second conductive member 55 and the bottom surface of the second mounting hole 515 respectively.

[0120] The second detection member 51, the second alarm 27, the second power supply 70 of the control module and the second conductive member 55 are electrically connected in sequence. And the second alarm 27 is connected to the positive pole of the second power supply 70, and the second conductive member 55 is connected to the negative pole of the second power supply 70. In other embodiments, the second alarm 27 can also be set to be connected to the negative pole of the second power supply 70, and the second conductive member 55 is connected to the positive pole of the second power supply 70. The wire can be passed through the second insulating member 37 so that the wire extends into the second mounting hole 515, and the wire is connected to the second elastic member 54 to achieve the electrical connection of the second detection member 51, or the second detection member 51 is directly connected to the wire. It can be understood that there are nine test components 52, among which the second detection member 51 of at least one test component 52 can be selected to be connected to the second alarm 27, for example, one, two, three, four or five can be selected, and the present application is not limited.

[0121] refer to Fig.17 and Fig.18 ,refer to Fig.17 , Fig.17 yes Figure 6 The flatness detection device 100 shown in FIG. 1 is a schematic diagram of a structure for detecting the flatness of a component to be detected. Fig.18 yes Fig.17Schematic diagram of a partial structure. The flatness detection device 100 can detect the flatness of a component to be detected, and the component to be detected includes a first surface to be detected and a second surface to be detected, and the first surface to be detected and the second surface to be detected are opposite to each other along the thickness direction of the component to be detected. During the detection, the component to be detected is placed on the first detection member 41 so that the first surface to be detected contacts the positioning end 431 of the positioning member 43. There is a gap between the first surface to be detected and the first detection surface 413.

[0122] Next, the driving member 10 drives the second detection member 51 to move downward until the limiting column 381 of the limiting member 38 extends into the limiting hole 341 of the first bearing member 34, and the bottom end surface of the limiting member 38 contacts the top surface of the first bearing member 34. This makes the first detection end 462 of the second conductive member 55 contact the second surface to be detected, and there is a gap between the second detection surface 513 and the second surface to be detected.

[0123] It is understood that if the component to be detected is not deformed, the first surface to be detected and the first detection surface 413 are kept in a spaced state, and the second detection surface 513 and the second surface to be detected are kept in a spaced state. If the component to be detected is deformed downward, the first surface to be detected and the first detection surface 413 will contact, and at this time, the first alarm 26 will alarm. If the component to be detected is deformed upward, the second surface to be detected and the second detection surface 513 are in contact, and at this time, the second alarm 27 will alarm. It is understood that if a part of the component to be detected is deformed downward and the other part is deformed upward, the first alarm 26 and the second alarm 27 will alarm at the same time. If a part of the component to be detected is deformed downward, so that the first surface to be detected and the first detection surface 413 are in contact, but the part of the first surface to be detected of the component to be detected that contacts the first conductive member 46 is deformed upward until the two are not in contact, and at this time only the second alarm 27 will alarm. It can be seen that the use of two detection modules can reduce the missed detection rate.

[0124] The component to be detected can be any component whose flatness needs to be detected. For example, the component to be detected can be a separate heat sink 207, in which case the first surface to be detected is the lower surface of the heat sink 207, and the second surface to be detected is the upper surface of the heat sink 207. The component to be detected can also be a separate middle frame 208, in which the first surface to be detected is the first support surface 212 of the middle plate 210, and the second surface to be detected is the second support surface 213 of the middle plate 210.

[0125] The component to be detected may also be an assembly of the middle frame 208 and the heat sink 207. In this case, the first surface to be detected includes the lower surface of the heat sink 207. The second surface to be detected includes the second support surface 213.

[0126] refer to Fig.19 and Fig.10 , Fig.19 yes Fig.17The flatness detection device 100 shown in FIG. 1 is a partial structural cross-sectional view of detecting the flatness of a component to be detected. Fig. 20 yes Fig.19 The following describes in detail how to detect the flatness of the heat sink 207 and the middle frame 208 when the component to be detected is an assembly of the middle frame 208 and the heat sink 207.

[0127] When it is necessary to detect the flatness of the heat sink 207, the heat sink 207 is bonded to the receiving groove 214 of the middle frame 208 using adhesive 219. Then the middle frame 208 is placed on the first detection module 40. Specifically, the first supporting surface 212 of the middle frame 208 faces the first upper surface 411 of the first detection member 41. The guide member 42 extends into the hole on the middle frame 208 to position the middle frame 208. Since the guide member 42 and the first detection member 41 are insulated from each other, the guide member 42 will not cause the middle frame 208 and the first detection member 41 to be electrically connected. The heat sink 207 faces the first detection surface 413, and the first supporting surface 212 faces the first setting surface 414.

[0128] Then, the first button 24 and the second button 25 are pressed simultaneously, so that the control module controls the transmission part 12 of the driving member 10 to move downward, so as to drive the second detection module 50 to move downward, until the limiting column 381 of the limiting member 38 extends into the limiting hole 341 of the first bearing member 34, and the bottom end surface of the limiting member 38 contacts the top surface of the first bearing member 34. The driving member 10 can be started only when the first button 24 and the second button 25 are pressed simultaneously, which can prevent misoperation and improve safety performance.

[0129] At this time, the first detection end 462 of the first conductive member 46 can contact the bottom surface of the main body 217 of the heat sink 207, the first elastic member 45 is in a compressed state, and one end of the first elastic member 45 abuts against the first end 461 of the first conductive member 46. The first conductive member 46 can move in the first mounting hole 415 along the axial direction of the first mounting hole 415. The elastic force of the first elastic member 45 is between 1N and 3N. The elastic force of the first elastic member 45 can be specifically 1N, 1.2N, 1.4N, 1.8N, 2N, 2.3N, 2.6N, 2.7N, 2.8N or 3N, etc. The first elastic member 45 can keep the first conductive member 46 in contact with the heat sink 207. In addition, when the portion of the first conductive member 46 extending out of the first mounting hole 415 is too long, when the heat sink 207 contacts the first detection end 462 of the first conductive member 46, the heat sink 207 can push the first conductive member 46 to move downward. At this time, the compression amount of the first elastic member 45 increases, which can prevent the first conductive member 46 from crushing the heat sink 207.

[0130] refer to Fig.21 , Fig.21Schematic diagram of the positional relationship between the positioning member 43 and the component to be detected of the flatness detection device 100, the first support surface 212 can contact the positioning end 431 of the positioning member 43, specifically, the positioning ends 431 of the nine positioning members 43 respectively contact nine positions of the first support surface 212. Because the positioning member 43 and the first detection member 41 are insulated from each other, the positioning member 43 will not cause the middle frame 208 and the first detection member 41 to be electrically connected.

[0131] refer to Fig.19 and Fig. 22 , Fig. 22 It is a schematic diagram of the positional relationship between the test component 52 and the component to be detected of the flatness detection device 100. The second detection end 552 of the second conductive member 55 contacts the second support surface 213 of the middle frame 208. Specifically, the second detection ends 552 of the nine second conductive members 55 contact nine positions of the second support surface 213 respectively. Along the Z-axis direction, the orthographic projection of the positioning member 43 on the first setting surface 414 of the first detection member 41 and the orthographic projection of the second conductive member 55 on the first setting surface 414 of the first detection member 41 at least partially overlap. In a specific embodiment, the nine second conductive members 55 are coaxial with the nine positioning members 43, respectively. In other embodiments, the second conductive member 55 and the positioning member 43 are partially staggered, and the other part corresponds.

[0132] The second elastic member 54 is in a compressed state, and one end of the second elastic member 54 abuts against the second end 551 of the second conductive member 55. The second conductive member 55 can move in the second mounting hole 515 along the axial direction of the second mounting hole 515. The elastic force of the second elastic member 54 is between 1N and 3N, and the elastic force of the second elastic member 54 can be specifically 1N, 1.3N, 1.6N, 1.9N, 2.1N, 2.3N, 2.5N, 2.7N, 2.9N or 3N, etc. The second elastic member 54 can keep the second conductive member 55 in contact with the middle frame 208. In addition, if the portion of the second conductive member 55 extending out of the second mounting hole 515 is too long, when the middle frame 208 contacts the second detection end 552 of the second conductive member 55, the middle frame 208 can push the second conductive member 55 to move upward, and at this time, the compression amount of the second elastic member 54 increases, which can prevent the second conductive member 55 from crushing the middle frame 208.

[0133] Normally, after the middle frame 208 is processed, it will be twisted and deformed, and the deformation of each middle frame 208 is inconsistent, but after the display screen 202 is installed, it will have a certain correction effect on the display screen 202. For example: one corner of the middle frame 208 is tilted upward, and the other corner is sunken downward. The display screen 202 is made of glass. When it is bonded to the middle frame 208 by the adhesive 219, the display screen 202 and the adhesive 219 will flatten the tilted corner of the middle frame 208 downward and flatten the sunken corner of the middle frame 208 upward. That is, part of the middle frame 208 can be corrected to a qualified part through the assembly process. If the detection is performed when the middle frame 208 is not assembled, excessive interception may occur, that is, the middle frame 208 that can be corrected to a qualified part during assembly may also be judged as an unqualified part.

[0134] In the embodiment of the present application, the nine positioning members 43 and the nine second conductive members 55 can have a certain shaping effect on the middle frame 208. For example, one corner of the middle frame 208 is tilted upward, and the other corner is recessed downward. The positioning member 43 and the second conductive member 55 can flatten the tilted corner of the middle frame 208 downward, and flatten the recessed corner of the middle frame 208 upward. That is, by setting the positioning member 43 and the second conductive member 55, the assembly state of the middle frame 208 can be simulated. In this way, excessive interception can be prevented and the detection accuracy can be improved.

[0135] And, reference Fig. 20 , if the heat sink 207 is not deformed, there is a first spacing L between the bottom surface of the heat sink 207 and the first detection surface 413. It can be understood that the first spacing L is equal to or slightly greater than the deformation tolerance of the heat sink 207. When the deformation amount of the heat sink 207 is within the deformation tolerance range, the heat sink 207 is a qualified product that meets the design requirements. In order to prevent excessive interception, that is, to prevent a qualified heat sink 207 from being judged as unqualified, the first spacing L is set to be equal to or slightly greater than the deformation tolerance of the heat sink 207, and the first spacing L is less than the distance between the display screen and the heat sink 207 during actual assembly. For example, the deformation tolerance can be Xmm, and the first spacing L satisfies the following conditions: X+0.01mm≥L≥Xmm.

[0136] refer to Fig. 20 , if the middle frame 208 is not deformed, there is a second spacing L0 between the second support surface 213 and the second detection surface 513 of the middle frame 208. It can be understood that the second spacing L0 is equal to or slightly greater than the deformation tolerance of the middle frame 208. When the deformation amount of the middle frame 208 is within the deformation tolerance range, the middle frame 208 is a qualified product that meets the design requirements. In order to prevent excessive interception, that is, to prevent the qualified middle frame 208 from being judged as unqualified, the second spacing L0 is set to be equal to or slightly greater than the deformation tolerance of the middle frame 208. For example, the deformation tolerance can be Amm, then the second spacing L0 satisfies the following conditions: A+0.01mm≥L0≥Amm.

[0137] The first detection member 41, the first alarm 26, the first power supply 60 of the control module, the first conductive member 46 and the heat sink 207 form a first conductive loop. The second detection member 51, the second alarm 27, the second power supply 70 of the control module, the second conductive member 55 and the middle frame 208 form a second conductive loop. It can be seen that the first conductive loop and the second conductive loop each have a power supply, that is, two power supplies are required. In other embodiments, the first conductive loop and the second conductive loop can share a power supply.

[0138] When the heat sink 207 is not deformed, the bottom surface of the heat sink 207 does not contact the first detection surface 413, the first conductive loop is disconnected, and the first alarm 26 does not sound an alarm, which proves that the heat sink 207 is qualified. Fig.23 , Fig.23 It is a structural diagram when the flatness detection device 100 detects that the component to be detected is unqualified. If the heat sink 207 is deformed, for example, the skirt 218 of the heat sink 207 is deformed, the first spacing L becomes 0, that is, the bottom surface of the skirt 218 is in contact with the first detection surface 413. Alternatively, the main body 217 of the heat sink 207 is deformed, which causes the bottom surface of the main body 217 to contact with the first detection surface 413. Since the first detection end 462 of the first conductive member 46 has contacted the bottom surface of the main body 217 of the heat sink 207, combined with the bottom surface of the skirt 218 of the heat sink 207 in contact with the first detection surface 413, the first conductive circuit is turned on, and the first alarm 26 will sound an alarm to remind the staff that the heat sink 207 is unqualified.

[0139] If the heat sink 207 is deformed, the middle frame 208 is also deformed, which may cause the first conductive loop to fail to conduct, thereby causing missed detection. The reason is that the heat sink 207 is stacked and fixed on the middle frame 208, and the heat sink 207 is in the form of a thin sheet. Therefore, when the middle frame 208 is deformed, it is easy to cause the heat sink 207 and the middle frame 208 to deform at the same time. In particular, when the middle frame 208 and the position corresponding to the first detection end 462 of the first conductive member 46 are bent and deformed upward, the main body 217 of the heat sink 207 will also bend and deform upward. At this time, the first detection end 462 of the first conductive member 46 and the bottom surface of the main body 217 of the heat sink 207 are not in contact, thereby causing the first conductive loop to fail to conduct.

[0140] The embodiment of the present application can solve the above problem by setting a second conductive loop. Specifically, if the area corresponding to the middle frame 208 and the second detection surface 513 is deformed upward, the second spacing L0 becomes 0, that is, the second support surface 213 of the middle frame 208 is in contact with the second detection surface 513. At this time, since the second detection end 552 of the second conductive member 55 has contacted the second support surface 213 of the middle frame 208, combined with the contact between the second support surface 213 of the middle frame 208 and the second detection surface 513, the second conductive loop is turned on. At this time, the second alarm 27 will alarm to remind the staff that the middle frame 208 is unqualified, and it can also remind the staff that the heat sink 207 may be unqualified. Of course, if the area corresponding to the middle frame 208 and the second detection surface 513 does not deform upward, the second conductive loop is in a disconnected state, and the second alarm 27 will not alarm, which proves that the middle frame 208 is qualified. In this way, the missed detection rate can be reduced.

[0141] After the detection is completed, the control module controls the transmission part 12 of the driving member 10 to move upward, so that the transmission part 12 drives the second detection module to move upward, so as to take out the middle frame 208 after the detection is completed. Specifically, when the driving member 10 moves downward, so that the second detection member 51 is pressed on the middle frame 208 for a set time, the control module can control the transmission part 12 of the driving member 10 to move upward. The set time is a pre-set time.

[0142] In summary, it can be seen that the flatness detection device 100 provided in the embodiment of the present application can detect the degree of deformation of all areas of the heat sink 207, and there is no need to compare the true value sample during the detection, and the detection result is not affected by the color difference of the stainless steel material, and the detection accuracy is high. In addition, the flatness detection device 100 provided in the embodiment of the present application can also simultaneously detect whether the flatness of the middle frame 208 is qualified, and has strong applicability.

[0143] The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A flatness detection device for detecting the flatness of a component to be detected, wherein the component to be detected includes a first surface to be detected; characterized in that: The flatness detection device comprises: a first detection member, a first conductive member, a positioning member, a first power supply and a first alarm; The first detection member includes a first detection surface, the first conductive member and the positioning member are both connected to the first detection member, the first conductive member and the first detection member are insulated from each other, and the positioning member and the first detection member are insulated from each other; the first conductive member includes a first detection end, and the positioning member is provided with a positioning end; the first detection end and the positioning end are oriented in the same direction as the first detection surface, and along the thickness direction of the first detection member, the first detection end and the positioning end are both protruding relative to the first detection surface; The positioning end is used to support the component to be detected, and along the thickness direction of the first detection member, the first detection end contacts the first surface to be detected; the first detection member, the first alarm, the first power supply, the first conductive member and the component to be detected form a first conductive circuit; when the component to be detected is not deformed, there is a gap between the first surface to be detected and the first detection surface, and the first conductive circuit is disconnected; when the component to be detected is deformed so that the first surface to be detected and the first detection surface are in contact, the first conductive circuit is connected, and the first alarm sounds an alarm.

2. The flatness detection device according to claim 1, characterized in that: The first detection member is provided with a first mounting hole, and the first mounting hole passes through the first detection surface; a first abutting surface is provided in the first mounting hole; The first conductive member further includes a first end and a first limiting surface, and along the thickness direction of the first detecting member, the first end and the first detecting end are opposite to each other; the first limiting surface is located between the first end and the first detecting end, and the first limiting surface and the first detecting end have the same direction; The flatness detection device also includes a first elastic member, the first elastic member and the first conductive member are both arranged in the first mounting hole, and the first elastic member is in a compressed state; one end of the first elastic member abuts against the first end portion so that the first abutting surface abuts against the first limiting surface, and the first detection end extends out of the first mounting hole.

3. The flatness detection device according to claim 2, characterized in that: A first insulating sleeve is provided between the hole wall surface of the first mounting hole and the first conducting member.

4. The flatness detection device according to claim 3, characterized in that: The first insulating sleeve is an insulating layer disposed on the wall surface of the first mounting hole; or, the first insulating sleeve is an insulating layer disposed on the outer peripheral surface of the first conductive member.

5. The flatness detection device according to claim 3, characterized in that: The first insulating sleeve is provided with a first through hole, the first through hole includes a first hole and a second hole, along the thickness direction of the first detection member, the first hole and the second hole are connected and communicated, the inner diameter of the first hole is larger than the inner diameter of the second hole, and the first abutting surface is formed between the first hole and the second hole; The first conductive member includes a first conductive section and a second conductive section. The first conductive section and the second conductive section are fixedly connected along the thickness direction of the first detection member. The outer diameter of the first conductive section is greater than the outer diameter of the second conductive section. A first limiting surface is formed between the first conductive section and the second conductive section. The first end portion is an end of the first conductive section away from the second conductive section, and the first detection end is an end of the second conductive section away from the first conductive section. The first insulating sleeve is fixed in the first mounting hole, the first conducting section is located in the first hole, and the second conducting section is located in the second hole.

6. The flatness detection device according to any one of claims 1 to 5, characterized in that: The first detection member further includes a first setting surface, and the first setting surface and the first detection surface have the same orientation; The positioning member is fixed to the first setting surface; or, the first detection member is further provided with a positioning hole, the positioning hole passes through the first setting surface; the positioning member is arranged in the positioning hole, and a part of the positioning member extends out of the positioning hole; The positioning end is located at an end of the positioning member away from the first setting surface.

7. The flatness detection device according to claim 6, characterized in that: The positioning member is made of an insulating material, or the positioning member is made of a metal material, and the positioning member and the first detection member are insulated by a positioning insulating member.

8. The flatness detection device according to any one of claims 1 to 5, characterized in that: The first detection member further includes a first setting surface, and the first setting surface and the first detection surface have the same orientation; The flatness detection device further includes a guide member; the guide member is fixed to the first setting surface; or the first detection member is further provided with a guide hole, the guide hole passes through the first setting surface; the guide member is arranged in the guide hole, and a part of the guide member extends out of the guide hole; The guide member and the first detection member are insulated from each other, and the guide member is used to extend into the hole of the component to be detected.

9. The flatness detection device according to claim 8, characterized in that: The guide member is made of insulating material; or, the guide member is made of metal material, and the guide member and the first detection member are insulated by a guide insulating member.

10. The flatness detection device according to any one of claims 1 to 5, characterized in that: The component to be detected further includes a second surface to be detected, and along the thickness direction of the component to be detected, the second surface to be detected is opposite to the first surface to be detected; The flatness detection device further includes: a second detection member, a second conductive member, a second power supply, and a second alarm; The second detection member includes a second detection surface, the second conductive member is connected to the second detection member, and the second conductive member and the second detection member are insulated from each other; the second conductive member includes a second detection end; the second detection end and the second detection surface are oriented in the same direction, and along the thickness direction of the second detection member, the second detection end is protruded relative to the second detection surface, and the second detection end contacts the second surface to be detected; The second detection member, the second alarm, the second power supply, the second conductive member and the component to be detected form a second conductive circuit; when the component to be detected is not deformed, there is a gap between the second surface to be detected and the second detection surface, and the second conductive circuit is disconnected; when the component to be detected is deformed so that the second surface to be detected and the second detection surface are in contact, the second conductive circuit is connected and the second alarm sounds an alarm.

11. The flatness detection device according to claim 10, characterized in that: The second detection member is provided with a second mounting hole, and the second mounting hole passes through the second detection surface; a second abutting surface is provided in the second mounting hole; The second conductive member further includes a second end and a second limiting surface, and along the thickness direction of the second detecting member, the second end and the second detecting end are opposite to each other; the second limiting surface is located between the second end and the second detecting end, and the second limiting surface and the second detecting end have the same orientation; The flatness detection device also includes a second elastic member, the second elastic member and the second conductive member are both arranged in the second mounting hole, and the second elastic member is in a compressed state; one end of the second elastic member abuts against the second end portion so that the second abutting surface abuts against the second limiting surface; the second detection end extends out of the second mounting hole.

12. The flatness detection device according to claim 10, characterized in that: Along the height direction of the flatness detection device, the orthographic projection of the positioning member on the first detection member and the orthographic projection of the second conductive member on the first detection member at least partially overlap.

13. The flatness detection device according to claim 10, characterized in that: The flatness detection device further includes a base, a support frame and a driving member; the support frame is arranged on the base, and the driving body of the driving member is connected to the support frame; the first detection member is arranged on the base, and the second detection member is arranged on the transmission part of the driving member; Along the thickness direction of the first detection member, the first detection surface and the second detection surface are opposite to each other; the driving member can drive the first detection member to move toward the second detection member so that the second detection end contacts the second detection surface, and there is a gap between the second detection surface and the second detection surface.

14. The flatness detection device according to claim 13, characterized in that: The flatness detection device further includes a first insulating member and a second insulating member; the first insulating member is disposed between the base and the first detection member, and the second insulating member is disposed between the transmission portion and the second detection member.

15. The flatness detection device according to claim 14, characterized in that: The flatness detection device further includes a first bearing member, a second bearing member and a limiting member, wherein the first bearing member is disposed between the first insulating member and the base, and the second bearing member is disposed between the second insulating member and the transmission part; the limiting member is connected to the first bearing member or the second bearing member; When the driving member drives the first detecting member to move toward the second detecting member, the opposite ends of the limiting member respectively abut against the first supporting member and the second supporting member, so that the second detecting end contacts the second surface to be detected, and there is a gap between the second surface to be detected and the second detecting surface.

16. The flatness detection device according to claim 15, characterized in that: The support frame includes a guide slide, a fixing member and a sliding member; one end of the guide slide is fixed to the base, and the fixing member is fixed to an end of the guide slide away from the base; the driving body is fixed to the fixing member; the sliding member is fixedly connected to the transmission part, and the sliding member is slidably connected to the guide slide; the second bearing member is connected to the sliding member.

17. An electronic device, characterized in that: The electronic device comprises a middle frame and a heat sink, wherein the heat sink is fixed to the middle frame; the middle frame and / or the heat sink are inspected using the flatness inspection device described in any one of claims 1 to 16.

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