Detection device and detection method

Abstract

The embodiment of the invention relates to the technical field of printing equipment, and particularly discloses a detection device and method, and the device comprises a rack which is provided with a detection platform, and the detection platform is provided with a detection region; the two first clamp assemblies are arranged on the detection platform, the two first clamp assemblies are oppositely arranged in a spaced mode in the first direction, each first clamp assembly comprises a first clamp, the first clamps can move in the first direction relative to the detection platform, the two first clamps synchronously move, and the detection area is located between the two first clamps; the first clamp assembly comprises two first clamps and two first sensors, one first sensor is arranged on one first clamp, the first sensor can move along with the first clamp in the first direction, the initial position of the first sensor is the same as that of the first clamp, and the control assembly is electrically connected with the first clamp assembly and the first sensors. In this way, whether the actual width of the to-be-detected plate in the first direction meets the standard width or not can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, and in particular to a detection device and a detection method. Background Art

[0002] Inkjet printing is a non-contact printing mode. The printing device does not need to be in physical contact with the printing substrate, so the material of the printing substrate is not limited. Commonly, inkjet printing can be applied to paper, wood, glass, crystal, metal plate, plastic (such as circuit board, etc.), etc.

[0003] At present, some printing equipment on the market includes a frame, a feeding module, a printing platform, a transfer module and a printing module. During the printing process, the printing substrate is stacked on the feeding module manually or by an external mechanism. The feeding module transports it to the set position, the printing platform moves to the bottom of the printing substrate, the transfer module grabs the printing substrate onto the printing platform, and the clamp on the printing platform clamps the printing substrate. After that, the printing platform drives the printing substrate to move to the printing station to facilitate the printing module to print. Among them, the same type of printing substrates are often clamped by a fixed displacement clamp.

[0004] During the process of realizing the present invention, the inventors of the present invention found that: in the actual production process, the sizes of the same type of printing substrates are inevitably different. When the size of the printing substrate is small, the clamp cannot be clamped. When the size of the printing substrate is large, the clamp is prone to damage or breakage of the printing substrate when it is fixedly displaced, thereby affecting the printing efficiency and being relatively inconvenient. Summary of the invention

[0005] In view of the above problems, the embodiments of the present invention provide a detection device and a detection method, which overcome the above problems or at least partially solve the above problems.

[0006] According to one aspect of the present invention, there is provided a detection device, comprising a frame, a detection platform, a detection area, and a plate to be detected is located in the detection area; two first fixture assemblies are arranged on the detection platform, the two first fixture assemblies are arranged opposite to each other and spaced apart along a first direction, the first fixture assembly comprises a first fixture, the first fixture can be moved along the first direction relative to the detection platform, the two first fixtures can approach each other or move away from each other along the first direction, the two first fixtures move synchronously, and the detection area is located between the two first fixtures; two first sensors, one of the first sensors is arranged on the first fixture, the first sensor can move with the first fixture moving along the first direction, the first sensor and the first fixture are connected to each other. The initial positions are the same, the first sensor is used to detect both sides of the board to be detected along the first direction; a control component, the control component is electrically connected to the first clamp component and the first sensor; wherein, the initial spacing distance between the two first clamps along the first direction is S1, the standard width of the board to be detected along the first direction is W, when the two first sensors detect the board to be detected at the same time, the movement distance of the first clamp from the initial position along the first direction is K1, the detection tolerance range of the first sensor along the first direction is d1, when S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component issues an alarm and controls the first clamp to stop moving, and when 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm.

[0007] In an optional manner, the detection device includes two second clamp assemblies, which are arranged on the detection platform, the two second clamp assemblies are arranged opposite to each other and spaced apart along a second direction, the second clamp assemblies are electrically connected to the control assembly, the second clamp assembly includes a second clamp, the second clamp can move along the second direction relative to the detection platform, the two second clamps can approach each other or move away from each other along the second direction, the two second clamps move synchronously, the detection area is located between the two second clamps, and the second direction is perpendicular to the first direction; the detection device also includes two second sensors, one of the second sensors is arranged on one of the second clamps, the second sensor is electrically connected to the control assembly, and the second sensor can move along the second direction with the second clamp. The second sensor moves in the second direction, and the initial positions of the second sensor and the second clamp are the same. The second sensor is used to detect both sides of the plate to be detected along the second direction; wherein, the initial spacing distance between the two second clamps along the second direction is S2, and the standard length of the plate to be detected along the second direction is h. When the two second sensors detect the plate to be detected at the same time, the moving distance of the second clamp from the initial position along the second direction is K2, and the detection tolerance range of the second sensor along the second direction is d2. When S2-2×K2-h>2×d2 or S2-2×K2-h<0, the control component issues an alarm and controls the second clamp to stop moving. When 0≤S2-2×K2-h≤2×d2, the control component does not issue an alarm.

[0008] In an optional manner, when S1-2×K1-W>2×d1, the actual width of the board to be detected along the first direction is greater than the standard width of the board to be detected along the first direction; when S1-2×K1-W<0, the actual width of the board to be detected along the first direction is less than the standard width of the board to be detected along the first direction; when 0≤S1-2×K1-W≤2×d1, the actual width of the board to be detected along the first direction is within the standard width range of the board to be detected along the first direction.

[0009] In an optional manner, when S2-2×K2-h>2×d2, the actual length of the plate to be detected along the second direction is greater than the standard length of the plate to be detected along the second direction; when S2-2×K2-h<0, the actual length of the plate to be detected along the second direction is less than the standard length of the plate to be detected along the second direction; when 0≤S2-2×K2-h≤2×d2, the actual length of the plate to be detected along the second direction is within the standard length range of the plate to be detected along the second direction.

[0010] In an optional manner, the detection tolerance range d1 of the first sensor along the first direction is a positive deviation of 0.5 cm or a negative deviation of 0.5 cm, and the detection tolerance range d2 of the second sensor along the second direction is a positive deviation of 0.5 cm or a negative deviation of 0.5 cm.

[0011] In an optional manner, both the first sensor and the second sensor are optical fiber sensors, and the detection light of the first sensor and the second sensor are emitted toward the board to be detected in a vertical direction.

[0012] According to another aspect of the present invention, there is provided a detection method using the above detection device, comprising the following steps: S11: defining the detection tolerance range of the first sensor along the first direction as d1, and defining the detection tolerance range of the second sensor along the second direction as d2; S12: measuring the initial spacing distance S1 of the two first clamps along the first direction, measuring the initial spacing distance S2 of the two second clamps along the second direction, inputting the standard width W of the board to be detected along the first direction into the control component, inputting the standard length h of the board to be detected along the second direction into the control component, the two first clamps first move from their initial positions along the first direction toward the board to be detected, and the two second clamps move from their initial positions along the second direction toward the board to be detected; S13: being located at When the two first sensors on the two first clamps detect the board to be detected at the same time, the moving distance K1 of the first clamp from the initial position along the first direction is measured; when the two second sensors on the two second clamps detect the board to be detected at the same time, the moving distance K2 of the second clamp from the initial position along the second direction is measured; S13: define the detection tolerance range of the first sensor along the first direction as d1, and define the detection tolerance range of the second sensor along the second direction as d2; S14: determine the size between the actual width of the board to be detected along the first direction and the standard width of the board to be detected along the first direction, and determine the size between the actual length of the board to be detected along the second direction and the standard length of the board to be detected along the second direction.

[0013] In an optional manner, step S14 also includes: if S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component issues an alarm; if 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm.

[0014] In an optional manner, step S14 also includes: if S2-2×K2-h>2×d2 or S2-2×K2-h<0, the control component issues an alarm; if 0≤S2-2×K2-h≤2×d2, the control component does not issue an alarm.

[0015] In an optional manner, step S11 also includes: the first clamp and the second clamp move successively with an interval time of t, the two first clamps first move from an initial position along the first direction toward the direction of the board to be tested, and after t time, the two second clamps move from the initial position along the second direction toward the direction of the board to be tested.

[0016] The beneficial effects of the embodiment of the present invention are as follows: Different from the prior art, the embodiment of the present invention is provided with a frame, two first clamp assemblies, two first sensors and a control assembly. Among them, the frame is provided with a detection platform, the detection platform is provided with a detection area, the board to be detected is located in the detection area, the two first clamp assemblies are provided on the detection platform, the two first clamp assemblies are arranged oppositely and spaced apart along a first direction, the first clamp assembly includes a first clamp, the first clamp can move relative to the detection platform along the first direction, the two first clamps can approach each other or move away from each other along the first direction, the two first clamps move synchronously, the detection area is located between the two first clamps, a first sensor is provided on a first clamp, the first sensor can move with the first clamp along the first direction, the first sensor has the same initial position as the first clamp, and the first sensor is used to detect the board to be detected along the first direction. On both sides, the control component is connected to the first fixture component and the first sensor. The initial spacing distance of the two first fixtures along the first direction is S1, and the standard width of the board to be detected along the first direction is W. When the two first sensors detect the board to be detected at the same time, the moving distance of the first fixture from the initial position along the first direction is K1, and the detection tolerance range of the first sensor along the first direction is d1. When S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component issues an alarm and controls the first fixture to stop moving. When 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm. With this setting, the user can input the standard width W of the board to be detected along the first direction To the control component, and control the two first clamps to move along the first direction, use the first sensor located on the first clamp to detect the board to be detected, when 0≤S1-2×K1-W≤2×d1, the actual width of the board to be detected along the first direction is within the standard width range of the board to be detected along the first direction. At this time, the width size of the board to be detected along the first direction is qualified, and the control component does not issue an alarm. When S1-2×K1-W>2×d1, it means that the actual width of the board to be detected along the first direction is greater than the standard width of the board to be detected along the first direction. At this time, the value of K1 is small, and the moving distance of the first clamp from the initial position along the first direction is small, indicating that the actual width of the board to be detected along the first direction is It is larger and does not meet the standard width range of the board to be tested along the first direction. Therefore, the board to be tested is unqualified. The control component issues an alarm and controls the first clamp to stop moving. When S1-2×K1-W<0, it means that the actual width of the board to be tested along the first direction is smaller than the standard width of the board to be tested along the first direction. At this time, the value of K1 is larger, and the first clamp moves a longer distance from the initial position along the first direction, indicating that the actual width of the board to be tested along the first direction is smaller and does not meet the standard width range of the board to be tested along the first direction. Therefore, the board to be tested is unqualified, the control component issues an alarm and controls the first clamp to stop moving. The user can replace or remove the board to be tested according to the alarm issued by the control component.This reduces the possibility that the board to be tested is damaged when the first fixture moves in a fixed displacement due to the large size of the board to be tested, or reduces the possibility that the first fixture cannot be clamped due to the small size of the board to be tested, thereby improving printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 is a schematic diagram of an application state of a detection device according to an embodiment of the present invention;

[0019] Figure 2 is another application state schematic diagram of the detection device according to the embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of a process of a detection method according to an embodiment of the present invention;

[0021] Figure 4 1 is another flow chart of the detection method according to the embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0024] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0025] It should be noted that the boards to be tested in this application include but are not limited to PCB boards, thin plates, metal plates, composite material boards, etc. This application is described using the application to PCB boards as an example.

[0026] In order to better illustrate the structure of the detection device 1000, the structure of the detection device 1000 will be described in combination with the X, Y, and Z axes. The X, Y, and Z axes are perpendicular to each other, the first direction is along the X-axis direction, the second direction is along the Y-axis direction, and the vertical direction is along the Z-axis direction.

[0027] See also Figure 1 and Figure 2 The detection device 1000 includes a frame 10, two first fixture assemblies 20, two second fixture assemblies 30, two first sensors 40, two second sensors 50 and a control assembly. The two first fixture assemblies 20 and the two second fixture assemblies 30 are both arranged on the frame 10, a first sensor 40 is arranged on a first fixture assembly 20, a second sensor 50 is arranged on a second fixture assembly 30, and the control assembly is electrically connected to the first fixture assembly 20, the second fixture assembly 30, the first sensor 40 and the second sensor 50. The frame 10, the two first fixture assemblies 20, the two second fixture assemblies 30, the two first sensors 40, the two second sensors 50 and the control assembly are specifically described below.

[0028] For the above-mentioned rack 10, if Figure 1 and Figure 2 As shown, a detection platform 101 is provided on the frame 10, and a detection area (not shown) is provided on the detection platform 101, and the PCB board to be detected 60 is located in the detection area. Optionally, the detection platform 101 is a printing platform, and the PCB board to be detected is located on the printing platform, waiting to enter the next process for printing.

[0029] For the first clamp assembly 20 and the second clamp assembly 30, as Figure 1 and Figure 2 As shown, the first clamp assembly 20 and the second clamp assembly 30 are both arranged on the detection platform 101, the two first clamp assemblies 20 are arranged opposite to each other and spaced apart along the first direction X, the two second clamp assemblies 30 are arranged opposite to each other and spaced apart along the second direction Y, the first clamp assembly 20 is used to clamp the two sides of the PCB board to be detected along the first direction X, and the second clamp assembly 30 is used to clamp the two sides of the PCB board to be detected along the second direction Y.

[0030] In some embodiments, the first clamp assembly 20 includes a first clamp 201 and a first movable assembly. The first movable assembly is disposed on the detection platform 101. The first clamp 201 is connected to a side of the first movable assembly away from the detection platform 101. The first clamp 201 can move along a first direction X relative to the detection platform 101 driven by the first movable assembly. The two first clamps 201 can approach or move away from each other along the first direction X. The two first clamps 201 move synchronously, and the detection area is located between the two first clamps 201. Optionally, the first moving assembly includes a first slider, a second slider, a slide rail, a lead screw and a motor, the slide rail is arranged on the detection platform 101, the first slider and the second slider are both slidably mounted on the slide rail, one of the first clamps 201 is connected to the first slider, the other first clamp 201 is connected to the second slider, the lead screw is threadedly connected to the first slider and the second slider, the thread direction between the first slider and the lead screw is opposite to the thread direction between the second slider and the lead screw, the output end of the motor is connected to the lead screw, and the lead screw is driven to rotate by the motor, so that the first slider and the second slider can be driven to move closer to or away from each other on the slide rail, thereby realizing driving the two first clamps 201 to move closer to or away from each other along the first direction X. It can be understood that: in order to realize the movement principle of the two first clamps 201 moving closer to or away from each other along the first direction X, the structure of the first moving assembly is not limited to the above, and can also be other structures, such as: the matching mode of gears and racks, etc.

[0031] In some embodiments, the initial spacing distance between the two first clamps 201 along the first direction X is S1, and the initial spacing distance between the two second clamps along the second direction Y is S2. It can be understood that the specific data of the initial spacing distance S1 between the two first clamps 201 along the first direction X and the specific data of the initial spacing distance S2 between the two second clamps along the second direction Y can be set by the user according to actual needs, and are not specifically limited in this application.

[0032] In some embodiments, the second fixture assembly 30 includes a second fixture 301 and a second moving assembly, the second moving assembly is disposed on the detection platform 101, the second fixture 301 is connected to the side of the second moving assembly away from the detection platform 101, the second fixture 301 can be driven by the second moving assembly to move relative to the detection platform 101 along the second direction Y, the two second fixtures 301 can approach each other or move away from each other along the second direction Y, the two second fixtures 301 move synchronously, and the detection area is located between the two second fixtures 301. It can be understood that the function and structure of the second moving assembly can refer to the function and structure of the first moving assembly, and will not be repeated here.

[0033] For the first sensor 40, the second sensor 50 and the control assembly (not shown), as Figure 1 and Figure 2 As shown, a first sensor 40 is disposed on a first fixture 201, and the first sensor 40 can move along the first direction X with the first fixture 201, and the first sensor 40 has the same initial position as the first fixture 201, and the first sensor 40 is used to detect both sides of the PCB board to be detected along the first direction X, and a second sensor 50 is disposed on a second fixture 301, and the second sensor 50 is electrically connected to the control component, and the second sensor 50 can move along the second direction Y with the second fixture 301, and the second sensor 50 has the same initial position as the second fixture 301, and the second sensor 50 is used to detect both sides of the PCB board to be detected along the second direction Y. Optionally, both the first sensor 40 and the second sensor 50 are optical fiber sensors, and the detection light of the first sensor 40 and the second sensor 50 is emitted toward the PCB board to be detected along the vertical direction Z.

[0034] In some embodiments, the standard width of the PCB board to be inspected along the first direction X is W, and the standard width of the PCB board to be inspected along the first direction X refers to the width of a qualified PCB board to be inspected along the first direction X.

[0035] In some embodiments, when two first sensors 40 detect the PCB board to be detected at the same time, the moving distance of the first fixture 201 from the initial position along the first direction X is K1, and the two first sensors 40 move toward the direction of the PCB board to be detected under the drive of the two first fixtures 201. During the movement, one of the first sensors 40 may detect the PCB board to be detected first. At this time, the first fixture 201 continues to move and pushes the PCB board to be detected to move until the two first sensors 40 detect the PCB board to be detected at the same time, and the first fixture 201 stops moving. At this time, the moving distance of the first fixture 201 from the initial position along the first direction X is measured to be K1. For the specific data of K1, the user can obtain it according to actual measurement, and it is not specifically limited in this application.

[0036] In some embodiments, the detection tolerance range of the first sensor 40 along the first direction X is d1. Optionally, the detection tolerance range d1 of the first sensor 40 along the first direction X is a positive deviation of 0.5 cm or a negative deviation of 0.5 cm.

[0037] In some embodiments, when 0≤S1-2×K1-W≤2×d1, the actual width of the PCB board to be detected along the first direction X is within the standard width range of the PCB board to be detected along the first direction X, indicating that the actual width tolerance range of the PCB board to be detected along the first direction X is within the range allowed by the detection tolerance d1. At this time, the width dimension of the PCB board to be detected along the first direction X is qualified, and the control component does not issue an alarm.

[0038] In some embodiments, when S1-2×K1-W>2×d1, the actual width of the PCB board to be detected along the first direction X is greater than the standard width of the PCB board to be detected along the first direction X. At this time, the value of K1 is small, and the moving distance of the first clamp 201 from the initial position along the first direction X is small, indicating that the actual width of the PCB board to be detected along the first direction X is large, indicating that the actual width tolerance range of the PCB board to be detected along the first direction X exceeds the range allowed by the detection tolerance d1, and does not meet the standard width range of the PCB board to be detected along the first direction X. Therefore, the PCB board to be detected is unqualified, and the control component sends an alarm and controls the first clamp 201 to stop moving.

[0039] In some embodiments, when S1-2×K1-W<0, the actual width of the PCB board to be detected along the first direction X is smaller than the standard width of the PCB board to be detected along the first direction X. At this time, the value of K1 is larger, and the first clamp 201 moves a longer distance from the initial position along the first direction X, indicating that the actual width of the PCB board to be detected along the first direction X is smaller and does not meet the standard width range of the PCB board to be detected along the first direction X. Therefore, the PCB board to be detected is unqualified, and the control component sends out an alarm and controls the first clamp 201 to stop moving.

[0040] In some embodiments, the standard length of the PCB board to be inspected along the second direction Y is h, and the standard length of the PCB board to be inspected along the second direction Y refers to the length of a qualified PCB board to be inspected along the second direction Y.

[0041] In some embodiments, when the two second sensors 50 detect the PCB board to be detected at the same time, the moving distance of the second fixture 301 from the initial position along the second direction Y is K2, and the two second sensors 50 move toward the direction of the PCB board to be detected under the drive of the two second fixtures 301. During the movement, one of the second sensors 50 may detect the PCB board to be detected first. At this time, the second fixture 301 continues to move and pushes the PCB board to be detected to move until the two second sensors 50 detect the PCB board to be detected at the same time, and the second fixture 301 stops moving. At this time, the moving distance of the second fixture 301 from the initial position along the second direction Y is measured to be K2. For the specific data of K2, the user can obtain it according to actual measurement, and it is not specifically limited in this application.

[0042] In some embodiments, the detection tolerance range of the second sensor 50 along the second direction Y is d2. Optionally, the detection tolerance range d2 of the second sensor 50 along the second direction Y is a positive deviation of 0.5 cm or a negative deviation of 0.5 cm.

[0043] In some embodiments, when 0≤S2-2×K2-h≤2×d2, the actual length of the PCB board to be detected along the second direction Y is within the standard length range of the PCB board to be detected along the second direction Y, indicating that the actual length tolerance range of the PCB board to be detected along the second direction Y is within the range allowed by the detection tolerance d2. At this time, the length dimension of the PCB board to be detected along the second direction Y is qualified, and the control component does not issue an alarm.

[0044] In some embodiments, when S2-2×K2-h>2×d2, the actual length of the PCB board to be detected along the second direction Y is greater than the standard length of the PCB board to be detected along the second direction Y. At this time, the value of K2 is small, and the moving distance of the second clamp 301 from the initial position along the second direction Y is small, indicating that the actual length of the PCB board to be detected along the second direction Y is large, indicating that the actual length tolerance range of the PCB board to be detected along the second direction Y exceeds the range allowed by the detection tolerance d2, and does not meet the standard length range of the PCB board to be detected along the second direction Y. Therefore, the PCB board to be detected is unqualified, and the control component issues an alarm and controls the second clamp 301 to stop moving.

[0045] In some embodiments, when S2-2×K2-h<0, the actual length of the PCB board to be detected along the second direction Y is less than the standard length of the PCB board to be detected along the second direction Y. At this time, the value of K2 is large, and the second clamp 301 moves a long distance from the initial position along the second direction Y, indicating that the actual length of the PCB board to be detected along the second direction Y is small and does not meet the standard length range of the PCB board to be detected along the second direction Y. Therefore, the PCB board to be detected is unqualified, and the control component sends out an alarm and controls the second clamp 301 to stop moving.

[0046] See also Figure 3 The present invention also provides an embodiment of a detection method using the above detection device, the detection method comprising the following steps:

[0047] S11: defining a detection tolerance range of the first sensor along the first direction as d1, and defining a detection tolerance range of the second sensor along the second direction as d2;

[0048] S12: measure the initial spacing distance S1 of the two first clamps along the first direction, measure the initial spacing distance S2 of the two second clamps along the second direction, input the standard width W of the board to be tested along the first direction into the control component, input the standard length h of the board to be tested along the second direction into the control component, the two first clamps first move from their initial positions along the first direction toward the board to be tested, and the two second clamps move from their initial positions along the second direction toward the board to be tested;

[0049] S13: when the two first sensors located on the two first fixtures detect the board to be detected at the same time, measure the moving distance K1 of the first fixture from the initial position along the first direction; when the two second sensors located on the two second fixtures detect the board to be detected at the same time, measure the moving distance K2 of the second fixture from the initial position along the second direction;

[0050] S14: Determine the size between the actual width of the board to be tested along the first direction and the standard width of the board to be tested along the first direction, and determine the size between the actual length of the board to be tested along the second direction and the standard length of the board to be tested along the second direction.

[0051] Among them, the user can determine the size relationship between the actual width of the board to be tested along the first direction and the standard width of the board to be tested along the first direction based on the size relationship between S1-2×K1-W and 2×d1, and determine the size relationship between the actual length of the board to be tested along the second direction and the standard length of the board to be tested along the second direction based on the size relationship between S2-2×K2-h and 2×d2.

[0052] In some embodiments, please refer to Figure 4 , step S14 also includes: if S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component issues an alarm; if 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm, wherein, if 0≤S1-2×K1-W≤2×d1, the actual width of the plate to be detected along the first direction is within the standard width range of the plate to be detected along the first direction, at this time, the width dimension of the plate to be detected along the first direction is qualified, and the control component does not issue an alarm; if S1-2×K1-W>2×d1, the actual width of the plate to be detected along the first direction is greater than the standard width of the plate to be detected along the first direction, at this time, the value of K1 is small, and the first clamp is initially The moving distance along the first direction from the initial position is small, which means that the actual width of the board to be tested along the first direction is large, which does not meet the standard width range of the board to be tested along the first direction. Therefore, the board to be tested is unqualified, and the control component sends out an alarm and controls the first clamp to stop moving. If S1-2×K1-W<0, the actual width of the board to be tested along the first direction is smaller than the standard width of the board to be tested along the first direction. At this time, the value of K1 is large, and the moving distance of the first clamp from the initial position along the first direction is large, which means that the actual width of the board to be tested along the first direction is small, which does not meet the standard width range of the board to be tested along the first direction. Therefore, the board to be tested is unqualified, and the control component sends out an alarm and controls the first clamp to stop moving.

[0053] In some embodiments, step S14 also includes: if S2-2×K2-h>2×d2 or S2-2×K2-h<0, the control component issues an alarm; if 0≤S2-2×K2-h≤2×d2, the control component does not issue an alarm, wherein, if 0≤S2-2×K2-h≤2×d2, the actual length of the plate to be detected along the second direction is within the standard length range of the plate to be detected along the second direction. At this time, the length dimension of the plate to be detected along the second direction is qualified, and the control component does not issue an alarm; if S2-2×K2-h>2×d2, the actual length of the plate to be detected along the second direction is greater than the standard length of the plate to be detected along the second direction. At this time, the value of K2 is small, and the second clamp is If the moving distance of the second clamp from the initial position along the second direction is small, it means that the actual length of the board to be tested along the second direction is large, which does not meet the standard length range of the board to be tested along the second direction. Therefore, the board to be tested is unqualified, and the control component sends out an alarm and controls the second clamp to stop moving. If S2-2×K2-h<0, the actual length of the board to be tested along the second direction is less than the standard length of the board to be tested along the second direction. At this time, the value of K2 is large, and the moving distance of the second clamp from the initial position along the second direction is large, which means that the actual length of the board to be tested along the second direction is small, which does not meet the standard length range of the board to be tested along the second direction. Therefore, the board to be tested is unqualified, and the control component sends out an alarm and controls the second clamp to stop moving.

[0054] In some embodiments, step S11 also includes: the first fixture and the second fixture move successively at an interval of t, the two first fixtures first move from the initial position along the first direction toward the direction of the board to be detected, and after t time, the two second fixtures move from the initial position along the second direction toward the direction of the board to be detected. In some embodiments, the interval t is 0.5s. It can be understood that: the present application does not make specific restrictions on whether the first fixture assembly moves first or the second fixture assembly moves first, for example: the first fixture assembly moves first, and the second fixture assembly moves later, or, the second fixture assembly moves first, and the first fixture assembly moves later.

[0055] In an embodiment of the present invention, a frame, two first fixture assemblies, two first sensors and a control assembly are provided. Among them, the frame is provided with a detection platform, a detection area is provided on the detection platform, the board to be detected is located in the detection area, two first fixture assemblies are provided on the detection platform, the two first fixture assemblies are arranged oppositely and spaced apart along a first direction, the first fixture assembly includes a first fixture, the first fixture can move relative to the detection platform along the first direction, the two first fixtures can approach each other or move away from each other along the first direction, the two first fixtures move synchronously, the detection area is located between the two first fixtures, a first sensor is provided on a first fixture, the first sensor can move with the first fixture moving along the first direction, the first sensor has the same initial position as the first fixture, the first sensor is used to detect both sides of the board to be detected along the first direction, and the control assembly is provided. The control component is electrically connected to the first fixture component and the first sensor, the initial spacing distance between the two first fixtures along the first direction is S1, the standard width of the board to be detected along the first direction is W, when the two first sensors detect the board to be detected at the same time, the movement distance of the first fixture from the initial position along the first direction is K1, and the detection tolerance range of the first sensor along the first direction is d1, when S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component issues an alarm and controls the first fixture to stop moving, when 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm, with this setting, the user can input the standard width W of the board to be detected along the first direction into the control component, and Control the two first clamps to move along the first direction, and use the first sensor located on the first clamp to detect the board to be detected. When 0≤S1-2×K1-W≤2×d1, the actual width of the board to be detected along the first direction is within the standard width range of the board to be detected along the first direction. At this time, the width size of the board to be detected along the first direction is qualified, and the control component does not issue an alarm. When S1-2×K1-W>2×d1, it means that the actual width of the board to be detected along the first direction is greater than the standard width of the board to be detected along the first direction. At this time, the value of K1 is small, and the moving distance of the first clamp from the initial position along the first direction is small, which means that the actual width of the board to be detected along the first direction is large and does not meet the standard width of the board to be detected along the first direction. The standard width range in one direction, so the board to be tested is unqualified, the control component sends out an alarm and controls the first clamp to stop moving. When S1-2×K1-W<0, it means that the actual width of the board to be tested along the first direction is less than the standard width of the board to be tested along the first direction. At this time, the value of K1 is large, and the first clamp moves a long distance along the first direction from the initial position, indicating that the actual width of the board to be tested along the first direction is small and does not meet the standard width range of the board to be tested along the first direction. Therefore, the board to be tested is unqualified, the control component sends out an alarm and controls the first clamp to stop moving. The user can replace or remove the board to be tested according to the alarm sent by the control component, thereby reducing the occurrence of large size of the board to be tested.The first fixture can reduce the damage to the board to be tested when it moves in a fixed displacement, or reduce the situation where the first fixture cannot be clamped due to the small size of the board to be tested, thereby improving the printing efficiency.

[0056] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A detection device, characterized in that: include: The frame is provided with a detection platform, the detection platform is provided with a detection area, and the board to be detected is located in the detection area; Two first fixture assemblies are arranged on the detection platform, the two first fixture assemblies are arranged opposite to each other and spaced apart along a first direction, the first fixture assembly includes a first fixture, the first fixture can move relative to the detection platform along the first direction, the two first fixtures can approach each other or move away from each other along the first direction, the two first fixtures move synchronously, and the detection area is located between the two first fixtures; Two first sensors, one of the first sensors is disposed on the first fixture, the first sensor can move along the first direction as the first fixture moves, the first sensor and the first fixture have the same initial position, and the first sensor is used to detect both sides of the plate to be detected along the first direction; A control component connected to the first fixture component and the first sensor; Among them, the initial spacing distance between the two first clamps along the first direction is S1, the standard width of the plate to be detected along the first direction is W, when the two first sensors detect the plate to be detected at the same time, the movement distance of the first clamp from the initial position along the first direction is K1, and the detection tolerance range of the first sensor along the first direction is d1. When S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component issues an alarm and controls the first clamp to stop moving. When 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm.

2. The detection device according to claim 1, characterized in that: The detection device comprises two second fixture assemblies, which are arranged on the detection platform, the two second fixture assemblies are arranged opposite to each other and spaced apart along a second direction, the second fixture assembly is electrically connected to the control assembly, the second fixture assembly comprises a second fixture, the second fixture can move along the second direction relative to the detection platform, the two second fixtures can approach each other or move away from each other along the second direction, the two second fixtures move synchronously, the detection area is located between the two second fixtures, and the second direction is perpendicular to the first direction; The detection device further includes two second sensors, one of the second sensors is disposed on the second fixture, the second sensor is electrically connected to the control component, the second sensor can move along the second direction as the second fixture moves, the second sensor has the same initial position as the second fixture, and the second sensor is used to detect both sides of the board to be detected along the second direction; Among them, the initial spacing distance between the two second clamps along the second direction is S2, the standard length of the plate to be detected along the second direction is h, when the two second sensors detect the plate to be detected at the same time, the movement distance of the second clamp from the initial position along the second direction is K2, and the detection tolerance range of the second sensor along the second direction is d2, when S2-2×K2-h>2×d2 or S2-2×K2-h<0, the control component issues an alarm and controls the second clamp to stop moving, and when 0≤S2-2×K2-h≤2×d2, the control component does not issue an alarm.

3. The detection device according to claim 2, characterized in that: When S1-2×K1-W>2×d1, the actual width of the board to be inspected along the first direction is greater than the standard width of the board to be inspected along the first direction; When S1-2×K1-W<0, the actual width of the board to be inspected along the first direction is smaller than the standard width of the board to be inspected along the first direction; When 0≤S1-2×K1-W≤2×d1, the actual width of the board to be inspected along the first direction is within the standard width range of the board to be inspected along the first direction.

4. The detection device according to claim 2, characterized in that: When S2-2×K2-h>2×d2, the actual length of the board to be tested along the second direction is greater than the standard length of the board to be tested along the second direction; When S2-2×K2-h<0, the actual length of the plate to be tested along the second direction is less than the standard length of the plate to be tested along the second direction; When 0≤S2-2×K2-h≤2×d2, the actual length of the board to be inspected along the second direction is within the standard length range of the board to be inspected along the second direction.

5. The detection device according to claim 2, characterized in that: The detection tolerance range d1 of the first sensor along the first direction is a positive deviation of 0.5 cm or a negative deviation of 0.5 cm, and the detection tolerance range d2 of the second sensor along the second direction is a positive deviation of 0.5 cm or a negative deviation of 0.5 cm.

6. The detection device according to claim 2, characterized in that: The first sensor and the second sensor are both optical fiber sensors, and the detection light of the first sensor and the second sensor are both emitted toward the board to be detected in a vertical direction.

7. A detection method using the detection device according to any one of claims 2 to 6, characterized in that: The steps include: S11: defining a detection tolerance range of the first sensor along the first direction as d1, and defining a detection tolerance range of the second sensor along the second direction as d2; S12: measuring the initial spacing distance S1 of the two first clamps along the first direction, measuring the initial spacing distance S2 of the two second clamps along the second direction, inputting the standard width W of the board to be tested along the first direction into the control component, inputting the standard length h of the board to be tested along the second direction into the control component, the two first clamps first move from their initial positions along the first direction toward the board to be tested, and the two second clamps move from their initial positions along the second direction toward the board to be tested; S13: when the two first sensors located on the two first fixtures detect the board to be detected at the same time, measure the moving distance K1 of the first fixture from the initial position along the first direction; when the two second sensors located on the two second fixtures detect the board to be detected at the same time, measure the moving distance K2 of the second fixture from the initial position along the second direction; S14: Determine the size between the actual width of the board to be tested along the first direction and the standard width of the board to be tested along the first direction, and determine the size between the actual length of the board to be tested along the second direction and the standard length of the board to be tested along the second direction.

8. The detection method according to claim 7, characterized in that: Step S14 also includes: If S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control component will sound an alarm; If 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm.

9. The detection method according to claim 7, characterized in that: Step S14 also includes: If S2-2×K2-h>2×d2 or S2-2×K2-h<0, the control component will sound an alarm; If 0≤S2-2×K2-h≤2×d2, the control component does not issue an alarm.

10. The detection method according to claim 7, characterized in that: Step S11 also includes: The first clamp and the second clamp move successively with an interval time of t. The two first clamps first move from an initial position along the first direction toward the board to be tested. After t time, the two second clamps move from an initial position along the second direction toward the board to be tested.

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