A detection device and a detection method

Abstract

The embodiment of the present application relates to the technical field of printing equipment, and discloses a detection device and a detection method, which comprise a rack, a detection platform is arranged on the rack, and a detection area is arranged on the detection platform; two first clamp assemblies are arranged on the detection platform, the two first clamp assemblies are arranged in a first direction and are spaced apart, the first clamp assembly comprises a first clamp, the first clamp is movable along the first direction relative to the detection platform, the two first clamps move synchronously, and the detection area is located between the two first clamps; two first sensors are arranged on the first clamps, the first sensor is movable along the first direction with the first clamp, the initial positions of the first sensor and the first clamp are the same, and a control assembly is electrically connected with the first clamp assembly and the first sensor. Through the above mode, whether the actual width of the to-be-detected plate along the first direction conforms to the standard width can be detected.

Description

TECHNICAL FIELD

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

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

[0003] At present, some inkjet printing equipment on the market includes a rack, a feeding module, a printing platform, a material transferring module and an inkjet printing module. In the printing process, the printing substrate is stacked on the feeding module by manual or external mechanism, the feeding module transports the printing substrate to a set position, the printing platform moves to the lower side of the printing substrate, the material transferring module grabs the printing substrate to the printing platform, the clamp on the printing platform clamps the printing substrate, then the printing platform drives the printing substrate to move to the printing station, so that the inkjet printing module can print. Among them, the clamps of the same type of printing substrate often adopt fixed displacement clamping.

[0004] The inventor of the present application found that in the actual production process, the size of the same type of printing substrate inevitably has differences, when the size of the printing substrate is small, the clamp cannot realize clamping, when the size of the printing substrate is large, the clamp is easy to cause damage or breakage of the printing substrate when moving at a fixed displacement, thereby affecting the printing efficiency, which is inconvenient. SUMMARY

[0005] In view of the above problems, the embodiments of the present application 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 application, a detection device is provided, comprising a frame, a detection platform is arranged on the frame, a detection area is arranged on the detection platform, and a to-be-detected board is located in the detection area; two first clamp assemblies are arranged on the detection platform, the two first clamp assemblies are oppositely and spacedly arranged along a first direction, the first clamp assembly comprises a first clamp, the first clamp is movable relative to the detection platform along the first direction, the two first clamps are movable towards or away from each other along the first direction, the two first clamps are synchronously movable, and the detection area is located between the two first clamps; two first sensors are arranged on the two first clamps respectively, the first sensor is movable with the first clamp along the first direction, the initial position of the first sensor is the same as that of the first clamp, and the first sensor is used for detecting both sides of the to-be-detected board along the first direction; a control assembly is electrically connected with the first clamp assembly and the first sensor; wherein the initial interval distance of the two first clamps along the first direction is S1, the standard width of the to-be-detected board along the first direction is W, the moving distance of the first clamp from the initial position along the first direction when the two first sensors simultaneously detect the to-be-detected board 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 assembly issues an alarm and controls the first clamp to stop moving, and when 0≤S1-2×K1-W≤2×d1, the control assembly does not issue an alarm.

[0007] In an alternative mode, the detection device comprises two second clamp assemblies arranged on the detection platform, the two second clamp assemblies are arranged opposite and spaced apart along a second direction, the second clamp assemblies are electrically connected with the control assembly, the second clamp assemblies comprise second clamps, the second clamps are movable relative to the detection platform along the second direction, the two second clamps are movable towards or 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 further comprises two second sensors, one second sensor is arranged on one second clamp, the second sensor is electrically connected with the control assembly, the second sensor is movable with the second clamp along the second direction, the initial position of the second sensor is the same as that of the second clamp, and the second sensor is used for detecting both sides of the to-be-detected board along the second direction; wherein the initial interval distance of the two second clamps along the second direction is S2, the standard length of the to-be-detected board along the second direction is h, the moving distance of the second clamps along the second direction from the initial position when the two second sensors simultaneously detect the to-be-detected board is K2, 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 assembly issues an alarm and controls the second clamps to stop moving, and when 0≤S2-2×K2-h≤2×d2, the control assembly does not issue an alarm.

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

[0009] In an alternative mode, when S2-2×K2-h>2×d2, the actual length of the to-be-detected board along the second direction is greater than the standard length of the to-be-detected board along the second direction; when S2-2×K2-h<0, the actual length of the to-be-detected board along the second direction is less than the standard length of the to-be-detected board along the second direction; and when 0≤S2-2×K2-h≤2×d2, the actual length of the to-be-detected board along the second direction is within the range of the standard length of the to-be-detected board 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 both the first sensor and the second sensor is emitted vertically toward the board to be detected.

[0012] According to another aspect of the present invention, a detection method using the above-mentioned detection device is provided, 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 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: judge 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 judge 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 further 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 alternative, step S14 further comprises: 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 alternative, step S11 further comprises: the interval time between the movement of the first clamp and the second clamp is t, and the two first clamps move from the initial position to the direction of the plate to be detected along the first direction, and after t time, the two second clamps move from the initial position to the direction of the plate to be detected along the second direction.

[0016] The beneficial effects of the embodiment of the present application are: different from the prior art, the embodiment of the present application is provided with a rack, two first clamp assemblies, two first sensors and a control assembly. The rack is provided with a detection platform, the detection platform is provided with a detection area, a to-be-detected board is located in the detection area, the two first clamp assemblies are arranged on the detection platform, the two first clamp assemblies are arranged in a relative and spaced manner along a first direction, the first clamp assembly comprises a first clamp, the first clamp is movable along the first direction relative to the detection platform, the two first clamps are movable towards or 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 arranged on a first clamp, the first sensor is movable along the first direction with the first clamp, the initial position of the first sensor is the same as that of the first clamp, the first sensor is used for detecting both sides of the to-be-detected board along the first direction, the control assembly is connected with the first clamp assembly and the first sensor, the initial interval distance of the two first clamps along the first direction is S1, the standard width of the to-be-detected board along the first direction is W, when the two first sensors detect the to-be-detected board at the same time, the moving distance of the first clamp along the first direction from the initial position 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 assembly issues an alarm and controls the first clamp to stop moving, when 0≤S1-2×K1-W≤2×d1, the control assembly does not issue an alarm. In this way, the user can input the standard width W of the to-be-detected board along the first direction into the control assembly, control the two first clamps to move along the first direction, and detect the to-be-detected board by using the first sensor on the first clamp. When 0≤S1-2×K1-W≤2×d1, the actual width of the to-be-detected board along the first direction is within the range of the standard width of the to-be-detected board along the first direction, at this time, the width of the to-be-detected board along the first direction is qualified, and the control assembly does not issue an alarm. When S1-2×K1-W>2×d1, it indicates that the actual width of the to-be-detected board along the first direction is greater than the standard width of the to-be-detected board along the first direction, at this time, the value of K1 is small, the moving distance of the first clamp along the first direction from the initial position is small, which indicates that the actual width of the to-be-detected board along the first direction is large, which does not meet the standard width range of the to-be-detected board along the first direction, so the to-be-detected board is unqualified, the control assembly issues an alarm and controls the first clamp to stop moving. When S1-2×K1-W<0, it indicates that the actual width of the to-be-detected board along the first direction is less than the standard width of the to-be-detected board along the first direction, at this time, the value of K1 is large, the moving distance of the first clamp along the first direction from the initial position is large, which indicates that the actual width of the to-be-detected board along the first direction is small, which does not meet the standard width range of the to-be-detected board along the first direction, so the to-be-detected board is unqualified, the control assembly issues an alarm and controls the first clamp to stop moving. The user can replace or remove the to-be-detected board according to the alarm issued by the control assembly.Thus, the damage of the to-be-tested board caused by the first clamp moving a fixed displacement when the to-be-tested board is large in size is reduced, or the situation that the first clamp cannot clamp the to-be-tested board when the to-be-tested board is small in size is reduced, so that the printing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. 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 proportion.

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

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

[0020] Figure 3 is a schematic diagram of a flow of the detection method of the embodiment of the present application;

[0021] Figure 4 is another schematic diagram of a flow of the detection method of the embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the present application will be described in more detail below in combination with the 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 one or more intermediate elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", and similar expressions used in the specification are only for the purpose of illustration.

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

[0024] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0025] It should be noted that the to-be-detected board in the present application includes but is not limited to a PCB board, a thin plate, a metal plate, a composite material board and the like, and the present application is described by taking the application to the PCB board as an example.

[0026] In order to better describe the structure of the detection device 1000, the structure of the detection device 1000 will be described in combination with X, Y and Z axes, which 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] Please refer to Figure 1 and Figure 2 , the detection device 1000 includes a rack 10, two first clamp assemblies 20, two second clamp assemblies 30, two first sensors 40, two second sensors 50 and a control assembly. Among them, the two first clamp assemblies 20 and the two second clamp assemblies 30 are arranged on the rack 10, a first sensor 40 is arranged on a first clamp assembly 20, a second sensor 50 is arranged on a second clamp assembly 30, and the control assembly is electrically connected with the first clamp assembly 20, the second clamp assembly 30, the first sensor 40 and the second sensor 50. The rack 10, the two first clamp assemblies 20, the two second clamp assemblies 30, the two first sensors 40, the two second sensors 50 and the control assembly will be described in detail below.

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

[0029] For the above-mentioned first clamp assembly 20 and second clamp assembly 30, as shown in Figure 1 and Figure 2 , the first clamp assembly 20 and the second clamp assembly 30 are arranged on the detection platform 101, the two first clamp assemblies 20 are arranged opposite and spaced apart along the first direction X, the two second clamp assemblies 30 are arranged opposite and spaced apart along the second direction Y, the first clamp assembly 20 is used for clamping the two sides of the to-be-detected PCB along the first direction X, and the second clamp assembly 30 is used for clamping the two sides of the to-be-detected PCB along the second direction Y.

[0030] In some embodiments, the first clamp assembly 20 comprises first clamps 201 and a first moving assembly, the first moving assembly is arranged on the detection platform 101, the first clamps 201 are connected to the side of the first moving assembly away from the detection platform 101, the first clamps 201 can be moved along the first direction X relative to the detection platform 101 under the driving of the first moving assembly, the two first clamps 201 can move towards or 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 comprises a first sliding block, a second sliding block, a sliding rail, a lead screw and a motor, the sliding rail is arranged on the detection platform 101, the first sliding block and the second sliding block are both slidingly installed on the sliding rail, one of the first clamps 201 is connected to the first sliding block, and the other of the first clamps 201 is connected to the second sliding block, the lead screw is threadedly connected to the first sliding block and the second sliding block, the thread direction between the first sliding block and the lead screw is opposite to the thread direction between the second sliding block and the lead screw, the output end of the motor is in transmission connection with the lead screw, the lead screw is driven to rotate by the motor, so as to drive the first sliding block and the second sliding block to move towards or away from each other on the sliding rail, thereby realizing the movement of the two first clamps 201 towards or away from each other along the first direction X. It can be understood that, in order to realize the movement of the two first clamps 201 towards 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, for example, the matching mode of a gear and a rack.

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

[0032] In some embodiments, the second clamp assembly 30 comprises second clamps 301 and a second moving assembly, the second moving assembly is arranged on the detection platform 101, the second clamps 301 are connected to the side of the second moving assembly away from the detection platform 101, the second clamps 301 can be moved along the second direction Y relative to the detection platform 101 under the driving of the second moving assembly, the two second clamps 301 can move towards or away from each other along the second direction Y, the two second clamps 301 move synchronously, and the detection area is located between the two second clamps 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 described above, which will not be described herein.

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

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

[0035] In some embodiments, when the two first sensors 40 simultaneously detect the to-be-detected PCB, the moving distance of the first clamp 201 along the first direction X from the initial position is K1, and the two first sensors 40 are driven by the two first clamps 201 to move towards the to-be-detected PCB. During the movement, it is possible that one of the first sensors 40 detects the to-be-detected PCB first. At this time, the first clamp 201 continues to move and pushes the to-be-detected PCB to move, until the two first sensors 40 simultaneously detect the to-be-detected PCB, and the first clamp 201 stops moving. At this time, the moving distance of the first clamp 201 along the first direction X from the initial position is K1. For the specific data of K1, the user can obtain it according to the actual measurement, which is not specifically limited in the present 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 to-be-detected PCB along the first direction X is within the standard width range of the to-be-detected PCB along the first direction X, which means that the actual width tolerance range of the to-be-detected PCB along the first direction X is within the range allowed by the detection tolerance d1. At this time, the width size of the to-be-detected PCB along the first direction X is qualified, and the control assembly does not issue an alarm.

[0038] In some embodiments, when S1-2xK1-W>2xd1, the actual width of the PCB to be detected along the first direction X is greater than the standard width of the PCB to be detected along the first direction X, at this time, the value of K1 is smaller, the moving distance of the first clamp 201 along the first direction X from the initial position is smaller, which indicates that the actual width of the PCB to be detected along the first direction X is larger, which indicates that the actual width tolerance range of the PCB 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 to be detected along the first direction X, so the PCB to be detected is unqualified, and the control assembly issues an alarm and controls the first clamp 201 to stop moving.

[0039] In some embodiments, when S1-2xK1-W<0, the actual width of the PCB to be detected along the first direction X is less than the standard width of the PCB to be detected along the first direction X, at this time, the value of K1 is larger, the moving distance of the first clamp 201 along the first direction X from the initial position is larger, which indicates that the actual width of the PCB to be detected along the first direction X is smaller, which does not meet the standard width range of the PCB to be detected along the first direction X, so the PCB to be detected is unqualified, and the control assembly issues an alarm and controls the first clamp 201 to stop moving.

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

[0041] In some embodiments, when the two second sensors 50 simultaneously detect the PCB to be detected, the moving distance of the second clamp 301 along the second direction Y from the initial position is K2, and the two second sensors 50 are driven by the two second clamps 301 to move towards the direction of the PCB to be detected. During the movement, one of the second sensors 50 may first detect the PCB to be detected, at this time, the second clamp 301 continues to move and pushes the PCB to be detected to move, until the two second sensors 50 simultaneously detect the PCB to be detected, and the second clamp 301 stops moving, at this time, the moving distance of the second clamp 301 along the second direction Y from the initial position is K2. For the specific data of K2, the user can obtain it according to the actual measurement, which is not limited in the present 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 to be detected along the second direction Y is within the standard length range of the PCB to be detected along the second direction Y, indicating that the actual length tolerance range of the PCB 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 to be detected along the second direction Y is qualified, and the control assembly does not issue an alarm.

[0044] In some embodiments, when S2-2×K2-h>2×d2, the actual length of the PCB to be detected along the second direction Y is greater than the standard length of the PCB to be detected along the second direction Y, at this time, the value of K2 is smaller, the moving distance of the second clamp 301 along the second direction Y from the initial position is smaller, indicating that the actual length of the PCB to be detected along the second direction Y is larger, indicating that the actual length tolerance range of the PCB 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 to be detected along the second direction Y, so the PCB to be detected is unqualified, the control assembly 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 to be detected along the second direction Y is less than the standard length of the PCB to be detected along the second direction Y, at this time, the value of K2 is larger, the moving distance of the second clamp 301 along the second direction Y from the initial position is larger, indicating that the actual length of the PCB to be detected along the second direction Y is smaller, and does not meet the standard length range of the PCB to be detected along the second direction Y, so the PCB to be detected is unqualified, the control assembly issues an alarm and controls the second clamp 301 to stop moving.

[0046] Please refer to Figure 3 The application also provides an embodiment of a detection method applied to the above detection device, which comprises the following steps:

[0047] 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;

[0048] S12: measuring the initial interval distance S1 of the two first clamps along the first direction, measuring the initial interval 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 assembly, inputting the standard length h of the board to be detected along the second direction into the control assembly, moving the two first clamps from the initial position along the first direction towards the board to be detected, and moving the two second clamps from the initial position along the second direction towards the board to be detected;

[0049] S13: When the two first sensors on the two first clamps simultaneously detect the to-be-detected board, measure the moving distance K1 of the first clamps from the initial position along the first direction; when the two second sensors on the two second clamps simultaneously detect the to-be-detected board, measure the moving distance K2 of the second clamps from the initial position along the second direction.

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

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

[0052] In some embodiments, please refer to Figure 4 , step S14 further includes: if S1-2×K1-W>2×d1 or S1-2×K1-W<0, the control assembly issues an alarm; if 0≤S1-2×K1-W≤2×d1, the control assembly does not issue an alarm, wherein if 0≤S1-2×K1-W≤2×d1, the actual width of the to-be-detected board along the first direction is within the standard width range of the to-be-detected board along the first direction, at this time, the width size of the to-be-detected board along the first direction is qualified, the control assembly does not issue an alarm, if S1-2×K1-W>2×d1, the actual width of the to-be-detected board along the first direction is greater than the standard width of the to-be-detected board along the first direction, at this time, the value of K1 is smaller, the moving distance of the first clamp from the initial position along the first direction is smaller, indicating that the actual width of the to-be-detected board along the first direction is larger, which does not meet the standard width range of the to-be-detected board along the first direction, therefore the to-be-detected board is unqualified, the control assembly issues an alarm and controls the first clamp to stop moving, if S1-2×K1-W<0, the actual width of the to-be-detected board along the first direction is smaller than the standard width of the to-be-detected board along the first direction, at this time, the value of K1 is larger, the moving distance of the first clamp from the initial position along the first direction is larger, indicating that the actual width of the to-be-detected board along the first direction is smaller, which does not meet the standard width range of the to-be-detected board along the first direction, therefore the to-be-detected board is unqualified, the control assembly issues an alarm and controls the first clamp to stop moving.

[0053] In some embodiments, step S14 further comprises: if S2-2xK2-h>2xd2 or S2-2xK2-h<0, the control component issues an alarm; if 0≤S2-2xK2-h≤2xd2, the control component does not issue an alarm. If 0≤S2-2xK2-h≤2xd2, the actual length of the to-be-tested board in the second direction is within the standard length range of the to-be-tested board in the second direction, at this time, the length dimension of the to-be-tested board in the second direction is qualified, the control component does not issue an alarm, if S2-2xK2-h>2xd2, the actual length of the to-be-tested board in the second direction is greater than the standard length of the to-be-tested board in the second direction, at this time, the value of K2 is smaller, the moving distance of the second clamp from the initial position in the second direction is smaller, indicating that the actual length of the to-be-tested board in the second direction is larger, which does not meet the standard length range of the to-be-tested board in the second direction, therefore, the to-be-tested board is unqualified, the control component issues an alarm and controls the second clamp to stop moving, if S2-2xK2-h<0, the actual length of the to-be-tested board in the second direction is less than the standard length of the to-be-tested board in the second direction, at this time, the value of K2 is larger, the moving distance of the second clamp from the initial position in the second direction is larger, indicating that the actual length of the to-be-tested board in the second direction is smaller, which does not meet the standard length range of the to-be-tested board in the second direction, therefore, the to-be-tested board is unqualified, the control component issues an alarm and controls the second clamp to stop moving.

[0054] In some embodiments, step S11 further comprises: the interval time between the movement of the first clamp and the second clamp is t, two first clamps move from the initial position to the direction of the to-be-tested board along the first direction, after t time, two second clamps move from the initial position to the direction of the to-be-tested board along the second direction. In some embodiments, the interval time t is 0.5s. It can be understood that whether the first clamp assembly moves first or the second clamp assembly moves first is not limited in the present application, for example, the first clamp assembly moves first and the second clamp assembly moves second, or the second clamp assembly moves first and the first clamp assembly moves second.

[0055] In the embodiment of the present application, a rack, two first clamp assemblies, two first sensors and a control assembly are arranged. The rack is provided with a detection platform, the detection platform is provided with a detection area, a to-be-detected board is located in the detection area, the two first clamp assemblies are arranged on the detection platform, the two first clamp assemblies are arranged opposite to and spaced apart from each other along a first direction, the first clamp assembly comprises a first clamp, the first clamp is movable relative to the detection platform along the first direction, the two first clamps can move close to or 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 arranged on a first clamp, the first sensor is movable along with the first clamp along the first direction, the initial position of the first sensor is the same as that of the first clamp, the first sensor is used for detecting both sides of the to-be-detected board along the first direction, the control assembly is electrically connected with the first clamp assembly and the first sensor, the initial interval distance of the two first clamps along the first direction is S1, the standard width of the to-be-detected board along the first direction is W, when the two first sensors detect the to-be-detected board at the same time, the moving 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 assembly issues an alarm and controls the first clamp to stop moving, when 0≤S1-2×K1-W≤2×d1, the control assembly does not issue an alarm. In this way, the user can input the standard width W of the to-be-detected board along the first direction into the control assembly, control the two first clamps to move along the first direction, and detect the to-be-detected board by using the first sensor on the first clamp. When 0≤S1-2×K1-W≤2×d1, the actual width of the to-be-detected board along the first direction is within the range of the standard width of the to-be-detected board along the first direction, at this time, the width size of the to-be-detected board along the first direction is qualified, and the control assembly does not issue an alarm. When S1-2×K1-W>2×d1, it indicates that the actual width of the to-be-detected board along the first direction is greater than the standard width of the to-be-detected board along the first direction, at this time, the value of K1 is small, the moving distance of the first clamp from the initial position along the first direction is small, it indicates that the actual width of the to-be-detected board along the first direction is large, which does not meet the standard width range of the to-be-detected board along the first direction, therefore, the to-be-detected board is unqualified, the control assembly issues an alarm and controls the first clamp to stop moving. When S1-2×K1-W<0, it indicates that the actual width of the to-be-detected board along the first direction is smaller than the standard width of the to-be-detected board along the first direction, at this time, the value of K1 is large, the moving distance of the first clamp from the initial position along the first direction is large, it indicates that the actual width of the to-be-detected board along the first direction is small, which does not meet the standard width range of the to-be-detected board along the first direction, therefore, the to-be-detected board is unqualified, the control assembly issues an alarm and controls the first clamp to stop moving. The user can replace or remove the to-be-detected board according to the alarm issued by the control assembly, thereby reducing the situation that the to-be-detected board is too large,The first clamp is fixedly displaced to cause damage to the to-be-detected board, or to reduce the situation that the first clamp cannot clamp due to the small size of the to-be-detected board, thereby improving the printing efficiency.

[0056] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

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 disposed 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 assemblies include a first fixture, the first fixture is movable relative to the detection platform along the first direction, the two first fixtures are movable toward each other or 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 as the first fixture moves along the first direction, 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 assembly connected to the first fixture assembly and the first sensor; The initial spacing between the two first clamps along the first direction is S1, the standard width of the plate to be inspected along the first direction is W, when the two first sensors simultaneously detect the plate to be inspected, the movement distance of the first clamps along the first direction from the initial position is K1, and the detection tolerance range of the first sensors 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 clamps to stop moving. When 0≤S1-2×K1-W≤2×d1, the control component does not issue an alarm. The detection device includes two second fixture assemblies, which are disposed 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 assemblies are electrically connected to the control assembly. The second fixture assembly includes a second fixture. The second fixture is movable along the second direction relative to the detection platform. The two second fixtures can approach 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. The second direction is perpendicular to the first direction. The detection device further includes two second sensors, one of the second sensors being disposed on the second fixture, the second sensor being electrically connected to the control assembly, the second sensor being movable as the second fixture moves in the second direction, the second sensor and the second fixture having the same initial position, and the second sensor being configured to detect both sides of the plate to be detected in the second direction; In which, 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. When 0≤S2-2×K2-h≤2×d2, the control component does not issue an alarm.

2. The detection device according to claim 1, 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.

3. The detection device according to claim 1, characterized in that When S2-2×K2-h>2×d2, the actual length of the board to be inspected along the second direction is greater than the standard length of the board to be inspected along the second direction; When S2-2×K2-h<0, the actual length of the plate to be inspected along the second direction is less than the standard length of the plate to be inspected 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.

4. The detection device according to claim 1, 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.

5. The detection device according to claim 1, 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 plate to be detected in a vertical direction.

6. A detection method using the detection device according to any one of claims 1 to 5, 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: Measure the initial spacing S1 between the two first fixtures along the first direction, measure the initial spacing S2 between the two second fixtures along the second direction, input the standard width W of the board to be inspected along the first direction into the control component, input the standard length h of the board to be inspected along the second direction into the control component, and move the two first fixtures from their initial positions along the first direction toward the board to be inspected, and then move the two second fixtures from their initial positions along the second direction toward the board to be inspected; S13: When the two first sensors located on the two first fixtures simultaneously detect the board to be inspected, measure the movement 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 simultaneously detect the board to be inspected, measure the movement 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.

7. The detection method according to claim 6, characterized in that 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.

8. The detection method according to claim 6, characterized in that 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.

9. The detection method according to claim 6, 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 their initial positions along the first direction toward the board to be tested. After t time, the two second clamps move from their initial positions along the second direction toward the board to be tested.

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