Detection tool and method for electronic book frame opening detection

Abstract

The present application relates to the technical field of testing tools, and specifically discloses a testing tool for electronic book frame opening detection, which can complete global detection at one time, is suitable for equal-width and non-equal-width frame openings, and improves the efficiency of the inner width detection of the electronic book frame opening, and comprises a shell, a sensing system and a detection assembly. A plurality of limiting grooves penetrating through one side of the shell are arranged in the inner cavity of the shell along the length direction of the shell, and a power supply is arranged in the shell. The sensing system comprises a plurality of sensing assemblies arranged in the limiting grooves in a parallel mode, and each sensing assembly comprises a contact sensor and an alarm lamp. The detection assembly comprises a plurality of tongues, each tongue comprising a contact, a first piston, an angle limiter, a second piston, a standard thickness gauge and a spring sleeved on the first piston, the contact, the first piston and the angle limiter being arranged in the limiting groove, and the standard thickness gauge being arranged outside the jack and fixedly connected with one end of the second piston outside the limiting groove. A method for electronic book frame opening detection is also disclosed.

Description

Technical Field

[0001] This invention relates to the field of inspection tools, and in particular to an inspection tool and method for detecting openings in the borders of e-books. Background Technology

[0002] An e-book is a handheld reader that integrates storage and display, containing or downloading digital text, images, audio, and video content. Compared to traditional paper books, e-books offer advantages such as larger storage capacity, lighter weight, and portability. Users can also update the e-book to add or change text content, reducing reading costs. To make e-books resemble physical books, borders are often added to their sides. The connection between the border and the e-book body requires high precision to ensure stability. Since the inner wall of the border is generally thin and prone to deformation (typically a reduction in width under pressure), controlling the opening width of the border is crucial for its quality control. In the process of processing the border of an e-book, it is necessary to inspect the width of the border opening. Currently, this is mainly done by defining the positions to be inspected and then using standard blocks for inspection. Since the border is generally long and there are many points to be inspected, the efficiency of using standard blocks to inspect one by one is not high, which restricts the processing efficiency of the border. In addition, when the opening width of the border is not uniform, the standard block needs to be replaced during the measurement process, which further reduces the inspection efficiency of the border. Summary of the Invention

[0003] Based on this, it is necessary to address the technical problem of low border detection efficiency caused by using standard blocks for one-by-one detection and the need to replace standard blocks when the opening width is not uniform. This invention provides a fixture and method for detecting the opening width of the e-book border. The fixture can complete the full-area detection in one go and is applicable to both borders with equal opening width and borders with non-equal opening width, thereby improving the detection efficiency of the inner width of the e-book border opening.

[0004] A fixture for detecting openings in the border of an e-book, comprising:

[0005] The housing has multiple limiting grooves spaced apart along its length, and one side of the housing has a socket that corresponds to and communicates with each of the multiple limiting grooves. The housing also has a power supply inside its cavity.

[0006] The sensing system includes multiple sensing components arranged in parallel within the limiting groove, each sensing component including a contact sensor connected in series and an alarm light. Each alarm light is connected to a power supply, and the alarm light passes through the housing, with its light-emitting end located outside the housing.

[0007] The detection assembly includes multiple tongues that are inserted into each socket and cooperate with a contact sensor. Each tongue includes a contact, a first piston, an angle limiter, a second piston, and a standard thickness gauge that are fixedly connected in sequence, as well as a spring that is sleeved on the contact and the first piston and abuts against the end face of the angle limiter. The contact, the first piston, and the angle limiter are slidably disposed in a limiting groove. The standard thickness gauge is located outside the socket and is fixedly connected to one end of the second piston located outside the limiting groove.

[0008] In one embodiment, the housing includes a front cover and a rear cover that covers the front cover. The front cover and the rear cover are each T-shaped. The horizontal portion of the front cover and the horizontal portion of the rear cover together form a cuboid detection part. Each of the limiting grooves is provided in the inner cavity of the detection part. The vertical portion of the front cover and the vertical portion of the rear cover together form a handle part. The power supply is housed in the inner cavity of the handle part. Multiple notches are provided at intervals on the side of the front cover away from the handle part and the side of the rear cover away from the handle part. The notches on the front cover and the notches on the rear cover correspond one-to-one and together form the multiple insertion holes provided on the housing.

[0009] In one embodiment, the limiting groove includes a sliding groove adjacent to the socket and a sensing groove away from the socket and communicating with the sliding groove. The sensing groove is a square groove. The sliding groove includes a contact groove, a spring groove, a rotation adjustment groove, and a piston insertion groove that are sequentially arranged and communicated from the sensing groove toward the socket. The widths of the contact groove, the spring groove, and the rotation adjustment groove increase sequentially. The width of the piston insertion groove is smaller than the width of the rotation adjustment groove. The angle limiter is housed in the rotation adjustment groove. One end of the spring abuts against the end face of the rotation adjustment groove, and the other end of the spring abuts against the connection between the spring groove and the contact groove.

[0010] In one embodiment, the contact sensor has contacts corresponding to contact slots; the fixture for detecting openings in the e-book frame also includes a horn electrically connected to the power supply and each alarm light.

[0011] In one embodiment, the front cover has multiple through holes for each alarm light to pass through; the power source is a rechargeable battery, and a charging interface that is electrically connected to the power source is provided on the side of the detection unit adjacent to the handle or on the handle.

[0012] In one embodiment, when the standard thickness gauge is subjected to an external deflection force, it drives the contact, the first piston, and the angle limiter to rotate within a predetermined angle range in the limiting groove.

[0013] In one embodiment, the width of the middle part of the angle limiter is greater than the width of its two sides, the height of the rotation adjustment groove is equal to the width of the middle part of the angle limiter, and the rotation angle range of the angle limiter is + / - 2 degrees.

[0014] In one embodiment, a chamfer is provided on the end of the standard thickness gauge facing away from the second piston, and multiple marking lines are provided at intervals on the surface of the standard thickness gauge in the direction close to the second piston.

[0015] This invention also discloses a method for detecting openings in the border of an e-book. This method uses the aforementioned inspection tool for detecting openings in the border of an e-book and includes the following steps:

[0016] S1: Select two sets of standard thickness gauges as the go gauge and the no-go gauge respectively. The size of the standard thickness gauge used as the go gauge is adapted to the lower limit of the opening size of the frame to be inspected, and the size of the standard thickness gauge used as the no-go gauge is adapted to the upper limit of the opening size of the frame to be inspected.

[0017] S2: Open the inspection tool with the gob gauge installed, insert the gob gauge through the opening of the frame to be inspected, and record the lighting status of the alarm light and the position of the gob gauge when the alarm light is on.

[0018] S3: Open the inspection fixture with the stop gauge installed, insert the stop gauge through the opening of the frame to be inspected, and record the lighting status of the alarm light and the position of the stop gauge when the alarm light is on.

[0019] S4: Based on the detection results of S2 and S3, determine the quality of the border opening.

[0020] In one embodiment, when all the alarm lights are off in step S2 and all the alarm lights are on in step S3, the quality of the frame opening is qualified; otherwise, the quality of the frame opening is unqualified.

[0021] The present invention discloses a fixture and method for detecting the opening of an e-book frame. The fixture has multiple tongues and sensing components that cooperate with the tongues spaced along the length of the housing. During the detection of the frame opening width, standard thickness gauges for each tongue are embedded into the frame opening, and the housing of the fixture is pushed deeper into the opening cavity. If the wall surface at the frame opening deforms, the inner width of the frame changes. When the standard thickness gauge moves to the deformed area, its inner width decreases. The standard thickness gauge encounters resistance from the deformed area and moves into a limiting groove under this resistance. A second piston drives an angle limiter to press a spring. Simultaneously, a contact sensor generates a potential change after contacting the contact, activating the connected alarm light. The operator can determine and locate the deformed area based on the position of the alarm light. Thus, a single detection can achieve a full inspection of the inner width of the frame opening, improving the efficiency of frame opening width detection. When the frame opening is not of uniform width, standard thickness gauges of different thicknesses can be set on the housing corresponding to different parts of the opening. This eliminates the need for frequent replacement of standard blocks, allowing for the detection of the inner width of non-uniform frame openings in a single inspection. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the inspection fixture in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the fixture after the front cover is removed in one embodiment of the present invention;

[0024] Figure 3 for Figure 2 A partially enlarged structural diagram of part A in the illustrated embodiment;

[0025] Figure 4 This is an exploded view of the inspection fixture in one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a sensing component in one embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the tongue structure in one embodiment of the present invention;

[0028] Figure 7 This is a cross-sectional structural diagram of the angle limiter in one embodiment of the present invention;

[0029] Figure 8 This is a circuit diagram of a gauge in one embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of the gauge when detecting a non-uniform width frame opening in one embodiment of the present invention;

[0031] Figure 10 This is a comparison diagram of tongues with multiple different standard thickness gauges in one embodiment of the present invention. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Traditional methods of using standard blocks to individually inspect the inner width of frame openings are not only inefficient, but also problematic. When the inner surface of the frame opening is deformed, operators must push the standard block to detect the deformation. Since each person's force and judgment of the difficulty of moving the standard block differ, this can easily lead to different results for the same frame from different inspectors, reducing the reliability of the frame opening inner width inspection. To address this, this invention discloses a fixture 10 for inspecting e-book frame openings. This fixture can complete the entire area inspection in one go and is suitable for both frames with equal-width openings and frames with unequal-width openings. For details, please refer to... Figure 1 and Figure 2 The inspection fixture in this embodiment includes a housing 100, a sensing system housed within the housing 100, and a detection component mounted on the housing 100 and slidable relative to the housing 100. The detection component is used to contact the part to be detected in the opening of the frame when performing the detection operation on the inner width of the opening of the e-book frame, and to generate displacement under the action of the part to be detected when the part to be detected is deformed, so as to trigger the response of the sensing system.

[0034] Please combine Figure 1-6The inner cavity of the housing 100 is provided with a plurality of limiting grooves 110 spaced apart along the length of the housing 100. One side of the housing 100 is provided with a socket 120 that corresponds to and communicates with the plurality of limiting grooves 110. That is, each limiting groove 110 is connected to a corresponding socket 120. The inner cavity of the housing 100 is provided with a power supply 130, which is used to provide operating voltage for the sensing system. The sensing system includes a plurality of sensing components 200 that are arranged in parallel in the limiting grooves 110, that is, one sensing component 200 is arranged in each limiting groove 110. Each sensing component 200 includes a contact sensor 210 and an alarm light 220 connected in series. Each alarm light 220 is connected to the power supply 130. The alarm light 220 passes through the housing 100, and the light-emitting end of the alarm light 220 is located on the outside of the housing 100. Thus, whenever any set of sensing components 200 detects deformation of the opening wall, the alarm light 220 on that sensing component 200 will light up to alert the operator. The detection assembly includes multiple tongues 300 that are inserted into each socket 120 and cooperate with the contact sensor 210. Each tongue 300 passes through a socket 120 and cooperates with the corresponding limiting groove 110 and the sensing component 200 in the limiting groove 110. Each tongue 300 includes a contact 310, a first piston 320, an angle limiter 330, a second piston 340 and a standard thickness gauge 350 that are fixedly connected in sequence, and a spring 360 that is sleeved on the contact 310 and the first piston 320 and abuts against the end face of the angle limiter 330. The contact 310, the first piston 320 and the angle limiter 330 are slidably disposed in the limiting groove 110. The standard thickness gauge 350 is located outside the socket 120 and is fixedly connected to one end of the second piston 340 located outside the limiting groove 110. In this embodiment, a chamfered portion 351 is provided on the end of the standard thickness gauge 350 facing away from the second piston 340. This chamfered portion 351 is used to reduce the resistance when the standard thickness gauge 350 is inserted into the opening of the frame to be tested, so that the standard thickness gauge 350 can enter the workpiece more smoothly. The standard thickness gauge 350 is used as a measuring tool for measuring the inner width of the workpiece. Multiple marking lines 352 are provided at intervals on the surface of the standard thickness gauge 350 along the direction close to the second piston 340. These marking lines 352 serve as the standard for the insertion depth of the standard thickness gauge 350 during measurement. The end of each marking line 352 is written with a number indicating the insertion depth of the standard thickness gauge 350. In this way, the operator can determine the insertion depth of the standard thickness gauge 350 based on the number at the end of the marking line 352.

[0035] During the processing of the e-book frame workpiece, the design width of the frame opening is fixed. However, there is a risk that the opening may narrow due to external forces during subsequent processing. Therefore, during inspection, it is only necessary to check whether the opening width is sufficient to detect the quality of the frame opening. The aforementioned inspection fixture 10 for detecting the e-book frame opening has multiple tongues 300 and sensing components 200 that cooperate with the tongues 300 at intervals along the length of the housing 100. During the inspection process, if the frame workpiece has a local opening that is deformed or the width is less than the target value, the standard thickness gauge 350 on the tongue 300 will not be able to be completely inserted into the opening of the frame workpiece. As the housing 100 continues to advance, the contact 310 on the tongue 300 will trigger the corresponding sensing component 200 to issue an alarm signal, thereby alerting the operator to the specific location where the inner width of the frame workpiece exceeds the standard. The operator can mark the workpiece to provide important information for rework and re-inspection.

[0036] The housing 100 is used to encapsulate the sensing system and provide mounting positions for the detection components. In this embodiment, the housing 100 has an overall T-shaped structure. The housing 100 includes a front cover 140 and a rear cover 150 that covers the front cover 140. The front cover 140 and the rear cover 150 are respectively T-shaped, and the shape of the front cover 140 is adapted to the shape of the rear cover 150. The two are symmetrical to each other. The front cover 140 and the rear cover 150 are connected by snap-fit ​​or / and screws. The horizontal portions of the front cover 140 and the rear cover 150 together form a cuboid detection section 160. Each limiting groove 110 is located within the inner cavity of the detection section 160. The vertical portions of the front cover 140 and the rear cover 150 together form a handle section 170. The power supply 130 is housed within the inner cavity of the handle section 170. Multiple notches are spaced apart on the side of the front cover 140 away from the handle section 170 and on the side of the rear cover 150 away from the handle section 170, respectively. The notches on the front cover 140 correspond one-to-one with the notches on the rear cover 150, and together they form multiple insertion holes 120 on the housing 100. The handle section 170 provides a gripping area for detecting the inner width of the frame opening, facilitating the handling of the inspection tool by the operator. By placing the power supply 130 inside the handle portion 170, the problem of excessive torque at the connection between the inspection portion 160 and the handle portion 170 is avoided when the weight of the fixture is concentrated in the inspection portion 160, which helps to extend the service life of the fixture. In addition, it also avoids the problem of increasing the design width of the inspection portion 160 due to the power supply 130 being placed in the inspection portion 160, which would otherwise require more material during fixture processing. This achieves structural optimization of the fixture and reduces its production cost.

[0037] Please combine Figure 2-4The limiting groove 110 includes a sliding groove adjacent to the socket 120 and a sensing groove 111 away from the socket 120 and communicating with the sliding groove. The shape of the sensing groove 111 is adapted to the shape of the contact sensor 210. Preferably, the sensing groove 111 is a square groove. The sliding groove includes a contact groove 112, a spring groove 113, a rotation adjustment groove 114, and a piston insertion groove 115, which are sequentially arranged and connected from the sensing groove 111 toward the insertion hole 120. The widths of the contact groove 112, the spring groove 113, and the rotation adjustment groove 114 increase sequentially. The width of the piston insertion groove 115 is smaller than the width of the rotation adjustment groove 114. After the tongue 300 is inserted into the limiting groove 110, the contact 310 is located in the contact groove 112. The first piston 320 slides between the spring groove 113 and the rotation adjustment groove 114. The angle limiter 330 is housed in the rotation adjustment groove 114. One end of the spring 360 abuts against the end face of the rotation adjustment groove 114, and the other end of the spring 360 abuts against the connection between the spring groove 113 and the contact groove 112. Thus, during the detection of the inner width of the e-book frame opening, when the standard thickness gauge 350 moves to the deformed part where the inner width has decreased due to compression deformation, as the housing 100 pushes towards the bottom of the opening, the standard thickness gauge 350, which is in contact with the deformed part, will move towards the limiting groove 110 due to the resistance of the deformed part. At the same time, the standard thickness gauge 350 will drive the second piston 340, the angle limiter 330, the first piston 320, and the contact 310 to move towards the contact sensor 210. During this process, the spring 360 is compressed. When the contact 310 contacts the contact sensor 210, the potential of the contact sensor 210 changes, and the alarm light 220 is lit. The operator can determine and mark the position of the deformed part based on the position of the tongue 300 corresponding to the lit alarm light 220 and the depth of the tongue 300 inserted into the opening, so as to provide a basis for subsequent frame reshaping and re-inspection. After the width of the opening is measured, each standard thickness gauge 350 is removed from the opening. When the constraint on the standard thickness gauge 350 is released, the spring 360 drives the contact 310, the first piston 320, the angle limiter 330, the second piston 340, and the standard thickness gauge 350 to reset. In this embodiment, the safe pressure range of the spring 360 is less than 20N. In other embodiments, the appropriate specification of the spring 360 can be selected according to the extension stroke and size of the tongue 300.

[0038] Please see Figure 1The front cover 140 has multiple through holes 141 for correspondingly passing through each alarm light 220. The through holes 141 provide lighting windows for the alarm lights 220, allowing operators to observe the lighting status of each alarm light 220. It should be noted that in other embodiments, the front cover 140 and the rear cover 150 can also be designed as transparent structures, for example, by injection molding transparent PC, PE, or other materials to obtain the front cover 140 and the rear cover 150. In this way, there is no need to open through holes on the front cover 140, and operators can observe the lighting status inside the housing 100 through the front cover 140.

[0039] In this embodiment, the contact sensor 210 is a pressure sensor; however, it can also be any other type of small contact sensor 210. Please refer to... Figure 2 , Figure 3 , Figure 5 as well as Figure 8 The contact sensor 210 has contacts 211 corresponding to the contact groove 112. When the contact 310 contacts the contact 211 on the contact sensor 210, the potential at the contact 211 changes, and an electrical signal is sent to the alarm light 220, causing the corresponding alarm light 220 to light up. In other embodiments, the contact sensor 210 can be replaced with two wiring contacts that are respectively connected to the alarm light 220 and the power supply 130, and the contact 310 can be made of a metal material with good conductivity such as copper or aluminum. In this way, when the contact 310 contacts the two wiring contacts respectively, the alarm light 220 is connected to the power supply 130, so that the alarm light 220 lights up, and the contact 310 is used as a switch to trigger the contact sensor 210.

[0040] Please combine again Figure 2 and Figure 8The inspection tool in this embodiment also includes a horn 400 electrically connected to the power supply 130 and each alarm light 220. The horn 400 is connected in series on the main line of the sensing system circuit. Preferably, the horn 400 is a buzzer. By providing the horn 400, when the contact sensor 210 on any sensing component 200 contacts the contact 310, the circuit of the alarm light 220, the horn 400, and the power supply 130 is connected, and the horn 400 will emit a sound to alert the operator that a deformed part has been detected. Further, in one embodiment, the power supply 130 is a rechargeable battery, and a charging interface 180 electrically connected to the power supply 130 is provided on the side of the detection unit 160 adjacent to the handle 170 or on the handle 170. In this embodiment, the horn 400 is disposed on the handle portion 170, and the charging interface 180 is disposed on the edge of the detection portion 160 and adjacent to the power supply 130. The edge of the detection portion 160 is also provided with a horn driver chip 410 electrically connected to each alarm light 220. This horn driver chip 410 is electrically connected to the horn 400 and is used to drive and control the content played by the horn 400. It should be further noted that the front cover and rear cover 150 are also provided with wire grooves 190 respectively connecting to each limiting groove, for embedding and fixing the wires connecting the alarm lights 220 and the horn driver chip 410.

[0041] It should be noted that in this embodiment, the standard thickness gauge 350 can also rotate relative to the housing 100. Specifically, when the standard thickness gauge 350 is subjected to an external deflection force, the standard thickness gauge 350 will drive the contact 310, the first piston 320, and the angle limiter 330 to rotate within a predetermined angle range in the limiting groove 110. During the rotation of the standard thickness gauge 350 and other components, the second piston 340 serves as the axis of rotation for the entire tongue 300 and is also one of the main components for the sliding of the tongue 300 relative to the housing 100. The angle limiter 330 is used to limit the rotation angle of the tongue 300, primarily to accommodate potential deformation of the workpiece being measured. Specifically, when the standard thickness gauge 350 moves to the deformed area and the alarm light 220 responds, if further internal width detection of the opening is required, the housing 100 can be pushed further, causing the standard thickness gauge 350 to move closer to the bottom of the opening. During this process, the standard thickness gauge 350 experiences resistance from the deformed area and will slightly deflect while sliding. By setting the angle limiter 330, the maximum deflection range of the standard thickness gauge 350 is limited to avoid damage to the edge workpiece caused by excessive deflection angle. Further details can be found in the following sections. Figure 7The width of the middle section of the angle limiter 330 is greater than the width of its two sides, forming an inclined section between the middle and the two sides of the angle limiter 330. The height of the rotation adjustment groove is equal to the width of the middle section of the angle limiter 330, and the rotation angle range of the angle limiter 330 is + / - 2 degrees. In other words, when the standard thickness gauge rotates slightly, the angle limiter 330 deflects relative to the top and bottom surfaces of the rotation adjustment groove under the action of the second piston and the standard thickness gauge until the inclined section abuts against the top and bottom surfaces of the rotation adjustment groove, thereby restricting further deflection of the angle limiter 330 and achieving the purpose of limiting the rotation angle of the standard thickness gauge.

[0042] It should be noted that in this embodiment, the thickness of the standard thickness gauge 350 for each tongue 300 can be the same or different. When the thickness of each standard thickness gauge 350 is the same, the gauge is used to inspect e-book borders with equal inner widths in the opening. When the thickness of each standard thickness gauge 350 is different, the gauge is used to inspect e-book borders with unequal inner widths in the opening. Please refer to [link / reference]. Figure 9 , Figure 9 This illustration shows the situation when the gauge is used to inspect openings with non-uniform width borders. To accommodate the inspection of the inner width of non-uniform border openings, in this embodiment, the thickness of the standard thickness gauge 350 on each tongue 300 of the gauge, the extension and retraction process of the tongue 300, and the rotation angle of the tongue 300 are all adapted to the design dimensions of the border opening. When the opening of the border 20 is non-uniform, the thickness of each standard thickness gauge 350 is also different. Figure 9 The image shows two standard thickness gauges 350 with different thicknesses of 3.2mm and 3.3mm. In other embodiments, the thickness of the standard thickness gauges 350 for each tongue 300 can be further set according to the design dimensions of the opening of the frame to be inspected, such as... Figure 10 As shown. It should be noted that each tongue 300 can be set with the same rotation angle and extension stroke, or different rotation angles and extension strokes can be set. The thickness of the standard thickness gauge 350, the rotation angle of the tongue 300, and the extension stroke, etc., can be selected according to the actual needs of the workpiece. Depending on the structural shape of the workpiece, tongues 300 of corresponding shapes can also be designed to adapt to the inspection of workpieces with different shaped borders.

[0043] In the process of detecting the width of the frame opening, the aforementioned gauge inserts the standard thickness gauge 350 of each tongue 300 into the frame opening and pushes the housing 100 of the gauge deeper into the inner cavity of the frame opening. If the wall surface at the frame opening deforms, the inner width of the frame will change. When the standard thickness gauge 350 moves to the deformed part, its inner width decreases. The standard thickness gauge 350 is resisted by the deformed part and will move into the limiting groove 110 under the action of this resistance. The second piston drives the angle limiter 330 to press the spring 360, and at the same time, the contact sensor 2... When contacting the contact 310, a potential change is generated, which causes the connected alarm light 220 to become charged. The operator can determine and locate the deformed part based on the position of the lit alarm light 220. In this way, a full inspection of the inner width of the frame opening can be achieved in one test, which improves the efficiency of the inner width inspection of the frame opening. When the frame opening is not of equal width, standard thickness gauges 350 of different thicknesses can be set on the housing 100 for different parts of the opening. In this way, there is no need to frequently replace the standard blocks, and the inner width of the non-equal width frame opening can be inspected in one test.

[0044] This invention also discloses a method for detecting openings in the border of an e-book. This method employs any of the aforementioned inspection tools for detecting openings in the border of an e-book, and includes the following steps:

[0045] S1: Select two sets of standard thickness gauges as the go gauge and the no-go gauge respectively. The size of the standard thickness gauge used as the go gauge is adapted to the lower limit of the opening size of the frame to be inspected, and the size of the standard thickness gauge used as the no-go gauge is adapted to the upper limit of the opening size of the frame to be inspected.

[0046] S2: Open the inspection tool with the go-gauge installed, insert the go-gauge through the opening of the frame to be inspected, and record the lighting status of the alarm light and the position of the go-gauge when the alarm light is on.

[0047] S3: Open the inspection fixture with the stop gauge installed, insert the stop gauge through the opening of the frame to be inspected, and record the lighting status of the alarm light and the position of the stop gauge when the alarm light is on.

[0048] S4: Based on the detection results of S2 and S3, determine the quality of the border opening.

[0049] Preferably, the frame opening quality is qualified when all the alarm lights are off in step S2 and all the alarm lights are on in step S3; otherwise, the frame opening quality is unqualified.

[0050] Since the opening of the border to be inspected can be of equal or unequal width, a set of standard thickness gauges used as a go gauge can be multiple standard thickness gauges of the same size or multiple standard thickness gauges of different sizes; similarly, a set of standard thickness gauges used as a no-go gauge can be multiple standard thickness gauges of the same size or multiple standard thickness gauges of different sizes.

[0051] Specifically, in practical applications, two sets of standard thickness gauges need to be prepared for use in pairs. One set of standard thickness gauges represents the lower limit of the workpiece (the opening of the frame to be inspected) size and is called the go gauge; the other set represents the upper limit of the workpiece size and is called the stop gauge. The workpiece can only be judged as qualified if the go gauge passes completely and the stop gauge does not pass completely. In this embodiment, "the go gauge passes completely" means that after the gauge with the go gauge is powered on, each standard thickness gauge constituting the go gauge can be completely inserted into the frame opening and move to the bottom of the frame opening. During this process, all alarm lights do not light up, indicating that the inner width of the frame opening at each point exceeds its lower limit value. "The stop gauge does not pass completely" means that after the gauge with the stop gauge is powered on, when the ends of each standard thickness gauge constituting the stop gauge are inserted into the frame opening, all alarm lights light up simultaneously, indicating that the inner width of the frame opening at each point does not exceed its upper limit value.

[0052] When using a go gauge for inspection, if all the standard thickness gauges constituting the go gauge enter the frame opening, the inner width of the workpiece opening does not exceed the lower limit. If, during go gauge inspection, some standard thickness gauges constituting the go gauge cannot enter the frame opening, it indicates that some parts of the frame opening are too narrow and exceed the lower limit, in which case the frame opening is unqualified. If, during go gauge inspection, none of the standard thickness gauges constituting the go gauge can enter the frame opening, it indicates that the overall width of the frame opening is too narrow and exceeds the lower limit, in which case the frame opening is unqualified. When using a no-go gauge for inspection, if none of the standard thickness gauges constituting the no-go gauge can enter the frame opening, it indicates that the frame opening width does not exceed the upper limit. If, during no-go gauge inspection, some of the standard thickness gauges constituting the no-go gauge enter the frame opening, it indicates that the width of some areas of the workpiece opening is too large and exceeds the upper limit, in which case the frame opening is unqualified. If, during no-go gauge inspection, all the standard thickness gauges constituting the no-go gauge enter the frame opening, it indicates that the overall width of the frame opening is too large and exceeds the upper limit, in which case the frame opening is unqualified. When the opening of the frame to be inspected is of equal width, the fixture is equipped with a standard thickness gauge of the same thickness; when the opening of the frame to be inspected is of unequal width, the fixture needs to be equipped with a standard thickness gauge of different thicknesses according to the actual situation of the workpiece.

[0053] Please see Figure 9In one specific embodiment of the present invention, the e-book frame is selected as a workpiece with a non-uniform opening, with a length of 248mm and a wall thickness of 0.6mm. During the processing of the frame 20, various stresses may cause the workpiece to deform, potentially resulting in overall bending or local deformation. The wall thickness at the end of the workpiece with the small round hole differs from the others. The main opening width of the frame 20 is 3.35mm ± 0.05mm, while the opening narrows at the end near the small round hole, with a width of 3.25mm ± 0.05mm. Considering the inevitability of deformation during the processing of the frame 20, the acceptance standard is set as follows: overall deformation less than 0.5mm, and local deformation not exceeding 0.1mm within any 20mm range. The gauge tongue rotates at a small angle to accommodate acceptable local deformation of the workpiece. The inner diameter of the insertion hole 120 is 0.5mm larger than the diameter of the second piston 340 to ensure that the second piston 340 can slide smoothly relative to the insertion hole 120. The tongue 300 has a certain degree of freedom of displacement relative to the housing 100 to accommodate acceptable overall deformation of the workpiece. In this embodiment, the standard thickness gauge 350 configured for measuring the opening quality of the frame 20 is: 3.30 mm for the main body and 3.20 mm for the narrow opening; the standard thickness gauge 350 for the no-go gauge is: 3.40 mm for the main body and 3.30 mm for the narrow opening.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A gauge for detecting openings in the border of an e-book, characterized in that, include: The housing has multiple limiting grooves spaced apart along its length, and one side of the housing has a socket that corresponds to and communicates with each of the multiple limiting grooves. The housing also has a power supply inside its cavity. The sensing system includes multiple sensing components arranged in parallel within the limiting groove, each sensing component including a contact sensor connected in series and an alarm light. Each alarm light is connected to a power supply, and the alarm light passes through the housing, with its light-emitting end located outside the housing. The detection assembly includes multiple tongues that are inserted into each socket and cooperate with a contact sensor. Each tongue includes a contact, a first piston, an angle limiter, a second piston, and a standard thickness gauge that are fixedly connected in sequence, as well as a spring that is sleeved on the contact and the first piston and abuts against the end face of the angle limiter. The contact, the first piston, and the angle limiter are slidably disposed in a limiting groove. The standard thickness gauge is located outside the socket and is fixedly connected to one end of the second piston located outside the limiting groove.

2. The inspection fixture for detecting openings in the frame of an e-book according to claim 1, characterized in that, The housing includes a front cover and a rear cover that covers the front cover. The front cover and the rear cover are T-shaped structures. The horizontal part of the front cover and the horizontal part of the rear cover together form a cuboid detection part. Each of the limiting grooves is provided in the inner cavity of the detection part. The vertical part of the front cover and the vertical part of the rear cover together form a handle part. The power supply is housed in the inner cavity of the handle part. Multiple notches are provided at intervals on the side of the front cover away from the handle part and the side of the rear cover away from the handle part. The notches on the front cover and the notches on the rear cover correspond one-to-one and together form the multiple insertion holes provided on the housing.

3. The inspection fixture for detecting openings in the frame of an e-book according to claim 2, characterized in that, The limiting groove includes a sliding groove adjacent to the socket and a sensing groove away from the socket and connected to the sliding groove. The sensing groove is a square groove. The sliding groove includes a contact groove, a spring groove, a rotation adjustment groove, and a piston insertion groove arranged sequentially and connected from the sensing groove toward the socket. The widths of the contact groove, spring groove, and rotation adjustment groove increase sequentially. The width of the piston insertion groove is smaller than the width of the rotation adjustment groove. The angle limiter is housed in the rotation adjustment groove. One end of the spring abuts against the end face of the rotation adjustment groove, and the other end of the spring abuts against the connection between the spring groove and the contact groove.

4. The inspection fixture for detecting openings in the frame of an e-book according to claim 3, characterized in that, The contact sensor has contacts with corresponding contact slots; the fixture for detecting openings in the e-book frame also includes a horn electrically connected to the power supply and each alarm light.

5. The inspection fixture for detecting openings in the frame of an e-book according to claim 4, characterized in that, The front cover has multiple through holes for each alarm light to pass through; the power source is a rechargeable battery, and a charging interface that is electrically connected to the power source is provided on the side of the detection unit adjacent to the handle or on the handle.

6. The inspection fixture for detecting openings in the frame of an e-book according to claim 5, characterized in that, When the standard thickness gauge is subjected to an external deflection force, it drives the contact, the first piston, and the angle limiter to rotate within a predetermined angle range in the limiting groove.

7. The inspection fixture for detecting openings in the frame of an e-book according to claim 6, characterized in that, The width of the middle part of the angle limiter is greater than the width of its two sides, the height of the rotation adjustment groove is equal to the width of the middle part of the angle limiter, and the rotation angle range of the angle limiter is + / - 2 degrees.

8. The inspection fixture for detecting openings in the frame of an e-book according to claim 7, characterized in that, The end of the standard thickness gauge facing away from the second piston is provided with a chamfer, and multiple marking lines are provided at intervals on the surface of the standard thickness gauge along the direction close to the second piston.

9. A method for detecting openings in the border of an e-book, employing the inspection fixture for detecting openings in the border of an e-book as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: Select two sets of standard thickness gauges as the go gauge and the no-go gauge respectively. The size of the standard thickness gauge used as the go gauge is adapted to the lower limit of the opening size of the frame to be inspected, and the size of the standard thickness gauge used as the no-go gauge is adapted to the upper limit of the opening size of the frame to be inspected. S2: Open the inspection tool with the gob gauge installed, insert the gob gauge through the opening of the frame to be inspected, and record the lighting status of the alarm light and the position of the gob gauge when the alarm light is on. S3: Open the inspection fixture with the stop gauge installed, insert the stop gauge through the opening of the frame to be inspected, and record the lighting status of the alarm light and the position of the stop gauge when the alarm light is on. S4: Based on the detection results of S2 and S3, determine the quality of the border opening.

10. The method for detecting openings in the border of an e-book according to claim 9, characterized in that, When all the alarm lights are off in step S2 and all the alarm lights are on in step S3, the quality of the frame opening is qualified; otherwise, the quality of the frame opening is unqualified.

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