A vertical clamp for laser measurement of thickness of mobile phone back cover platform

Abstract

A kind of vertical fixture for mobile phone back cover platform thickness laser measurement, including fixture base plate, sliding positioning mechanism, product positioning plate and several support plates are installed on the fixture base plate, the product positioning plate is vertically arranged on fixture base plate, the support plate is located in the side of product positioning plate along X axis direction, and the sliding positioning mechanism is located in the side of product positioning plate along Y axis direction;The sliding positioning mechanism includes point position fixed plate, sliding table cylinder and cylinder limiting plate, the cylinder limiting plate is connected with the outer side of sliding table cylinder along X axis direction, sliding block is slidably arranged on the sliding table cylinder, the sliding block is connected with point position fixed plate, and the sliding table cylinder can drive point position fixed plate to approach product positioning plate along X axis direction.The utility model discloses through the cooperation of unique vertical design and sliding positioning mechanism, solve the problem that laser penetrates path is blocked, and can quickly, accurately measure multiple point positions of product.

Description

Technical Field

[0001] This utility model relates to the field of measuring fixture technology, specifically a vertical fixture for laser measurement of the thickness of a mobile phone back cover platform. Background Technology

[0002] In the mobile phone manufacturing industry, the platform thickness of the back cover glass is a critical quality indicator. Therefore, measuring the platform thickness of the back cover glass is a key step in ensuring product quality. High-precision measurement is typically achieved using a laser confocal microscope. This method requires the laser beam to penetrate the measured area of ​​the device vertically without obstruction.

[0003] Currently, most existing measuring fixtures are horizontal in structure, meaning the product is placed flat inside the fixture for measurement. However, for products like mobile phone back covers, the platform is usually located in a recessed area. If a horizontal fixture is used, the side walls or positioning structure of the fixture will inevitably block the laser path, making measurement impossible. Therefore, existing technologies present a contradiction between stable product clamping and unobstructed laser measurement, resulting in low measurement efficiency, cumbersome operation, and even the risk of scratching the product surface. Utility Model Content

[0004] The purpose of this invention is to provide a special vertical fixture for non-destructive measurement of the thickness of a mobile phone back cover glass platform using a laser confocal microscope. This invention aims to solve the aforementioned technical problems. Through a unique vertical design and the cooperation of a sliding positioning mechanism, this invention solves the problem of laser penetration path obstruction and can quickly and accurately perform automated measurement of multiple points on the product. Furthermore, by fixing the product through vacuum adsorption, it has good working stability.

[0005] To achieve the above objectives, this utility model employs the following technical solution: A vertical fixture for laser measurement of the thickness of a mobile phone back cover platform includes a fixture base plate, on which a sliding positioning mechanism, a product positioning plate, and several support plates are mounted. The product positioning plate is vertically disposed on the fixture base plate, the support plates are located on one side of the product positioning plate along the X-axis, and the sliding positioning mechanism is located on one side of the product positioning plate along the Y-axis. The sliding positioning mechanism includes a point fixing plate, a slide cylinder, and a cylinder limiting plate. The cylinder limiting plate is connected to one outer side of the slide cylinder along the X-axis. A slider is slidably mounted on the slide cylinder. The slider is connected to the point fixing plate. The slide cylinder can drive the point fixing plate to move closer to the product positioning plate along the X-axis.

[0006] As a preferred technical solution of this utility model, the product positioning plate is provided with a platform cutout hole and a product placement surface, and the platform cutout hole is located on one side of the product placement surface along the Y-axis direction.

[0007] As a preferred technical solution of this utility model, the product placement surface is provided with a vacuum suction groove, which is arranged in a U-shape.

[0008] As a preferred technical solution of this utility model, the product positioning plate is further provided with a plurality of first positioning protrusions and a plurality of second positioning protrusions. The first positioning protrusions are located on the other side of the product placement surface along the Y-axis direction, and the second positioning protrusions are located on the side of the product placement surface along the X-axis direction.

[0009] As a preferred technical solution of this utility model, the positioning fixing plate is provided with a positioning connection part and a positioning fixing part. One end of the positioning connection part is connected to the slider of the slide cylinder, and the other end of the positioning connection part is connected to the positioning fixing part. The slide cylinder can drive the positioning fixing part to move closer to the platform hollow hole along the X-axis.

[0010] As a preferred technical solution of this utility model, the positioning and fixing part is provided with a plurality of hollowed-out circular holes.

[0011] As a preferred embodiment of this utility model, the cylinder limiting plate is provided with an adjustable limiting screw.

[0012] As a preferred embodiment of this utility model, one side of the support plate abuts against the other side of the product positioning plate along the X-axis.

[0013] As a preferred embodiment of this utility model, the base plate of the clamp is made of a rigid material.

[0014] As a preferred technical solution of this utility model, the product positioning plate, support plate and point fixing plate are all made of aluminum alloy or black bakelite with anodized surface.

[0015] This utility model relates to a vertical fixture for laser measurement of the thickness of a mobile phone back cover platform, which has the following beneficial effects: 1. Unique vertical design: This utility model sets up the product positioning plate vertically, so that the test platform surface of the mobile phone back cover faces the horizontal direction, and the laser beam can be injected horizontally, which fundamentally avoids the clamp body from blocking the laser path, resulting in good performance and strong practicality. 2. Precise positioning and rapid loading and unloading: This utility model uses a sliding cylinder to drive the point fixing plate to slide horizontally, realizing the switching between the "measuring position" and the "loading position": In the loading position, the point fixing plate is away from the product positioning plate, providing ample operating space for safe and rapid product loading and unloading; In the measuring position, the point fixing plate is pushed by the sliding cylinder to fit tightly against the product surface, and multiple hollow round holes automatically and precisely align with the preset measuring points. 3. Excellent safety protection performance: This utility model provides mechanical hard limit through the design of the cylinder limit plate, which effectively eliminates the risk of crushing glass products due to excessive cylinder return force caused by air source fluctuations or misoperation, and greatly improves the safety and reliability of measurement. 4. High efficiency and stability: This utility model combines vacuum adsorption to fix the product, ensuring the stability of the product in the vertical state, making the entire measurement process highly automated, with good repeatability and positioning accuracy, and significantly improving measurement efficiency and consistency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention under measurement conditions. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention under measurement conditions. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the present invention in the material feeding state. Figure 1 ; Figure 4 This is a schematic diagram of the overall structure of the present invention in the material feeding state. Figure 2 ; Figure 5 This is a schematic diagram of the overall structure of the present invention in the material feeding state (excluding the product). Figure 1 ; Figure 6 This is a schematic diagram of the overall structure of the present invention in the material feeding state (excluding the product). Figure 2 ; Figure 7 This is a schematic diagram of the structure of the product positioning plate of this utility model; The numbers on the map are: 1. Fixture base plate; 2. Sliding positioning mechanism; 3. Product positioning plate; 4. Support plate; 20. Point fixing plate; 21. Slide cylinder; 22. Cylinder limit plate; 23. Slider; 30. Platform hollow hole; 31. Product placement surface; 32. Vacuum suction groove; 33. First positioning protrusion; 34. Second positioning protrusion; 201. Positioning connection part; 202. Positioning fixing part; 203. Hollow round hole; 220. Limit screw. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the product of this utility model will be further described in detail below with reference to the embodiments and accompanying drawings.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] like Figure 1 and Figure 2 As shown, a vertical fixture for laser measurement of the thickness of a mobile phone back cover platform includes a fixture base plate 1. A sliding positioning mechanism 2, a product positioning plate 3, and several support plates 4 are mounted on the fixture base plate 1. The product positioning plate 3 is vertically arranged on the fixture base plate 1. The support plates 4 are located on one side of the product positioning plate 3 along the X-axis direction. The sliding positioning mechanism 2 is located on one side of the product positioning plate 3 along the Y-axis direction. The sliding positioning mechanism 2 includes a point fixing plate 20, a slide cylinder 21, and a cylinder limiting plate 22. The cylinder limiting plate 22 is connected to one outer side of the slide cylinder 21 along the X-axis direction. A slider 23 is slidably provided on the slide cylinder 21. The slider 23 is connected to the point fixing plate 20. The slide cylinder 21 can drive the point fixing plate 20 to move closer to the product positioning plate 3 along the X-axis direction.

[0021] It should be noted that during installation, the product positioning plate 3 is vertically fixed to the fixture base plate 1 using bolts or screws; the support plate 4 abuts against the product positioning plate 3 and is locked to the fixture base plate 1 using bolts or screws; the slide cylinder 21 is fixed to the fixture base plate 1 using bolts or screws, and its axial trajectory slides left and right along the X-axis direction; the point fixing plate is fixed to the slider 23 of the slide cylinder 21 using bolts or screws; and the cylinder limiting plate 22 is fixed to the rear end of the cylinder body of the slide cylinder 21 using bolts or screws.

[0022] like Figure 2 and Figure 7As shown, the product positioning plate 3 has a platform cutout 30 and a product placement surface 31. The platform cutout 30 is located on one side of the product placement surface 31 along the Y-axis. The platform cutout 30 facilitates laser penetration measurement of the product.

[0023] like Figure 7 As shown, the product placement surface 31 is provided with a vacuum suction groove 32, which is arranged in a U-shape.

[0024] It should be noted that the product placement surface 31 is provided with a U-shaped vacuum suction groove 32, and the product positioning plate 3 is provided with an air passage interface. The air passage interface is connected to the vacuum suction groove 32. An external suction device (not shown in the figure) is connected through the air passage interface, and the product in the vertical state is fixed by negative pressure adsorption.

[0025] like Figure 7 As shown, the product positioning plate 3 is also provided with a plurality of first positioning protrusions 33 and a plurality of second positioning protrusions 34. The first positioning protrusions 33 are located on the other side of the product placement surface 31 along the Y-axis direction, and the second positioning protrusions 34 are located on the side of the product placement surface 31 along the X-axis direction.

[0026] It should be noted that the first positioning bump 33 and the second positioning bump 34 are used to position and limit the position of the product.

[0027] like Figure 3 As shown, the positioning fixing plate 20 is provided with a positioning connecting part 201 and a positioning fixing part 202. One end of the positioning connecting part 201 is connected to the slider 23 of the slide cylinder 21, and the other end of the positioning connecting part 201 is connected to the positioning fixing part 202. The slide cylinder 21 can drive the positioning fixing part 202 to move closer to the platform cutout hole 30 along the X-axis. The positioning connecting part 201 and the positioning fixing part 202 are integrally formed.

[0028] It should be noted that during installation, bolts or screws are used to fix the positioning connection part 201 to the slider 23 of the slide cylinder 21, thereby securing the connection between the point fixing plate 20 and the slide cylinder 21.

[0029] like Figure 3 As shown, the positioning and fixing part 202 is provided with a plurality of hollowed-out circular holes 203. In this embodiment, both the point fixing plate 20 and the product positioning plate 3 can be disassembled and replaced to accommodate measurements of various sizes.

[0030] It should be noted that the perforated circular hole 203 is used for laser transmission. During measurement, the laser confocal microscope emits a laser beam that passes through the perforated circular hole 203 and vertically penetrates the back cover platform of the mobile phone to complete the thickness measurement.

[0031] like Figure 3 As shown, the cylinder limiting plate 22 is provided with an adjustable limiting screw 220.

[0032] It should be noted that an adjustable limit screw 220 is installed on the cylinder limit plate 22, which can adjust the return distance of the slide cylinder 21, making it flexible and convenient to use; in this embodiment, the slide cylinder 21 is electrically connected to the control panel (not shown in the figure) to control the movement of the slide cylinder 21.

[0033] It should be further explained that by setting the cylinder limit plate 22, the return end position of the slide cylinder 21 is mechanically limited to prevent it from retracting excessively due to air pressure or speed loss, thereby avoiding the point positioning plate from hitting or damaging the product surface and providing stability and safety in the working process.

[0034] like Figures 1 to 6 As shown, one side of the support plate 4 abuts against the other side of the product positioning plate 3 along the X-axis.

[0035] like Figures 1 to 7 As shown, the fixture base plate 1 is made of a rigid material. In this embodiment, the fixture base plate 1 can be made of rigid materials such as cast iron, steel, or aluminum alloy, and is preferably made of aluminum alloy.

[0036] It should be noted that the fixture base plate 1, as the basic platform of the entire fixture, is made of rigid material, has high hardness and rigidity, can withstand greater pressure and impact, has good stability, and is not easily deformed.

[0037] like Figures 1 to 7 As shown, the product positioning plate 3, support plate 4 and point fixing plate 20 are all made of anodized aluminum alloy or black bakelite to prevent scratching the product and reduce their own weight. In this embodiment, aluminum alloy is preferred.

[0038] It should be noted that after the aluminum alloy undergoes surface anodizing treatment, a hard oxide film is formed on the surface of the aluminum alloy, which has good corrosion resistance and can resist the erosion of media such as air, moisture, acids and alkalis, extending the service life of the product and reducing maintenance costs. At the same time, it also has advantages such as high strength and lightweight, good thermal conductivity, good processing performance and good aesthetics. Black bakelite is an excellent insulating material with high mechanical strength, good toughness and toughness, which can ensure the stability and reliability of products. It also has the advantages of good dimensional stability, corrosion resistance and good processing performance.

[0039] like Figures 1 to 7 As shown, the working process of this utility model is as follows: 1. Preparation: Connect the gas and power supply and start the equipment.

[0040] 2. Activate the slide cylinder 21: Control the movement of the slide cylinder 21 so that its slider 23 drives the point fixing plate 20 to extend to the left along the X-axis direction, at which time the space of the product positioning plate 3 is fully exposed.

[0041] 3. Placing the product: The operator places the mobile phone back cover with the area to be measured close to the platform cutout 30, and places it into the product positioning plate 3. The product is then positioned by the first positioning protrusion 33 and the second positioning protrusion 34.

[0042] 4. Activate adsorption: Turn on the suction device, and the back cover of the mobile phone will be firmly adsorbed onto the product positioning plate 3.

[0043] 5. Close the cylinder: Control the retraction action of the slide cylinder 21, and the slider 23 pushes the point fixing plate 20 to retract to the right along the X-axis direction; when it is close to the end of the stroke, the point fixing plate 20 will gently press on the surface of the product. When the slider 23 contacts the limit screw 220 on the cylinder limit plate 22, the movement stops. At this time, it enters the "measurement position" and all the hollow round holes 203 are precisely aligned with the measurement points on the back cover of the mobile phone.

[0044] 6. Measurement: The laser confocal microscope emits a laser beam that passes through the hollowed-out circular hole 203 and vertically penetrates the back cover platform of the mobile phone to complete the thickness measurement.

[0045] 7. Remove the product: After the measurement is completed, extend the slide cylinder 21 again, close the suction device, and the back cover of the mobile phone can be safely removed.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model still fall within the scope of this utility model's technical solution.

Claims

1. A vertical fixture for laser measurement of the thickness of a mobile phone back cover platform, characterized in that: It includes a fixture base plate (1), on which a sliding positioning mechanism (2), a product positioning plate (3) and several support plates (4) are installed. The product positioning plate (3) is vertically arranged on the fixture base plate (1), the support plates (4) are located on one side of the product positioning plate (3) along the X-axis direction, and the sliding positioning mechanism (2) is located on one side of the product positioning plate (3) along the Y-axis direction. The sliding positioning mechanism (2) includes a point fixing plate (20), a slide cylinder (21) and a cylinder limiting plate (22). The cylinder limiting plate (22) is connected to an outer side of the slide cylinder (21) along the X-axis direction. A slider (23) is slidably provided on the slide cylinder (21). The slider (23) is connected to the point fixing plate (20). The slide cylinder (21) can drive the point fixing plate (20) to approach the product positioning plate (3) along the X-axis direction.

2. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 1, characterized in that: The product positioning plate (3) is provided with a platform cutout hole (30) and a product placement surface (31). The platform cutout hole (30) is located on one side of the product placement surface (31) along the Y-axis direction.

3. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 2, characterized in that: The product placement surface (31) is provided with a vacuum suction groove (32), which is arranged in a U-shape.

4. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 3, characterized in that: The product positioning plate (3) is also provided with a number of first positioning protrusions (33) and a number of second positioning protrusions (34). The first positioning protrusions (33) are located on the other side of the product placement surface (31) along the Y-axis direction, and the second positioning protrusions (34) are located on one side of the product placement surface (31) along the X-axis direction.

5. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 4, characterized in that: The positioning plate (20) is provided with a positioning connection part (201) and a positioning fixing part (202). One end of the positioning connection part (201) is connected to the slider (23) of the slide cylinder (21), and the other end of the positioning connection part (201) is connected to the positioning fixing part (202). The slide cylinder (21) can drive the positioning fixing part (202) to move closer to the platform hollow hole (30) along the X-axis.

6. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 5, characterized in that: The positioning and fixing part (202) is provided with a number of hollow round holes (203).

7. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 1, characterized in that: The cylinder limiting plate (22) is provided with an adjustable limiting screw (220).

8. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 1, characterized in that: One side of the support plate (4) abuts against the other side of the product positioning plate (3) along the X-axis.

9. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 1, characterized in that: The fixture base plate (1) is made of a rigid material.

10. The vertical fixture for laser measurement of the thickness of a mobile phone back cover platform according to claim 1, characterized in that: The product positioning plate (3), support plate (4) and point fixing plate (20) are all made of aluminum alloy or black bakelite with anodized surface.

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