Mobile phone TP screen and middle frame fitting sealing performance detection device

Abstract

The utility model discloses a mobile phone TP screen and middle frame fitting sealing performance detection device, and relates to a product sealing performance detection device in the manufacturing industry. The device comprises a workbench serving as a carrier; the mold table is mounted on the working table and used for placing the middle frame and filling gas into the middle frame; the mold cover plate comprises a supporting plate and pressing blocks, and the four ends of the supporting plate are each provided with one pressing block used for pressing the frame of the middle frame; the pressing mechanisms are arranged on the two sides of the mold table and used for fixing the mold cover plate to cover and press the middle frame; the jacking mechanisms are arranged on the two sides of the mold table and used for sealing the through holes in the two ends of the middle frame. The utility model has the beneficial effects that the pressing block is pressed on the frame surface of the middle frame, so that the TP screen is not stressed, the leakage point is not closed, the leakage point can be better searched, an inflation pressurization method is combined with underwater observation, the micron-sized air leakage defect can be detected, the leakage position can be visually displayed by a transparent water medium observation method, and the defect positioning is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to product sealing performance detection device among manufacturing, concretely relates to a kind of mobile phone TP screen and frame adhesion sealing property detection device. BACKGROUND

[0002] With the rapid development of smart phone, the adhesion sealing property of touch screen (TP screen) and frame becomes the key factor influencing equipment waterproof, dustproof performance. The traditional detection method mainly relies on artificial visual inspection, these methods are not only inefficient, and difficult to accurately detect tiny gap or adhesion problem, leading to unstable product quality, especially in high-end smart phone market, user's sealing property requirement of equipment is increasing.

[0003] Therefore, an efficient, accurate, cost-appropriate detection device is needed, which can quickly identify the adhesion sealing property problem of TP screen and frame, ensure product quality, meet the high standard requirements of modern smart phone manufacturing. SUMMARY

[0004] The utility model aims at the prior art, difficult to accurately detect tiny gap or adhesion problem, provide a kind of mobile phone TP screen and frame adhesion sealing property detection device.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of mobile phone TP screen and frame adhesion sealing property detection device, it includes:

[0006] Workbench, as carrier;

[0007] Mold base is installed on workbench, for placing frame, and filling gas into frame;

[0008] Die cover plate, the die cover plate includes support plate and pressing block, four ends of the support plate are respectively provided with a pressing block for pressing frame border;

[0009] Pressing mechanism is provided with two and is symmetrically arranged on the both sides of mold base, for fixing die cover plate and pressing on frame;

[0010] Tightening mechanism is provided with two and is symmetrically arranged on the both sides of mold base, for closing the through hole of both ends of frame;

[0011] The mold base, die cover plate and tightening mechanism cooperate to form closed test cavity inside frame, then the whole equipment is put into water and whether there is bubble to come out is observed.

[0012] Further, the side of the pressing block and tightening mechanism is equipped with air-avoiding groove.

[0013] Further, the support plate is equipped with the finger slot groove matched with pressing mechanism.

[0014] Further, the mold table is internally provided with a product accommodating cavity for placing the middle frame, a gas inlet channel for filling gas into the product accommodating cavity, and a sealing groove at the bottom of the product accommodating cavity for limiting the sealing ring, and the sealing ring is used for bearing the middle frame.

[0015] Further, the sealing ring comprises a rubber frame and a supporting part, the rubber frame is rectangular, and a supporting part for supporting the middle frame is arranged on the inner wall of the rubber frame.

[0016] Further, the pressing mechanism comprises two clamping fingers, a mounting frame, a hinge column and a return spring, the two clamping fingers are symmetrically arranged, the middle part of the clamping fingers is movably mounted on the mounting frame through the hinge column, the return spring is connected between the end of the clamping finger and the mounting frame, the mounting frame is in U-shaped and is mounted on the workbench, and the clamping fingers are located at the two ends of the mounting frame.

[0017] Further, the pressing mechanism comprises:

[0018] A fixing table is fixed on the workbench, and the fixing table comprises a positioning plate and a hinge part;

[0019] A rotating structure comprises a connecting part and a holding part, and the connecting part is hinged with the hinge part;

[0020] A pressing rubber head is used for closing the through hole on the middle frame;

[0021] A push rod is connected with the pressing rubber head at one end and passes through the positioning plate at the other end;

[0022] A connecting piece is in arc-shaped structure, one end of the connecting piece is hinged with the push rod, and the other end of the connecting piece is hinged with the connecting part;

[0023] The hinged part of the connecting piece and the push rod and the hinged part of the connecting part and the fixing table are on the same horizontal line.

[0024] After the above technical scheme is adopted, the beneficial effects of the present application are as follows: the pressing block is pressed on the frame surface of the middle frame, so that the TP screen is not stressed, and the leakage point is not closed, the leakage point can be better found, the inflation and pressure method is combined with underwater observation, the micron-level air leakage defect can be detected, the transparent water medium observation method directly displays the leakage position, and the defect positioning is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a structural schematic view of the utility model.

[0027] Figure 2 is an exploded view of the utility model.

[0028] Figure 3 is a structural schematic view of the mold cover plate in the utility model.

[0029] Figure 4 is a structural schematic view of the mold table in the utility model.

[0030] Figure 5 is a structural schematic view of the pressing mechanism in the utility model.

[0031] Figure 6 is a structural schematic view of the pressing mechanism in the utility model.

[0032] Reference signs: workbench 1, mold table 2, product accommodating cavity 21, air inlet channel 22, sealing groove 23, sealing ring 24, rubber frame 241, supporting part 242, mold cover plate 3, supporting plate 31, clamping finger groove 311, pressing block 32, emptying groove 321, pressing mechanism 4, clamping finger 41, mounting frame 42, hinged column 43, return spring 44, pressing mechanism 5, fixed table 51, positioning plate 511, hinged part 512, rotating structure 52, connecting part 521, holding part 522, pressure-closed rubber head 53, push rod 54, connecting piece 55. DETAILED DESCRIPTION

[0033] Referring to Figures 1-6 The technical scheme adopted by the embodiment is: a mobile phone TP screen and middle frame adhesion sealing property detection device, which comprises:

[0034] The workbench 1 as a carrier.

[0035] The mold table 2 is mounted on the workbench 1 by bolts. The mold table 2 is used to place the middle frame and fill the middle frame with gas.

[0036] The mold cover plate 3 is used to press the frame of the middle frame.

[0037] Two pressing mechanisms 4 are symmetrically arranged on both sides of the mold table 2. The pressing mechanism 4 is used to fix the mold cover plate 3 to cover and press on the middle frame.

[0038] Two pressing mechanisms 5 are symmetrically arranged on both sides of the mold table 2. The pressing mechanism 5 is used to close the through hole at both ends of the middle frame.

[0039] Through the combination of the workbench 1, the mold table 2, the mold cover plate 3, the pressing mechanism 4 and the jacking mechanism 5, the device has clear structure and simple operation, and can quickly complete the detection task. The device can be applicable to middle frames of different sizes and models, and only needs to adjust the mold table 2 and the mold cover plate 3, and has strong universality.

[0040] In the specific working process, the middle frame is placed on the mold table 2 in the first step, the mold cover plate 3 is placed on the surface of the middle frame in the second step, and the mold cover plate 3 is pressed downward so that the lower surface of the middle frame is tightly attached to the mold table 2. In the third step, the pressed mold cover plate 3 is fixed by the pressing mechanism 4. In the fourth step, the jacking mechanism 5 is started to close the through holes at both ends of the middle frame. In the fifth step, the entire device is placed in water, the mold table 2 is inflated into the middle frame, and whether bubbles are observed to come out.

[0041] Specifically, the product accommodating cavity 21 is arranged in the mold table 2, and the product accommodating cavity 21 is used for placing the middle frame. The product accommodating cavity 21 is provided with the air inlet channel 22, and the air inlet channel 22 is used for inflating the gas into the product accommodating cavity 21. The product accommodating cavity 21 is further provided with the sealing groove 23 and the sealing ring 24 for bearing the middle frame. The sealing ring 24 is composed of the rubber frame 241 and the supporting part 242, the rubber frame 241 is in a rectangular shape, and the inner wall is provided with the supporting part 242 for supporting the middle frame.

[0042] The sealing ring 24 is composed of the rubber frame 241 and the supporting part 242, the supporting part 242 is deformed when the middle frame is pressed, tightly attached to the lower surface of the middle frame, effectively prevents the gas from leaking, and ensures the accuracy of the detection result. The sealing ring 24 can be replaced according to the needs of different products, and further expands the application range of the device.

[0043] In the specific working process, the middle frame is placed on the supporting part 242, and as the mold cover plate 3 presses the middle frame, the supporting part 242 is deformed and tightly attached to the middle frame, preventing the inflating gas from leaking out from between the lower surface of the middle frame and the supporting part 242.

[0044] Specifically, the specific structure of the mold cover plate 3 includes the supporting plate 31 and the pressing block 32. The four ends of the supporting plate 31 are respectively provided with one pressing block 32 for pressing the frame of the middle frame, and the side of the pressing block 32 matched with the jacking mechanism 5 is provided with the empty slot 321. In addition, the supporting plate 31 is further provided with the clamping finger groove 311 matched with the pressing mechanism 4.

[0045] The side of the pressing block 32 matched with the tightening mechanism 5 is provided with a clearance groove 321, which avoids the interference between the pressing block 32 and the tightening mechanism 5. The support plate 31 is provided with a clamping finger groove 311 matched with the pressing mechanism 4, so that the mold cover plate 3 can be firmly fixed by the pressing mechanism 4, ensuring that the mold cover plate 3 will not shift or loosen during the detection process, improving the stability and reliability of the detection. The structural design of the mold cover plate 3 is simple and clear, and the cooperation of the pressing block 32 and the clamping finger groove 311 makes the operation more convenient, which can quickly complete the fixing and pressing of the middle frame, improving the detection efficiency.

[0046] In the specific working process, the pressing block 32 abuts against the frame of the middle frame, and as the pressing block 32 is pressed downward, a downward pressing force is applied to the frame on the upper surface of the middle frame, so that the frame on the lower surface of the middle frame tightly abuts against the supporting portion 242.

[0047] Specifically, the pressing mechanism 4 includes a clamping finger 41, a mounting frame 42, a hinge column 43, and a reset spring 44. The clamping finger 41 is symmetrically provided with two, and the clamping finger 41 is movably installed on the mounting frame 42 through the hinge column 43. The reset spring 44 is connected between the end of the clamping finger 41 and the mounting frame 42. The mounting frame 42 is in the shape of a U and is installed on the workbench 1, and the clamping finger 41 is located at both ends of the mounting frame 42.

[0048] The pressing mechanism 4 has a simple and clear structure design, and is convenient to operate. By manually pressing the end of the clamping finger 41, the fixing and releasing of the mold cover plate 3 can be realized, reducing the complexity of the operation. The design of the reset spring 44 enables the clamping finger 41 to automatically reset after being released and pressed, without the need for additional operation, simplifying the work process, reducing manual intervention, and reducing the possibility of operation errors.

[0049] In the specific working process, the clamping finger 41 remains closed under the action of the reset spring 44, preparing for clamping the workpiece. When the mold cover plate 3 is placed on the workbench 1, the end of the clamping finger 41 is manually pressed, the front end of the clamping finger 41 moves outward through the rotational movement of the hinge column 43, and the reset spring 44 is compressed. After the mold cover plate 3 is placed in position, the hand pressing the clamping finger 41 is released, and the elastic restoring force of the reset spring 44 causes the front end of the clamping finger 41 to close inward and be clamped into the clamping finger groove 311, thereby stably maintaining the distance between the mold cover plate 3 and the mold table 2, ensuring that the pressing force remains stable during the detection process and avoiding detection errors caused by pressure fluctuations. After the test is completed, the clamping finger 41 is manually pushed outward, the reset spring 44 is compressed, the clamping finger 41 is opened, and the mold cover plate 3 is released.

[0050] Specifically, the tightening mechanism 5 includes:

[0051] A fixed table 51 is fixed to the workbench 1, and the fixed table 51 includes a positioning plate 511 and a hinge portion 512.

[0052] The rotating structure 52 comprises a connecting part 521 and a holding part 522, and the connecting part 521 is hinged with the hinge part 512.

[0053] The pressure closing glue head 53 is used for closing the through hole on the middle frame.

[0054] The push rod 54 is connected with the pressure closing glue head 53 at one end and passes through the positioning plate 511 at the other end.

[0055] The connecting piece 55 is in an arc structure, one end of the connecting piece 55 is hinged with the push rod 54, and the other end is hinged with the connecting part 521.

[0056] The pressing mechanism 5 is composed of the fixed table 51, the rotating structure 52, the pressure closing glue head 53, the push rod 54 and the connecting piece 55, and the structure design is simple and clear, and the operation is convenient.

[0057] By rotating the holding part 522, the pressure closing glue head 53 can be quickly moved to the position of the through hole of the middle frame and pressure is applied to complete the closing of the through hole.

[0058] In the initial state in the specific working process, the pressure closing glue head 53 is separated from the through hole of the middle frame, and the push rod 54 is in the retracted position.

[0059] Working principle of the utility model:

[0060] Step 1: placing the middle frame

[0061] 1. The middle frame to be detected is placed into the product containing cavity 21 of the mold table 2, and the bottom of the middle frame is supported by the sealing ring 24 (glue frame 241 and supporting part 242) in the sealing groove 23 to ensure the preliminary sealing of the bottom.

[0062] Step 2: installing the mold cover plate 3

[0063] 1. The mold cover plate 3 is covered above the middle frame, and the pressing block 32 is aligned with the frame of the middle frame.

[0064] Step 3: pressing the mold cover plate 3

[0065] 1. Operate the two sides of the compression mechanism 4: manually drive the clamp finger 41 around the hinge column 43, rotate against the elastic force of the reset spring 44, and then press down the mold cover plate 3 to make the clamp finger slot 311 on the support plate 31 flush with the end of the clamp jaw. Then release the clamp finger 41 to make the clamp finger 41 end into the clamp finger slot 311, and the clamp finger 41 is kept in a locked state by the reset spring 44, ensuring that the mold cover plate 3 is tightly attached to the middle frame, completing the top and bottom sealing.

[0066] Step 4: Close the through hole at both ends of the middle frame

[0067] 1. Operate the two sides of the tightening mechanism 5:

[0068] Turn the holding part 522 to drive the connecting part 521 to rotate around the hinge part 512 of the fixed table 51.

[0069] The movement of the connecting part 521 pushes the push rod 54 along the positioning plate 511 in a straight line through the arc-shaped connecting piece 55, making the compression glue head 53 tightly close to the through hole at both ends of the middle frame to close the hole position.

[0070] 2. At this time, the mold table 2 and the tightening mechanism 5 together form a completely closed test cavity.

[0071] Step 5: Fill in the detection gas

[0072] 1. Fill in the gas (such as compressed air) into the test cavity through the gas inlet channel 22 of the mold table 2 and maintain a certain pressure.

[0073] Step 6: Water immersion detection

[0074] 1. Immersing the entire detector (including the middle frame and the sealing structure) into water.

[0075] 2. Observe whether there are bubbles escaping around the test cavity. If there are no bubbles, it indicates that the middle frame is air-tight; if there are bubbles, locate the leakage point according to the bubble position.

[0076] Step 7: Reset device

[0077] 1. Release the tightening mechanism 5: reverse rotate the holding part 522 to make the compression glue head 53 exit the through hole of the middle frame.

[0078] 2. Release the compression mechanism 4, and the reset spring 44 pushes the clamp finger 41 to release the mold cover plate 3.

[0079] 3. Take out the middle frame and complete the detection.

[0080] The above merely aims to explain the technical scheme of the present application and is not intended to limit the present application. Other modifications or equivalent replacements made by those skilled in the art to the technical scheme of the present application, as long as they do not depart from the spirit and scope of the present application, should be included in the scope of the claims of the present application.

Claims

1. A device for detecting the sealing performance of a mobile phone TP screen and its mid-frame, characterized in that: include The workbench (1) serves as a carrier; The mold table (2) is installed on the workbench (1) and is used to place the middle frame and fill the middle frame with gas; The mold cover plate (3) includes a support plate (31) and a pressing block (32). Each of the four ends of the support plate (31) is provided with a pressing block (32) for pressing the middle frame edge. The clamping mechanism (4) has two parts and is symmetrically arranged on both sides of the mold table (2) to fix the mold cover plate (3) to press against the middle frame; The clamping mechanism (5) has two parts and is symmetrically arranged on both sides of the mold table (2) to close the through holes at both ends of the middle frame; The mold platform (2), mold cover plate (3) and clamping mechanism (5) work together to form a closed test cavity inside the middle frame.

2. The device for detecting the sealing performance of a mobile phone TP screen and its mid-frame according to claim 1, characterized in that: The pressure block (32) is provided with a clearance groove (321) on the side that is adapted to the tightening mechanism (5).

3. The device for detecting the sealing performance of a mobile phone TP screen and its mid-frame according to claim 1, characterized in that: The support plate (31) is provided with a finger-clamping groove (311) adapted to the clamping mechanism (4).

4. The device for detecting the sealing performance of a mobile phone TP screen and its mid-frame according to claim 1, characterized in that: The mold platform (2) is provided with a product accommodating cavity (21) for placing the middle frame, an air inlet channel (22) for filling the product accommodating cavity (21) with gas, and a sealing groove (23) located at the bottom of the product accommodating cavity (21) for limiting the sealing ring (24). The sealing ring (24) is used to support the middle frame.

5. The device for detecting the sealing performance of a mobile phone TP screen and its mid-frame according to claim 4, characterized in that: The sealing ring (24) includes a rubber frame (241) and a support part (242). The rubber frame (241) is rectangular and its inner wall is provided with a support part (242) for supporting the middle frame.

6. The device for detecting the sealing performance of a mobile phone TP screen and its mid-frame according to claim 1, characterized in that: The clamping mechanism (4) includes a clamping finger (41), a mounting frame (42), a hinge column (43), and a return spring (44). Two clamping fingers (41) are symmetrically arranged, and the middle of each clamping finger is movably mounted on the mounting frame (42) through the hinge column (43). The return spring (44) connects the end of the clamping finger (41) and the mounting frame (42). The mounting frame (42) is U-shaped and mounted on the worktable (1). The clamping fingers (41) are located at both ends of the mounting frame (42).

7. The device for detecting the sealing performance of a mobile phone TP screen and its mid-frame according to claim 1, characterized in that: The clamping mechanism (5) includes: A fixed platform (51) is fixed on the workbench (1). The fixed platform (51) includes a positioning plate (511) and a hinge (512). The rotating structure (52) includes a connecting part (521) and a gripping part (522), wherein the connecting part (521) is hinged to the hinge part (512); Press the rubber head (53) to seal the through hole on the middle frame; The push rod (54) is connected at one end to the pressure-closing head (53) and at the other end passes through the positioning plate (511); The connector (55) has an arc-shaped structure. One end of the connector (55) is hinged to the push rod (54), and the other end is hinged to the connecting part (521). The hinge (512) of the connector (55) and the push rod (54) and the hinge (512) of the connecting part (521) and the fixed platform (51) are on the same horizontal line.

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