Flat plate sheath to flat plate computer suction testing machine

Abstract

The utility model relates to flat plate sheath is to flat computer suction force testing machine, the gantry and the Y-shaped support distributed in the inside of gantry are equipped on the base, the Y-shaped support has the Y-shaped mouth to the up, the lower extreme of Y-shaped support is connected the base through the force transducer, and the upper extreme of Y-shaped support is equipped with the stay that spans Y-shaped mouth, the gantry installs the lifting seat, the lifting seat has the fixed part and the leaning part, the fixed part is used for holding the cover of flat plate sheath, makes the main part of flat plate sheath and the tablet computer that it adsorbed is set up to hang down, the leaning part is used for leaning against the back of the main part of flat plate sheath, makes the tablet computer steady hang down in the downside of stay, pulls flat plate sheath upwards through the lifting seat, under the stop holding of stay, the relative movement of tablet computer and the main part of flat plate sheath, the force transducer records Z axle direction tension value and exports to the control system, reach the test flat plate sheath is to tablet computer suction force size test detection, simple structure, wide use range, can carry out the test to many products.

Description

Technical Field

[0001] This utility model relates to the field of tablet computer protective case testing technology, specifically to the detection of the suction force of a tablet computer case on a tablet computer. Background Technology

[0002] Tablet cases typically connect to tablets using clips or magnetic attachments. In particular, the magnetic attachment method greatly affects the user experience, so the magnetic force of the tablet case on the tablet needs to be tested after production.

[0003] To simulate real-world usage scenarios and determine the suction force of a tablet case on a tablet under various conditions, this application aims to detect forces in different directions that may occur under real-world conditions, including the downward pull force along the Z-axis. Current methods for detecting Z-axis pull involve placing the tablet horizontally on a flat surface after it's attached to the case and then pushing it to measure the suction force. However, this differs significantly from the forces encountered when the tablet is tilted. When flat, the tablet's weight has an effect, and when tilted, the friction caused by the tablet's weight is eliminated. Therefore, a device is needed to detect the suction force of the tablet case on the tablet when tilted. The applicant has designed a tablet case suction force testing machine for this purpose, which is the subject of this application. Summary of the Invention

[0004] The purpose of this invention is to provide a tablet cover suction force testing machine for tablet computers, which can detect the suction force of the tablet cover on the tablet computer when it is inverted and sideways, and reduce the influence of human error.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A tablet computer suction force testing machine for a tablet computer case includes a base with a control system. The base also has an upward-protruding gantry and Y-shaped supports distributed inside the gantry. Each Y-shaped support has an upward-facing Y-shaped opening. The lower end of the Y-shaped support is connected to the base via a force sensor, which is electrically connected to the control system on the base. The upper end of the Y-shaped support has a pull bar spanning the Y-shaped opening. A lifting seat is installed on the gantry. The lifting seat has a holding part and a supporting part. The holding part holds the flip cover of the tablet computer case, suspending the main body of the case and the tablet computer it attracts. The supporting part abuts against the back of the main body of the case, suspending the tablet computer stably under the pull bar. The lifting seat then rises and pulls the case. Under the stop of the pull bar, the tablet computer and the main body of the case move relative to each other. The force sensor records the tension value in the Z-axis direction and outputs it to the control system.

[0006] The above scheme is further described as follows: the gantry frame includes symmetrically arranged columns and a crossbeam connecting the upper ends of the left and right columns together; the left and right ends of the lifting seat extend and are respectively connected to the corresponding columns through socket holes; two upward protruding screws are also provided on the base, and the two screws are connected to the pre-set threaded holes on the lifting seat, so that when the two screws rotate synchronously, they drive the lifting seat to move up and down.

[0007] The above solution is further described in that the holding part is a negative pressure adsorption plate, which is connected to the lifting seat through a linear slide rail structure, so that the negative pressure adsorption plate can be adjusted in the front and back direction relative to the lifting seat; the leaning part is a support rod extending downward from the negative pressure adsorption plate.

[0008] A further improvement in the above scheme is that a positioning mechanism is provided between the negative pressure adsorption plate and the lifting seat, which is used to lock the negative pressure adsorption plate and the lifting seat after the position is adjusted.

[0009] The above solution is further described in that the positioning mechanism includes a hanging arm and a positioning protrusion. The upper end of the hanging arm is fixedly connected to the lifting seat, while the lower end of the hanging arm extends to the side of the negative pressure adsorption plate and assembles the positioning protrusion. Multiple positioning holes are provided on the side of the negative pressure adsorption plate. After the negative pressure adsorption plate moves relative to the lifting seat and is adjusted to the correct position, the positioning protrusion extends out and is inserted into the corresponding positioning hole.

[0010] The above solution is further described in that the Y-shaped bracket is constructed of a crossbar and two upright plates. The crossbar is connected to the base through a force sensor, and the two upright plates are respectively connected to the two ends of the crossbar through socket holes, so that the two upright plates can be adjusted to be relatively close or far apart on the crossbar; the two ends of the pull bar are respectively fixed to the upper ends of the two upright plates.

[0011] Furthermore, the above solution includes inwardly protruding protective arms on the two upright plates, which are arranged at intervals. These protective arms act as guardrails to protect the tablet computer from sliding off the main body of the tablet cover.

[0012] A further improvement of the above solution is that the upper end of the support rod is provided with a threaded head, and the threaded head is connected to a pre-set threaded hole on the negative pressure adsorption plate, so that the support rod is replaceable.

[0013] A further aspect of the above solution is that the lower ends of the two lead screws are respectively connected to a synchronous belt via synchronous pulleys, and the synchronous belt is also connected to the output end of the motor, with the motor mounted on the base.

[0014] Furthermore, the protective arm is L-shaped and can perform articulated movements after being mounted on the upright plate.

[0015] Using the above structure, this utility model realizes the inverted side-standing tensile force test. The flip cover of the tablet cover is held in place by the lifting seat, allowing the main body of the tablet cover and the tablet computer it adheres to to hang vertically. The abutment part rests against the back of the main body of the tablet cover, ensuring the tablet computer hangs stably under the pull bar. The lifting seat then rises and pulls the tablet cover. Under the stop of the pull bar, the tablet computer and the main body of the tablet cover move relative to each other. The force sensor records the tensile force value in the Z-axis direction and outputs it to the control system, thus realizing the Z-axis tensile force test. This reduces friction caused by the tablet's own weight and allows for precise control of the lifting speed and angle, avoiding the influence of human factors on the insertion and extraction force. By recording the tensile force value and outputting it to the control system, the tensile force of the tablet cover on the tablet computer can be tested. The structure is simple, widely applicable, and can be used to test various products, making it highly practical. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention; Appendix Figure 2 for Figure 1 Enlarged schematic diagram of a partial structure in the embodiment; Appendix Figure 3 for Figure 2 Another perspective structural diagram of the embodiment; Appendix Figure 4 This is a partial enlarged structural diagram of the present invention during implementation. Detailed Implementation

[0017] The following will further explain the concept, specific structure and technical effects of the utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the utility model.

[0018] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0019] See Figure 1 , 2Figures 3 and 4 show schematic diagrams of a preferred embodiment of this utility model. This utility model relates to a suction force testing machine for a tablet computer case, comprising a base 1 with a control system. The control system is a common mechanical motion control system that outputs corresponding data to the production line. The base 1 is also provided with an upwardly protruding gantry 2 and Y-shaped supports 3 distributed inside the gantry. The Y-shaped supports 3 have an upward-facing Y-shaped opening. The lower end of the Y-shaped supports 3 is connected to the base through a force sensor 4. The force sensor 4 is electrically connected to the control system on the base. The upper end of the Y-shaped supports 3 is provided with a pull bar 31 spanning the Y-shaped opening. The pull bar 31 can be a steel bar or rope, etc., as long as it meets the working strength requirements. The lifting seat 5 is installed on the gantry frame 2. The lifting seat 5 has a holding part 51 and a supporting part 52. The holding part 51 is used to hold the flip cover 61 of the tablet cover, so that the main body 62 of the tablet cover and the tablet computer 7 it adsorbs are suspended. The supporting part 52 is used to abut against the back of the main body 62 of the tablet cover, so that the tablet computer 7 is stably suspended under the pull bar 31. At this time, the lifting seat 5 rises and pulls the tablet cover. Under the stop of the pull bar 31, the tablet computer 7 and the main body 62 of the tablet cover move relative to each other. The force sensor 4 records the tension value in the Z-axis direction and outputs it to the control system, so as to achieve the test detection of the suction force of the tablet cover on the tablet computer.

[0020] Figure 1 As shown, in this embodiment, the gantry frame 2 includes symmetrically arranged columns 21 and a crossbeam 22 connecting the upper ends of the left and right columns. The left and right ends of the lifting seat 5 extend and respectively connect to the corresponding columns 21 through socket holes to achieve lifting guidance. Two upward-protruding lead screws 11 are also provided on the base 1. The two lead screws 11 are connected to pre-set threaded holes on the lifting seat 5, so that when the two lead screws 11 rotate synchronously, they drive the lifting seat 5 to move up and down. Further, the lower ends of the two lead screws 11 are mounted on the base and respectively connected to a synchronous belt 12 through synchronous pulleys. The synchronous belt 12 is also connected to the output end of a motor 13, which is mounted on the base 1. This structure is compact and reasonable, achieving smooth and accurate lifting movement of the lifting seat 5.

[0021] Figure 1 , 2 As shown in Figures 3 and 4, in this embodiment, the retaining part 51 is a negative pressure adsorption plate. This negative pressure adsorption plate is connected to the lifting seat 5 via a linear slide rail structure, allowing the negative pressure adsorption plate to be adjusted in the front-to-back direction relative to the lifting seat 5 to adjust the work position and facilitate testing. The supporting part 52 is a support rod extending downward from the negative pressure adsorption plate. There are two or more support rods, and the upper end of the support rod is provided with a threaded head, which is connected to a pre-set threaded hole on the negative pressure adsorption plate. This makes the support rod replaceable, simple in structure, easy to manufacture, and meets the testing needs of products of different specifications.

[0022] A positioning mechanism 8 is also provided between the negative pressure adsorption plate and the lifting seat 5. The positioning mechanism 8 is used to lock the negative pressure adsorption plate and the lifting seat 5 after the position is adjusted. The positioning mechanism 8 includes a hanging arm 81 and a positioning protrusion 82. The upper end of the hanging arm 81 is fixedly connected to the lifting seat 5, while the lower end of the hanging arm 81 extends to the side of the negative pressure adsorption plate and assembles the positioning protrusion 82. Multiple positioning holes 511 are provided on the side of the negative pressure adsorption plate. After the negative pressure adsorption plate moves relative to the lifting seat and is adjusted to the correct position, the positioning protrusion 82 extends out and inserts into the corresponding positioning hole for easy connection. The positioning protrusion 82 can be a telescopic pin or a ball, etc., with a simple structure and stable and reliable operation.

[0023] Figure 1 , 2 As shown in Figures 3 and 4, in this embodiment, the Y-shaped bracket 3 is constructed of a crossbar 32 and two upright plates 33. The crossbar 32 is connected to the base 1 via a force sensor 4. The two upright plates 33 are connected to the two ends of the crossbar 32 via socket holes, allowing the two upright plates 33 to be adjusted relative to each other on the crossbar 32 to accommodate products of different sizes for testing. The two ends of the pull bar 31 are fixed to the upper ends of the two upright plates 33. The two upright plates 33 are also provided with inwardly protruding protective arms 34, which are arranged at intervals. The protective arms 34 act as guardrails to protect the tablet computer 7 from sliding off the main body 62 of the tablet cover. The protective arms 34 are L-shaped and can also perform articulated movements after being installed on the upright plates 33, facilitating testing operations. In this embodiment, the Y-shaped bracket 3 is fitted with a pre-set protective tray 14 on the base 1, which further provides protection against the tablet computer slipping off.

[0024] During implementation, the flip cover 61 of the tablet cover is first attached to the holding part 51 by negative pressure, so that the main body 62 of the tablet cover and the tablet computer 7 attached thereon are suspended vertically. The support part 52 is against the back of the main body 62 of the tablet cover to keep the tablet computer 7 suspended and inverted stably. Then, the negative pressure adsorption plate is moved so that the tablet computer 7 enters the Y-shaped bracket 3 and is located under the pull bar 31. At this time, the test is started. The lifting seat 5 is raised and the tablet cover is pulled. Under the stop of the pull bar 31, the tablet computer 7 and the main body 62 of the tablet cover move relative to each other. The force sensor 4 records the pulling force value in the Z-axis direction and outputs it to the control system to test the magnitude of the suction force of the tablet cover on the tablet computer.

[0025] This invention enables an inverted, side-standing tensile force test. The flip-top of the tablet cover is held in place by a lifting seat, allowing the main body of the tablet cover and the tablet computer it adheres to to hang vertically. A support part abuts against the back of the main body of the tablet cover, ensuring the tablet computer hangs stably under the pull bar. The lifting seat then rises and pulls the tablet cover. Under the stop of the pull bar, the tablet computer and the main body of the tablet cover move relative to each other. A force sensor records the tensile force value in the Z-axis direction and outputs it to the control system, thus achieving the Z-axis tensile force test. This reduces friction caused by the tablet's own weight and allows for precise control of the lifting speed and angle, avoiding the influence of human factors on the insertion and extraction force. By recording the tensile force value and outputting it to the control system, the system tests the suction force of the tablet cover on the tablet computer. It has a simple structure, a wide range of applications, and can be used to test various products, making it highly practical.

[0026] While the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the same structure and operation as described above and the accompanying drawings. For those skilled in the art, many equivalent improvements and variations can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and variations should all fall within the scope of protection claimed by the present invention.

Claims

1. A tablet cover suction testing machine for tablet computers, comprising a base (1) with a control system, characterized in that, The base (1) is also provided with an upwardly protruding gantry frame (2) and Y-shaped brackets (3) distributed inside the gantry frame. The Y-shaped brackets (3) have an upwardly facing Y-shaped opening. The lower end of the Y-shaped brackets (3) is connected to the base through a force sensor (4). The force sensor (4) is electrically connected to the control system on the base. The upper end of the Y-shaped brackets (3) is provided with a pull bar (31) that spans the Y-shaped opening. A lifting seat (5) is installed on the gantry frame (2). The lifting seat (5) has a holding part (51) and a leaning part (52). The holding part (51) The flip cover (61) used to hold the tablet cover makes the main body (62) of the tablet cover and the tablet computer (7) attached to it hang vertically. The backing part (52) is used to abut against the back of the main body (62) of the tablet cover, so that the tablet computer (7) hangs steadily under the pull bar (31). At this time, the lifting seat (5) rises up and pulls the tablet cover. Under the stop of the pull bar (31), the tablet computer (7) and the main body (62) of the tablet cover move relative to each other. The force sensor (4) records the tension value in the Z-axis direction and outputs it to the control system.

2. The tablet cover suction tester for tablet computers according to claim 1, characterized in that: The gantry frame (2) includes uprights (21) arranged symmetrically on the left and right sides and a crossbeam (22) connecting the upper ends of the left and right uprights together. The left and right ends of the lifting seat (5) extend and are respectively connected to the corresponding uprights (21) through the sleeve holes. Two screw rods (11) protruding upward are also provided on the base (1). The two screw rods (11) are connected to the threaded holes preset on the lifting seat (5) so that when the two screw rods (11) rotate synchronously, they drive the lifting seat (5) to move up and down.

3. The tablet cover suction tester for tablet computers according to claim 1, characterized in that: The holding part (51) is a negative pressure adsorption plate, which is connected to the lifting seat (5) through a linear slide rail structure, so that the negative pressure adsorption plate can be adjusted in the front and back direction relative to the lifting seat (5); the leaning part (52) is a support rod extending downward from the negative pressure adsorption plate.

4. The tablet cover suction tester for tablet computers according to claim 3, characterized in that: A positioning mechanism (8) is also provided between the negative pressure adsorption plate and the lifting seat (5). The positioning mechanism (8) is used to lock the negative pressure adsorption plate and the lifting seat (5) after the position is adjusted.

5. The tablet cover suction tester for tablet computers according to claim 4, characterized in that: The positioning mechanism (8) includes a hanging arm (81) and a positioning protrusion (82). The upper end of the hanging arm (81) is fixedly connected to the lifting seat (5), while the lower end of the hanging arm (81) extends to the side of the negative pressure adsorption plate and assembles the positioning protrusion (82). Multiple positioning holes are provided on the side of the negative pressure adsorption plate. After the negative pressure adsorption plate moves relative to the lifting seat and is adjusted to the correct position, the positioning protrusion (82) extends out and is inserted into the corresponding positioning hole.

6. The tablet cover suction tester for tablet computers according to claim 1, characterized in that: The Y-shaped bracket (3) is constructed of a crossbar (32) and two upright plates (33). The crossbar (32) is connected to the base (1) through a force sensor (4). The two upright plates (33) are connected to the two ends of the crossbar (32) through socket holes, so that the two upright plates (33) can be adjusted to be closer or further apart on the crossbar (32). The two ends of the pull bar (31) are fixed to the upper ends of the two upright plates (33).

7. The tablet cover suction tester for tablet computers according to claim 6, characterized in that: The two uprights (33) are also provided with inwardly protruding protective arms (34), which are arranged at intervals in front and behind. The protective arms (34) protect the tablet computer (7) that slides off the main body (62) of the tablet cover in a guardrail manner.

8. The tablet cover suction tester for tablet computers according to claim 3, characterized in that: The upper end of the support rod is provided with a threaded head, which is connected to a pre-set threaded hole on the negative pressure adsorption plate, making the support rod replaceable.

9. The tablet cover suction tester for tablet computers according to claim 2, characterized in that: The lower ends of the two lead screws (11) are connected to the timing belt (12) via timing pulleys. The timing belt (12) is also connected to the output end of the motor (13), which is mounted on the base (1).

10. The tablet cover suction tester for tablet computers according to claim 7, characterized in that: The protective arm (34) is L-shaped and can also perform articulated movements after being installed on the upright plate (33).

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