Pivot torsion testing machine for liquid crystal display

Abstract

The utility model discloses a liquid crystal display pivot torsion testing machine in the field of liquid crystal display torsion testing, one side of a machine table is provided with an installation box and a movable plate, the movable plate is provided with a base locking table, and the top end of the movable plate is provided with a rotating rod and a rotating bearing which are used for realizing rotating connection with the installation box. A rotating arm, a fixing rod and a sensor are arranged in the mounting box, the sensor is arranged at the top end of the fixing rod, one end of the rotating arm is fixedly connected with the rotating rod and rotates along with the rotating rod, and the other end of the rotating arm makes contact with the sensor. A display limiting clamp assembly and a rotating motor used for driving the display limiting clamp assembly to rotate are arranged on the other side of the machine table, and after the display limiting clamp assembly clamps the display screen, when the rotating motor drives the display screen to carry out a rotation test, the display screen is clamped by the display limiting clamp assembly; and the guide rail mounting seat and the movable seat can generate position changes under the elastic force action of the first spring and the second spring respectively, so that the hard extrusion phenomenon can be effectively avoided, and the display screen is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display torque testing, in particular to a liquid crystal display pivot torque testing machine. Background Art

[0002] The monitor pivot is a mechanical device used to connect the monitor screen and the bracket to realize the functions of screen rotation, tilt and height adjustment, so that the monitor screen can rotate in the horizontal direction and realize the conversion from horizontal to vertical to adapt to different usage needs, such as writing documents, browsing web pages or watching movies. The monitor pivot is usually composed of multiple parts, including rotating parts, pivot mechanisms, elastic parts, bearing seats, etc. These parts work together to ensure the stability and flexibility of the monitor screen. In order to ensure the quality and performance of the monitor pivot, a series of tests are required;

[0003] The LCD monitor pivot test mainly evaluates the stability, durability and functionality of the monitor when it rotates around its pivot. The test method is usually to rotate the monitor from the initial position (usually vertical or horizontal) and record any abnormal phenomena during the rotation, such as shaking, abnormal noise, freezing, etc.

[0004] Current LCD pivot torque testing machines usually use automated testing equipment for primary testing, supplemented by manual assisted testing and software simulation testing. However, existing LCD pivot torque testing machines are prone to hard squeezing during use, resulting in damage to the display. Utility Model Content

[0005] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a liquid crystal display pivot torque tester, which can effectively solve the technical problem that the existing liquid crystal display pivot torque tester is prone to hard squeezing during use, thereby causing damage to the display.

[0006] The utility model solves the technical problem by adopting the following technical solution: a liquid crystal display pivot torque tester, comprising a machine platform, a mounting box and a movable plate are arranged on one side of the machine platform, the movable plate is provided with a base locking platform connected thereto, a gap is provided between the movable plate and the mounting box to form a movable groove, and a rotating rod and a rotating bearing for realizing a rotation connection with the mounting box are arranged on the top of the movable plate, a rotating arm, a fixed rod and a sensor are arranged inside the mounting box, the sensor is arranged on the top of the fixed rod, one end of the rotating arm is fixedly connected to the rotating rod and rotates therewith, the other end of the rotating arm is in contact with the sensor but is not connected thereto, and a display limit clamp assembly and a rotating motor for driving the display limit clamp assembly to rotate are arranged on the other side of the machine platform;

[0007] The display limit clamp assembly includes a rotating plate and two jig plates, the rotating motor is drivingly connected to the rotating plate, the jig plates are respectively arranged at the left and right ends of the rotating plate and are connected to each other, each jig plate is provided with two symmetrically distributed display limit modules, the display limit module includes a position adjustment block, a guide rail mounting seat and a movable seat, the guide rail mounting seat is non-fixedly connected to the position adjustment block, and two first springs distributed up and down are provided between the guide rail mounting seat and the position adjustment block, the movable seat is non-fixedly connected to the guide rail mounting seat, and two second springs distributed left and right are provided between the movable seat and the guide rail mounting seat.

[0008] Preferably, the upper and lower ends of the jig plate are fixed with a first guide rod, the position adjustment block is slidably connected to the first guide rod, and the position adjustment block is provided with a second lifting guide rail connected to it, the second lifting guide rail is provided with a second lifting slider slidably matched to it, the second lifting slider is provided with a lifting seat connected to it, the upper and lower ends of the position adjustment block are provided with a first limit block, a second guide rod penetrating the lifting seat is provided between the two first limit blocks, and the lifting seat is slidably matched to the second guide rod, the first spring is respectively sleeved on the two ends of the second guide rod, and the guide rail mounting seat is connected to the lifting seat The guide rail mounting seat is provided with a second linear guide rail connected to the guide rail mounting seat, and the second linear guide rail is provided with a second linear slider which is slidably matched with the guide rail mounting seat. Second limit blocks are provided at both ends of the guide rail mounting seat, and a third guide rod which passes through the second linear slider is provided between the two second limit blocks, and the second linear slider is slidably matched with the third guide rod. The second spring is respectively sleeved on both ends of the third guide rod. The movable seat is connected to the second linear slider and moves therewith. The first clamp block is fixedly arranged at the front end of the movable seat, and the second clamp block is arranged on the end surface of the movable seat and is detachably connected thereto.

[0009] Preferably, the jig plate is provided with a position adjustment groove, the position adjustment block is provided with a locking groove for cooperating and locking with the jig plate, the left and right ends of the second fixture block are provided with position adjustment holes, and the movable seat is provided with a locking hole for cooperating and locking with the second fixture block.

[0010] Preferably, the machine is provided with a linear module for driving the installation box to move, the linear module includes a first linear guide rail, a first linear slider slidably matched with the first linear guide rail, and a slide plate connected to the first linear slider and moving therewith, the installation box is fixed on the end surface of the slide plate, the movable plate is provided with a first lifting guide rail connected thereto, the first lifting guide rail is provided with a first lifting slider slidably matched therewith, and the movable plate is provided with a lead screw and an adjusting nut for limiting the longitudinal position of the first lifting slider, and the lead screw is transmission-connected to the first lifting slider.

[0011] Preferably, the installation box is provided with an installation block and a roller, and the outer edge of the roller is in contact with the back of the movable plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting up a display limit clamp assembly, since the display limit module includes a position adjustment block, a guide rail mounting seat and a movable seat, and two first springs distributed up and down are arranged between the guide rail mounting seat and the position adjustment block, the movable seat and the guide rail mounting seat are not fixedly connected, and two second springs distributed left and right are arranged between the movable seat and the guide rail mounting seat, therefore, after the display limit clamp assembly clamps the display screen, when the rotating motor drives the display screen to perform a rotation test, the guide rail mounting seat and the movable seat can produce position changes under the elastic force of the first spring and the second spring respectively. This setting can effectively avoid the phenomenon of hard extrusion and has a protective effect on the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a liquid crystal display pivot torque tester from a front view angle of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of a rear-view angle of a liquid crystal display pivot torque tester of the utility model;

[0016] Figure 3 It is a plan view of a liquid crystal display pivot torque testing machine of the utility model;

[0017] Figure 4 It is a three-dimensional diagram of a display limit fixture assembly in a liquid crystal display pivot torque testing machine of the utility model;

[0018] Figure 5 for Figure 4 A magnified view of the structure of part A.

[0019] Numbers in the figure:

[0020] 1-rotating bearing; 2-rotating rod; 3-rotating arm; 4-fixed rod; 6-screw rod; 7-roller; 8-mounting block; 9-movable plate; 10-base locking table; 11-rotating motor; 12-adjusting nut; 13-first lifting guide rail; 14-first lifting slider; 15-installation box; 16-machine table; 17-sensor; 19-slide plate; 20-first linear guide rail; 21-first linear slider; 22-position adjustment groove; 23-rotating plate; 25-jig plate; 26-first limit block; 27-second lifting guide rail; 28-second guide rod; 29-movable seat; 30-third guide rod; 31-second linear guide rail; 32-first fixture block; 33-second fixture block; 34-locking hole; 35-position adjustment hole; 36-second linear slider; 37-guide rail mounting seat; 38-lifting seat; 39-second limit block; 40-second lifting slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-5As shown, the utility model provides a liquid crystal display pivot torque testing machine, including a machine table 16, the machine table 16 is provided with a linear module for driving the installation box 15 to move, the installation box 15 and the movable plate 9 are provided on one side of the machine table 16, the installation box 15 is provided with a mounting block 8 and a roller 7, the outer edge of the roller 7 is in contact with the back of the movable plate 9, the setting of the roller 7 can play a supporting role and reduce the problem of friction, the linear module includes a first linear guide rail 20, a first linear slider 21 that slides with the first linear guide rail 20, and a slide plate 19 that is interconnected with the first linear slider 21 and moves therewith, the installation box 15 is fixedly arranged on the end surface of the slide plate 19, the movable plate 9 is provided with a first lifting guide rail 13 connected thereto, and the first lifting guide rail 13 is provided with a first lifting slider 1 that slides with it. 4, and the movable plate 9 is provided with a screw rod 6 and an adjusting nut 12 for limiting the longitudinal position of the first lifting slider 14, the screw rod 6 is transmission-connected with the first lifting slider 14, the movable plate 9 is provided with a base locking platform 10 connected thereto, a gap is provided between the movable plate 9 and the installation box 15 to form a movable groove, and the top of the movable plate 9 is provided with a rotating rod 2 and a rotating bearing 1 for realizing rotational connection with the installation box 15, the interior of the installation box 15 is provided with a rotating arm 3, a fixed rod 4 and a sensor 17, the sensor 17 is arranged at the top of the fixed rod 4, one end of the rotating arm 3 is fixedly connected to the rotating rod 2 and rotates therewith, the other end of the rotating arm 3 is in contact with the sensor 17 but not connected, and the other side of the machine table 16 is provided with a display limit clamp assembly and a rotating motor 11 for driving the display limit clamp assembly to rotate;

[0023] The display limit clamp assembly includes a rotating plate 23 and two fixture plates 25, the rotating motor 11 is connected to the rotating plate 23, the fixture plate 25 is provided with a position adjustment slot 22, the position adjustment block is provided with a locking slot for locking with the fixture plate 25, the position adjustment block is moved to a suitable position and then locked, the left and right ends of the second fixture block 33 are provided with position adjustment holes 35, and the movable seat 29 is provided with a locking hole 34 for locking with the second fixture block 33, the second fixture block 33 is moved to a suitable position and then locked, so that the spacing between the first fixture block 32 and the second fixture block 33 can be The jig plates 25 are respectively arranged at the left and right ends of the rotating plate 23 and are connected to each other. Each jig plate 25 is provided with two symmetrically distributed display limit modules. The display limit module includes a position adjustment block, a guide rail mounting seat 37 and a movable seat 29. The guide rail mounting seat 37 is non-fixedly connected to the position adjustment block, and two first springs distributed up and down are arranged between the guide rail mounting seat 37 and the position adjustment block. The movable seat 29 is non-fixedly connected to the guide rail mounting seat 37, and two second springs distributed left and right are arranged between the movable seat 29 and the guide rail mounting seat 37.

[0024] The first guide rod is fixedly provided at both the upper and lower ends of the jig plate 25, the position adjustment block is slidably connected with the first guide rod, and the position adjustment block is provided with a second lifting guide rail 27 connected thereto, the second lifting guide rail 27 is provided with a second lifting slider 40 slidably matched therewith, the second lifting slider 40 is provided with a lifting seat 38 connected thereto, the first limit block 26 is provided at both the upper and lower ends of the position adjustment block, a second guide rod 28 penetrating the lifting seat 38 is provided between the two first limit blocks 26, and the lifting seat 38 is slidably matched with the second guide rod 28, the first spring is respectively sleeved on both ends of the second guide rod 28, the guide rail mounting seat 37 is connected to the lifting seat 38 and moves with it Lift and lower together, the guide rail mounting seat 37 is provided with a second linear guide rail 31 interconnected with it, the second linear guide rail 31 is provided with a second linear slider 36 slidably matched with it, and the left and right ends of the guide rail mounting seat 37 are provided with second limit blocks 39, and a third guide rod 30 passing through the second linear slider 36 is provided between the two second limit blocks 39, and the second linear slider 36 is slidably matched with the third guide rod 30, and the second spring is respectively sleeved on both ends of the third guide rod 30, the movable seat 29 is connected to the second linear slider 36 and moves therewith, the first clamp block 32 is fixedly arranged at the front end of the movable seat 29, and the second clamp block 33 is arranged on the end surface of the movable seat 29 and is detachably connected with it.

[0025] Compared with the conventional technology: by setting up a display limit clamp assembly, since the display limit module includes a position adjustment block, a guide rail mounting seat 37 and a movable seat 29, and two first springs distributed up and down are arranged between the guide rail mounting seat 37 and the position adjustment block, the movable seat 29 is not fixedly connected to the guide rail mounting seat 37, and two second springs distributed left and right are arranged between the movable seat 29 and the guide rail mounting seat 37, therefore, after the display limit clamp assembly clamps the display screen, when the rotating motor 11 drives the display screen to perform a rotation test, the guide rail mounting seat 37 and the movable seat 29 can produce position changes under the elastic force of the first spring and the second spring respectively, and this arrangement can effectively avoid the phenomenon of hard extrusion and has a protective effect on the display screen.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A liquid crystal display pivot torque tester, comprising a machine platform, characterized in that: A mounting box and a movable plate are provided on one side of the machine, the movable plate is provided with a base locking platform connected thereto, a gap is provided between the movable plate and the mounting box to form a movable groove, and a rotating rod and a rotating bearing for realizing a rotational connection with the mounting box are provided on the top of the movable plate, a rotating arm, a fixed rod and a sensor are provided inside the mounting box, the sensor is provided on the top of the fixed rod, one end of the rotating arm is fixedly connected to the rotating rod and rotates therewith, and the other end of the rotating arm is in contact with the sensor but not connected thereto, and a display limit clamp assembly and a rotating motor for driving the display limit clamp assembly to rotate are provided on the other side of the machine; The display limit clamp assembly includes a rotating plate and two jig plates, the rotating motor is drivingly connected to the rotating plate, the jig plates are respectively arranged at the left and right ends of the rotating plate and are connected to each other, each jig plate is provided with two symmetrically distributed display limit modules, the display limit module includes a position adjustment block, a guide rail mounting seat and a movable seat, the guide rail mounting seat is non-fixedly connected to the position adjustment block, and two first springs distributed up and down are provided between the guide rail mounting seat and the position adjustment block, the movable seat is non-fixedly connected to the guide rail mounting seat, and two second springs distributed left and right are provided between the movable seat and the guide rail mounting seat.

2. A liquid crystal display pivot torque tester according to claim 1, characterized in that: The upper and lower ends of the jig plate are fixed with a first guide rod, the position adjustment block is connected to the first guide rod in a sliding manner, and the position adjustment block is provided with a second lifting guide rail connected to it, the second lifting guide rail is provided with a second lifting slider that is slidably matched with it, and the second lifting slider is provided with a lifting seat that is connected to it, and the upper and lower ends of the position adjustment block are provided with a first limit block, and a second guide rod that passes through the lifting seat is provided between the two first limit blocks, and the lifting seat is slidably matched with the second guide rod, and the first spring is respectively sleeved on the two ends of the second guide rod, the guide rail mounting seat is connected to the lifting seat and lifts together with it, the guide rail mounting seat is provided with a second linear guide rail that is connected to it, and the second linear guide rail is provided with a second linear slider that is slidably matched with it, and the left and right ends of the guide rail mounting seat are provided with a second limit block, and a third guide rod that passes through the second linear slider is provided between the two second limit blocks, and the second linear slider is slidably matched with the third guide rod, and the second spring is respectively sleeved on the two ends of the third guide rod, and the movable seat is connected to the second linear slider and moves together with it, the first clamp block is fixedly provided at the front end of the movable seat, and the second clamp block is provided on the end surface of the movable seat and is detachably connected with it.

3. A liquid crystal display pivot torque tester according to claim 2, characterized in that: The jig plate is provided with a position adjustment groove, the position adjustment block is provided with a locking groove for locking with the jig plate, the left and right ends of the second fixture block are provided with position adjustment holes, and the movable seat is provided with a locking hole for locking with the second fixture block.

4. The LCD pivot torque tester according to claim 1, characterized in that: The machine is provided with a linear module for driving the installation box to move, the linear module includes a first linear guide rail, a first linear slider slidably matched with the first linear guide rail, and a slide plate connected to the first linear slider and moving therewith, the installation box is fixedly arranged on the end surface of the slide plate, the movable plate is provided with a first lifting guide rail connected thereto, the first lifting guide rail is provided with a first lifting slider slidably matched therewith, and the movable plate is provided with a lead screw and an adjusting nut for limiting the longitudinal position of the first lifting slider, and the lead screw is transmission-connected to the first lifting slider.

5. The LCD pivot torque tester according to claim 1, characterized in that: The installation box is provided with an installation block and a roller, and the outer edge of the roller is in contact with the back of the movable plate.

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