Floating pressure head for aging test of display

Abstract

The utility model discloses a floating pressure head for a display aging test, which comprises a pressure head, a first spring, a floating piece, a floating plate, a sleeve and a force value sensor, the first spring is arranged between the pressure head and the floating piece, the floating plate is movably arranged in the sleeve, one side of the floating plate is connected with the floating piece, and the force value sensor is arranged in the sleeve. A first spring is arranged on one side of the floating plate, a second spring is arranged on the other side of the floating plate, the second spring is arranged in a sleeve, a force value sensor is arranged on the outer side of the sleeve, and the outer wall of the floating plate and the inner wall of the sleeve are arranged according to a preset spacing distance. The display can adapt to small-angle pressing, automatic pressing testing can be completed under the action of a single shaft under the condition that the requirement for the force value is not high, and meanwhile buffering and steering functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of display aging test, in particular to a floating pressure head used for display aging test. Background Art

[0002] During the processing and production of displays, it is usually necessary to perform an aging press test on the display. Generally, the display is placed on a test platform, and then the press head is moved to the display position through a multi-axis moving mechanism. The display is then pressed and the aging test is performed reciprocally. The existing press head cannot contact the product vertically, and the adaptive effect is relatively poor when pressing the product. There is point contact between the press head and the product after contact. Utility Model Content

[0003] In order to address the shortcomings of the existing technology, the present application provides a floating pressure head for display aging testing, including a pressure head, a first spring, a floating part, a floating plate, a sleeve and a force sensor, wherein the first spring is arranged between the pressure head and the floating part, the floating plate is movably arranged in the sleeve and is connected to the floating part on one side, a second spring is arranged on the other side of the floating plate, the second spring is arranged in the sleeve, and a force sensor is arranged on the outside of the sleeve, wherein the outer wall of the floating plate and the inner wall of the sleeve are arranged at a preset spacing distance.

[0004] Furthermore, a first fixing plate is provided between the floating member and the pressure head, a second fixing plate is provided on the floating member, and two ends of the first spring are respectively in contact with the first fixing plate and the second fixing plate.

[0005] Furthermore, the first fixing plate has a protruding connecting portion for connecting the floating part, a first mounting groove is opened along the circumference of the connecting portion, and a second mounting groove is opened on the second fixing plate. The first spring is sleeved on the outside of the floating part and the connecting portion, and both ends are respectively installed in the first mounting groove and the second mounting groove.

[0006] Furthermore, the sleeve is a cylinder with openings at both ends, and the inner wall of the sleeve has an arc-shaped boss that penetrates to both ends of the cylinder.

[0007] Furthermore, a portion of the outer wall of the floating plate abuts against the arc-shaped boss, and another portion is spaced apart from the inner wall of the sleeve by 0.75-1 mm.

[0008] Furthermore, the force sensor is connected to the end of the sleeve through a third fixing plate, a plurality of equal-height screws are provided between the third fixing plate and the floating plate, and the second spring is sleeved on the equal-height screws.

[0009] Furthermore, a plurality of mounting holes are provided on the floating plate, and the contour screws pass through the mounting holes to be connected to the third fixed plate, and a spacing distance of 0.75-1 mm is provided between the contour screws and the mounting holes.

[0010] Furthermore, a third mounting groove is provided on the end surface of the floating plate, a fourth mounting groove is provided on the third fixed plate, and both ends of the second spring are respectively arranged in the third mounting groove and the fourth mounting groove.

[0011] Furthermore, the floating member is constructed as a universal ball head.

[0012] The benefit of this application lies in that the floating pressure head provided for display aging testing can achieve adaptive contact between the pressure head and the product, making the pressure head and the display perpendicular. When the display receives force and the deformation becomes larger, the floating part achieves adaptive contact between the pressure head and the product by receiving axial and radial forces. After the pressure head withdraws, it can be automatically straightened under the action of the first spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an embodiment of a floating indenter for display aging testing in this application;

[0014] Figure 2 for Figure 1 Middle AA section view;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the first fixed plate;

[0016] Figure 4 for Figure 1 Schematic diagram of the middle sleeve structure;

[0017] Figure 5 for Figure 2 Schematic diagram of the floating plate structure.

[0018] Components marked in the figure are: 10. Pressure head, 11. First fixed plate, 111. Connecting part, 112. First mounting slot, 12. Floating part, 13. Second fixed plate, 131. Second mounting slot, 14. First spring, 15. Sleeve, 151. Arc-shaped boss, 16. Floating plate, 161. Mounting hole, 162. Third mounting slot, 17. Concave screw, 18. Third fixed plate, 181. Fourth mounting slot, 19. Second spring, 20. Force sensor. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0022] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] See also Figure 1-Figure 5 , this embodiment provides a floating pressure head for display aging test, including a pressure head 10 for pressing the display, the left end of the pressure head 10 is fixed by a first fixing plate 11, the left end of the first fixing plate 11 is connected to a floating member 12, the left end of the floating member 12 is connected to a second fixing plate 13, a first spring 14 is provided between the first fixing plate 11 and the second fixing plate 13, the first spring 14 is sleeved on the outside of the floating member 12, a sleeve 15 is further provided at the left end of the floating member 12, a floating plate 16 is provided in the sleeve 15, the right end of the floating plate 16 is connected to the floating member 12, that is, the floating plate and the second fixing plate are jointly connected to the left side of the floating member 12, the left end of the floating plate 16 is connected to a third fixing plate 18 by four equal height screws 17, the third fixing plate 18 is fixedly connected to the end of the sleeve, a second spring 19 is sleeved on the equal height screw 17, and a force sensor 20 is provided at the left end of the third fixing plate 18.

[0026] Specifically, a connecting portion 111 is extended outward from the middle of the first fixed plate 11, and the floating member 12 is constructed as a universal ball head. The connecting portion 111 is connected to the right end of the universal ball head. A first mounting groove 112 is opened along the circumference of the connecting portion on the first fixed plate 11, and a second mounting groove 131 is opened around the outer circumference of the universal ball head on the second fixed plate 13. The first spring 14 is mounted on the outer side of the universal ball head and the connecting portion 111, and both ends are respectively installed in the first mounting groove 112 and the second mounting groove 131.

[0027] Specifically, the sleeve 15 is a cylindrical structure with openings at both ends, and the floating plate 16 is constructed as a circular plate with an arc-shaped outer wall, so that the floating plate 16 can move along the inner wall of the sleeve. In order to ensure that the floating plate can move radially, a gap of 1 mm is left between the outer wall of the floating plate 16 and the inner wall of the sleeve 15.

[0028] Since the entire floating pressure head is installed sideways during assembly, in order to prevent the floating plate 16 from sinking in the sleeve 15 and causing tilting, the inner wall of the sleeve 15 has an arc-shaped boss 151 that runs through both ends of the cylinder. During installation, the arc-shaped boss 151 is partially located below the inner wall of the sleeve and abuts against the outer wall of the floating plate 16, which can ensure that the pressure head is in a horizontal state.

[0029] Four sets of through-holes 161 are provided on the floating plate 16. Contour screws 17 pass through the mounting holes 161. One end is fixedly connected to the third fixing plate 18, and the other end can move within the mounting holes. In order to cooperate with the radial movement of the floating plate, a gap of 0.75mm or 1mm is left between the contour screws 17 and the inner wall of the mounting holes 161.

[0030] The floating plate 16 and the third fixed plate 18 respectively define a third mounting groove 162 and a fourth mounting groove 181 around the equal height screw 17 . Both ends of the second spring 19 are respectively disposed in the third mounting groove 162 and the fourth mounting groove 19 .

[0031] When performing an aging press test on a display, the force sensor 20 on the floating pressure head of the present application is fixed on a multi-axis moving platform. After the pressure head 10 contacts the display, the display begins to deform, the pressure head is subjected to pressure, and the floating part 12 rotates to ensure surface contact between the pressure head and the display. The floating part drives the second fixed plate and the floating plate to move into the sleeve. At the same time, the first spring 14 and the second spring 19 are compressed, and the pressure on the display is monitored in real time by the force sensor. After the pressing is completed, the pressure head retreats and is straightened by the first spring.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A floating indenter for display aging testing, characterized by: It includes a pressure head, a first spring, a floating part, a floating plate, a sleeve and a force sensor, wherein the first spring is arranged between the pressure head and the floating part, the floating plate is movably arranged in the sleeve and is connected to the floating part on one side, a second spring is arranged on the other side of the floating plate, the second spring is arranged in the sleeve, and a force sensor is arranged on the outside of the sleeve, wherein the outer wall of the floating plate and the inner wall of the sleeve are arranged at a preset spacing distance.

2. The floating indenter for display aging testing according to claim 1, characterized in that: A first fixing plate is provided between the floating member and the pressure head, a second fixing plate is provided on the floating member, and two ends of the first spring are respectively in contact with the first fixing plate and the second fixing plate.

3. The floating indenter for display aging testing according to claim 2, characterized in that: The first fixing plate has a protruding connecting portion for connecting the floating part, and a first mounting groove is provided along the circumference of the connecting portion. The second fixing plate has a second mounting groove. The first spring is sleeved on the outside of the floating part and the connecting portion, and both ends are respectively installed in the first mounting groove and the second mounting groove.

4. The floating indenter for display aging testing according to claim 1, wherein: The sleeve is a cylinder with openings at both ends, and the inner wall of the sleeve has an arc-shaped boss that penetrates to both ends of the cylinder.

5. The floating indenter for display aging testing according to claim 4, characterized in that: A portion of the outer wall of the floating plate abuts against the arc-shaped boss, and another portion is spaced apart from the inner wall of the sleeve by 0.75-1 mm.

6. The floating indenter for display aging testing according to claim 5, characterized in that: The force sensor is connected to the end of the sleeve through a third fixing plate. A plurality of equal-height screws are arranged between the third fixing plate and the floating plate. The second spring is sleeved on the equal-height screws.

7. The floating indenter for display aging testing according to claim 6, characterized in that: The floating plate is provided with a plurality of mounting holes, and the contour screws penetrate through the mounting holes to be connected to the third fixing plate, and a spacing distance of 0.75-1 mm is provided between the contour screws and the mounting holes.

8. The floating indenter for display aging testing according to claim 6, characterized in that: A third mounting groove is defined on the end surface of the floating plate, a fourth mounting groove is defined on the third fixed plate, and two ends of the second spring are respectively disposed in the third mounting groove and the fourth mounting groove.

9. The floating indenter for display aging testing according to claim 1, characterized in that: The floating element is configured as a universal ball joint.

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