A folding screen hinge horizontal free angle detection device

Abstract

The utility model discloses a kind of folding screen hinge horizontal free angle detection devices, including work platform, supporting table is installed on work platform, and supporting the object to be detected, the object to be detected includes the board group one, board group two, which are connected by hinge rotation, at least two groups of horizontal force applying mechanisms are installed on the work platform outside supporting table, horizontal force applying mechanism simultaneously applies horizontal force which is perpendicular to hinge axial direction and opposite direction to the object to be detected, and the force point of horizontal force applying mechanism is provided with interval in hinge axial direction;It also includes at least two groups of displacement sensors, which are horizontally oriented to the object to be detected at detection end, and the detection point of displacement sensor is provided with interval in hinge axial direction;So that by horizontal force applying mechanism, the opposite force in horizontal direction is applied to hinge by the object to be detected, and the displacement change after being stressed is detected by displacement sensor, so that horizontal free angle can be obtained by detecting displacement combined with displacement interval, rapid and convenient detection is realized, especially suitable for batch detection.

Description

Technical Field

[0001] This utility model relates to the technical field of foldable screen testing equipment, and in particular to a device for detecting the horizontal free angle of a foldable screen hinge. Background Technology

[0002] The demand for foldable screen phones, watches and other 3C electronic products is growing, and the necessary hinge structure is constantly being updated and replaced. Major manufacturers are also paying more and more attention to the assembly process of its rotating structure. As an important component of foldable screen phones, the performance of the hinge determines the lifespan of the phone. Substandard hinges will affect the user experience and may even cause abnormal damage or make the product unusable.

[0003] The horizontal free angle is an important performance parameter for evaluating the tensile strength and holding force of the hinge itself. It is necessary to test the horizontal free angle parameter of the hinge to prevent damage to the screen and other components due to insufficient holding force after assembly.

[0004] In the current technology, the detection of the horizontal free angle parameter of the hinge is still limited to sampling inspection, which relies on professional equipment in the testing room, and cannot be carried out quickly, conveniently and in batches on the production line. Utility Model Content

[0005] To address the aforementioned issues, this application provides a structurally sound device for detecting the horizontal free angle of a folding screen hinge, thereby obtaining the horizontal free angle and enabling rapid and convenient detection, which is particularly suitable for batch testing needs.

[0006] The technical solution adopted in this utility model is as follows: A folding screen hinge horizontal free angle detection device includes a working platform, on which a support platform supporting the object to be inspected is mounted. The object to be inspected includes a first plate assembly and a second plate assembly connected by a hinge. At least two sets of horizontal force-applying mechanisms are mounted on the working platform located outside the support platform. The horizontal force-applying mechanisms simultaneously apply a horizontal force perpendicular to the hinge axis and opposite in direction to the object to be inspected. The force-applying points of the horizontal force-applying mechanisms are spaced apart in the hinge axial direction. The device also includes at least two sets of displacement sensors with their detection ends horizontally facing the object to be inspected. The detection points of the displacement sensors are spaced apart in the hinge axial direction.

[0007] As a further improvement to the above technical solution: Two sets of horizontal force-applying mechanisms are arranged at intervals along a direction parallel to the hinge axis, and two sets of displacement sensors are arranged at intervals along a direction parallel to the hinge axis. The force-applying points of the two sets of horizontal force-applying mechanisms are located at both ends of the outer edge of the object under inspection along the hinge axis, and the detection points of the two sets of displacement sensors are located at both ends of the outer edge of the object under inspection along the hinge axis.

[0008] The structure of a single horizontal force application mechanism is as follows: it includes a horizontal linear module arranged along the force application direction in the length direction, a lifting cylinder installed at the output of the horizontal linear module, a bracket installed at the output of the lifting cylinder, a force sensor installed on the side of the bracket, and a force application component installed on the side of the force sensor.

[0009] The force-applying component includes a pin holder mounted on a force sensor, on which vertically arranged force-applying pins are mounted, and the force is applied to the object to be inspected by contacting the circumferential wall surface of the force-applying pins.

[0010] The unfolded object to be inspected is horizontally limited on the support platform by the first plate group, and the outer edge of the second plate group, which is far away from the first plate group, protrudes outward from the support platform. The horizontal force application mechanism applies horizontal force to the outer edge of the second plate group in opposite directions, and the displacement sensor detects the displacement of the side of the outer edge of the second plate group.

[0011] The second plate assembly is a frame structure. The force application points of the horizontal force application mechanism are located on the inner and outer sides of the frame structure, and the force is applied simultaneously to the outer edge of the frame structure to form horizontal forces in opposite directions.

[0012] The support platform includes a support platform for a support plate assembly. The top surface of the support platform is horizontally limited by two or more positioning pins, and the support plate assembly has pin holes that match the positioning pins.

[0013] The support platform is also equipped with a prepositioning block installed on a column. The top surface of the prepositioning block is higher than the top surface of the positioning pin. The plate assembly is provided with a mounting groove for the prepositioning block to pass through upward.

[0014] It also includes whether or not there are sensors, which is used to detect whether the object to be inspected is installed on the support platform.

[0015] The work platform has slotted and embedded strip blocks, the length direction of which is parallel to the hinge axis. The support seat of the horizontal force application mechanism and the support seat of the displacement sensor are slidably mounted on the corresponding strip blocks. Multiple locking holes are opened on the work platform on both sides of the strip blocks. The support seat and the support seat are respectively opened with long slots parallel to the corresponding strip blocks. External fasteners pass through the long slots and are locked in the locking holes.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention applies a horizontal force to the hinge via the object under test through a horizontal force-applying mechanism, and detects the displacement change after the force is applied by a displacement sensor. The horizontal free angle can be obtained by combining the detected displacement with the displacement spacing, thus achieving fast and convenient detection, especially suitable for batch detection needs. This utility model also has the following advantages: As the horizontal linear module in the horizontal force application mechanism moves, the force application component comes into contact with the object to be inspected and applies force, and the force sensor monitors the magnitude of the force in real time until the preset force value is reached.

[0017] The first plate assembly of the object to be inspected is horizontally fixed on the support platform. By applying a force perpendicular to the hinge axis to the second plate assembly, the second plate assembly under force tends to deflect relative to the first plate assembly in the horizontal plane. By measuring the displacement of the edge of the second plate assembly that is far away from the first plate assembly, the horizontal free angle of the hinge can be detected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the horizontal force application mechanism of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the support platform of this utility model supporting the object to be inspected.

[0021] Figure 4 This is a schematic diagram of the installation of the displacement sensor on the working platform of this utility model.

[0022] The components include: 1. Working platform; 2. Horizontal force application mechanism; 3. Displacement sensor; 4. Support platform; 5. Object to be inspected; 6. Support. 11. Flexible layer; 12. Strip block; 13. Locking hole; 20. Support base; 21. Motor; 22. Horizontal linear module; 23. Lifting cylinder; 24. Bracket; 25. Force sensor; 26. Pin seat; 27. Force-applying pin; 41. Support platform; 42. Positioning pin; 43. Pre-positioning block; 44. Presence or absence of sensor; 51. Plate group one; 52. Plate group two; 511. Assembly slot; 512. Pin hole; 61. Long groove. Detailed Implementation

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] like Figure 1As shown, this embodiment of a folding screen hinge horizontal free angle detection device includes a working platform 1, on which a support platform 4 supporting the object to be inspected 5 is installed. The object to be inspected 5 includes a first plate group 51 and a second plate group 52 connected by a hinge. At least two sets of horizontal force application mechanisms 2 are installed on the working platform 1 located outside the support platform 4. The horizontal force application mechanisms 2 simultaneously apply a horizontal force perpendicular to the hinge axis and opposite in direction to the object to be inspected 5. The force application points of the horizontal force application mechanisms 2 are spaced apart in the hinge axial direction. The device also includes at least two sets of displacement sensors 3 with their detection ends horizontally facing the object to be inspected 5. The detection points of the displacement sensors 3 are spaced apart in the hinge axial direction.

[0025] In this embodiment, the horizontal force application mechanism 2 applies a horizontal opposite force to the hinge through the object under test 5, and the displacement sensor 3 detects the displacement change after the force is applied, so that the horizontal free angle can be obtained by combining the detected displacement with the displacement spacing.

[0026] In this embodiment, the horizontal force application mechanism 2 applies a horizontal force to the object to be inspected 5 that is perpendicular to the hinge axis and opposite in direction, thereby causing the object to be inspected 5 to deflect in the horizontal plane at the hinge, forming a free angle under a preset force, and the detection of the free angle is achieved by combining the displacement change.

[0027] Two sets of horizontal force-applying mechanisms 2 are spaced apart along a direction parallel to the hinge axis, and two sets of displacement sensors 3 are spaced apart along a direction parallel to the hinge axis. The force-applying points of the two sets of horizontal force-applying mechanisms 2 are located at both ends of the outer edge of the object under inspection 5 along the hinge axis, and the detection points of the two sets of displacement sensors 3 are located at both ends of the outer edge of the object under inspection 5 along the hinge axis.

[0028] In this embodiment, two sets of horizontal force-applying mechanisms 2 apply opposite forces in the horizontal plane, causing the object under test 5 to form a horizontal free angle at the hinge under a preset force. Then, two sets of displacement sensors 3 detect the displacement difference between the two ends. Combined with the distance between the detection points of the two sets of displacement sensors 3, the horizontal free angle is detected.

[0029] like Figure 2 As shown, the structure of the single horizontal force application mechanism 2 is as follows: it includes a horizontal linear module 22 arranged along the force application direction in the length direction, a lifting cylinder 23 installed at the output of the horizontal linear module 22, a bracket 24 installed at the output of the lifting cylinder 23, a force sensor 25 installed on the side of the bracket 24, and a force application component installed on the side of the force sensor 25.

[0030] In this embodiment, as the horizontal linear module 22 in the horizontal force application mechanism 2 moves, the force application component comes into contact with the object to be inspected 5 to apply force. The direction of the force application is the direction of movement of the horizontal linear module 22, and the force sensor 25 monitors the magnitude of the force in real time until the preset force value is reached.

[0031] In this embodiment, the horizontal linear module 22 is supported and installed on the working platform 1 via the support base 20, and the horizontal linear module 22 is driven by the operation of the motor 21.

[0032] The force-applying component includes a pin seat 26 mounted on the force sensor 25, and vertically arranged force-applying pins 27 are mounted on the pin seat 26. The force is applied to the object to be inspected 5 by contacting the circumferential wall surface of the force-applying pins 27.

[0033] In this embodiment, the lifting cylinder 23 drives the force-applying pin 27 to move in the vertical direction. Combined with the action of the horizontal linear module 22, the force-applying pin 27 can make contact with or move away from the object to be inspected 5.

[0034] In this embodiment, the force application to the object 5 is effectively guaranteed by contacting the circumferential wall of the force-applying pin 27 with the object 5 under inspection.

[0035] The unfolded object to be inspected 5 is horizontally limited on the support platform 4 by the first plate group 51. The outer edge of the second plate group 52, which is away from the first plate group 51, protrudes outward from the support platform 4. The horizontal force application mechanism 2 applies horizontal force to the outer edge of the second plate group 52 in opposite directions, and the displacement sensor 3 detects the displacement of the side of the outer edge of the second plate group 52.

[0036] In this embodiment, the first plate group 51 of the object to be inspected 5 is horizontally fixed on the support platform 4. By applying a force perpendicular to the hinge axis to the second plate group 52, the second plate group 52 under force has a tendency to deflect relative to the first plate group 51 in the horizontal plane. By measuring the displacement of the edge of the second plate group 52 away from the first plate group 51, the horizontal free angle of the hinge can be detected.

[0037] Plate group 2 52 is a frame structure. The force application points of the horizontal force application mechanism 2 are located on the inner and outer sides of the frame structure, and the force is applied simultaneously to the outer edge of the frame structure to form horizontal forces in opposite directions, thereby causing plate group 2 52 to deflect in the horizontal plane relative to plate group 1 51 to form a horizontal free angle.

[0038] In actual testing, after the two sets of horizontal force-applying mechanisms 2 apply force and displacement detection in opposite directions through the plate group 2 52, the two sets of horizontal force-applying mechanisms 2 can also apply force in opposite directions to the same force-applying point of the plate group 2 52 according to actual needs, and then perform displacement detection again, thereby realizing the detection of the horizontal free angle of the hinge in two opposite directions.

[0039] In this embodiment, the second plate assembly 52 is set as a frame structure, which facilitates the application of force by the two sets of horizontal force-applying mechanisms 2, and also plays a role in effectively reducing weight and ensuring the detection effect.

[0040] In this embodiment, plate group 2 52 can also be other structures, as long as it can be easily subjected to opposite forces by two sets of horizontal force-applying mechanisms 2.

[0041] like Figure 3 As shown, the support platform 4 includes a support platform 41 for the support plate assembly 51. The top surface of the support platform 41 is horizontally limited by two or more positioning pins 42. The plate assembly 51 is provided with pin holes 512 that match the positioning pins 42, which effectively ensures the reliability of the plate assembly 51 supported on the support platform 41.

[0042] The support platform 41 is also equipped with a prepositioning block 43 via a column. The top surface of the prepositioning block 43 is higher than the top surface of the positioning pin 42. The plate assembly 51 is provided with a mounting groove 511 for the prepositioning block 43 to pass through upward.

[0043] In this embodiment, before the object to be inspected, plate group 51, is mounted on the support platform 41 and fitted with the positioning pin 42, a pre-positioning can be formed by the cooperation of the mounting groove 511 and the pre-positioning block 43, which helps to make the subsequent fitting of the pin hole 512 and the positioning pin 42 quick and accurate.

[0044] It also includes the presence or absence of a sensor 44, which is used to detect whether the object to be inspected 5 is installed on the support platform 41.

[0045] like Figure 4 As shown, a strip block 12 is slotted and embedded on the working platform 1. The length direction of the strip block 12 is parallel to the hinge axis. The support seat 20 of the horizontal force application mechanism 2 and the support 6 of the displacement sensor 3 are slidably fitted onto the corresponding strip block 12. Multiple locking holes 13 are respectively opened on the working platform 1 located on both sides of the strip block 12. The support seat 20 and the support 6 are respectively opened with long grooves 61 parallel to the corresponding strip block 12. The external fastener passes through the long groove 61 and is locked into the locking hole 13.

[0046] In practical use, the fasteners can be loosened, and the positions of the horizontal force application mechanism 2 and the displacement sensor 3 can be adjusted by moving the support base 20 or the support 6 relative to the strip block 12. This adjusts the distance between the two horizontal force application mechanisms 2 and the distance between the two displacement sensors 3, thereby adjusting the distance between the force application points and the distance between the detection points of the object under inspection 5.

[0047] In this embodiment, a flexible layer 11, such as electrostatic adhesive, can also be laid on the top surface of the work platform 1 to help prevent static electricity.

[0048] This invention enables rapid and convenient detection of the horizontal free angle of folding screen hinges, and is especially suitable for batch testing needs.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A device for detecting the horizontal free angle of a folding screen hinge, comprising a working platform (1), characterized in that: The work platform (1) is equipped with a support platform (4) that supports the object to be inspected (5). The object to be inspected (5) includes a plate group one (51) and a plate group two (52) connected by a hinge. At least two sets of horizontal force-applying mechanisms (2) are installed on the work platform (1) located outside the support platform (4). The horizontal force-applying mechanisms (2) simultaneously apply a horizontal force to the object to be inspected (5) that is perpendicular to the hinge axis and opposite in direction. The force-applying points of the horizontal force-applying mechanisms (2) are spaced apart in the hinge axis direction. The work platform (1) also includes at least two sets of displacement sensors (3) with their detection ends horizontally facing the object to be inspected (5). The detection points of the displacement sensors (3) are spaced apart in the hinge axis direction.

2. The horizontal free angle detection device of the folding screen hinge according to claim 1, characterized in that: The horizontal force application mechanism (2) is arranged in two sets at intervals along the direction parallel to the hinge axis, and the displacement sensor (3) is arranged in two sets at intervals along the direction parallel to the hinge axis; the force application points of the two sets of horizontal force application mechanisms (2) are located at both ends of the outer edge of the object to be inspected (5) along the hinge axis, and the detection points of the two sets of displacement sensors (3) are located at both ends of the outer edge of the object to be inspected (5) along the hinge axis.

3. The horizontal free angle detection device of the folding screen hinge according to claim 1 or 2, characterized in that: The structure of the single horizontal force application mechanism (2) is as follows: it includes a horizontal linear module (22) arranged along the force application direction in the length direction, a lifting cylinder (23) installed at the output of the horizontal linear module (22), a bracket (24) installed at the output of the lifting cylinder (23), a force sensor (25) installed on the side of the bracket (24), and a force application component installed on the side of the force sensor (25).

4. The folding screen hinge horizontal free angle detection device as described in claim 3, characterized in that: The force-applying component includes a pin seat (26) installed on the force sensor (25), and a vertically arranged force-applying pin (27) is installed on the pin seat (26). The force-applying pin (27) applies force to the object to be inspected (5) by contacting the circumferential wall surface of the force-applying pin (27).

5. The horizontal free angle detecting device of the folding screen hinge according to claim 1, characterized in that: The unfolded object to be inspected (5) is horizontally limited on the support platform (4) by the first plate group (51). The outer edge of the second plate group (52), which is far away from the first plate group (51), protrudes outward from the support platform (4). The horizontal force application mechanism (2) applies horizontal force to the outer edge of the second plate group (52) in opposite directions, and the displacement sensor (3) detects the displacement of the side of the outer edge of the second plate group (52).

6. The horizontal free angle detecting device of the folding screen hinge according to claim 5, characterized in that: The second plate group (52) is a frame structure. The force application points of the horizontal force application mechanism (2) are located on the inner and outer sides of the frame structure, and the force is applied simultaneously to the outer edge of the frame structure to form horizontal forces in opposite directions.

7. The horizontal free angle detecting device of the folding screen hinge according to claim 5, characterized in that: The support platform (4) includes a support platform (41) of the support plate group (51). The top surface of the support platform (41) is horizontally limited by two or more positioning pins (42). The plate group (51) is provided with pin holes (512) that match the positioning pins (42).

8. The horizontal free angle detecting device of the folding screen hinge according to claim 7, characterized in that: The support platform (41) is also equipped with a prepositioning block (43) via a column. The top surface of the prepositioning block (43) is higher than the top surface of the positioning pin (42). The first plate group (51) is provided with a mounting groove (511) for the prepositioning block (43) to pass through upward.

9. The horizontal free angle detecting device of the folding screen hinge according to claim 7, characterized in that: It also includes the presence or absence of a sensor (44), which is used to detect whether the object to be inspected (5) is installed on the support platform (41).

10. The horizontal free angle detection device of the folding screen hinge according to claim 1, characterized in that: The work platform (1) has slots for embedding strip blocks (12). The length direction of the strip blocks (12) is parallel to the hinge axis. The support seat (20) of the horizontal force application mechanism (2) and the support seat (6) of the displacement sensor (3) are slidably mounted on the corresponding strip blocks (12). Multiple locking holes (13) are opened on the work platform (1) on both sides of the strip blocks (12). The support seat (20) and the support seat (6) are respectively opened with long slots (61) parallel to the corresponding strip blocks (12). The external fasteners pass through the long slots (61) and are locked in the locking holes (13).

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