A folding screen hinge Z direction virtual position detection device

Abstract

The utility model discloses a kind of folding screen hinge Z direction virtual position detection devices, including work platform, supporting table of supporting the object to be detected is installed on work platform, the object to be detected includes the board group one, board group two of hinge rotation link, the object to be detected is unfolded and placed on supporting table horizontally;It further includes at least two groups of vertical force applying mechanism, vertical force applying mechanism simultaneously applies the vertical force of opposite direction to the same board group of the object to be detected, and the force point of vertical force applying mechanism is provided with spacing in hinge axial direction;It further includes at least two groups of displacement sensor, and the detection end of displacement sensor is vertically oriented to the board group under stress, and the detection end of displacement sensor is provided with spacing in hinge axial direction;Opposite force in vertical direction is applied to hinge by vertical force applying mechanism through the object to be detected, and displacement change after stress is detected by displacement sensor, so that the Z direction virtual position displacement of hinge can be obtained, realize fast, convenient detection, especially suitable for batch detection demand.

Description

Technical Field

[0001] This utility model relates to the technical field of foldable screen testing equipment, and in particular to a foldable screen hinge Z-axis misalignment detection device. 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] Z-direction virtual displacement is an important performance parameter for evaluating the tensile strength and holding force of the hinge of a folding screen. It is necessary to apply force to the hinge in different directions in the horizontal unfolded state, and judge whether the Z-direction virtual displacement of the hinge is qualified based on the deformation displacement that occurs under the applied force.

[0004] In the current technology, the detection of Z-axis virtual displacement of hinges 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 folding screen hinge Z-axis misalignment detection device, thereby enabling rapid and convenient detection of hinge Z-axis misalignment, which is particularly suitable for batch testing requirements.

[0006] The technical solution adopted in this utility model is as follows: A folding screen hinge Z-axis misalignment detection device includes a working platform with a support table for supporting an object to be inspected. The object to be inspected includes two plate groups, a first plate group and a second plate group, which are rotatably connected by a hinge. The object to be inspected is unfolded and placed horizontally on the support table. The device also includes at least two sets of vertical force-applying mechanisms, which simultaneously apply vertical forces in opposite directions to the same plate group of the object to be inspected. The force-applying points of the vertical force-applying mechanisms are spaced apart in the hinge axial direction. The device also includes at least two sets of displacement sensors, with the detection ends of the displacement sensors vertically facing the plate group subjected to the force. The detection ends of the displacement sensors are spaced apart in the hinge axial direction.

[0007] As a further improvement to the above technical solution: The working platform has a strip-shaped groove, in which a strip-shaped block is embedded. The working platform is slidably fitted with a base and a bottom plate via the strip-shaped block. The base and bottom plate are respectively provided with elongated holes along the direction of the corresponding strip-shaped groove. External fasteners pass through the elongated holes and are locked into the locking holes of the working platform. A support plate is installed on the base, and a displacement sensor is locked on the support plate through another elongated hole perpendicular to the direction of the corresponding elongated hole. A support for a vertical force application mechanism is installed on the bottom plate, and the bottom plate is fitted on the support through another elongated hole perpendicular to the direction of the corresponding elongated hole.

[0008] The vertical force application mechanism is arranged in two sets at intervals along a direction parallel to the hinge axis, and the displacement sensor is arranged in two sets at intervals along a direction parallel to the hinge axis. The two sets of vertical force application mechanisms apply force to the edge of the force plate group of the object to be inspected near the hinge, and the two force application points are located at both ends of the force plate group along the hinge axis. The detection points of the two sets of displacement sensors are located at both ends of the force plate group along the hinge axis.

[0009] The structure of a single vertical force application mechanism is as follows: it includes a support installed on the working platform, a vertical linear module installed on the support, a translation cylinder installed on the output part of the vertical linear module, a bracket installed on the output part of the translation cylinder, and a force application component installed on the top or bottom surface of the bracket via a force sensor.

[0010] The force-applying component includes a pin seat mounted on a force sensor, on which vertically arranged force-applying pins are mounted, and the ends of the force-applying pins contact the force-bearing plate assembly of the object to be inspected.

[0011] The pin seat facing the object to be inspected forms a U-shaped structure with a side opening. Force-applying pins are installed on the upper and lower opposite arms of the U-shaped structure, and the opposite ends of the upper and lower force-applying pins form the force-applying ends.

[0012] The displacement sensor includes sensor one and sensor two, which are positioned above and below the object to be inspected, respectively.

[0013] The support platform includes a support platform one and a support platform two installed at intervals on the working platform. The unfolded object to be inspected is limited to the support platform one by the plate group one. The outer edge of the plate group two, away from the plate group one, extends to form a convex plate, which is placed on the support block of the support platform two. The vertical force application mechanism applies force to the edge of the plate group two along the hinge axis, and the detection end of the displacement sensor faces the edge of the plate group two along the hinge axis.

[0014] The top surface of the support platform is horizontally limited by two or more positioning pins, and the plate assembly is provided with pin holes that match the positioning pins; a prepositioning block is also installed on the support platform via a column, the top surface of the prepositioning block is higher than the top surface of the positioning pin, and the plate assembly is provided with a mounting groove for the prepositioning block to pass through upward.

[0015] It also includes whether there are sensors, which are used to detect whether the object to be inspected is installed on the support platform one; the support platform two is a frame structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a vertical force-applying mechanism to apply a vertical opposite force to the hinge through the object under test, and a displacement sensor to detect the displacement change after the force is applied, thereby obtaining the Z-direction virtual displacement of the hinge, realizing fast and convenient detection, and is especially suitable for batch detection needs; This utility model also has the following advantages: As the vertical linear module in the vertical force application mechanism moves, the force-applying component comes into contact with the force-bearing plate group of 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] By setting the pin seat of the force-applying component in the vertical force-applying mechanism as a U-shaped structure with a side opening, the upward or downward movement direction of the vertical linear module can be switched to use the upper or lower force-applying pin in the U-shaped structure, thereby switching the vertical upward or downward force applied to the object under inspection. Combined with the detection of the displacement sensor, continuous detection of different force-applying directions of the hinge can be achieved.

[0018] The first plate assembly of the object to be inspected is fixed on the support platform. By applying a vertical opposite 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 vertical plane. The Z-axis displacement of the hinge is detected by the displacement sensor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 3 This is a schematic diagram of the vertical force application mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram showing the arrangement of the displacement sensor of this utility model relative to the object to be tested.

[0023] Figure 5 This is a schematic diagram of the installation of the object to be inspected on the support platform.

[0024] The components include: 1. Working platform; 2. Support platform; 3. Object to be inspected; 4. Vertical force application mechanism; 5. Displacement sensor; 11. Strip groove; 12. Locking hole; 21. Support platform one; 22. Sensor present or absent; 23. Support platform two; 211. Positioning pin; 212. Pre-positioning block; 231. Support block; 31. Plate group one; 32. Plate group two; 33. Protruding plate; 311. Assembly groove; 312. Pin hole; 40. Base plate; 41. Support; 42. Vertical linear module; 43. Translation cylinder; 44. Bracket; 45. Force sensor; 46. Force pin; 47. Pin seat; 501, Sensor 1; 502, Sensor 2; 51, Base; 52, Support plate; 511, Elongated hole. Detailed Implementation

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, this embodiment of a folding screen hinge Z-axis misalignment detection device includes a working platform 1, on which a support platform 2 supporting the object to be inspected 3 is mounted. The object to be inspected 3 includes a first plate group 31 and a second plate group 32 connected by a hinge. The object to be inspected 3 is unfolded and placed horizontally on the support platform 2. It also includes at least two sets of vertical force application mechanisms 4, which simultaneously apply vertical forces in opposite directions to the same plate group of the object to be inspected 3. The force application points of the vertical force application mechanisms 4 are spaced apart in the hinge axial direction. It also includes at least two sets of displacement sensors 5, with the detection ends of the displacement sensors 5 vertically facing the plate group subjected to the force. The detection ends of the displacement sensors 5 are spaced apart in the hinge axial direction.

[0027] In this embodiment, the vertical force application mechanism 4 applies a vertical opposite force to the hinge through the object to be inspected 3, and the displacement sensor 5 detects the displacement change after the force is applied, thereby obtaining the Z-direction virtual displacement of the hinge.

[0028] In this embodiment, the vertical force application mechanism 4 applies opposite vertical forces to a certain plate group of the object to be inspected 3 at a certain interval distance, thereby causing the plate group to form a deflection tendency in the vertical plane relative to another plate group at the hinge. Combined with the detection of the displacement sensor 5, the Z-direction virtual displacement is detected.

[0029] like Figure 2 As shown, a strip groove 11 is provided on the working platform 1, and a strip block (omitted in the figure) is embedded in the strip groove 11. The working platform 1 is slidably fitted with a base 51 and a bottom plate 40 via the strip block. The base 51 and the bottom plate 40 are respectively provided with elongated holes 511 along the direction of the corresponding strip groove 11. External fasteners pass through the elongated holes 511 and are locked into the locking holes 12 of the working platform 1.

[0030] In this embodiment, during actual adjustment, the fasteners can be loosened, and the positions of the vertical force application mechanism 4 and the displacement sensor 5 in the corresponding strip block length direction can be adjusted by moving the base 51 or the base plate 40 relative to the strip block.

[0031] A support plate 52 is installed on the base 51, and a displacement sensor 5 is locked onto the support plate 52 through another elongated hole perpendicular to the direction of the corresponding elongated hole 511; a support 41 for a vertical force application mechanism 4 is installed on the base plate 40, and the base plate 40 is fitted onto the support 41 through another elongated hole perpendicular to the direction of the corresponding elongated hole 511.

[0032] exist Figure 1 , Figure 2 In the embodiment shown, the elongated hole 511 and the elongated hole are both holes with their length along the horizontal direction and arranged vertically. After the fastener passes through the elongated hole 511 and the elongated hole, it is locked and fastened with the corresponding threaded hole. The position can be adjusted in the length direction of the elongated hole 511 and the length direction of the elongated hole according to actual needs.

[0033] By combining the adjustment of displacement sensor 5 relative to support plate 52 in the direction of another corresponding elongated hole, and the adjustment of support 41 relative to base plate 40 in the direction of another corresponding elongated hole, the position adjustment of vertical force application mechanism 4 and displacement sensor 5 relative to working platform 1 in the horizontal direction is realized; so that the position adjustment of the force application point and detection point of vertical force application mechanism 4 and displacement sensor 5 relative to the object to be inspected 3 meets the requirements.

[0034] Two sets of vertical force-applying mechanisms 4 are arranged at intervals along a direction parallel to the hinge axis, and two sets of displacement sensors 5 are arranged at intervals along a direction parallel to the hinge axis. The two sets of vertical force-applying mechanisms 4 apply force to the edge of the force plate group of the object to be inspected 3 near the hinge, and the two force-applying points are located at both ends of the force plate group along the hinge axis. The detection points of the two sets of displacement sensors 5 are located at both ends of the force plate group along the hinge axis.

[0035] In this embodiment, two sets of vertical force-applying mechanisms 4 apply opposite vertical forces to cause the object under test 3 to form a Z-direction deflection tendency at the hinge under a preset force. Then, two sets of displacement sensors 5 detect the displacement values ​​at both ends to realize the detection of Z-direction misalignment.

[0036] like Figure 3 As shown, the structure of the single vertical force application mechanism 4 is as follows: it includes a support 41 installed on the working platform 1, a vertical linear module 42 installed on the support 41, a translation cylinder 43 installed on the output part of the vertical linear module 42, a bracket 44 installed on the output part of the translation cylinder 43, and a force application component installed on the top or bottom surface of the bracket 44 via a force sensor 45.

[0037] In this embodiment, as the vertical linear module 42 in the vertical force application mechanism 4 moves, the force application component abuts against the force plate group of the object to be inspected 3 to apply force, and the force sensor 45 monitors the magnitude of the force in real time until the preset force value is reached.

[0038] In this embodiment, the vertical linear module 42 is supported and mounted on the base plate 40 via a support 41. The base plate 40 is mounted on the working platform 1. The position of the vertical linear module 42 relative to the working platform 1 in the horizontal plane is adjusted by the relative movement of the base plate 40 relative to the working platform 1 and the relative movement of the support 41 relative to the base plate 40, and is secured by fasteners. The vertical linear module 42 is driven by the operation of a motor.

[0039] The force-applying component includes a pin seat 47 mounted on the force sensor 45, and a vertically arranged force-applying pin 46 mounted on the pin seat 47. The end of the force-applying pin 46 contacts the force-bearing plate assembly of the object to be inspected 3 and applies force.

[0040] In this embodiment, the force-applying pin 46 is driven to move horizontally by the action of the translation cylinder 43, and combined with the action of the vertical linear module 42, the force-applying pin 46 is brought into contact with or moved away from the object to be inspected 3.

[0041] In this embodiment, the force application to the object 3 is effectively guaranteed by contacting the end of the force-applying pin 46 with the object 3 under inspection.

[0042] The pin seat 47 facing the object to be inspected 3 forms a U-shaped structure with a side opening. Force-applying pins 46 are respectively installed on the upper and lower opposite arms of the U-shaped structure, and the opposite ends of the upper and lower force-applying pins 46 form the force-applying ends.

[0043] In this embodiment, the pin seat 47 of the force-applying component in the vertical force-applying mechanism 4 is set as a U-shaped structure with a side opening. The vertical linear module 42 can switch the upward or downward movement direction to switch the use of the upper and lower force-applying pins 46 in the U-shaped structure, thereby switching the vertical upward or downward force applied to the object to be inspected 3. Combined with the detection of the displacement sensor 5, continuous detection of different force-applying directions of the hinge can be achieved.

[0044] like Figure 4 As shown, the displacement sensor 5 includes sensor 1 501 and sensor 2 502, with the two displacement sensors 5 positioned above and below the object to be inspected 3, respectively.

[0045] In this embodiment, two displacement sensors 5 are respectively supported and installed on the base 51 via corresponding support plates 52. The base 51 is installed on the working platform 1. The position of the displacement sensor 5 relative to the working platform 1 in the horizontal plane is adjusted by the relative movement of the base 51 relative to the working platform 1 and the relative movement of the support plate 52 relative to the base 51, and is fastened by fasteners.

[0046] like Figure 5 As shown, the support platform 2 includes a support platform 1 21 and a support platform 23 that are spaced apart and installed on the work platform 1. The unfolded object to be inspected 3 is limited to the support platform 1 21 by the plate assembly 1 31. The outer edge of the plate assembly 2 32, which is away from the plate assembly 1 31, extends to form a protruding plate 33. The protruding plate 33 is placed on the support block 231 of the support platform 2 23. The vertical force application mechanism 4 applies force to the edge of the plate assembly 2 32 along the hinge axis. The detection end of the displacement sensor 5 faces the edge of the plate assembly 2 32 along the hinge axis.

[0047] In this embodiment, the first plate group 31 of the object to be inspected is fixed on the support platform 2. By applying a vertical opposite force perpendicular to the hinge axis to the second plate group 32, the second plate group 32 under force has a tendency to deflect relative to the first plate group 31 in the vertical plane. The Z-direction virtual displacement of the hinge is detected by the displacement sensor 5.

[0048] The top surface of the support platform 21 is horizontally limited by two or more positioning pins 211. The plate assembly 31 is provided with pin holes 312 that match the positioning pins 211, which effectively ensures the reliability of the plate assembly 31 supported on the support platform 21. The support platform 21 is also equipped with a prepositioning block 212 via a column. The top surface of the prepositioning block 212 is higher than the top surface of the positioning pins 211. The plate assembly 31 is provided with a mounting groove 311 for the prepositioning block 212 to pass through upward.

[0049] In this embodiment, before the object to be inspected, plate group 31, is mounted on support platform 21 and fitted with positioning pin 211, a pre-positioning can be formed by the cooperation of mounting groove 311 and pre-positioning block 212, which helps to facilitate the quick and accurate fitting of pin hole 312 and positioning pin 211.

[0050] It also includes the presence or absence of a sensor 22, which is used to detect whether the object to be inspected 3 is installed on the support platform 1 21; the support platform 23 is a frame structure, which plays a role in effectively reducing weight and ensuring the inspection effect.

[0051] In this embodiment, a flexible layer, such as electrostatic adhesive, can also be applied to the top surface of the work platform 1 to help prevent static electricity.

[0052] This invention enables rapid and convenient detection of the Z-axis virtual displacement of the hinge, and is especially suitable for batch testing needs.

[0053] 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.

[0054] 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 Z-axis misalignment detection device for a folding screen hinge, comprising a working platform (1), characterized in that: The work platform (1) is equipped with a support platform (2) for supporting the object to be inspected (3). The object to be inspected (3) includes a plate group one (31) and a plate group two (32) connected by hinges. The object to be inspected (3) is unfolded and placed horizontally on the support platform (2). It also includes at least two sets of vertical force application mechanisms (4). The vertical force application mechanisms (4) simultaneously apply vertical forces in opposite directions to the same plate group of the object to be inspected (3). The force application points of the vertical force application mechanisms (4) are spaced in the axial direction of the hinge. It also includes at least two sets of displacement sensors (5). The detection end of the displacement sensor (5) is vertically oriented towards the plate group under force. The detection end of the displacement sensor (5) is spaced in the axial direction of the hinge.

2. The Z-axis misalignment detection device for a folding screen hinge as described in claim 1, characterized in that: The working platform (1) is provided with a strip groove (11), and a strip block is embedded in the strip groove (11). The working platform (1) is slidably fitted with a base (51) and a bottom plate (40) via the strip block. The base (51) and the bottom plate (40) are respectively provided with elongated holes (511) along the direction of the corresponding strip groove (11). External fasteners pass through the elongated holes (511) and are locked into the locking holes (12) of the working platform (1). A support plate (52) is installed on the base (51), and a displacement sensor (5) is locked on the support plate (52) through another elongated hole perpendicular to the direction of the corresponding elongated hole (511). A support (41) of a vertical force application mechanism (4) is installed on the bottom plate (40), and the bottom plate (40) is fitted on the support (41) through another elongated hole perpendicular to the direction of the corresponding elongated hole (511).

3. The Z-axis misalignment detection device for a folding screen hinge as described in claim 1, characterized in that: The vertical force application mechanism (4) is arranged in two sets at intervals along the direction parallel to the hinge axis, and the displacement sensor (5) is arranged in two sets at intervals along the direction parallel to the hinge axis; the two sets of vertical force application mechanisms (4) apply force to the edge of the force plate group of the object to be inspected (3) near the hinge, and the two force application points are located at both ends of the force plate group along the hinge axis; the detection points of the two sets of displacement sensors (5) are located at both ends of the force plate group along the hinge axis.

4. A folding screen hinge Z-axis misalignment detection device as described in claim 1 or 3, characterized in that: The structure of the single vertical force application mechanism (4) is as follows: it includes a support (41) installed on the working platform (1), a vertical linear module (42) installed on the support (41), a translation cylinder (43) installed on the output part of the vertical linear module (42), a bracket (44) installed on the output part of the translation cylinder (43), and a force application component installed on the top or bottom surface of the bracket (44) via a force sensor (45).

5. The Z-axis misalignment detection device for a folding screen hinge as described in claim 4, characterized in that: The force-applying component includes a pin seat (47) installed on the force sensor (45), and a vertically arranged force-applying pin (46) is installed on the pin seat (47). The end of the force-applying pin (46) contacts the force-bearing plate assembly of the object to be inspected (3).

6. The Z-axis misalignment detection device for a folding screen hinge as described in claim 5, characterized in that: The pin seat (47) facing the object to be inspected (3) forms a U-shaped structure with a side opening. The upper and lower opposite arms of the U-shaped structure are respectively equipped with force-applying pins (46), and the opposite ends of the upper and lower force-applying pins (46) form the force-applying end.

7. A folding screen hinge Z-axis misalignment detection device as described in claim 1 or 3, characterized in that: The displacement sensor (5) includes sensor one (501) and sensor two (502), with the two displacement sensors (5) positioned above and below the object to be inspected (3).

8. The Z-axis misalignment detection device for a folding screen hinge as described in claim 1, characterized in that: The support platform (2) includes a support platform one (21) and a support platform two (23) installed at intervals on the work platform (1). The unfolded object to be inspected (3) is limited to the support platform one (21) by the plate group one (31). The outer edge of the plate group two (32) away from the plate group one (31) extends to form a convex plate (33). The convex plate (33) is placed on the support block (231) of the support platform two (23). The vertical force application mechanism (4) applies force to the edge of the plate group two (32) along the hinge axis. The detection end of the displacement sensor (5) faces the edge of the plate group two (32) along the hinge axis.

9. The Z-axis misalignment detection device for a folding screen hinge as described in claim 8, characterized in that: The top surface of the support platform (21) is horizontally limited by two or more positioning pins (211). The plate group (31) is provided with pin holes (312) that match the positioning pins (211). The support platform (21) is also equipped with a prepositioning block (212) via a column. The top surface of the prepositioning block (212) is higher than the top surface of the positioning pin (211). The plate group (31) is provided with a mounting groove (311) for the prepositioning block (212) to pass through upward.

10. The Z-axis misalignment detection device for a folding screen hinge as described in claim 8, characterized in that: It also includes whether there is a sensor (22), which is used to detect whether the object to be inspected (3) is installed on the support platform one (21); the support platform two (23) is a frame structure.

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