Spacing-adjustable U-shaped bending jig

Abstract

The utility model discloses a spacing-adjustable U-shaped bending jig which comprises a first turnover plate, a second turnover plate, a turnover plate limiting mechanism, a turnover synchronizing mechanism and a base, and the upper end and the lower end of the first turnover plate and the upper end and the lower end of the second turnover plate are each provided with a limiting module matched with the turnover plate limiting mechanism. The turnover plate limiting mechanism is used for limiting the first turnover plate and the second turnover plate to achieve relative turnover movement, and the turnover synchronizing mechanism is used for achieving synchronous turnover of the first turnover plate and the second turnover plate. The sliding mechanism is arranged on the base and located below the first turnover plate and the second turnover plate, and the sliding mechanism is used for driving the first turnover plate and the second turnover plate to slide relatively. According to the utility model, the jig cost of screen testing can be reduced, tedious replacement steps in the using process are reduced, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible screen testing fixtures, in particular to a U-shaped bending fixture with adjustable spacing. Background Art

[0002] With the continuous advancement of smartphone technology, foldable screen phones, as an emerging technological trend, are gaining more and more attention from the market and favor from users. Through the application of flexible display screens, foldable screen phones have achieved a significant expansion of the screen and improved portability of the device, bringing users a better audio-visual experience and multi-tasking capabilities. However, the structural design and manufacturing process of the foldable screen are complex, especially the folding part is prone to wear and tear during frequent use. Therefore, ensuring the durability and reliability of foldable screen phones has become an important issue that manufacturers need to solve urgently.

[0003] The testing of folding screens is a key link in the production process, which is directly related to the quality of the product and the user experience. At present, the testing of folding screens in the market mainly focuses on mechanical fatigue testing, display damage testing and electrical performance testing. Among them, the mechanical fatigue test evaluates the durability and reliability of the folding screen by simulating the user's opening and closing operations on the folding screen in daily use. In order to achieve effective mechanical fatigue testing, the folding jig (ie, test fixture) came into being. The main function of the folding jig is to fix the folding screen mobile phone, and perform repeated folding and unfolding operations through a mechanical arm or other drive device to simulate the folding action in actual use. By using a folding jig, a large number of folding times can be completed in a short period of time, thereby quickly evaluating the durability of the product.

[0004] Therefore, designing a folding fixture that is efficient, stable, accurate and non-destructive to folding screen mobile phones is of great significance for improving the testing efficiency and reliability of folding screen mobile phones. For example, the Chinese utility model patent with announcement number CN217704684U discloses a folding fixture for a U-shaped flexible folding screen, including two screen-attaching plates, a folding mechanism, a limiting pad and a mounting mechanism, the folding mechanism connects the two screen-attaching plates, the folding mechanism includes a gear linkage mechanism, the gear linkage mechanism includes two meshing gears, the mounting mechanism is used to install the folding mechanism, and a compensation rod is arranged on the gear; a gap is arranged between the two screen-attaching plates, and installation spaces are reserved on both sides of the screen-attaching plates, the installation space is connected to the gap, the folding mechanism also includes a compensation bar, the compensation bar is arranged in the installation space and connected to the screen-attaching plates, the compensation bar is connected to the compensation bar, and the compensation bar is used to provide angle compensation and displacement compensation between the gear and the screen-attaching plates during the flipping of the screen-attaching plates. When the folding fixture is folded, the limiting pad limits the two screen-attaching plates from continuing to approach each other, so that the two screen-attaching plates are in a parallel state, which has the effect of making the folding radius of the flexible screen reach R1 or less. However, when this technical solution tests different screen spacings, it is necessary to design multiple specific fixtures with different spacings for testing, which increases the fixture cost; at the same time, there are cumbersome replacement steps when performing different spacing tests on different fixtures, which reduces the test efficiency. Utility Model Content

[0005] The utility model provides a U-shaped bending fixture with adjustable spacing, aiming to solve the problems of high fixture cost and low testing efficiency when testing folding screens with different spacings in the prior art.

[0006] In order to solve the above technical problems, the U-shaped bending fixture proposed in the utility model includes a first flip plate, a second flip plate, a flip plate limiting mechanism, a flip synchronization mechanism and a base. The upper and lower ends of the first flip plate and the second flip plate are provided with limiting modules that cooperate with the flip plate limiting mechanism. The flip plate limiting mechanism is used to limit the relative flipping movement of the first flip plate and the second flip plate, and the flip synchronization mechanism is used to realize the synchronous flipping of the first flip plate and the second flip plate; it also includes a sliding mechanism arranged on the base and located under the first flip plate and the second flip plate, and the sliding mechanism is used to drive the first flip plate and the second flip plate to slide relative to each other.

[0007] Preferably, the sliding mechanism is a forward and reverse slide, a first sliding block, a second sliding block and a driving slide rod arranged on both sides of the base, the forward and reverse slide are relatively fixed on both sides of the base, the first sliding block and the second sliding block are respectively fixedly connected to the corresponding flip plate limiting mechanisms, and the driving slide rod sequentially passes through the forward and reverse slide, the first sliding block, the second sliding block and the forward and reverse slide to drive the first sliding block and the second sliding block to move relative to each other.

[0008] Preferably, one end of the driving slide rod is fixedly connected to a manual knob for manually adjusting the rotation of the driving slide rod.

[0009] Preferably, the flip plate limiting mechanism is a flip plate limiting slide groove, including a first slide groove group and a second slide groove group, and the limiting module is a slider that cooperates with the first slide groove group and the second slide groove group.

[0010] Preferably, there are two groups of flipping synchronization mechanisms.

[0011] Preferably, a gear seat is fixedly provided on the base, a pair of mutually meshing synchronous gears are provided in the gear seat, a transmission base is fixedly connected to the synchronous gear, the transmission base is fixedly connected to a transmission rod, the internal cross-sections of the first flip plate and the second flip plate are rotatably connected to a transmission block, and the transmission rod is sleeved on the transmission block.

[0012] Preferably, a scale for reading the distance between the first sliding block and the second sliding block is provided on the base.

[0013] Preferably, a guide rail for guiding the movement direction of the first sliding block and the second sliding block is fixedly arranged between the forward and reverse sliding tables, and the guide rail is sleeved inside the first sliding block and the second sliding block.

[0014] Preferably, there are two guide rails which are arranged parallel to each other.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] The U-shaped bending fixture proposed by the utility model can adjust the spacing between the first sliding block and the second sliding block synchronously, thereby adjusting the spacing between the first flip plate and the second flip plate after flipping and folding, and can observe the state of the screen product at different closed spacings to test the performance of the screen at various spacing states. Using one fixture can realize the testing of screens with different closed spacings, which can reduce the fixture cost of screen testing and reduce the cumbersome replacement steps during use, thereby improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the fixture of the utility model;

[0018] Figure 2 This is a schematic diagram of the flip plate limiting mechanism and the base structure according to the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the sliding mechanism described in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the flip synchronization mechanism and the flip plate according to the embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the flip synchronization mechanism described in the embodiment of the utility model.

[0022] Figure numerals: 1. first flip plate; 2. second flip plate; 3. flip plate limiting mechanism; 31. first slide groove group; 32. second slide groove group; 4. flip synchronization mechanism; 41. synchronization gear; 42. transmission base; 43. transmission rod; 44. transmission block; 5. base; 51. gear seat; 6. forward and reverse slide; 7. first sliding block; 8. second sliding block; 9. driving slide rod; 10. manual knob; 11. guide rail. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the application and with reference to the accompanying drawings.

[0024] See also Figure 1-5 The U-shaped bending fixture with adjustable spacing described in this embodiment includes a first flip plate 1, a second flip plate 2, a flip plate limiting mechanism 3, a flip synchronization mechanism 4 and a base 5. The first flip plate 1 and the second flip plate 2 are both provided with limiting modules that cooperate with the flip plate limiting mechanism 3 at the upper and lower ends. The flip plate limiting mechanism 3 is used to limit the first flip plate 1 and the second flip plate 2 to achieve relative flipping movement. The first flip plate 1 and the second flip plate 2 have the same flip axis. The flip synchronization mechanism 4 is used to achieve synchronous flipping of the first flip plate 1 and the second flip plate 2; the fixture described in this embodiment also includes a sliding mechanism arranged on the base 5 and located under the first flip plate 1 and the second flip plate 2, and the sliding mechanism is used to drive the first flip plate 1 and the second flip plate 2 to slide relative to each other.

[0025] In the utility model, the sliding mechanism is specifically a forward and reverse slide 6, a first sliding block 7, a second sliding block 8 and a driving slide rod 9 arranged on both sides of the base 5. The forward and reverse slide 6 is relatively fixed on both sides of the base 5 to provide support for the driving slide rod 9. The first sliding block 7 and the second sliding block 8 are respectively fixedly connected to the corresponding flip plate limiting mechanism 3. The driving slide rod 9 passes through the forward and reverse slide 6, the first sliding block 7, the second sliding block 8 and the forward and reverse slide 6 in sequence to drive the first sliding block 7 and the second sliding block 8 to move relative to each other. The two ends of the driving slide rod 9 are respectively arranged on the two forward and reverse slides 6 and can rotate freely. When rotating, it drives the first sliding block 7 and the second sliding block 8 to move relative to each other along the direction of the driving slide rod 9.

[0026] One end of the driving slide bar 9 is fixedly connected with a manual knob 10 for manually adjusting the rotation of the driving slide bar. When the knob 10 is rotated, the knob drives the driving slide bar to rotate, thereby driving the first sliding block 7 and the second sliding block 8 to move relative to each other along the driving slide bar direction.

[0027] The flip plate limiting mechanism 3 is a flip plate limiting slide, including a first slide group 31 and a second slide group 32, wherein the first slide group 31 corresponds to the first flip plate 1, is arranged in pairs, and is respectively arranged on the upper and lower sides of the first flip plate 1, and the upper and lower sides of the first flip plate 1 are respectively provided with sliders corresponding to the slides of the first slide group 31, and the sliders cooperate with the slides to make the first flip plate 1 flip around the flip axis; the second slide group 32 corresponds to the second flip plate 2, is also arranged in pairs, and is respectively arranged on the upper and lower sides of the second flip plate 2, and the upper and lower sides of the second flip plate 1 are respectively provided with sliders corresponding to the slides of the second slide group 32, and the sliders cooperate with the slides to make the second flip plate 2 flip around the flip axis. The limiting module is a slider that cooperates with the first slide group 31 and the second slide group 32.

[0028] In a preferred embodiment of the present invention, considering the synchronization stability and system complexity, the flip synchronization mechanism 4 is provided with two groups, which are arranged along the flip axis direction. In other embodiments of the present invention, the flip synchronization mechanism 4 can be provided with other numbers according to different needs, such as one group, three groups, four groups or five groups.

[0029] In a preferred embodiment of the utility model, the setting of the flip synchronization mechanism 4 is specifically as follows: a gear seat 51 is fixedly provided on the base 5, a pair of mutually meshing synchronization gears 41 are provided in the gear seat 51, and the synchronization gear 41 can rotate freely in the gear seat 51, a transmission base 42 is fixedly connected to the synchronization gear 41, and the transmission base 42 is driven to move when the synchronization gear 41 rotates, and the transmission base 42 is fixedly connected to a transmission rod 43, and the transmission base 42 drives the transmission rod 43 to move around the rotation center of the synchronization gear 41 when the transmission base 42 moves, and the first flip plate 1 and the second flip plate 2 are rotatably connected to a transmission block 44 in the internal section, each flip plate is provided with a groove for accommodating the flip synchronization mechanism 4, and a connecting block is fixedly provided on the ground of each flip plate, and the transmission block is rotatably connected to the connecting block, and the transmission rod 43 is sleeved on the transmission block 44. Since the gear base 51 is fixed on the base 5, when the distance between the two flip plates is adjusted, the displacement of the two flip plates relative to the base 5 is achieved by sleeves of the transmission rod 43 and the transmission block 44.

[0030] The base 5 is provided with a scale for reading the distance between the first sliding block 7 and the second sliding block 8, such as Figure 3 As shown, the scale is set on the straight beam closest to the first sliding block 7 and the second sliding block 8.

[0031] like Figure 3 As shown, a guide rail 11 for guiding the movement direction of the first sliding block 7 and the second sliding block 8 is also fixedly arranged between the forward and reverse slides 6, and the guide rail 11 is sleeved in the first sliding block 7 and the second sliding block 8. In a preferred embodiment of the utility model, the number of the guide rails 11 is two and they are arranged parallel to each other and parallel to the driving slide rod 9.

[0032] The workflow of this embodiment is as follows:

[0033] Lay the first flip plate 1 and the second flip plate 2 flat, place the flexible screen to be tested on the first flip plate 1 and the second flip plate 2, and after fixing the flexible screen to be tested, external force drives the first flip plate 1 and the second flip plate 2 to flip around the flip axis until the first flip plate 1 and the second flip plate 2 flip 90° and stop. Then manually rotate the manual knob 10 of the jig to drive the first sliding block 7 and the second sliding block 8 to move relative to each other. Since the first sliding block 7 and the second sliding block 8 are fixedly connected to the first slide groove group 31 and the second slide groove group 32 respectively, the first slide groove group 31 and the second slide groove group 32 also move relative to each other along the direction of the driving slide rod 9, driving the first flip plate 1 connected thereto away from or close to the second flip plate 2, so as to adjust the spacing between the first flip plate 1 and the second flip plate 2.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A U-shaped bending fixture with adjustable spacing, comprising a first flip plate (1), a second flip plate (2), a flip plate limiting mechanism (3), a flip synchronization mechanism (4) and a base (5), wherein the first flip plate (1) and the second flip plate (2) are provided with limiting modules cooperating with the flip plate limiting mechanism (3) at both upper and lower ends, the flip plate limiting mechanism (3) is used to limit the first flip plate (1) and the second flip plate (2) from realizing relative flipping movement, and the flip synchronization mechanism (4) is used to realize synchronous flipping of the first flip plate (1) and the second flip plate (2); characterized in that: It also comprises a sliding mechanism which is arranged on the base (5) and is located below the first flip plate (1) and the second flip plate (2), wherein the sliding mechanism is used to drive the first flip plate (1) and the second flip plate (2) to slide relative to each other.

2. The U-shaped bending fixture with adjustable spacing according to claim 1 is characterized in that: The sliding mechanism comprises a forward and reverse sliding table (6), a first sliding block (7), a second sliding block (8) and a driving sliding rod (9) which are arranged on both sides of the base (5); the forward and reverse sliding table (6) is relatively fixed on both sides of the base (5); the first sliding block (7) and the second sliding block (8) are respectively fixedly connected to the corresponding flip plate limiting mechanism (3); the driving sliding rod (9) passes through the forward and reverse sliding table (6), the first sliding block (7), the second sliding block (8) and the forward and reverse sliding table (6) in sequence, so as to drive the first sliding block (7) and the second sliding block (8) to move relative to each other.

3. The U-shaped bending fixture with adjustable spacing according to claim 2 is characterized in that: One end of the driving slide bar (9) is fixedly connected to a manual knob (10) for manually adjusting the rotation of the driving slide bar.

4. The U-shaped bending fixture with adjustable spacing according to claim 1, characterized in that: The flip plate limiting mechanism (3) is a flip plate limiting slide groove, comprising a first slide groove group (31) and a second slide groove group (32), and the limiting module is a sliding block that cooperates with the first slide groove group (31) and the second slide groove group (32).

5. The U-shaped bending fixture with adjustable spacing according to claim 1, characterized in that: The turning synchronization mechanism (4) consists of two groups.

6. The U-shaped bending fixture with adjustable spacing according to claim 1 or 5, characterized in that: A gear seat (51) is fixedly arranged on the base (5), a pair of mutually meshing synchronous gears (41) are arranged inside the gear seat (51), a transmission base (42) is fixedly connected to the synchronous gear (41), the transmission base (42) is fixedly connected to a transmission rod (43), the first flip plate (1) and the second flip plate (2) are rotatably connected to a transmission block (44) in their internal sections, and the transmission rod (43) is sleeved on the transmission block (44).

7. The U-shaped bending fixture with adjustable spacing according to claim 1, characterized in that: The base (5) is provided with a scale for reading the distance between the first sliding block (7) and the second sliding block (8).

8. The U-shaped bending fixture with adjustable spacing according to claim 2, characterized in that: A guide rail (11) for guiding the movement direction of the first sliding block (7) and the second sliding block (8) is also fixedly arranged between the forward and reverse sliding tables (6); the guide rail (11) is sleeved inside the first sliding block (7) and the second sliding block (8).

9. The U-shaped bending fixture with adjustable spacing according to claim 8, characterized in that: The guide rails (11) are two in number and are arranged parallel to each other.

Images