Flexible circuit board test fixture supporting and positioning structure

Abstract

The utility model relates to the technical field of flexible circuit board detection, and discloses a flexible circuit board test fixture supporting and positioning structure comprising a test box, the outer wall of the test box is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a connecting rod, the connecting rod is slidably connected in the test box, and the air cylinder is fixedly connected with the connecting rod. A fixing block is fixedly connected to one end of the connecting rod, two first fixing columns are fixedly connected to one side of the interior of the fixing block, a second fixing column is rotatably connected to the interior of the connecting strip, a sliding block is fixedly connected to the outer wall of the second fixing column, and the outer wall of the sliding strip is slidably connected to the inner wall of the sliding groove; and a connecting plate is fixedly connected to the interior of the test box. According to the utility model, when the connecting strip rotates, the sliding block is promoted to slide along the inner wall of the sliding strip, and the supporting block is driven to slide in the test box, so that flexible circuit boards of different specifications can be tested, the universality of the jig is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board detection, in particular to a flexible circuit board test fixture support positioning structure. Background Art

[0002] A flexible circuit board test fixture is a device specifically used to test the performance of flexible circuit boards. This fixture is mainly used to detect various parameters of flexible circuit boards, such as electrical properties, mechanical properties, etc., to ensure the quality and reliability of flexible circuit boards.

[0003] The flexible circuit board test fixture support and positioning structure is a structure used to support and position the flexible circuit board during the circuit board test process. Flexible circuit boards are usually thin and bendable, so a special fixture structure is required during testing to ensure the accuracy and stability of the circuit board. The design and manufacture of the flexible circuit board test fixture support and positioning structure components need to take into account the characteristics of the flexible circuit board to ensure that the circuit board can be stably supported during the test to prevent it from deformation or movement, thereby improving the accuracy of the test.

[0004] After searching, the announcement number CN211478541U discloses a test fixture for a flexible circuit board, including a box body and a needle mold mechanism arranged on the box body, the needle mold mechanism includes: a base, which is arranged on the box body; the base is provided with a test card position for placing a flexible circuit board; a flip cover, which is rotatably connected to the base; the flip cover is provided with a probe module corresponding to the test card position, and the probe module is provided with a plurality of round-headed probes; an elastic force adjustment module, which is located between the test card position and the base, and is used to change the distance between the test card position and the base under the action of an external force. The test fixture for a flexible circuit board of the utility model will not cause indentations to the flexible circuit board of the display panel, thereby improving production efficiency.

[0005] However, there are still some shortcomings in the above application and the above patent. For example, in the actual use of the flexible circuit board test fixture support and positioning structure, it is necessary to test flexible circuit boards of different specifications, thereby improving the versatility of the fixture and reducing production costs. The above technology only does not cause indentation on the flexible circuit board of the display panel, thereby improving production efficiency, but cannot test flexible circuit boards of different specifications, does not improve the versatility of the fixture, and increases production costs. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides a flexible circuit board test fixture support and positioning structure, aiming to improve the problem that most current flexible circuit board test fixture support and positioning structures cannot test flexible circuit boards of different specifications, thereby improving the versatility of the fixture and reducing production costs.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a support and positioning structure for a flexible circuit board test fixture, comprising a test box, the outer wall of the test box is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a connecting rod, the connecting rod is slidably connected to the inside of the test box, one end of the connecting rod is fixedly connected to a fixed block, one side of the inner part of the fixed block is fixedly connected to two first fixed columns, the outer wall of the first fixed column is rotatably connected to a connecting strip, the inside of the connecting strip is rotatably connected to a second fixed column, the outer wall of the second fixed column is fixedly connected to a sliding block, a sliding groove is provided inside the sliding block, the interior of the test box is fixedly connected to a sliding bar, the outer wall of the sliding bar is slidably connected to the inner wall of the sliding groove, the interior of the test box is fixedly connected to a connecting plate, and a support assembly is provided on the upper surface of the sliding block.

[0008] Preferably, the support assembly comprises a support block, the lower surface of the support block is fixedly connected to the upper surface of the slider, the upper surface of the support block is fixedly connected to a first vertical rod, and the upper surface of the support block is fixedly connected to a second vertical rod.

[0009] Preferably, a first sliding column is rotatably connected inside the first vertical rod, and an outer wall of the first sliding column is fixedly connected to the inside of the second vertical rod.

[0010] Preferably, the outer wall of the first sliding column is rotatably connected to a first clamping block, and the lower surface of the first clamping block is fixedly connected to a first spring.

[0011] Preferably, the bottom end of the first spring is fixedly connected to the upper surface of the support block, and the interior of the first vertical rod is fixedly connected to a second sliding column.

[0012] Preferably, the outer wall of the second sliding column is fixedly connected to the inside of the second vertical rod, and the outer wall of the second sliding column is rotatably connected to the second clamping block.

[0013] Preferably, a flat block is fixedly connected to the upper surface of the first vertical rod, and a lower surface of the flat block is fixedly connected to the upper surface of the second vertical rod.

[0014] Preferably, a second spring is fixedly connected to the upper surface of the second clamping block, and a top end of the second spring is fixedly connected to the lower surface of the flat block.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, when the connecting bar rotates, the slider is prompted to slide along the inner wall of the slider, thereby driving the support block to slide inside the test box, thereby achieving the effect of testing flexible circuit boards of different specifications, thereby improving the versatility of the fixture and reducing production costs.

[0017] 2. In the utility model, the second spring and the first spring rebound simultaneously to fix the flexible circuit board, thereby achieving the effect of performing a tensile test on the flexible circuit board through a simple structure to obtain key parameters such as tensile strength and elongation of the flexible circuit board.

[0018] 3. In the present invention, the first vertical rod and the second vertical rod play a role in fixing the first sliding column and the second sliding column, thereby ensuring that the flexible circuit board is provided with uniform support during the test, thereby ensuring that the entire surface of the flexible circuit board is properly supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a support and positioning structure of a flexible circuit board test fixture proposed by the utility model;

[0020] Figure 2 A schematic diagram of a fixing block of a support and positioning structure of a flexible circuit board test fixture proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of a slider of a support and positioning structure of a flexible circuit board test fixture proposed by the utility model.

[0022] Figure 4 This is a schematic diagram of a second clamping block of a support and positioning structure of a flexible circuit board test fixture proposed by the utility model.

[0023] Legend:

[0024] 1. Test box; 2. Cylinder; 3. Connecting rod; 4. Fixed block; 5. First fixed column; 6. Connecting strip; 7. Second fixed column; 8. Slider; 9. Slide groove; 10. Slide strip; 11. Support block; 12. First vertical rod; 13. Second vertical rod; 14. First sliding column; 15. Second sliding column; 16. First clamping block; 17. First spring; 18. Second clamping block; 19. Second spring; 20. Flat block; 21. Connecting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-3, the utility model provides an embodiment: a flexible circuit board test fixture support positioning structure, including a test box 1, the outer wall of the test box 1 is fixedly connected to a cylinder 2, the output end of the cylinder 2 is fixedly connected to a connecting rod 3, the connecting rod 3 is slidably connected to the inside of the test box 1, one end of the connecting rod 3 is fixedly connected to a fixed block 4, one side of the inner part of the fixed block 4 is fixedly connected to two first fixed columns 5, the outer wall of the first fixed column 5 is rotatably connected to a connecting strip 6, the inner part of the connecting strip 6 is rotatably connected to a second fixed column 7, the outer wall of the second fixed column 7 is fixedly connected to a slider 8, a slide groove 9 is provided inside the slider 8, a slide bar 10 is fixedly connected to the inside of the test box 1, the outer wall of the slide bar 10 is slidably connected to the inner wall of the slide groove 9, the inside of the test box 1 is fixedly connected to a connecting plate 21, and a support component is provided on the upper surface of the slider 8;

[0027] Specifically, the cylinder 2 is started, and the test box 1 fixes the cylinder 2. The start of the cylinder 2 drives the connecting rod 3 to extend and retract, thereby moving the fixed block 4. During the movement of the fixed block 4, the connecting bar 6 is driven to rotate along the outer wall of the first fixed column 5. Here, the first fixed column 5 fixes and limits the connecting bar 6. Since the second fixed column 7 fixes the connecting bar 6 inside the slider 8, when the connecting bar 6 rotates, it causes the slider 8 to slide along the inner wall of the slide bar 10 and drives the support block 11 to slide inside the test box 1. Here, the test box 1 fixes the slide bar 10 to a certain extent.

[0028] Reference Figure 4 The support assembly includes a support block 11, the lower surface of the support block 11 is fixedly connected to the upper surface of the slider 8, the upper surface of the support block 11 is fixedly connected to a first vertical rod 12, and the upper surface of the support block 11 is fixedly connected to a second vertical rod 13; the first vertical rod 12 is rotatably connected to a first sliding column 14, and the outer wall of the first sliding column 14 is fixedly connected to the inside of the second vertical rod 13; the outer wall of the first sliding column 14 is rotatably connected to a first clamping block 16, and the lower surface of the first clamping block 16 is fixedly connected to a first spring 17;

[0029] Specifically, the support block 11 plays a role of fixed support for the first vertical rod 12 and the second vertical rod 13. The first vertical rod 12 and the second vertical rod 13 here play a role of fixing the first sliding column 14 and the second sliding column 15. The first sliding column 14 plays a role of fixed limitation for the first clamping block 16. When the first clamping block 16 is pressed, it rotates along the outer wall of the first sliding column 14, and the first spring 17 rebounds to generate thrust during the release of the first clamping block 16.

[0030] Reference Figure 4The bottom end of the first spring 17 is fixedly connected to the upper surface of the support block 11, and the interior of the first vertical rod 12 is fixedly connected to the second sliding column 15; the outer wall of the second sliding column 15 is fixedly connected to the interior of the second vertical rod 13, and the outer wall of the second sliding column 15 is rotatably connected to the second clamping block 18; the upper surface of the first vertical rod 12 is fixedly connected to the flat block 20, and the lower surface of the flat block 20 is fixedly connected to the upper surface of the second vertical rod 13; the upper surface of the second clamping block 18 is fixedly connected to the second spring 19, and the top end of the second spring 19 is fixedly connected to the lower surface of the flat block 20;

[0031] Specifically, the upper surface of the second clamp block 18 and the lower surface of the first clamp block 16 are pressed, so that the second clamp block 18 rotates slightly along the outer wall of the second sliding column 15, and the first clamp block 16 rotates slightly along the outer wall of the first sliding column 14. The second clamp block 18 rotates slightly, so that the second spring 19 is compressed. The flat block 20 here plays a role of limiting and fixing the second spring 19. The first spring 17 rotates slightly, so that the first spring 17 is compressed. At this time, the flexible circuit board to be tested is placed between the second clamp block 18 and the first clamp block 16, and the first clamp block 16 and the second clamp block 18 are released. At this time, the second spring 19 and the first spring 17 rebound at the same time to fix the flexible circuit board.

[0032] Working principle: When the structure needs to be used, first start the cylinder 2, and the test box 1 fixes the cylinder 2. The cylinder 2 starts to drive the connecting rod 3 to extend and retract, thereby moving the fixed block 4. During the movement of the fixed block 4, the connecting bar 6 is driven to rotate along the outer wall of the first fixed column 5. Here, the first fixed column 5 fixes and limits the connecting bar 6. Since the second fixed column 7 fixes the connecting bar 6 inside the slider 8, when the connecting bar 6 rotates, it causes the slider 8 to slide along the inner wall of the slide bar 10, thereby driving the support block 11 to slide inside the test box 1 The test box 1 here plays a certain role in fixing the slide bar 10, which can significantly improve the stability of the structure during operation, so as to achieve the test of flexible circuit boards of different specifications, thereby improving the versatility of the fixture and reducing the production cost. When the flexible circuit board needs to be stretched, it is only necessary to press the upper surface of the second clamping block 18 and the lower surface of the first clamping block 16 at the same time, so that the second clamping block 18 rotates slightly along the outer wall of the second sliding column 15, and the first clamping block 16 rotates slightly along the outer wall of the first sliding column 14. Here, the first vertical rod 12 and the second The vertical rod 13 fixes the first sliding column 14 and the second sliding column 15, and the second clamping block 18 rotates slightly to compress the second spring 19. The flat block 20 here limits and fixes the second spring 19, and the first spring 17 rotates slightly to compress the first spring 17. At this time, the flexible circuit board to be tested is placed between the second clamping block 18 and the first clamping block 16, and the first clamping block 16 and the second clamping block 18 are released. At this time, the second spring 19 and the first spring 17 rebound at the same time to fix the flexible circuit board, thereby achieving the effect of performing a tensile test on the flexible circuit board through a simple structure to obtain key parameters such as the tensile strength and elongation of the flexible circuit board. This structure can not only achieve the effect of testing flexible circuit boards of different specifications, thereby improving the versatility of the fixture and reducing the production cost, but also achieve the effect of performing a tensile test on the flexible circuit board through a simple structure to obtain key parameters such as the tensile strength and elongation of the flexible circuit board. In addition, it can also achieve the effect of ensuring that the flexible circuit board is provided with uniform support during the test, thereby ensuring that the entire surface of the flexible circuit board is properly supported.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 protection scope of the present invention.

Claims

1. A flexible circuit board test fixture support and positioning structure, comprising a test box (1), characterized in that: The outer wall of the test box (1) is fixedly connected to a cylinder (2), the output end of the cylinder (2) is fixedly connected to a connecting rod (3), the connecting rod (3) is slidably connected to the inside of the test box (1), one end of the connecting rod (3) is fixedly connected to a fixing block (4), one side of the inside of the fixing block (4) is fixedly connected to two first fixing columns (5), the outer wall of the first fixing column (5) is rotatably connected to a connecting strip (6), the inside of the connecting strip (6) is rotatably connected to a second fixing column (7), the outer wall of the second fixing column (7) is fixedly connected to a sliding block (8), a sliding groove (9) is provided inside the sliding block (8), the inside of the testing box (1) is fixedly connected to a sliding bar (10), the outer wall of the sliding bar (10) is slidably connected to the inner wall of the sliding groove (9), the inside of the testing box (1) is fixedly connected to a connecting plate (21), and a supporting assembly is provided on the upper surface of the sliding block (8).

2. A flexible circuit board test fixture support and positioning structure according to claim 1, characterized in that: The support assembly comprises a support block (11), the lower surface of the support block (11) is fixedly connected to the upper surface of the slider (8), the upper surface of the support block (11) is fixedly connected to a first vertical rod (12), and the upper surface of the support block (11) is fixedly connected to a second vertical rod (13).

3. A flexible circuit board test fixture support and positioning structure according to claim 2, characterized in that: The first vertical rod (12) is rotatably connected to a first sliding column (14), and the outer wall of the first sliding column (14) is fixedly connected to the inside of the second vertical rod (13).

4. A flexible circuit board test fixture support and positioning structure according to claim 3, characterized in that: The outer wall of the first sliding column (14) is rotatably connected to a first clamping block (16), and the lower surface of the first clamping block (16) is fixedly connected to a first spring (17).

5. A flexible circuit board test fixture support and positioning structure according to claim 4, characterized in that: The bottom end of the first spring (17) is fixedly connected to the upper surface of the support block (11), and the interior of the first vertical rod (12) is fixedly connected to a second sliding column (15).

6. A flexible circuit board test fixture support and positioning structure according to claim 5, characterized in that: The outer wall of the second sliding column (15) is fixedly connected to the inside of the second vertical rod (13), and the outer wall of the second sliding column (15) is rotatably connected to the second clamping block (18).

7. The flexible circuit board test fixture support and positioning structure according to claim 5, characterized in that: A flat block (20) is fixedly connected to the upper surface of the first vertical rod (12), and a lower surface of the flat block (20) is fixedly connected to the upper surface of the second vertical rod (13).

8. The flexible circuit board test fixture support and positioning structure according to claim 6, characterized in that: A second spring (19) is fixedly connected to the upper surface of the second clamping block (18), and the top end of the second spring (19) is fixedly connected to the lower surface of the flat block (20).

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