Temperature and humidity bending endurance testing machine

Abstract

The utility model belongs to the technical field of bending testing machines, and particularly relates to a temperature and humidity bending durability testing machine which comprises an environment box, a temperature and humidity bending durability testing machine body is arranged in the environment box, and a durability testing assembly is installed on the top of the temperature and humidity bending durability testing machine body. A positioning assembly is arranged in the durability test assembly, a fixing assembly is installed at the top of the positioning assembly, a cabinet door switch assembly is arranged on the outer wall of the environment box, a base is fixedly connected to the bottom of the environment box, an electric control cabinet is installed on the side of the base, and an operation panel is arranged at the top of the electric control cabinet. The durability test assembly comprises a high-low temperature servo motor, a first synchronous cog belt, a front turning plate, a second synchronous cog belt and a rear turning plate; according to the utility model, the bending durability test can be conveniently carried out on flexible materials such as a flexible screen, an FPC and the like in a temperature and humidity environment, and the accuracy of test data is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bending test machines, in particular to a temperature and humidity bending durability test machine. Background Art

[0002] The bending tester tests the bending strength of plug lead wires and wires. The test method is to fix the sample on the fixture and add a certain load. During the test, the fixture swings left and right. After a certain number of times, the wire breakage rate is checked; or when the power cannot be supplied, the total number of swings is checked.

[0003] In Chinese Patent 202222513676.3, the utility model relates to the field of graphite sheet testing technology, and specifically discloses a bending resistance test machine, including: a fixed plate; a free wheel, the free wheel is rotatably installed on the upper part of the fixed plate, and is used to fix the upper end of the flexible sheet; a clamping assembly, the clamping assembly is located below the free wheel, and is used to clamp the lower end of the flexible sheet; an active wheel, the clamping assembly is installed on the active wheel, and the active wheel drives the clamping assembly to rotate forward and reverse repeatedly after being driven, so that the flexible sheet is repeatedly bent. The bending resistance test machine provided by the utility model can realize the mechanized bending resistance test of the flexible sheet, which is conducive to improving production efficiency.

[0004] When existing bending testers conduct bending durability tests on flexible materials, most of them directly place the flexible materials in the bending testers for bending tests. However, the use environments of flexible materials are different. The environment in the bending testers does not match the actual working environment. The tested data is different from the actual situation, which affects the actual use of the flexible materials.

[0005] Therefore, in order to solve the above problems, a temperature and humidity bending durability testing machine is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology, the problem that when a bending tester conducts a bending durability test on a flexible material, most of the flexible materials are directly placed in the bending tester for bending test, but the use environment of the flexible material is different, the environment in the bending tester does not match the actual working environment, and the tested data is different from the actual situation.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a temperature and humidity bending and durability testing machine described in the utility model comprises an environmental chamber, a temperature and humidity bending and durability testing machine body is arranged inside the environmental chamber, and a durability testing component is installed on the top of the temperature and humidity bending and durability testing machine body, a positioning component is arranged inside the durability testing component, and a fixing component is installed on the top of the positioning component, a cabinet door switch component is arranged on the outer wall of the environmental chamber, and a base is fixedly connected to the bottom of the environmental chamber, an electric control cabinet is installed on the side of the base, and an operation panel is arranged on the top of the electric control cabinet; the durability testing component comprises a high and low temperature servo motor, a first synchronous toothed belt, a front flap, a second synchronous toothed belt, and a rear flap, the side of the high and low temperature servo motor is movably connected with the first synchronous toothed belt, and the other side of the first synchronous toothed belt is movably connected with the front flap, the outer wall of the first synchronous toothed belt is meshed with the second synchronous toothed belt, and the side of the second synchronous toothed belt is interactively connected with the rear flap.

[0008] Preferably, the rear flap forms a rotating structure through the second synchronous toothed belt, the first synchronous toothed belt, the high and low temperature servo motor and the temperature and humidity bending and endurance testing machine body, and the second synchronous toothed belt and the first synchronous toothed belt are meshed with each other, and the rear flap and the front flap are symmetrically arranged about the vertical center axis of the temperature and humidity bending and endurance testing machine body.

[0009] Preferably, the positioning assembly includes a positioning clamp, a linear slide rail, a clamp limiting rod, a positioning spring, and a fixed block. The outer wall of the positioning clamp is snap-connected with the linear slide rail, and the bottom of the positioning clamp is snap-connected with the clamp limiting rod. The outer wall of the clamp limiting rod is installed with a positioning spring, and one end of the clamp limiting rod is fixedly connected with the fixed block.

[0010] Preferably, the positioning fixture and the linear slide rail form a sliding structure, and the positioning fixture and the fixing block form an elastic structure through a positioning spring, and the positioning fixture and the fixture limiting rod form a clamping structure.

[0011] Preferably, the fixing assembly comprises a fixed sample pressing plate, fixing screws, and a product to be tested. The fixing screws are threadedly connected to the side of the fixed sample pressing plate, and the product to be tested is tightly fitted to the bottom of the fixed sample pressing plate.

[0012] Preferably, the fixing screw forms a threaded detachable structure by fixing the sample pressing plate and the front flap, and the surface of the fixed sample pressing plate is provided with scale marks.

[0013] Preferably, the cabinet door switch assembly includes a cabinet door body, a switch slot, a latch body, a latch spring, and a latch shell. The side of the cabinet door body is provided with a switch slot, and the inner wall of the switch slot is snap-connected with the latch body, the top of the latch body is elastically connected with the latch spring, and the outer wall of the latch spring is snap-connected with the latch shell.

[0014] Preferably, the latch body forms an elastic structure with the latch housing through a latch spring, and the latch body and the switch slot form a snap-fit ​​structure.

[0015] The utility model is beneficial in that:

[0016] 1. The rear flap forms a rotating structure with the second synchronous toothed belt, the first synchronous toothed belt, the high and low temperature servo motor and the temperature and humidity bending durability testing machine body, and the second synchronous toothed belt and the first synchronous toothed belt are meshed with each other, and the rear flap and the front flap are symmetrically arranged about the vertical center axis of the temperature and humidity bending durability testing machine body, which is convenient for adjusting the bending radius of the product under test and can meet the bending test of FPC or flexible screen monomer. The latch body forms an elastic structure with the latch spring and the latch shell, and the latch body and the switch slot form a clamping structure, which is convenient for protecting the safety of the operator and avoiding injury to the operator during operation. It is convenient for flexible materials such as flexible screens and FPCs to perform bending durability tests under temperature and humidity environments to ensure the accuracy of test data.

[0017] 2. The positioning fixture and the linear slide rail form a sliding structure, and the positioning fixture forms an elastic structure through the positioning spring and the fixed block, and the positioning fixture and the fixture limit rod form a clamping structure, which is convenient for positioning the product under test and is beneficial for the installation of the product under test. The fixing screw forms a threaded detachable structure through the fixed sample pressing plate and the front flap, and the surface of the fixed sample pressing plate is provided with scale marks, which is convenient for measuring the width of the product under test and is beneficial for improving data accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall internal three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model as a whole viewed from the front;

[0021] Figure 3It is an enlarged structural schematic diagram of the durability test component of the utility model;

[0022] Figure 4 It is an enlarged structural schematic diagram of the positioning component of the utility model;

[0023] Figure 5 It is an enlarged structural schematic diagram of the fixing component of the utility model;

[0024] Figure 6 It is a schematic diagram of the exploded structure of the cabinet door switch assembly of the utility model.

[0025] In the figure: 1. Environmental chamber; 2. Temperature and humidity bending durability testing machine body; 3. Durability test assembly; 301. High and low temperature servo motor; 302. First synchronous toothed belt; 303. Front flap; 304. Second synchronous toothed belt; 305. Rear flap; 4. Positioning assembly; 401. Positioning fixture; 402. Linear guide rail; 403. Fixing rod of fixture; 404. Positioning spring; 405. Fixing block; 5. Fixing assembly; 501. Fixing sample pressing plate; 502. Fixing screw; 503. Tested product; 6. Door switch assembly; 601. Door body; 602. Switch slot; 603. Latch body; 604. Latch spring; 605. Latch housing; 7. Base; 8. Electric control cabinet; 9. Operation panel. DETAILED DESCRIPTION

[0026] 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.

[0027] Embodiment 1

[0028] See also Figure 1 , Figure 2 As shown, a temperature and humidity bending durability testing machine includes an environmental chamber 1, the temperature range of the environmental chamber 1 is: -40 ~ 150 ° C, the temperature control stability is: ± 0.5 ° C, the temperature distribution uniformity is: ± 2 ° C, the heating rate is: an average of 3 ° C / minute, the cooling rate is: an average of 1 ° C / minute, the humidity range is: 20 ~ 98% / (20 ~ 85 ° C), the inner box size (W * H * D) mm: 1000 * 1000 * 1000, the volume is 1m 3, outer box size (W*H*D) mm (approximately): 1250×2055×1745, total weight: about 800kg, power supply requirement: AC380, MAX, 30A, installed capacity: about 10KW; a temperature and humidity bending and durability testing machine body 2 is arranged inside the environmental box 1, and a durability testing component 3 is installed on the top of the temperature and humidity bending and durability testing machine body 2, a positioning component 4 is arranged inside the durability testing component 3, and a fixing component 5 is installed on the top of the positioning component 4, a cabinet door switch component 6 is arranged on the outer wall of the environmental box 1, and a base 7 is fixedly connected to the bottom of the environmental box 1, an electric control cabinet 8 is installed on the side of the base 7, and an operation panel 9 is arranged on the top of the electric control cabinet 8.

[0029] See also Figure 3 As shown, a temperature and humidity bending durability testing machine, a durability testing component 3, includes a high and low temperature servo motor 301, a first synchronous toothed belt 302, a front flap 303, a second synchronous toothed belt 304, and a rear flap 305. The rear flap 305 forms a rotating structure with the temperature and humidity bending durability testing machine body 2 through the second synchronous toothed belt 304, the first synchronous toothed belt 302, the high and low temperature servo motor 301, and the second synchronous toothed belt 304 and the first synchronous toothed belt 302 are meshed with each other, and the rear flap 305 and the front flap 303 are symmetrically arranged about the vertical center axis of the temperature and humidity bending durability testing machine body 2, so as to facilitate the adjustment of the bending radius of the tested product 503, the bending radius: R1mm-R10mm adjustable, the adjustment accuracy is 0.1mm, the bending angle: 0-180° can be set, the counting range is: 0-999999, which can meet the FPC or flexible screen monomer bending test, and the parallelism accuracy after folding Degree: <0.1mm, the operation panel 9, the electric control cabinet 8 and the PLC are used to communicate, and the high and low temperature servo motor 301 is controlled to drive the first synchronous toothed belt 302 and the front flap 303. The first synchronous toothed belt 302 drives the second synchronous toothed belt 304 and the rear flap 305 to rotate. At this time, the two fixture plates repeatedly fold, the bending speed: 5-60 times / min, which can be adjusted, and the current test speed is displayed on the touch screen, and the tested product 503 fixed on the fixture is subjected to bending test, the operation panel 9 can directly input the test parameters and display the test data, the power supply requirement: AC220V±10%, 50Hz, the equipment power: 800W, all the components of the actuator are resistant to high and low temperatures, and the resistant ambient temperature is: -40~+85℃, and it can be placed in the environmental box 1 for testing, the single-station actuator size: 760×540×450mm (length*width*height), the actuator weight: 40Kg.

[0030] See also Figure 4As shown, a temperature and humidity bending durability testing machine, a positioning assembly 4, includes a positioning fixture 401, a linear slide 402, a fixture limiting rod 403, a positioning spring 404, and a fixed block 405. The positioning fixture 401 and the linear slide 402 form a sliding structure, and the positioning fixture 401 forms an elastic structure with the fixed block 405 through the positioning spring 404, and the positioning fixture 401 and the fixture limiting rod 403 form a snap-fit ​​structure, which is convenient for positioning the tested product 503, which is beneficial to the tested product 50 3, place the product 503 to be tested on the top of the front flap 303 and the rear flap 305, move the positioning fixture 401 horizontally outward, and the positioning spring 404 is extended at this time, so that the product 503 to be tested is stuck in the slot of the positioning fixture 401, and then release the positioning fixture 401, and the positioning fixture 401 moves to the initial position under the elastic action of the positioning spring 404 to position the product 503 to be tested, and the fixture limit rod 403 plays a limiting role to ensure that the positioning fixture 401 can only move horizontally.

[0031] See also Figure 5 As shown, a temperature and humidity bending durability testing machine, a fixing component 5, includes a fixed sample pressing plate 501, a fixing screw 502, and a product to be tested 503. The fixing screw 502 forms a threaded detachable structure with the fixed sample pressing plate 501 and the front flap 303, and the surface of the fixed sample pressing plate 501 is provided with scale marks, which is convenient for measuring the width of the product to be tested 503 and is beneficial to improving data accuracy. The fixed sample pressing plate 501 is used to press the product to be tested 503, and the sample size that can be tested is: ≤220mm (clamping width); ≤200mm (bending direction). Tighten the fixing screw 502 to fix the product to be tested 503. The surface of the fixed sample pressing plate 501 is provided with scale marks, and the width of the product to be tested 503 can be detected.

[0032] See also Figure 6 As shown, a temperature and humidity bending durability testing machine, a cabinet door switch assembly 6, includes a cabinet door body 601, a switch slot 602, a latch body 603, a latch spring 604, and a latch shell 605. The latch body 603 forms an elastic structure with the latch shell 605 through the latch spring 604, and the latch body 603 and the switch slot 602 form a locking structure, which is convenient for protecting the safety of the operator and preventing the operator from being injured during operation. When the cabinet door body 601 is closed, the switch slot 602 is tilted, and the cabinet door body 601 can be directly closed. During the closing process, the latch spring 604 is compressed and contracted. When the latch body 603 reaches the position of the latch spring 604, the latch body 603 and the latch spring 604 are locked under the elastic action of the latch spring 604.

[0033] Working principle: First, the model of the temperature and humidity bending durability testing machine body 2 is BX-1711-2W, and then the product 503 to be tested is placed on the top of the front flap 303 and the rear flap 305, and the positioning fixture 401 is moved horizontally outward. At this time, the positioning spring 404 is extended, so that the product 503 to be tested is stuck in the card slot of the positioning fixture 401, and then the positioning fixture 401 is released. Under the elastic action of the positioning spring 404, the positioning fixture 401 moves to the initial position to position the product 503 to be tested. The fixture limit rod 403 plays a limiting role to ensure that the positioning fixture 401 can only move horizontally. Then, use the fixed sample pressing plate 501 to press the product 503 to be tested, tighten the fixing screws 502 to fix the product 503 to be tested. There are scale marks on the surface of the fixed sample pressing plate 501, which can detect the width of the product 503 to be tested. Then, close the cabinet door body 601 and open it. The locking slot 602 is tilted and can directly close the cabinet door body 601. During the closing process, the latch spring 604 is compressed and contracted. When the latch body 603 reaches the position of the latch spring 604, the latch body 603 is engaged with the latch spring 604 under the elastic action of the latch spring 604. Then, the system uses the operation panel 9, the electric control cabinet 8 and the PLC to communicate and control the high and low temperature servo motor 301 to drive the first synchronous toothed belt 302 and the front flap 303. The first synchronous toothed belt 302 drives the second synchronous toothed belt 304 and the rear flap 305 to rotate. At this time, the two fixture plates repeatedly fold and perform a bending test on the tested product 503 fixed on the fixture. There is an electrical connection between the environmental chamber 1 and the operation panel 9. The operation panel 9 can directly input test parameters and display test data. All components of the actuator are resistant to high and low temperatures and can be placed in the environmental chamber 1 for testing.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A temperature and humidity bending durability testing machine, characterized in that: The invention comprises an environmental chamber (1), wherein a temperature and humidity bending and durability testing machine body (2) is arranged inside the environmental chamber (1), and a durability testing assembly (3) is installed on the top of the temperature and humidity bending and durability testing machine body (2), a positioning assembly (4) is arranged inside the durability testing assembly (3), and a fixing assembly (5) is installed on the top of the positioning assembly (4), a cabinet door switch assembly (6) is arranged on the outer wall of the environmental chamber (1), and a base (7) is fixedly connected to the bottom of the environmental chamber (1), an electric control cabinet (8) is installed on the side of the base (7), and an operation panel (9) is arranged on the top of the electric control cabinet (8); The durability test assembly (3) comprises a high and low temperature servo motor (301), a first synchronous toothed belt (302), a front flap (303), a second synchronous toothed belt (304), and a rear flap (305); the side of the high and low temperature servo motor (301) is movably connected to the first synchronous toothed belt (302), and the other side of the first synchronous toothed belt (302) is movably connected to the front flap (303); the outer wall of the first synchronous toothed belt (302) is meshed with the second synchronous toothed belt (304), and the side of the second synchronous toothed belt (304) is interactively connected to the rear flap (305).

2. A temperature and humidity bending durability testing machine according to claim 1, characterized in that: The rear flap (305) forms a rotating structure with the temperature and humidity bending and endurance testing machine body (2) through the second synchronous toothed belt (304), the first synchronous toothed belt (302), the high and low temperature servo motor (301), and the second synchronous toothed belt (304) and the first synchronous toothed belt (302) are meshed with each other, and the rear flap (305) and the front flap (303) are symmetrically arranged about the vertical center axis of the temperature and humidity bending and endurance testing machine body (2).

3. The temperature and humidity bending durability testing machine according to claim 1, characterized in that: The positioning assembly (4) comprises a positioning fixture (401), a linear slide rail (402), a fixture limiting rod (403), a positioning spring (404), and a fixed block (405); the outer wall of the positioning fixture (401) is snap-connected with the linear slide rail (402), and the bottom of the positioning fixture (401) is snap-connected with the fixture limiting rod (403); the outer wall of the fixture limiting rod (403) is installed with a positioning spring (404), and one end of the fixture limiting rod (403) is fixedly connected with the fixed block (405).

4. The temperature and humidity bending durability testing machine according to claim 3, characterized in that: The positioning clamp (401) and the linear slide rail (402) form a sliding structure, and the positioning clamp (401) forms an elastic structure through a positioning spring (404) and a fixing block (405), and the positioning clamp (401) and the clamp limiting rod (403) form a clamping structure.

5. The temperature and humidity bending durability testing machine according to claim 1, characterized in that: The fixing assembly (5) comprises a fixed sample pressing plate (501), a fixing screw (502), and a product to be tested (503); the fixing screw (502) is threadedly connected to the side of the fixed sample pressing plate (501), and the product to be tested (503) is tightly fitted to the bottom of the fixed sample pressing plate (501).

6. The temperature and humidity bending durability testing machine according to claim 5, characterized in that: The fixing screw (502) forms a threaded detachable structure by fixing the sample pressing plate (501) and the front flap (303), and the surface of the fixed sample pressing plate (501) is provided with scale marks.

7. The temperature and humidity bending durability testing machine according to claim 1, characterized in that: The cabinet door switch assembly (6) comprises a cabinet door body (601), a switch slot (602), a latch body (603), a latch spring (604), and a latch shell (605); the switch slot (602) is arranged on the side of the cabinet door body (601), and the inner wall of the switch slot (602) is snap-connected with the latch body (603); the top of the latch body (603) is elastically connected with the latch spring (604), and the outer wall of the latch spring (604) is snap-connected with the latch shell (605).

8. The temperature and humidity bending durability testing machine according to claim 7, characterized in that: The latch body (603) forms an elastic structure through the latch spring (604) and the latch housing (605), and the latch body (603) and the switch slot (602) form a snap-fit ​​structure.

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