New energy automobile power battery structural adhesive tensile strength detection device

Abstract

The utility model discloses a new energy automobile power battery structural adhesive tensile strength detection device, and particularly relates to the field of battery structural adhesive detection.The new energy automobile power battery structural adhesive tensile strength detection device comprises a test box, the left side and the right side of the interior of the test box are jointly and fixedly connected with a sliding rail, and the left side and the right side of the exterior of the sliding rail are respectively provided with movable moving blocks which are in mirror symmetry; and a clamping mechanism is arranged at the top of the moving block. Firstly, two moving blocks are moved to ensure a proper distance between the two moving blocks, then a to-be-tested structural adhesive sample is accurately cut and placed between two clamping mechanisms, and then two second air cylinders are started respectively; the output end of the second air cylinder shrinks to drive the turning clamping plates on the two sides to turn inwards with the position of the rotating rod as the circle center through the driving rod, and the inner sides of the right side ends of the turning clamping plates fixedly clamp the structural adhesive sample. Therefore, the effect of conveniently clamping the structural adhesive sample before testing is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery structure glue detection technical field, concretely is a new energy automobile power battery structure glue tensile strength detection device. BACKGROUND

[0002] The new energy automobile power battery structure glue tensile strength detection device is a kind of equipment specially used to test the tensile property of structure glue in power battery.The device can simulate the tensile stress that power battery can be subjected to in actual use, and obtain the tensile strength, breaking elongation and other key performance indicators of structure glue by accurate measurement and analysis.

[0003] Before battery structure glue tensile detection, battery structure glue needs to be fixed on detection device, and detection device usually fixes battery structure glue sample by manually tightening fixing device, which is more troublesome in operation, increases detection time, and further affects detection effect, therefore, the present application provides a new energy automobile power battery structure glue tensile strength detection device to solve the problems in the above background technology. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a new energy automobile power battery structure glue tensile strength detection device, to achieve the effect of facilitating clamping before structure glue stretching.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A new energy automobile power battery structure glue tensile strength detection device, comprising a test box, the inside left and right sides of the test box are fixedly connected with slide rails, the outside left and right sides of the slide rails are respectively provided with mirror image symmetry and movable moving blocks, the top of the moving block is provided with a clamping mechanism, the clamping mechanism comprises a bearing plate fixedly connected to the top of the moving block, the top of the bearing plate is rotatably connected with rotating rods on the front and rear sides, and the rotating rods are fixedly connected with reversible turning clamps.

[0007] As a further scheme of the utility model: the top left side of the bearing plate is fixedly connected with a connecting frame, the right side of the connecting frame is fixedly connected with a second air cylinder, the output end of the second air cylinder is fixedly connected with a connecting block, the front and rear sides of the connecting block are hinged with driving rods through hinges, and the other side of the driving rod is hinged with corresponding turning clamp through hinges.

[0008] As a further scheme of the utility model: the turning clamp on one side is provided with a force value sensor.

[0009] As a further improvement of this utility model: a pressing sheet is provided on the inner side of the turning clamp, and the pressing sheet is made of rubber.

[0010] As a further improvement of this utility model: the slide rail is in the shape of an "I"; a sliding groove is provided on the front of the moving block, the sliding groove passes through the moving block, and guide rollers are rotatably connected to the upper and lower sides of the sliding groove through rotating rods, the guide rollers are rollingly connected to the inner side of the slide rail, and the width of the guide rollers is adapted to the inner width of the slide rail.

[0011] As a further embodiment of this utility model: the tensile mechanism includes a first cylinder fixedly connected to the bottom side inside the test chamber, a lifting block fixedly connected to the output end of the first cylinder, a pair of clamping blocks fixedly connected to the left and right sides of the lifting block respectively, and a connecting rod rotatably connected between the pair of clamping blocks on the same side through a movable shaft; a pair of clamping plates fixedly connected to the bottom of the moving block, and the inner sides of the pair of clamping plates rotatably connected to the outer ends of the corresponding connecting rods through a movable shaft.

[0012] As a further embodiment of this utility model: a displacement sensor transmitter is installed on the right side of the movable block on the left, and a displacement sensor receiver is installed on the left side of the movable block on the right; a controller is installed on the front of the test chamber, and the controller is electrically connected to the displacement sensor transmitter, the displacement sensor receiver, and the force sensor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This tensile strength testing device for structural adhesive in new energy vehicle power batteries first moves two moving blocks to ensure a suitable distance between them. Then, the structural adhesive sample to be tested is precisely cut and placed between two clamping mechanisms. Next, two second cylinders are activated, causing their output ends to retract and drive rods to rotate the two side-mounted turning clamps inward around the position of the rotating rod, thus fixing the structural adhesive sample firmly in place on the inner right side of the turning clamps. This achieves the effect of easy clamping of the structural adhesive sample before testing.

[0015] Furthermore, this tensile strength testing device for the structural adhesive of new energy vehicle power batteries activates the first cylinder via an external power source. The output end of the first cylinder drives the lifting block to extend upwards, which in turn drives the two moving blocks on both sides to move in opposite directions via a connecting rod. This, in turn, causes the two clamping mechanisms to move in opposite directions, performing bidirectional stretching on the structural adhesive sample. The stretching distance of the structural adhesive sample is controlled by the extension distance of the first cylinder, thus achieving the effect of stretching the structural adhesive sample. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a device for testing the tensile strength of structural adhesive for power batteries in new energy vehicles.

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of a device for testing the tensile strength of structural adhesive for power batteries in new energy vehicles.

[0018] Figure 3 This is a schematic diagram of the clamping mechanism in a tensile strength testing device for structural adhesive of power battery for new energy vehicles.

[0019] Figure 4 This is a schematic diagram of the right side of the moving block in a device for testing the tensile strength of structural adhesive for power batteries in new energy vehicles.

[0020] In the diagram: 10. Test chamber; 11. Controller; 12. Slide rail; 13. Moving block; 131. Sliding groove; 132. Guide roller; 20. Tensioning mechanism; 201. First cylinder; 202. Lifting block; 203. Clamping block; 204. Connecting rod; 205. Clamping piece; 206. Displacement sensor transmitter; 207. Displacement sensor receiver; 30. Clamping mechanism; 301. Bearing plate; 302. Rotating rod; 303. Turning clamping plate; 304. Pressing piece; 305. Force sensor; 306. Driving rod; 307. Connecting frame; 308. Second cylinder; 309. Connecting block. Detailed Implementation

[0021] like Figure 1 , 2 As shown, a tensile strength testing device for structural adhesive of power battery for new energy vehicles includes a test chamber 10. The test chamber 10 has slide rails 12 fixedly connected to the left and right sides of the interior. The slide rails 12 have mirror-symmetrical and movable blocks 13 on the left and right sides of the exterior. The top of the movable blocks 13 is provided with a clamping mechanism 30.

[0022] refer to Figure 2 , 3 The clamping mechanism 30 includes a support plate 301 fixedly connected to the top of the moving block 13. Rotating rods 302 are rotatably connected to the front and rear sides of the top of the support plate 301, and a flip-out turning clamp 303 is fixedly connected to the rotating rods 302.

[0023] For details, please refer to Figure 3 A connecting frame 307 is fixedly connected to the top left side of the bearing plate 301. A second cylinder 308 is fixedly connected to the right side of the connecting frame 307. A connecting block 309 is fixedly connected to the output end of the second cylinder 308. A driving rod 306 is hinged to the front and rear sides of the connecting block 309 through a hinge. The other side of the driving rod 306 is hinged to the corresponding side turning clamp 303 through a hinge.

[0024] Preferably, a force sensor 305 is installed on the front-side turning clamp 303. When the moving block 13 moves to stretch the structural adhesive sample, the force sensor 305 is used to monitor and record the change in force acting on the sample in real time. In this device, the structural adhesive sample is subjected to bidirectional tensile testing. Since the sample is subjected to forces in two directions simultaneously, two independent force sensors 305 are needed to measure the force values ​​in these two directions respectively. Moreover, the two force sensors 305 can independently measure the force values ​​in the two directions, ensuring the accuracy and reliability of the test results.

[0025] In use, first, move the two moving blocks 13 to ensure a suitable distance between them. Then, precisely cut the structural adhesive sample to be tested and place it between the two clamping mechanisms 30. Next, activate the two second cylinders 308. The output end of the second cylinder 308 retracts, driving the rotating rod 306 to rotate the two turning clamps 303 inward around the position of the rotating rod 302, thus fixing the structural adhesive sample in place on the inner side of the right end of the turning clamp 303. This achieves the effect of fixing the structural adhesive sample before testing.

[0026] Preferably, a pressing sheet 304 is provided on the inner side of the turning clamp 303. The pressing sheet 304 is made of rubber and has anti-slip properties. In use, the pressing sheet 304 contacts the surface of the battery structural adhesive sample, increasing the fixing effect on the battery structural adhesive sample.

[0027] refer to Figure 4 The slide rail 12 is I-shaped. A sliding groove 131 is provided on the front of the movable block 13, penetrating the movable block 13. Guide rollers 132 are rotatably connected to the upper and lower sides of the sliding groove 131 via rotating rods. The guide rollers 132 are rolled along the inner side of the slide rail 12, and their width matches the inner width of the slide rail 12, thus limiting the movement of the movable block 13. When the movable block 13 moves, it drives the two guide rollers 132 to roll along the surface of the slide rail 12, reducing friction and making the movement of the movable block 13 smoother.

[0028] refer to Figure 1 , 2The inside of the test box 10 is provided with a stretching mechanism 20, the stretching mechanism 20 comprises a first cylinder 201 fixedly connected to the inside bottom side of the test box 10, the output end of the first cylinder 201 is fixedly connected with a lifting block 202, the left and right sides of the lifting block 202 are respectively fixedly connected with a pair of clamping blocks 203, and the same side pair of clamping blocks 203 are rotatably connected with a connecting rod 204 through a movable shaft; the bottom of the moving block 13 is fixedly connected with a pair of clamping pieces 205, and the inner side of the pair of clamping pieces 205 is rotatably connected with the outer side end of the corresponding connecting rod 204 through a movable shaft.

[0029] After the structural adhesive test sample is clamped and fixed, the first cylinder 201 is started through an external power supply, the output end of the first cylinder 201 drives the lifting block 202 to extend upwards, the connecting rod 204 drives the two moving blocks 13 to move away from each other, thereby driving the two clamping mechanisms 30 to move away from each other, and the structural adhesive test sample is bidirectionally stretched, and the stretching distance of the structural adhesive test sample is controlled through the extension distance of the first cylinder 201. Thus, the effect of stretching the structural adhesive test sample is achieved. Since the structural adhesive may be subjected to forces from multiple directions in actual use, the bidirectional stretching can more comprehensively simulate the stress condition of the battery in actual work, thereby more accurately evaluating the mechanical properties of the structural adhesive.

[0030] Preferably, the right side of the left moving block 13 is provided with a displacement sensor emitting end 206, and the left side of the right moving block 13 is provided with a displacement sensor receiving end 207. During the movement of the two moving blocks 13, the displacement sensor emitting end 206 emits an infrared signal, and the signal is received by the displacement sensor receiving end 207, thereby achieving the effect of real-time feedback of the displacement distance. The front of the test box 10 is provided with a controller 11, and the controller 11 is electrically connected with the above-mentioned cylinder, displacement sensor emitting end 206, displacement sensor receiving end 207 and force value sensor 305. Before use, the staff inputs the stretching distance of the structural adhesive test sample to the controller 11, and then fixes and stretches the structural adhesive test sample through the above-mentioned mode, when the distance feedback by the displacement sensor emitting end 206 and the displacement sensor receiving end 207 is consistent with the set distance, the controller 11 controls the output end of the first cylinder 201 to stop moving, then the force value sensor 305 feedbacks the force followed by the structural adhesive test sample at this time, finally the data acquisition and analysis system built in the controller 11 processes and analyzes the collected data, and the key performance indicators such as the tensile strength and the elongation at break of the test sample are obtained.

[0031] The working principle of the utility model is: staff inputs the distance of stretching the structural adhesive sample to the controller 11, then the structural adhesive sample is fixed and stretched through the above-mentioned mode, when the distance of displacement sensor emission end 206 and displacement sensor receiving end 207 feedback is consistent with the set distance, the controller 11 controls the first cylinder 201 output end to stop moving, then the force value sensor 305 feeds back the force of the structural adhesive sample at the moment, finally the data acquisition and analysis system built-in the controller 11 processes and analyzes the data collected, obtains the key performance indicators such as tensile strength and elongation at break of the sample.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements all fall into the scope of the utility model claimed.

Claims

1. A new energy automobile power battery structure adhesive tensile strength detection device, including test box (10), the inside left and right sides of the test box (10) are fixedly connected with slide rail (12), the outside left and right sides of the slide rail (12) are respectively provided with mirror image symmetry and movable moving block (13), the top of the moving block (13) is provided with clamping mechanism (30), characterized in that, The clamping mechanism (30) includes a bearing plate (301) fixedly connected to the top of the moving block (13). Rotating rods (302) are rotatably connected to the front and rear sides of the top of the bearing plate (301). A flip-out turning clamp (303) is fixedly connected to the rotating rod (302). A tensioning mechanism (20) is provided inside the test chamber (10).

2. The new energy vehicle power battery structure adhesive tensile strength detection device according to claim 1, characterized in that, A connecting frame (307) is fixedly connected to the top left side of the bearing plate (301). A second cylinder (308) is fixedly connected to the right side of the connecting frame (307). A connecting block (309) is fixedly connected to the output end of the second cylinder (308). A driving rod (306) is hinged to the front and rear sides of the connecting block (309) through a hinge. The other side of the driving rod (306) is hinged to the corresponding side turning clamp (303) through a hinge.

3. The new energy vehicle power battery structure adhesive tensile strength detection device according to claim 1, characterized in that, A force sensor (305) is installed on one side of the turning clamp (303).

4. The new energy vehicle power battery structure adhesive tensile strength detection device according to claim 1, characterized in that, A pressing sheet (304) is provided on the inner side of the turning clamp (303), and the pressing sheet (304) is made of rubber.

5. The new energy vehicle power battery structure adhesive tensile strength detection device according to claim 1, characterized in that, The slide rail (12) is in the shape of an "I"; the front of the moving block (13) is provided with a sliding groove (131), the sliding groove (131) passes through the moving block (13), and the upper and lower sides of the sliding groove (131) are respectively connected to guide rollers (132) by rotating rods. The guide rollers (132) are rolled and connected to the inner side of the slide rail (12), and the width of the guide rollers (132) is adapted to the inner width of the slide rail (12).

6. The new energy vehicle power battery structure adhesive tensile strength detection device according to claim 1, characterized in that, The tensile mechanism (20) includes a first cylinder (201) fixedly connected to the bottom side inside the test chamber (10). The output end of the first cylinder (201) is fixedly connected to a lifting block (202). A pair of clamping blocks (203) are fixedly connected to the left and right sides of the lifting block (202). A connecting rod (204) is rotatably connected between the pair of clamping blocks (203) on the same side through a movable shaft. A pair of clamping pieces (205) are fixedly connected to the bottom of the moving block (13). The inner side of the pair of clamping pieces (205) is rotatably connected to the outer end of the corresponding connecting rod (204) through a movable shaft.

7. The new energy vehicle power battery structure adhesive tensile strength detection device according to claim 1, characterized in that, A displacement sensor transmitter (206) is installed on the right side of the moving block (13) on the left side, and a displacement sensor receiver (207) is installed on the left side of the moving block (13) on the right side; a controller (11) is installed on the front of the test chamber (10), and the controller (11) is electrically connected to the displacement sensor transmitter (206), the displacement sensor receiver (207), and the force sensor (305).

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