High and low temperature cycle testing device for automotive upholstery

Abstract

The utility model discloses an automobile interior trim part high and low temperature cycle test device, which comprises a base, one end of the upper side of the base is fixedly connected with a high temperature box and a low temperature box through a support frame, one end of the upper side of the base is provided with a moving frame, and one side of the upper end of the moving frame is rotatably connected with a first rotating shaft. A rotating frame is fixedly connected to one end of the first rotating shaft, box covers are fixedly connected to the positions, corresponding to the high-temperature box and the low-temperature box, of one side of the rotating frame, a second rotating shaft is rotationally connected to the center of each box cover, and a gear is rotationally connected to the position, corresponding to the first rotating shaft, of one side of the moving frame. According to the utility model, the movable frame, the rotating frame, the box cover, the second rotating shaft, the fixed block, the clamping rod, the first rotating shaft, the gear, the sliding block and the rack block are arranged, so that the influence on the test result caused by uneven contact temperature during the test of the interior trim part is avoided, the interior trim part does not need to be disassembled and re-clamped during the high-temperature and low-temperature conversion test, time and labor are saved, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of high and low temperature cycle testing device for automotive interior parts, and more particularly to a high and low temperature cycle testing device for automotive interior parts. Background Technology

[0002] Automotive interior components refer to various decorative and functional parts inside a car, including the dashboard, seats, door panels, headliner, and floor. High and low temperature cycling testing of automotive interior components is a test method used to evaluate the durability of these components. The test involves subjecting the components to cyclic testing under high and low temperature conditions to assess their heat resistance, cold resistance, and durability.

[0003] Chinese patent publication number CN222420054U discloses a heat resistance testing device for automotive interior parts, relating to the field of heat resistance testing technology for automotive interior parts. The device includes a fixed frame, a movable frame positioned above the fixed frame, a rotating rod rotatably connected to the inner wall of the movable frame, and two symmetrical clamping mechanisms inside the movable frame. Each clamping mechanism includes a support base, a connecting plate fixedly connected to the bottom surface of the support base, and a rotating tube rotatably connected to the inner wall of the connecting plate. This heat resistance testing device for automotive interior parts, through the arrangement of the fixed frame, clamping mechanisms, movable frame, and rotating rod, allows for slow rotation after the automotive interior part is fixed, ensuring relatively uniform heating of the surface of the automotive interior part by the heating plate. This avoids temperature differences between the side of the interior part facing the heating plate and the side facing away from the heating plate, ensuring a more uniform surface temperature during heat resistance testing and thus improving the accuracy of the test.

[0004] Existing high and low temperature cycling testing devices for automotive interior parts have drawbacks, such as the need to remove and reposition the interior parts before re-clamping them for testing when switching between high and low temperatures, which is time-consuming and labor-intensive. To overcome these disadvantages, this utility model provides a high and low temperature cycling testing device for automotive interior parts. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high and low temperature cycle testing device for automotive interior parts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high and low temperature cycle testing device for automotive interior parts, comprising a base, a high temperature chamber and a low temperature chamber fixedly connected to one upper end of the base via a support frame, a movable frame provided at one upper end of the base, a first rotating shaft rotatably connected to one side of the upper end of the movable frame, a rotating frame fixedly connected to one end of the first rotating shaft, a chamber cover fixedly connected to one side of the rotating frame at corresponding positions of the high temperature chamber and the low temperature chamber, a second rotating shaft rotatably connected to the center of each chamber cover, a fixing block fixedly connected to one end of each second rotating shaft, a second sliding groove provided on one side of each fixing block, clamping rods symmetrically slidably connected to both ends of each second sliding groove, a driven bevel gear fixedly connected to one end of each second rotating shaft through the corresponding chamber cover, a gear rotatably connected to one side of the movable frame at the position corresponding to the first rotating shaft, a third sliding groove provided on one side of the movable frame, a slider slidably connected to one end of the third sliding groove, a rack block fixedly connected to one end of the slider, an electric heating plate provided on the inner wall of the high temperature chamber, and a liquid cooler provided inside the low temperature chamber.

[0007] Furthermore, the upper end of the base is provided with first sliding grooves on both sides, and the bottom ends of the movable frame are slidably connected to the corresponding first sliding grooves. A first one-way screw is rotatably connected in the first sliding groove on one side, and one end of the first one-way screw is threadedly connected to the movable frame. A first motor is fixedly connected to one side of the base at the position corresponding to the first one-way screw. The output end of the first motor passes through the side wall of the base and is fixedly connected to one end of the first one-way screw. A limit rod is fixedly connected in the first sliding groove on one side, and one bottom end of the movable frame is slidably connected to the limit rod.

[0008] Furthermore, each of the second sliding grooves is rotatably connected with a bidirectional screw, the two ends of which are threadedly connected to the corresponding clamping rods. Each of the fixed blocks is rotatably connected with a handle at the position corresponding to the bidirectional screw, and one end of each bidirectional screw passes through the side wall of the corresponding fixed block and is fixedly connected to the handle.

[0009] Furthermore, a drive shaft is rotatably connected inside the rotating frame. Both ends of the drive shaft are fixedly connected to a driving bevel gear at the corresponding positions of the driven bevel gears. The driving bevel gears mesh with the corresponding driven bevel gears. A second motor is fixedly connected to one side of the rotating frame at the position corresponding to the drive shaft. The output end of the second motor passes through the side wall of the rotating frame and is fixedly connected to one end of the drive shaft.

[0010] Furthermore, one end of the first rotating shaft passes through the movable frame and is fixedly connected to the gear. The rack block meshes with the gear. A second one-way screw is rotatably connected in the third sliding groove. One end of the second one-way screw is threadedly connected to the slider. A third motor is fixedly connected to the bottom side of the movable frame at the position corresponding to the second one-way screw. The output end of the third motor passes through the bottom side wall of the movable frame and is fixedly connected to one end of the second one-way screw.

[0011] Furthermore, a sealing ring is fixedly connected to the outer periphery of the box cover near the fixing block, and a circulating fan is installed inside both the high-temperature box and the low-temperature box.

[0012] The beneficial effects of this utility model are:

[0013] When in use, this utility model of a high and low temperature cycle testing device for automotive interior parts has the following advantages:

[0014] 1. In this solution, a support frame, a high-temperature chamber, a low-temperature chamber, a movable frame, a first sliding groove, a first one-way screw, a rotating frame, a chamber cover, a second rotating shaft, a sealing ring, a fixing block, a second sliding groove, a two-way screw, clamping rods, a throttle, a drive shaft, a driven bevel gear, a driving bevel gear, a heating plate, and a liquid cooler are provided. Two automotive interior trim parts to be tested are placed on opposite sides of their respective fixing blocks. Rotating the corresponding throttle causes the clamping rods at both ends to move towards each other, clamping the interior trim parts. A first motor drives the first one-way screw to rotate, thereby moving the movable frame towards the high-temperature and low-temperature chambers until the clamped interior trim parts are inserted into the high-temperature and low-temperature chambers and the corresponding chamber cover is engaged at the chamber openings. Subsequently, a second motor drives the drive shaft and driving bevel gear to rotate, thereby causing the driven bevel gear, the second rotating shaft, and the fixing block to rotate synchronously, causing the clamped interior trim parts to rotate. A circulating fan accelerates internal air circulation, improving the uniformity of temperature distribution and preventing uneven contact temperature during interior trim part testing from affecting the test results.

[0015] 2. In this solution, a first rotating shaft, gear, third sliding groove, second one-way screw, slider, and rack block are configured. When high and low temperature conversion tests are required, the first motor runs in reverse, and the moving frame moves in reverse to move the interior trim parts out of the corresponding chamber. The third motor drives the second one-way screw to rotate, thereby driving the slider and rack block to move along the direction of the third sliding groove, which in turn drives the gear meshing with it to rotate, and then drives the first rotating shaft and rotating frame to rotate, until the two clamped interior trim parts are swapped. Then, they are inserted into the corresponding low temperature chamber and high temperature chamber for testing again. This operation is repeated to perform high and low temperature cycle tests. There is no need to remove the interior trim parts, re-clamp them, and then test them again, saving time and effort and improving testing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 : A schematic diagram of the overall structure of this utility model;

[0018] Figure 2 Top view of this utility model;

[0019] Figure 3 : Another perspective structural schematic diagram of this utility model;

[0020] Figure 4 : A cross-sectional side view of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Base; 2. Support frame; 3. High-temperature chamber; 4. Low-temperature chamber; 5. Moving frame; 6. First slide groove; 7. First one-way screw; 8. Limiting rod; 9. First motor; 10. Rotating frame; 11. First rotating shaft; 12. Chamber cover; 13. Second rotating shaft; 14. Sealing ring; 15. Fixing block; 16. Second slide groove; 17. Two-way screw; 18. Clamping rod; 19. Turning handle; 20. Drive shaft; 21. Driven bevel gear; 22. Driving bevel gear; 23. Second motor; 24. Gear; 25. Third slide groove; 26. Second one-way screw; 27. Slider; 28. Rack block; 29. ​​Third motor; 30. Heating plate; 31. Liquid cooler; 32. Circulating fan. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4As shown, a high and low temperature cycling test device for automotive interior parts is disclosed. It includes a base 1, with a high-temperature chamber 3 and a low-temperature chamber 4 fixedly connected to one upper end of the base 1 via a support frame 2. A movable frame 5 is provided on one upper end of the base 1, and a first rotating shaft 11 is rotatably connected to one side of the upper end of the movable frame 5. The first rotating shaft 11 corresponds to the center position between the high-temperature chamber 3 and the low-temperature chamber 4. A rotating frame 10 is fixedly connected to one end of the first rotating shaft 11. A cover 12 is fixedly connected to one side of the rotating frame 10 at the corresponding positions of the high-temperature chamber 3 and the low-temperature chamber 4. Both the high-temperature chamber 3 and the low-temperature chamber 4 have open structures facing the movable frame 5. A first rotating frame 10 is rotatably connected to the center of each cover 12. Two rotating shafts 13, one end of which is fixedly connected to a fixing block 15. A second sliding groove 16 is opened on one side of each fixing block 15. Clamping rods 18 are symmetrically slidably connected to both ends of the second sliding groove 16. A driven bevel gear 21 is fixedly connected to one end of each rotating shaft 13 through the corresponding box cover 12. A gear 24 is rotatably connected to one side of the moving frame 5 at the position corresponding to the first rotating shaft 11. A third sliding groove 25 is opened on one side of the moving frame 5. A slider 27 is slidably connected to one end of the third sliding groove 25. A rack block 28 is fixedly connected to one end of the slider 27. An electric heating plate 30 is provided on the inner wall of the high temperature box 3. A liquid cooler 31 is provided inside the low temperature box 4.

[0025] like Figure 1-4 As shown, the upper end of the base 1 has first sliding grooves 6 on both sides. The bottom ends of the movable frame 5 are slidably connected to the corresponding first sliding grooves 6. A first one-way screw 7 is rotatably connected in the first sliding groove 6 on one side. One end of the first one-way screw 7 is threadedly connected to the movable frame 5. A first motor 9 is fixedly connected to one side of the base 1 at the position corresponding to the first one-way screw 7. The output end of the first motor 9 passes through the side wall of the base 1 and is fixedly connected to one end of the first one-way screw 7. A limit rod 8 is fixedly connected in the first sliding groove 6 on one side. One bottom end of the movable frame 5 is slidably connected to the limit rod 8. When the first motor 9 is started, the first one-way screw 7 is rotated, which in turn drives the movable frame 5 to move along the first sliding groove 6 toward the high temperature chamber 3 and the low temperature chamber 4 until the clamped interior parts are inserted into the high temperature chamber 3 and the low temperature chamber 4 and the corresponding chamber cover 12 is locked at the opening of the high temperature chamber 3 and the low temperature chamber 4, which facilitates testing.

[0026] like Figure 1-4 As shown, a bidirectional screw 17 is rotatably connected in the second slide groove 16. The two ends of the bidirectional screw 17 are threadedly connected to the corresponding clamping rods 18. A throttle handle 19 is rotatably connected to one side of the fixing block 15 at the position corresponding to the bidirectional screw 17. One end of the bidirectional screw 17 passes through the side wall of the corresponding fixing block 15 and is fixedly connected to the throttle handle 19. The two automotive interior parts to be tested are placed on one side of the corresponding fixing block 15, and the corresponding throttle handle 19 is rotated, thereby driving the corresponding bidirectional screw 17 to rotate, which in turn drives the clamping rods 18 at both ends to move towards each other to clamp the interior parts.

[0027] like Figure 1-4 As shown, a drive shaft 20 is rotatably connected inside the rotating frame 10. Both ends of the drive shaft 20 are fixedly connected to a drive bevel gear 22 at the corresponding positions of the driven bevel gear 21. The drive bevel gear 22 meshes with the corresponding driven bevel gear 21. A second motor 23 is fixedly connected to one side of the rotating frame 10 at the corresponding position of the drive shaft 20. The output end of the second motor 23 passes through the side wall of the rotating frame 10 and is fixedly connected to one end of the drive shaft 20. When the second motor 23 is started, the drive shaft 20 and the drive bevel gear 22 are driven to rotate, which in turn drives the driven bevel gear 21 that meshes with it to rotate. As a result, the second rotating shaft 13 and the fixed block 15 rotate synchronously, thereby causing the clamped interior parts to rotate, thus avoiding uneven contact temperature of the interior parts during testing and affecting the test results.

[0028] like Figure 1-4 As shown, one end of the first rotating shaft 11 passes through the movable frame 5 and is fixedly connected to the gear 24. The rack block 28 meshes with the gear 24. A second one-way screw 26 is rotatably connected in the third slide groove 25. One end of the second one-way screw 26 is threadedly connected to the slider 27. A third motor 29 is fixedly connected to the bottom side of the movable frame 5 at the position corresponding to the second one-way screw 26. The output end of the third motor 29 passes through the bottom side wall of the movable frame 5 and is fixedly connected to one end of the second one-way screw 26. When a high and low temperature conversion test is required, the first motor 9 is started in reverse to move the movable frame 5. The reverse movement moves the interior trim pieces out of their corresponding housings. The third motor 29 is then activated, causing the second one-way screw 26 to rotate. This, in turn, moves the slider 27 and rack block 28 along the direction of the third slide groove 25, which in turn rotates the meshing gear 24. This, in turn, rotates the first rotating shaft 11 and the rotating frame 10 until the two clamped interior trim pieces are swapped. They are then inserted back into the corresponding low-temperature chamber 4 and high-temperature chamber 3 for testing. This process is repeated to perform high and low temperature cycle testing. There is no need to remove the interior trim pieces, re-clamp them, and then test them again, saving time and effort and improving testing efficiency.

[0029] like Figure 1-4 As shown, sealing rings 14 are fixedly connected to the outer periphery of the side of the cover 12 near the fixing block 15 to improve the sealing performance. Both the high temperature chamber 3 and the low temperature chamber 4 are equipped with circulating fans 32 to accelerate the internal air circulation and improve the uniformity of temperature distribution.

[0030] Working principle: In use, the two automotive interior parts to be tested are placed on one side of the corresponding fixing block 15. Turning the corresponding throttle 19 rotates the corresponding bidirectional screw 17, which in turn moves the clamping rods 18 at both ends towards each other to clamp the interior parts. The first motor 9 is started, which rotates the first unidirectional screw 7, causing the moving frame 5 to move along the first slide groove 6 towards the high-temperature chamber 3 and the low-temperature chamber 4 until the clamped interior parts are inserted into the high-temperature chamber 3 and the low-temperature chamber 4, and the corresponding chamber cover 12 is engaged at the opening of the high-temperature chamber 3 and the low-temperature chamber 4. Then, the second motor 23 is started, which rotates the drive shaft 20 and the driving bevel gear 22, which in turn rotates the driven bevel gear 21 meshing with it. This causes the second rotating shaft 13 and the fixing block 15 to rotate synchronously. The clamped interior trim parts rotate to avoid uneven contact temperature during testing, which could affect the test results. When high and low temperature conversion tests are required, the first motor 9 is started in reverse to move the moving frame 5 in the opposite direction, moving the interior trim parts out of the corresponding chamber. The third motor 29 is then started, which drives the second one-way screw 26 to rotate, thereby driving the slider 27 and rack block 28 to move along the direction of the third slide groove 25, which in turn drives the meshing gear 24 to rotate, which in turn drives the first rotating shaft 11 and rotating frame 10 to rotate, until the two clamped interior trim parts are swapped. Then, they are inserted into the corresponding low temperature chamber 4 and high temperature chamber 3 for testing. This operation is repeated to perform high and low temperature cycle tests. There is no need to remove the interior trim parts and re-clamp them for testing, which saves time and effort and improves testing efficiency.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high and low temperature cycle test device for automotive interior parts, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a high-temperature chamber (3) and a low-temperature chamber (4) via a support frame (2). A movable frame (5) is provided on the upper end of the base (1). A first rotating shaft (11) is rotatably connected to one side of the upper end of the movable frame (5). A rotating frame (10) is fixedly connected to one end of the first rotating shaft (11). A box cover (12) is fixedly connected to one side of the rotating frame (10) at the corresponding positions of the high-temperature chamber (3) and the low-temperature chamber (4). A second rotating shaft (13) is rotatably connected to the center of each box cover (12). A fixing block (15) is fixedly connected to one end of each second rotating shaft (13). A first fixing block (15) is opened on one side of each fixing block (15). The second slide (16) has two symmetrical sliding rods (18) at both ends. One end of the second rotating shaft (13) is fixedly connected to the corresponding box cover (12) with a driven bevel gear (21). One side of the moving frame (5) is rotatably connected to a gear (24) at the position corresponding to the first rotating shaft (11). A third slide (25) is opened on one side of the moving frame (5). A slider (27) is slidably connected to one end of the third slide (25). A rack block (28) is fixedly connected to one end of the slider (27). An electric heating plate (30) is provided on the inner wall of the high temperature box (3). A liquid cooler (31) is provided inside the low temperature box (4).

2. The high and low temperature cycle test device for an automotive interior part according to claim 1, characterized by: The upper end of the base (1) is provided with first sliding grooves (6) on both sides. The bottom ends of the movable frame (5) are slidably connected to the corresponding first sliding grooves (6). A first one-way screw (7) is rotatably connected in the first sliding groove (6) on one side. One end of the first one-way screw (7) is threadedly connected to the movable frame (5). A first motor (9) is fixedly connected to one side of the base (1) at the position corresponding to the first one-way screw (7). The output end of the first motor (9) passes through the side wall of the base (1) and is fixedly connected to one end of the first one-way screw (7). A limit rod (8) is fixedly connected in the first sliding groove (6) on one side. One bottom end of the movable frame (5) is slidably connected to the limit rod (8).

3. The high and low temperature cycle test device for an automotive interior part according to claim 1, characterized by: The second slide groove (16) is rotatably connected with a bidirectional screw (17). The two ends of the bidirectional screw (17) are threadedly connected to the corresponding clamping rod (18). The fixed block (15) is rotatably connected with a handle (19) at the position corresponding to the bidirectional screw (17) on one side. One end of the bidirectional screw (17) passes through the side wall of the corresponding fixed block (15) and is fixedly connected to the handle (19).

4. The high and low temperature cycle test device for an automotive interior part according to claim 1, characterized by: A drive shaft (20) is rotatably connected inside the rotating frame (10). Both ends of the drive shaft (20) are fixedly connected to a drive bevel gear (22) at the corresponding positions of the driven bevel gear (21). The drive bevel gear (22) meshes with the corresponding driven bevel gear (21). A second motor (23) is fixedly connected to one side of the rotating frame (10) at the position corresponding to the drive shaft (20). The output end of the second motor (23) passes through the side wall of the rotating frame (10) and is fixedly connected to one end of the drive shaft (20).

5. The high and low temperature cycle test device for an automotive interior part according to claim 1, characterized by: One end of the first rotating shaft (11) passes through the movable frame (5) and is fixedly connected to the gear (24). The rack block (28) meshes with the gear (24). A second one-way screw (26) is rotatably connected in the third slide groove (25). One end of the second one-way screw (26) is threadedly connected to the slider (27). A third motor (29) is fixedly connected to the bottom side of the movable frame (5) at the position corresponding to the second one-way screw (26). The output end of the third motor (29) passes through the bottom side wall of the movable frame (5) and is fixedly connected to one end of the second one-way screw (26).

6. The high and low temperature cycle test device for an automotive interior part according to claim 1, characterized by: The outer periphery of the cover (12) near the fixing block (15) is fixedly connected with a sealing ring (14), and the interior of the high temperature box (3) and the low temperature box (4) are both equipped with a circulating fan (32).

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