A kind of equipment for automobile sunroof flexible shaft durability test

Abstract

The utility model discloses a kind of for automobile sunroof flexible axle endurance performance test equipment, it is related to automobile sunroof flexible axle test technical field.The utility model includes base and flexible axle rapid test assembly, the bottom of base is fixedly connected with base, the left side of base inner chamber is provided with tension automatic adjusting mechanism, the flexible axle rapid test assembly includes flexible axle guide mechanism, the left side of flexible axle guide mechanism is set in base top, the top of base is fixedly connected with guide rail.The utility model is through flexible axle rapid test assembly, using flexible axle guide mechanism is guided and bent simulation to flexible axle, cooperation servo motor driving gear drives flexible axle reciprocating motion, after linear motor adjustment fixed frame position, using tooth plate is fixed to flexible axle, realize the quick clamping and independent test of flexible axle, avoid the influence of other components tolerance and assembly in sunroof assembly, shorten test cycle, reduce detection cost, improve test efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sunroof flexible shaft testing technology, and in particular relates to a device for testing the durability performance of automotive sunroof flexible shafts. Background Technology

[0002] Automotive sunroof performance testing is a standardized process for systematically evaluating the function, safety, and reliability of automotive sunroofs under various environmental and usage conditions. First, the sunroof's waterproof performance is tested to ensure no leakage under rain or high-pressure washing. Second, the sealing performance is examined to guarantee airtightness and sound insulation when closed. Next, the smoothness and response speed of the opening and closing mechanism are evaluated to avoid jamming or abnormal noise issues. Then, durability testing simulates long-term repeated operation to verify the wear resistance and service life of the sunroof components. Finally, a comprehensive inspection of safety features such as anti-pinch mechanisms, emergency closing logic, and structural integrity under extreme conditions is conducted.

[0003] However, the testing process for automotive sunroofs can only test the durability of the entire assembly. The automotive sunroof assembly consists of the front frame, motor, track, glass, and sunshade, etc. The testing process is easily affected by the manufacturing tolerances and assembly of each component, making it difficult to determine the cause of failure. In addition, the testing cycle is long and the testing cost is high. In particular, the testing process that only targets the flexible shaft cannot quickly and accurately determine the durability of the flexible shaft, which reduces the testing efficiency and is not conducive to use.

[0004] To address these issues, we provide a device for testing the durability of automotive sunroof flexible shafts. Utility Model Content

[0005] The purpose of this invention is to provide a durability testing device for automotive sunroof flexible shafts. By combining a rapid testing component for flexible shafts and an automatic tension adjustment mechanism, this invention solves the problem that existing automotive sunroof flexible shaft durability testing devices are easily affected by the tolerances and assembly of various components during the testing process, resulting in long testing cycles and high testing costs.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a durability performance testing device for automotive sunroof flexible shafts, comprising a base and a rapid testing assembly for the flexible shaft. A base is fixedly connected to the bottom of the base, and an automatic tension adjustment mechanism is provided on the left side of the inner cavity of the base. The rapid testing assembly for the flexible shaft includes a flexible shaft guide mechanism located on the left side of the top of the base. A guide rail is fixedly connected to the top of the base, and a servo motor is fixedly connected to the left side of the front side of the guide rail. A gear is fixedly connected to the rear side of the output end of the servo motor. A positioning frame is slidably connected to the rear side of the top of the base via a slide rail, and a cylinder is fixedly connected to the top of the positioning frame. A linear motor is fixedly connected to the rear side of the guide rail, and a fixing frame is fixedly connected to the top of the output end of the linear motor. A toothed plate is threadedly connected to the top of the fixing frame via bolts.

[0008] The present invention is further configured such that the automatic tension adjustment mechanism includes a control housing, the left side of which is fixedly connected to the inner wall of the base. A sliding rod is fixedly connected to the front and rear sides of the bottom of the control housing cavity. A sliding sleeve is slidably connected to the surface of the sliding rod. A drive motor is fixedly connected between the two sliding sleeves. A screw is fixedly connected to the bottom of the output end of the drive motor. A tension gauge is slidably connected to the surface of the screw. The top of the tension gauge is fixedly connected to a flexible shaft via an elongation detection sensor. A counterweight is provided at the bottom of the control housing cavity. A threaded through hole is provided at the top of the counterweight. The control housing facilitates the installation and fixation of the sliding rod. The sliding rod and sliding sleeve can limit the movement of the drive motor and the counterweight. The screw can engage with the threaded through hole, allowing the screw and the counterweight to be threadedly connected. The number of counterweights installed on the surface of the screw can be freely adjusted according to requirements. The tension gauge can detect the weight of the counterweight, and the elongation detection sensor can test the elongation of the flexible shaft.

[0009] The present invention is further configured such that mounting brackets are fixedly connected to the front and rear sides of the right side of the control housing, and a positioning ring is fixedly connected between the two mounting brackets. The inner wall of the positioning ring is slidably connected to the output end of the tension gauge. The mounting brackets facilitate the installation and fixing of the positioning ring, and the positioning ring is used to improve the stability of the tension gauge when adjusting its up and down position during the flexible shaft detection process.

[0010] The present invention is further configured such that the flexible shaft guiding mechanism includes a fixed plate, the top of the fixed plate is fixedly connected to the base, and guide wheels are installed on both sides of the front side of the fixed plate by bolts and slides. The fixed plate can cooperate with the bolts to control the movement of the guide wheels, and the slides are used to limit the guide wheels so that they can be adjusted in position smoothly.

[0011] The present invention is further provided that the bottom of the positioning frame is provided with a slide groove for use with the slide rail. The positioning frame is L-shaped. The slide groove can cooperate with the slide rail to improve the stability of the positioning frame during movement. The L-shape facilitates the cylinder to squeeze and position the fixed frame.

[0012] The present invention is further configured such that the top of the fixing frame is provided with a threaded hole for use with bolts, and limit rods are fixedly connected to both sides of the top of the toothed plate. The top of the limit rod extends through to the top of the fixing frame. The threaded hole allows the bolts to control the toothed plate to adjust its up and down position, and the limit rods can limit the toothed plate and improve its stability during movement.

[0013] The present invention is further configured such that support columns are fixedly connected to both sides of the bottom of the base, and an inspection door is movably connected to the rear side of the base via a hinge. The support columns can improve the stability of the base during operation, and the inspection door facilitates the maintenance and repair of the internal components of the base by the staff.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a flexible shaft rapid testing component to guide and simulate bending of the flexible shaft through a flexible shaft guide mechanism. In conjunction with a servo motor driving gears to drive the flexible shaft to reciprocate, and a linear motor to adjust the position of the fixing bracket, the flexible shaft is fixed by a gear plate. This enables rapid clamping and independent testing of the flexible shaft, avoiding the influence of tolerances and assembly of other components in the sunroof assembly, shortening the testing cycle, reducing testing costs, and improving testing efficiency.

[0016] 2. This utility model uses an automatic tension adjustment mechanism, which uses a drive motor to control the rotation of a screw to adjust the number of counterweights, and combines a sliding rod and a sliding sleeve to limit the counterweights. The tension on the flexible shaft is detected in real time by a tension gauge, and the elongation detection sensor measures the extension and contraction of the flexible shaft. This achieves automatic and precise control of tension and efficient testing of the durability of the flexible shaft, improving the accuracy and reliability of the test. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A perspective view of a device for testing the durability of automotive sunroof flexible shafts;

[0019] Figure 2 This is a cross-sectional view of the base in a durability testing device for automotive sunroof flexible shafts.

[0020] Figure 3 This is a schematic diagram of a flexible shaft guide mechanism in a durability testing device for automotive sunroof flexible shafts.

[0021] Figure 4 A side view of a rapid testing component for flexible shafts in a durability testing device for automotive sunroof flexible shafts;

[0022] Figure 5 This is a schematic diagram of an automatic tension adjustment mechanism used in a durability testing device for automotive sunroof flexible shafts.

[0023] In the attached diagram: 1. Base; 2. Base plate; 3. Flexible shaft rapid testing assembly; 31. Flexible shaft guide mechanism; 32. Guide rail; 33. Servo motor; 34. Gear; 35. Positioning frame; 36. Cylinder; 37. Linear motor; 38. Fixing frame; 39. Gear plate; 4. Automatic tension adjustment mechanism; 41. Control housing; 42. Slide rod; 43. Sliding sleeve; 44. Drive motor; 45. Screw; 46. Tensile gauge; 47. Elongation detection sensor; 48. Counterweight; 311. Fixing plate; 312. Guide wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a device for testing the durability of a flexible shaft for automotive sunroofs. It includes a base 1 and a rapid testing assembly 3 for the flexible shaft. A base 2 is fixedly connected to the bottom of the base 1. An automatic tension adjustment mechanism 4 is provided on the left side of the inner cavity of the base 2. The rapid testing assembly 3 for the flexible shaft includes a flexible shaft guide mechanism 31, which is located on the left side of the top of the base 1. A guide rail 32 is fixedly connected to the top of the base 1. A servo motor 33 is fixedly connected to the left side of the front side of the guide rail 32. A gear 34 is fixedly connected to the rear side of the output end of the servo motor 33. A positioning frame 35 is slidably connected to the rear side of the top of the base 1 via a slide rail. A cylinder 36 is fixedly connected to the top of the positioning frame 35. A linear motor 37 is fixedly connected to the rear side of the guide rail 32. A fixing frame 38 is fixedly connected to the top of the output end of the linear motor 37. A toothed plate 39 is threadedly connected to the top of the fixing frame 38 via bolts.

[0027] Specifically: the base 2 provides stable support for the base 1; the automatic tension adjustment mechanism 4 can automatically adjust the tension on the flexible shaft according to the requirements; the flexible shaft guide mechanism 31 can guide the flexible shaft and simulate the bending of the flexible shaft, improving the detection effect of the flexible shaft; the guide rail 32 can facilitate the limiting of the flexible shaft; the servo motor 33 is used to control the rotation of the gear 34, enabling it to continuously rotate forward and reverse, and is used to control the left and right displacement of the flexible shaft; the positioning frame 35 and the cylinder 36 can limit the position of the fixed frame 38; the linear motor 37 can control the position of the fixed frame 38 and the toothed plate 39; the toothed plate 39 can limit and fix the flexible shaft in the guide rail 32 through bolts and the fixed frame 38.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, the automatic tension adjustment mechanism 4 includes a control housing 41. The left side of the control housing 41 is fixedly connected to the inner wall of the base 2. Slide rods 42 are fixedly connected to the front and rear sides of the bottom of the inner cavity of the control housing 41. Sliding sleeves 43 are slidably connected to the surface of the slide rods 42. A drive motor 44 is fixedly connected between the two sliding sleeves 43. A screw 45 is fixedly connected to the bottom of the output end of the drive motor 44. A tension gauge 46 is slidably connected to the surface of the screw 45. The top of the tension gauge 46 is fixedly connected to a flexible shaft through an elongation detection sensor 47. A counterweight 48 is provided at the bottom of the inner cavity of the control housing 41. A threaded through hole is opened on the top of the counterweight 48. An installation device is fixedly connected to the front and rear sides of the right side of the control housing 41. The mounting brackets are fixedly connected to two mounting brackets with positioning rings. The inner wall of the positioning rings is slidably connected to the output end of the tension gauge 46. The flexible shaft guide mechanism 31 includes a fixed plate 311. The top of the fixed plate 311 is fixedly connected to the base 1. Guide wheels 312 are installed on both sides of the front side of the fixed plate 311 by bolts and slide rails. The bottom of the positioning bracket 35 is provided with a slide groove that cooperates with the slide rail. The positioning bracket 35 is L-shaped. The top of the fixed bracket 38 is provided with a threaded hole that cooperates with bolts. Limit rods are fixedly connected to both sides of the top of the toothed plate 39. The top of the limit rods extends through to the top of the fixed bracket 38. Support columns are fixedly connected to both sides of the bottom of the base 2. An inspection door is movably connected to the rear side of the base 2 by a hinge.

[0030] Specifically: the control housing 41 facilitates the installation and fixation of the slide rod 42; the slide rod 42 and the sliding sleeve 43 can limit the movement of the drive motor 44 and the counterweight 48; the screw 45 can mate with the threaded through hole, so that the screw 45 and the counterweight 48 are threadedly connected to each other; the number of counterweights 48 installed on the surface of the screw 45 can be freely adjusted according to requirements; the tension gauge 46 can detect the weight of the counterweight 48; the elongation detection sensor 47 can test the elongation of the flexible shaft; the mounting bracket facilitates the installation and fixation of the positioning ring; the positioning ring is used to improve the stability of the tension gauge 46 when adjusting its vertical position during the flexible shaft testing process. The fixed plate 311 can cooperate with the bolt to control the movement of the guide wheel 312. The slide rail is used to limit the guide wheel 312 so that it can be adjusted smoothly. The slide groove can cooperate with the slide rail to improve the stability of the positioning frame 35 during movement. The L-shape facilitates the cylinder 36 to press and position the fixed frame 38. The threaded hole facilitates the bolt to control the toothed plate 39 to adjust its up and down position. The limit rod can limit the toothed plate 39 to improve its stability during movement. The support column can improve the stability of the base 2 during operation. The maintenance door facilitates the maintenance and repair of the internal components of the base 2 by the staff.

[0031] The working principle of this utility model is as follows: The flexible shaft is placed inside the guide rail 32, then passed through the flexible shaft guide mechanism 31 and connected to the elongation detection sensor 47. The flexible shaft guide mechanism 31 provides guidance and simulates bending. The positions of the two guide wheels 312 can be adjusted to simulate the bending state of the flexible shaft under different conditions. According to testing requirements, the drive motor 44 and screw 45 are moved downwards. After the drive motor 44 is turned on, it drives the screw 45 to rotate. The screw 45 engages with the threaded through hole to fix the counterweight 48 on its surface. After fixing a specified number of counterweights 48, the linear motor 37 is turned on. The linear motor 37 adjusts the position of the fixing frame 38 and the toothed plate 39 by rotating the bolt. The toothed plate 39 presses down to compress and fix the flexible shaft. The cylinder 36 is activated to position and fix the fixing frame 38, preventing displacement during the flexible shaft test. The servo motor 33 is activated to control the rotation of the gear 34. The gear 34 rotates forward and backward continuously to drive the flexible shaft to pull the counterweight 48 to move back and forth. At this time, the tension gauge 46 and the elongation detection sensor 47 are used to detect the elongation of the flexible shaft. The flexible shaft can be detected by two methods: the number of cycles and the elongation range. After the number of forward and reverse rotations of the gear 34 is reached, the test of the flexible shaft is completed. The test stops when the elongation of the flexible shaft reaches the set value. By simulating the product working conditions, the test achieves the goal of speed, accuracy and low cost.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A durability performance testing device for automotive sunroof flexible shafts, comprising a base (1) and a rapid testing assembly for the flexible shaft (3), characterized in that: The base (1) is fixedly connected to the bottom of the base (2), and the left side of the inner cavity of the base (2) is provided with an automatic tension adjustment mechanism (4); The flexible shaft rapid testing assembly (3) includes a flexible shaft guide mechanism (31), which is located on the left side of the top of the base (1). A guide rail (32) is fixedly connected to the top of the base (1). A servo motor (33) is fixedly connected to the left side of the front side of the guide rail (32). A gear (34) is fixedly connected to the rear side of the output end of the servo motor (33). A positioning frame (35) is slidably connected to the rear side of the top of the base (1) via a slide rail. A cylinder (36) is fixedly connected to the top of the positioning frame (35). A linear motor (37) is fixedly connected to the rear side of the guide rail (32). A fixing frame (38) is fixedly connected to the top of the output end of the linear motor (37). A toothed plate (39) is threadedly connected to the top of the fixing frame (38) via bolts.

2. The device for testing the durability of automotive sunroof flexible shafts according to claim 1, characterized in that: The automatic tension adjustment mechanism (4) includes a control housing (41). The left side of the control housing (41) is fixedly connected to the inner wall of the base (2). Slide rods (42) are fixedly connected to the front and rear sides of the bottom of the inner cavity of the control housing (41). Slide sleeves (43) are slidably connected to the surface of the slide rods (42). A drive motor (44) is fixedly connected between the two slide sleeves (43). A screw (45) is fixedly connected to the bottom of the output end of the drive motor (44). A tension gauge (46) is slidably connected to the surface of the screw (45). The top of the tension gauge (46) is fixedly connected to the flexible shaft through an elongation detection sensor (47). A counterweight (48) is provided at the bottom of the inner cavity of the control housing (41). A threaded through hole is opened at the top of the counterweight (48).

3. The device for testing the durability of automotive sunroof flexible shafts according to claim 2, characterized in that: The control housing (41) has mounting brackets fixedly connected to the front and rear sides on the right side, and a positioning ring is fixedly connected between the two mounting brackets. The inner wall of the positioning ring is slidably connected to the output end of the tension gauge (46).

4. The device for testing the durability of automotive sunroof flexible shafts according to claim 1, characterized in that: The flexible shaft guide mechanism (31) includes a fixed plate (311), the top of which is fixedly connected to the base (1), and guide wheels (312) are installed on both sides of the front side of the fixed plate (311) by bolts and slides.

5. The device for testing the durability of automotive sunroof flexible shafts according to claim 1, characterized in that: The bottom of the positioning frame (35) is provided with a slide groove that cooperates with the slide rail, and the positioning frame (35) is L-shaped.

6. The device for testing the durability of automotive sunroof flexible shafts according to claim 1, characterized in that: The top of the fixing frame (38) is provided with a threaded hole for use with bolts, and the two sides of the top of the toothed plate (39) are fixedly connected with limit rods, the top of the limit rods extending through to the top of the fixing frame (38).

7. The device for testing the durability of automotive sunroof flexible shafts according to claim 1, characterized in that: The base (2) has support columns fixedly connected to both sides of its bottom, and the rear side of the base (2) is movably connected to an inspection door via a hinge.

Images