Pedal sleeve pulling-out force detection equipment

Abstract

The utility model discloses a pedal sleeve pull-out force detection device, which comprises a rack, a moving table, a pull and push dynamometer, a lifting mechanism and a pedal sleeve tool, the moving table is fixed on the table surface of the rack, the pull and push dynamometer can move back and forth and left and right through the moving table, the lifting mechanism is fixed on the table surface of the rack, and the pedal sleeve tool is fixed on the lifting mechanism. The pedal sleeve tool can move up and down through the lifting mechanism; the pedal sleeve tool is used for fixing a pedal sleeve, and the pull and push dynamometer is used for applying thrust to four corners of the pedal sleeve; the pedal sleeve pull-out force detection device changes manual control into electric control from essence, eliminates subjective factors, greatly improves repeatability and accuracy of pedal sleeve pull-out force detection, is suitable for wide popularization, and is very practical for improving push-pull force detection of an existing automobile pedal sleeve.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts testing, and in particular to a pedal sleeve pull-out force testing device. Background Technology

[0002] Brake pedal and clutch pedal covers play a crucial role in a vehicle's overall functionality and performance: 1) Anti-slip and operational stability: Brake pedal covers typically feature rubber, metal, or anti-slip textures, increasing friction between the foot and the pedal, especially in rainy or snowy weather or when the driver's shoes are wet, preventing slippage and ensuring precise braking during emergencies. 2) Protecting original pedals: Long-term use can lead to wear or corrosion on the original pedal surface. Installing pedal covers reduces direct wear on metal or plastic pedals, extending their lifespan. 3) Enhancing driving comfort: Pedal covers are made of soft materials, alleviating fatigue from prolonged use, especially suitable for urban driving conditions requiring frequent braking. 4) Differentiating functional areas: Helping drivers quickly identify the brake pedal location, reducing the risk of accidentally pressing the accelerator.

[0003] If pedal covers detach during vehicle operation, it can cause serious consequences: 1) Risk of slippage during emergency braking: The core function of pedal covers is to increase friction. Their detachment can make the pedal surface (especially metal or plastic) slippery. In rainy or snowy weather, or when the driver's shoes are wet, the foot is prone to slipping during emergency braking, potentially causing braking delay or even failure. 2) Abnormal pedal travel interference: Detached fragments may become stuck in the brake pedal's mechanical structure, increasing pedal resistance or causing abnormal rebound, affecting braking response speed. 3) Accelerated wear of original pedals: Exposed metal / plastic pedals are easily scratched by hard objects on the soles of shoes during long-term use. Metal components may lose strength due to oxidation and corrosion, shortening their lifespan. 4) Risk of foreign object intrusion: With pedal covers missing, mud, sand, liquids, etc., can more easily enter the pedal pivot area, leading to lubrication failure or corrosion, and in extreme cases, potentially causing pedal jamming. 5) Muscle memory interference: Drivers accustomed to the thickness of pedal covers may experience control errors due to their sudden absence (such as misjudging pedal height), especially in emergencies where they may accidentally press the accelerator. 6) Lack of tactile feedback: Some textured or raised pedal covers can help drivers quickly locate the pedal position. If they fall off, it will make it difficult to locate the pedal when operating blindly, which is especially dangerous when driving at night.

[0004] To ensure the safety of vehicle operation, the pull-out force test of pedal covers is particularly important. Currently, the conventional testing method involves the tester holding a push-pull force gauge and forcefully pushing against the four corners of the pedal cover, then reading the detachment value. However, this method has two problems: 1) Because it is a handheld method, the uniformity of the push-pull process cannot be guaranteed, resulting in a certain acceleration. Furthermore, different testers will obtain different results, leading to poor repeatability and significant variability. Utility Model Content

[0005] This invention proposes a device for detecting the pull-out force of pedal sleeves, aiming to solve the problem of low accuracy in existing detection methods.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a pedal sleeve pull-out force testing device, including a frame, characterized in that: it further includes a movable platform, a push-pull force gauge, a lifting mechanism, and a pedal sleeve fixture; the movable platform is fixed on the table surface of the frame, the push-pull force gauge can move back and forth and left and right through the movable platform, the lifting mechanism is fixed on the table surface of the frame, and the pedal sleeve fixture can move up and down through the lifting mechanism; the pedal sleeve fixture is used to fix the pedal sleeve, and the push-pull force gauge is used to apply a pushing force to the four corners of the pedal sleeve.

[0007] Further defining the above technical solution, the structure of the moving platform includes: a lower base, a horizontal lower lead screw and a lower guide rod inside the lower base, a meshing lower slider on the lower lead screw, the lower slider being slidably connected to the lower guide rod, a lower servo motor on the outer side of the lower base for driving the lower lead screw, and the lower slider being able to move left and right on the lower guide rod via the lower lead screw; the lower slider is used to fix an upper base, a horizontal upper lead screw and an upper guide rod inside the upper base, an meshing upper slider on the upper lead screw, the upper slider being slidably connected to the upper guide rod, an upper servo motor on the outer side of the upper base for driving the upper lead screw, the upper slider being able to move back and forth on the upper guide rod via the upper lead screw, and the upper slider being used to fix a push-pull force gauge.

[0008] Further defining the above technical solution, the structure of the lifting mechanism includes a lower support and an upper support. A lead screw and a guide rod are vertically mounted on the lower support. The upper ends of the lead screw and the guide rod are connected to the upper support. A sliding block is mounted on the lead screw and is slidably connected to the guide rod. A servo motor is mounted on the top surface of the upper support. The servo motor drives the lead screw. The sliding block can move back and forth on the guide rod via the lead screw. The sliding block is used to fix the pedal sleeve fixture.

[0009] Further defining the above technical solution, the structure of the pedal sleeve tooling includes a support rod, one end of which is fixedly connected to the slider in the lifting mechanism, and the other end of the support rod has a groove on its side. A pair of sliders are provided in the groove, and a clamping plate is provided on the bottom of each slider. A movable plate is provided between the two clamping plates, and the two clamping plates clamp the movable plate by locking. A pedal piece is provided on the other end of the movable plate, with the back of the pedal piece facing the push-pull force gauge. The pedal piece is used to install the pedal sleeve.

[0010] Beneficial effects: This utility model technology essentially changes human control to electronic control, eliminating subjective factors and greatly improving the repeatability and accuracy of pedal cover pull-out force detection. It is suitable for widespread promotion and is very practical for improving the push-pull force detection of current automotive pedal covers. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the utility model.

[0012] Figure 2 yes Figure 1 A three-dimensional image.

[0013] Figure 3 This is a structural diagram of the pedal kit.

[0014] Figure 4 This is a diagram of the clamping plate structure. Detailed Implementation

[0015] like Figure 1 As shown, a pedal sleeve pull-out force testing device includes a frame 1, a movable platform 2, a push-pull force gauge 3, a lifting mechanism 4, and a pedal sleeve fixture 5. The movable platform is fixed on the platform surface, and the push-pull force gauge can move forward and backward and left and right via the movable platform. The lifting mechanism is fixed on the platform surface, and the pedal sleeve fixture can move up and down via the lifting mechanism. The pedal sleeve fixture is used to fix the pedal sleeve, and the push-pull force gauge is used to apply a pushing force to the four corners of the pedal sleeve.

[0016] like Figure 2 As shown, the structure of the moving stage 2 includes a lower base 201, a horizontal lower lead screw 202 and a lower guide rod 203 inside the lower base, a meshing lower slider 204 on the lower lead screw, the lower slider being slidably connected to the lower guide rod, a lower servo motor 205 on the outer side of the lower base, the lower servo motor driving the lower lead screw, the lower slider being able to move left and right on the lower guide rod via the lower lead screw; the lower slider is used to fix an upper base 206, a horizontal upper lead screw 207 and an upper guide rod 208 inside the upper base, a meshing upper slider 209 on the upper lead screw, the upper slider being slidably connected to the upper guide rod, an upper servo motor 210 on the outer side of the upper base, the upper servo motor driving the upper lead screw, the upper slider being able to move back and forth on the upper guide rod via the upper lead screw, the upper slider being used to fix a push-pull force gauge; the use of a lead screw pair can precisely control the up and down displacement of the pedal piece, thereby improving the repeatability and accuracy of the pedal sleeve pull-out force detection;

[0017] To further explain the connection method of the lower lead screw and the lower guide rod: the two ends of the lower lead screw are fixed to the lower base through bearings, and the lower lead screw can rotate within the lower base; the lower guide rod is fixed to the lower base by a fixed connection method.

[0018] like Figure 2As shown, the push-pull force gauge 3 has a digital display function, which can display the force value;

[0019] like Figure 2 As shown, the lifting mechanism 4 has the following structure: it includes a lower support 401 and an upper support 402. A lead screw 403 and a guide rod 404 are vertically mounted on the lower support. The upper ends of the lead screw and the guide rod are connected to the upper support. A slider 405 is mounted on the lead screw and is slidably connected to the guide rod. A servo motor 406 is mounted on the top surface of the upper support. The servo motor drives the lead screw, and the slider can move back and forth on the guide rod via the lead screw. The slider is used to fix the pedal sleeve fixture. The use of a lead screw pair can precisely control the moving speed, which is beneficial to improving the repeatability and accuracy of the pedal sleeve pull-out force detection.

[0020] To further explain, the lower slider, upper slider, and slider have the same structure; the structure of the lower slider is described in detail: the end face of the lower slider is provided with a through threaded hole and a sliding hole, the lower slider engages with the threaded part of the lower lead screw through the threaded hole, and the lower slider is slidably connected to the lower guide rod through the sliding hole;

[0021] like Figure 3 and Figure 4 As shown, the structure of the pedal sleeve fixture 5 includes a support rod 501. One end of the support rod is fixedly connected to the slider in the lifting mechanism. The other end of the support rod has a sliding groove 502 on its side. The sliding groove is a blind groove. A pair of sliders 503 are provided in the sliding groove. The movement direction of the sliders is consistent with the left and right direction of the push-pull force gauge. The bottom of the two sliders is provided with a clamping plate 504 that is fixedly connected. A movable plate 505 is provided between the two clamping plates. The two clamping plates clamp the movable plate by locking. A pedal piece 506 is fixed on the other end of the movable plate. The back of the pedal piece faces the push-pull force gauge. The pedal piece is used to install the pedal sleeve. Further explanation of the locking method of the two clamping plates: Bolt holes are provided on the upper and lower ends of the two clamping plates. Fastening bolts 507 are provided in the bolt holes. Advantages of this structure: 1) The clamping plate is slidably connected to the support rod and the movable plate is fixed by clamping. This allows for flexible installation and removal of the pedal piece and fine adjustment of the left, right and height positions of the pedal piece. The overall structure is simple, the manufacturing cost is low, and the versatility is strong.

[0022] Instructions for use: The pedal sleeve is fitted onto the pedal plate. The other end of the movable plate is inserted between the two clamping plates. Tighten the fastening bolts on the two clamping plates to clamp the movable plate using the locking force of the metal clamping plates. The slider on the top of the two clamping plates is guided into the groove of the support rod. Operate the control handle to start the servo motor in the lifting mechanism to adjust the height of the pedal sleeve. Start the lower servo motor in the moving platform to adjust the left and right position of the push-pull force gauge so that the detection rod of the push-pull force gauge is aligned with the upper left corner of the pedal sleeve. Start the upper servo motor to drive the push-pull force gauge forward and forcefully push the upper left corner of the pedal sleeve, ensuring that the force is applied without affecting the pedal plate. The detection methods for the upper right, lower left, and lower right corners of the pedal sleeve are the same as for the upper left corner. The pushing force and movement speed of the push-pull force gauge must comply with the vehicle pedal sleeve testing specifications.

Claims

1. A device for testing the pull-out force of a pedal sleeve, comprising a test stand, characterized in that: It also includes a movable platform, a push-pull force gauge, a lifting mechanism, and a pedal fixture. The movable platform is fixed to the table surface of the frame, and the push-pull force gauge can move forward, backward, left, and right via the movable platform. The lifting mechanism is fixed to the platform surface of the frame, and the pedal sleeve fixture can move up and down through the lifting mechanism; the pedal sleeve fixture is used to fix the pedal sleeve, and the push-pull force gauge is used to apply pushing force to the four corners of the pedal sleeve; the structure of the moving platform includes: a lower base, a horizontal lower lead screw and a lower guide rod inside the lower base, a meshing lower slider on the lower lead screw, the lower slider being slidably connected to the lower guide rod, a lower servo motor on the outer side of the lower base, the lower servo motor being used to drive the lower lead screw, and the lower slider being able to move left and right on the lower guide rod through the lower lead screw; the lower slider is used to fix the upper base, a horizontal upper lead screw and an upper guide rod inside the upper base, an meshing upper slider on the upper lead screw, the upper slider being slidably connected to the upper guide rod, an upper servo motor on the outer side of the upper base, the upper servo motor being used to drive the upper lead screw, the upper slider being able to move back and forth on the upper guide rod through the upper lead screw, and the upper slider being used to fix the push-pull force gauge.

2. The pedal sleeve pull-out force testing device according to claim 1, characterized in that: The lifting mechanism comprises a lower support and an upper support. A lead screw and a guide rod are vertically mounted on the lower support. The upper ends of the lead screw and guide rod are connected to the upper support. A sliding block is mounted on the lead screw and is slidably connected to the guide rod. A servo motor is mounted on the top surface of the upper support. The servo motor drives the lead screw. The sliding block can move back and forth on the guide rod via the lead screw. The sliding block is used to fix the pedal sleeve fixture.

3. The pedal sleeve pull-out force testing device according to claim 1 or 2, characterized in that: The structure of the pedal sleeve fixture includes a support rod, one end of which is fixedly connected to the slider in the lifting mechanism. The other end of the support rod has a groove on its side, and a pair of sliders are provided in the groove. Each slider has a clamping plate at its bottom, and a movable plate is provided between the two clamping plates. The two clamping plates clamp the movable plate by locking. The other end of the movable plate has a pedal piece, the back of which faces the push-pull force gauge. The pedal piece is used to install the pedal sleeve.

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