Pedal assembly pad tube mistake proofing gauge

By designing a fault-prevention inspection tool for pedal assembly pad tubes, and utilizing a mounting base plate, positioning and placement components, automatic inspection of the pad tubes is achieved, solving the problem of high cost of existing equipment and improving inspection efficiency and quality.

CN122361276APending Publication Date: 2026-07-10CHONGQING CHANGRONG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING CHANGRONG MASCH CO LTD
Filing Date
2026-05-25
Publication Date
2026-07-10

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Abstract

This invention discloses a fault-prevention inspection tool for pedal assembly pad tubes, comprising a mounting base plate for installing the entire tool. The mounting base plate is equipped with a positioning component for accurately placing the pedal assembly and a detection component for detecting whether the pad tube has incomplete or poor welding. The detection component includes at least three clamping components for pressing the pedal assembly. Each clamping component includes a clamping cylinder mounted on the mounting base plate. All clamping cylinders are equipped with an air supply line for operating the clamping cylinders, and a triggering component is provided on the air supply line. When the pedal assembly is accurately placed on the positioning component, if the pad tube welding is qualified, the triggering component will connect the air supply line, thereby enabling the clamping components to press the pedal assembly. The overall structure is simple, and fault-prevention detection of the pad tube can be achieved without the need for separately installed components, thus reducing equipment costs.
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Description

Technical Field

[0001] This invention belongs to the field of pedal assembly testing technology, specifically relating to a pedal assembly pad tube error prevention inspection tool. Background Technology

[0002] The pedal assembly gasket is a crucial component in vehicle installation. During the welding process, workers may make mistakes such as incomplete welds or weak welds. Currently, there are two methods for checking these gaskets: one is manual visual inspection, and the other is using inspection equipment. Existing inspection equipment clamps the entire pedal assembly and uses sensors to detect incomplete or weak welds on the gasket. This requires a separate component within the pedal assembly inspection fixture to prevent errors in the gasket's inspection, which increases equipment costs. Summary of the Invention

[0003] This invention proposes a fault-proofing inspection tool for pedal assembly pad tubes. The overall structure is simple and can achieve fault-proofing inspection of pad tubes without the need for separate components, which helps to reduce equipment costs.

[0004] Therefore, the technical solution adopted by the present invention is as follows: a pedal assembly pad tube error prevention inspection tool, including a mounting base plate for installing the entire inspection tool, wherein the mounting base plate is provided with a positioning and placement component for accurately placing the pedal assembly and a detection component for detecting whether the pad tube has a missing weld or a poor weld, wherein the detection component includes at least three clamping components for clamping the pedal assembly, wherein the clamping component includes a clamping cylinder disposed on the mounting base plate, wherein all clamping cylinders are equipped with an air supply line for realizing the operation of the clamping cylinder, and a triggering component is disposed on the air supply line;

[0005] When the pedal assembly is accurately placed on the positioning component, if the gasket is properly welded, the air supply line can be connected through the trigger component, thereby enabling the pressing component to press the pedal assembly. If the gasket has a missing weld or a poor weld, the air supply line cannot be connected through the trigger component, and the pressing component cannot press the pedal assembly.

[0006] As a preferred embodiment of the above solution, the positioning and placement component includes a positioning seat on the mounting base plate, and a positioning pin is provided on the positioning seat at the position corresponding to each positioning hole on the pedal assembly. The positioning pin is configured to be smaller at the top and larger at the bottom, and the upper end of the positioning pin passes through the positioning hole on the pedal assembly.

[0007] Further preferably, the triggering component includes a trigger rod that is vertically arranged corresponding to the pad tube. A lever-type mechanical valve is provided on the air supply line. The lever-type mechanical valve is mounted on the mounting base plate through a lever-type mechanical valve seat. All lever-type mechanical valves are connected in series through air pipes. The lower end of the trigger rod passes through the mounting base plate and contacts the trigger end of the lever-type mechanical valve. The trigger rod can slide up and down relative to the mounting base plate. When the pedal assembly is placed, the pad tube contacts the upper end of the trigger rod. Under the gravity of the pedal assembly, the trigger rod moves downward, thereby pushing the trigger end of the lever-type mechanical valve to open the lever-type mechanical valve, thus connecting the air supply line.

[0008] In a further preferred embodiment, the gas supply pipeline also includes a reversing valve disposed at the gas supply end for realizing the intake and exhaust of gas.

[0009] Further preferably, the opening groove is configured as a V-shaped groove and the bottom of the V-shaped groove is provided with a clearance groove.

[0010] Further preferably, the clamping assembly also includes a hinge seat disposed on the mounting base plate, a hinge is hinged on the hinge seat, a clamping block is hinged to the telescopic end of the clamping cylinder, and the other end of the hinge is hinged to the middle of the clamping block.

[0011] The beneficial effects of this invention are:

[0012] 1) By using the detection and positioning components, the system can automatically detect whether the pad tube is missing or detached from the weld, ensuring that any omissions during the pedal assembly process are controlled within a reasonable range. This effectively avoids quality problems in welding and thus improves the efficiency and quality of pedal assembly.

[0013] 2) The whole structure is simple. You only need to observe whether the cylinder is clamped to determine whether the pad tube is missing or detached from the weld. At the same time, the present invention can be used as a clamping tool during pedal assembly inspection. While clamping the pedal assembly during inspection, it can prevent errors in the pad tube without adding parts, thereby reducing equipment costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the pedal assembly of the present invention.

[0016] Figure 3 This is a schematic diagram of the present invention. Figure 2 .

[0017] Figure 4 This is a schematic diagram of the triggering component in the present invention. Figure 1 .

[0018] Figure 5 This is a schematic diagram of the triggering component in the present invention. Figure 2 (The pedal assembly is pressed down).

[0019] Reference numerals: 1. Mounting base plate, 2. Clamping cylinder, 3. Positioning seat, 4. Positioning pin, 5. Gasket tube, 6. Trigger rod, 7. Lever-type mechanical valve, 8. Lever-type mechanical valve seat, 9. Directional valve, 10. Hinge seat, 11. Hinge, 12. Clamping block. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0021] like Figure 1-5 As shown, a pedal assembly pad tube error-proofing inspection fixture mainly consists of a mounting base plate 1, a positioning and placement component, and a detection component. The mounting base plate enables the installation or placement of the entire fixture, and during placement, foot pads are provided on the mounting base plate for placement on a flat surface. Both the positioning and placement component and the detection component are mounted on the mounting base plate 1. The positioning and placement component ensures accurate placement of the pedal assembly, while the detection component detects whether the pad tube has any incomplete or poor soldering.

[0022] Specifically, the testing assembly includes at least three clamping components for clamping the pedal assembly. Each clamping component includes a clamping cylinder 2 mounted on the mounting base plate 1, and is also equipped with an air supply line for operating the clamping cylinder 2. A triggering component is installed on the air supply line. When the pedal assembly is accurately placed on the positioning assembly, if the gasket welding is satisfactory, the triggering component will connect the air supply line, thus enabling the clamping components to clamp the pedal assembly. If the gasket has incomplete welding or poor welding, the triggering component will not connect the air supply line, and the clamping components will fail to clamp the pedal assembly.

[0023] The positioning and placement component includes a positioning seat 3 mounted on the mounting base plate 1. A positioning pin 4 is provided on the positioning seat 3 at the position corresponding to each positioning hole on the pedal assembly. The positioning pin 4 is set with the upper end smaller than the lower end, and the upper end of the positioning pin 4 passes through the positioning hole on the pedal assembly. The top surface of the larger end of the positioning pin contacts the bottom surface of the pedal assembly to achieve support for the pedal assembly.

[0024] The triggering assembly includes a trigger rod 6 that is vertically arranged corresponding to the gasket 5. A lever-type mechanical valve 7 is provided on the air supply line. The lever-type mechanical valve 7 is mounted on the mounting base plate 1 through a lever-type mechanical valve seat 8. All lever-type mechanical valves 7 are connected in series through air pipes. The lower end of the trigger rod 6 passes through the mounting base plate 1 and contacts the trigger end of the lever-type mechanical valve 7. The trigger rod 6 can slide up and down relative to the mounting base plate 1.

[0025] Since the gasket is located below the positioning hole of the pedal assembly, a through hole is provided in the positioning pin for the trigger rod to move up and down. Initially, the height of the upper end of the trigger rod above the large end of the positioning pin matches the height of the gasket. When placing the pedal assembly, if the gasket is properly welded, the trigger rod can move downwards under the weight of the pedal assembly until the gasket is supported by the large end of the positioning pin. As the trigger rod moves downwards, it pushes the trigger end of the lever-type mechanical valve 7 downwards, thus opening the lever-type mechanical valve 7 and connecting the air supply line. When the pedal assembly is removed, the lever-type mechanical valve returns to its original position, pushing the trigger rod upwards back to its original position.

[0026] The clamping assembly also includes a hinge seat 10 mounted on the mounting base plate 1, a hinge 11 hinged to the hinge seat 10, a clamping block 12 hinged to the telescopic end of the clamping cylinder 2, and the other end of the hinge 11 hinged to the middle of the clamping block 12. The inlet and outlet pipes of each clamping cylinder are connected in parallel through a T-junction.

[0027] To ensure air supply, the air supply line includes a reversing valve 9 located at the air supply end for inlet and outlet air. After the pedal assembly is placed, the reversing valve is activated to supply air to the air supply line. When the gasket is correctly welded, the entire air supply line is connected, and the clamping cylinder operates to clamp the pedal assembly. After testing, the reversing valve is activated again to retract the extension end of the clamping cylinder, facilitating the removal of the pedal assembly for the next operation.

Claims

1. A pedal assembly pad tube error prevention inspection tool, characterized in that: The fixture includes a mounting base plate (1) for installing the entire fixture. The mounting base plate (1) is provided with a positioning and placement assembly for accurately placing the pedal assembly and a detection assembly for detecting whether the pad tube has a missing weld or a false weld. The detection assembly includes at least three clamping assemblies for clamping the pedal assembly. The clamping assembly includes clamping cylinders (2) provided on the mounting base plate (1). All clamping cylinders (2) are equipped with an air supply line for realizing the operation of the clamping cylinder. A triggering assembly is provided on the air supply line. When the pedal assembly is accurately placed on the positioning component, if the gasket is properly welded, the air supply line can be connected through the trigger component, thereby enabling the pressing component to press the pedal assembly. If the gasket has a missing weld or a poor weld, the air supply line cannot be connected through the trigger component, and the pressing component cannot press the pedal assembly.

2. The pedal assembly pad tube error prevention inspection tool according to claim 1, characterized in that: The positioning and placement assembly includes a positioning seat (3) on the mounting base plate (1). The positioning seat (3) is provided with a positioning pin (4) at the position corresponding to each positioning hole on the pedal assembly. The positioning pin (4) is set to be smaller at the top and larger at the bottom, and the upper end of the positioning pin (4) passes through the positioning hole on the pedal assembly.

3. The pedal assembly pad tube error prevention inspection tool according to claim 1, characterized in that: The triggering assembly includes a trigger rod (6) that is vertically arranged corresponding to the pad tube (5). A lever-type mechanical valve (7) is provided on the air supply line. The lever-type mechanical valve (7) is mounted on the mounting base plate (1) through a lever-type mechanical valve seat (8). All lever-type mechanical valves (7) are connected in series through air pipes. The lower end of the trigger rod (6) passes through the mounting base plate (1) and contacts the trigger end of the lever-type mechanical valve (7). The trigger rod (6) can slide up and down relative to the mounting base plate (1). When the pedal assembly is placed, the pad tube contacts the upper end of the trigger rod. Under the gravity of the pedal assembly, the trigger rod (6) moves downward, thereby pushing the trigger end of the lever-type mechanical valve (7) to open the lever-type mechanical valve (7) and thus connect the air supply line.

4. The pedal assembly pad tube error prevention inspection tool according to claim 1, characterized in that: The gas supply pipeline also includes a reversing valve (9) installed at the gas supply end to realize the intake and exhaust of gas.

5. The pedal assembly pad tube error prevention inspection tool according to claim 1, characterized in that: The clamping assembly also includes a hinge seat (10) disposed on the mounting base plate (1), a hinge (11) is hinged on the hinge seat (10), a clamping block (12) is hinged to the telescopic end of the clamping cylinder (2), and the other end of the hinge (11) is hinged to the middle of the clamping block (12).