Steel plate spring heat treatment defect detection equipment
By combining an ultrasonic flaw detector with conveyor rollers and guide rollers, the problem of accuracy in detecting internal defects in steel leaf springs was solved, achieving efficient and reliable defect detection and improving the product qualification rate.
Patent Information
- Application Number
- CN202422752706.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing technologies cannot accurately detect internal defects in leaf springs. Traditional testing methods suffer from missed detections and misjudgments, and are unable to detect internal defects.
The design employs an ultrasonic flaw detector combined with conveyor rollers and guide rollers. The steel leaf springs are conveyed through a conveyor trough, and the ultrasonic flaw detector moves under the drive of a movable plate to detect internal defects in the steel leaf springs. The guide rollers and rotating rollers limit the movement of the steel plates to ensure the stability and accuracy of the detection.
It enables accurate detection of internal defects in leaf springs, improving product pass rate and testing efficiency, and reducing missed detections and misjudgments.
Smart Images
Figure CN223955486U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to a kind of defect detection equipment, specifically related to a steel plate spring heat treatment defect detection equipment. BACKGROUND
[0002] In modern industrial production, steel plate spring is widely used in automobile, machinery and other fields as an important part. Heat treatment of steel plate spring is one of the key processes to improve its performance and quality. Before assembly, the single steel plate of steel plate spring is usually heat treated. During the heat treatment process, various defects are often produced.
[0003] Traditional steel plate spring heat treatment defect detection means has many deficiencies. Common visual detection method depends on the experience and subjective judgment of the detector, and the accuracy and reliability are difficult to guarantee, and it is easy to miss detection and misjudgment.
[0004] Some methods using simple physical detection tools, such as caliper, micrometer, etc. can only detect obvious surface defects, and have no effect on internal defects of steel plate spring, so it is impossible to realize accurate detection of internal defects of steel plate spring. INVENTION CONTENTS
[0005] The utility model aims at providing a kind of steel plate spring heat treatment defect detection equipment, solve the problem of existing technology, such as the internal defect of steel plate spring cannot be accurately detected.
[0006] The above technical purpose of the utility model is mainly solved by the following technical scheme: a kind of steel plate spring heat treatment defect detection equipment, including first transmission base, the first transmission base top surface is equipped with the conveying groove being set along the direction of transmission, the conveying groove is equipped with several conveying rollers being set horizontally along the length direction, the conveying roller both ends are equipped with several guide rollers being distributed along the direction of transmission and being set vertically, the interval between every two opposite setting guide rollers corresponds with the width of steel plate spring, the position of the feeding port of the conveying groove is equipped with movable plate being movable up and down above the conveying roller, the movable plate bottom surface is equipped with ultrasonic flaw detector for detecting the internal defect of steel plate spring, the conveying roller top side protrudes to the conveying groove above.
[0007] As a further preferred technical scheme of the utility model, the first transmission base is equipped with positioning plate being rotatably connected with the upper end of guide roller, and the feeding port of the conveying groove is adjacent to two guide rollers on the same side.
[0008] As a further preferred technical scheme of the utility model, the movable plate bottom surface is equipped with rotating roller on both sides corresponding to ultrasonic flaw detector, and the rotating roller is parallelly arranged with conveying roller.
[0009] As a further preferred technical scheme of the utility model, the positioning plate on both sides of the conveying groove is equipped with a fixing frame, the top of the fixing frame is equipped with a driving cylinder, and the cylinder rod of the driving cylinder passes through the fixing frame and is connected with the movable plate.
[0010] As a further preferred technical scheme of the utility model, the movable plate is equipped with a fixing cylinder on the top surface, the end surface of the cylinder rod of the driving cylinder is equipped with a fixing column extending into the fixing cylinder, and the fixing cylinder is equipped with an extension spring abutting against the end surface of the fixing column.
[0011] As a further preferred technical scheme of the utility model, the fixing cylinder is equipped with an annular inner protrusion at the inner side of the upper end, the fixing column is equipped with an annular outer protrusion at the outer side of the end portion, and the end surface of the cylinder rod of the driving cylinder can abut against the upper end surface of the fixing cylinder.
[0012] Therefore, the utility model has the characteristics of precisely detecting the internal defects of the steel plate spring and improving the product qualification rate. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic view of the utility model;
[0014] Figure 2 is Figure 1 a partial structure sectional view of the utility model;
[0015] Figure 3 is Figure 1 a top structure local sectional view of the utility model. DETAILED DESCRIPTION
[0016] The technical scheme of the utility model will be further specifically explained by examples and in combination with the drawings.
[0017] As Figures 1-3As shown, a steel plate spring heat treatment defect detection device includes a first conveying base 1, a conveying groove 11 is arranged on the top surface of the first conveying base 1 in the conveying direction, a plurality of conveying rollers 111 are arranged horizontally along the length direction in the conveying groove 11, a plurality of guide rollers 12 are arranged vertically and distributed in the conveying direction at both ends of the conveying roller 111, the spacing between every two opposite guide rollers 12 corresponds to the width of the steel plate spring, a movable plate 2 is arranged above the conveying roller 111 and close to the feeding port 112 of the conveying groove 11, an ultrasonic flaw detector 21 for detecting internal defects of the steel plate spring is arranged on the bottom surface of the movable plate 2, the top side of the conveying roller 111 protrudes above the conveying groove 11, a positioning plate 13 is arranged on the first conveying base 1 and rotationally connected with the upper end of the guide roller 12, and the two guide rollers 12 on the same side are arranged adjacent to each other at the feeding port 112 of the conveying groove 11.
[0018] The above ultrasonic flaw detector is a product available on the market and is prior art, which will not be described here. When the ultrasonic flaw detector moves downward to detect the single steel plate close to the top surface of the single steel plate, the deviation of the steel plate can be avoided to affect the detection range of the ultrasonic flaw detector, so that the steel plate can be detected from the beginning to the end by the ultrasonic flaw detector, the comprehensiveness and accuracy of defect detection are ensured, and the detection efficiency and detection qualification rate are improved.
[0019] As shown in the drawings, Figure 2As shown, the bottom surface of the movable plate 2 is provided with rotating rollers 22 corresponding to both sides of the ultrasonic flaw detector 21, the rotating rollers 22 are arranged in parallel with the conveying rollers 111, the positioning plates 13 on both sides of the conveying groove 11 are provided with fixing frames 23, the top of each fixing frame 23 is provided with a driving cylinder 24, the cylinder rod of the driving cylinder 24 penetrates through the fixing frame 23 and is connected with the movable plate 2, the top surface of the movable plate 2 is provided with a fixing cylinder 25, the end surface of the cylinder rod of the driving cylinder 24 is provided with a fixing column 241 extending into the fixing cylinder 25, the fixing cylinder 25 is provided with an extension spring 251 abutting against the end surface of the fixing column 241, the inner side of the upper end of the fixing cylinder 25 is provided with an annular inner protrusion 252, the outer side of the end of the fixing column 241 is provided with an annular outer protrusion 242 matched with the annular inner protrusion 252, and the end surface of the cylinder rod of the driving cylinder 24 can abut against the top surface of the fixing cylinder 25; the rotating rollers are located on both sides of the ultrasonic flaw detector and are parallel with the conveying rollers, the movable plate is driven downward by the driving cylinder, so that the rotating rollers are pressed onto the top surface of the steel plate, the positioning of the steel plate is increased, the deviation of the steel plate is avoided when the steel plate moves, the stability of the steel plate is ensured when the steel plate moves, and the detection of the ultrasonic flaw detector is more stable, reliable and accurate; when the steel plate is placed into the conveying groove, the driving cylinder is started, the movable plate is controlled, the movable plate is driven downward, the movable plate drives the rotating rollers and the ultrasonic flaw detector to move downward and close to the steel plate, until the rotating rollers are pressed onto the steel plate, the conveying rollers push the bottom of the steel plate to move, the positioning plates position both sides of the steel plate, and the positioning plates rotate with the movement of the steel plate, the ultrasonic flaw detector stably and accurately detects the steel plate during the movement of the steel plate.
[0020] When the movable plate is pressed downward by the driving cylinder, the fixing column at the end of the cylinder rod of the driving cylinder moves into the fixing cylinder, the extension spring is contracted, the movable plate and the rotating rollers can keep pressing the steel plate, the elastic extension force between the cylinder rod of the driving cylinder and the movable plate is increased, the damage of the rotating rollers, the ultrasonic flaw detector or the steel plate caused by excessive pressing force of the driving cylinder is avoided, the self-adaptive ability of the movable plate when being pressed downward is increased, the rotating rollers and the ultrasonic flaw detector can safely and reliably press and detect the steel plate, and the annular inner protrusion and the annular outer protrusion are matched and arranged, the mutual positioning of the fixing column and the fixing cylinder is realized, and the relative movement and the escape of the fixing column and the fixing cylinder are avoided.
[0021] The above embodiment is a preferred implementation scheme of the utility model, in addition to this, the utility model can be realized in other ways, under the premise of not departing from the technical scheme concept, any obvious replacement is within the protection scope of the utility model.
Claims
1. A steel plate spring heat treatment defect detection device, comprising a first conveying base (1), a conveying groove (11) is arranged on the top surface of the first conveying base (1) in the conveying direction, and a plurality of conveying rollers (111) are arranged in the length direction and horizontally in the conveying groove (11), characterized in that: The conveying roller (111) is provided with a plurality of guide rollers (12) vertically arranged along the conveying direction at both ends, the interval between every two oppositely arranged guide rollers (12) corresponds to the width of the leaf spring, a movable plate (2) is arranged above the conveying roller (111) near the feeding port (112) of the conveying groove (11), an ultrasonic flaw detector (21) for detecting internal defects of the leaf spring is arranged on the bottom surface of the movable plate (2), and the top side of the conveying roller (111) protrudes above the conveying groove (11).
2. The steel spring heat treatment defect detection apparatus of claim 1, wherein: The first conveying base (1) is provided with a positioning plate (13) rotatably connected to the upper end of the guide roller (12), and the feeding port (112) of the conveying groove (11) is adjacent to two guide rollers (12) on the same side.
3. The steel spring heat treatment defect detection apparatus of claim 1, wherein: The bottom surface of the movable plate (2) is provided with a rotating roller (22) corresponding to both sides of the ultrasonic flaw detector (21), and the rotating roller (22) is arranged in parallel with the conveying roller (111).
4. The steel spring heat treatment defect detection apparatus of claim 2, wherein: The positioning plate (13) on both sides of the conveying groove (11) is provided with a fixing frame (23), the top of the fixing frame (23) is provided with a driving cylinder (24), the cylinder rod of the driving cylinder (24) penetrates through the fixing frame (23) and is connected with the movable plate (2).
5. The steel spring heat treatment defect detection apparatus of claim 4, wherein: The top surface of the movable plate (2) is provided with a fixing cylinder (25), the end surface of the cylinder rod of the driving cylinder (24) is provided with a fixing column (241) extending into the fixing cylinder (25), and the fixing cylinder (25) is provided with a telescopic spring (251) abutting against the end surface of the fixing column (241).
6. The steel spring heat treatment defect detection apparatus of claim 5, wherein: The inner side of the upper end of the fixing cylinder (25) is provided with an annular inner protrusion (252), the outer side of the end portion of the fixing column (241) is provided with an annular outer protrusion (242) matched with the annular inner protrusion (252), and the end surface of the cylinder rod of the driving cylinder (24) can abut against the upper end surface of the fixing cylinder (25).