A testing device for a moving spring welding equipment

Abstract

This utility model relates to a testing device for a moving spring welding equipment, comprising a transport frame and a testing station. The transport frame is used to transport semi-finished products to the testing station to test the accuracy of the position and size of the silver contacts welded in the previous stage. The testing station is installed on one side of the transport frame and includes a positioning mechanism located at the top of the transport frame and a testing mechanism located at the bottom of the transport frame. The positioning mechanism is used to position, clamp, and limit the workpiece, while the testing mechanism is used to test the accuracy of the silver contact welding position. This utility model has a compact structure, effectively preventing workpiece displacement during the testing process, improving testing accuracy and production efficiency, and is suitable for welding quality testing of small precision components such as moving springs.

Description

Technical Field

[0001] This utility model relates to the field of moving spring processing, and specifically to a testing device for moving spring welding equipment. Background Technology

[0002] As a crucial component in low-voltage electrical appliances, relays, switches, and other electrical products, the moving reed's machining precision and welding quality directly affect the product's electrical performance and service life. In existing moving reed manufacturing processes, it is typically necessary to inspect the welding position between the silver contact and the moving reed to ensure the reliability and consistency of the weld. Current technologies often employ manual visual inspection or simple photoelectric detection methods for welding position inspection, which has the following shortcomings:

[0003] First, manual inspection relies on operator experience and visual judgment, resulting in low accuracy, low efficiency, and a high risk of missed or false detections, making it difficult to meet the high-precision and high-consistency production requirements. Second, while some inspection methods using photoelectric sensors improve automation, the small size and complex structure of the moving springs and silver contacts make photoelectric detection susceptible to minor workpiece displacement and glare interference, leading to unstable detection or misjudgments. Furthermore, some inspection devices lack effective limiting and fixing mechanisms for workpiece positioning; even minor workpiece displacement during inspection can reduce accuracy, affecting the quality control of the final product.

[0004] Therefore, there is an urgent need for a simple, accurate, reliable, and highly automated moving spring welding inspection device to improve the accuracy and efficiency of moving spring welding inspection and meet the high requirements of modern electrical products for quality and automated production. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides a testing device for a moving spring welding equipment, which can effectively overcome the shortcomings of the prior art.

[0006] This utility model is achieved through the following technical solution: a detection device for a moving spring welding equipment, comprising:

[0007] A transport frame is used to transport semi-finished products to an inspection station for inspecting the accuracy of the position and size of the silver contacts welded in the previous stage.

[0008] An inspection station is installed on one side of the transport frame, and the inspection station includes:

[0009] A positioning mechanism, located at the top of the transport mechanism, is used to position and press the workpiece and to limit and fix it.

[0010] The testing mechanism is located at the bottom of the transport mechanism and is positioned corresponding to the positioning mechanism. The testing mechanism is used to test the accuracy of the silver contact welding position.

[0011] As a preferred technical solution, the positioning mechanism includes:

[0012] A positioning cylinder is fixedly mounted on a mounting bracket. One or more fixing blocks are installed at the bottom of the positioning cylinder, and the fixing blocks are set to correspond to the silver contact welding positions.

[0013] As a preferred technical solution, the fixing block is two blocks instead of one, and the distance between the two fixing blocks is equal to the distance between the welding positions of the two silver contacts.

[0014] As a preferred technical solution, the testing institution includes:

[0015] A detection cylinder, which is fixedly mounted on a mounting bracket;

[0016] A positioning probe is fixedly mounted on the mounting plate at the output end of the detection cylinder, and the positioning probe is set to correspond to the product silver contact at the top.

[0017] As a preferred technical solution, the bottom of the transport frame is provided with a clearance hole corresponding to the position of the silver contact of the product, and the positioning probe passes through the clearance hole and contacts the position of the silver contact.

[0018] The beneficial effects of this utility model are: this utility model uses a positioning cylinder and a fixing block to limit and press the workpiece, which can effectively prevent the workpiece from shifting during the inspection process and ensure the stability and accuracy of the inspection.

[0019] This invention enables precise detection of the welding position of silver contacts by setting a detection cylinder to drive the positioning probe, overcoming the shortcomings of low accuracy and large error of traditional visual inspection or simple photoelectric inspection, and greatly improving the detection accuracy.

[0020] This utility model has a compact structure, making it easy to install in existing automated production lines, thereby improving the level of production automation, reducing manual intervention, and increasing production efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Conveyor frame; 3. Positioning cylinder; 7. Fixing block; 6. Detection cylinder; 4. Mounting bracket; 5. Positioning probe; 8. Clearance hole; 2. Workpiece. Detailed Implementation

[0026] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0027] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0028] like Figure 1 and Figure 2 As shown, this utility model discloses a testing device for a moving spring welding equipment, comprising a transport frame 1, a testing station, a positioning mechanism, and a testing mechanism. The transport frame 1 is mainly used to transport the semi-finished product after the moving spring welding process is completed to the testing station, so as to inspect the position and size of the silver contacts welded in the previous step, thereby ensuring product quality. The transport frame 1 is generally made of a metal frame, with a stable structure, capable of carrying and transporting the arranged semi-finished products during continuous production, and its upper surface is flat, facilitating the smooth movement of the workpiece 2. To facilitate testing operations, a workpiece 2 bearing area for positioning and testing is provided on the side of the transport frame 1 near the testing station, and this bearing area corresponds to the position of the testing station.

[0029] The inspection station is installed on one side of the transport frame 1 and is tightly connected to it, facilitating accurate alignment of the semi-finished product with the inspection position after it is transported to the designated location. The inspection station contains a positioning mechanism and an inspection mechanism. The positioning mechanism, located above the inspection station, is used to position, clamp, and limit the workpiece 2 to prevent displacement during inspection and thus maintain accuracy. The inspection mechanism, located below the inspection station and corresponding vertically to the positioning mechanism, is used to inspect the accuracy of the silver contact welding position.

[0030] In this specific embodiment, the positioning mechanism includes a positioning cylinder 3, which is bolted to a mounting bracket 4 above the inspection station. The positioning cylinder 3 can be a standard cylinder commonly found in the market. Its output end is connected to one or more fixing blocks 7, which move downwards to press the workpiece 2 when the cylinder is activated, preventing displacement or tilting of the workpiece 2 during inspection and ensuring stable and reliable inspection. The fixing blocks 7 are typically made of metal, with a chrome-plated surface to improve wear resistance, and can be made into different shapes to adapt to the contour or structure of the workpiece 2 surface. In a preferred embodiment, there are two fixing blocks 7 arranged parallel to each other, with the distance between them matching the distance between the two silver contact welding positions in the inspected product. This arrangement ensures that when pressing the workpiece 2, the two fixing blocks 7 precisely press the two silver contact welding areas, further improving positioning accuracy. When the positioning cylinder 3 is working, it pneumatically drives the fixing block 7 to move downward, applying appropriate pressure to the workpiece 2 and fixing the workpiece 2. After the inspection is completed, the positioning cylinder 3 retracts, driving the fixing block 7 to rise to the initial position, preparing for the inspection of the next workpiece 2.

[0031] The detection mechanism is located below the transport frame 1 and works in conjunction with the positioning mechanism to complete the detection function. In this specific embodiment, the detection mechanism includes a detection cylinder 6 and a positioning probe 5. The detection cylinder 6 is fixed to the mounting bracket 4 at the bottom of the transport frame 1 via a mounting seat. A mounting plate is connected to the output end of the detection cylinder 6, and the positioning probe 5 is fixedly mounted on this mounting plate. The positioning probe 5 has a slender rod-like structure with a rounded or conical tip to ensure precise contact with the silver contact and reduce damage to the surface of the workpiece 2. When the detection cylinder 6 operates, it drives the positioning probe 5 to move vertically up and down, allowing the positioning probe 5 to accurately probe into the corresponding detection position on the workpiece 2 to check whether the height or positional dimensions of the silver contact meet the process requirements. The probe's stroke length and detection sensitivity can be adjusted according to different product requirements.

[0032] To achieve precise contact between the probe and workpiece 2, the transport frame 1 is provided with a clearance hole 8 at the position of the silver contact of the corresponding product. The clearance hole 8 is usually a round or rectangular hole, and its diameter or length and width are slightly larger than the outer diameter of the positioning probe 5 to ensure that the probe can pass smoothly through the clearance hole 8 and contact the silver contact position above. The perimeter of the clearance hole 8 can be chamfered to reduce friction or interference generated when the probe moves up and down. During the detection process, after the workpiece 2 is firmly pressed by the fixing block 7 of the positioning mechanism, the detection cylinder 6 pushes the positioning probe 5 upward. The positioning probe 5 passes through the clearance hole 8 at the bottom of the transport frame 1 until it contacts the silver contact position on the workpiece 2. The height or offset of the silver contact welding position is obtained by detecting the displacement of the probe, contact feedback, or through a connected displacement sensor. If the detection result exceeds the preset tolerance range, the system can send a signal to the subsequent process to mark the workpiece 2 as a defective product, which is convenient for subsequent sorting or rejection.

[0033] This invention features a compact structure and precise action coordination, effectively ensuring the positioning reliability and detection accuracy of the inspection process. It is particularly suitable for the welding quality inspection of small precision parts such as moving springs. By employing automatic drive of the positioning cylinder 3 and the detection cylinder 6, it not only reduces manual intervention and improves production efficiency but also significantly enhances the stability and accuracy of the inspection, making it highly valuable for widespread application.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A testing device for a moving spring welding equipment, characterized in that, include: The transport frame (1) is used to transport semi-finished products to the inspection station for detecting the accuracy of the position and size of the silver contact points welded in the previous process. An inspection station is installed on one side of the transport frame (1), and the inspection station includes: A positioning mechanism is located at the top of the transport mechanism and is used to position and press the workpiece (2) and limit and fix it. The testing mechanism is located at the bottom of the transport mechanism and is positioned corresponding to the positioning mechanism. The testing mechanism is used to test the accuracy of the silver contact welding position.

2. The apparatus according to claim 1, wherein: The positioning mechanism includes: Positioning cylinder (3) is fixedly mounted on a mounting bracket (4). One or more fixing blocks (7) are installed at the bottom of the positioning cylinder (3). The one or more fixing blocks (7) are set corresponding to the silver contact welding position.

3. The detection device for the moving spring welding equipment according to claim 2, characterized in that: The fixing block (7) is more than one, and there are two fixing blocks (7). The distance between the two fixing blocks (7) is equal to the distance between the welding positions of the two silver contacts.

4. The apparatus according to claim 1, wherein: The testing institutions include: The detection cylinder (6) is fixedly mounted on a mounting bracket (4); The positioning probe (5) is fixedly installed on the mounting plate at the output end of the detection cylinder (6), and the positioning probe (5) is set to correspond to the product silver contact at the top.

5. The apparatus according to claim 4, wherein: The bottom of the transport frame (1) is provided with a clearance hole (8) corresponding to the position of the silver contact of the product. The positioning probe (5) passes through the clearance hole (8) and contacts the position of the silver contact.

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