A strip spring welding quality detection device

Abstract

The utility model discloses a strip spring welding quality detection device belongs to welding detection equipment technical field, including frame, conveying module and detection mechanism, and conveying module sets up on the frame, and detection mechanism includes mounting bracket, lift module, translation module, probe support and detection probe, and mounting bracket sets up on the frame, and lift module sets up on the mounting bracket, and translation module is supported on lift module through first sliding block, and translation module sets up horizontally, and probe support is supported on translation module through second sliding block, and detection probe sets up in the lower extreme of probe support. Its simple structure, convenient to use, detection mechanism can carry out the detection to the spring height and position of strip spring, judges the welding quality of strip spring from multiple dimensions, and the reliability of detection is preferably ensured. The shearing mechanism can cut off the unqualified spring, and it is convenient for the subsequent blanking station to quickly identify the qualified product and unqualified product, and it is convenient for accurate classification and placement.

Description

Technical Field

[0001] This utility model relates to the technical field of welding inspection equipment, specifically to a strip spring welding quality inspection device. Background Technology

[0002] The grid is a crucial component of nuclear fuel assemblies, serving to clamp and position fuel rods and maintain their center-to-center distance. Grids are typically assembled from multiple spring strips. The production of these spring strips involves multiple processing and inspection steps, with inspection being a critical step that ensures product quality. Traditional welding quality inspection relies primarily on manual visual inspection or point-to-point detection using single sensors, resulting in low efficiency, high missed detection rates, and poor consistency. Especially in mass production, manual inspection struggles to meet the requirements of high precision and high cycle time. Furthermore, existing inspection equipment often lacks integrated defective product handling capabilities, necessitating manual sorting of defective workpieces after inspection, further reducing production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a strip spring welding quality inspection device, which has a simple structure, is easy to use, and can effectively improve the above-mentioned problems.

[0004] The embodiments of this utility model are implemented as follows:

[0005] This utility model provides a strip spring welding quality inspection device, including a frame, a conveying module, and an inspection mechanism. The conveying module is mounted on the frame. The inspection mechanism includes a mounting frame, a lifting module, a translation module, a probe bracket, and an inspection probe. The mounting frame is mounted on the frame, the lifting module is mounted on the mounting frame, the translation module is supported on the lifting module by a first slider, the translation module is horizontally positioned, the probe bracket is supported on the translation module by a second slider, and the inspection probe is located at the lower end of the probe bracket.

[0006] Furthermore, the probe bracket is a U-shaped bracket, the horizontal side of the U-shaped bracket is connected to the second slider, the two vertical sides of the U-shaped bracket face downwards, and the number of detection probes is two, with the two detection probes respectively disposed on the inner side of the lower end of the two vertical sides of the U-shaped bracket.

[0007] Furthermore, the mounting frame is also equipped with a shearing mechanism, which includes a shearing cylinder, a shear support plate, and a pneumatic shear. The shearing cylinder is mounted on the mounting frame, the shear support plate is mounted on the piston rod of the shearing cylinder, and the pneumatic shear is mounted on the lower side of the shear support plate. The station corresponding to the conveying module and the detection mechanism is the detection station, and the station corresponding to the conveying module and the shearing mechanism is the shearing station. The shearing station is located behind the detection station.

[0008] Furthermore, the conveying module includes a first linear module, which is used to convey the workpiece to be tested.

[0009] Furthermore, the lifting module includes a second linear module, which is used to drive the translation module to move in the vertical direction.

[0010] Furthermore, the translation module includes a third linear module, which is used to drive the probe bracket to move in the horizontal direction.

[0011] Furthermore, the conveying module is provided with a slide table, and the slide table is provided with a clamping assembly. The slide table includes a zero-point base and a zero-point chuck. The zero-point base is slidably engaged with the conveying module. The zero-point chuck is disposed at the upper end of the zero-point base. The clamping assembly includes a fixed clamp seat and a movable clamp seat. The movable clamp seat is slidably engaged with the fixed clamp seat. The bottom of the fixed clamp seat is provided with a zero-point pull stud, which is used to engage with the zero-point chuck. An installation cavity is provided between the fixed clamp seat and the movable clamp seat. The installation cavity is provided with a self-locking mechanism and an unlocking mechanism. The self-locking mechanism is used to keep the fixed clamp seat and the movable clamp seat in a clamped state. The unlocking mechanism is used to keep the fixed clamp seat and the movable clamp seat in an open state.

[0012] Furthermore, the self-locking mechanism includes a mounting block and a self-locking spring. The mounting block is connected to the fixed clamp seat, and one end of the self-locking spring is connected to the mounting block and the other end is connected to the movable clamp seat. The unlocking mechanism includes an unlocking cylinder and an air inlet seat. The air inlet seat is located at the upper end of the zero-point base, and the unlocking cylinder is located in the mounting cavity. The fixed clamp seat has a gas channel that connects the air inlet seat and the unlocking cylinder.

[0013] Furthermore, the upper end of the zero-point base is provided with a first conductive contact, and the lower end of the fixed clamp seat is provided with a second conductive contact at a position corresponding to the first conductive contact. The first conductive contact and the second conductive contact abut against each other. The unlocking cylinder is provided with a sensor, and the second conductive contact is connected to the sensor through a wire. The fixed clamp seat is provided with a first guide block, and the movable clamp seat is provided with a second guide block. The first guide block and the second guide block slide in cooperation. The top of the movable clamp seat is provided with a pull pin hole.

[0014] Furthermore, the fixed clamp seat includes a first base portion and a first clamping portion, the first clamping portion being disposed on one side of the first base portion, and the movable clamp seat includes a second base portion and a second clamping portion, the second clamping portion being disposed on one side of the second base portion, the first clamping portion and the second clamping portion forming a clamping area; the first clamping portion is provided with a first notch, and the second clamping portion is provided with a second notch, the first notch and the second notch corresponding to each other.

[0015] The beneficial effects of this utility model are as follows:

[0016] The strip spring welding quality inspection device provided by this utility model has a simple structure and is easy to use. The inspection mechanism can detect the spring height and position of the strip spring, and judge the welding quality of the strip spring from multiple dimensions, thus ensuring the reliability of the inspection. The shearing mechanism can cut off unqualified springs, which facilitates the rapid identification of qualified and unqualified products at the subsequent material unloading station, and facilitates accurate classification and placement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the strip spring welding quality detection device provided in this embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the combination of the detection mechanism and the shearing mechanism;

[0020] Figure 3 This is a schematic diagram of the combination of the slide and the clamping assembly;

[0021] Figure 4 A structural schematic diagram of the clamping component from one perspective;

[0022] Figure 5 This is a structural schematic diagram of the clamping component from another perspective.

[0023] In the diagram: 1-Frame; 11-Conveying module; 2-Slide table; 21-Zero point base; 22-Zero point chuck; 23-First conductive contact; 24-Second conductive contact; 3-Clamping assembly; 31-Fixed clamp seat; 311-First base part; 312-First clamping part; 313-First guide block; 314-First notch; 315-Zero point pull stud; 32-Modible clamp seat; 321-Second base part; 322-Second clamping part; 323-Second guide block; 324-Second notch; 325-Pull pin hole; 33-Mounting block; 34-Self-locking spring; 35-Unlocking cylinder; 36-Air inlet seat; 4-Detection mechanism; 41-Mounting bracket; 42-Lifting module; 43-Translation module; 44-Probe bracket; 45-Detection probe; 46-First slider; 47-Second slider; 5-Shearing mechanism; 51-Shearing cylinder; 52-Scissors support plate; 53-Pneumatic shears. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0028] refer to Figure 1 As shown, this utility model embodiment provides a strip spring welding quality inspection device, including a frame 1, a conveying module 11 and an inspection mechanism 4.

[0029] The rack 1 serves to support other components. The rack 1 can be a frame structure or a desktop structure.

[0030] The conveying module 11 is mounted on the frame 1. The conveying module 11 includes a first linear module, which is used to convey the workpiece to be tested. The first linear module can be a synchronous belt type conveying module or a ball screw type conveying module. In this embodiment, a ball screw type conveying module is used, which has stable transmission and high conveying accuracy.

[0031] refer to Figure 2As shown, the detection mechanism 4 includes a mounting frame 41, a lifting module 42, a translation module 43, a probe bracket 44, and detection probes 45. The mounting frame 41 is mounted on the frame 1 and located on one side of the conveying module 11. The lifting module 42 includes a second linear module, which is mounted on the mounting frame 41 and is vertically positioned. The translation module 43 includes a third linear module, which is supported on the second linear module by a first slider 46 connected to a sliding component in the second linear module. The probe bracket 44 is supported on the third linear module by a second slider 47 connected to a sliding component in the third linear module. In this embodiment, the probe bracket 44 is a U-shaped bracket, with its horizontal side connected to the second slider 47 and its two vertical sides facing downwards. There are two detection probes 45, each positioned on the inner lower end of one of the two vertical sides of the U-shaped bracket. In this way, the second linear module can drive the first slider 46 to move up and down in the vertical direction. When the first slider 46 moves, it can drive the third linear module to move synchronously. The third linear module drives the probe bracket 44 and the detection probe 45 to move in the vertical direction, thereby adjusting the height of the detection probe 45. Then, the third linear module can drive the probes to move in the horizontal direction, thereby adjusting the horizontal position of the detection probe 45. Through the coordinated action of the second and third linear modules, the detection probe 45 can be adjusted to the position of the workpiece to be detected.

[0032] The mounting frame 41 is also equipped with a shearing mechanism 5, which includes a shearing cylinder 51, a shear support plate 52, and a pneumatic shear 53. The shearing cylinder 51 is mounted on the mounting frame 41, with its piston rod parallel to the ground and perpendicular to the conveying module 11. The shear support plate 52 is mounted on the piston rod of the shearing cylinder 51, and the pneumatic shear 53 is mounted below the shear support plate 52. The station corresponding to the conveying module 11 and the detection mechanism 4 is the detection station, and the station corresponding to the conveying module 11 and the shearing mechanism 5 is the shearing station. The shearing station is located behind the detection station. When the detection station detects that the welded workpiece is unqualified, the conveying module 11 conveys the workpiece to the shearing station. The piston rod of the shearing cylinder 51 extends, causing the shear support plate 52 and the pneumatic shear 53 to approach the workpiece. Then, the pneumatic shear 53 cuts the unqualified workpiece, which facilitates the subsequent unloading station to quickly identify whether the workpiece is qualified. Then, qualified and unqualified workpieces are placed separately.

[0033] The conveying module 11 is equipped with a slide table 2, and the slide table 2 is equipped with a clamping assembly 3.

[0034] refer to Figure 3As shown, the slide table 2 includes a zero-point base 21 and a zero-point chuck 22. The zero-point base 21 is slidably engaged with the conveying module 11 and connected to the nut of the lead screw mechanism in the material conveying module 11. The conveying module 11 drives the zero-point base 21 to move along its length. Two zero-point chucks 22 are located at the upper end of the zero-point base 21, symmetrically arranged on the upper end of the zero-point base 21. Each zero-point chuck 22 has a pull pin hole 325 in the middle. The zero-point chuck 22 can utilize existing technology or be designed according to requirements.

[0035] refer to Figure 4 and 5 As shown, the clamping assembly 3 includes a fixed clamp base 31 and a movable clamp base 32.

[0036] The fixed clamp base 31 includes a first base portion 311 and a first clamping portion 312. The first clamping portion 312 is disposed on one side of the first base portion 311. The movable clamp base 32 includes a second base portion 321 and a second clamping portion 322. The second clamping portion 322 is disposed on one side of the second base portion 321. The second base portion 321 is slidably engaged with the first base portion 311. The first clamping portion 312 and the second clamping portion 322 form a clamping area. In this embodiment, the fixed clamp base 31 is provided with two first guide blocks 313, which are distributed at the upper end of the fixed clamp base 31 near both ends. The movable clamp base 32 is provided with two second guide blocks 323, which are fixed at the lower end of the movable clamp base 32 near both ends. The first guide blocks 313 and the second guide blocks 323 are snapped together and slidably engaged at the snap-fit ​​point. This not only connects the fixed clamp base 31 and the movable clamp base 32 together, making them difficult to separate, but also ensures that the movable clamp base 32 can slide relative to the fixed clamp base 31 without shifting. Alternatively, a groove can be provided on the first base portion 311, and a sliding portion can be provided on the second base portion 321, with the sliding portion slidably engaging with the groove.

[0037] The first clamping part 312 has a first notch 314, and the second clamping part 322 has a second notch 324, with the first notch 314 and the second notch 324 corresponding to each other. There are multiple first notches 314 distributed along the length of the first clamping part 312, and multiple second notches 324 distributed along the length of the second clamping part 322, with each first notch 314 and second notch 324 corresponding to the other. The first notch 314 and the second notch 324 are provided to facilitate the clamping and welding of the spring.

[0038] The bottom of the fixed clamp base 31 is provided with a zero-point rivet 315, which is used to snap and connect with the zero-point chuck 22. There are two zero-point rivets 315, and they correspond one-to-one with the zero-point chuck 22. The zero-point rivets 315 and the zero-point chuck 22 can be standard parts, which are stable to fit together and easy to snap together or separate.

[0039] The upper side of the first base portion 311 and / or the lower side of the second base portion 321 are provided with grooves to form an installation cavity, and a self-locking mechanism and an unlocking mechanism are provided in the installation cavity.

[0040] The self-locking mechanism includes a mounting block 33 and a self-locking spring 34. The mounting block 33 is connected to the fixed clamp seat 31. One end of the self-locking spring 34 is connected to the mounting block 33, and the other end is connected to the movable clamp seat 32. The axial direction of the self-locking spring 34 is consistent with the sliding direction of the movable clamp seat 32 relative to the fixed clamp seat 31. After the self-locking spring 34 is installed, it is in a compressed state. Under the elastic force of the self-locking spring 34, the first clamping part 312 and the second clamping part 322 can be clamped.

[0041] The unlocking mechanism includes an unlocking cylinder 35 and an air inlet seat 36. The air inlet seat 36 is located at the upper end of the zero-point base 21. The unlocking cylinder 35 is located inside the mounting cavity, and its cylinder body is fixed to the fixed clamp seat 31. The piston rod of the unlocking cylinder 35 is connected to the movable clamp seat 32. The fixed clamp seat 31 has a gas passage that connects the air inlet seat 36 and the unlocking cylinder 35. The air inlet seat 36 is connected to an air generator via an air pipe. Thus, when the zero-point rivet 315 and the zero-point chuck 22 are engaged, the air inlet seat 36 and the unlocking cylinder 35 are connected through the gas channel. Controlling the piston rod of the unlocking cylinder 35 to retract will cause the movable clamping seat 32 to slide, so that the first clamping part 312 and the second clamping part 322 are in the open state. At this time, the workpiece can be placed into the clamping area or removed from the clamping area. Controlling the piston rod of the unlocking cylinder 35 to extend will cause the first clamping part 312 and the second clamping part 322 to be in the clamping state. The first clamping part 312 and the second clamping part 322 can clamp the workpiece. At this time, if the zero-point rivet 315 and the zero-point chuck 22 are separated, that is, the clamping assembly 3 is separated from the slide table 2, the first clamping part 312 and the second clamping part 322 can still maintain the workpiece in the clamping state under the action of the self-locking mechanism.

[0042] The top of the movable clamp base 32 is also provided with a rivet hole 325. The number of rivet holes 325 is one, two or more. In this embodiment, the number of rivet holes 325 is two. The rivet holes 325 are provided to facilitate other mechanisms to grasp them, thereby separating the clamping component 3 from the slide table 2 and transferring the clamping component 3.

[0043] The upper end of the zero-point base 21 is also provided with a first conductive contact 23, and a conductive wire is connected to the first conductive contact 23 for connection to a power source. The lower end of the fixing clamp base 31 is provided with a second conductive contact 24 at a position corresponding to the first conductive contact 23. The first conductive contact 23 and the second conductive contact 24 abut against each other. The unlocking cylinder 35 is provided with a sensor, and the second conductive contact 24 is connected to the sensor through a wire. The sensor is used to detect the position status of the unlocking cylinder 35.

[0044] The working principle of the strip spring welding quality inspection device provided in this embodiment of the invention is as follows:

[0045] After the strip spring is welded, it is conveyed to the inspection station via the conveyor module 11. Then, the translation module 43 drives the probe bracket 44 to move above the workpiece to be tested. The lifting module 42 then drives the probe bracket 44 to descend, so that the inspection probe 45 reaches the set inspection height. The translation module 43 drives the probe bracket 44 to move horizontally again. At the same position, one inspection probe 45 first contacts one side of the strip spring to collect information, and then another inspection probe 45 contacts the other side of the strip spring to collect information. Information is collected from multiple positions of the strip spring in sequence. Finally, the controller analyzes the collected information to determine whether the strip spring is qualified. For unqualified workpieces, they are conveyed to the shearing station and destroyed by the pneumatic shear 53. Finally, they are conveyed to the unloading station, where qualified and unqualified workpieces are placed in the corresponding positions.

[0046] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A strip spring welding quality inspection device, characterized in that: The device includes a frame, a conveying module, and a testing mechanism. The conveying module is mounted on the frame. The testing mechanism includes a mounting frame, a lifting module, a translation module, a probe bracket, and a testing probe. The mounting frame is mounted on the frame, the lifting module is mounted on the mounting frame, the translation module is supported on the lifting module by a first slider, and the translation module is horizontally positioned. The probe bracket is supported on the translation module by a second slider, and the testing probe is located at the lower end of the probe bracket.

2. The strip spring welding quality inspection device according to claim 1, characterized in that: The probe bracket is a U-shaped bracket, the horizontal side of the U-shaped bracket is connected to the second slider, the two vertical sides of the U-shaped bracket face downwards, and the number of detection probes is two, with the two detection probes respectively set on the inner side of the lower end of the two vertical sides of the U-shaped bracket.

3. The strip spring welding quality inspection device according to claim 1, characterized in that: The mounting frame is also equipped with a shearing mechanism, which includes a shearing cylinder, a shear support plate, and a pneumatic shear. The shearing cylinder is mounted on the mounting frame, the shear support plate is mounted on the piston rod of the shearing cylinder, and the pneumatic shear is mounted on the lower side of the shear support plate. The station corresponding to the conveying module and the detection mechanism is the detection station, and the station corresponding to the conveying module and the shearing mechanism is the shearing station. The shearing station is located behind the detection station.

4. The strip spring welding quality inspection device according to claim 1, characterized in that: The conveying module includes a first linear module, which is used to convey the workpiece to be tested.

5. The strip spring welding quality inspection device according to claim 1, characterized in that: The lifting module includes a second linear module, which is used to drive the translation module to move in the vertical direction.

6. The strip spring welding quality inspection device according to claim 1, characterized in that: The translation module includes a third linear module, which is used to drive the probe bracket to move in the horizontal direction.

7. The strip spring welding quality inspection device according to claim 1, characterized in that: The conveying module is equipped with a slide table, and a clamping assembly is provided on the slide table. The slide table includes a zero-point base and a zero-point chuck. The zero-point base is slidably engaged with the conveying module, and the zero-point chuck is disposed at the upper end of the zero-point base. The clamping assembly includes a fixed clamp seat and a movable clamp seat. The movable clamp seat is slidably engaged with the fixed clamp seat. A zero-point pull stud is provided at the bottom of the fixed clamp seat for engaging with the zero-point chuck. An installation cavity is provided between the fixed clamp seat and the movable clamp seat. A self-locking mechanism and an unlocking mechanism are provided in the installation cavity. The self-locking mechanism is used to keep the fixed clamp seat and the movable clamp seat in a clamped state, and the unlocking mechanism is used to keep the fixed clamp seat and the movable clamp seat in an open state.

8. The strip spring welding quality inspection device according to claim 7, characterized in that: The self-locking mechanism includes a mounting block and a self-locking spring. The mounting block is connected to the fixed clamp seat, and one end of the self-locking spring is connected to the mounting block and the other end is connected to the movable clamp seat. The unlocking mechanism includes an unlocking cylinder and an air inlet seat. The air inlet seat is located at the upper end of the zero-point base, and the unlocking cylinder is located in the mounting cavity. The fixed clamp seat has a gas channel that connects the air inlet seat and the unlocking cylinder.

9. The strip spring welding quality inspection device according to claim 8, characterized in that: The upper end of the zero-point base is provided with a first conductive contact, and the lower end of the fixed clamp seat is provided with a second conductive contact at a position corresponding to the first conductive contact. The first conductive contact and the second conductive contact abut against each other. The unlocking cylinder is provided with a sensor, and the second conductive contact is connected to the sensor through a wire. The fixed clamp seat is provided with a first guide block, and the movable clamp seat is provided with a second guide block. The first guide block and the second guide block slide in cooperation. The top of the movable clamp seat is provided with a pull pin hole.

10. The strip spring welding quality inspection device according to claim 7, characterized in that: The fixed clamp seat includes a first base portion and a first clamping portion, the first clamping portion being disposed on one side of the first base portion. The movable clamp seat includes a second base portion and a second clamping portion, the second clamping portion being disposed on one side of the second base portion. The first clamping portion and the second clamping portion form a clamping area. The first clamping portion is provided with a first notch, and the second clamping portion is provided with a second notch, the first notch and the second notch corresponding to each other.

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