Tolerance detection device based on current loop
By using a tolerance testing device based on a current loop, combined with a robotic arm and current reflux testing, the problems of complex operation and high cost of existing devices are solved, achieving simplified structure and high-efficiency testing at low cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI AIR INSPECTION & TESTING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-12
AI Technical Summary
Existing tolerance testing devices are cumbersome to operate and expensive, making them difficult for small and medium-sized enterprises to promote and apply. Furthermore, existing simplified or automated retrofit solutions suffer from reduced measurement accuracy or compatibility issues.
A tolerance testing device based on a current loop is designed. It adopts a base and testing components, combined with a robot and current reflux testing method, which simplifies the equipment structure and tests the tolerance of the spring through current reflux. The equipment is simple to operate and has low cost.
It achieves simple equipment structure and convenient operation, reduces training costs and equipment prices, improves testing efficiency, and allows tolerance testing to be performed without extensive training.
Smart Images
Figure CN224230915U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tolerance detection technology, and specifically relates to a tolerance detection device based on a current loop. Background Technology
[0002] Existing tolerance testing devices generally suffer from drawbacks such as cumbersome operation and high cost when inspecting spring clips on products, which seriously affects the promotion and application of these devices by small and medium-sized enterprises and the efficiency of testing. The main problem lies in the complex structure of the equipment and the redundancy of functional modules, which leads to cumbersome operation procedures. It requires professional technicians for clamping, calibration and data processing, and ordinary operators find it difficult to learn quickly.
[0003] To alleviate these problems, conventional solutions include simplifying equipment structure or replacing some manual operations with partial automation to improve efficiency. However, structural simplification may lead to decreased measurement accuracy and affect inspection reliability; while partial automation may cause compatibility issues due to low system integration, increasing the difficulty of later maintenance. Furthermore, companies often compensate for the high barrier to entry of equipment by strengthening operational training, but this involves long training cycles, high labor costs, and fails to fundamentally address the core contradiction of high equipment price and complex operation. Therefore, we aim to design a tolerance inspection device with a novel structure to solve this problem. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a tolerance detection device based on current loop, so as to solve the problems mentioned in the background technology.
[0005] This utility model is achieved through the following technical solution: a tolerance detection device based on a current loop, comprising: a base, wherein a detection component for tolerance detection of spring sheets on a product is slidably installed on the upper side of the base, the base includes a bottom plate, and a long cylinder is installed on the lower side of the bottom plate;
[0006] The detection component includes a mounting frame. An upper detection module is mounted on the upper front side of the mounting frame, and a lower detection module for detecting spring clips is mounted on the lower front side of the mounting frame. The lower end of the mounting frame is slidably connected to the base plate via a guide rail, and the rear end of the lower end of the mounting frame is fixedly connected to the rear end of a long cylinder. In actual use, a robotic arm can be installed on the front side of the detection component to grasp the product to be detected, so that the upper and lower spring clips on the product correspond to the upper and lower detection modules respectively, enabling fast and safe tolerance detection. The robotic arm can be set and programmed according to different product sizes when grasping the product and placing it between the upper and lower detection modules. The robotic arm can be a product already on the market. Its product grasping, inspection, and product return are all programmed according to actual usage requirements. Its specific working principle and structure all adopt existing technology and will not be elaborated here.
[0007] In a preferred embodiment, the upper detection module and the lower detection module have the same specifications and are arranged in an axisymmetric structure in the vertical direction on the front side of the mounting frame.
[0008] In a preferred embodiment, the upper detection module includes a cylinder block, which is fixedly connected to the upper side of the front surface of the mounting bracket. A slide block is slidably connected to the front side of the cylinder block, and the slide block has an L-shaped structure with its lower end fixedly connected to the lower end of the piston rod of the cylinder block.
[0009] In a preferred embodiment, the upper detection module further includes a mounting plate, which has an inverted L-shaped structure, with its upper end fixedly connected to the lower end of the slide block, and a plurality of equally spaced slide rails provided on the front surface of the mounting plate.
[0010] In a preferred embodiment, an L-shaped carriage is slidably mounted on the front side of each slide rail, and a buffer guide post is fixed at the lower end of each carriage. The buffer guide post includes a guide rod and a buffer spring. The outer wall of the guide rod is fitted with a buffer spring, and the upper end of the buffer spring is movably abutting against the lower surface of the top of the mounting plate. The upper end of the guide rod extends upward through the front side of the upper end of the mounting plate and is slidably connected to it.
[0011] In a preferred embodiment, the upper surface of the carriage has multiple through holes extending downwards to form a plurality of through holes for mounting terminals. The upper side of the terminals is fixedly connected to an external wire. In actual use, two symmetrically arranged terminals are installed at the lower end of each carriage, and a detection block is fixed on the lower side of each terminal. A partition is provided between the two detection blocks, and the partition is integrally formed with the carriage.
[0012] In a preferred embodiment, a detection block is fixed to the lower end of the terminal block by a nut. The detection block is fixed to the lower end of the carriage by the terminal block and electrically connected to an external wire by the terminal block.
[0013] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By setting the base and detection components, the overall equipment structure is simple and easy to operate, which solves the core contradiction problems of long training cycle, high labor cost and difficulty in fundamentally solving the problems of high equipment price and complicated operation, and helps to quickly and conveniently detect the springs on the product.
[0014] 2. The upper and lower detection modules are set up based on the principle of current return. If the wire connected to a certain detection block does not return, then there is a tolerance between that spring and the other springs. The detection method based on circuit return is very simple, which makes the equipment operation relatively simple. It can be operated without a lot of training, and the equipment is cheaper than large and complex equipment. Attached Figure Description
[0015] 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.
[0016] Figure 1 This is a schematic diagram of the overall structure of a tolerance detection device based on a current loop according to this utility model.
[0017] Figure 2 This is a schematic diagram of the connection structure between the base and the detection component of a tolerance detection device based on a current loop according to this utility model.
[0018] Figure 3 This is a schematic diagram of the upper and lower detection modules of a tolerance detection device based on a current loop according to this utility model.
[0019] Figure 4 This is a schematic diagram of the specific structure of the upper detection module of a tolerance detection device based on a current loop according to this utility model.
[0020] In the diagram, 100 is the base, 110 is the long cylinder, and 120 is the base plate.
[0021] 200-Detection component, 210-Mounting bracket, 220-Upper detection module, 221-Cylinder block, 222-Slide, 223-Mounting plate, 224-Slide, 225-Buffer guide post, 226-Detection block, 227-Terminal, 230-Lower detection module. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] As the first embodiment of this utility model:
[0024] Please see Figures 1 to 4 A tolerance detection device based on a current loop includes: a base 100, a detection component 200 for detecting the tolerance of a spring sheet on a product is slidably mounted on the upper side of the base 100, the base 100 includes a base plate 120, and a long cylinder 110 is mounted on the lower side of the base plate 120.
[0025] The inspection component 200 includes a mounting frame 210. An upper inspection module 220 is mounted on the upper front side of the mounting frame 210, and a lower inspection module 230 for inspecting spring pieces is mounted on the lower front side of the mounting frame 210. The lower end of the mounting frame 210 is slidably connected to the base plate 120 via a guide rail, and the rear end of the lower end of the mounting frame 210 is fixedly connected to the rear end of the long cylinder 110. In actual use, a robotic arm can be set on the front side of the inspection component 200 to grasp the product to be inspected, so that the upper and lower spring pieces on the product correspond to the upper inspection module 220 and the lower inspection module 230, respectively, enabling fast and safe tolerance inspection. The position where the robotic arm grasps the product and places it between the upper inspection module 220 and the lower inspection module 230 can be set and programmed according to different product sizes. The robotic arm can be a product already on the market. Its product grasping, inspection, and product return are all programmed according to actual usage requirements. Its specific working principle and structure all adopt existing technology and will not be elaborated here.
[0026] Specifically, by setting up a base 100 and a detection component 200, in actual use, after the external robotic arm grasps the product and moves it into the position to be detected (this position is a predetermined program setting position, which can be set according to actual usage requirements), the long cylinder 110 on the base 100 is activated, which drives the mounting bracket 210 on the base plate 120 to move forward, thereby placing the upper detection module 220 and the lower detection module 230 on the detection component 200 on the directly above and directly below the product, respectively. Then, by activating the upper detection module 220 and the lower detection module 230, the tolerance of the product can be detected. The overall equipment structure is simple and easy to operate, solving the core contradictions of long training cycles, high labor costs, and difficulty in fundamentally solving the problems of high equipment prices and complex operation. It helps to quickly and conveniently detect the springs on the product.
[0027] As a second embodiment of this utility model:
[0028] Please see Figures 1 to 4 The upper detection module 220 and the lower detection module 230 have the same specifications and are arranged in an axisymmetric structure in the vertical direction on the front side of the mounting bracket 210.
[0029] The upper detection module 220 includes a cylinder block 221, which is fixedly connected to the upper side of the front surface of the mounting bracket 210. A slide block 222 is slidably connected to the front side of the cylinder block 221. The slide block 222 has an L-shaped structure and its lower end is fixedly connected to the lower end of the piston rod of the cylinder block 221.
[0030] The upper detection module 220 also includes a mounting plate 223, which has an inverted L-shaped structure. Its upper end is fixedly connected to the lower end of the slide block 222, and the front surface of the mounting plate 223 is provided with multiple equally spaced slide rails.
[0031] Each slide rail has an L-shaped carriage 224 slidably mounted on its front side. Each carriage 224 has a buffer guide post 225 fixed at its lower end. The buffer guide post 225 includes a guide rod and a buffer spring. The outer wall of the guide rod is fitted with a buffer spring. The upper end of the buffer spring is in movable contact with the lower surface of the top of the mounting plate 223. The upper end of the guide rod passes through the upper front side of the mounting plate 223 and is slidably connected to it.
[0032] Multiple through holes are formed on the front side of the upper surface of the slide 224 for mounting the terminal blocks 227. The upper side of the terminal blocks 227 is fixedly connected to the external wires. In actual use, two symmetrically arranged terminal blocks 227 are installed at the lower end of each slide 224, and a detection block 226 is fixed on the lower side of each terminal block 227. A partition is provided between the two detection blocks 226, and the partition is integrally set with the slide 224.
[0033] A detection block 226 is fixed to the lower end of the terminal block 227 by a nut. The detection block 226 is fixed to the lower end of the slide 224 by the terminal block 227 and is electrically connected to the external wires by the terminal block 227.
[0034] Based on the first embodiment described above, in actual use, after the product is placed between the upper detection module 220 and the lower detection module 230, the cylinder block 221 is activated simultaneously. The cylinder block 221 pushes the slide block 222 on the upper detection module 220 and the lower detection module 230 to move towards each other, thereby causing the mounting plate 223 and the slide 224 on them to move towards each other. This causes the detection blocks 226 on the upper detection module 220 and the lower detection module 230 to abut against the upper and lower springs on the product, respectively. Then, power is supplied to the external wires. Since the detection block 226 is fixed to the lower end of the slide 224 through the terminal 227 and electrically connected to the external wires through the terminal 227, under the principle of current return, if the wire connected to a certain detection block 226 does not return, then there is a tolerance between that spring and the other springs. The detection method based on circuit return is very simple, which makes the equipment operation relatively simple. It can be operated without a lot of training, and the equipment is less expensive than large and complex equipment.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tolerance detection device based on a current loop, comprising: The base (100) is characterized in that a detection component (200) for tolerance detection of the spring sheet on the product is slidably installed on the upper side of the base (100), and the base (100) includes a base plate (120), and a long cylinder (110) is installed on the lower side of the base plate (120). The detection component (200) includes a mounting bracket (210), an upper detection module (220) is mounted on the upper front side of the mounting bracket (210), a lower detection module (230) for detecting the spring is mounted on the lower front side of the mounting bracket (210), the lower end of the mounting bracket (210) is slidably connected to the base plate (120) via a guide rail, and the rear side of the lower end of the mounting bracket (210) is fixedly connected to the rear end of the long cylinder (110).
2. The tolerance detection device based on a current loop as described in claim 1, characterized in that: The upper detection module (220) and the lower detection module (230) have the same specifications and are arranged in an axisymmetric structure in the vertical direction on the front side of the mounting bracket (210).
3. The tolerance detection device based on a current loop as described in claim 1, characterized in that: The upper detection module (220) includes a cylinder block (221), which is fixedly connected to the upper side of the front surface of the mounting bracket (210). A slide block (222) is slidably connected to the front side of the cylinder block (221). The slide block (222) has an L-shaped structure and its lower end is fixedly connected to the lower end of the piston rod of the cylinder block (221).
4. The tolerance detection device based on a current loop as described in claim 3, characterized in that: The upper detection module (220) also includes a mounting plate (223), which has an inverted L-shaped structure. Its upper end is fixedly connected to the lower end of the slide (222), and the front surface of the mounting plate (223) is provided with multiple equally spaced slide rails.
5. The tolerance detection device based on a current loop as described in claim 4, characterized in that: Each of the slide rails has an L-shaped carriage (224) slidably mounted on its front side. Each of the slide rails (224) has a buffer guide post (225) fixed at its lower end. The buffer guide post (225) includes a guide rod and a buffer spring. The outer wall of the guide rod is fitted with a buffer spring. The upper end of the buffer spring is in movable contact with the lower surface of the top of the mounting plate (223). The upper end of the guide rod passes through the upper front side of the mounting plate (223) and is slidably connected to it.
6. The tolerance detection device based on a current loop as described in claim 5, characterized in that: The upper surface of the slide (224) has multiple through holes extending downwards to form a plurality of holes for mounting terminals (227), and the upper side of the terminals (227) is fixedly connected to external wires.
7. The tolerance detection device based on a current loop as described in claim 6, characterized in that: The lower end of the terminal block (227) is fixed with a nut to a detection block (226). The detection block (226) is fixed to the lower end of the slide (224) by the terminal block (227) and electrically connected to an external wire by the terminal block (227).