Automatic product centering and positioning device
The automatic product centering and positioning device, which combines a cylinder-driven slider and a suction cup, solves the shortcomings of existing fixtures in terms of positioning accuracy and versatility. It achieves high-precision and low-cost positioning by laser scanning, reducing production costs and maintenance difficulties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI MINNENG AUTOMOTIVE PARTS CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing fixtures suffer from insufficient precision, complex structure, high cost, difficult maintenance, and poor versatility in product positioning and clamping, leading to errors when laser barcode scanners read information, increasing production costs and reducing production efficiency.
Design an automatic product centering and positioning device, which uses a combination of cylinder-driven slider and suction cup to achieve automatic product centering and clamping. The movement of the slider and suction cup is controlled by the cylinder to ensure accurate positioning of the product during laser scanning.
It improves the accuracy of laser scanning, reduces product scrap rate, simplifies structure and maintenance process, reduces costs, and enhances the versatility of fixtures to adapt to products of different specifications and shapes.
Smart Images

Figure CN224144592U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of battery box processing equipment, specifically relating to an automatic product centering and positioning device. Background Technology
[0002] In modern automated production lines, laser scanning technology is widely used in product identification, traceability, and quality control. However, due to product positioning deviations and poor positioning accuracy, laser scanning equipment often makes mistakes when reading information on products, leading to product scrap. This not only increases production costs but also reduces production efficiency and product quality. Currently, there are some fixtures on the market for product positioning and clamping, but most of them have the following shortcomings: complex structure and high cost: To achieve high-precision positioning and clamping, existing fixtures often use complex mechanical structures and control systems, resulting in high costs; difficult maintenance: The complex structure makes fixture maintenance difficult, and once a failure occurs, the repair cycle is long and costly; poor versatility: Different specifications and shapes of products require different fixtures, resulting in poor fixture versatility and increased production costs; insufficient accuracy: Existing fixtures are insufficient in terms of positioning accuracy and clamping stability, making it difficult to meet the high-precision requirements of laser scanning. Therefore, it is necessary to design a device that can automatically adjust product positioning and ensure consistent clamping positions, which is of great significance for improving the accuracy of laser scanning and reducing product scrap rates. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an automatic product centering and positioning device that can automatically center the product, ensure the consistency of the product clamping position, and improve the accuracy of laser scanning, in light of the current state of the technology.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an automatic product centering and positioning device, characterized in that it includes a base plate and four sliders, four guide rails, two placement plates, suction cups, four return springs, and a cylinder drive assembly disposed on the base plate. Two sliders are fixed to the bottom of each placement plate. The sliders are sleeved on the guide rails and can slide along the guide rails. The four composite springs are located on the inner side of the placement plates. The suction cups are located in the middle of the two placement plates. A linkage rod is also connected between the two placement plates and the cylinder drive assembly. When the cylinder drive assembly is working, it uses the linkage rod to push the sliders to move towards the center and make the four suction cups contact and fix the product for laser scanning at the same time. After the laser scanning is completed, the cylinder drive assembly retracts, and the sliders and placement plates return to the initial position together under the action of the return springs.
[0005] In the aforementioned automatic product centering and positioning device, the cylinder drive assembly includes a cylinder and a drive fork. The drive fork is connected to the cylinder and cooperates with a linkage rod. A guide wheel is provided at the connection point between the linkage rod and the drive fork.
[0006] Compared with the prior art, the advantages of this utility model are:
[0007] 1. Improve positioning accuracy: The automatic centering function ensures the consistency of product clamping position, thereby improving the accuracy of laser scanning;
[0008] 2. Reduced product scrap rate: Due to accurate product positioning, laser scanning equipment can correctly read the information on the product, reducing the product scrap rate; simple structure and low cost.
[0009] 3. This invention is composed of simple components such as cylinders, sliders, springs and suction cups, which are low in cost and easy to manufacture;
[0010] 4. Easy to maintain: The simple structure makes the maintenance of the fixture simple and convenient, and it can be quickly repaired in case of failure;
[0011] 5. High versatility: By adjusting the position of the cylinder and slider, this fixture can adapt to products of different specifications and shapes; Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the automatic centering and positioning device of this product. Detailed Implementation
[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0014] In the diagram, the base plate is 100; the slider is 200; the guide rail is 300; the placement plate is 400; the suction cup is 500; the return spring is 600; the linkage rod is 700; the driving fork is 800; the cylinder is 900; and the guide wheel is 1000.
[0015] like Figure 1As shown, the automatic centering and positioning device of this product includes a base plate 100 and four sliders 200, four guide rails 300, two placement plates 400, a suction cup 500, four return springs 600, and a cylinder drive assembly, all mounted on the base plate 100. Two sliders 200 are fixed to the bottom of each placement plate 400. The sliders 200 are fitted onto the guide rails 300 and can slide along the guide rails 300. The four composite springs are located on the inner sides of the placement plates 400. The suction cup 500 is located between the two placement plates 400. In this patent, the suction cup 500 is used to fix the product, and the return springs 600 provide restoring force to ensure that the suction cup 500 can quickly return to its initial position when released. The movement of the sliders 200 is controlled by the extension and retraction of the cylinder 900, thereby achieving automatic centering and clamping of the product. The two placement plates 400 and the cylinder drive assembly... A linkage rod 700 is also connected between the cylinder drive components. When the cylinder drive components are working, the linkage rod 700 pushes the slider 200 to move towards the center and makes the four suction cups 500 contact and fix the product for laser scanning at the same time. After the laser scanning is completed, the cylinder drive components retract, and the slider 200 and the placement plate 400 return to the initial position together under the action of the return spring 600. In order to facilitate the movement, the cylinder drive components include a cylinder 900 and a drive fork 800. The drive fork 800 is connected to the cylinder 900 and cooperates with the linkage rod 700. A guide wheel 1000 is provided at the connection between the linkage rod 700 and the drive fork 800. The guide wheel 1000 can be used to make the drive fork 800 drive the linkage rod 700 to swing, thereby realizing the movement of the placement plate 400.
[0016] Initial working state: Cylinder 900 is in the retracted state, slider 200 and suction cup 500 are located on both sides of the slide rail, and the spring is in the compressed state; Product positioning: The product is placed on the placement plate 400, and the product position is initially adjusted by the robot or other equipment to make it approximately in the center of the placement plate 400; Automatic centering: Cylinder 900 extends, pushing slider 200 to move towards the center, so that the four suction cups 500 simultaneously contact and fix the product. Since there are four sliders 200 and suction cups 500, distributed around the placement plate 400, the automatic centering function of the product can be realized; Laser scanning: After the product is accurately fixed, the laser scanning device scans the product. Due to the accurate product positioning, the laser scanning device can correctly read the information on the product; Product release: After scanning is completed, cylinder 900 retracts, slider 200 returns to the initial position under the action of the return spring, and suction cup 500 also releases the product.
[0017] This patent mainly achieves the following functions:
[0018] 1. Automatic centering function: The combination of cylinder 900, slider 200 and suction cup 500 realizes the automatic centering function of the product, ensuring the consistency of the product clamping position;
[0019] 2. Simple structure: The fixture is composed of simple components such as cylinder 900, slider 200, return spring and suction cup 500, which reduces cost and maintenance difficulty;
[0020] 3. High versatility: By adjusting the positions of cylinder 900 and slider 200, the fixture can adapt to products of different specifications and shapes.
[0021] 4. High-precision positioning: It can adaptively adjust products of different sizes or positions to be scanned to the predetermined center position. This mechanism is composed of cylinder 900, slider 200 and return spring, which ensures the accuracy and stability of product positioning. Slider 200 and suction cup 500 combination: The combination of four sliders 200 and four suction cups 500 realizes uniform clamping and fixation of the product. This design can ensure that the product will not be displaced during scanning, improving the accuracy and success rate of scanning.
[0022] 5. Spring Return System: The fixture uses a return spring as its return system. When the cylinder 900 retracts, the return spring can quickly restore the slider 200 and the suction cup 500 to their initial positions, preparing them for the next operation. This design not only improves work efficiency but also ensures the stability and durability of the fixture.
[0023] 6. High-precision positioning: By precisely controlling the extension and retraction of cylinder 900, high-precision positioning of the product is achieved. This high-precision positioning capability meets the positioning accuracy requirements of laser barcode scanning equipment, ensuring the accuracy and reliability of barcode scanning, and can adapt to products of different specifications and shapes. This adjustable design increases the flexibility and versatility of the fixture, reducing production costs and maintenance difficulty.
[0024] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications to the described specific embodiments or adopt similar methods to replace them, but without departing from the scope defined by the spirit of this utility model.
Claims
1. An apparatus for automatically centering a product, comprising: The bottom plate and four sliders, four guide rails, two placement plates, suction cups, four return springs and a cylinder driving assembly are arranged on the bottom plate, two sliders are fixedly connected to the bottom of each placement plate, the sliders are sleeved on the guide rails and can slide along the guide rails, the four return springs are located at the inner side edges of the placement plates, the suction cups are located in the middle of the two placement plates, linkage rods are further connected between the two placement plates and the cylinder driving assembly, when the cylinder driving assembly works, the linkage rods push the sliders to move towards the center and make the four suction cups simultaneously contact and fix the product to perform laser code scanning, after the laser code scanning is completed, the cylinder driving assembly is retracted, and the sliders and the placement plates return to the initial positions under the action of the return springs.
2. An automatic centering and positioning device for products according to claim 1, characterized in that, The cylinder driving assembly comprises a cylinder and a driving fork, the driving fork is connected to the cylinder, the driving fork cooperates with the linkage rods, and a guide wheel is arranged at the cooperative connection position of the linkage rods and the driving fork.