Centering positioning mechanism
By using a fixed-base slide cylinder to drive the guide rail sliding block to move synchronously, combined with a zero-position pin and positioning components, the problem of asynchronous adjustment in existing centering mechanisms is solved, achieving efficient and precise centering positioning, thus improving production efficiency and product protection.
Patent Information
- Application Number
- CN202423132900.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The existing centering mechanism uses a single-sided movable type, which leads to asynchronous adjustment, complicated operation, low adjustment efficiency, and affects the quality and precision of the production process.
The fixed-base slide table is driven by a cylinder to move the sliding blocks on both sides of the guide rails synchronously through a connecting rod. Combined with a zero-position pin and positioning components, it ensures precise positioning. Bearings or cylindrical positioning blocks are used for linear contact rotational friction buffering to reduce product damage.
It enables rapid and accurate product positioning, improves production efficiency and positioning accuracy, is easy to operate, and reduces product damage during the centering process.
Smart Images

Figure CN223820364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical technology, specifically to a centering positioning mechanism. Background Technology
[0002] A centering mechanism in a mechanical device is used to center and clamp objects. Typically, centering mechanisms employ mechanical centering and clamping methods, with drive sources including pneumatic, hydraulic, and electrical components. In various production processes, the centering mechanism plays a crucial positioning role; its centering accuracy directly affects the quality and precision of the process.
[0003] The existing centering mechanism is a single-sided movable type. It involves checking the scales or dial indicators on both sides, fixing one side and adjusting the other side. This method has the problems of asynchronous adjustment on both sides, complicated operation, and low adjustment efficiency. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a centering positioning mechanism.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a centering positioning mechanism, comprising a fixed base plate, a fixed seat slide cylinder, two positioning components, two sets of guide rail sliding blocks, and two sets of zero-position pins. The fixed seat slide cylinder is installed at the center of the fixed base plate, with its two telescopic ends facing the two ends of the fixed base plate. The two sets of guide rail sliding blocks are respectively installed at the two ends of the fixed base plate. The two positioning components are respectively installed at one guide rail sliding block, and the two sets of zero-position pins are respectively installed at one positioning component. The two ends of the fixed base plate are symmetrically provided with zero-position points that cooperate with the zero-position pins. The two telescopic ends of the fixed seat slide cylinder are respectively provided with connecting rods, and the connecting rods are connected to the corresponding positioning components.
[0006] In some embodiments, the positioning component includes a base, an adapter block, and a positioning block. The base is connected to the sliding end of the guide rail slider, the adapter block is mounted on the base, and the positioning block is mounted on the moving end of the adapter block.
[0007] In some embodiments, the positioning block is a bearing or a cylinder.
[0008] In some embodiments, the guide rail sliding block includes a linear guide rail, a connecting block, and a slide table. The linear guide rail is mounted on a fixed base plate, and the slide table is slidably mounted on the linear guide rail. The mounting end of the positioning component is connected to the slide table through the connecting block.
[0009] In some embodiments, the fixed base slide cylinder includes a double-headed slide cylinder and two connecting seats. The cylinder body of the double-headed slide cylinder is fixedly installed with the center of the fixed base plate aligned. The two connecting seats are respectively installed on the telescopic heads of the double-headed slide cylinder, and each connecting seat is connected to a connecting rod.
[0010] In some embodiments, a reference seat is provided on the fixed base plate corresponding to the zero point, and the two reference seats are symmetrically arranged on the fixed base plate. The zero pin passes through the base and the slide and then cooperates with the reference seat.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the slide table cylinder drives the two guide rail sliding blocks to move together through the connecting rod, so that the two positioning blocks move toward the center at the same time to achieve rapid product positioning, high positioning accuracy, convenient operation, and improved production efficiency.
[0012] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. The embodiments of this application will provide a detailed description and understanding of the application. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present invention.
[0014] Figure 2 This is a top view of the present invention.
[0015] Figure 3 This is a side view of the present invention.
[0016] Figure 4 This is an exploded view of the present invention.
[0017] In the picture:
[0018] 100. Fix the base plate;
[0019] 200. Positioning component; 210. Base; 220. Adapter block; 230. Positioning block;
[0020] 300. Guide rail sliding block; 310. Linear guide rail; 320. Connecting block; 330. Slide table;
[0021] 400. Fixed base slide cylinder; 410. Double-headed slide cylinder; 420. Connecting seat; 430. Connecting rod;
[0022] 500, Zero-position pin; 510, Reference seat; 520, Zero-position pin shaft. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a centering positioning mechanism, including a fixed base plate, a fixed seat slide cylinder, two positioning components, two sets of guide rail sliding blocks, and two sets of zero-position pins. The fixed seat slide cylinder is installed at the center of the fixed base plate, with its two telescopic ends facing the two ends of the fixed base plate. The two sets of guide rail sliding blocks are respectively installed at the two ends of the fixed base plate. The two positioning components are installed at one guide rail sliding block, and the two sets of zero-position pins are installed at one positioning component. The two ends of the fixed base plate are symmetrically provided with zero-position points that cooperate with the zero-position pins. The two telescopic ends of the fixed seat slide cylinder are respectively provided with connecting rods, and the connecting rods are connected to the corresponding positioning components.
[0025] The positioning component includes a base, an adapter block, and a positioning block. The base is connected to the sliding end of the guide rail sliding block, the adapter block is mounted on the base, and the positioning block is mounted on the moving end of the adapter block.
[0026] The adapter block is a rotatable and adjustable swing arm. One end of the adapter block is connected to the base, and the other end of the adapter block is connected to the positioning block.
[0027] The positioning block is a bearing or a cylinder.
[0028] The adapter block can be designed to be adjusted at multiple angles according to the product's shape. The positioning block makes linear contact with the product's largest outer edge. The positioning block is generally positioned by bearings or cylinders and can rotate so that when loading glass products, the positioning block can be centered without damaging the product due to its maximum degree of freedom.
[0029] The guide rail sliding block includes a linear guide rail, a connecting block, and a slide table. The linear guide rail is mounted on a fixed base plate, and the slide table is slidably mounted on the linear guide rail. The mounting end of the positioning component is connected to the slide table through the connecting block.
[0030] The base is mounted on the mounting surface of the slide table to ensure the consistency of linear movement between the positioning component and the guide rail sliding block component. The adapter block is mounted on the side of the base to facilitate convenient and accurate measurement and ensure the stability of the centering positioning mechanism.
[0031] The fixed base slide cylinder includes a double-headed slide cylinder and two connecting seats. The cylinder body of the double-headed slide cylinder is fixedly installed with the center of the fixed base plate (to ensure the absolute center point of the centering positioning mechanism). The two connecting seats are respectively installed on the telescopic heads of the double-headed slide cylinder. Each connecting seat is connected to a connecting rod. The connecting rod drives two sets of guide rail sliding blocks to achieve linear synchronous movement.
[0032] The fixed base plate is provided with a reference seat corresponding to the zero point. The two reference seats are symmetrically arranged on the fixed base plate. The zero position pin can pass through the base and the slide table and cooperate with the reference seat. Through the cooperation between the zero position pin and the reference seat, the zero position setting realizes the absolute position, ensuring that if there is any deviation in the centering positioning process of the product, it can be adjusted through the zero position.
[0033] This technical solution utilizes a fixed-base slide cylinder as the drive mechanism. When loading a product, the slide cylinder, via a connecting rod, drives the guide rail sliding block to open and place the product onto the equipment. The slide cylinder's opening and closing speed can be adjusted and controlled according to air pressure. After the product is in place, the positioning component, along with the closed bearing positioning block of the slide cylinder, slowly moves the product towards the center through linear contact rotational friction. This reduces scratches and damage during the centering process, alleviates lateral forces on the centering positioning mechanism, and improves the stability of the centering positioning mechanism.
[0034] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A centering positioning mechanism, characterized in that: The device includes a fixed base plate, a fixed seat slide cylinder, two positioning components, two sets of guide rail sliding blocks, and two sets of zero-position pins. The fixed seat slide cylinder is installed at the center of the fixed base plate, with its two telescopic ends facing the two ends of the fixed base plate. The two sets of guide rail sliding blocks are installed one-to-one at the two ends of the fixed base plate. The two positioning components are installed at one guide rail sliding block, and the two sets of zero-position pins are installed at one positioning component. The two ends of the fixed base plate are symmetrically provided with zero-position points that cooperate with the zero-position pins. The two telescopic ends of the fixed seat slide cylinder are respectively provided with connecting rods, which are connected to the corresponding positioning components.
2. The centering positioning mechanism according to claim 1, characterized in that: The positioning component includes a base, an adapter block, and a positioning block. The base is connected to the sliding end of the guide rail sliding block, the adapter block is mounted on the base, and the positioning block is mounted on the moving end of the adapter block.
3. The centering positioning mechanism according to claim 2, characterized in that: The positioning block is a bearing or a cylinder.
4. The centering positioning mechanism according to claim 1, characterized in that: The guide rail sliding block includes a linear guide rail, a connecting block, and a slide table. The linear guide rail is mounted on a fixed base plate, and the slide table is slidably mounted on the linear guide rail. The mounting end of the positioning component is connected to the slide table through the connecting block.
5. The centering positioning mechanism according to claim 1, characterized in that: The fixed base slide cylinder includes a double-headed slide cylinder and two connecting seats. The cylinder body of the double-headed slide cylinder is fixedly installed with the center of the fixed base plate aligned. The two connecting seats are respectively installed on the telescopic heads of the double-headed slide cylinder, and each connecting seat is connected to a connecting rod.
6. The centering positioning mechanism according to claim 1, characterized in that: A reference seat is provided on the fixed base plate corresponding to the zero point. The two reference seats are symmetrically arranged on the fixed base plate. The zero position pin passes through the base and the slide table and cooperates with the reference seat.