Multi station vise refers to a station vise that integrates three or more independent or interlinked clamping positions on the same base. This multi-position vise can significantly enhance our processing efficiency during the manufacturing process. This article will elaborate on the advantages of the multi-position vise.
I. The core function of multi Station vices:
Essentially, multi station vices are similar to double-position vices, but the multi station vices offer a more optimal solution.
1.Mechanized production efficiency: This is the most fundamental function. By clamping multiple parts in one operation (commonly 3 stations, 4 stations, or even 6 stations), a single processing cycle can simultaneously produce several finished products. This fully exploits the high-speed cutting capabilities of the CNC machine tools, and the auxiliary time (clamping and alignment time) is distributed among multiple parts, almost negligible.
2.Maximizing the utilization rate of the machine tool worktable: Within the limited space of the machine tool worktable, installing a multi-station vise is much more space-efficient than installing multiple single station vices. The layout is also more compact and reasonable, leaving space for long-sized workpieces or other fixtures.
3. Ensure extremely high consistency of parts within the batch: All parts are processed under the same conditions (at the same time, in the same environment, with the same clamping force), completely eliminating the positioning errors caused by multiple separate clamping operations. This is particularly suitable for component groups that require precise fit or complete interchangeability.
4. Perfectly compatible with automated production: Multi station vices are an ideal choice for automated production lines and "dark factories". Robots or mechanical arms can pick up multiple blanks at once for loading, or take down all the finished products at once, perfectly matching the rhythm of the automated system to achieve unmanned and efficient production.
5. Reduce the overall unit cost: Although the initial investment for the fixtures is relatively high, due to the significant increase in production capacity, the costs such as machine depreciation, labor, and electricity expenses that are allocated to each part have decreased significantly. Overall, this has led to a substantial reduction in the unit cost, resulting in an extremely high return on investment (ROI).
II. Main Types and Characteristics of Multi Station Vise
| Type | Operating principle | Merit | Shortcoming | Applicable scene |
| Parallel multi station vise | Multiple clamping jaws are arranged in a straight line or on a plane side by side, and are usually driven synchronously by a central driving mechanism (such as a long connecting rod) for all the screws. | Synchronous clamping ensures that each part is subjected to uniform force; the operation is extremely fast, requiring only the manipulation of a handle or an air switch. | The consistency of the blank size is extremely critical. If the size deviation of the blank is large, it will result in uneven clamping force, and even damage the vise or the workpiece. | Mass production of parts with stable rough dimensions, such as standard components and electronic components. |
| Modular combined vise | It is composed of a long base and multiple "pliers modules" that can be independently moved, positioned and locked. Each module has its own screw and handle. | Extremely flexible. The number and spacing of workstations can be freely adjusted according to the size of the workpieces; it has strong adaptability to the tolerance of the blank size; it can hold workpieces of different sizes. | The operation is a bit slow and each module needs to be tightened separately; the overall rigidity might be slightly lower than that of the integrated type. | Small batch, multiple varieties, with large variations in workpiece dimensions; R&D prototyping; Flexible Manufacturing Cell (FMC). |
Modern high-end multi station vices often adopt the "central drive + floating compensation" design. That is, a power source is used for driving, but there are elastic or hydraulic mechanisms inside that can automatically compensate for minor variations in the size of the workpiece, combining the efficiency of a linked system with the adaptability of an independent system.
III. Typical Application Scenarios of Multi station vise
Mass production: This applies to areas that require extremely high production volumes, such as automotive components, aerospace parts, 3C electronic products (such as phone frames and cases), and hydraulic valve blocks.
Processing of small precision parts: such as watch parts, medical devices, connectors, etc. These parts are very small and the processing efficiency for a single part is extremely low. Multi-position vices can clamp dozens or even hundreds of parts at one time.
Flexible manufacturing and hybrid production: The modular vise can simultaneously clamp several different parts on a single machine for processing, meeting the customized requirements of multiple varieties and small batches.
Complete processing in a single operation: On the machining center, in conjunction with the automatic tool changing system, all milling, drilling, tapping, boring, etc. of a single part can be completed with one setup. The multi-position vise multiplies this advantage by several times.
IV. Selection Considerations
When choosing multi station vices, the following points need to be considered:
1. Part characteristics: dimensions, batch size, blank tolerance. For large batch sizes with stable dimensions, choose the integrated type; for small batch sizes with variable dimensions, choose the modular type.
2. Machine conditions: The size of the worktable (T-slot spacing and dimensions), the travel range, to ensure that the vise will not exceed the limit after installation.
3. Accuracy requirements: Check the repeatability positioning accuracy and key indicators such as parallelism/verticality of the vise to ensure they meet the requirements of the workpiece.
4. Clamping Force: Ensure that there is sufficient clamping force to counteract the cutting force and prevent the workpiece from moving.
5. Automated interface: If the product is intended for automation, it is necessary to select a model that supports pneumatic, hydraulic drive, or has a dedicated sensor interface.
Summarize
Multi station vices can become productivity multipliers. They are an important factor driving the manufacturing industry towards higher efficiency, greater consistency, lower costs, and higher automation.
Post time: Aug-20-2025
