s-t fixture German s-t model s-t price

s-t fixtures use hydraulic components to replace mechanical parts, achieving automatic positioning, support, and clamping of workpieces through hydraulic control. They offer advantages such as high clamping force, reliable clamping, stable operation, and ease of use. Currently, they are widely used in scenarios such as CNC machine tools, machining centers, and automated production lines. By assembling selected hydraulic components with designed mechanical parts, the required fixture can be obtained. Hydraulic fixtures ensure accurate positioning and secure clamping of workpieces at specified positions, and can reduce vibration and deformation during machining through floating supports. They can also utilize automatic control to press down and lift pressure plates, clearing the clamping position during machining. Hydraulic fixtures can withstand large cutting forces during rough machining, ensure accurate positioning during precision machining, and perform support, clamping, and quick release tasks that manual fixtures cannot accomplish.

s-t fixture structure

The cross-sectional shape and distribution of the magnetic poles vary depending on the workpiece. Common structures of electromagnetic chucks include rectangular and circular types. Rectangular magnetic poles are arranged either longitudinally or transversely. Longitudinal arrangement of rectangular magnetic poles is suitable for securing larger workpieces; transverse arrangement is suitable for securing smaller workpieces. Circular chucks are suitable for securing ring-shaped workpieces or workpieces with complex shapes. The main characteristics of standard electromagnetic chucks are: magnetic flux lines are evenly distributed on the disk surface, magnetic attraction cannot be concentrated, and the magnetic force per unit area is relatively small; the direction of magnetic force is perpendicular to the chuck surface and difficult to change, producing only one type of magnetic force for workpieces with the same contact area; the point of action of the magnetic force on the workpiece is limited to the contact surface between the workpiece and the chuck, and cannot be changed arbitrarily. Therefore, disadvantages during machining include low positioning accuracy, insufficient clamping force, narrow scope of application, and low production efficiency.

s-t fixture features

1) Chuck holding force: Electrically controlled powerful chucks have extremely strong holding force, up to 16kg/cm², with uniform and adjustable magnetic distribution, suitable for various heavy-duty machining, rough machining, and precision machining; standard powerful chucks have weaker and uneven holding force, unable to meet the requirements of heavy-duty machining operations. 2) Machining accuracy: The holding force of electrically controlled powerful chucks does not require a continuous power supply to maintain, generating no heat during continuous operation, thus avoiding thermal deformation of the workpiece. Meanwhile, the strong and uniform surface holding force ensures the highest machining accuracy even if the workpiece extends beyond the table surface; whereas standard electromagnetic chucks require a continuous current supply to maintain magnetic force, generating heat after a period of operation, which not only causes thermal deformation of the workpiece but also reduces the chuck's magnetic force, failing to guarantee machining accuracy. 3) Performance: Electrically controlled powerful chucks can be used continuously, even for more than 20 hours per day, without any failures or need for maintenance; standard permanent magnet chucks show a decline in holding force after about half a year of use, while electromagnetic chucks can only operate for a few hours a day, are prone to malfunctions, and require frequent replacement and repair of internal components. 4) Operational efficiency: Standard powerful chucks require significant time for workpiece adjustment during use, accounting for 40%-50% of the entire machining process. Clamping and positioning are prone to obvious errors, resulting in a high scrap rate and very low efficiency; electrically controlled powerful chucks feature automatic auxiliary positioning, completing workpiece clamping or release in just 0.3 seconds with the simple press of a button, significantly improving production efficiency.

s-t fixture applications

1) Consistently ensures workpiece machining accuracy: When using fixtures to clamp workpieces, the positional accuracy of the workpiece relative to the tool and machine tool is guaranteed by the fixture, unaffected by the worker's skill level, ensuring consistent machining accuracy for a batch of workpieces. 2) Reduces auxiliary time and improves labor productivity: Using fixtures for workpiece clamping is convenient and fast, eliminating the need for marking and alignment, significantly reducing auxiliary time; clamping workpieces in fixtures increases their rigidity, allowing for increased cutting parameters; fixtures capable of clamping multiple workpieces or multi-station setups can be used, along with high-efficiency clamping mechanisms, further improving labor productivity. 3) Expands the usage range of machine tools, achieving multi-functionality: Depending on the forming motion of the machining tool, attaching different types of fixtures can expand the original process range of the machine tool. For example, installing boring jigs on the carriage of a lathe or the table of a radial drilling machine allows for boring operations on box-type parts. 4) Ensures machining accuracy: Using fixtures for installation accurately determines the mutual position between the workpiece, machine tool, and tool. The positional accuracy of the workpiece is guaranteed by the fixture, unaffected by the worker's skill level, resulting in high and stable machining accuracy. 5) Increases productivity and reduces costs: Clamping workpieces with fixtures allows for rapid positioning and clamping without alignment, significantly reducing auxiliary time; clamping workpieces in fixtures increases their rigidity, allowing for increased cutting parameters; multi-workpiece and multi-station fixtures can be used with high-efficiency clamping mechanisms, all of which contribute to higher labor productivity. Additionally, using fixtures stabilizes product quality, reduces scrap rates, allows for the assignment of lower-skilled workers, and significantly lowers production costs. 6) Expands the process range of machine tools: Using special-purpose fixtures can change the original purpose of the machine tool and expand its usage range, achieving multi-functionality. For example, installing boring jig fixtures on lathes or radial drilling machines allows for boring operations on hole patterns of box-type parts; special-purpose fixtures can also convert lathes for broaching operations, fully utilizing the capabilities of general-purpose machine tools. 7) Reduces workers' labor intensity: Clamping workpieces with fixtures is convenient and fast. When using pneumatic, hydraulic, or other clamping devices, workers' labor intensity can be reduced.

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