Cold Rolling Tool Slide With Motorized Rolling Bar Adjustment
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Solution Overview
Problem
Cold rolling machines without a machine axis for adjusting tool slides require manual and labor-intensive processes to change the position of rolling rods, which complicates the adjustment of profile distances between tool units and compromises the stability of forming forces during the production of profiles on workpieces.
Innovation Solution
A tool unit for a cold rolling machine featuring a linearly movable tool slide with a carrier and an adjusting device driven by an electric motor, allowing for automated positioning of rolling rods and enabling precise adjustment of profile distances between rolling bars, while a clamping device secures the rolling rods in place to support forming forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual adjustment of rolling rod position is used in cold rolling machines without a machine axis, then device complexity is reduced, but adjustment precision and productivity deteriorate due to labor-intensive operations
Solution Approach 1:
The patent replaces the manual mechanical adjustment system with an automated motor-driven system. The adjustment motor (26) with spindle assembly (27) automatically positions the carrier (15) and rolling rod (18) in the working direction, eliminating manual intervention while maintaining structural simplicity through targeted automation of only the adjustment mechanism.
2Device complexity
If manual adjustment of rolling rod position is used, then device complexity is reduced, but manufacturing precision deteriorates due to inability to precisely control profile distance
Solution Approach 1:
The patent replaces manual positioning with motor-driven automated positioning system. The adjustment motor (26) controls the carrier (15) movement along the tool carriage (12), enabling precise control of the rolling rod (18) position in the working direction (Z). This ensures accurate profile distance between rolling rods while keeping the overall structure relatively simple through selective automation.
3Reliability
If rolling rod is securely clamped to tool carriage, then forming force stability is improved, but adjustment capability deteriorates due to fixed positioning
Solution Approach 1:
The patent implements a dynamic system where the clamping device (19) can switch between clamped and released states. During adjustment, the clamping force is released allowing the adjustment motor (26) to move the carrier (15). During operation, the clamping device secures the rolling rod (18) to the tool carriage (12), ensuring stable force transmission. This dynamic switching resolves the contradiction between stability and adjustability.
Solution Approach 2:
The system performs preliminary action by pre-positioning the carrier (15) and rolling rod (18) to the desired location using the adjustment motor (26) before engagement. The clamping device (19) is then activated to secure the positioning, ensuring both accurate initial placement and stable subsequent operation without requiring continuous adjustment during forming.
4Productivity
If automated adjustment system is introduced, then productivity is improved, but device complexity increases due to additional motor and control components
Solution Approach 1:
The patent introduces automation only for the adjustment function, using a motor (26) with spindle assembly (27) to replace manual operation. The core forming mechanism remains mechanically simple with direct clamping and support structures. This selective automation achieves high productivity in positioning while maintaining overall structural simplicity.
Solution Approach 2:
The patent segments the system into independent functional modules: the adjustment mechanism (motor 26 with spindle 27) for positioning, the clamping device (19) for securing, and the support structure for force bearing. This modular segmentation allows automated adjustment functionality to be added without complicating the entire system, as each module performs its specific function independently.
5Manufacturing precision
If automated adjustment system is introduced, then manufacturing precision is improved, but device complexity increases due to additional motor and control components
Solution Approach 1:
The patent replaces manual positioning with motor-driven automated positioning system. The adjustment motor (26) controls the carrier (15) movement along the tool carriage (12), enabling precise control of the rolling rod (18) position in the working direction (Z). This ensures accurate profile distance between rolling rods while keeping the overall structure relatively simple through selective automation.
Solution Approach 2:
The patent segments the system into independent functional modules: the adjustment mechanism (motor 26 with spindle 27) for positioning, the clamping device (19) for securing, and the support structure for force bearing. This modular segmentation allows automated adjustment functionality to be added without complicating the entire system, as each module performs its specific function independently.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates automated and precise adjustment of profile distances between rolling bars, enhancing the stability and efficiency of profile formation on workpieces by supporting forming forces and reducing manual intervention, thus improving the overall process efficiency and accuracy.
Implementation Method 1
The adjustment device has an adjustment motor. The adjustment motor is preferably an electric motor.
Implementation Method 2
The adjustment motor can be drive-connected to the carrier via a gear, preferably a wedge-face gear.
Implementation Method 3
The clamping device is designed to urge the rolling rod against the carrier in the working direction by means of the at least one clamping body.
Implementation Method 4
The cold rolling machine is designed to cold-form a cylindrical workpiece in order to produce a profile, such as a toothing or a thread, on its outer surface.
Data Source
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AI summary
The invention relates to a tool unit (10) for a cold rolling mill (11). The tool unit (10) has a tool slide (12) that is linearly movable in a longitudinal direction (X). A carrier (15) for a rolling bar (18) of the tool unit (10) is provided on the tool slide (12). The carrier (15) can be positioned in a working direction (Z) by means of an adjusting device (25). For this purpose, the carrier (15) can preferably be moved linearly in the working direction (Z). In the working direction (Z), the rolling bar (18) is supported on the carrier (15) and is clamped against the carrier by means of a clamping device (19). The clamping device (19) has at least one clamping element (36) for this purpose, which is movable in the working direction (Z) against a clamping force (F) and bears against the rolling bar (18). The clamping device is preferably not directly connected to the carrier (15).The clamping force (F) is supported on the tool slide (12), in particular bypassing the carrier (15).