Tool Clamping Chuck Spring-Loaded Coupling for Coolant Supply
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Solution Overview
Problem
Existing tool chucks face challenges in simplifying clamping depth adjustment while maintaining a reliable coolant/lubricating medium supply, as existing solutions often require complex adjustments that can disrupt the medium supply.
Innovation Solution
A tool chuck design featuring an elastically accommodated coupling sleeve with a tubular element and spring means, where a spiral spring presses the tubular element against an adjusting screw, ensuring tight contact and automatic compensation for position changes, allowing for clamping depth adjustment without impairing coolant supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adjusting screw is made adjustable relative to the chuck to enable clamping depth adjustment, then the ease of operation is improved, but the reliability of coolant supply deteriorates because the adjustment may disrupt the medium supply
Solution Approach 1:
The tubular element is designed to be displaceable within the coupling sleeve, allowing dynamic adjustment of its position. This displacement capability enables the system to adapt to different clamping depths while maintaining continuous contact with the adjusting screw, ensuring reliable coolant supply regardless of the screw's position.
Solution Approach 2:
The spring means automatically push the tubular element to bear against the adjusting screw, creating a self-adjusting mechanism. When the adjusting screw moves to different positions, the spring-driven tubular element automatically compensates by displacing within the coupling sleeve, maintaining tight contact and ensuring continuous coolant supply without manual intervention.
2Adaptability or versatility
If the tubular element is made displaceable in the coupling sleeve to compensate for position changes, then the adaptability is improved, but the device complexity increases due to additional components
Solution Approach 1:
The function of the tubular element serves dual purposes: it acts as both a structural component of the coupling mechanism and a displacement element for position compensation. By merging these functions into a single component, the design achieves adaptability without proportionally increasing complexity.
Solution Approach 2:
The tubular element performs multiple functions simultaneously: it transmits coolant, compensates for position changes of the adjusting screw, and maintains sealing within the coupling sleeve. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving high adaptability.
3Reliability
If spring means are added to press the tubular element against the adjusting screw to ensure tight contact, then the reliability of medium supply is improved, but the device complexity increases
Solution Approach 1:
The spring means are pre-loaded to continuously push the tubular element against the adjusting screw, establishing tight contact before any adjustment operation begins. This preliminary action ensures that regardless of subsequent movements or position changes, the contact is maintained, guaranteeing reliable coolant supply.
Solution Approach 2:
The spring-driven mechanism automatically maintains contact between the tubular element and adjusting screw without requiring external control or adjustment. The spring's elastic force continuously compensates for any gaps or position variations, creating a self-regulating system that ensures reliable medium supply.
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
Enables simple and reliable clamping depth adjustment from either the tool or machine side without compromising coolant/lubricant delivery, ensuring consistent medium supply to the tool.
Implementation Method 1
spring means are provided, which provide a spring deflection of the tubular element in the direction of the longitudinal axis of the chuck, so that the tubular element is pressed resiliently against the adjusting screw
Implementation Method 2
the spring means comprise a spiral spring which is preferably arranged on the outside of the tubular element
Data Source
Figure 1
Figure 2A~2B
AI summary
A tool clamping chuck (1) designed for automatic clamping by means of an automatic spindle on a machine comprises a device (10) for supplying a coolant or lubricant to a medium duct (8) of a tool (7) held in the clamping chuck (1). A coupling sleeve (11) which serves as a coupling for a supply line of a clamping device that supplies coolant or lubricant is arranged in the clamping chuck (1) and elastically received in the clamping chuck. An adjusting screw with a through-hole is arranged after the coupling sleeve (11), in the direction of the tool (7). The adjusting screw can be moved relative to the clamping chuck (1) along a longitudinal axis (2) of the clamping chuck (1). A tubular element (12) is guided in the coupling sleeve (11), can be moved in the coupling sleeve (11) along the longitudinal axis (2) of the clamping chuck (1), and points in the direction of the adjusting screw (13). According to the invention, a spring system (14) is arranged in such a way that it allows the tubular element (12) to move in a spring-supported manner along the longitudinal axis (2) of the clamping chuck (1) and to be pressed against the adjusting screw (13) by the force of the spring.