Electro-spindle Operating Assembly for Wood Pin Insertion
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Solution Overview
Problem
Existing operating assemblies for inserting connection pins into wood components are complex, expensive, and lack flexibility and versatility.
Innovation Solution
An operating assembly comprising an electro-spindle with a removable equipment set, including a feeding unit for liquid and an insertion unit for pins, utilizing an electro-spindle with a coupling device and actuator to facilitate efficient pin insertion, and a frame with dual systems for feeding and inserting pins in opposite directions, supported by a pneumatic feed device and actuator cylinders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed operating assembly with dedicated actuation devices is used, then the machine can perform machining operations, but the device complexity and cost increase while flexibility and versatility decrease
Solution Approach 1:
The patent applies universality by enabling the electro-spindle to perform multiple functions: it can hold both cutting tools for machining operations and connection pins for insertion operations. The equipment set includes both a cutting tool and connection pins that can be mounted on the same spindle, allowing one machine to replace multiple specialized machines, thereby reducing overall device complexity while maintaining operational reliability
Solution Approach 2:
The patent implements dynamics through the removable equipment set that can be quickly changed on the electro-spindle. The coupling device with gripping member and actuator allows dynamic reconfiguration of the spindle tooling during operation, enabling the machine to adapt between different operations (machining vs. pin insertion) without requiring fixed dedicated actuators for each function
2Ease of operation
If specialized actuation devices are provided for moving gripping system and operating head, then machining operations can be performed, but the machine becomes expensive and less flexible
Solution Approach 1:
The electro-spindle serves as a universal mounting platform that can accommodate both cutting tools and connection pins. The same spindle and coupling mechanism used for tool changing can also handle pin insertion, eliminating the need for separate specialized actuation devices and thereby improving machine versatility while maintaining ease of operation through standardized interfaces
Solution Approach 2:
The patent extracts the connection pin insertion function from a separate dedicated actuation system and integrates it into the existing electro-spindle mechanism. By removing pins from the equipment set and mounting them on the spindle alongside cutting tools, the system eliminates redundant actuation devices while preserving operational ease through the existing spindle control infrastructure
3Adaptability or versatility
If a removable equipment set is used on the electro-spindle, then flexibility and versatility improve, but device complexity increases
Solution Approach 1:
The equipment set is segmented into modular components: the electro-spindle body, the removable equipment set containing cutting tools or connection pins, and the coupling device with gripping member. This segmentation allows each component to be optimized independently and facilitates easy replacement and reconfiguration, improving versatility while managing complexity through standardized modular interfaces
Solution Approach 2:
The coupling device acts as an intermediary between the electro-spindle and the removable equipment set. The gripping member within the coupling device provides the interface for securing or releasing tools and pins, simplifying the complexity by providing a standardized mediation mechanism that handles the complexity of tool retention and release without requiring complex integration in the main spindle design
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
The solution provides a cost-effective and flexible method for inserting connection pins into wood components, leveraging existing machine actuation devices and allowing for manual or automatic tool changes, enhancing the operational efficiency and versatility of the assembly.
Implementation Method 1
an electro-spindle (5) and equipment (6) fitted on the electro-spindle (5) in a removable manner. The electro-spindle (5) comprises an external tubular casing (7) housing an electric motor known and not illustrated inside it provided with a rotor keyed to a tubular output shaft (8)
Implementation Method 2
cooperates with a pneumatic feed device (not illustrated) designed to move the pins (2) in succession along said duct (23)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An operating assembly for the insertion of connection pins (2) into wood components (4), or the like, has an electro-spindle (5), an equipment (6) defined by a feeding unit (19) to feed a liquid into a housing hole (3) made in a wood component (4), or the like, and an insertion unit (20) to insert a connection pin (2) into the housing hole (3) and a coupling device (13) to fit the equipment (6) onto the electro-spindle (5) in a removable manner.