Drilling Machine Feed Screw Layout for Accurate Ram Feeding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional drilling machines face challenges in manufacturing ease and feeding accuracy.
Innovation Solution
The drilling machine design includes a spindle, spindle motor, box-shaped frame with linear motion guide support, ram support plate, slider, feed screw, and feed motor, with specific fittings and adjustments to ensure high accuracy and ease of manufacturing, featuring a spline shaft and nut configuration for precise movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional drilling machine structures are used, then manufacturing is relatively simple, but feeding accuracy is insufficient
Solution Approach 1:
The frame is divided into multiple support plates (linear motion guide support plate, motor support portion, ram support plate) with distinct functions. Each plate is positioned at different heights to accommodate specific components, allowing independent optimization of each segment for both manufacturing ease and precision functionality.
Solution Approach 2:
The patent utilizes vertical dimension differentiation by positioning support plates at different heights within the frame. The motor support portion is disposed at a higher position than the ram support plate, creating a three-dimensional arrangement that optimizes component placement for both manufacturing accessibility and feeding accuracy.
2Ease of manufacture
If the ram support plate is positioned at the same height as the motor support portion, then manufacturing is easier, but the feed screw cannot be properly disposed above the ram
Solution Approach 1:
The frame structure employs asymmetric positioning where the motor support portion is deliberately disposed at a higher position than the ram support plate. This asymmetric arrangement creates the necessary vertical space for the feed screw to be disposed above the ram, enabling proper feeding functionality while maintaining manufacturing feasibility through clear spatial separation.
3Ease of operation
If the slider height is made different from the motor support portion height, then component clearance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The frame is designed with pre-established height differences between support plates and the slider during manufacturing. The motor support portion is positioned at a predetermined higher level than the ram support plate, and the slider height is pre-coordinated to match the motor support portion. This preliminary dimensional planning ensures adequate clearance for feed screw disposal while maintaining manufacturing precision through design-stage specification rather than post-assembly adjustment.
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 design allows for easy manufacturing and high feeding accuracy, enabling efficient processing of workpieces with improved precision and adaptability.
Implementation Method 1
a feed screw including a screw shaft having a rear end supported by the motor support portion and a front end that is a free end, the screw shaft disposed above the ram, and a nut fastened to the nut mounting hole
Implementation Method 2
a linear motion guide disposed on the reference surface; a slider having a nut mounting hole at an upper portion, the slider having a lower end connected to the linear motion guide configured to reciprocate along the linear motion guide
Data Source
AI summary
The drilling machine includes a spindle, a spindle motor, a frame including, a linear motion guide support plate, a motor support portion, and a ram support plate disposed at a front end of the linear motion guide support plate, and having a height lower than the motor support portion, a linear motion guide disposed on the reference surface, a slider having a nut mounting hole to reciprocate along the linear motion guide, and having a height substantially the same as the motor support portion, a ram penetrating the first ram guide hole, a feed screw including a screw shaft having a rear end supported by the motor support portion and a front end that is a free end, and a nut fastened to the nut mounting hole; and a feed motor connected to the screw shaft.