臺灣博碩士論文加值系統

釘子在日常生活中常被使用於結合元件，因釘槍具有快速方便安全等優點，尤其是需大量使用釘子時，釘槍是最常用於將釘子釘入物體的工具，日常生活中使用的釘槍可分為氣動與電動兩種，氣動釘槍於使用時需有泵浦作為其動力源，然後連結管線至氣動釘槍上，因此行動上會有管線限制，且需攜帶泵浦，但其優點是釘槍本身重量輕，適合長時間操作。至於電動釘槍又可分為兩種，一種是插電式釘槍，亦即需要有電線連結釘槍與電源插座，優點是不需有泵浦，缺點是釘槍重量較重，也有電源線於行動上的限制，另一種則是充電式釘槍，其動力來源為電池，此種釘槍無電源線，於行動上就不會受限制，缺點是重量最重，電池使用時間有限，功率較低。
充電式釘槍重量較大的原因，一為需有電池於釘槍上，二為其驅動機構，本文主要針對充電式釘槍驅動機構進行探討，瞭解釘槍驅動機構各種設計優缺點。本研究假設不同類型釘槍擊發相同釘子至同樣木材上時應具有相同的動能，再利用此原理來設計產生同樣大小動能的驅動機構。文中首先利用市面上現有的氣動釘槍與電動釘槍進行測試來驗證所需能量相同，然後利用此能量值作為設計凸輪、滑塊與彈簧驅動機構基準。
驅動機構設計分別針對了利用飛輪結合滾柱的一階與二階凸輪及直面與曲面從動滑塊進行探討，分析各式設計優缺點，不論一階或二階凸輪，直面從動滑塊設計均具有較低的滾柱衝擊力與較小的輸入扭矩需求。本研究資訊可供未來電動釘槍進行最佳化設計作參考。

Nails are often been used to joint parts in daily life. Because nail guns have the advantage of fast, convenient, and safe in use especially when large number of nails are to be nailed. Electric nail gun and pneumatic nail gun are two common types of nail gun used in daily life. Pneumatic nail gun needs pump as power source and a plastic tube is connected from pump to the nail gun. Therefore, pneumatic nail gun has the drawback of mobility of user being constrained and a pump needed. But the advantage is very light in weight so it is suitable for using in over a long period of time. The electric nail gun can be separated into two types according to power source. One is having an electric wire and plug with it and just put the plug into socket then uses. This type gun does not need pump so it is easy to carry. But it has wire connecting to socket which will constrain the mobility of user, and also is heavier than pneumatic nail gun. The other one is cordless nail gun, which uses rechargeable battery as power source. This type of gun has the best mobility for user but is heaviest among all and has lowest power.
The heavy weight of rechargeable battery type nail gun are coming from the batter and driving mechanism. This thesis is focus on the driving mechanism of rechargeable battery type nail gun. In this study, a hypothesis is made. That is no matter what kind of nail gun is used, the dynamic energy needed will be the same when driving same nail into same material. An experiment is conducted in this research to verify this hypothesis. Based on this hypothesis, a pneumatic nail gun is used to find the energy needed for design the cam-slider-spring driving mechanism of rechargeable battery nail gun.
The one-step type and two-step type cams, which constructed of flywheel and roller, with slider having curved surface and straight surface are discussed and analyzed. No matter one-step or two-step cam, the straight surface design has lower impact force on roller and smaller torque needed. This study can provide information for future study on optimal design of electric nail gun.

摘要 I
ABSTRACT II
目錄 IV
圖目錄 VII
表目錄 XI
符號說明 XII
第一章 緒論 1
1.1前言 1
1.2文獻回顧 8
1.3研究動機與目的 10
1.4研究方法與流程圖 11
1.5論文架構 13
第二章 釘槍簡介 14
2.1飛輪滑塊電動釘槍 14
2.1.1內部元件 15
2.1.2做動原理 15
2.2線圈激磁電動釘槍 15
2.2.1內部元件 16
2.2.2作動原理 16
2.3氣動釘槍 17
2.3.1內部元件 17
2.3.2做動原理 18
2.4市面上常見釘子類型 19
第三章 驅動機構之設計 20
3.1 實驗證明動能守恆 20
3.1.1實驗裝置 21
3.1.2 氣動釘槍(ㄇ釘) 23
3.1.2.1量測ㄇ釘飛行速度 25
3.1.3 電動釘槍(ㄇ釘) 25
3.1.3.1 量測ㄇ釘飛行速度 28
3.1.3.2反推彈簧常數 29
3.1.4 數據整理 29
3.2彈簧之設計 30
3.2.1由動能相等推導彈簧常數公式 31
3.2.2螺旋壓縮彈簧之設計 32
3.2.3螺旋壓縮彈簧強度之檢驗 37
3.3飛輪傳動機構之說明 38
3.3.1單階飛輪與單階滑塊之設計 38
3.3.2雙階飛輪與雙階滑塊之設計 40
第四章 電腦輔助模擬分析 43
4.1驅動機構動態模擬 43
4.1.1 動態模擬材質設定 44
4.1.2動態模擬邊界條件設定 44
4.1.3驅動源設定 45
4.1.4機構動態模擬結果 45
4.2機件強度模擬分析 51
4.2.1 滑塊強度分析 52
4.2.2飛輪滾柱強度分析 55
第五章 結論與建議 57
5.1結論 57
5.2建議 57
參考文獻 58

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