TWI634215B - Self-tapping screw manufacturing method - Google Patents
Self-tapping screw manufacturing method Download PDFInfo
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- TWI634215B TWI634215B TW106123642A TW106123642A TWI634215B TW I634215 B TWI634215 B TW I634215B TW 106123642 A TW106123642 A TW 106123642A TW 106123642 A TW106123642 A TW 106123642A TW I634215 B TWI634215 B TW I634215B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
本發明係為一種自攻螺絲製造方法，包含有準備碳鋼線材之備料步驟；將碳鋼線材成型自攻螺絲之成型步驟；計算上述自攻螺絲所需硬化之鑽尾及螺牙數，使鑽尾部及需硬化之螺牙形成待加熱部之計算步驟；利用高週波裝置對待加熱部進行加熱，使該自攻螺絲之鑽尾部及若干道螺牙受高溫加熱而硬化，並使該待加熱部之鑽尾與螺牙加熱後之硬度達到HB 530~760之局部加熱步驟；將經局部高週波熱處理的自攻螺絲再進行表面處理之表面處理步驟；藉由上述步驟，俾提供一種降低製造成本、提高鑽孔能力之自攻螺絲製造方法。 The invention relates to a self-tapping screw manufacturing method, comprising the steps of preparing a carbon steel wire; forming a self-tapping screw for forming a carbon steel wire; calculating the number of hardened tails and screws required for the self-tapping screw; The drilling tail and the screw to be hardened form a calculation step of the portion to be heated; the heating portion is heated by the high-frequency device, so that the drill tail portion and the plurality of screw teeth of the self-tapping screw are hardened by high temperature heating, and the heating is to be heated The hardness of the drill tail and the screw is heated to a local heating step of HB 530~760; the surface treatment step of the surface treatment is performed by the local high-frequency heat treatment self-tapping screw; by the above steps, the crucible provides a reduced manufacturing process Self-tapping screw manufacturing method for cost and drilling capability.
Description
本發明係為一種自攻螺絲的製造方法，特別是指一種降低製造成本、提高鑽孔能力之自攻螺絲製造方法。 The invention relates to a manufacturing method of a self-tapping screw, in particular to a self-tapping screw manufacturing method for reducing manufacturing cost and improving drilling capability.
按，目前的自攻螺絲，其係於螺牙成型後，皆需進行淬火處理，藉以提高硬度，使該自攻螺絲得以順利攻入物件中；而該習用自攻螺絲的製造方法，主要係將母材經沖壓、滾牙(或搓牙、輾牙)形成螺頭、螺桿與鑽尾後，再將已成型的自攻螺絲送入連續爐中作滲碳處理，使該自攻螺絲藉由高溫加熱的方式達到淬火硬化，以提高該習用自攻螺絲的硬度。 According to the current self-tapping screws, after the screw is formed, it needs to be quenched to improve the hardness, so that the self-tapping screws can be smoothly penetrated into the object; and the manufacturing method of the self-tapping screws is mainly used. After the base material is punched, rolled (or fangs, fangs) to form a screw head, a screw and a drill tail, the formed self-tapping screw is sent into a continuous furnace for carburizing treatment, so that the self-tapping screw is borrowed The quench hardening is achieved by heating at a high temperature to increase the hardness of the conventional self-tapping screw.
惟查，由於上述習用自攻螺絲的硬化處理方法，係直接將自攻螺絲送入連續爐中加熱，使其全部位皆受高溫加熱硬化處理，然因自攻螺絲僅鑽尾部需淬火硬化，因此上述方法實具有成本浪費之缺失待改進。 However, due to the above-mentioned self-tapping screws hardening treatment method, the self-tapping screws are directly sent to the continuous furnace for heating, so that all the positions are subjected to high-temperature heat hardening treatment, but since the self-tapping screws only need to be hardened and hardened at the tail end, Therefore, the above method has a lack of cost waste to be improved.
本發明之目的，即在於改上述之缺失，俾提供一種降低製造成本、提高鑽孔能力之自攻螺絲製造方法。 SUMMARY OF THE INVENTION The object of the present invention is to provide a self-tapping screw manufacturing method which reduces manufacturing costs and improves drilling capability.
為達到上述目的，本發明自攻螺絲製造方法，包含有如下步驟：備料：準備碳鋼線材；成型：將上述之碳鋼線材成型螺頭、螺桿與鑽尾部，使形成 自攻螺絲；計算硬化長度：計算上述自攻螺絲所需硬化之鑽尾及螺牙數，使鑽尾部及需硬化之螺牙形成一待加熱部；局部高週波熱處理：將上述自攻螺絲之待加熱部利用高週波裝置進行加熱，使該自攻螺絲之鑽尾部及若干道螺牙受高溫加熱而硬化，並使該待加熱部之鑽尾與螺牙加熱後之硬度達到HB 530~760；表面處理：將經局部高週波熱處理的自攻螺絲再進行表面處理；藉由上述步驟，俾提供一種降低製造成本、提高鑽孔能力之自攻螺絲製造方法。 In order to achieve the above object, the self-tapping screw manufacturing method of the present invention comprises the following steps: preparing materials: preparing carbon steel wire rod; molding: forming the carbon steel wire rod to form a screw head, a screw and a tail portion of the drill to form Self-tapping screws; Calculate the hardening length: Calculate the number of drill tails and screw teeth required for the above self-tapping screws, so that the drill tail and the screw to be hardened form a part to be heated; local high-frequency heat treatment: the above self-tapping screws The heating part is heated by a high-frequency device, so that the drill tail portion and the plurality of screw teeth of the self-tapping screw are heated and hardened by high temperature, and the hardness of the drill tail and the screw tooth to be heated is up to HB 530~760. Surface treatment: The surface treatment is performed by a local high-frequency heat-treated self-tapping screw; by the above steps, a self-tapping screw manufacturing method for reducing the manufacturing cost and improving the drilling ability is provided.
10‧‧‧自攻螺絲 10‧‧‧ Self-tapping screws
A‧‧‧待加熱部 A‧‧‧To be heated
第1圖係本發明之步驟流程圖。 Figure 1 is a flow chart of the steps of the present invention.
第2圖係本發明計算得出自攻螺絲加熱長度之示意圖(一)。 Figure 2 is a schematic diagram (i) of the heating length of the self-tapping screw calculated by the present invention.
第3圖係本發明計算得出自攻螺絲加熱長度之示意圖(二)。 Figure 3 is a schematic diagram (2) of the heating length of the self-tapping screw calculated by the present invention.
有關本發明為達到目的所運用之技術手段，茲謹再配合第1圖所示之實施例，詳細說明如下：如第1圖所示，本發明之自攻螺絲製造方法，包含有如下步驟：備料：準備碳鋼(或稱黑鐵)線材。 The technical means for achieving the object of the present invention will be described in detail with reference to the embodiment shown in Fig. 1. As shown in Fig. 1, the self-tapping screw manufacturing method of the present invention comprises the following steps: Preparation: Prepare carbon steel (or black iron) wire.
成型：將上述之碳鋼線材成型螺頭、螺桿與鑽尾部，使形成 自攻螺絲10。 Molding: forming the above-mentioned carbon steel wire rod into a screw head, a screw and a tail portion of the drill to form Self-tapping screws 10.
計算硬化長度：計算上述自攻螺絲10所需硬化之鑽尾及螺牙數，使鑽尾部及需硬化之螺牙形成一待加熱部A(如第2、3圖所示)。 Calculating the hardening length: Calculate the number of drill tails and screw teeth that need to be hardened by the above self-tapping screws 10, so that the drill tail and the screw to be hardened form a portion A to be heated (as shown in Figs. 2 and 3).
局部高週波熱處理：將上述自攻螺絲10之待加熱部A利用高週波裝置進行加熱，使該自攻螺絲10之鑽尾部及若干道螺牙受高溫加熱而硬化，並使該待加熱部A之鑽尾與螺牙加熱後之硬度達到HB 530~760。 Local high-frequency heat treatment: heating the portion A to be heated of the self-tapping screw 10 by a high-frequency device, so that the drill tail portion and the plurality of screw teeth of the self-tapping screw 10 are hardened by high temperature heating, and the portion A to be heated is made The hardness of the drill tail and the screw after heating reaches HB 530~760.
表面處理：將經局部高週波熱處理的自攻螺絲10再進行表面處理(如：電鍍、塗裝)。 Surface treatment: The self-tapping screws 10 subjected to local high-frequency heat treatment are further subjected to surface treatment (for example, electroplating and coating).
藉由上述步驟，由於本發明係直接將碳鋼線材形成自攻螺絲10後，計算自攻螺絲10與物件鎖合時所需的硬化長度，即可計算得出鑽尾部及需硬化之螺牙數，然後再以高週波裝置對鑽尾部與須硬化之螺牙進行加熱，使該鑽尾部與螺牙可受熱而硬化，並使加熱硬化後之鑽尾部與螺牙之硬度達到HB 530~760，使提高其硬度；藉此，本發明利用高週波裝置對碳鋼製成之自攻螺絲10進行局部加熱，使加熱後之鑽尾部及部份螺牙硬化並具有良好的鑽孔能力，同時，由於鑽尾部上方亦有若干道螺牙同樣受高週波加熱硬化，因此當自攻螺絲10鑽尾部上方所設的螺牙與物件接觸時，該硬化之螺牙可確實對物件攻牙，使該自攻螺絲10可順利螺鎖於物件上，且該自攻螺絲10於部份硬化螺牙上方之螺牙仍具有良好韌性，因此由本發明製造法所製造之自攻螺絲10確具有良好之強度。 By the above steps, since the present invention directly forms the carbon steel wire into the self-tapping screw 10, the hardening length required for the self-tapping screw 10 and the object to be locked is calculated, and the drill tail and the screw to be hardened can be calculated. Then, the high-frequency device is used to heat the drill tail and the screw to be hardened, so that the drill tail and the screw can be hardened by heat, and the hardness of the drill tail and the screw after heat hardening reaches HB 530~760. Therefore, the hardness of the self-tapping screw 10 made of carbon steel is locally heated by the high-frequency device, so that the heated tail portion and a part of the screw are hardened and have good drilling ability, and at the same time Since several threaded teeth are also hardened by high frequency heating above the drill tail, when the screw provided above the tail of the self-tapping screw 10 is in contact with the object, the hardened screw can actually tap the object, so that The self-tapping screw 10 can be screwed onto the object smoothly, and the self-tapping screw 10 has good toughness on the screw above the hardened screw. Therefore, the self-tapping screw 10 manufactured by the manufacturing method of the invention has good performance. strength.
由是，從以上所述可知，本發明具有如下之優點： From the above, it can be seen that the present invention has the following advantages:
(一)由於本發明之自攻螺絲10係由碳鋼材質所製成，然後藉由高週波裝置對該自攻螺絲10之鑽尾部及部份螺牙進行局部加熱硬 化，而無須對自攻螺絲10全部位進行硬化，實可降低生產成本。 (1) Since the self-tapping screw 10 of the present invention is made of a carbon steel material, the drill tail portion and a part of the screw of the self-tapping screw 10 are locally heated by a high-frequency device. It is not necessary to harden all the bits of the self-tapping screws 10, which can reduce the production cost.
(二)由於本發明係利用高週波裝置對自攻螺絲10之鑽尾部與部份螺牙加熱硬化，其確可增加其硬度，並可提高自攻螺絲10鑽孔時之順暢性。 (2) Since the present invention utilizes a high-frequency device to heat-harden the drill tail portion and a part of the screw of the self-tapping screw 10, it can increase the hardness and improve the smoothness of the self-tapping screw 10 when drilling.
(三)由於本發明之製造方法係可依據自攻螺絲10鑽孔螺鎖物件之不同，而可依需求計算需加熱硬化之長度及螺牙數，然後利用高週波裝置對計算出之鑽尾部及部份螺牙進行加熱使其硬化，其確可提高自攻螺絲10之應用性。 (3) Since the manufacturing method of the present invention can be based on the difference of the drilling screw-locking object of the self-tapping screw 10, the length of the heat-hardening and the number of the screw can be calculated according to the demand, and then the tail of the drill is calculated by using the high-frequency device. And some of the screw teeth are heated to harden, which can improve the applicability of the self-tapping screw 10.
(四)由於本發明製造方法所製作之自攻螺絲10，由於其僅利用高週波裝置對自攻螺絲10局部加熱使其硬化，其仍保有碳鋼所具有之韌性，相較於全部位加熱硬化之螺絲10，由本發明製造方法所製作之自攻螺絲仍具有良好之強度。 (4) Since the self-tapping screw 10 manufactured by the manufacturing method of the present invention hardens the self-tapping screw 10 by using only a high-frequency device, it retains the toughness of the carbon steel, and is heated compared to all the positions. The hardened screw 10, which is made by the manufacturing method of the present invention, still has good strength.
故，從以上所述可知，本發明之確具有顯著之新穎性與進步性，且其方法、步驟確為未曾有過，誠已符合發明專利要件，爰依法提出專利申請，並祈賜專利為禱，至感德便。 Therefore, as can be seen from the above, the present invention does have significant novelty and progress, and its methods and steps are indeed unprecedented. Cheng has already met the requirements of the invention patent, and filed a patent application according to law, and prayed for a patent for prayer. To the sense of virtue.
以上所述，僅為本發明用以說明之可行實施例，因此並不能以其限制本發明之保護範圍，舉凡熟習此技藝者依本發明說明書及申請專利範圍所為之均等變化或修飾，皆應仍屬本發明所涵蓋之保護範圍。 The above descriptions are merely illustrative of the possible embodiments of the present invention, and thus the scope of the present invention should not be construed as limiting the scope of the present invention. It is still within the scope of protection covered by the present invention.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106123642A TWI634215B (en) | 2017-07-14 | 2017-07-14 | Self-tapping screw manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106123642A TWI634215B (en) | 2017-07-14 | 2017-07-14 | Self-tapping screw manufacturing method |
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| TWI634215B true TWI634215B (en) | 2018-09-01 |
| TW201908495A TW201908495A (en) | 2019-03-01 |
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| TW106123642A TWI634215B (en) | 2017-07-14 | 2017-07-14 | Self-tapping screw manufacturing method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021274A (en) * | 1975-03-26 | 1977-05-03 | Russell, Birdsall & Ward, Inc. | Method for heat treating by induced current |
| JPS5839729A (en) * | 1981-09-01 | 1983-03-08 | Toyota Motor Corp | Partial tempering method for carburized and hardened parts |
| TW201344068A (en) * | 2012-04-24 | 2013-11-01 | Shehkai Prec Co Ltd | Manufacturing method of self-drilling screw |
| WO2015029266A1 (en) * | 2013-08-30 | 2015-03-05 | 日東精工株式会社 | Induction-hardened tapping screw |
-
2017
- 2017-07-14 TW TW106123642A patent/TWI634215B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021274A (en) * | 1975-03-26 | 1977-05-03 | Russell, Birdsall & Ward, Inc. | Method for heat treating by induced current |
| JPS5839729A (en) * | 1981-09-01 | 1983-03-08 | Toyota Motor Corp | Partial tempering method for carburized and hardened parts |
| TW201344068A (en) * | 2012-04-24 | 2013-11-01 | Shehkai Prec Co Ltd | Manufacturing method of self-drilling screw |
| WO2015029266A1 (en) * | 2013-08-30 | 2015-03-05 | 日東精工株式会社 | Induction-hardened tapping screw |
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| TW201908495A (en) | 2019-03-01 |
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