TWM519186U - Improved self drilling screw - Google Patents
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- TWM519186U TWM519186U TW104220873U TW104220873U TWM519186U TW M519186 U TWM519186 U TW M519186U TW 104220873 U TW104220873 U TW 104220873U TW 104220873 U TW104220873 U TW 104220873U TW M519186 U TWM519186 U TW M519186U
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Description
本創作係一種改良型鑽尾螺絲，尤指具有高鑽孔效率之改良型鑽尾螺絲。This creation is an improved drill-tail screw, especially an improved drill-tail screw with high drilling efficiency.
習知的鑽尾螺絲包含一螺絲頭、一螺絲本段、一排屑段及一鑽尾刀刃，該螺絲本段係形成於該螺絲頭底端並向下延伸，該螺絲本段具有一本段桿部及一本段螺紋部，該本段螺紋部係形成於該本段桿部的外周面，該排屑段係形成於該螺絲本段的底端並向下延伸，該排屑段具有一排屑桿部及一排屑螺紋部，該排屑桿部的一端銜接該本段桿部，該排屑螺紋部係形成於該排屑桿部的外周面，其中該排屑螺紋部包含至少一道螺紋，且所述螺紋環繞該排屑桿部且環繞的圈數大於一圈，該鑽尾刀刃係形成於該排屑桿部的底端。The conventional self-drilling screw includes a screw head, a screw segment, a chip segment and a drill tail blade. The screw segment is formed at a bottom end of the screw head and extends downward. The screw has a copy of the segment. a segmented rod portion and a segment of the threaded portion, the threaded portion of the segment is formed on an outer peripheral surface of the rod portion of the segment, the chip removing portion is formed at a bottom end of the screw portion and extends downward, the chip removing portion Having a row of chip portions and a chip threading portion, one end of the chip removing rod portion is connected to the rod portion of the segment, and the chip threading portion is formed on an outer circumferential surface of the chip discharging rod portion, wherein the chip threading portion At least one thread is included, and the thread surrounds the chip removal rod portion and the number of turns is greater than one turn, and the drill tail cutting edge is formed at the bottom end of the chip removal rod portion.
當在將該鑽尾螺絲鑽入一工件時，該鑽尾刀刃會在該工件的表面鑽出一開孔，該鑽尾刀刃所鑽出之工件碎屑會沿著該排屑段之排屑螺紋部排出，並可藉由該本段螺紋部進行攻牙及鎖固的功能，然而排屑時，該些工件碎屑必須沿著該排屑螺紋部之螺紋移動，因此當該排屑螺紋部的螺紋環繞該排屑桿部的圈數越多，排屑的效率越差，其中，若排屑效率不佳時，在鑽孔時會因為工件碎屑組塞於該工件之開孔內，而導致使用者在進行鑽孔時較為費力，進而容易產生因工作溫度過高，喪失鑽孔能力之情形。When the drill tail screw is drilled into a workpiece, the drill tail blade drills an opening in the surface of the workpiece, and the workpiece debris drilled by the drill tail blade is along the chip discharge section. The threaded portion is discharged and can be tapped and locked by the threaded portion of the segment. However, when chipping, the workpiece debris must move along the thread of the chip threading portion, so when the chip thread is threaded The more the number of turns of the thread around the chip removal rod portion, the worse the efficiency of chip removal. If the chip removal efficiency is not good, the workpiece debris will be inserted into the opening of the workpiece during drilling. As a result, the user is more laborious in drilling, and thus it is easy to cause a situation in which the working temperature is too high and the drilling capability is lost.
另外，本段螺紋部進行攻牙時是以螺紋硬擠壓入工件內，並無切削能力，當鑽鎖較厚之工件時，可能會因為扭力過大，而導致螺絲斷裂，甚至作業人員在使用鎖螺絲裝置時，鎖螺絲裝置可能會因為無法旋動螺絲而產生反轉，造成作業人員手部扭傷之情形。In addition, when the tapping part of this section is tapped hard into the workpiece with thread, there is no cutting ability. When the workpiece is thicker, the screw may be broken due to excessive torque, and even the operator is using it. When the screw device is locked, the lock screw device may reverse due to the inability to rotate the screw, causing a sprain of the operator's hand.
本創作之主要目的在於提供一改良型鑽尾螺絲，希藉此改善現今鑽尾螺絲鑽孔時，排屑及攻牙的效率不佳之問題。The main purpose of this creation is to provide an improved self-drilling screw to improve the efficiency of chip removal and tapping during drilling of today's drill-tail screws.
為達成前揭目的，本創作之改良型鑽尾螺絲包含： 一螺絲頭； 一螺絲本段，其係形成於該螺絲頭的底端並向下延伸，該螺絲本段具有一本段桿部、一本段螺紋部及一第一攻牙螺紋部，該本段螺紋部係形成於該本段桿部外周面的上部，該第一攻牙螺紋部係形成於該本段桿部外周面的下部，該本段螺紋部的外徑與該第一攻牙螺紋部的外徑相同； 一螺絲末段，其係形成於該螺絲本段的底端並向下延伸，該螺絲末段包含一末段桿部、一第二攻牙螺紋部及一排屑螺紋部，該末段桿部形成於該本段桿部的底端，該第二攻牙螺紋部形成於該末段桿部外周面的上部，並連接該第一攻牙螺紋部，且該第二攻牙螺紋部的外徑小於該第一攻牙螺紋部的外徑，該排屑螺紋部係形成於該末段桿部外周面的下部，該螺絲末段的排屑螺紋部包含複數道螺紋，該些螺紋環繞該末段桿部，且該些螺紋環繞該末段桿部的圈數少於一圈，該排屑螺紋部的外徑小於該第二攻牙螺紋部的外徑；以及 一鑽尾刀刃，其係形成於該螺絲末段底端之尖形扁平體，該鑽尾刀刃的寬度小於該第二攻牙螺紋部的外徑，且該鑽尾刀刃的寬度大於該排屑螺紋部的外徑。In order to achieve the previous purpose, the improved drill screw of the present invention comprises: a screw head; a screw segment formed on the bottom end of the screw head and extending downward, the screw has a section of the rod portion a threaded portion and a first tapping thread portion are formed on an upper portion of the outer peripheral surface of the rod portion of the segment, and the first tapping thread portion is formed on the outer peripheral surface of the rod portion of the segment a lower portion, the outer diameter of the threaded portion of the segment is the same as the outer diameter of the first tapping thread portion; a screw end portion is formed at a bottom end of the screw portion and extends downward, the end portion of the screw includes a last rod portion, a second tapping thread portion and a chip threading portion, the last rod portion is formed at a bottom end of the rod portion of the segment, and the second tapping thread portion is formed at the end portion of the rod portion An upper portion of the outer peripheral surface is connected to the first tapping thread portion, and an outer diameter of the second tapping thread portion is smaller than an outer diameter of the first tapping thread portion, and the chip threading portion is formed on the end rod a lower portion of the outer peripheral surface, the threaded thread portion of the end portion of the screw includes a plurality of threads, and the threads surround the end portion And the number of turns of the thread around the end rod portion is less than one turn, the outer diameter of the chip threading portion is smaller than the outer diameter of the second tapping thread portion; and a drill tail blade is formed on the a pointed flat body at the bottom end of the screw end portion, the width of the drill tail cutting edge is smaller than the outer diameter of the second tapping thread portion, and the width of the drill tail cutting edge is larger than the outer diameter of the chip removing thread portion.
本創作改良型鑽尾螺絲在鑽入一工件時，該鑽尾刀刃會在該工件的表面鑽出一開孔，該工件所產生之工件碎屑會沿著該排屑螺紋部排出該開孔，其中由於該排屑螺紋部的螺紋環繞該末段桿部的圈數少於一圈，因此所述工件碎屑可以快速排出，此外，當該改良型鑽尾螺絲的第二攻牙螺紋部鑽入該工件時，該工件的開孔內壁會形成一配合該第二攻牙螺紋部之螺牙，故當該鑽尾螺絲繼續轉動時，該改良型鑽尾螺絲會產生一下壓力作用於該鑽尾刀刃上，並配合該排屑螺紋部的排屑效果，可使鑽孔時較為省力，以增加鑽孔效率。When the drill collar screw of the present invention is drilled into a workpiece, the drill blade will drill an opening in the surface of the workpiece, and the workpiece debris generated by the workpiece will be discharged along the thread thread portion of the workpiece. Wherein the workpiece debris can be quickly discharged because the number of turns of the thread of the chip threaded portion around the end portion of the rod is less than one turn, and further, when the second tapping thread portion of the modified drill screw When drilling the workpiece, the inner wall of the opening of the workpiece forms a thread that matches the thread of the second tapping thread, so that when the tail screw continues to rotate, the modified self-drilling screw generates a downward pressure on the workpiece. The drilling tail blade and the chip removing effect of the chip threading portion can make the drilling process more labor-saving and increase the drilling efficiency.
請參閱圖1至圖3，為本創作改良型鑽尾螺絲之二種較佳實施例，其包含一螺絲頭10、一螺絲本段20、一螺絲末段30及一鑽尾刀刃40。Please refer to FIG. 1 to FIG. 3 , which are two preferred embodiments of the improved drill tail screw, which comprises a screw head 10 , a screw section 20 , a screw end section 30 and a drill tail cutting edge 40 .
該螺絲頭10可以為半圓球狀、六角形或平頂圓錐狀等，其中該螺絲頭10的頂面可進一步形成一六角形或十字形等之凹口(圖未示)。The screw head 10 can be a semi-spherical shape, a hexagonal shape or a flat-topped conical shape, etc., wherein the top surface of the screw head 10 can further form a hexagonal or cross-shaped recess (not shown).
如圖1所示，該螺絲本段20係形成於該螺絲頭10的底端並向下延伸，該螺絲本段20具有一本段桿部21、一本段螺紋部22及一第一攻牙螺紋部23，該本段螺紋部22係形成於該本段桿部21外周面的上部，該第一攻牙螺紋部23係形成於該本段桿部21外周面的下部，該本段螺紋部22的外徑與該第一攻牙螺紋部23的外徑相同。As shown in FIG. 1 , the screw segment 20 is formed at a bottom end of the screw head 10 and extends downward. The screw segment 20 has a segment rod portion 21 , a segment thread portion 22 and a first attack. The threaded portion 23 is formed on an upper portion of the outer peripheral surface of the rod portion 21 of the present portion, and the first tapping thread portion 23 is formed at a lower portion of the outer peripheral surface of the rod portion 21 of the present portion. The outer diameter of the threaded portion 22 is the same as the outer diameter of the first tapping thread portion 23.
該螺絲末段30係形成於該螺絲本段20的底端並向下延伸，該螺絲末段30包含一末段桿部31、一第二攻牙螺紋部32及一排屑螺紋部33，該末段桿部31形成於該本段桿部21的底端，該第二攻牙螺紋部32形成於該末段桿部31外周面的上部，並連接該第一攻牙螺紋部23，且該第二攻牙螺紋部32的外徑小於該第一攻牙螺紋部23的外徑，該排屑螺紋部33係形成於該末段桿部31之外周面的下部，該螺絲末段30的排屑螺紋部33包含複數道螺紋34，該些螺紋34環繞該末段桿部31，且該些螺紋34環繞該末段桿部31的圈數少於一圈，該排屑螺紋部33的外徑小於該第二攻牙螺紋部32的外徑。The end portion 30 of the screw is formed at a bottom end of the screw portion 20 and extends downward. The end portion 30 of the screw includes a last rod portion 31, a second tapping thread portion 32 and a chip threading portion 33. The end portion of the rod portion 31 is formed at the bottom end of the rod portion 21 of the present portion, and the second tapping thread portion 32 is formed at an upper portion of the outer peripheral surface of the end portion of the rod portion 31 and is coupled to the first tapping thread portion 23, The outer diameter of the second tapping thread portion 32 is smaller than the outer diameter of the first tapping thread portion 23, and the chip threading portion 33 is formed at a lower portion of the outer peripheral surface of the last rod portion 31. The chip threading portion 33 of the 30 includes a plurality of threads 34 that surround the end rod portion 31, and the number of turns of the threads 34 around the end portion rod portion 31 is less than one turn, the chip threading portion The outer diameter of 33 is smaller than the outer diameter of the second tapping thread portion 32.
該鑽尾刀刃40係形成於該螺絲末段30底端之尖形扁平體，該鑽尾刀刃40的寬度小於該第二攻牙螺紋部32的外徑，且該鑽尾刀刃40的寬度大於該排屑螺紋部33的外徑。The tail cutting edge 40 is formed on a pointed flat body at the bottom end of the screw end section 30. The width of the drilling edge 40 is smaller than the outer diameter of the second tapping thread portion 32, and the width of the drilling edge 40 is greater than The outer diameter of the chip threading portion 33.
如圖1至圖3所示，其中該改良型鑽尾螺絲包含一第一排屑溝部35及一第二排屑溝部36，該第一排屑溝部35係螺旋地形成於該第一攻牙螺紋部23及該第二攻牙螺紋部32，該第二排屑溝部36形成於該排屑螺紋部33的螺紋33之間，如圖3、圖4所示，該排屑螺紋部33的每一螺紋34的一側面形成一集削面37，該末段桿部31分別於鄰近該些螺紋34之集削面37處形成一凹部38。As shown in FIG. 1 to FIG. 3, the modified drill screw includes a first chip groove portion 35 and a second chip groove portion 36. The first chip groove portion 35 is spirally formed on the first tapping portion. The threaded portion 23 and the second tapping thread portion 32 are formed between the threads 33 of the chip threading portion 33, as shown in FIGS. 3 and 4, the chip threading portion 33 One side of each thread 34 defines a collecting face 37 which defines a recess 38 adjacent the collecting face 37 of the threads 34, respectively.
如圖2、圖3所示，於本創作之第二種實施例中，該排屑螺紋部33連接該第二攻牙螺紋32，且該第一排屑溝部35連接該第二排屑溝部36。As shown in FIG. 2 and FIG. 3, in the second embodiment of the present invention, the chip threading portion 33 is connected to the second tapping thread 32, and the first chip flute portion 35 is connected to the second chip flute portion. 36.
如圖5所示，該改良型鑽尾螺絲在使用時，使用者可以使用一工具(圖未示)伸入螺絲頭10的凹口以連接該鑽尾螺絲之螺絲頭10，並藉由該工具轉動該鑽尾螺絲，將該改良型鑽尾螺絲之鑽尾刀刃40鑽入工件50中，當鑽入工件50時，該鑽尾刀刃40會在該工件50的表面鑽出一開孔51，且該鑽尾刀刃40所切削出之工件碎屑52會沿著該排屑溝部35向該工件50表面方向排出，如圖5所示，當該改良型鑽尾螺絲的第二攻牙螺紋部32鑽入該工件50內時，該第二攻牙螺紋部32會在該開孔51的內壁面初步切削出螺牙53，接著該第一攻牙螺紋部23會再次切削該螺牙53，使該改良型鑽尾螺絲之本段螺紋部22可以配合該螺牙53，並鎖固於該工件50上。As shown in FIG. 5, when the improved drill screw is used, the user can use a tool (not shown) to extend into the recess of the screw head 10 to connect the screw head 10 of the drill screw, and by using the The tool rotates the drill tail screw, and the drill tail blade 40 of the modified drill tail screw is drilled into the workpiece 50. When the workpiece 50 is drilled, the drill tail 40 will drill an opening 51 in the surface of the workpiece 50. And the workpiece scrap 52 cut by the drill cutting edge 40 is discharged along the chip flute portion 35 toward the surface of the workpiece 50, as shown in FIG. 5, when the second tapping thread of the modified self-drilling screw When the portion 32 is drilled into the workpiece 50, the second tapping thread portion 32 initially cuts the thread 53 on the inner wall surface of the opening 51, and then the first tapping thread portion 23 cuts the thread 53 again. The threaded portion 22 of the modified drill collar screw can be engaged with the screw 53 and locked to the workpiece 50.
其中，由於該排屑螺紋部33的螺紋34環繞該末段桿部31的圈數少於一圈，因此在將該改良型鑽尾螺絲鑽入該工件50時，該些工件碎屑52所行進的路徑長度短，可以快速的排出，且該末段桿部31之凹部38，可增加排屑空間並加強排屑效果。Wherein, since the number of turns of the thread 34 of the chip threading portion 33 around the end rod portion 31 is less than one turn, the workpiece debris 52 is drilled when the modified drill screw is drilled into the workpiece 50. The path length of the travel is short, and can be quickly discharged, and the recess 38 of the end portion of the rod portion 31 can increase the chip evacuation space and enhance the chip evacuation effect.
如圖6所示，當該第二攻牙螺紋部32在該開孔51的內壁面初步切削出螺牙53後，並在該第一攻牙螺紋部23再次切削該螺牙53時，可減少進行攻牙的扭力，可避免攻牙時因扭力過大而造成螺絲斷裂之問題。As shown in FIG. 6 , when the second tapping thread portion 32 initially cuts the thread 53 on the inner wall surface of the opening 51 and cuts the thread 53 again in the first tapping thread portion 23 , Reduce the torque of tapping, which can avoid the problem of screw breakage caused by excessive torque during tapping.
使用者在將該改良型鑽尾螺絲鑽入該工件50時，該攻牙螺紋部23會配合該螺牙53，使該改良型鑽尾螺絲產生一下壓力並作用於該鑽尾刀刃40，可讓使用者在鑽孔時較為省力，且該第一排屑溝部34係螺旋地形成於該第一攻牙螺紋部23及該第二攻牙螺紋部32，可使該改良型鑽尾螺絲之第一攻牙螺紋部23及第二攻牙螺紋部32在進行攻牙的同時，仍可將工件碎屑52排出，因此工件碎屑52不會阻塞於該開孔51內，故使用者在鑽孔時可達到省力的效果。When the user drills the modified drill-tail screw into the workpiece 50, the tapping thread portion 23 cooperates with the thread 53 to cause the modified drill-tail screw to exert a pressure and act on the drill-edge blade 40. The user is more labor-saving during drilling, and the first chip groove portion 34 is spirally formed on the first tapping thread portion 23 and the second tapping thread portion 32, so that the improved drill screw can be The first tapping thread portion 23 and the second tapping thread portion 32 can still remove the workpiece debris 52 while tapping, so that the workpiece debris 52 does not block in the opening 51, so the user A labor-saving effect can be achieved when drilling.
綜上所述，由於該排屑螺紋部33之螺紋34環繞該末段桿部31的圈數少於一圈，減少工件碎屑52行經該末段桿部31的路徑長度，鑽孔時所產生之工件碎屑52可沿著該排屑螺紋部33快速的排出，且該第一攻牙螺紋部23及該第二攻牙螺紋部32可讓使用者在使用該改良型鑽尾螺絲進行鑽孔及攻牙時更加省力，進而提高鑽孔及攻牙的效率。In summary, since the number of turns of the thread 34 of the chip threading portion 33 around the end portion of the rod portion 31 is less than one turn, the path length of the workpiece debris 52 passing through the end portion of the rod portion 31 is reduced. The generated workpiece debris 52 can be quickly discharged along the chip threading portion 33, and the first tapping thread portion 23 and the second tapping thread portion 32 can be used by the user to use the improved drilling screw. Drilling and tapping are more labor-saving, which improves the efficiency of drilling and tapping.
10‧‧‧螺絲頭
20‧‧‧螺絲本段
21‧‧‧本段桿部
22‧‧‧本段螺紋部
23‧‧‧第一攻牙螺紋部
30‧‧‧螺絲末段
31‧‧‧末段桿部
32‧‧‧第二攻牙螺紋部
33‧‧‧排屑螺紋部
34‧‧‧螺紋
35‧‧‧第一排屑溝部
36‧‧‧第二排屑溝部
37‧‧‧集削面
38‧‧‧凹部
40‧‧‧鑽尾刀刃
50‧‧‧工件
51‧‧‧開孔
52‧‧‧工件碎屑
53‧‧‧螺牙10‧‧‧ screw head
20‧‧‧ Screw section
21‧‧‧This section of the pole
22‧‧‧This section of the thread
23‧‧‧The first tapping thread
30‧‧‧End of screw
31‧‧‧End section
32‧‧‧Second tapping thread
33‧‧‧Drawing thread
34‧‧‧ thread
35‧‧‧First chip drain
36‧‧‧Second chip evacuation
37‧‧‧Set noodles
38‧‧‧ recess
40‧‧‧Drilling blade
50‧‧‧Workpiece
51‧‧‧Opening
52‧‧‧Workpiece debris
53‧‧‧ thread
圖1：為本創作改良型鑽尾螺絲之第一種較佳實施例之前視平面示意圖。 圖2：為本創作改良型鑽尾螺絲之第二種較佳實施例之前視平面示意圖。 圖3：為本創作改良型鑽尾螺絲之第二種較佳實施例之側視平面示意圖。 圖4：為圖3之A-A斷面示意圖。 圖5：為本創作改良型鑽尾螺絲之第二種較佳實施例之使用狀態示意圖(一)。 圖6：為本創作改良型鑽尾螺絲之第二種較佳實施例之使用狀態示意圖(二)。Figure 1 is a front plan view showing a first preferred embodiment of the improved drill tail screw. Fig. 2 is a front plan view showing a second preferred embodiment of the improved drill tail screw of the present invention. Figure 3 is a side plan view showing a second preferred embodiment of the improved drill collar screw of the present invention. Figure 4 is a schematic cross-sectional view taken along line A-A of Figure 3. Fig. 5 is a schematic view showing the use state of the second preferred embodiment of the improved drill collar screw of the present invention (1). Fig. 6 is a schematic view showing the state of use of the second preferred embodiment of the improved drill collar screw of the present invention (2).
10‧‧‧螺絲頭 10‧‧‧ screw head
20‧‧‧螺絲本段 20‧‧‧ Screw section
21‧‧‧本段桿部 21‧‧‧This section of the pole
22‧‧‧本段螺紋部 22‧‧‧This section of the thread
23‧‧‧第一攻牙螺紋部 23‧‧‧The first tapping thread
30‧‧‧螺絲末段 30‧‧‧End of screw
31‧‧‧末段桿部 31‧‧‧End section
32‧‧‧第二攻牙螺紋部 32‧‧‧Second tapping thread
33‧‧‧排屑螺紋部 33‧‧‧Drawing thread
34‧‧‧螺紋 34‧‧‧ thread
35‧‧‧第一排屑溝部 35‧‧‧First chip drain
36‧‧‧第二排屑溝部 36‧‧‧Second chip evacuation
40‧‧‧鑽尾刀刃 40‧‧‧Drilling blade
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104220873U TWM519186U (en) | 2015-12-25 | 2015-12-25 | Improved self drilling screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104220873U TWM519186U (en) | 2015-12-25 | 2015-12-25 | Improved self drilling screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM519186U true TWM519186U (en) | 2016-03-21 |
Family
ID=56086667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW104220873U TWM519186U (en) | 2015-12-25 | 2015-12-25 | Improved self drilling screw |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM519186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI618866B (en) * | 2017-01-25 | 2018-03-21 | Zhao ying qing | Drilling screw structure |
-
2015
- 2015-12-25 TW TW104220873U patent/TWM519186U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI618866B (en) * | 2017-01-25 | 2018-03-21 | Zhao ying qing | Drilling screw structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| MM4K | Annulment or lapse of a utility model due to non-payment of fees |