TW202239517A - Spindle driving device and machine tool - Google Patents

Abstract

The spindle driving device includes a base, an axle, two motors, a spindle assembly, and a driving member. The base defines a vertical base plane and includes a first receiving portion and a second receiving portion spacedly arranged along the base plane. The axle is arranged at the first receiving portion and overlaps the base plane. The axle is rotatable with respect to the first rotation axis. The two motors are connected to two ends of the axle respectively to be located at two sides of the base plane for driving axle to rotate around the first rotation axis. The spindle assembly includes a driven portion and two spindles. The driven portion is rotatably arranged at the second receiving portion to be rotatable around the second rotation axis. The two spindles are coaxially disposed on two ends of the driven portion to be located at two sides of the base plane. Each of the spindles is adapted for connecting to tools. The driving member connects the axle and the driven portion therebetween so that the driven portion and the two spindles are driven to rotate around the second rotation axis when the axle rotates around the first rotation axis. Thereby, the weight of the motor can be distributed evenly to prevent the machine tool from deforming due to the motor locating at a single side. Thus, the precision of processing can be improved.

Description

主軸驅動裝置及工具機Spindle drives and machine tools

本發明係有關於一種主軸驅動裝置與具有該主軸驅動裝置之工具機。The invention relates to a spindle driving device and a machine tool with the spindle driving device.

按，研磨機的加工工具機，通常包含承座、馬達、皮帶、砂輪機與研磨片等元件，馬達與砂輪機分別設於承座，研磨片設於砂輪機上，馬達經由皮帶帶動砂輪機轉動，藉以驅動研磨片轉動而進行研磨作業，例如專利M323367所揭者，其承座呈鉛直設置，馬達與砂輪機分別設於承座之鉛直側面，而分別繞水平之轉軸轉動。Press, the processing tool machine of the grinder usually includes components such as a seat, a motor, a belt, a grinder, and a grinding sheet. The motor and the grinder are respectively installed on the seat, and the grinding sheet is installed on the grinder. The motor drives the grinder through the belt. Rotation is used to drive the grinding disc to rotate to carry out the grinding operation. For example, as disclosed in patent M323367, the seat is vertically arranged. The motor and the grinder are respectively arranged on the vertical side of the seat, and they rotate around the horizontal shaft respectively.

然而，上述專利中，馬達與砂輪機皆位於承座之同一側面，也就是說，兩者之重量皆施力於承座之同一側面，會使承座稍稍往前傾斜扭曲，進而導致研磨片產生細微的位移，其位移雖十分微小，但在進行精細加工時，微小的位置差異即會導致加工的誤差，進而影響成品之良率與品質。However, in the above-mentioned patents, the motor and the grinder are located on the same side of the seat, that is to say, the weight of both exerts force on the same side of the seat, which will cause the seat to tilt slightly forward and twist, causing the grinding sheet Subtle displacement occurs. Although the displacement is very small, when performing fine processing, the slight position difference will lead to processing errors, which in turn will affect the yield and quality of the finished product.

此外，為了驅動砂輪機轉動並進行加工，所須使用之馬達需具有相當的馬力，這也導致馬達體積更大、重量更重，對於承座扭曲的影響更為明顯。In addition, in order to drive the grinder to rotate and perform processing, the required motor must have a considerable horsepower, which also results in a larger volume and heavier weight of the motor, which has a more obvious impact on the distortion of the seat.

本發明的其中一項目的即在於提供一種主軸驅動裝置與工具機，能分散馬達重量，避免工具機因馬達重量而扭曲變形，確保加工精度。One of the objects of the present invention is to provide a spindle driving device and a machine tool, which can disperse the weight of the motor, avoid distortion and deformation of the machine tool due to the weight of the motor, and ensure machining accuracy.

基於上述目的，本發明提供一種主軸驅動裝置，包含一基座、一軸部、二驅動馬達、一主軸組與一帶動件。Based on the above purpose, the present invention provides a spindle driving device, which includes a base, a shaft, two driving motors, a spindle assembly and a driving member.

該基座定義一與水平面垂直之基準面，該基座包含一第一容置部與一第二容置部，該第一容置部與該第二容置部沿該基準面間隔設置；該軸部設於該第一容置部而與該基準面重合，該軸部能繞一第一轉軸轉動；該二驅動馬達分別連接至該軸部沿該第一轉軸之相對兩端而分別位於該基準面之相異兩側，該二驅動馬達供驅動該軸部繞該第一轉軸轉動；該主軸組包含一從動部與二主軸，該從動部可繞一第二轉軸轉動地設於該第二容置部，該二主軸分別同軸設於該從動部沿該第二轉軸之相對兩端，使該二主軸分別位於該基準面之相異兩側，各該主軸相對該從動部之一端分別供連接至少一加工工具；該帶動件連接於該軸部與該從動部之間，使該軸部繞該第一轉軸轉動時同時帶動該從動部繞該第二轉軸轉動，藉以進一步帶動該二主軸繞該第二轉軸轉動。The base defines a reference plane perpendicular to the horizontal plane, the base includes a first accommodation portion and a second accommodation portion, the first accommodation portion and the second accommodation portion are arranged at intervals along the reference plane; The shaft part is arranged on the first accommodating part and coincides with the reference plane, and the shaft part can rotate around a first rotating shaft; the two drive motors are connected to the shaft part respectively along the opposite ends of the first rotating shaft. Located on different sides of the reference plane, the two driving motors are used to drive the shaft to rotate around the first shaft; the main shaft group includes a driven part and two main shafts, and the driven part can rotate around a second shaft Located in the second accommodating part, the two main shafts are respectively coaxially arranged at opposite ends of the driven part along the second rotating shaft, so that the two main shafts are respectively located on different sides of the reference plane, and each of the main shafts is opposite to the One end of the driven part is respectively connected to at least one processing tool; the driving part is connected between the shaft part and the driven part, so that when the shaft part rotates around the first rotating shaft, it simultaneously drives the driven part around the second rotating shaft. The rotating shaft rotates to further drive the two main shafts to rotate around the second rotating shaft.

在某些情況下，該軸部係為一聯軸器，該二驅動馬達分別包含一輸出軸，該二輸出軸分別插設於該聯軸器之相對兩端。In some cases, the shaft part is a coupling, and the two driving motors respectively include an output shaft, and the two output shafts are respectively inserted at opposite ends of the coupling.

在某些情況下，該第一容置部與該第二容置部係沿一鉛直方向間隔設置，該第一轉軸與該第二轉軸彼此平行且分別垂直該基準面。In some cases, the first accommodating portion and the second accommodating portion are spaced apart along a vertical direction, the first rotation axis and the second rotation axis are parallel to each other and perpendicular to the reference plane respectively.

在某些情況下，該帶動件係為一皮帶，該皮帶繞於該軸部之外環面與該從動部之外環面；較佳地，該軸部之外徑小於該從動部之外徑。In some cases, the driving part is a belt, and the belt is wound around the outer ring surface of the shaft part and the outer ring surface of the driven part; preferably, the outer diameter of the shaft part is smaller than that of the driven part outside diameter.

本發明並另提供一種工具機，包含一本體與一上述之主軸驅動裝置，其中該本體具有一軌道，該軌道沿一鉛直方向延伸，該基座另包含一滑移部，該滑移部位於該基座之一側面且與該基準面垂直，該基座以該滑移部滑設於該軌道，而能沿該軌道鉛直移動。The present invention also provides a machine tool, which includes a body and the above-mentioned spindle driving device, wherein the body has a track, and the track extends along a vertical direction, and the base further includes a sliding part, and the sliding part is located at One side of the base is perpendicular to the reference plane, and the base is slid on the track by the sliding part, so as to be able to move vertically along the track.

藉此，本發明提供之主軸驅動裝置與包含該作業裝置之工具機能避免馬達重量造成基座受力而扭曲，而可避免主軸之位移，進而確保加工精度。Thereby, the main shaft driving device and the machine tool including the working device provided by the present invention can avoid the base from being twisted due to force caused by the weight of the motor, thereby avoiding the displacement of the main shaft, thereby ensuring the machining accuracy.

請參考圖1至圖4與圖2A，本發明提供一種主軸驅動裝置與包含上述作業裝置之工具機，該主軸驅動裝置包含一基座10、一軸部20、二驅動馬達30、一主軸組40與一帶動件50，該工具機另包含一本體60，該本體60具有一軌道61，該軌道61沿一鉛直方向延伸。Please refer to FIG. 1 to FIG. 4 and FIG. 2A, the present invention provides a spindle driving device and a machine tool including the above operating device, the spindle driving device includes a base 10, a shaft portion 20, two drive motors 30, and a spindle group 40 Along with a driving member 50 , the machine tool further includes a body 60 having a rail 61 extending along a vertical direction.

該基座10定義一與水平面垂直之基準面P並包含一第一容置部11與一第二容置部12，該第一容置部11與該第二容置部12沿該基準面P間隔設置，較佳地，該第一容置部11與該第二容置部12係沿該鉛直方向間隔設置；於本實施例中該第一容置部11與該第二容置部12分別為水平貫穿之空間；此外，該基座10另包含一滑移部13，該滑移部13位於該基座10相對該第一容置部11與該第二容置部12之一側面且與該基準面P垂直，該基座10以該滑移部13滑設於該軌道61，而能沿該軌道61鉛直移動。The base 10 defines a reference plane P perpendicular to the horizontal plane and includes a first accommodating portion 11 and a second accommodating portion 12, the first accommodating portion 11 and the second accommodating portion 12 are arranged along the reference plane P is arranged at intervals, preferably, the first accommodating portion 11 and the second accommodating portion 12 are arranged at intervals along the vertical direction; in this embodiment, the first accommodating portion 11 and the second accommodating portion 12 are respectively horizontally penetrating spaces; in addition, the base 10 further includes a sliding portion 13, the sliding portion 13 is located on one of the first accommodating portion 11 and the second accommodating portion 12 opposite to the base 10 Sideways and perpendicular to the reference plane P, the base 10 is slid on the rail 61 by the sliding portion 13 , and can move vertically along the rail 61 .

該軸部20設於該第一容置部11而與該基準面P重合，該軸部20能繞一第一轉軸A1轉動；該二驅動馬達30分別連接至該軸部20沿該第一轉軸A1之相對兩端而分別位於該基準面P之相異兩側，該二驅動馬達30供驅動該軸部20繞該第一轉軸A1轉動。於本實施例中，該軸部20係為一聯軸器，該二驅動馬達30分別包含一輸出軸31，該二輸出軸31分別插設於該聯軸器之相對兩端，藉以使該二輸出軸31之轉動速度同步。The shaft part 20 is arranged on the first accommodating part 11 to coincide with the reference plane P, and the shaft part 20 can rotate around a first rotation axis A1; the two drive motors 30 are respectively connected to the shaft part 20 along the first The opposite ends of the rotating shaft A1 are respectively located on different sides of the reference plane P, and the two driving motors 30 are used to drive the shaft portion 20 to rotate around the first rotating shaft A1. In this embodiment, the shaft portion 20 is a coupling, and the two drive motors 30 respectively include an output shaft 31, and the two output shafts 31 are respectively inserted at opposite ends of the coupling, so that the The rotational speeds of the two output shafts 31 are synchronized.

該主軸組40包含一從動部41與二主軸42，該從動部41可繞一第二轉軸A2轉動地設於該第二容置部12，該二主軸42分別同軸設於該從動部41沿該第二轉軸A2之相對兩端，使該二主軸42分別位於該基準面P之相異兩側，各該主軸42相對該從動部41之一端分別供連接至少一加工工具，例如研磨片等；該帶動件50連接於該軸部20與該從動部41之間，使該軸部20繞該第一轉軸A1轉動時同時帶動該從動部41繞該第二轉軸A2轉動，藉以進一步帶動該二主軸42繞該第二轉軸A2轉動。於本實施例中，該帶動件50係為一皮帶，該皮帶繞於該軸部20之外環面與該從動部41之外環面，較佳地，該軸部20之外徑小於該從動部41之外徑，藉以達到減速效果；此外，較佳地，該第一轉軸A1與該第二轉軸A2彼此平行且分別垂直該基準面P。The main shaft assembly 40 includes a driven part 41 and two main shafts 42. The driven part 41 is rotatably arranged on the second accommodating part 12 around a second rotation axis A2. The two main shafts 42 are coaxially arranged on the driven part 42 respectively. part 41 along the opposite ends of the second rotating shaft A2, so that the two main shafts 42 are respectively located on different sides of the reference plane P, and the ends of the main shafts 42 opposite to the driven part 41 are respectively connected to at least one processing tool, For example, grinding sheets, etc.; the driving member 50 is connected between the shaft portion 20 and the driven portion 41, so that the shaft portion 20 drives the driven portion 41 around the second shaft A2 while rotating around the first shaft A1 Rotation, so as to further drive the two main shafts 42 to rotate around the second rotation axis A2. In this embodiment, the driving member 50 is a belt, and the belt is wound around the outer ring surface of the shaft portion 20 and the outer ring surface of the driven portion 41. Preferably, the outer diameter of the shaft portion 20 is less than The outer diameter of the driven portion 41 is used to achieve a deceleration effect; in addition, preferably, the first rotation axis A1 and the second rotation axis A2 are parallel to each other and perpendicular to the reference plane P respectively.

實際使用時，該二驅動馬達30能經由該軸部20、該帶動件50與該從動部41帶動該二主軸42轉動，搭配該基座10沿該工具機之軌道61升降，可對置於該二主軸42下方之工件進行加工，例如研磨加工，而由於該二驅動馬達20分別設於基座10中央之基準面P兩側，重量分配平均，因此，基座10或軌道61不會往左或往右傾斜或扭曲，故可維持該二主軸42之位置精確，以確保加工精密度。In actual use, the two driving motors 30 can drive the two main shafts 42 to rotate through the shaft portion 20, the driving member 50 and the driven portion 41, and cooperate with the base 10 to move up and down along the track 61 of the machine tool, and can be opposed to each other. The workpiece below the two spindles 42 is processed, such as grinding, and because the two driving motors 20 are respectively arranged on both sides of the reference plane P in the center of the base 10, the weight distribution is even, so the base 10 or the track 61 will not Tilting or twisting to the left or right, the precise positions of the two spindles 42 can be maintained to ensure machining precision.

綜上所述，本發明提供之主軸驅動裝置及包含該作業裝置之工具機能避免馬達重量造成承座扭曲變形，進而能避免主軸位移、加工精密度下降，維持加工成品之品質，此外，由於具有二驅動馬達，各驅動馬達之所需馬力下降，可使驅動馬達體積縮小，節省空間，並可降低基座之負擔，實為相關業者所企盼，惟以上實施例僅在於說明並闡述本發明的技術內容，本專利的專利範圍應以後述的申請專利範圍為準。To sum up, the spindle driving device and the machine tool including the operating device provided by the present invention can avoid the distortion and deformation of the seat caused by the weight of the motor, thereby avoiding the displacement of the spindle and the decrease in processing precision, and maintaining the quality of the finished product. In addition, due to the Two driving motors, the required horsepower of each driving motor is reduced, the size of the driving motor can be reduced, the space can be saved, and the burden on the base can be reduced, which is really expected by the relevant industry, but the above embodiments are only to illustrate and illustrate the present invention. Technical content, the patent scope of this patent shall prevail in the patent scope of the application mentioned later.

10:基座 11:第一容置部 12:第二容置部 13:滑移部 20:軸部 30:驅動馬達 31:輸出軸 40:主軸組 41:從動部 42:主軸 50:帶動件 60:本體 61:軌道 A1:第一轉軸 A2:第二轉軸 P:基準面 10: base 11: The first accommodation part 12: The second storage part 13: Sliding part 20: Shaft 30: Drive motor 31: output shaft 40: Spindle group 41: driven part 42:Spindle 50: driving parts 60: Ontology 61: track A1: The first shaft A2: Second shaft P: reference plane

圖1為本發明之立體圖。 圖2為本發明之立體分解圖。 圖2A為本發明之部分立體圖。 圖3為本發明之部分剖面圖。 圖4為本發明另一角度之剖面圖。 Fig. 1 is a perspective view of the present invention. Fig. 2 is a three-dimensional exploded view of the present invention. Fig. 2A is a partial perspective view of the present invention. Fig. 3 is a partial sectional view of the present invention. Fig. 4 is a sectional view of another angle of the present invention.

10:基座 10: Base

11:第一容置部 11: The first accommodation part

12:第二容置部 12: The second storage part

13:滑設部 13:Sliding department

30:驅動馬達 30: Drive motor

40:主軸組 40: Spindle group

42:主軸 42:Spindle

60:本體 60: Ontology

61:軌道 61: track

Claims (7)

一種主軸驅動裝置，包含： 一基座，定義一與水平面垂直之基準面，該基座包含一第一容置部與一第二容置部，該第一容置部與該第二容置部沿該基準面間隔設置； 一軸部，設於該第一容置部而與該基準面重合，該軸部能繞一第一轉軸轉動； 二驅動馬達，分別連接至該軸部沿該第一轉軸之相對兩端而分別位於該基準面之相異兩側，該二驅動馬達供驅動該軸部繞該第一轉軸轉動； 一主軸組，包含一從動部與二主軸，該從動部可繞一第二轉軸轉動地設於該第二容置部，該二主軸分別同軸設於該從動部沿該第二轉軸之相對兩端，使該二主軸分別位於該基準面之相異兩側，各該主軸相對該從動部之一端分別供連接至少一加工工具； 一帶動件，連接於該軸部與該從動部之間，使該軸部繞該第一轉軸轉動時同時帶動該從動部繞該第二轉軸轉動，藉以進一步帶動該二主軸繞該第二轉軸轉動。 A spindle drive device comprising: A base, defining a reference plane perpendicular to the horizontal plane, the base includes a first accommodating portion and a second accommodating portion, the first accommodating portion and the second accommodating portion are arranged at intervals along the reference plane ; A shaft part is arranged on the first accommodating part and coincides with the reference plane, and the shaft part can rotate around a first rotating shaft; Two driving motors are respectively connected to opposite ends of the shaft portion along the first rotating shaft and are respectively located on different sides of the reference plane, the two driving motors are used to drive the shaft portion to rotate around the first rotating shaft; A main shaft group, including a driven part and two main shafts, the driven part is rotatably arranged on the second accommodating part around a second rotating shaft, and the two main shafts are coaxially arranged on the driven part along the second rotating shaft The two opposite ends of the main shaft are respectively located on different sides of the reference plane, and the end of each main shaft opposite to the driven part is respectively connected to at least one processing tool; A driving part is connected between the shaft part and the driven part, so that when the shaft part rotates around the first rotating shaft, it simultaneously drives the driven part to rotate around the second rotating shaft, so as to further drive the two main shafts around the second rotating shaft The two shafts rotate. 如請求項1所述之主軸驅動裝置，其中軸部係為一聯軸器，該二驅動馬達分別包含一輸出軸，該二輸出軸分別插設於該聯軸器之相對兩端。The spindle driving device as described in claim 1, wherein the shaft part is a coupling, and the two driving motors respectively include an output shaft, and the two output shafts are respectively inserted at opposite ends of the coupling. 如請求項1所述之主軸驅動裝置，其中該第一容置部與該第二容置部係沿一鉛直方向間隔設置。The spindle driving device according to claim 1, wherein the first accommodating portion and the second accommodating portion are spaced apart along a vertical direction. 如請求項1所述之主軸驅動裝置，其中該帶動件係為一皮帶，該皮帶繞於該軸部之外環面與該從動部之外環面。The main shaft driving device according to claim 1, wherein the driving member is a belt, and the belt is wound around the outer ring surface of the shaft portion and the outer ring surface of the driven portion. 如請求項1所述之主軸驅動裝置，其中該軸部之外徑小於該從動部之外徑。The spindle driving device as claimed in claim 1, wherein the outer diameter of the shaft portion is smaller than the outer diameter of the driven portion. 如請求項1所述之主軸驅動裝置，其中該第一轉軸與該第二轉軸彼此平行且分別垂直該基準面。The spindle driving device as claimed in claim 1, wherein the first rotation axis and the second rotation axis are parallel to each other and perpendicular to the reference plane. 一種工具機，包含： 一本體，具有一軌道，該軌道沿一鉛直方向延伸； 一如請求項1至6中任一項所述之主軸驅動裝置，該基座另包含一滑移部，該滑移部位於該基座之一側面且與該基準面垂直，該基座以該滑移部滑設於該軌道，而能沿該軌道鉛直移動。 A machine tool comprising: a body with a track extending along a vertical direction; A spindle driving device as described in any one of Claims 1 to 6, the base further includes a sliding part, the sliding part is located on one side of the base and is perpendicular to the reference plane, and the base is The sliding part is slid on the track and can vertically move along the track.

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