TWI555923B - High pressure rigid linear ball slide - Google Patents
High pressure rigid linear ball slide Download PDFInfo
- Publication number
- TWI555923B TWI555923B TW103130355A TW103130355A TWI555923B TW I555923 B TWI555923 B TW I555923B TW 103130355 A TW103130355 A TW 103130355A TW 103130355 A TW103130355 A TW 103130355A TW I555923 B TWI555923 B TW I555923B
- Authority
- TW
- Taiwan
- Prior art keywords
- ball
- width
- rolling groove
- rolling grooves
- balls
- Prior art date
Links
Landscapes
- Bearings For Parts Moving Linearly (AREA)
Description
本發明與一種線性傳動裝置有關，尤其是和高下壓剛性線性傳動裝置有關。 The present invention relates to a linear actuator, and more particularly to a high downforce rigid linear actuator.
線性滾珠滑軌為一種重要的線性傳動裝置，具備高效率及高精密度的傳動特性使其被廣泛地運用於各種運載機械上，在選用線性滾珠滑軌的考量重點之一為其所能承受之靜額定負荷及剛性，尤其是下壓方向的靜額定負荷及剛性特別重要，而一般線性滾珠滑軌所能承受的靜額定負荷數值與滾珠列數及滾珠直徑的平方成正相關關係，因此業界多以增加滾珠直徑或增加滾珠列數之手段提高靜額定負荷能力；但是，一般的線性滾珠滑軌由於設計上未特別加強下壓方向的靜額定負荷及剛性，其下壓方向的靜額定負荷及剛性普遍較低。 Linear ball slides are an important linear actuator with high efficiency and high precision transmission characteristics, which make them widely used in a variety of carrier machinery. One of the key considerations in the selection of linear ball slides is their ability to withstand them. Static load rating and rigidity, especially static load rating and rigidity in the down direction are particularly important, and the static load rating that can be withstood by a typical linear ball slide is positively related to the number of balls and the square of the ball diameter. The static load rating capability is increased by increasing the ball diameter or increasing the number of ball rows. However, the general linear ball bearing rail is designed to have no static load rating and rigidity in the down direction, and the static load rating in the down direction is And the rigidity is generally low.
如圖1所示為美國US6132093號專利之線性滑軌10，此為一種加強其下壓方向的靜額定負荷及剛性之習用技術，其主要包含一滑塊11可滑移地套覆於一滑軌12，且該滑軌12與該滑塊11之間設置四列滾珠13，該線性滑軌10主要是將滾珠13列數由一般的兩列增加為四列，其中兩列位於滑軌12的頂面，另外兩列則分別位於滑軌12的兩側，透過增加滾珠13列數以提高線性滑軌10所能承受的靜額定負荷；然而，以該線性滑軌10的四 列滾珠13之配置方式來看，位於滑軌12頂面的兩列滾珠13是完全只能承受下壓之負荷，而且也完全無法承受側向負荷，而位於兩側之兩列滾珠則完全只能承受側向負荷，完全不能承受下壓之負荷，總體來說並無法整體顯著提高其下壓及側向之負荷能力，其雖能局部提昇下壓方向之負荷能力，但是在側向之負荷能力並不佳，因此負荷能力仍不足以適用多數機構，且更由於該滑軌12頂面及側面均設置有供滾珠13容置之滾動溝，因此該滑軌12於加工生產時必須經過一次上方研磨及一次側向研磨才能完成，兩次的加工工序將大幅提高加工成本並同時降低生產效率，而有經濟效益不佳之缺失；而且兩次的加工工序的加工基準不同，使頂面及側面之滾動溝相對位置具有誤差，而降低滾珠滑軌的精準度；另外，則再請配合參閱圖2所示為美國US8414190號專利之線性滑軌20，該線性滑軌20同樣包含一滑塊21可滑移地套覆於一滑軌22，而該線性滑軌20更將滾珠23列數由一般的兩列增加為八列(該滑軌22的兩側分別設置四列)，然其滑軌22上滾動溝的配置除了其中四列位於滑軌22之頂面之外，另外四列位於滑軌22之側面，且該滑軌的相對兩側面又成為向底面相對靠近之傾斜態樣，如此也同樣導致該滑軌22生產時必須經過一次上方研磨及一次側向研磨的多工序加工，而同樣具有加工成本高、生產效率低、經濟效益不佳及精準度降低之缺失；而此線性滑軌20由於設計成八列滾珠的型式，尺寸需大幅增加，無法符合一般的使用需求。 FIG. 1 is a linear slide rail 10 of US Pat. No. 6,132,093, which is a conventional technique for enhancing the static load rating and rigidity of the downward pressing direction, and mainly includes a slider 11 slidably covering a slip A rail 12 is disposed between the slide rail 12 and the slider 11 , and the linear slide rail 10 is mainly used to increase the number of rows of the balls 13 from two columns to four columns, two of which are located on the slide rail 12 . The top surface, the other two columns are respectively located on both sides of the slide rail 12, and the number of balls 13 is increased to increase the static load rating that the linear slide rail 10 can bear; however, the four of the linear slide rails 10 According to the arrangement of the rows of balls 13, the two rows of balls 13 on the top surface of the slide rail 12 can only bear the load of pressing down, and can not bear the lateral load at all, and the two rows of balls on both sides are completely only Can bear the lateral load, can not bear the load of the downforce at all, and generally can not significantly improve its down-pressure and lateral load capacity as a whole, although it can partially increase the load capacity in the down-pressure direction, but the lateral load The capacity is not good, so the load capacity is still insufficient to apply to most of the mechanisms, and since the top surface and the side surface of the slide rail 12 are provided with rolling grooves for the balls 13 to be accommodated, the slide rails 12 must be passed once during processing. The upper grinding and one side grinding can be completed. The two processing steps will greatly increase the processing cost and at the same time reduce the production efficiency, and the lack of economic efficiency; and the processing benchmarks of the two processing steps are different, so that the top surface and the side surface The relative position of the rolling groove has an error, and the accuracy of the ball slide is reduced. In addition, please refer to the linear slide 20 of US Pat. The linear slide rail 20 also includes a slider 21 slidably sleeved on a slide rail 22, and the linear slide rail 20 further increases the number of rows of balls 23 from two columns to eight columns (the slide rail 22 Four rows are respectively arranged on both sides, but the arrangement of the rolling grooves on the sliding rail 22 is except that four of the columns are located on the top surface of the sliding rail 22, and the other four columns are located on the side of the sliding rail 22, and the opposite sides of the sliding rail In addition, it is inclined to the bottom surface, which also causes the slide rail 22 to be subjected to a multi-step process of upper grinding and primary side grinding, and has the advantages of high processing cost, low production efficiency, and low economic efficiency. The lack of precision and accuracy is reduced. Because of the design of the eight rows of balls, the linear slide 20 needs to be greatly increased in size and cannot meet the general needs of use.
有鑑於此，本發明人潛心研究並更深入構思，歷經多次研發試作後，終於發明出一種高下壓剛性線性滾珠滑軌。 In view of this, the inventors have painstakingly studied and further conceived, and after many trials and developments, finally invented a high-pressure rigid linear ball slide.
本發明提供一種高下壓剛性線性滾珠滑軌，其主要目的是提 高整體的靜額定負荷；並改善一般滾珠滑軌為提高負荷能力之結構形態配置會增加加工工序，降低生產效率之缺失，及避免兩次加工工序的加工基準不同所導致之滾動溝相對位置誤差而降低滾珠滑軌的精準度的問題；並能提高線性滾珠滑軌之剛性，特別是高下壓剛性；此外，能不增加尺寸，以符合一般的使用需求。 The invention provides a high-pressure rigid linear ball slide rail, the main purpose of which is to provide High overall static load rating; and improved general ball bearing slides to increase the load capacity of the structural configuration will increase the processing process, reduce the lack of production efficiency, and avoid the relative position error of the rolling groove caused by the different processing benchmarks of the two processing steps The problem of reducing the accuracy of the ball slide rails; and improving the rigidity of the linear ball slide rails, especially the high down-pressure rigidity; in addition, the size can be increased to meet the general use requirements.
為達前述目的，本發明提供一種高下壓剛性線性滾珠滑軌， 包含：一滑軌，沿一X方向延伸長度之長條塊體結構，而垂直該X方向則定義一Y方向及一Z方向，且該Y方向與該Z方向垂直，且該滑軌由該X方向上的兩端端面來看，該滑軌整體係相對於一對稱軸對稱設置之結構體；且該滑軌於該Z方向上依序區分為一頭部、一頸部及一底部，該頭部相較於該底部於該Z方向上為上方向，而該底部相較於該頭部於該Z方向上為下方向，該頭部於該Y方向上的最大寬度為一頭部寬度，該頸部於該Y方向上的最小寬度為一頸部寬度，而該底部於該Y方向上的最大寬度為一底部寬度，該頸部寬度小於該頭部寬度及該底部寬度；且該滑軌上於對稱軸兩側分別設置三個滾動溝；一滑塊，具有一套槽，該滑塊以該套槽可滑移地穿套於該滑軌上，且該套槽上對應各該滾動溝的位置設置六個滾動槽；複數滾珠，可滾動地容置於各該滾動溝與該滾動槽之間，其特徵在於：該滑軌於該頭部上的對稱軸兩側分別設置一上滾動溝、一中 滾動溝以及一下滾動溝，且各該上滾動溝於該滑軌的該Z方向位置高於各該中滾動溝於該滑軌的該Z方向位置；且各該中滾動溝於該滑軌的該Z方向位置高於各該下滾動溝於該滑軌的該Z方向位置；以及各該滾珠與各該滾動溝分別產生一接觸點，該接觸點具有一法線，各該上滾動溝、各該中滾動溝之該法線與Z方向之上方向之間的夾角(定義為該上滾動溝及該中滾動溝之一接觸角)為20~70度，且各該下滾動溝之該法線與Z方向之下方向之間的夾角(定義為各該下滾動溝之一接觸角)為20~70度本發明透過於滑軌及滑塊之間設置六列滾珠以提高整體的靜額定負荷，同時搭配頸部寬度的適當配置以維持滑軌的剛性，特別是高下壓剛性，且本發明容置滾珠的滾動溝是對稱設置於滑軌的頭部兩側，而能透過側向加工一次研磨加工完成，簡化加工工序、提高生產效率及經濟效益，並且避免兩次加工工序的加工基準不同所導致之頂面及側面之滾動溝相對具有誤差而降低滾珠滑軌的精準度的問題。此外，由於空間的設計及最佳化設計，使尺寸不需增加而能符合一般的使用需求。 To achieve the foregoing objective, the present invention provides a high-pressure rigid linear ball slide. The utility model comprises: a slide rail, a long block structure extending in a length of an X direction, and a vertical direction of the X direction defines a Y direction and a Z direction, and the Y direction is perpendicular to the Z direction, and the slide rail is The slide rails are integrally arranged symmetrically with respect to an axis of symmetry in view of the end faces of the two ends in the X direction; and the slide rails are sequentially divided into a head, a neck and a bottom in the Z direction. The head is upperward than the bottom in the Z direction, and the bottom is lower than the head in the Z direction, and the maximum width of the head in the Y direction is a head a width, a minimum width of the neck in the Y direction is a neck width, and a maximum width of the bottom in the Y direction is a bottom width, the neck width being less than the head width and the bottom width; The sliding rails are respectively provided with three rolling grooves on both sides of the symmetry axis; a slider has a set of slots, and the sliding sleeve is slidably sleeved on the sliding rails, and the sleeves corresponding to the sleeves Each of the rolling grooves is provided with six rolling grooves; a plurality of balls are rollably accommodated in each of the rolling grooves and the rolling Between the grooves, the slide rails are respectively provided with an upper rolling groove and a middle on both sides of the symmetry axis of the head. a rolling groove and a lower rolling groove, wherein the Z-direction position of each of the upper rolling grooves in the Z-direction is higher than the Z-direction position of each of the rolling grooves in the sliding rail; and each of the rolling grooves is in the sliding rail The Z-direction position is higher than the Z-direction position of each of the lower rolling grooves in the sliding rail; and each of the balls and the respective rolling grooves respectively generate a contact point having a normal line, each of the upper rolling grooves, An angle between the normal line of each of the middle rolling grooves and a direction above the Z direction (defined as a contact angle of the upper rolling groove and the middle rolling groove) is 20 to 70 degrees, and each of the lower rolling grooves The angle between the normal line and the direction below the Z direction (defined as one contact angle of each of the lower rolling grooves) is 20 to 70 degrees. The present invention provides six rows of balls between the slide rail and the slider to improve the overall static. The rated load is matched with the proper configuration of the width of the neck to maintain the rigidity of the slide rail, especially the high compression rigidity, and the rolling groove of the accommodating ball of the present invention is symmetrically disposed on both sides of the head of the slide rail, and the permeable side Finishing the grinding process once, simplifying the machining process, improving production efficiency and economic efficiency Rolling groove of the top surface and side surfaces, and two different processing steps to avoid processing the reference resulting from reduced accuracy problems with the ball slide relative error. In addition, due to the design of the space and the optimized design, the size can be adjusted to meet the general needs of the use without increasing the size.
《習知技術》 "Knowledge Technology"
10‧‧‧線性滑軌 10‧‧‧Linear slides
11‧‧‧滑塊 11‧‧‧ Slider
12‧‧‧滑軌 12‧‧‧Slide rails
13‧‧‧滾珠 13‧‧‧ balls
20‧‧‧線性滑軌 20‧‧‧Linear slides
21‧‧‧滑塊 21‧‧‧ Slider
22‧‧‧滑軌 22‧‧‧Slide rails
23‧‧‧滾珠 23‧‧‧ balls
《本發明》 "this invention"
30‧‧‧滑軌 30‧‧‧Slide rails
31‧‧‧頭部 31‧‧‧ head
311‧‧‧上滾動溝 311‧‧‧Upper rolling groove
312‧‧‧中滾動溝 312‧‧ ‧ rolling groove
313‧‧‧下滾動溝 313‧‧‧ under the rolling groove
32‧‧‧頸部 32‧‧‧ neck
33‧‧‧底部 33‧‧‧ bottom
40‧‧‧滑塊 40‧‧‧ Slider
41‧‧‧套槽 41‧‧‧ sets of slots
411‧‧‧滾動槽 411‧‧‧ rolling groove
50‧‧‧滾珠 50‧‧‧ balls
X‧‧‧方向 X‧‧‧ direction
Y‧‧‧方向 Y‧‧‧ direction
Z‧‧‧方向 Z‧‧‧ direction
W1‧‧‧頭部寬度 W1‧‧‧ head width
W2‧‧‧頸部寬度 W2‧‧‧ neck width
W3‧‧‧底部寬度 W3‧‧‧ bottom width
L‧‧‧對稱軸 L‧‧‧ axis of symmetry
d1‧‧‧第一滾珠中心距 D1‧‧‧first ball center distance
d2‧‧‧第二滾珠中心距 D2‧‧‧second ball center distance
d3‧‧‧第三滾珠中心距 D3‧‧‧ third ball center distance
T‧‧‧接觸點 T‧‧‧ touch points
α‧‧‧接觸角 ‧‧‧‧contact angle
N‧‧‧法線 N‧‧‧ normal
A‧‧‧側研磨件 A‧‧‧ side grinding parts
圖1 為一種習知的加強下壓滾珠滑軌示意圖。 Figure 1 is a schematic view of a conventional reinforced ball bearing slide.
圖2 為另一種習知的加強其下壓滾珠滑軌示意圖。 Figure 2 is a schematic view of another conventional reinforced ball slide.
圖3 為本發明高下壓剛性線性滾珠滑軌的外觀示意圖。 3 is a schematic view showing the appearance of a high-pressure rigid linear ball slide of the present invention.
圖4 為本發明高下壓剛性線性滾珠滑軌的端視平面圖。 4 is a top plan view of a high depression rigid linear ball slide of the present invention.
圖5 為本發明高下壓剛性線性滾珠滑軌之滑軌平面示意圖。 FIG. 5 is a schematic plan view of a slide rail of a high-pressure rigid linear ball slide according to the present invention.
圖6 為加工本發明高下壓剛性線性滾珠滑軌的滑軌之示意圖。 Fig. 6 is a schematic view showing the slide rail of the high-pressure rigid linear ball slide of the present invention.
圖7 為本發明高下壓剛性線性滾珠滑軌與習用產品的靜額定負荷數據比較圖。 Fig. 7 is a comparison diagram of static rated load data of a high-pressure rigid linear ball slide and a conventional product according to the present invention.
圖8 為本發明高下壓剛性線性滾珠滑軌與習用產品的下壓及側向剛性數據比較圖。 Fig. 8 is a comparison diagram of the down-pressure and lateral rigidity data of the high-pressure rigid linear ball slide and the conventional product of the present invention.
圖9 為本發明高下壓剛性線性滾珠滑軌改變接觸角對於下壓及側向靜額定負荷的關係圖。 Figure 9 is a graph showing the relationship between the contact angle of the high-pressure rigid linear ball slide and the lateral static load rating of the high-pressure rigid linear ball slide.
為使貴審查委員對本發明之目的、特徵及功效能夠有更進一步之瞭解與認識，以下茲請配合【圖式簡單說明】詳述如後：本發明高下壓剛性線性滾珠滑軌的較佳實施例如圖3至9所示，包含：一滑軌30，沿一X方向延伸長度之長條塊體結構，而垂直該X方向則定義一Y方向及一Z方向，且該Y方向與該Z方向垂直，且該滑軌30由該X方向上的兩端端面來看，該滑軌30整體係相對於一對稱軸L對稱設置之結構體；且該滑軌30於該Z方向上依序區分為一頭部31、一頸部32及一底部33，該頭部31相較於該底部33於該Z方向上為上方向，而該底部33相較於該頭部31於該Z方向上為下方向，該頭部31於該Y方向上的最大寬度為一頭部寬度W1，該頸部32於該Y方向上的最小寬度為一頸部寬度W2，而該底部33於該Y方向上的最大寬度為一底部寬度W3，該頸部寬度W2小於該頭部寬度W1及該底部寬度W3；此外，該滑軌30上於對稱軸L兩側分別設置三 個滾動溝，該滑軌30兩側的滾動溝相對於該對稱軸L為對稱設置；本實施例是於該滑軌30的該頭部31上於該對稱軸L兩側分別設置一上滾動溝311、一中滾動溝312以及一下滾動溝313，且各該上滾動溝311於該滑軌30的Z方向位置高於各該中滾動溝312於該滑軌30的Z方向位置；且各該中滾動溝312於該滑軌30的Z方向位置高於各該下滾動溝313於該滑軌30的Z方向位置；且本發明之各該上滾動溝311及各該中滾動溝312設於該頭部31的上半部，而各該下滾動溝313設於頭部31的下半部；一滑塊40，具有一套槽41，該滑塊40以該套槽41可滑移地穿套於該滑軌30上，且該套槽41上對應各該上滾動溝311、各該中滾動溝312及各該下滾動溝313的位置設置六個滾動槽411；以及複數滾珠50，可滾動地容置於各該滾動溝411與該滾動槽311、312、313之間，且當各該滾珠50容置於各該滾動溝311、312、313內時，容置於二該上滾動溝311內的二該滾珠50之中心於該Y方向上的間距為一第一滾珠中心距d1；容置於二該中滾動溝312內的二該滾珠50之中心於該Y方向上的間距為一第二滾珠中心距d2；而容置於二該下滾動溝313內的二該滾珠50之中心於該Y方向上的間距為一第三滾珠中心距d3；該頸部寬度W2分別小於該第二滾珠中心距d2及該第三滾珠中心距d3，以符合結構設計的需要；且，由於高下壓剛性線性滾珠滑軌的剛性和其截面積有關，而頸部32為該滑軌30的截面積最小的區域，為影響結構剛性很重要的區域，為增加線性滾珠滑軌的剛性，本實施例設計該頸部寬度W2大於該第一滾珠中心距d1，以得到最佳的剛性結果；當然，如果結構上有特別的空間限制，設計使該頸部寬度W2大於該第一滾珠中心距d1減掉一個該滾珠50的直徑之數值 也可得到次佳的剛性結果；其中，該第三滾珠中心距d3以稍大設計為更佳，以避免下滾動溝313和頸部32產生製造上的干擾，故設計上，可加大第三滾珠中心距d3並使該頸部寬度W2小於該第三滾珠中心距d3減掉一個該滾珠的直徑之數值為更佳。 In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and effects of the present invention, the following is a detailed description of the following: a preferred embodiment of the high-pressure rigid linear ball slide of the present invention. The embodiment includes, as shown in FIGS. 3 to 9 , a slide rail 30 having a length of a block structure extending in an X direction, and a vertical direction defining a Y direction and a Z direction, and the Y direction and the The Z direction is vertical, and the slide rail 30 is viewed from the end faces of the X direction. The slide rail 30 is a structure symmetrically disposed with respect to an axis of symmetry L; and the slide rail 30 is in the Z direction. The order is divided into a head 31, a neck 32 and a bottom 33. The head 31 is upward in the Z direction compared to the bottom 33, and the bottom 33 is compared to the head 31 in the Z In the downward direction, the maximum width of the head 31 in the Y direction is a head width W1, and the minimum width of the neck 32 in the Y direction is a neck width W2, and the bottom 33 is The maximum width in the Y direction is a bottom width W3, the neck width W2 is smaller than the head width W1 and the bottom width W3; In addition, the slide rail 30 is provided on three sides of the axis of symmetry L, respectively The rolling groove on both sides of the sliding rail 30 is symmetrically disposed with respect to the symmetry axis L. In this embodiment, an upper scroll is respectively disposed on the head 31 of the sliding rail 30 on both sides of the symmetry axis L. a groove 311, a middle rolling groove 312 and a lower rolling groove 313, and each of the upper rolling grooves 311 is positioned higher than the middle rolling groove 312 in the Z direction of the sliding rail 30 in the Z direction of the sliding rail 30; The position of the middle rolling groove 312 in the Z direction of the sliding rail 30 is higher than the position of each of the lower rolling grooves 313 in the Z direction of the sliding rail 30; and the upper rolling groove 311 and each of the middle rolling grooves 312 of the present invention are provided. In the upper half of the head 31, each of the lower rolling grooves 313 is disposed in the lower half of the head 31; a slider 40 has a set of slots 41, and the slider 40 is slidable by the sleeve 41 The ground rail is sleeved on the sliding rail 30, and six rolling grooves 411 are disposed on the sleeve groove 41 corresponding to the positions of the upper rolling groove 311, the middle rolling groove 312 and each of the lower rolling grooves 313; and the plurality of balls 50 a rolling space between each of the rolling grooves 411 and the rolling grooves 311, 312, 313, and when each of the balls 50 is received in each of the rolling grooves 311, 312, 313 The center of the two balls 50 disposed in the upper rolling groove 311 is spaced apart from the center in the Y direction by a first ball center distance d1; the center of the two balls 50 accommodated in the middle rolling groove 312 is The pitch in the Y direction is a second ball center distance d2; and the distance between the centers of the two balls 50 accommodated in the lower rolling groove 313 in the Y direction is a third ball center distance d3; The width W2 of the neck is smaller than the center distance d2 of the second ball and the center distance d3 of the third ball, respectively, to meet the needs of structural design; and, because the rigidity of the high-pressure rigid linear ball slide is related to the cross-sectional area thereof, The portion 32 is the region where the cross-sectional area of the slide rail 30 is the smallest, and is an important area for influencing the structural rigidity. To increase the rigidity of the linear ball slide rail, the neck width W2 is designed to be larger than the first ball center distance d1 in this embodiment. For the best rigidity results; of course, if there is a special space limitation on the structure, the design is such that the neck width W2 is greater than the first ball center distance d1 minus the diameter of one of the balls 50. Sub-optimal rigid results are also obtained; wherein the third ball center distance d3 is preferably designed to be slightly larger to avoid manufacturing interference in the lower rolling groove 313 and the neck 32, so the design may be increased. It is more preferable that the center of the three balls is d3 and the neck width W2 is smaller than the third ball center distance d3 by the diameter of one of the balls.
此外，當各該滾珠50容置於各該滾動溝311、312、313內時， 本發明之滾珠50與滾動溝311、312、313符合赫茲接觸理論(Hertz contact theory)之假設與定義，則該滾珠50與該各滾動溝311、312、313分別產生一接觸點T，該滾珠50或該各滾動溝311、312、313的接觸面上通過該接觸點T具有一法線N，各該上滾動溝311、各該中滾動溝312之滾珠50的該法線N分別與Z方向之上方向之間的夾角則定義出一接觸角α，而各該上滾動溝311、各該中滾動溝312分別與其接觸之滾珠50的接觸角α為20~70度，從製造方向考慮，接觸角α小於20度會使滾珠50或該各滾動溝311、312、313的接觸面變小，而降低接觸面所能承受的負荷能力；相反的，如果接觸角α大於70度會使滾珠50或該各滾動溝311、312、313在Z方向的負荷能力降低而無法達到本發所要達到的高下壓剛性的目的；更佳地，為避免製造上的不穩定所導致的問題，並提高本發明所要達到的高下壓剛性的特色，接觸角α以30~50度更佳；而最佳設計角度為40度；另外，從各滾珠50及各滾動溝311、312在受力後的變形量應一致來考量，各該上滾動溝311及各該中滾動溝312之接觸角α以設計為等值為較佳；且，同理，各該下滾動溝313之滾珠50的該法線N分別與Z方向之下方向之間的夾角同樣定義出一接觸角α，而各該下滾動溝313與其接觸之滾珠50的接觸角α為20~70度，30~50度為更佳，而40度為最佳。 In addition, when each of the balls 50 is received in each of the rolling grooves 311, 312, and 313, The ball 50 of the present invention and the rolling grooves 311, 312, and 313 conform to the assumption and definition of the Hertz contact theory, and the ball 50 and the rolling grooves 311, 312, and 313 respectively generate a contact point T, the ball 50 or the contact surface of each of the rolling grooves 311, 312, 313 has a normal N through the contact point T, and the normal N of each of the upper rolling groove 311 and the ball 50 of each of the rolling grooves 312 respectively and Z The angle between the directions above the direction defines a contact angle α, and the contact angle α of each of the upper rolling grooves 311 and the rolling grooves 312 respectively contacting the balls 50 is 20 to 70 degrees, which is considered from the manufacturing direction. If the contact angle α is less than 20 degrees, the contact surface of the ball 50 or the rolling grooves 311, 312, and 313 becomes small, and the load capacity that the contact surface can withstand is reduced; on the contrary, if the contact angle α is greater than 70 degrees, The ball 50 or the rolling grooves 311, 312, and 313 have a reduced load capacity in the Z direction and cannot achieve the high pressing rigidity to be achieved by the present invention; more preferably, in order to avoid problems caused by manufacturing instability, And to improve the characteristics of the high pressing rigidity to be achieved by the present invention, The antenna angle α is preferably 30 to 50 degrees, and the optimum design angle is 40 degrees. In addition, the amount of deformation of each of the balls 50 and the rolling grooves 311 and 312 after the force is applied should be considered, and each of the upper rolling grooves 311 is considered. And the contact angle α of each of the middle rolling grooves 312 is designed to be equal; and, similarly, the angle between the normal N of the balls 50 of each of the lower rolling grooves 313 and the direction below the Z direction is respectively A contact angle α is also defined, and the contact angle α of each of the lower rolling grooves 313 in contact with the balls 50 is 20 to 70 degrees, preferably 30 to 50 degrees, and 40 degrees is optimum.
以上為本發明高下壓剛性線性滾珠滑軌的結構組態及特 徵，而首先值得說明的是，由於本發明之各該滾動溝311、312、313是對稱設置於該滑軌30的兩側，該滑軌30的上方頂面並未配置滾動溝，因此於研磨生產該滑軌30時可如圖6所示於該滑軌30的兩側分別透過一側研磨件A同時進行一次性的研磨加工即可完成，不需再進行上方或其他方向的研磨，而能簡化生產工序、提高生產效率，並創造更高的經濟效益；並且也避免習知技術使用兩次加工工序的加工基準不同，使頂面及側面之滾動溝相對具有誤差，而降低滾珠滑軌的精準度的問題；而本發明在靜額定負荷能力方面，靜額定負荷數值與每一列的滾珠總數量、整體滾珠滑軌的滾珠列數成正相關關係，而本發明整體共具有六列滾珠，相較於一般兩列、四列之滾珠滑軌能具有更高的靜額定負荷；且結構的截面積大小會明顯影響結構的剛性，本發明在增加滾珠50列數的同時又特別限制該頸部寬度W2如上述限制，據以使該頸部寬度W2不致因增加滾珠50列數而縮小寬度而影響該滑軌30的剛性，本發明同時增加滾珠50列數並維持頸部寬度W2，而能確實提高滑軌30剛性，延長產品壽命；並且為特別達到增加下壓剛性的效果，及提昇下壓方向靜額定負荷，本發明在頭部31的上半部設四滾動溝311、312(兩側各二滾動溝，故共有四滾動溝)，而在頭部31的下半部只設二滾動溝313(如圖4所示)，即該上滾動溝311及該中滾動312溝設於該頭部31的上半部，而該下滾動溝313設於頭部31的下半部；請參考本發明之靜額定負荷顯然優於兩種習知產品的比較數據圖如圖7所示，圖7中之縱軸表在下壓方向之靜額定負荷，最左側長條A為本發明之下壓方向之靜額定負荷數值，而中間的長條B為同一大小之一般線性滑軌 之下壓方向之靜額定負荷數值，最右側長條C為習用加強下壓線性滑軌之下壓方向之靜額定負荷數值，由圖7可得知本發明之下壓方向之靜額定負荷數值遠高於一般之線性滑軌，且也明顯高於習用加強下壓線性滑軌之靜額定負荷數值(在相同尺寸限制下的比較)；另外，由於滾珠滑軌的滑軌剛性亦與鋼珠的列數成正相關關係，因此在本發明設置為六列滾珠的狀態下，相較於一般兩列、四列之滾珠滑軌即能具有更高的剛性，請參考本發明之下壓及側向剛性值顯然優於兩種習知產品的比較數據圖如圖8所示，圖8中之縱軸表線性滾珠滑軌在下壓方向或側向之剛性，長條A為本發明之線性滑軌之剛性值，長條B為一般線性滑軌之剛性值，長條C為習用加強下壓之線性滑軌之剛性值，本發明之下壓方向的剛性值遠高於一般同一大小之線性滑軌，而且明顯也高於習用加強下壓線性滑軌之下壓方向的剛性值，並且如果由側向剛性值來評估，本發明之側向剛性值不只遠高於一般同一大小之線性滑軌，而且也遠高於習用加強下壓線性滑軌之剛性值(在相同尺寸限制下的比較)；再者，本發明更特別配置各滾珠50與滾動溝312的接觸角α之角度為20~70度，請配合參閱圖9所示為本發明接觸角α改變與下壓及側向靜額定負荷之數據圖，圖9中之縱軸表線性滾珠滑軌之靜額定負荷，實線(三角形數據點)表示下壓方向之靜額定負荷，而虛線(圓形數據點)表示側向之靜額定負荷，雖然降低接觸角α的角度可提升下壓方向之靜額定負荷，但也相對地更大幅地降低側向之靜額定負荷，圖9顯示在接觸角α之角度小於20度以後，側向負荷之靜額定負荷持續下降，但下壓方向的靜額定負荷提昇的效果減緩，同樣地，在接觸角α之角度大於70度以後，下壓方 向之靜額定負荷持續下降，但側向負荷的靜額定負荷提昇的效果不大，也就是接觸角α之角度小於20度或大於70度時，想增加的靜額定負荷並無明顯增加，反而造成另一方向之靜額定負荷明顯減少，而一般運載裝置對於線性滾珠滑軌的需求通常必須兼具下壓方向及側向之靜額定負荷，故在接觸角α之角度設計上以20~70度為佳；再者，從圖9所示之曲線可以看到，在接觸角α為50度時，下壓方向的靜額定負荷約等於側向的靜額定負荷，而本發明的考量在於提昇下壓剛性，故以選擇接觸角α為小於50度使下壓方向的靜額定負荷大於側向的靜額定負荷為更佳，而再從側向的靜額定負荷曲線來看，在接觸角α之角度為30度時，側向的靜額定負荷數值已達到其側向的靜額定負荷之最大數值的一半以上，也就是其已具有相當的側向的靜額定負荷，故，選擇接觸角α之角度大於30度可以達到兼顧側向的靜額定負荷的效果，因此在設計上以接觸角α之角度大於30度為更佳，即接觸角α之角度在30~50度為更佳；而最佳實施例是設置接觸角α為40度，於此狀態下下壓方向的靜額定負荷明顯高於側向的靜額定負荷，能顯著提高下壓負荷能力，且又兼具有很好側向負荷的能力，提供高下壓剛性之特性，滿足下壓負荷需求較高的使用狀況。 The above is the structural configuration and special design of the high-pressure rigid linear ball slide of the present invention. It should be noted that, firstly, each of the rolling grooves 311, 312, and 313 of the present invention is symmetrically disposed on two sides of the sliding rail 30, and the upper top surface of the sliding rail 30 is not provided with a rolling groove, so When the sliding rail 30 is produced by grinding, the one side of the sliding rail 30 can be simultaneously subjected to one-time grinding processing on both sides of the sliding rail 30 as shown in FIG. 6, and no grinding in the upper direction or the other direction is required. It can simplify the production process, improve the production efficiency, and create higher economic benefits; and also avoid the different processing benchmarks of the prior art using two processing steps, so that the top and side rolling grooves have relative errors, and the ball slip is reduced. The accuracy of the rail; and the static load rating of the present invention, the static load rating is positively correlated with the total number of balls in each column and the number of balls of the integral ball slide, and the present invention has a total of six rows of balls. Compared with the general two-row and four-column ball slides, the ball can have a higher static load rating; and the cross-sectional area of the structure can significantly affect the rigidity of the structure, and the present invention increases the number of rows of balls 50. In particular, the neck width W2 is limited as described above, so that the neck width W2 does not reduce the width of the rail 30 by increasing the number of rows of balls 50, and the present invention simultaneously increases the number of rows of balls 50 and maintains The width of the neck is W2, and the rigidity of the slide rail 30 can be surely increased, and the life of the product is prolonged; and in order to achieve the effect of increasing the rigidity of the depression, and the static load rating of the depression direction, the present invention is provided in the upper half of the head 31. Rolling grooves 311, 312 (two rolling grooves on both sides, so there are four rolling grooves), and only two rolling grooves 313 (shown in FIG. 4) are provided in the lower half of the head 31, that is, the upper rolling groove 311 and The middle rolling 312 groove is disposed in the upper half of the head 31, and the lower rolling groove 313 is disposed in the lower half of the head 31; please refer to the comparison of the static rated load of the present invention which is obviously superior to the two conventional products. The data is shown in Fig. 7. The vertical axis in Fig. 7 shows the static load rating in the direction of pressing, and the leftmost strip A is the static rated load value in the downward direction of the invention, and the middle strip B is the same size. General linear slide The static rated load value of the lower pressure direction, the rightmost strip C is the static rated load value of the downward pressure direction of the linear slide under the reinforced press. The static rated load value of the lower pressure direction of the present invention can be seen from FIG. It is much higher than the general linear slide rail, and is also significantly higher than the static rated load value of the conventionally reinforced linear slide rail (compared under the same size limit); in addition, due to the sliding rail rigidity of the ball slide rail and the steel ball The number of columns is positively correlated. Therefore, in the state in which the present invention is set to six rows of balls, the ball slides can be more rigid than the two rows and four columns, refer to the lower and lateral directions of the present invention. The stiffness data is obviously superior to the comparison data of two conventional products. As shown in Fig. 8, the longitudinal axis of the linear ball slide in Fig. 8 is in the down direction or the lateral rigidity, and the strip A is the linear slide of the present invention. The rigidity value, the strip B is the rigidity value of the general linear slide rail, and the strip C is the rigidity value of the linear slide rail which is used to strengthen the down-pressure. Under the present invention, the rigidity value in the pressure direction is much higher than the linear slip of the same size. Track, and obviously higher than the practice The rigidity value of the pressure direction under the linear slide is pressed, and if evaluated by the lateral rigidity value, the lateral rigidity value of the present invention is not only much higher than the linear slide of the same size, but also much higher than the conventional reinforcement. The rigidity of the linear slide (comparison under the same size limit); further, the angle of the contact angle α of each of the balls 50 and the rolling groove 312 is 20 to 70 degrees, please refer to FIG. For the data of the contact angle α change and the down pressure and the lateral static load rating of the present invention, the static load rating of the linear ball slide of the vertical axis table in FIG. 9 and the solid line (triangle data point) indicate the static rating of the down direction. The load, while the dashed line (circular data point) indicates the lateral static load rating. Although the angle of the contact angle α is lowered to increase the static load rating in the down direction, the lateral static load is relatively significantly reduced. Figure 9 shows that after the angle of the contact angle α is less than 20 degrees, the static load rating of the lateral load continues to decrease, but the effect of the static load rating increase in the down direction is slowed down. Similarly, after the angle of the contact angle α is greater than 70 degrees , press down The static rated load continues to decrease, but the static load rating of the lateral load is not effective, that is, when the angle of the contact angle α is less than 20 degrees or greater than 70 degrees, the static load rating to be increased does not increase significantly, but instead The static load rating in the other direction is significantly reduced, and the general carrier needs for the linear ball bearing rail generally has both the down direction and the lateral static load rating, so the design angle of the contact angle α is 20~70. Moreover, it can be seen from the curve shown in FIG. 9 that when the contact angle α is 50 degrees, the static rated load in the pressing direction is approximately equal to the lateral static rated load, and the consideration of the present invention is to improve The rigidity is lowered, so that the contact angle α is less than 50 degrees, so that the static load rating in the down direction is greater than the static load rating in the lateral direction, and the static load rating curve in the lateral direction is at the contact angle α. When the angle is 30 degrees, the lateral static load rating has reached more than half of the maximum value of the lateral static load rating, that is, it has a considerable lateral static load rating, so the contact angle α is selected. Angle More than 30 degrees can achieve the effect of balancing the static load rating in the lateral direction. Therefore, it is better to design the angle of the contact angle α to be more than 30 degrees, that is, the angle of the contact angle α is preferably 30 to 50 degrees; In the embodiment, the contact angle α is set to 40 degrees. In this state, the static load rating in the down direction is significantly higher than the lateral static load, which can significantly improve the down load capacity and has a good lateral load. The ability to provide high downforce rigidity to meet the high pressure load requirements.
30‧‧‧滑軌 30‧‧‧Slide rails
31‧‧‧頭部 31‧‧‧ head
311‧‧‧上滾動溝 311‧‧‧Upper rolling groove
312‧‧‧中滾動溝 312‧‧ ‧ rolling groove
313‧‧‧下滾動溝 313‧‧‧ under the rolling groove
32‧‧‧頸部 32‧‧‧ neck
33‧‧‧底部 33‧‧‧ bottom
40‧‧‧滑塊 40‧‧‧ Slider
41‧‧‧套槽 41‧‧‧ sets of slots
411‧‧‧滾動槽 411‧‧‧ rolling groove
50‧‧‧滾珠 50‧‧‧ balls
Y‧‧‧方向 Y‧‧‧ direction
Z‧‧‧方向 Z‧‧‧ direction
W1‧‧‧頭部寬度 W1‧‧‧ head width
W2‧‧‧頸部寬度 W2‧‧‧ neck width
W3‧‧‧底部寬度 W3‧‧‧ bottom width
L‧‧‧對稱軸 L‧‧‧ axis of symmetry
d1‧‧‧第一滾珠中心距 D1‧‧‧first ball center distance
d2‧‧‧第二滾珠中心距 D2‧‧‧second ball center distance
d3‧‧‧第三滾珠中心距 D3‧‧‧ third ball center distance
T‧‧‧接觸點 T‧‧‧ touch points
α‧‧‧接觸角 ‧‧‧‧contact angle
N‧‧‧法線 N‧‧‧ normal
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103130355A TWI555923B (en) | 2014-09-03 | 2014-09-03 | High pressure rigid linear ball slide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103130355A TWI555923B (en) | 2014-09-03 | 2014-09-03 | High pressure rigid linear ball slide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201610314A TW201610314A (en) | 2016-03-16 |
| TWI555923B true TWI555923B (en) | 2016-11-01 |
Family
ID=56085089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103130355A TWI555923B (en) | 2014-09-03 | 2014-09-03 | High pressure rigid linear ball slide |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI555923B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI703276B (en) * | 2018-05-31 | 2020-09-01 | 全研科技有限公司 | High-load slide rail structure |
| CN112723219B (en) * | 2020-12-08 | 2022-11-25 | 滁州学院 | Automotive interior adds thermoformed carpet nail frame elevating system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM310272U (en) * | 2006-08-31 | 2007-04-21 | Hiwin Tech Corp | Circulation apparatus for linear guide-ways |
| CN201359008Y (en) * | 2008-09-01 | 2009-12-09 | 俞大邦 | Pure rolling bearing |
| CN201810667U (en) * | 2010-10-23 | 2011-04-27 | 江龙 | Composite self-sealing angular contact ball bearing |
| CN203641268U (en) * | 2013-12-27 | 2014-06-11 | 洛阳汇工大型轴承制造有限公司 | Novel double-row angular contact ball bearing |
-
2014
- 2014-09-03 TW TW103130355A patent/TWI555923B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM310272U (en) * | 2006-08-31 | 2007-04-21 | Hiwin Tech Corp | Circulation apparatus for linear guide-ways |
| CN201359008Y (en) * | 2008-09-01 | 2009-12-09 | 俞大邦 | Pure rolling bearing |
| CN201810667U (en) * | 2010-10-23 | 2011-04-27 | 江龙 | Composite self-sealing angular contact ball bearing |
| CN203641268U (en) * | 2013-12-27 | 2014-06-11 | 洛阳汇工大型轴承制造有限公司 | Novel double-row angular contact ball bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201610314A (en) | 2016-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101602228B1 (en) | Linear ball bearing guideway | |
| TWI555923B (en) | High pressure rigid linear ball slide | |
| CN203109093U (en) | T-shaped guide rail aligning guider | |
| TWI500856B (en) | Circulating channel structure of linear slide | |
| TWI558925B (en) | Direct drive device | |
| US20110110615A1 (en) | Track rail and motion guidance apparatus including the track rail | |
| CN202484086U (en) | Rolling linear guide rail pair adopting drum-shaped rollers | |
| CN103433754A (en) | Radial heavy load type roller linear guide rail pair | |
| CN206429854U (en) | A kind of sandwich-type compound pressure-bearing plate | |
| CN103423301A (en) | Radial heavy-load type roller sliding base | |
| KR101602237B1 (en) | Six-row ball bearing linear guideway | |
| TWI555924B (en) | Six rows of ball type linear guideway | |
| CN105485163B (en) | Six row ball-type linear slide rails | |
| CN104675857A (en) | Two-way bearing heavy load guide rail pair | |
| CN201443565U (en) | Rolling friction device | |
| JP6118779B2 (en) | Linear ball guideway | |
| JP6118779B6 (en) | Linear ball guideway | |
| US9127715B2 (en) | Bearing device for motion guide device | |
| CN105465172B (en) | Height pushes rigid linear ball slide rail | |
| CN203412941U (en) | Heavy-load roller linear guide rail pair | |
| TWM473454U (en) | Guideway assembly | |
| CN203751903U (en) | Abrasive paper belt downward-pressing mechanism of timber temper mill | |
| WO2015194168A1 (en) | Linear guide device | |
| TWI550203B (en) | Slider structure and its grinding method | |
| CN103047282A (en) | Rolling ball retention chain capable of torsional operation and linear movement mechanism composed of same |