TWM500176U - Ball screw with brushing device - Google Patents

Description

具刮刷器之滾珠螺桿 Ball screw with wiper

本創作係為一種線性傳動元件，尤指一種具刮刷器之滾珠螺桿。 This creation is a linear transmission element, especially a ball screw with a wiper.

按，精密機械、儀器中常使用一螺桿的轉動帶動一螺帽的移動，該螺帽上並提供一工作檯的設置，以此利用螺桿達到工作檯的精確控制，而螺帽於螺桿上移動時，為了增加移動的順暢、增加附載與減少磨擦力，均會於螺帽及螺桿間的相對螺紋槽設置滾珠，而螺帽於螺桿上，同時間僅一小段的接觸，多數其餘的螺桿段，均是暴露於外部空間中，而空間內佈滿了粉塵與各種異物，尤其多數的加工場所，環境更是惡劣，還有許多切削屑與加工油水的噴濺，該螺帽與該螺桿間並非密閉，因均為金屬構件，因此具有一間隙的存在，當這些粉塵、異物與切削屑落在螺桿表面時，會附著於螺桿表面，尤其含有油水時，該些附著物的附著累積更是驚人，且隨著螺桿的轉動與螺帽的移動，該些附著物並會由間隙進入螺桿與螺帽間到達滾珠處，進而會干涉滾珠的滾動與滾珠的磨耗，最終會影響該滾珠螺桿的壽命與精度，因此如何消除該間隙的存在，防止附著物進入滾珠螺桿內，便有許多結構的設計因應而生，其中最常見的結構即係第五圖的設計，係一螺桿(1)上設一螺帽(2)，該螺桿(1)與該螺帽(2)間並各設有一螺紋槽(11、21)，複數滾珠(4)係設於該螺紋槽(11、21)中循環滾動， 且該螺帽(2)的端部內徑處設有一容置槽(22)，以該容置槽(22)提供一刮刷器(3)的設置，該容置槽(22)的周緣設置複數貫穿螺孔(23)，以該貫穿螺孔(23)提供該螺絲(5)鎖設，而該螺絲(5)係抵觸於該刮刷器(3)外緣，該刮刷器(3)係設於該容置槽(22)內，且內周緣設有配合該螺桿(1)螺紋槽(11)形狀的刮刷部(31)，該刮刷部(31)並配合該螺紋槽(11)以幾乎貼合的方式設置，使該螺帽(2)及該刮刷器(3)於螺桿(1)上移動時，以該刮刷部(31)將該螺桿(1)上的附著物刮除，俾避免進入該螺帽(2)內。 According to the precision machinery and equipment, the rotation of a screw is often used to drive the movement of a nut. The nut is provided with a table setting, so that the screw can be used to achieve precise control of the table, and the nut moves on the screw. In order to increase the smoothness of the movement, increase the load and reduce the friction force, the balls are arranged on the opposite thread grooves between the nut and the screw, and the nut is on the screw with only a short contact at the same time, and most of the remaining screw segments, They are all exposed to the external space, and the space is covered with dust and various foreign objects. Especially in most processing places, the environment is even worse. There are also many sprinkles of cutting chips and processing oil. The nut is not between the screw and the screw. Sealed, because they are all metal members, so there is a gap. When these dust, foreign matter and cutting chips fall on the surface of the screw, they will adhere to the surface of the screw. Especially when oil and water are contained, the accumulation of these deposits is even more amazing. And with the rotation of the screw and the movement of the nut, the attachments will enter the ball between the screw and the nut through the gap, thereby interfering with the rolling of the ball and The wear of the beads will eventually affect the life and accuracy of the ball screw. Therefore, how to eliminate the existence of the gap and prevent the attachment from entering the ball screw, many structural designs are born, and the most common structure is the fifth. The design of the figure is that a screw (1) is provided with a nut (2), and a screw groove (11, 21) is arranged between the screw (1) and the nut (2), and the plurality of balls (4) are Circulating rolling in the thread groove (11, 21), And an accommodating groove (22) is disposed at an inner diameter of the end of the nut (2), and the accommodating groove (22) provides a setting of a squeegee (3), and the peripheral edge of the accommodating groove (22) a plurality of through holes (23), the screw (5) is provided with the screw (5), and the screw (5) is in contact with the outer edge of the wiper (3), the wiper (3) Is disposed in the accommodating groove (22), and the inner peripheral edge is provided with a wiping portion (31) that matches the shape of the screw groove (11) of the screw (1), and the wiping portion (31) fits the thread groove (11) being disposed in an almost fitting manner, when the nut (2) and the wiper (3) are moved on the screw (1), the screw (1) is attached to the screw (1) by the wiping portion (31) The attachment is scraped off and the inside of the nut (2) is avoided.

前述習知結構使用具有下述的問題：正常的刮刷器(3)之刮刷部(31)與螺桿(1)之螺紋槽(11)的配合，其之間應具有間隙，因為於刮刷部(31)相對該螺紋槽(11)旋轉時，該刮刷部(31)才不會與該螺紋槽(11)產生摩擦，而增加該滾珠螺桿運行的阻力(如第五圖所示，該刮刷部(31)與螺紋槽(11)係產生干涉)，但因為該刮刷器(3)組裝時係由人工將刮刷器(3)旋入螺桿(1)的螺紋槽(11)，而後再容置於該螺帽(2)之容置槽(22)，當刮刷器(3)進入該容置槽(22)後，裝配人員並無法得知刮刷部(31)是否與該螺紋槽(11)保持一間隙，因為刮刷部(31)與螺紋槽(11)之間的間隙以肉眼是看不到的，必須藉由量測滾珠螺桿運行的數據才能得知該刮刷部(31)是否與螺紋槽(11)干涉，故於確認過程中相當費時，如此，會使得裝配時間延長許多，且因為是藉由人工來調整刮刷部(31)與螺紋槽(11)的間隙，所以每一個人的調整結果一定無法一致，故也造成每一支滾珠螺桿的品質不一，相對也提高了客戶抱怨的次數，是以，習知的刮刷器結構設計仍有改良精進之必要。 The above conventional structure uses the problem that the wiping portion (31) of the normal wiper (3) and the screw groove (11) of the screw (1) are fitted with a gap therebetween because of the scraping When the brush portion (31) rotates relative to the thread groove (11), the wiper portion (31) does not rub against the thread groove (11), and the resistance of the ball screw operation is increased (as shown in the fifth figure). The wiper portion (31) interferes with the thread groove (11), but because the wiper (3) is assembled, the wiper (3) is manually screwed into the thread groove of the screw (1) ( 11), and then placed in the receiving groove (22) of the nut (2). When the wiper (3) enters the receiving groove (22), the assembler cannot know the wiping portion (31). Is there a gap with the thread groove (11) because the gap between the wiper portion (31) and the thread groove (11) is invisible to the naked eye, and it is necessary to measure the data of the ball screw operation to obtain It is known whether the wiping portion (31) interferes with the thread groove (11), so it is quite time consuming in the confirmation process, so that the assembly time is prolonged a lot, and since the wiping portion (31) and the thread are manually adjusted The gap of the slot (11), so each one The adjustment results will not be consistent, it is also resulting in a different quality of each ball screw, the relative also increased the number of customer complaints, therefore, the conventional wiper design of sophisticated improvements are still necessary.

有鑑於上述問題，本創作主要目的在於：研發一種刮刷器可自動調整與螺桿軸之滾動溝之干涉量。 In view of the above problems, the main purpose of this creation is to develop a wiper that automatically adjusts the amount of interference with the rolling groove of the screw shaft.

為達成上述之目的，本創作係為一種具刮刷器之滾珠螺桿，係包含：一螺桿軸，其延一方向伸長為長條狀結構，定義該伸長方向為軸方向，該螺桿軸之外緣面設有螺旋狀之滾動溝；一螺帽模組，其具一供螺桿軸穿設之穿孔，該穿孔之內緣面設有相對該滾動溝之滾動槽，該滾動溝與滾動槽之間係設有複數滾動件，該螺帽於該穿孔的兩端分別設有一安裝槽；兩刮刷器，其分別係設置於兩該安裝槽，該刮刷器包含一環狀的定位座及兩半環狀的本體，該定位座一端係設有開放式的容置槽，定義該容置槽具有一開放端，該定位座係設於該安裝槽且該開放端係對應該安裝槽之槽底設置，該容置槽的內緣面設有複數軸方向的第一滑動部；兩該本體係由該開放端設置於該容置槽，兩該本體於外緣面設有複數對應該第一滑動部之第二滑動部，且於內緣面設有朝該滾動溝凸伸的唇部，該唇部係容置於該滾動溝；其中，該本體容設於該安裝槽之厚度係小於該安裝槽之軸方向長度。 In order to achieve the above object, the present invention is a ball screw with a scraper, comprising: a screw shaft extending in a direction to a long strip shape, defining the direction of elongation as an axial direction, outside the screw shaft The rim surface is provided with a spiral rolling groove; a nut module having a through hole for the screw shaft, the inner edge surface of the hole is provided with a rolling groove opposite to the rolling groove, and the rolling groove and the rolling groove a plurality of rolling elements are disposed between the two ends of the perforation, and two squeegees are respectively disposed on the two mounting slots, and the squeegee includes an annular positioning seat and The two ends of the positioning body are provided with an open receiving slot at one end, and the receiving slot defines an open end. The positioning seat is disposed on the mounting slot and the open end is corresponding to the slot. a groove bottom is disposed, the inner edge surface of the accommodating groove is provided with a first sliding portion in a plurality of axial directions; and the two systems are disposed on the accommodating groove by the open end, and the two bodies are provided with a plurality of corresponding faces on the outer edge surface a second sliding portion of the first sliding portion, and is provided on the inner edge surface toward the rolling Projecting lip, the lip received in the rolling groove line; wherein the thickness of the body accommodated in the groove of the mounting system is less than the axial direction length of the mounting groove.

較佳的，該第一滑動部為一凹槽，該第二滑動部係為一凸塊。 Preferably, the first sliding portion is a groove, and the second sliding portion is a protrusion.

較佳的，該第一滑動部為一凸塊，該第二滑動部係為一凹槽。 Preferably, the first sliding portion is a protrusion, and the second sliding portion is a groove.

藉此，由該本體容設於該安裝槽之厚度係小於該安裝槽之軸方向長度，及由該第一滑動部與第二滑動部配合以限制兩該本體相對該定位座旋轉之自由度，當該唇部與滾動溝之間有較大干涉產生時，兩該本體係可藉由該第一滑動部與第二滑動部配合可相 對該定位座進行軸方向的滑移，而吸收了該干涉量，避免唇部與滾動溝之間的磨耗。 Thereby, the thickness of the mounting groove in the mounting groove is smaller than the axial length of the mounting groove, and the first sliding portion and the second sliding portion cooperate to limit the degree of freedom of rotation of the two bodies relative to the positioning seat. When the lip portion and the rolling groove have a large interference, the two systems can be matched by the first sliding portion and the second sliding portion. The positioning seat is slid in the axial direction, and the interference amount is absorbed to avoid wear between the lip and the rolling groove.

習知技術 Conventional technology

1‧‧‧螺桿 1‧‧‧ screw

11‧‧‧螺紋槽 11‧‧‧Thread groove

2‧‧‧螺帽 2‧‧‧ nuts

21‧‧‧螺紋槽 21‧‧‧Thread groove

22‧‧‧容置槽 22‧‧‧ accommodating slots

23‧‧‧貫穿螺孔 23‧‧‧through screw holes

4‧‧‧滾珠 4‧‧‧ balls

3‧‧‧刮刷器 3‧‧‧Scratch

31‧‧‧刮刷部 31‧‧‧Scratch

5‧‧‧螺絲 5‧‧‧ screws

本創作 This creation

1‧‧‧螺桿軸 1‧‧‧Screw shaft

11‧‧‧滾動溝 11‧‧‧ rolling groove

2‧‧‧螺帽模組 2‧‧‧ Nut Module

21‧‧‧穿孔 21‧‧‧Perforation

211‧‧‧滾動槽 211‧‧‧ rolling groove

22‧‧‧安裝槽 22‧‧‧Installation slot

221‧‧‧槽底 221‧‧‧ bottom

3‧‧‧滾動件 3‧‧‧Rolling parts

4‧‧‧定位座 4‧‧‧ Positioning Block

41‧‧‧第一滑動部 41‧‧‧First sliding part

42‧‧‧容置槽 42‧‧‧ accommodating slots

421‧‧‧開放端 421‧‧‧ open end

51‧‧‧本體 51‧‧‧Ontology

511‧‧‧第二滑動部 511‧‧‧Second sliding part

512‧‧‧唇部 512‧‧‧Lip

X‧‧‧軸方向 X‧‧‧axis direction

H‧‧‧長度 H‧‧‧ length

h‧‧‧厚度 H‧‧‧thickness

第一圖係為本創作具具刮刷器之滾珠螺桿的分解圖。 The first figure is an exploded view of a ball screw with a scraper.

第二圖係為本創作具具刮刷器之滾珠螺桿的組合圖。 The second figure is a combination diagram of a ball screw with a scraper.

第三圖係為本創作具具刮刷器之滾珠螺桿的軸方向之剖視圖。 The third figure is a cross-sectional view of the axial direction of the ball screw with the wiper.

第四圖係為本創作具具刮刷器之滾珠螺桿的徑方向之剖視圖。 The fourth figure is a cross-sectional view of the radial direction of the ball screw with the wiper.

第五圖係為習知技術具刮刷器之滾珠螺桿的剖視圖。 The fifth drawing is a cross-sectional view of a conventional ball screw having a wiper.

請參閱第一圖至第二圖所示，本創作係為一種具刮刷器之滾珠螺桿，係包含：一螺桿軸(1)，其延一方向伸長為長條狀結構，定義該伸長方向為軸方向(X)，該螺桿軸(1)之外緣面設有螺旋狀之滾動溝(11)；一螺帽模組(2)，其具一供螺桿軸(1)穿設之穿孔(21)，該穿孔(21)之內緣面設有相對該滾動溝(11)之滾動槽(211)，該滾動溝(11)與滾動槽(211)之間係設有複數滾動件(3)，該螺帽(2)於該穿孔(21)的兩端分別設有一安裝槽(22)；兩刮刷器，其分別係設置於兩該安裝槽(22)，該刮刷器包含一環狀的定位座(4)及兩半環狀的本體(51)，該定位座(4)一端係設有開放式的容置槽(42)，定義該容置槽(42)具有一開放端(421)，該定位座(4)係設於該安裝槽(22)且該開放端(421)係對應該安裝槽(22)之槽底(221)設置，如第三、四圖所示，該容置槽(42)的內緣面設有複數軸方向(X)的第一滑動部(41)；兩該本體(51)係由該開放端設置於該容置槽(42)，兩該本體(51)於外緣 面設有複數對應該第一滑動部(41)之第二滑動部(511)，於本實施例該第一滑動部(41)為一凹槽，第二滑動部(511)為一凸塊，藉由該凸塊滑設於該凹槽，且該本體(51)之內緣面設有朝該滾動溝(11)凸伸的唇部(512)，該唇部(512)係容置於該滾動溝(11)；其中，該本體(51)容設於該容置槽(42)之厚度(h)係小於該容置槽(42)之軸方向(X)長度(H)。 Referring to the first to second figures, the present invention is a ball screw with a scraper, comprising: a screw shaft (1) which is elongated in a direction to a long strip structure defining the direction of elongation For the axial direction (X), the outer peripheral surface of the screw shaft (1) is provided with a spiral rolling groove (11); a nut module (2) having a perforation for the screw shaft (1) (21) The inner edge surface of the through hole (21) is provided with a rolling groove (211) opposite to the rolling groove (11), and a plurality of rolling elements are arranged between the rolling groove (11) and the rolling groove (211) ( 3) The nut (2) is respectively provided with a mounting groove (22) at two ends of the through hole (21); two scrapers are respectively disposed on the two mounting grooves (22), and the scraper includes An annular positioning seat (4) and a two-half annular body (51), the positioning seat (4) is provided with an open receiving groove (42) at one end, and the receiving groove (42) is defined The open end (421), the positioning seat (4) is disposed on the mounting groove (22) and the open end (421) is disposed corresponding to the groove bottom (221) of the mounting groove (22), such as the third and fourth figures As shown, the inner edge surface of the accommodating groove (42) is provided with a first sliding portion (41) of a plurality of axial directions (X); (51) is disposed on the accommodating groove (42) by the open end, and the two bodies (51) are on the outer edge The second sliding portion (511) corresponding to the first sliding portion (41) is provided on the surface. In the embodiment, the first sliding portion (41) is a groove, and the second sliding portion (511) is a convex portion. The lug is slidably disposed on the groove, and the inner edge surface of the body (51) is provided with a lip portion (512) protruding toward the rolling groove (11), and the lip portion (512) is received. In the rolling groove (11), the thickness (h) of the body (51) accommodated in the receiving groove (42) is smaller than the axial direction (X) length (H) of the receiving groove (42).

請參閱第三及四圖所示，當該本體之唇部與滾動溝產生干涉時，即可藉由該本體(51)容設於該容置槽(42)之厚度(h)係小於該容置槽(42)之軸方向(X)長度(H)之設計，讓兩該本體(51)係可藉由該第一滑動部(41)與第二滑動部(511)配合可相對該定位座(4)進行軸方向(X)的滑移，而吸收了該干涉量，避免唇部(512)與滾動溝(11)之間的磨耗。 Referring to the third and fourth figures, when the lip of the body interferes with the rolling groove, the thickness (h) of the receiving groove (42) can be smaller than the thickness of the receiving groove (42). The axial direction (X) length (H) of the accommodating groove (42) is designed such that the two main bodies (51) can be coupled to the second sliding portion (511) by the first sliding portion (41). The positioning seat (4) performs the slip in the axial direction (X), and absorbs the interference amount to avoid wear between the lip portion (512) and the rolling groove (11).

綜所上述，所以本創作之『具有產業之可利用性』應已毋庸置疑，除此之外，在本案實施例所揭露出的特徵技術，於申請之前並未曾見於諸刊物，亦未曾被公開使用，不但具有如上所述功效增進之事實，更具有不可輕忽的附加功效，是故，本創作的『新穎性』以及『進步性』都已符合專利法規，爰依法提出創作專利之申請，祈請惠予審查並早日賜准專利，實感德便。 In view of the above, the "industry availability" of this creation should be unquestionable. In addition, the characteristic techniques revealed in the examples in this case have not been seen in publications before, and have not been disclosed. The use, not only has the fact that the effect is improved as described above, but also has additional functions that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the creation have been in compliance with the patent regulations, and the application for creating a patent is proposed according to law. Please give us a review and grant a patent as soon as possible.

以上所述實施例之揭示係用以說明本創作，並非用以限制本創作，故舉凡數值之變化與等效元件之置換，仍應隸屬本創作之範疇。 The above description of the embodiments is intended to illustrate the present invention and is not intended to limit the present invention. Therefore, variations of numerical values and substitution of equivalent elements are still within the scope of the present invention.

1‧‧‧螺桿軸 1‧‧‧Screw shaft

11‧‧‧滾動溝 11‧‧‧ rolling groove

2‧‧‧螺帽模組 2‧‧‧ Nut Module

21‧‧‧穿孔 21‧‧‧Perforation

211‧‧‧滾動槽 211‧‧‧ rolling groove

22‧‧‧安裝槽 22‧‧‧Installation slot

221‧‧‧槽底 221‧‧‧ bottom

3‧‧‧滾動件 3‧‧‧Rolling parts

4‧‧‧定位座 4‧‧‧ Positioning Block

42‧‧‧容置槽 42‧‧‧ accommodating slots

421‧‧‧開放端 421‧‧‧ open end

51‧‧‧本體 51‧‧‧Ontology

512‧‧‧唇部 512‧‧‧Lip

X‧‧‧軸方向 X‧‧‧axis direction

H‧‧‧長度 H‧‧‧ length

h‧‧‧厚度 H‧‧‧thickness

Claims (3)

一種具刮刷器之滾珠螺桿，係包含：一螺桿軸，其延一方向伸長為長條狀結構，定義該伸長方向為軸方向，該螺桿軸之外緣面設有螺旋狀之滾動溝；一螺帽模組，其具一供螺桿軸穿設之穿孔，該穿孔之內緣面設有相對該滾動溝之滾動槽，該滾動溝與滾動槽之間係設有複數滾動件，該螺帽於該穿孔的兩端分別設有一安裝槽；兩刮刷器，其分別係設置於兩該安裝槽，該刮刷器包含一環狀的定位座及兩半環狀的本體，該定位座一端係設有開放式的容置槽，定義該容置槽具有一開放端，該定位座係設於該安裝槽且該開放端係對應該安裝槽之槽底設置，該容置槽的內緣面設有複數軸方向的第一滑動部；兩該本體係由該開放端設置於該容置槽，兩該本體於外緣面設有複數對應該第一滑動部之第二滑動部，且於內緣面設有朝該滾動溝凸伸的唇部，該唇部係容置於該滾動溝；其中，該本體容設於該安裝槽之厚度係小於該安裝槽之軸方向長度。 The utility model relates to a ball screw with a scraper, which comprises: a screw shaft which is elongated into a long strip structure in one direction, defines the elongation direction as an axial direction, and a spiral rolling groove is arranged on the outer edge surface of the screw shaft; a nut module having a perforation for the screw shaft, the inner edge surface of the perforation is provided with a rolling groove opposite to the rolling groove, and a plurality of rolling elements are arranged between the rolling groove and the rolling groove, the screw The cap is respectively provided with a mounting groove at two ends of the through hole; two scrapers are respectively disposed on the two mounting slots, and the scraper comprises an annular positioning seat and two semi-annular bodies, the positioning seat An accommodating groove is defined at one end, and the accommodating groove has an open end. The locating seat is disposed at the mounting groove, and the open end is disposed at a bottom of the groove corresponding to the mounting groove, and the inside of the accommodating groove The edge surface is provided with a first sliding portion in a plurality of axial directions; the two systems are disposed on the receiving groove by the open end, and the two bodies are provided with a plurality of second sliding portions corresponding to the first sliding portion on the outer edge surface, And a lip protruding toward the rolling groove is disposed on the inner edge surface, and the lip portion is placed Rolling grooves; wherein a thickness of the body accommodated in the groove of the mounting system is less than the axial direction length of the mounting groove. 如請求項1所述之具刮刷器之滾珠螺桿，其中，該第一滑動部為一凹槽，該第二滑動部係為一凸塊。 The ball screw with a wiper according to claim 1, wherein the first sliding portion is a groove, and the second sliding portion is a bump. 如請求項1所述之具刮刷器之滾珠螺桿，其中，該第一滑動部為一凸塊，該第二滑動部係為一凹槽。 The ball screw with a wiper according to claim 1, wherein the first sliding portion is a bump, and the second sliding portion is a groove.