TWM442426U - External circulation type ball screw - Google Patents

Description

M442426 V. New description: [New technical field] [0001] This creation is a kind of ball screw circulation system, especially the recirculation element of the outer circulation type ball screw. [Prior Art] [0002] As disclosed in China’s Announcement No. I 3 5 2 7 8 5, it is disclosed

A reflow element of an outer circulation type ball screw, wherein the reflow element is composed of a combination of a first element and a second element, and a half return flow path of the first element and the second element constitutes a return flow path, and the return flow path The two ends are connected to the load path formed by the shaft and the nut to form a circulation path; and the reflow element has two connection portions, an intermediate portion and two curved portions, and the two ends of the intermediate portion are connected to the bending portion The other end of the curved portion is connected to one end of the connecting portion, and the connecting portion is inserted into the mounting hole of the nut, and the circulating path receives a plurality of rolling elements, which are the rod The transmission medium between the shaft and the nut.

ς> However, the connection portion of the reflow element is composed of a combination of the first element and the second element, and the first element and the second element are disposed in a plane with each other between the connection portions, so that the return flow path is a closed type, but because the reflow element is plastic injection molding, and the first element and the second element are of a slim shape, the finished product is easily slightly deformed, and the first component of the connection portion is caused. When the second component is combined with the second component, there is often a staggered condition, so that the return channel cannot be formed into a closed shape, and a collision is generated when the rolling element is operated, and the first component and the second component are The assembly of components in the connection department is still necessary for improvement and improvement. 0 HU21513 single-station job 101 Page 3/20 pages 1012048840-0 [0003] M442426 [New content] Based on the above-mentioned problems of the prior art, this creation After research and improvement, people can finally achieve the new birth of the following creative purposes. That is, the primary purpose of this creation is to make the return path of the reflow element a closed type and to make the inner wall surface of the return path flat. For the above purposes, the present invention is an outer-circulating ball screw comprising: a plurality of rolling elements; a screw having a long strip configuration, the outer peripheral surface of the screw being provided with a spiral rolling groove a nut having a through hole for the screw to be bored, the inner edge surface of the through hole being provided with a rolling groove opposite to the rolling groove, the rolling groove and the rolling groove forming a load path, the nut of the nut The outer peripheral surface has a plane, the plane is provided with a plurality of mounting holes, the mounting holes are connected to the through holes and engage with the rolling grooves; a reflow element is composed of a cover member and a base; <?

The cover member is generally a door type, and the two ends of the door font are respectively defined as a first leg portion, and the first connecting portion is defined between the two first leg portions, and the cover member is provided with one through the two a leg portion and a first half flow path of the first connecting portion; the base is generally a door font type, and the two ends of the door font are respectively defined as a second leg portion, and defined between the two second leg portions a second connecting portion, wherein the base is provided with a second half flow path passing through the second leg portion and the second connecting portion, and the second leg portions are respectively disposed opposite to the second half flow channel end a guiding piece; wherein the two first leg portions and the two second leg portions are respectively combined into a 10121513^ single number A〇101 page 4/20 pages 1012048840-0 M442426 two feet, the first connection The second connecting portion and the second connecting portion are combined into a connecting portion, and the two legs are respectively inserted into the two mounting holes; the first semi-flow channel and the second half-flow channel form a return channel, and both ends of the return channel Separating with the load path respectively to form a circulation path, the circulation path is provided with a plurality of rolling elements;

The first leg portion is respectively provided with a first side surface, a second side surface, a first plane and a second plane. The first side surface and the first plane line are coupled to each other with an angle therebetween, and the second portion The side surface and the second plane are coupled to each other and have an angle therebetween; the first side and the first plane form a first stop, and the second side and the second plane form a second stop; the first stop And the second blocking portion is located on both sides of the first half flow channel;

The second leg portion is respectively provided with a third side surface, a fourth side surface, a third plane, and a fourth plane. The third side surface and the third plane system are connected to each other with an angle therebetween, and the fourth side surface Interconnecting with the fourth plane and having an angle therebetween; the third side and the third plane form a first abutting portion, and the fourth side and the fourth plane form a second abutting portion; the first abutting portion The abutting portion and the second abutting portion are located on opposite sides of the second semi-flow passage; wherein the first blocking portion is disposed opposite to the first abutting portion, and the second blocking portion is relatively abutting The second abutment is provided. In order to further understand the features and technical contents of this creation, please refer to the following description of the implementation of the creation and the drawings. However, the embodiments and drawings are for illustrative purposes only and are not intended to limit the creation. . [Embodiment] [0004] 1012151# Single Number A〇101 1012048840-0 The following is a brief description of a preferred embodiment for further explaining the components and functions of the fifth page/20 pages of M442426. A brief description of each of the drawings is as follows: Figure 1 is an exploded view of the reflow element of the creation. Figure 2 is an exploded view of another perspective of the reflow element. Figure 3 is a combination of the reflow elements of the creation. Figure 4 is an exploded view of the outer circulation ball screw of the creation. Figure 5 is a combination of the externally-circulating ball screws. Fig. 6 is a cross-sectional view of the outer-circulating ball screw of the present invention. 〇 Figure 7 is an oblique cross-sectional view of the outer-circulating ball screw of the present invention. Please refer to FIG. 1 to FIG. 7 for the creation of a preferred embodiment. The present invention is an external circulation type ball screw comprising: a plurality of rolling elements (4); a screw (2), In the long strip configuration, the outer edge surface of the screw (2) is provided with a spiral rolling groove (21); a nut (3) is provided with a perforation for the thread (2) to pass through ( 31) 'the perforation (the inner edge surface of 3d is provided with a rolling groove (311) opposite to the rolling groove (21), and the rolling groove (2ι) and the rolling groove (311) constitute a load path (9〇), which The outer edge surface of the nut (3) has a plane (32), the plane (32) is provided with a plurality of mounting holes (3 2 1 ) and a plurality of threaded holes (32 2 2), the mounting holes (3 2 1. ) is in communication with the perforation (3 i ) and engages with the rolling groove ( 3 1 1 ); ', a reflow element (1) is composed of a cover member (丄, 丄J and a base (1 2): The cover (11) is generally η-shaped, n-type _ is respectively 10121513^ single number Α〇101 帛6 pages/total 20 pages 1012048840-0 疋义 is the first foot 1 1 , ,. ), Defined as the first connection between the two first feet (ii 1) The part 1 1) is provided with two passages of the first, the first member, the first half of the 1st portion (112), and the first and second L (113); and the first leg. ((1)) is provided with a first side (side (1112), first - (111/1, (1113) and second plane, 丄1 1 4), the first side (1 -J 〇, Work 11) with the first plane (

2))) are connected to each other with an angle between them. The angle is between 80 and _ 〇〇 之 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Secondly, /, the faces (1 1 1 4 ) are connected to each other and the angles of the second and the angles are between 8 〇 and 1 ' degrees. 5 is about 9 ; degrees; the _ side (丄丄) and the first flat 1 1 3) constitute a first stop, the second side (1 1 1 ', plane (1114) constitutes a second shoulder; the first stop and the second stop are located Both sides of the first money channel (113) 9

(1 2 :) The generalized gate type ' η font type is defined as the second leg (1 2 1 ), and the second leg (1 2 1 ) is defined as the second connection. a portion (1 2 2), the base (12) is provided with - through the two second leg portions (i 2 i) and the second half flow path (123) of the second connecting portion (122), The second leg portion (1 2 1 ) is divided into guide pieces (12 13) disposed at the end of the second half flow channel (1 2 3 ); the second leg portions (121) are respectively provided with the first leg portion (121) Three sides (1 2 ii), a fourth side (丄2丄2), a third plane (1214), and a fourth plane (1215) 'the third side (1 2 1 1) and the third plane (i 2 χ) 4) Department 10121513^^^ A〇101 1012048840-0 Page 7 of 20 M442426 are connected to each other with an angle between them, the angle of loss is between 8〇^ 〇0 degrees, preferably about 9 0 Degree, the fourth side (! 2 i 2 ) and the fourth plane (1215) are connected to each other with an angle of between - the central angle range is between 80 and 1 degree, preferably about 90 degrees The third side (i 2 work) and the third plane (work 2) 4 constitute a first abutment portion, the fourth The surface (1212) and the fourth plane (1 2 15) form a second abutting portion; the first abutting portion and the second abutting portion are located on both sides of the second semi-flow path (i 2 3) Next, the combination relationship between the cover member and the base is described, and the first leg portion (1 1 1) and the two second leg portions (i 2 i ) are respectively combined into two leg portions (A), the first A connecting portion (112) and a second connecting portion (12 2) are combined into a connecting portion (B), and the two leg portions (A) are respectively inserted into the two mounting holes (3 2 i ), and the reflow The component (1) is provided with a through hole (13) through which the two screws (G) are inserted. When the screw (G) is inserted through the through hole (i3), the screw hole (3 2 2) is screwed with the screw hole (3 2 2). Locking, the reflow element () is fixed to the nut (3); the first semi-flow passage (11 3) and the second semi-flow passage (123) form a return passage (C), the reflow The two ends of the track (c) are not connected to the load path (90) to form a circulation path, and the cycle path is provided with a plurality of the rolling elements (4) » In order to clearly explain the implementation characteristics of the creation, the following description This creation is more practical and practical: The second first portion is disposed opposite to the first abutting portion, and the second blocking portion is disposed opposite to the second abutting portion to increase the covering member (11) and the base. (12) The pairing position effect at the foot (A) to ensure that the return path 10121513 located at the foot (A) is numbered A01 (H page 8 / total 20 pages 1012048840-0 M442426 (c) a closed type, and the inner wall surface of the return passage (c) is flat, so that the rolling member (4) is guided by the load path (90) by the guide piece (1 2 1 3) After entering the return channel (C), it can smoothly run to the other end of the return channel (C) and then enter the load path (90), so the creation can ensure that the rolling element (4) runs smoothly in the circulation path. In order to extend the service life of the ball screw and improve the positioning accuracy of the ball screw. In view of the above, the "industrial availability" of this creation should be unquestionable. In addition, the feature technology revealed in the case of this case has not been seen in publications before, and has 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. The above description of the embodiments is used to illustrate the present invention and is not intended to limit the present invention. Therefore, the change of numerical values and the replacement of equivalent elements should still belong to the scope of the present invention.

[Simple Description of the Drawings] [0005] Figure 1 is an exploded view of the reflow element of the creation. Figure 2 is an exploded view of another perspective of the reflow element. Figure 3 is a combination of the reflow elements of the creation. Figure 4 is an exploded view of the outer circulation ball screw of the creation. Figure 5 is a combination of the externally-circulating ball screws. Fig. 6 is a cross-sectional view of the outer circulation type ball screw of the present invention. Fig. 7 is a diagonal sectional view of the outer circulation type ball screw. 1〇121513^单编号A〇101 Page 9/Total 20 Page 1012048840-0 M442426 [Main component symbol description] [0006] (1) Reflow element (II) Cover (III) First foot (1111) One side (1 1 1 2) second side (1113) first plane (1114) second plane (112) first connection part (113) first half flow path (1 2 ) base (1 2 1 ) second Foot ' (1211) third side (1 2 1 2) fourth side (1 2 1 3) guide piece (1214) third plane (1215) fourth plane (1 2 2) second connection part (1 2 3) Second half flow path (1 3 ) Through hole (A) Foot part (B) Connection part (C) Return path (2) Screw (.2 1 ) Rolling groove (3) Nut 1012048840-0 10th Page / Total 20 pages M442426 (3 1 ) Perforation (311) Rolling groove (3 2) Plane (3 2 1 ) Mounting hole (3 2 2 ) Threaded hole (4) Rolling element (G) Screw (90) Load path

10121513#^编号除1第11页 / total 20 stomach 1012048840-0

Claims (1)

M442426 VI. Patent application scope: 1. An external circulation type ball screw, comprising: a plurality of rolling parts; a screw, which is in the form of a long strip, the outer edge surface of the screw is provided with a spiral rolling groove; a nut having a through hole for the screw to be bored, the inner edge surface of the through hole being provided with a rolling groove opposite to the rolling groove, the rolling groove and the rolling groove forming a load path, and the outer edge surface of the nut The system has a plane, the plane is provided with a plurality of mounting holes, and the mounting hole is connected to the through hole and is engaged with the rolling groove (9 a reflow element is composed of a cover member and a base; a door type, the two ends of the door type are respectively defined as a first leg portion, defined as a first connecting portion between the two first leg portions, the cover member is provided with a passing of the first leg portion and the a first connecting portion of the first connecting portion; the base is generally a gate-shaped type, and the two ends of the door-shaped portion are respectively defined as a second leg portion, and the second connecting portion is defined between the two second leg portions, The base is provided with two through the second leg and the second connection The second half of the flow path; | wherein the two first leg portions and the two second leg portions are respectively combined into two leg portions, and the first connecting portion and the second connecting portion are combined into a connecting portion, the two legs The first half flow channel and the second half flow channel system respectively form a return flow path, and the two ends of the return flow path respectively engage with the load path to form a circulation path, and the circulation path a plurality of the rolling members are disposed; wherein the first leg portions are respectively provided with a first side surface, a second side surface, a first plane and a second plane, wherein the first side surface and the first plane system are connected to each other and Having an angle, the second side and the second plane are coupled to each other and have an angle therebetween; the first side and the first plane form a first stop, 10121513^^^^ A〇101 ^ 12 1 / ^· 20 1 1012048840-0 Correction 42426 The first stop portion and the first surface and the second plane system constitute a second stop portion of the second stop portion on both sides of the first half flow channel; wherein, the two second leg portions Each of which is provided with a third side, a fourth side second plane and a fourth plane, the third side The third planes are connected to each other with an angle therebetween, and the fourth side and the fourth plane are connected to each other with an angle Between the third side and the third plane, and the first abutting portion is formed. The fourth side surface and the fourth plane system form a second abutting portion; the first abutting portion and the second abutting portion are located on both sides of the second half flow channel; Wherein the '###### is disposed in the first portion, and the second portion is disposed opposite to the second abutting portion. A recirculating ball screw as described in claim i, wherein the included angle is between 80 and 1 degree. The recirculating ball _, as described in claim 2, wherein the (four) angle is about 90 degrees. Page 13 of 2 Page 1〇1215^ Single Number A〇101 1012048840-0