CN217977244U - Miniature ball screw pair combining 3D printing and machining process - Google Patents
Miniature ball screw pair combining 3D printing and machining process Download PDFInfo
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- CN217977244U CN217977244U CN202222076611.7U CN202222076611U CN217977244U CN 217977244 U CN217977244 U CN 217977244U CN 202222076611 U CN202222076611 U CN 202222076611U CN 217977244 U CN217977244 U CN 217977244U
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- ball
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- ball nut
- ball screw
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Abstract
The utility model provides a 3D prints miniature ball that combines with machining technology is vice, and ball nut is small in order to solve current ball is vice, and it is big to adopt ordinary mechanical process manufacturing outer loop structure degree of difficulty, makes the problem that miniature ball is vice can not smooth the operation, the utility model discloses a 3D printing technology prints the ball nut body that has the pearl pipe that returns, uses machining technology to process the screw thread raceway on the ball nut that 3D printed, returns pearl pipe both sides processing two places in ball nut inside and keeps off pearl ware mounting hole, and the pearl ware that keeps off that adopts 3D printing technology to make is installed in two places keeps off pearl ware mounting hole, the utility model discloses operate steadily smoothly, do not have the impact, safe and reliable is applicable to the environment of high-speed, low noise, the utility model discloses ball nut and keep off pearl ware overall dimension little, adopt 3D printing technology low in manufacturing cost, can realize batch production.
Description
Technical Field
The patent of the utility model relates to a vice field of miniature ball especially relates to a 3D prints vice miniature ball that combines with machining technology.
Background
The ball screw pair is increasingly widely applied outside the numerical control machine tool industry, the diameter of a steel ball of the miniature ball screw pair is generally less than or equal to 1mm, the nominal diameter is less than or equal to 6mm, and the ball screw pair is increasingly widely applied in the fields of small-sized medical appliances, electronic products and the like. The micro ball screw pair generally has low requirements on load in the using process of the field, but has higher requirements on operation fluency and noise. Because the ball nut in the ball screw pair is small in size and the difficulty of processing and manufacturing an external circulation structure by adopting a common mechanical process is high, the conventional micro ball screw pair is mostly designed and manufactured by adopting an internal circulation structure. Compared with the internal circulation, the ball screw pair with the external circulation structure has higher operation fluency, and an external circulation micro ball screw pair needs to be designed and manufactured to meet the use requirements of the current special field.
SUMMERY OF THE UTILITY MODEL
The ball screw assembly aims to solve the problems that a ball nut in the existing ball screw assembly is small in size, and the difficulty in machining and manufacturing an external circulation structure by adopting a common mechanical process is high, so that the miniature ball screw assembly cannot smoothly run.
The utility model provides a 3D printing and machining technology combined miniature ball screw pair, including ball, ball nut, steel ball, be equipped with ball in the ball nut, still include back pearl pipe, keep off pearl ware, ball nut is cylindric, and ball nut surface is equipped with two and keeps off pearl ware mounting holes, respectively is equipped with one through two keep off pearl ware mounting holes in ball nut both sides, connect through returning the pearl pipe between two keep off pearl ware;
and a spiral channel formed by the spiral raceway of the ball nut, the ball returning pipe, the ball nut and the ball screw forms a circulating channel of the steel ball.
And one end of the ball blocking device, which is in contact with the ball screw, is an arc-shaped tangent plane.
The ball nut is prepared by 3D printing.
The running track of the steel ball comprises a pitch diameter tangent line and a helix angle direction of a helical raceway of the ball nut.
The utility model discloses the advantage: the utility model relates to a 3D prints miniature ball screw substructure that combines with machining technology characteristics lie in having adopted 3D to print the processing technology and having designed unique steel ball orbit, and the operation is steady smooth, and no impact, safe and reliable is applicable to the environment of high-speed, low noise. The utility model discloses a ball nut and keep off pearl ware overall dimension in the miniature ball screw is vice is little, adopts 3D printing process low in manufacturing cost, can realize batch production.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the bead stopper of the present invention.
Fig. 3 is an explanatory view of the position of the bead returning pipe of the present invention.
Fig. 4 is a perspective view of the nut structure of the present invention.
Fig. 5 is a schematic diagram of the movement track of the steel ball of the present invention.
Fig. 6 is a schematic diagram of the left-side observation of the movement track of the steel ball of the present invention.
Fig. 7 is a schematic view of the top observation of the movement locus of the steel ball of the present invention.
Fig. 8 is a schematic view of the steel ball motion trail of the present invention viewed from the side.
Description of reference numerals:
1-a ball screw; 2-ball nut; 3-a bead stopper; 4-steel ball; 5-a bead returning pipe; 6-ball stopper mounting hole.
Detailed Description
As shown in fig. 1-8, the utility model relates to a 3D printing and machining process combined miniature ball screw pair, including ball screw 1, ball nut 2, steel ball 4, be equipped with ball screw 1 in the ball nut 2, still include ball return pipe 5, keep off pearl ware 3, ball nut 2 is cylindric, ball nut 2 surface is equipped with two keep off pearl ware mounting holes 6, each side is equipped with one keep off pearl ware 3 in ball nut 2 through two keep off pearl ware mounting holes 6, connect through ball return pipe 5 between two keep off pearl ware 3;
and a spiral channel formed by the spiral raceway of the ball nut 2, the ball returning pipe 5, the ball nut 2 and the ball screw 1 forms a circulating channel of the steel ball 4.
And one end of the ball stopper 3, which is in contact with the ball screw 1, is an arc-shaped tangent plane.
The ball nut 2 is prepared by 3D printing.
The running track of the steel ball 4 comprises a pitch diameter tangent line and a helix angle direction of a helical raceway of the ball nut 2.
The body of the miniature ball nut 2 with the ball returning pipe 5 shown in fig. 3 is printed by adopting a 3D printing technology, and then the spiral roller path and the ball stopper mounting hole 6 shown in fig. 4 are processed in a machining mode. The ball stopper 3 shown in fig. 1 is manufactured by a 3D printing method, the ball stopper 3 is installed in two ball stopper installation holes 6 of the ball nut 2 during installation, the ball stopper 3 and the ball nut 2 are glued together by fastening glue, and then the ball screw 1, the ball nut 2 and the steel ball 4 are assembled.
Description of the principle: in order to make the micro ball screw pair satisfy the requirement of smooth operation, the utility model discloses a ball circulation channel smoothly linking up with the spiral raceway has been designed to 2 internal designs of ball nut. Because inside ball nut 2 body was placed in to this passageway in, this special demand can't be realized to the adoption machining mode, this patent has used 3D printing technique to print the ball nut 2 body that has the ball pipe 5 that returns. Because the precision of the 3D printed threaded roller path cannot meet the use requirement, the threaded roller path needs to be machined on the 3D printed ball nut 2 by using a machining process. Two ball blocking device mounting holes 6 are processed on two sides of the ball returning pipe 5 in the ball nut 2, and the ball blocking devices 3 manufactured by adopting the 3D printing technology are mounted in the two ball blocking device mounting holes 6. When the ball screw pair operates, the steel ball 4 enters the ball returning pipe 5 inside the ball nut 2 along the helix lift angle and the pitch diameter tangential direction through the ball stopper 3 on one side, then enters the spiral roller path formed by the ball nut 2 and the ball screw 1 through the ball stopper 3 on the other side, so that reciprocating motion is carried out, the rotary motion of the ball screw 1 is converted into the axial motion of the ball nut 2, or the axial motion of the ball nut 2 is converted into the rotary motion of the ball screw 1, and the effect of high-speed smooth operation can be realized by the steel ball 4 by adopting the unique operation track shown in fig. 5-8.
When in work: the utility model relates to a 3D prints miniature ball screw pair that combines with machining technology when the operation, steel ball 4 keeps off the circular arc tangent plane on the pearl ware 3 through one side and gets into in the inside ball pipe 5 passageway that returns of ball nut 2 from the spiral raceway radial tangent line and the helix angle direction of the ball nut 2 that is shown in fig. 4, then keeps off the circular arc tangent plane on the pearl ware 3 through the opposite side and gets into in the helical coiled passage of ball nut 2 and ball screw 1 formation. In this reciprocating motion, the rotation torque of the ball screw 1 is converted into the axial thrust of the ball nut 2 by the steel ball 4, or the axial thrust of the ball nut 2 is converted into the rotational motion of the ball screw 1, thereby realizing the function of the ball screw assembly.
The utility model relates to a 3D prints miniature ball screw substructure that combines with machining technology characteristics lie in having adopted 3D to print the processing technology and having designed unique steel ball orbit, and the operation is steady smooth, and no impact, safe and reliable is applicable to the environment of high-speed, low noise. The utility model discloses a ball nut 2 and keep off 3 overall dimension of pearl ware in the miniature ball screw is vice are little, adopt 3D printing technology low in manufacturing cost, can realize batch production.
Claims (4)
1. The utility model provides a 3D prints miniature ball screw pair that combines with machining technology, includes ball (1), ball nut (2), steel ball (4), be equipped with ball (1) in ball nut (2), its characterized in that: the ball bearing device is characterized by further comprising a ball returning pipe (5) and ball blocking devices (3), the ball bearing nut (2) is cylindrical, two ball blocking device mounting holes (6) are formed in the surface of the ball bearing nut (2), the two ball blocking devices (3) are respectively arranged on two sides in the ball bearing nut (2) through the two ball blocking device mounting holes (6), and the two ball blocking devices (3) are connected through the ball returning pipe (5);
a spiral channel formed by the spiral raceway of the ball nut (2), the ball returning pipe (5), the ball nut (2) and the ball screw (1) forms a circulating channel of the steel ball (4).
2. The micro ball screw assembly of claim 1, wherein the micro ball screw assembly is manufactured by a 3D printing and machining process, and comprises: one end of the ball blocking device (3) contacting with the ball screw (1) is an arc-shaped tangent plane.
3. The micro ball screw assembly combining 3D printing and machining processes of claim 1, wherein: the ball nut (2) is prepared by 3D printing.
4. The micro ball screw assembly of claim 1, wherein the micro ball screw assembly is manufactured by a 3D printing and machining process, and comprises: the running track of the steel ball (4) comprises a pitch diameter tangent line and a helix angle direction of a helical raceway of the ball nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222076611.7U CN217977244U (en) | 2022-08-08 | 2022-08-08 | Miniature ball screw pair combining 3D printing and machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222076611.7U CN217977244U (en) | 2022-08-08 | 2022-08-08 | Miniature ball screw pair combining 3D printing and machining process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217977244U true CN217977244U (en) | 2022-12-06 |
Family
ID=84257982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222076611.7U Active CN217977244U (en) | 2022-08-08 | 2022-08-08 | Miniature ball screw pair combining 3D printing and machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217977244U (en) |
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2022
- 2022-08-08 CN CN202222076611.7U patent/CN217977244U/en active Active
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