CN219082186U - Ball sleeving mechanism for assembling steel balls in ball screw - Google Patents
Ball sleeving mechanism for assembling steel balls in ball screw Download PDFInfo
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- CN219082186U CN219082186U CN202320162108.5U CN202320162108U CN219082186U CN 219082186 U CN219082186 U CN 219082186U CN 202320162108 U CN202320162108 U CN 202320162108U CN 219082186 U CN219082186 U CN 219082186U
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Abstract
The utility model discloses a ball fitting mechanism for assembling steel balls in a ball screw, which comprises the following components: the ball inlet piece and the ball outlet piece are fixedly sleeved on the outer side of the ball inlet piece, a ball inlet groove is formed in the ball inlet piece, a ball outlet groove extending spirally along the circumference of the ball inlet piece is formed in the outer surface of the ball inlet piece, the lower end of the ball inlet groove is butted and communicated with the upper end of the ball outlet groove, a ball outlet hole is formed in the ball outlet piece, and the lower end of the ball outlet groove is butted with the ball outlet hole; when the steel ball is assembled, the steel ball enters the ball inlet piece from the ball inlet groove, enters the ball outlet hole after passing through the ball outlet groove, and enters the threaded groove of the screw nut after passing through the ball outlet hole. According to the ball screw assembly device, the structure of the involution ball sleeving mechanism is designed, so that steel balls can smoothly roll into the thread channels of the screw along the ball inlet groove and the ball outlet groove, the accuracy of the number of the steel balls in the ball screw is ensured, and the primary qualification rate of the ball screw assembly is further improved.
Description
Technical Field
The utility model relates to the field of ball screws, in particular to a ball sleeving mechanism for assembling steel balls in a ball screw.
Background
The ball screw is a transmission element most commonly used on tool machines and precision machines, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and simultaneously has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipment and precision instruments due to their small frictional resistance.
When the screw nut clamping is sleeved with the ball, the reverser is arranged on the screw nut, and the steel ball can move infinitely in the middle of the screw nut, but the design increases great difficulty in assembling the steel ball on an automatic line, the ball clamping can often occur in the production process, the steel ball can not smoothly enter a thread channel of the screw nut, the phenomenon of fewer balls occurs in the assembled product, and the surface of the steel ball can be scratched when the ball poking tool is used for dredging the steel ball, so that the qualification rate and the production efficiency of a final finished product are affected.
Disclosure of Invention
According to the ball feeding mechanism, the structure of the involution ball feeding mechanism is designed, the problem that the ball feeding mechanism is easy to clamp balls is solved, and steel balls can smoothly roll into the threaded channels of the screw nut along the ball feeding grooves and the ball discharging grooves, so that the accuracy of the number of the steel balls in the ball screw is ensured, and the primary qualification rate of the ball screw assembly is further improved.
The technical scheme adopted for solving the technical problems is as follows: a snap-in ball mechanism for assembling a steel ball in a ball screw, comprising: the ball inlet piece and the ball outlet piece are fixedly sleeved on the outer side of the ball inlet piece, a ball inlet groove is formed in the ball inlet piece, a ball outlet groove extending spirally along the circumference of the ball inlet piece is formed in the outer surface of the ball inlet piece, the lower end of the ball inlet groove is butted and communicated with the upper end of the ball outlet groove, a ball outlet hole is formed in the ball outlet piece, and the lower end of the ball outlet groove is butted with the ball outlet hole; when the steel ball is assembled, the steel ball enters the ball inlet piece from the ball inlet groove, enters the ball outlet hole after passing through the ball outlet groove, and enters the threaded groove of the screw nut after passing through the ball outlet hole.
Further, the ball inlet groove and the ball outlet groove are at least two and are in butt joint one by one, and the length and the spiral radian of the ball outlet groove are different.
Further, the connecting end of the ball outlet groove and the ball outlet hole has the same inclination angle as the ball outlet hole.
Further, the tail end of the ball outlet piece is provided with a positioning piece which is connected with the screw rod in a matching way.
Compared with the prior art, the utility model has the advantages that: the structure of the involution ball sleeving mechanism is designed, so that steel balls can smoothly roll into a threaded channel of a screw nut along a ball inlet groove and a ball outlet groove, the accuracy of the number of the steel balls in the ball screw is ensured, and the primary qualification rate of the ball screw assembly is further improved; in addition, the ball inlet piece is provided with a plurality of ball inlet grooves and ball outlet grooves, so that the screw thread grooves at different positions on the screw nut can be simultaneously provided with steel balls; on the other hand, the positioning piece is arranged at the tail end of the ball outlet piece, and can fix the position between the ball closing and sleeving mechanism and the screw rod, so that the screw nut can smoothly move between the ball closing and sleeving mechanism and the screw rod.
Drawings
FIG. 1 is a schematic view of a ball-engaging mechanism for assembling a ball in a ball screw according to the present utility model;
FIG. 2 is a schematic view of the structure of the ball inlet provided by the utility model;
FIG. 3 is a cross-sectional view of a snap-in bead mechanism provided by the present utility model;
FIG. 4 is a schematic structural view of a ball-engaging mechanism with a lead screw and a nut provided by the utility model;
fig. 5 is a cross-sectional view of the bead fitting mechanism with a nut provided by the utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown, a snap-in ball mechanism for assembling a steel ball in a ball screw, comprising: the ball inlet 110 and the ball outlet 120 are fixedly sleeved on the outer side of the ball inlet 110, the ball inlet 110 is cylindrical, and the ball outlet 120 is hollow cylindrical. Four ball entering grooves 111 which are uniformly distributed along the circumferential direction are formed in the side wall of the ball entering piece 110, the ball entering grooves 111 extend along the axial direction of the ball entering piece 110, and the ball entering ends of the steel balls of the ball entering grooves 111 are positioned at the upper end part of the ball entering piece 110; four ball outlet grooves 112 are further formed in the side wall of the ball inlet piece 110, the ball outlet grooves 112 are in butt joint with the ball inlet grooves 111 in a one-to-one correspondence mode, the ball outlet grooves 111 are communicated with the ball outlet grooves 112, steel balls can move into the ball outlet grooves 112 from the ball inlet grooves 111, the ball outlet grooves 112 extend in a spiral mode along the circumference of the ball inlet piece 110, and each ball outlet groove 112 has different spiral radians and different lengths. Four ball outlet holes 121 corresponding to the tail ends of the ball outlet grooves 112 are formed in the side wall of the ball outlet piece 120, the inclination angle of the ball outlet holes 121 is the same as that of the tail ends of the ball outlet grooves 112, positioning pieces 122 which are connected with the screw rod 220 in a matched mode are arranged at the tail ends of the ball outlet piece 120, the positioning pieces 122 are protrusions on the outer wall of the end portion of the ball outlet piece 120, two positioning pieces 122 are arranged oppositely, and the positioning pieces 122 can be clamped into grooves in the end portion of the screw rod 220.
When steel balls are assembled, the nut 210 is sleeved on the outer side of the ball outlet piece 120, a plurality of steel balls enter the ball outlet piece 110 from the four ball inlet grooves 111 respectively, then move into the corresponding ball outlet grooves 112 from the tail ends of the four ball inlet grooves 111, move into the corresponding ball outlet holes 121 after passing through the ball outlet grooves 112 with different lengths and radians, and enter threaded grooves in different positions of the nut 210 after passing through the ball outlet holes 121, so that one-time quick and efficient installation of the steel balls in the nut 210 is realized. After the steel balls in the screw 210 are installed, the screw 210 is slid down along the outer wall of the ball outlet 120, so that the screw 210 moves from the ball outlet 120 to the screw 220, and the ball screw is assembled.
The scope of the present utility model includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the utility model.
Claims (4)
1. A snap-in ball mechanism for assembling a ball in a ball screw, comprising: the ball feeding device comprises a ball feeding piece (110) and a ball discharging piece (120) fixedly sleeved on the outer side of the ball feeding piece (110), wherein a ball feeding groove (111) is formed in the ball feeding piece (110), a ball discharging groove (112) extending spirally along the circumference of the ball feeding piece is formed in the outer surface of the ball feeding piece (110), the lower end of the ball feeding groove (111) is butted and communicated with the upper end of the ball discharging groove (112), a ball discharging hole (121) is formed in the ball discharging piece (120), and the lower end of the ball discharging groove (112) is butted with the ball discharging hole (121); when the steel ball is assembled, the steel ball enters the ball entering piece (110) from the ball entering groove (111), enters the ball outlet hole (121) after passing through the ball outlet groove (112), and enters the threaded groove of the screw nut (210) after passing through the ball outlet hole (121).
2. The ball engaging and sleeving mechanism according to claim 1, wherein the ball inlet grooves (111) and the ball outlet grooves (112) are at least two and are in one-to-one butt joint, and the ball outlet grooves (112) are different in length and spiral radian.
3. The snap-in ball mechanism of claim 1, wherein the connection end of the ball outlet groove (112) and the ball outlet hole (121) has the same inclination angle as the ball outlet hole (121).
4. The ball fitting mechanism according to claim 1, wherein the end of the ball outlet member (120) is provided with a positioning member (122) cooperatively connected with the screw (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162108.5U CN219082186U (en) | 2023-01-17 | 2023-01-17 | Ball sleeving mechanism for assembling steel balls in ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162108.5U CN219082186U (en) | 2023-01-17 | 2023-01-17 | Ball sleeving mechanism for assembling steel balls in ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219082186U true CN219082186U (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320162108.5U Active CN219082186U (en) | 2023-01-17 | 2023-01-17 | Ball sleeving mechanism for assembling steel balls in ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219082186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118123458A (en) * | 2024-05-10 | 2024-06-04 | 豫北转向系统(新乡)股份有限公司 | High-efficient assembly device of electric mechanical circulation ball steering gear ball screw |
-
2023
- 2023-01-17 CN CN202320162108.5U patent/CN219082186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118123458A (en) * | 2024-05-10 | 2024-06-04 | 豫北转向系统(新乡)股份有限公司 | High-efficient assembly device of electric mechanical circulation ball steering gear ball screw |
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