CN215881268U

CN215881268U - Headstock for precisely machining threaded sleeve

Info

Publication number: CN215881268U
Application number: CN202122263461.6U
Authority: CN
Inventors: 钱潘平
Original assignee: ZHEJIANG QUANSHUN MACHINE TOOL CO Ltd
Current assignee: ZHEJIANG QUANSHUN MACHINE TOOL CO Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-22
Anticipated expiration: 2031-09-17

Abstract

The utility model provides a headstock for precisely machining a threaded sleeve, and belongs to the technical field of polishing machine tools. The novel numerical control gear box comprises a shell, wherein a servo motor and a main shaft are arranged on the upper side of the shell side by side, a speed reducer is coaxially arranged on an output shaft of the servo motor, the output shaft of the speed reducer is coaxially connected with a driving gear, a driven gear is sleeved on the outer side of the main shaft, the driving gear and the driven gear are arranged side by side and are meshed with each other, and a tip is arranged at one end of the main shaft. The utility model drives the main shaft and the tip to rotate through the servo motor to form a three-shaft linkage cylindrical grinding machine grinding tool. In the utility model, the servo motor rotates through the driving gear, the driven gear and the main shaft on the inner side of the driving gear and the driven gear, so that the spiral transmission of the tip is realized. The three-axis linkage mechanism can realize zero clearance, no transmission error, no return error and high transmission precision.

Description

Headstock for precisely machining threaded sleeve

Technical Field

The utility model belongs to the technical field of polishing machine tools, and relates to a headstock for precisely processing a threaded sleeve.

Background

In the eighteenth century, grinding machines were developed which could grind parts such as timepieces and sewing machines in order to quickly process these parts. The grinding machine is formed by additionally arranging the grinding head on the existing machine tools such as a lathe, a planer and the like, and the grinding machine is simple in structure, easy to vibrate during grinding and low in rigidity of the grinding head. With the progress of the technology, the grinding machine is more and more precise to work, and the application range is wider and wider. In the prior art, a machining tool for a threaded sleeve has a gap, an error exists in a transmission process, transmission precision is low, and an operator is required to have high skills to grind a precise workpiece.

Disclosure of Invention

The utility model aims to solve the problems and provides a headstock for precisely machining a threaded sleeve.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a headstock for precision finishing thread bush, includes the casing, the casing upside set up servo motor and main shaft side by side, the coaxial speed reducer that sets up of servo motor output shaft, speed reducer output shaft coaxial coupling driving gear, the main shaft outside cup joint driven gear, driving gear and driven gear set up side by side, and driving gear and driven gear interlock each other, main shaft one end set up top.

In the headstock for precisely machining the threaded sleeve, the main shaft is provided with the through hole along the axial direction, the through hole is provided with the first mounting hole at the position close to the opening on the surface of the machine shell, the first mounting hole is in a structure with a large opening end and a small inner side, and the center is arranged in the first mounting hole.

In the headstock for precisely machining the threaded sleeve, the shell is provided with a second mounting hole, a first annular seat and a second annular seat are sequentially arranged on the inner side of the second mounting hole from the opening end to the inside, and the spindle is sleeved on the inner sides of the first annular seat and the second annular seat.

In the head for precisely machining the threaded sleeve, a bearing is arranged between the main shaft and the first annular seat, and/or a bearing is arranged between the main shaft and the second annular seat.

In the above-mentioned head for precision machining threaded sleeves, a clearance zone is provided between the first annular seat and the second annular seat.

In the headstock for precisely machining the threaded sleeve, the tail end of the spindle extends out of the second annular seat, and a limiting part is sleeved on a part of the tail end of the spindle, which extends out of the second annular seat.

In the headstock for precisely machining the threaded sleeve, the part of the tail end of the spindle, which extends out of the second annular seat, is sleeved with the thrust bearing.

In the headstock for precisely machining the threaded sleeve, the open end of the shell is provided with a third annular seat, and a driven gear accommodating cavity is formed in the area between the first annular seat and the third annular seat.

In the headstock for precisely machining the threaded sleeve, the outer side of the main shaft is provided with the annular bulge, and the driven gear is fixedly arranged on the outer side of the annular bulge.

In the headstock for precisely machining the threaded sleeve, the axial leads of the servo motor, the speed reducer and the driving gear are superposed.

Compared with the prior art, the utility model has the advantages that:

the utility model drives the main shaft and the tip to rotate through the servo motor to form a three-shaft linkage cylindrical grinding machine grinding tool. The three-axis linkage mechanism can realize zero clearance, no transmission error, no return error and high transmission precision. In the utility model, the servo motor rotates through the driving gear, the driven gear and the main shaft on the inner side of the driving gear and the driven gear, so that the spiral transmission of the tip is realized.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the spindle.

Fig. 3 is a structural schematic view of the second mounting hole.

Fig. 4 is a schematic view of the mounting position of the bearing.

In the figure: the device comprises a machine shell 1, a servo motor 2, a main shaft 3, a speed reducer, a driving gear 5, a driven gear 6, a through hole 7, a first mounting hole 8, a tip 9, a second mounting hole 10, a first annular seat 11, a second annular seat 12, a bearing 13, a gap area 14, a limiting part 15, a thrust bearing 16, a third annular seat 17, a driven gear accommodating cavity 18 and an annular bulge 19.

Detailed Description

The present invention is further illustrated by the following specific examples.

As shown in fig. 1-4, a headstock for precisely machining a threaded sleeve comprises a machine shell 1, a servo motor 2 and a spindle 3 are arranged on the upper side of the machine shell 1 side by side, a speed reducer 4 is coaxially arranged on an output shaft of the servo motor 2, an output shaft of the speed reducer 4 is coaxially connected with a driving gear 5, a driven gear 6 is sleeved on the outer side of the spindle 3, the driving gear 5 and the driven gear 6 are arranged side by side, the driving gear 5 and the driven gear 6 are meshed with each other, and a tip 9 is arranged at one end of the spindle 3.

In the embodiment, the servo motor 2 drives the main shaft 3 and the tip 9 to form a three-axis linkage cylindrical grinding machine grinding tool. The structure can realize no clearance, no transmission error, no return error and high transmission precision. The servo motor 2 drives the main shaft 3 and the tip 9 to realize spiral transmission.

Preferably, the main shaft 3 is provided with a through hole 7 along the axial direction, a first mounting hole 8 is arranged at an opening of the through hole 7 close to the surface of the machine shell, the first mounting hole 8 is in a structure with a large opening end and a small inner side, and a tip 9 is arranged in the first mounting hole 8. The center 9 is sleeved in a first mounting hole 8 of the through hole 7, which is close to the opening of the surface of the machine shell. The shape is a first mounting hole 8 with a large opening end and a small inner side, which is convenient for firmly fixing the center 9.

Preferably, the casing 1 is provided with a second mounting hole 10, a first annular seat 11 and a second annular seat 12 are sequentially arranged from the open end to the inside of the second mounting hole 10, and the spindle 3 is sleeved on the inside of the first annular seat 11 and the second annular seat 12.

Preferably, a bearing 13 is arranged between the main shaft 3 and the first annular seat 11, and/or a bearing 13 is arranged between the main shaft 3 and the second annular seat 12. Bearings 13 are arranged between the first annular seat 11 and the second annular seat 12 and the spindle 3, so that the spindle 3 can rotate conveniently.

Preferably, a clearance area 14 is provided between said first annular seat 11 and said second annular seat 12. A clearance area 14 is arranged between the first annular seat 11 and the second annular seat 12 for fixing the spindle 3, and the friction force of the side wall of the second mounting hole 10 to the spindle 3 is reduced.

Preferably, the tail end of the spindle 3 extends out of the second annular seat 12, and a limiting member 15 is sleeved on a portion of the tail end of the spindle 3 extending out of the second annular seat 12. The tail end of the main shaft 3 is fixed on the second annular seat 12 through a limiting piece 15, so that the firmness of the main shaft 3 is strengthened.

Preferably, the thrust bearing 16 is sleeved on the part of the tail end of the main shaft 3 extending out of the second annular seat 12. The rear end of the spindle 3 is fixed to the second annular seat 12 by a thrust bearing 16 so as not to be disengaged from the second mounting hole 10 even if the spindle 3 is rotated.

Preferably, a third annular seat 17 is arranged at the opening end of the casing 1, and a driven gear accommodating cavity 18 is formed in the area between the first annular seat 11 and the third annular seat 17. A third annular seat 17 at the opening of the housing 1 fixes the main shaft 3 in the second mounting hole 10, while fixing the driven gear 6 in the third annular seat 17.

Preferably, an annular protrusion 19 is arranged on the outer side of the main shaft 3, and the driven gear 6 is fixedly arranged on the outer side of the annular protrusion 19. The main shaft 3 is sleeved on the inner side of the driven gear 6 through the annular bulge 19 on the outer side of the main shaft, so that the driven gear 6 and the main shaft 3 on the inner side of the driven gear are driven through the driving gear 5, and spiral transmission is achieved.

Preferably, the axes of the servo motor 2, the speed reducer 4 and the driving gear 5 are coincident. The axial leads of the servo motor 2, the speed reducer 4 and the driving gear 5 are overlapped, and the structure can realize no clearance, no transmission error, no return error and high transmission precision. The main shaft 3 and the tip 9 are driven by the servo motor 2 conveniently, and spiral transmission is realized.

The working process of the embodiment is as follows: the servo motor 2 rotates through the driving gear 5, the driven gear 6 and the main shaft 3 on the inner side of the driving gear and the driven gear to realize the spiral transmission of the tip 9.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a headstock for precision finishing thread bush, its characterized in that includes casing (1), casing (1) upside set up servo motor (2) and main shaft (3) side by side, servo motor (2) output shaft coaxial set up speed reducer (4), speed reducer (4) output shaft coaxial coupling driving gear (5), main shaft (3) outside cup joint driven gear (6), driving gear (5) and driven gear (6) set up side by side, and driving gear (5) and driven gear (6) interlock each other, main shaft (3) one end set up top (9).

2. The headstock for precision machining of threaded sleeves according to claim 1, wherein the spindle (3) is provided with a through hole (7) in the axial direction, the through hole (7) is provided with a first mounting hole (8) near the opening of the surface of the machine shell, the first mounting hole (8) is shaped in a structure with a large opening end and a small inner side, and a tip (9) is arranged in the first mounting hole (8).

3. The headstock for precision machining threaded sleeves according to claim 1, wherein the housing (1) is provided with a second mounting hole (10), a first annular seat (11) and a second annular seat (12) are sequentially arranged inside the second mounting hole (10) from the open end to the inside, and the spindle (3) is sleeved inside the first annular seat (11) and the second annular seat (12).

4. Head for precision machining of threaded sleeves according to claim 3, characterized in that a bearing (13) is provided between the spindle (3) and the first annular seat (11) and/or a bearing (13) is provided between the spindle (3) and the second annular seat (12).

5. A head for precision machining threaded sleeves according to claim 3, characterized in that a clearance zone (14) is provided between said first annular seat (11) and said second annular seat (12).

6. A head for precision machining of threaded sleeves according to claim 3, characterized in that the tail end of the spindle (3) protrudes from the second annular seat (12), and a stop (15) is sleeved on the portion of the tail end of the spindle (3) protruding from the second annular seat (12).

7. Head for precision machining of threaded sleeves according to claim 6, characterized in that the portion of the tail end of the spindle (3) projecting from the second annular seat (12) is fitted in a thrust bearing (16).

8. A head for precision machining threaded sleeves according to claim 3, characterized in that said open end of the casing (1) is provided with a third annular seat (17), the area between said first (11) and third (17) annular seats forming a driven gear housing (18).

9. Head for precision machining of threaded sleeves according to claim 1, characterized in that the spindle (3) is provided on the outside with an annular projection (19), the driven gear (6) being fixed on the outside of the annular projection (19).

10. The headstock for precision machining of threaded sleeves according to claim 1, wherein the axes of the servomotor (2), reducer (4) and drive gear (5) coincide.