CN213998104U

CN213998104U - Auxiliary device is used in processing of major axis lead screw

Info

Publication number: CN213998104U
Application number: CN202023176652.0U
Authority: CN
Inventors: 胡建东; 陈贤湘; 王权华; 赵永芹; 杨健
Original assignee: Chizhou Bsking Mechanical And Electrical Technology Co ltd
Current assignee: Chizhou Miyou Machine Tool Co.,Ltd.
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-20
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an auxiliary device for long-axis lead screw machining, including work piece lead screw, nut seat, work piece holder, bearing frame and driving motor, the female lead screw runs through the driven gear, the top of the bearing frame inboard is installed with driving motor through bolt fastening, the top of the bearing frame outside is installed with drive gear in a rotating way, the axle center department at bearing frame top is installed with the shaft coupling in a rotating way, the driving motor output end is connected with the drive gear through the shaft coupling fixedly, the drive gear with driven gear meshing; the utility model discloses adding man-hour to the work piece lead screw of major axis, driving the work piece lead screw through the device and removing to support the work piece lead screw, prevent that the work piece lead screw from taking place the slope at the in-process of processing, thereby guaranteed that the axial lead of work piece lead screw remains on same straight line throughout at the in-process of processing, improved the precision that work piece lead screw surface screw thread was seted up.

Description

Auxiliary device is used in processing of major axis lead screw

Technical Field

The utility model relates to a major axis lead screw processing technology field specifically is an auxiliary device is used in major axis lead screw processing.

Background

The ball screw is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency; ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance.

The ball screw consists of a screw rod, a nut, a steel ball, a preforming piece, a reverser and a dust remover. Its function is to convert the rotary motion into a linear motion, which is a further extension and development of the acme screw, the important meaning of this development is to change the bearing from sliding motion to rolling motion.

When the screw rod is processed, threads need to be uniformly arranged on the surface of the screw rod, but for a long-axis screw rod, the following defects exist during the long-axis screw rod processing:

because the length of the long-axis lead screw is long, when the surface of the long-axis lead screw is provided with threads, the long-axis lead screw is easy to incline, so that the axis line of the lead screw cannot be on the same straight line, the threads arranged on the outer wall of the lead screw have errors, and the accuracy of arranging the threads on the surface of the long-axis lead screw is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary device is used in major axis lead screw processing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an auxiliary device for long-axis lead screw machining comprises a workpiece lead screw, a nut seat, a workpiece holder, a bearing seat and a driving motor, wherein a female nut is inserted into the top of the nut seat, a female lead screw is installed on the internal thread of the female nut, the end, located outside the female nut, of the female lead screw is fixedly provided with the workpiece holder through a bolt, the workpiece lead screw penetrates through the workpiece holder and the female lead screw, the top of one side of the nut seat is fixedly provided with the bearing seat through the bolt, the female lead screw penetrates through the bearing seat, the bottom of the outer side of the bearing seat is rotatably provided with a driven gear, the female lead screw penetrates through the driven gear, the top of the inner side of the bearing seat is fixedly provided with the driving motor through the bolt, the top of the outer side of the bearing seat is rotatably provided with a driving gear, and the axle center of the top of the bearing seat is rotatably provided with a coupler, the output end of the driving motor is fixedly connected with the driving gear through the coupler, and the driving gear is meshed with the driven gear.

The outer wall of the female screw rod is provided with a plane, the inner wall of the driven gear is provided with a tangent plane matched with the plane, and the female screw rod is in matched contact with the driven gear through the plane and the tangent plane.

The bearing pressing plate is fixedly installed between the driving motor and the bearing seat through bolts, and the output shaft of the driving motor penetrates through the bearing pressing plate.

The integral female screw rod is of a circular tubular structure, threads matched with the female nut are formed in the outer wall of the female screw rod, and the inner diameter of the female screw rod is larger than the diameter of the cross section of the workpiece screw rod.

The inner diameter of the workpiece holder is larger than the diameter of the cross section of the workpiece lead screw, a threaded hole is formed in one side of the outer wall of the workpiece holder, a fastening bolt is installed in the threaded hole in a threaded mode, and the workpiece holder is fixed on the workpiece lead screw through the fastening bolt and the threaded hole in a matched mode.

The driving motor drives the driving gear through the coupler, and the driving gear drives the female screw rod to rotate at the shaft center of the female screw through the driven gear.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses adding man-hour to the work piece lead screw of major axis, driving the work piece lead screw through the device and removing to support the work piece lead screw, prevent that the work piece lead screw from taking place the slope at the in-process of processing, thereby guaranteed that the axial lead of work piece lead screw remains on same straight line throughout at the in-process of processing, improved the precision that work piece lead screw surface screw thread was seted up.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the utility model in the 40 ° direction;

fig. 2 is a schematic view of the 320 ° direction three-dimensional structure of the present invention;

fig. 3 is a schematic view of the main view of the local cross-section structure of the present invention.

In the figure: 1. a workpiece screw rod; 2. a nut seat; 3. a female nut; 4. a female screw rod; 5. a workpiece holder; 6. a bearing seat; 7. a drive motor; 8. a bearing pressure plate; 9. a coupling; 10. a drive gear; 11. a driven gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an auxiliary device for processing a long-axis lead screw comprises a workpiece lead screw 1, a nut seat 2, a workpiece clamper 5, a bearing seat 6 and a driving motor 7.

Female nut 3 is inserted into the top of nut seat 2, female lead screw 4 is installed on the internal thread of female nut 3, workpiece holder 5 is installed at one end, located outside female nut 3, of female lead screw 4, workpiece holder 1 runs through workpiece holder 5 and female lead screw 4, bearing seat 6 is installed at the top of one side of nut seat 2 through bolt fixing, female lead screw 4 runs through bearing seat 6, driven gear 11 is installed in the bottom rotation outside bearing seat 6, female lead screw 4 runs through driven gear 11, driving motor 7 is installed at the top of the inner side of bearing seat 6 through bolt fixing, driving gear 10 is installed in the top rotation outside bearing seat 6, shaft coupling 9 is installed in the rotation of the shaft center of the top of bearing seat 6, the output end of driving motor 7 is fixedly connected with driving gear 10 through shaft coupling 9, and driving gear 10 is meshed with driven gear 11.

The outer wall of the female screw rod 4 is provided with a plane, the inner wall of the driven gear 11 is provided with a tangent plane matched with the plane, and the female screw rod 4 is in matched contact with the driven gear 11 through the plane and the tangent plane; when the driving motor 7 drives the driven gear 11 to rotate through the driving gear 10, the tangent plane of the inner wall of the driven gear 11 is matched with the plane of the outer wall of the female screw rod 4 so as to drive the female screw rod 4 to rotate, and the female screw rod 4 is pushed to move along the axial lead direction of the female screw nut 3 through the matching of the threads on the surface of the female screw rod 4 and the female screw nut 3.

Wherein, a bearing pressure plate 8 is fixedly arranged between the driving motor 7 and the bearing seat 6 through bolts, and the output shaft of the driving motor 7 penetrates through the bearing pressure plate 8; keep apart driving motor 7 and bearing frame 6 through bearing clamp plate 8, not only made things convenient for driving motor 7's installation, guaranteed driving motor 7's output shaft moreover can with the rotation of bearing frame 6.

Wherein, female screw 4 is whole to be round tubular structure, and female screw 4 outer wall is seted up the screw thread of cooperation female nut 3, and the internal diameter size of female screw 4 is greater than the diameter size of 1 cross-sections of work piece lead screw.

The inner diameter of the workpiece holder 5 is larger than the diameter of the section of the workpiece lead screw 1, a threaded hole is formed in one side of the outer wall of the workpiece holder 5, a fastening bolt is installed in the threaded hole in a threaded manner, the workpiece holder 5 is matched with the threaded hole through the fastening bolt to fix the workpiece lead screw 1, the workpiece lead screw 1 is fixed through the fastening bolt before the workpiece lead screw 1 is driven to move leftwards, and therefore the female lead screw 4 moving leftwards can synchronously drive the workpiece lead screw 1 to move leftwards through the workpiece holder 5; when the position of the female screw rod 4 needs to be adjusted rightwards, the fastening bolt is loosened, then the female screw rod 4 moving rightwards drives the workpiece holder 5 to move rightwards synchronously, and then the workpiece screw rod 1 is driven to move leftwards again.

The driving motor 7 drives the driving gear 10 through the coupler 9, and the driving gear 10 drives the female screw rod 4 to rotate at the axis of the female screw 3 through the driven gear 11.

The working principle is as follows: when the device is used, the height of a female screw rod 4 is adjusted to be the same as that of a workpiece screw rod 1 to be processed, the axial lead of the female screw rod 4 and the axial lead of the workpiece screw rod 1 are located on the same straight line, then the surface of one end of the workpiece screw rod 1 is subjected to thread forming treatment through screw rod processing equipment, one side, provided with threads, of one end of the workpiece screw rod 1 penetrates through a workpiece holder 5 and the female screw rod 4, the workpiece screw rod 1 is fixed through the workpiece holder 5, a driving motor 7 is turned on at the same time, the driving motor 7 drives a driving gear 10 to rotate clockwise through a coupler 9, the female screw rod 4 is driven to rotate anticlockwise at the axis of a female screw 3 through meshing of the driving gear 10 and a driven gear 11, then the female screw rod 4 is driven to move leftwards for a certain distance through matching of the threads on the surface of the female screw rod 4 and the female screw rod 3, the workpiece screw rod 1 is driven to move leftwards at the same time, and the workpiece screw rod 1 is subjected to thread forming treatment synchronously in the leftward movement process of the workpiece screw rod 1; after the end part of the female screw rod 4 is close to the female nut 3, closing the driving motor 7, stopping threading the workpiece screw rod 1, fixing the workpiece screw rod 1, loosening the workpiece holder 5, driving the driving gear 10 to rotate anticlockwise through the driving motor 7, driving the female screw rod 4 to rotate clockwise at the axis of the female nut 3 through the meshing of the driving gear 10 and the driven gear 11, then pushing the female screw rod 4 to move rightwards for a certain distance through the matching of the threads on the surface of the female screw rod 4 and the female nut 3, then continuously fixing the workpiece screw rod 1 by using the workpiece holder 5, then continuously opening the driving motor 7, driving the driving gear 10 to rotate clockwise through the coupling 9 by the driving motor 7, driving the female screw rod 4 to rotate anticlockwise at the axis of the female nut 3 through the meshing of the driving gear 10 and the driven gear 11, and then pushing the female screw rod 4 to move leftwards for a certain distance through the matching of the threads on the surface of the female screw rod 4 and the female nut 3, meanwhile, the workpiece screw rod 1 is driven to move leftwards, and the workpiece screw rod 1 is synchronously threaded in the process of moving leftwards; the working procedures are repeated until the threads on the surface of the whole workpiece screw rod 1 are formed, so that when the workpiece screw rod 1 with a long shaft is machined, the workpiece screw rod 1 is driven to move through the device and is supported, the workpiece screw rod 1 is prevented from inclining in the machining process, the axial lead of the workpiece screw rod 1 is always kept on the same straight line in the machining process, and the accuracy of forming the threads on the surface of the workpiece screw rod 1 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a major axis is auxiliary device for lead screw processing, includes work piece lead screw (1), nut seat (2), work piece holder (5), bearing frame (6) and driving motor (7), its characterized in that: the nut seat is characterized in that a female nut (3) is inserted into the top of the nut seat (2), a female screw rod (4) is installed on the internal thread of the female nut (3), the female screw rod (4) is located at one end of the outside of the female nut (3) and is provided with a workpiece holder (5) through bolt fixing, the workpiece screw rod (1) penetrates through the workpiece holder (5) and the female screw rod (4), a bearing seat (6) is installed at the top of one side of the nut seat (2) through bolt fixing, the female screw rod (4) penetrates through the bearing seat (6), a driven gear (11) is installed at the bottom of the outside of the bearing seat (6) in a rotating mode, the female screw rod (4) penetrates through the driven gear (11), a driving motor (7) is installed at the top of the inner side of the bearing seat (6) through bolt fixing, and a driving gear (10) is installed at the top of the outer side of the bearing seat (6) in a rotating mode, the axle center department at bearing frame (6) top rotates and installs shaft coupling (9), driving motor (7) output passes through shaft coupling (9) with drive gear (10) fixed connection, drive gear (10) with driven gear (11) meshing.

2. The auxiliary device for long axis screw machining according to claim 1, wherein: the outer wall of the female screw rod (4) is provided with a plane, the inner wall of the driven gear (11) is provided with a tangent plane matched with the plane, and the female screw rod (4) is in contact with the driven gear (11) through the plane and the tangent plane in a matched mode.

3. The auxiliary device for long axis screw machining according to claim 1, wherein: a bearing pressing plate (8) is fixedly installed between the driving motor (7) and the bearing seat (6) through bolts, and an output shaft of the driving motor (7) penetrates through the bearing pressing plate (8).

4. The auxiliary device for long axis screw machining according to claim 1, wherein: the whole body of the female screw rod (4) is of a circular tube-shaped structure, the outer wall of the female screw rod (4) is provided with threads matched with the female nut (3), and the inner diameter of the female screw rod (4) is larger than that of the section of the workpiece screw rod (1).

5. The auxiliary device for long axis screw machining according to claim 1, wherein: the inner diameter of the workpiece holder (5) is larger than the diameter of the cross section of the workpiece screw rod (1), a threaded hole is formed in one side of the outer wall of the workpiece holder (5), a fastening bolt is installed on the inner thread of the threaded hole, and the workpiece holder (5) is fixed to the workpiece screw rod (1) through the fastening bolt and the threaded hole in a matched mode.

6. The auxiliary device for long axis screw machining according to claim 1, wherein: the driving motor (7) drives the driving gear (10) through the coupler (9), and the driving gear (10) drives the female screw rod (4) to rotate at the axle center of the female screw (3) through the driven gear (11).