CN211589236U

CN211589236U - Double-workbench floating positioning mechanism

Info

Publication number: CN211589236U
Application number: CN202020226959.8U
Authority: CN
Inventors: 陈志强; 刘一冉; 李轩; 蒋林
Original assignee: Chongqing Machine Tool Group Co Ltd
Current assignee: Chongqing Machine Tool Group Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-09-29
Anticipated expiration: 2030-02-28

Abstract

The utility model belongs to the field of mechanical equipment, and relates to a double-workbench floating positioning mechanism, which comprises an oil cylinder base fixedly connected with a bed body base, wherein the upper end of the oil cylinder base is fixedly provided with a positioning seat, and the interior of the oil cylinder base is also provided with a piston rod in a matching way; a rotating shaft is fixedly arranged at one end of the piston rod, which is far away from the oil cylinder base, an end face ball bearing is sleeved on the rotating shaft, one end, which is far away from the rotating shaft, of the end face ball bearing is connected with a supporting shaft through a fastener, a thrust ball bearing is arranged at one end, which is far away from the end face ball bearing, of the supporting shaft, and the thrust ball bearing is connected with a positioning flange connected with the rotary table; a positioning sleeve is fixedly arranged at one end of the positioning seat far away from the oil cylinder base; the utility model is used for realize the unsteady location after changing of two workstation lathe when changing the position, its simple structure, positioning accuracy is high, and stability and good reliability have realized the fast and stable when gyration, and it is high to add positioning accuracy in man-hour, purpose that the uniformity is good.

Description

Double-workbench floating positioning mechanism

Technical Field

The utility model belongs to the mechanical equipment field relates to a two workstation positioning mechanism that floats.

Background

At present, most machine tools on the market adopt a single working table, such as common gear grinding machines, gear hobbing machines and the like. In the machining process, actions such as clamping, tool setting and the like are required before each workpiece is machined, so that the auxiliary time is long, and the high-efficiency requirement of a user on a machining machine tool cannot be completely met. The double-workbench machine tool can complete the installation and tooth alignment of the workpiece on the other station while processing on one station, and can process the next workpiece only by rotating and transposition after the previous workpiece is processed, so that the auxiliary time is greatly reduced, and the production efficiency is improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a two workstation positioning mechanism that floats for realize the unsteady and location after the transposition of two workstation lathe when the transposition, fast and stable when solving the gyration, positioning accuracy is high during processing, the key technical problem that the uniformity is good.

In order to achieve the above purpose, the utility model provides a following technical scheme: the double-workbench floating positioning mechanism is arranged on a bed base of the machine tool, a turntable is arranged on one end of the machine tool far away from the bed base in a matching manner on the machine tool bed, a rotary driving mechanism is arranged on the turntable and comprises an oil cylinder base fixedly connected with the bed base, a positioning seat is fixedly arranged at the upper end of the oil cylinder base, a piston rod is also arranged in the oil cylinder base in a matching manner, and the oil cylinder base, the positioning seat and the piston rod are assembled into a closed oil cylinder;

a rotating shaft is fixedly installed on one end, far away from the oil cylinder base, of the piston rod, an end face ball bearing is sleeved on the rotating shaft, one end, far away from the rotating shaft, of the end face ball bearing is connected with a supporting shaft through a fastener, a thrust ball bearing is arranged at one end, far away from the end face ball bearing, of the supporting shaft, the thrust ball bearing is connected with a positioning flange, and the positioning flange is fixedly connected with the rotary table;

the positioning seat is also fixedly provided with a positioning sleeve at one end far away from the oil cylinder base.

Optionally, one end of the positioning flange close to the support shaft is further connected with a rotary sleeve, and the rotary sleeve and the positioning flange are connected with the rotary table in a matched mode through screws.

Optionally, a cylindrical roller bearing and a self-lubricating bearing are arranged between the rotary sleeve and the support shaft.

Optionally, the rotary sleeve is matched with the positioning sleeve, and a self-lubricating bearing is arranged between the positioning sleeve and the rotary sleeve.

Optionally, a sealing plug, a sealing ring and a plug are installed in the oil cylinder in a matched manner, and a pipe joint for oil inlet and outlet and a pressure measuring joint for measuring oil pressure are further arranged.

Optionally, one end of the piston rod close to the end face ball bearing is provided with a symmetrical through hole for installing a rotating shaft, the rotating shaft is clamped in the symmetrical through hole, and the two ends of the piston rod are provided with clamping rings in a matching mode.

Optionally, the end face ball bearing is connected with a support shaft through a locking nut, and a positioning nut and an anti-rotation screw are further mounted at one end of the support shaft close to the locking nut, so that the vertical position in the movement process is prevented from changing.

Optionally, a lower end toothed disc is arranged on the end surface of the machine tool body far away from the base of the machine tool, an upper end toothed disc is arranged on the end surface of the rotary table close to the machine tool body, and the upper end toothed disc and the lower end toothed disc are arranged in a matched mode.

The beneficial effects of the utility model reside in that:

the utility model discloses two workstation positioning mechanism that floats for realize the location after the unsteady and transposition of two workstation lathe when the transposition, its simple structure, positioning accuracy is high, and stability and reliability are very good, and fast and stable when having realized the gyration adds the high positioning accuracy of man-hour, the key purpose that the uniformity is good.

Additional advantages, objects, and features of the invention 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 invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of the double-worktable floating positioning mechanism of the present invention;

fig. 2 is a side view of the floating positioning mechanism of the double-workbench of the present invention.

Reference numerals: the device comprises an oil cylinder base 1, a piston rod 2, a positioning seat 3, a positioning sleeve 4, a supporting shaft 5, a rotary sleeve 6, a positioning flange 7, a positioning nut 8, an anti-rotation screw 9, an end face ball bearing 10, a pressure measuring joint 11, a pipe joint 12, a plug 13, a sealing plug 14, a rotating shaft 15, a locking nut 16, a cylindrical roller bearing 17, a thrust ball bearing 18, a lower end fluted disc 19, an upper end fluted disc 20, a sealing ring 21, a clamping ring 22, a self-lubricating bearing 23 and a rotary table 24.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for better explanation of the embodiments of the present invention, some components and structures in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Please refer to fig. 1-2, which are a double-workbench floating positioning mechanism, installed on a bed base of a machine tool, a turntable 24 is installed on the machine tool body on one end of the machine tool far from the bed base in a matching manner, a rotary driving mechanism is installed on the turntable 24, a lower end fluted disc 19 is installed on an end surface of the machine tool body far from the bed base, an upper end fluted disc 20 is installed on an end surface of the turntable 24 near to the machine tool body, the upper end fluted disc 20 and the lower end fluted disc 19 are arranged in a matching manner, the double-workbench floating positioning mechanism comprises a cylinder base 1 fixedly connected with the bed base, a positioning seat 3 is fixedly installed on the upper end of the cylinder base 1, a piston rod 2 is also installed inside the cylinder base 1 in a matching manner, the piston rod 2 penetrates through the positioning seat 3, the cylinder base 1, the positioning seat 3 and the piston rod 2, a pipe joint 12 for oil inlet and outlet and a pressure measuring joint 11 for measuring oil pressure are also arranged; one end of the piston rod 2 close to the end face ball bearing 10 is provided with a symmetrical through hole for installing a rotating shaft 15, the rotating shaft 15 is clamped in the symmetrical through hole, and two ends of the rotating shaft are provided with clamping rings 22 in a matching way; an end face ball bearing 10 is sleeved on the rotating shaft 15, one end of the end face ball bearing 10, far away from the rotating shaft 15, is connected with the supporting shaft 5, the lifting and pulling positions of the whole mechanism can be adjusted through the screwing depth of the threaded end of the end face ball bearing 10, and the upper end face fluted disc and the lower end face fluted disc are meshed in place and tensioned during positioning; after adjustment, the position is fixed through a locking nut 16, meanwhile, the movable ball head of the end face ball bearing 10 ensures that the assembly connection of the piston rod 2 and the support shaft 5 is easy, and no lateral force is generated, and a positioning nut 8 and an anti-rotation screw 9 are further arranged at one end of the support shaft 5 close to the locking nut 16, so that the vertical position is prevented from changing in the movement process; the end, far away from the end face ball bearing 10, of the support shaft 5 is provided with a thrust ball bearing 18 so as to bear the weight of a rotary table 24 and ensure easy and flexible rotation, the thrust ball bearing 18 is connected with a positioning flange 7, and the positioning flange 7 is fixedly connected with the rotary table 24; the positioning seat 3 is further fixedly provided with a positioning sleeve 4 at one end far away from the oil cylinder base 1, the positioning flange 7 is further connected with a rotary sleeve 6 at one end close to the supporting shaft 5, and the rotary sleeve 6 and the positioning flange 7 are connected with the rotary table 24 in a matched manner through screws.

In this embodiment, be equipped with cylindrical roller bearing 17 and self-lubricating bearing 23 between gyration cover 6 and the back shaft 5, gyration cover 6 matches the setting with position sleeve 4, and is equipped with self-lubricating bearing 23 between position sleeve 4 and the gyration cover 6 to carry out radial positioning, guarantee that revolving stage 24 can not incline after floating, and the rotation that can relax in a flexible way.

The utility model discloses when needing to replace, the hydro-cylinder promotes back shaft 5 through piston rod 2 and rises to lift whole revolving stage 24, make upper end fluted disc 20 throw off with lower end

fluted disc

19, 24 top of revolving stage takes servo motor's rotary drive mechanism to make 24 gyration of revolving stage, two workstations on the revolving stage 24 accomplish the transposition, then the hydro-cylinder release, whole revolving stage 24 descends, upper and lower end fluted disc meshing targets in place, hydro-cylinder rethread piston rod leans on the taut revolving stage of hydraulic pressure force to accomplish the location, and strengthens the rigidity. The indexing precision of the high-precision end fluted disc can reach within +/-3 'and the repeated positioning precision can reach within +/-1', so that the machining precision consistency of the two working tables can be reliably ensured.

The utility model is used for realize the unsteady and location after the transposition of two workstation lathe when the transposition, its simple structure, positioning accuracy is high, and stability and reliability are very good, and fast and stable when having realized the gyration adds the precision height in man-hour, unanimous good key purpose.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. Double-workbench floating positioning mechanism installs on the lathe bed base of lathe, the lathe is kept away from one of lathe bed base and is served to match on the lathe bed and be provided with the revolving stage, installs rotary driving mechanism, its characterized in that on the revolving stage: the oil cylinder device comprises an oil cylinder base fixedly connected with a lathe bed base, wherein a positioning seat is fixedly arranged at the upper end of the oil cylinder base, a piston rod is also arranged in the oil cylinder base in a matched manner, and the oil cylinder base, the positioning seat and the piston rod are assembled into a closed oil cylinder;

the end, far away from the rotating shaft, of the end face ball bearing is connected with a supporting shaft through a fastener, the end, far away from the rotating shaft, of the supporting shaft is provided with a thrust ball bearing, the thrust ball bearing is connected with a positioning flange, and the positioning flange is fixedly connected with the rotary table;

and a positioning sleeve is fixedly arranged at one end of the positioning seat far away from the oil cylinder base.

2. The dual stage floating positioning mechanism of claim 1, wherein: the positioning flange is also connected with a rotary sleeve at one end close to the supporting shaft, and the rotary sleeve and the positioning flange are connected with the rotary table in a matched manner through screws.

3. The dual stage floating positioning mechanism of claim 2, wherein: and a cylindrical roller bearing and a self-lubricating bearing are arranged between the rotary sleeve and the supporting shaft.

4. The dual stage floating positioning mechanism of claim 2, wherein: the rotary sleeve is matched with the positioning sleeve, and a self-lubricating bearing is arranged between the positioning sleeve and the rotary sleeve.

5. The dual stage floating positioning mechanism of claim 1, wherein: the oil cylinder is internally provided with a sealing plug, a sealing ring and a plug in a matching way, and is also provided with a pipe joint for oil inlet and outlet and a pressure measuring joint for measuring oil pressure.

6. The dual stage floating positioning mechanism of claim 1, wherein: the piston rod is provided with a symmetrical through hole for installing a rotating shaft at one end close to the end face ball bearing, the rotating shaft is clamped in the symmetrical through hole, and clamping rings are installed at two ends of the rotating shaft in a matching mode.

7. The dual stage floating positioning mechanism of claim 1, wherein: the end face ball bearing is connected with a supporting shaft through a locking nut, and a positioning nut and an anti-rotation screw are further mounted at one end, close to the locking nut, of the supporting shaft, so that the vertical position in the movement process is prevented from changing.

8. The dual stage floating positioning mechanism of claim 1, wherein: the end face of the machine tool body far away from the base of the machine tool is provided with a lower end fluted disc, the end face of the rotary table close to the machine tool body is provided with an upper end fluted disc, and the upper end fluted disc and the lower end fluted disc are arranged in a matching mode and used for positioning the rotary table after the rotary table rotates in place.