CN213080826U - Vertical transmission structure of vertical lead screw for machine tool - Google Patents
Vertical transmission structure of vertical lead screw for machine tool Download PDFInfo
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- CN213080826U CN213080826U CN202021382030.0U CN202021382030U CN213080826U CN 213080826 U CN213080826 U CN 213080826U CN 202021382030 U CN202021382030 U CN 202021382030U CN 213080826 U CN213080826 U CN 213080826U
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- lead screw
- screw
- speed reducer
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- 230000005570 vertical transmission Effects 0.000 title claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 230000009977 dual effect Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 27
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
A vertical transmission structure of a vertical lead screw for a machine tool comprises a servo motor, a speed reducer and a lead screw on a ram, and is characterized in that after the servo motor is connected with the speed reducer, one end of the lead screw vertically enters the speed reducer and is firmly fixed through a tensioning structure, a needle roller thrust cylindrical roller bearing is accommodated in the circle center of a flange and a supporting seat, the flange and the speed reducer are locked by a locking nut and the lead screw to form a fixed end, the flange and the speed reducer are fixed through screws, and the fixed end is fixed in a dual mode; the thrust angular contact ball bearing and the bearing seat are arranged at the other end of the screw rod through an upper spacer bush and a lower spacer bush to form a support end, and the tail end of the support end is fastened by a locking nut. The vertical transmission of the machine tool can bear larger cutting resistance and reduce the transmission error of an intermediate link. The height of the whole transmission system can be effectively reduced, the transmission of the motor end is close to the support part of the lead screw, and the rigidity of the transmission of the motor end and the stability of the whole transmission are improved. The overall height of the machine tool is reduced, and the applicability of the machine tool products with the same specification is higher.
Description
Technical Field
The utility model relates to a mechanical equipment of processing is made, a lathe is with vertical perpendicular transmission structure to lead screw.
Background
The machine tool is vertically driven by a lead screw, a motor drives a speed reducer in a transmission mode, an output shaft of the speed reducer and a tail end shaft of the lead screw are connected through a coupler for transmission, the motor is directly connected with an output shaft of the motor and the tail end shaft of the lead screw through the coupler for transmission in a direct connection mode, and the transmission mode is applied to high-speed and light machine tools and has high requirements on the motor. In the two transmission modes, the layout mode of the coupler of the motor speed reducer and the lead screw is the same as the transmission direction of the lead screw, namely the vertical direction, a long support needs to be added to the end of the transmission motor arranged vertically, and the height of the support corresponds to the vertical movement stroke of the machine tool. Because the support height is higher, can't be as an organic whole with basic major possession, but make an independent support and basic major possession processing rethread screw fixation respectively, the manual work is scraped during the assembly and is adjusted the installation to connect both ends axle through the shaft coupling and carry out the transmission. In order to ensure that the transmission rigidity reduces the transmission error, the transmission mode coupler has certain deviation rectifying capacity, the coaxiality of two shafts for connection is required to be high, the axial distance deviation is required to be within a tolerance range, and the processing and assembling difficulty of corresponding basic parts is increased; after the motor is vertically installed, the distance between the motor driving end and the supporting end is far under the influence of vertical stroke, so that the vertical cutting rigidity and the cutting resistance of the machine tool are poor. Meanwhile, when the structure is arranged on a ram of a machine tool and used for Z-direction transmission, the height of the whole machine tool can be increased, so that the applicability of the machine tool is poor, the problem is usually solved by sinking an installation foundation of the whole machine, and a large amount of manpower, material resources and construction time are consumed.
Disclosure of Invention
The utility model aims at providing a lathe is with vertical transmission structure to lead screw can reduce the lathe height, save the shaft coupling, eliminate transmission error.
The utility model discloses a vertical transmission structure of vertical to lead screw for lathe, including servo motor, speed reducer, lead screw on the ram, its characterized in that after servo motor links to each other with the speed reducer, lead screw one end enters the speed reducer perpendicularly and firmly fixes through the tight structure that rises, holds the thrust cylinder roller bearing of kingpin in the centre of a circle of ring flange, supporting seat to form the stiff end by lock nut and lead screw locking, fix ring flange and speed reducer through the screw, fix the stiff end with the dual mode; the thrust angular contact ball bearing and the bearing seat are arranged at the other end of the screw rod through an upper spacer bush and a lower spacer bush to form a support end, and the tail end of the support end is fastened by a locking nut.
This kind of lathe of design is with the superiority to the vertical drive structure of lead screw vertically:
1. the end of the machine tool vertical lead screw transmission motor is arranged in the horizontal direction perpendicular to the direction of the lead screw, so that the height of the whole transmission system can be effectively reduced, the transmission of the motor end is close to the support part of the lead screw, and the transmission rigidity of the motor end and the overall transmission stability can be improved.
2. When the screw rod is connected with the motor end speed reducer, the tail part of the screw rod end integrally penetrates through the speed reducer and is firmly combined with the speed reducer into a whole through the tensioning mechanism, the two end shaft connection form of the shaft coupling is omitted, compared with the shaft coupling connection form, the machine tool can bear larger cutting resistance in vertical transmission, and meanwhile, the transmission error of an intermediate link is reduced.
3. The lead screw stiff end, the lead screw passes through ring flange and supporting seat with bearing roller pin thrust cylindrical roller bearing and speed reducer tight structure with dual fixed mode, guarantees the stationarity of motor and speed reducer output torque, has solved the influence of vibration, impact and the dynamic load that the power vertical drive produced in the operation to lathe cutting.
4. When the vertical transmission structure of the vertical lead screw for the machine tool is arranged on a ram of the machine tool and used for Z-direction transmission, the overall height of the machine tool can be effectively reduced, and the applicability of machine tool products with the same specification is higher.
5. In the vertical transmission structure of the vertical directional screw rod for the machine tool, the two ends of the screw rod are fixed at one end and supported at the other end, and the upper fixed end adopts a needle roller thrust cylindrical roller bearing to simultaneously bear great axial load and radial load, so that the whole transmission structure can bear heavy load and vibration load. Compared with a common deep groove ball bearing, the deep groove ball bearing has the advantages of strong load bearing capacity and longer service life. The supporting end only bears radial force, can do slight axial floating, can reduce or avoid bending caused by the self weight of the screw rod, and can freely extend towards one end due to thermal deformation of the screw rod.
Drawings
FIG. 1 is a schematic view of a vertical transmission structure of a vertical lead screw for a machine tool;
FIG. 2 is an enlarged view of a partial structure of the fixed end of the lead screw;
FIG. 3 is a front view of a flange plate in the fixed end of the lead screw;
FIG. 4 is a cross-sectional view of a flange in the fixed end of the lead screw;
FIG. 5 is a front view of a support seat in the fixed end of the lead screw;
FIG. 6 is a cross-sectional view of a support seat in the fixed end of the lead screw;
FIG. 7 is an enlarged view of a portion of the support end of the lead screw;
FIG. 8 is a front view of the bearing housing at the support end of the lead screw;
FIG. 9 is a top view of the lead screw support end bearing block.
Detailed Description
The vertical transmission structure of the vertical lead screw for the machine tool comprises a servo motor, a speed reducer and a lead screw on a ram, and is characterized in that after the servo motor 1 is connected with the speed reducer 2, one end of the lead screw 8 vertically enters the speed reducer 2 and is firmly fixed through a tensioning structure, a needle roller thrust cylindrical roller bearing 6 is accommodated in the circle centers of a flange 3 and a supporting seat 4, the flange 3 and the lead screw 8 are locked by a locking nut 5 to form a fixed end, the flange 3 at the fixed end is fastened with the speed reducer 2 by a screw, and the fixed end is fixed in a dual mode; the thrust angular contact ball bearing 9 and the bearing seat 10 are arranged at the other end of the screw rod 8 through an upper spacer bush 11 and a lower spacer bush 11 to form a support end, and the tail end of the support end is fastened by a locking nut 5.
The screw 8 and a flange 3 in the fixed end of the speed reducer 2 are provided with an assembling center hole, an inner boss at one side and an outer boss, the outer boss is provided with a screw hole corresponding to the screw hole of the outer boss of the supporting seat 4, see fig. 3-6, and the inner boss of the flange 3 is provided with a screw hole fixed with the speed reducer 2; the two axial ends of the supporting seat 4 are provided with peripheral round tables, the middle diameter of the supporting seat is reduced, and radial oil injection holes are formed in the diameter reducing wall, peripheral screw through holes of the peripheral round tables correspond to peripheral table screw holes of the flange plate 3, 4 stages of ring tables which are gradually sunken towards the center are arranged in the axial direction of the supporting seat 4, one of the ring tables is provided with a screw hole for installing the roller pin thrust cylindrical roller bearing 6, and the radial oil injection holes correspond to installation spaces of the roller pin thrust cylindrical roller bearing 6. The needle roller thrust cylindrical roller bearing 6 is arranged on a circle center concave ring platform of the supporting seat 4 and fixed through a screw. The upper part of the needle roller thrust cylindrical roller bearing 6 is fastened on a screw rod 8 by a locking nut 5; a spacer 7 is arranged between the lower part of the needle roller thrust cylindrical roller bearing 6 and the circle center of the reducing table of the screw rod 8, so that the needle roller thrust cylindrical roller bearing 6 is positioned on the screw rod 8. The supporting end is shown in figures 7-9, the bearing seat 10 is a cuboid, and a through hole penetrating the height is formed in the thickness surface and is a mounting hole; the central hole on the long and wide surface of the bearing seat 10 penetrates through the mounting hole of the screw rod 8 with the whole thickness. The thrust angular contact ball bearing 9 is externally provided with a bearing seat 10, the thrust angular contact ball bearing 9 and the bearing seat 10 are arranged at the lower end of the screw rod 8 through an upper spacer bush 11 and a lower spacer bush 11, the tail end of the screw rod 8 is fastened by a locking nut 5, and an adjusting pad 12 is additionally arranged between the bearing seat 10 and an installed ram to perform radial fine adjustment on the screw rod 8.
Claims (4)
1. A vertical transmission structure of a vertical lead screw for a machine tool comprises a servo motor, a speed reducer and a lead screw on a ram, and is characterized in that after the servo motor (1) is connected with the speed reducer (2), one end of the lead screw (8) vertically enters the speed reducer (2) and is firmly fixed through a tensioning structure, a needle roller thrust cylindrical roller bearing (6) is accommodated in the circle center of a flange plate (3) and a supporting seat (4), the flange plate (3) and the lead screw (8) are locked by a locking nut (5) to form a fixed end, the flange plate (3) and the speed reducer (2) are fixed through screws, and the fixed end is fixed in a dual mode; the thrust angular contact ball bearing (9) and the bearing seat (10) are arranged at the other end of the screw rod (8) through an upper spacer bush and a lower spacer bush (11) to form a supporting end, and the tail ends of the supporting end are fastened by a locking nut (5).
2. The vertical drive structure of a vertical feed screw for a machine tool according to claim 1, wherein the flange plate (3) has an assembling center hole, a one-side inner boss and an outer boss, the outer boss has a screw hole corresponding to the screw hole of the outer boss of the support base (4), and the inner boss of the flange plate (3) has a screw hole for fixing to the speed reducer (2).
3. The vertical transmission structure of a vertical screw for a machine tool according to claim 1, wherein the fixed end structure: the two axial ends of the supporting seat (4) are provided with peripheral round tables, the middle diameter of the supporting seat is reduced, and radial oil injection holes are formed in the diameter reducing wall, peripheral screw through holes of the peripheral round tables correspond to peripheral table screw holes of the flange plate (3), 4 stages of annular tables which are gradually sunken towards the center are arranged in the axial direction of the supporting seat (4), one annular table is provided with a screw hole for installing the roller pin thrust cylindrical roller bearing (6), and the radial oil injection holes correspond to installation spaces of the roller pin thrust cylindrical roller bearing (6); a spacer bush (7) is arranged between the lower part of the needle roller thrust cylindrical roller bearing (6) and the circle center of the reducing table of the screw rod (8).
4. The vertical drive structure of a vertical feed screw for a machine tool according to claim 1, characterized in that the support end structure: the lower end of the screw rod (8) is fastened with a thrust angular contact ball bearing (9) through an upper spacer bush and a lower spacer bush (11), the tail end of the screw rod is fastened by a locking nut (5), a bearing seat (10) is additionally arranged outside the thrust angular contact ball bearing (9), an adjusting pad (12) is additionally arranged between the bearing seat (10) and an installed ram, and the screw rod (8) is subjected to radial fine adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021382030.0U CN213080826U (en) | 2020-07-14 | 2020-07-14 | Vertical transmission structure of vertical lead screw for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021382030.0U CN213080826U (en) | 2020-07-14 | 2020-07-14 | Vertical transmission structure of vertical lead screw for machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN213080826U true CN213080826U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021382030.0U Active CN213080826U (en) | 2020-07-14 | 2020-07-14 | Vertical transmission structure of vertical lead screw for machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730394A (en) * | 2020-07-14 | 2020-10-02 | 中捷机床有限公司 | Vertical transmission structure and manufacturing method of vertical screw for machine tool |
-
2020
- 2020-07-14 CN CN202021382030.0U patent/CN213080826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730394A (en) * | 2020-07-14 | 2020-10-02 | 中捷机床有限公司 | Vertical transmission structure and manufacturing method of vertical screw for machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210923 Address after: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: SHENYANG MACHINE TOOL (GROUP) CO.,LTD. Address before: 110141, No. 17, No. 1, development road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee before: Zhongjie Machine Tool Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: General Technology Group Shenyang Machine Tool Co.,Ltd. Address before: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee before: SHENYANG MACHINE TOOL (GROUP) CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230927 Address after: No.17-A 1-4, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang, Liaoning Province, 110000 Patentee after: Shenyang Machine Tool Zhongjie Friendship Factory Co.,Ltd. Address before: No.17a1, Kaifa Road, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee before: General Technology Group Shenyang Machine Tool Co.,Ltd. |
|
| TR01 | Transfer of patent right |