CN110293268B - A pneumatic rotary table - Google Patents
A pneumatic rotary table Download PDFInfo
- Publication number
- CN110293268B CN110293268B CN201910673617.2A CN201910673617A CN110293268B CN 110293268 B CN110293268 B CN 110293268B CN 201910673617 A CN201910673617 A CN 201910673617A CN 110293268 B CN110293268 B CN 110293268B
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- sleeve
- piston
- pull rod
- main shaft
- spindle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
本发明提供了一种气动回转工作台，属于机械零件技术领域。它解决了现有气动回转工作台驱动机构结构不紧凑、驱动稳定性差等技术问题。本气动回转工作台包括主轴套、缸体、主轴主体和驱动件，主轴主体内设有安装孔，驱动件驱动主轴主体转动，主轴主体的内外侧分别设有拉杆丝套和拉杆套，主轴主体上设有长条孔，拉杆丝套的外侧套设的活塞套之外侧成型有活塞主体，活塞主体与缸体密封连接，缸体的两侧向内成型的密封板与活塞套密封连接，密封板或缸体的侧壁上设有向内进液或进气的通孔。本发明将拉杆的轴向移动和主轴主体的周向转动的结构相结合，不仅能够使结构更加紧凑，还能够使拉杆和主轴主体的运动稳定性更高。
The present invention provides a pneumatic rotary table, which belongs to the technical field of mechanical parts. It solves the technical problems of the existing pneumatic rotary table drive mechanism having a non-compact structure and poor driving stability. The pneumatic rotary table includes a spindle sleeve, a cylinder body, a spindle body and a driving member. A mounting hole is provided in the spindle body. The driving member drives the spindle body to rotate. A pull rod thread sleeve and a pull rod sleeve are provided on the inner and outer sides of the spindle body respectively. The spindle body is provided with a long hole. The outer side of the piston sleeve sleeved on the outer side of the pull rod thread sleeve is formed with a piston body. The piston body is sealed and connected to the cylinder body. The sealing plates formed inwardly on both sides of the cylinder body are sealed and connected to the piston sleeve. A through hole for inward liquid or air intake is provided on the side wall of the sealing plate or the cylinder body. The present invention combines the structure of the axial movement of the pull rod and the circumferential rotation of the spindle body, which can not only make the structure more compact, but also make the movement stability of the pull rod and the spindle body higher.
Description
Technical Field
The invention belongs to the technical field of mechanical parts, and particularly relates to a pneumatic rotary workbench.
Background
At present, in a rotary workbench of an existing gear chamfering machine, most of driving mechanisms for driving a main shaft to rotate are driven by worm gears or gears, a driving shaft is generally positioned on the side face of the main shaft, hydraulic or pneumatic mechanisms for clamping workpieces are positioned on the right lower side of the main shaft, and the two mechanisms are separated, so that the whole driving mechanism is not compact in structure, and the driving stability is poor.
Disclosure of Invention
The invention aims to provide a pneumatic rotary workbench with a more compact structure and higher stability.
The purpose of the invention is realized in the following way:
The utility model provides a pneumatic rotary table, its characterized in that, including from the top down main shaft cover, cylinder body and driving piece that set gradually, be equipped with in main shaft cover and the cylinder body with both simultaneously run through and with the rotatable main shaft main part of being connected of both, the upper end of main shaft main part stretches out from the upper end of main shaft cover, driving piece drive main shaft main part rotates around the axis of main shaft main part, be equipped with the mounting hole coaxial with main shaft main part on the main shaft main part, the inboard and the outside of main shaft main part are equipped with respectively with main shaft main part axial sliding's pull rod silk cover and pull rod cover, pull rod silk cover and pull rod cover pass through the cylindric lock fixed, be equipped with on the main shaft main part and make it can be in axial gliding rectangular hole with the cylindric lock cooperation, the outside cover of pull rod silk cover is equipped with rotatable piston cover, the outside shaping of piston cover has annular piston main part, the lateral surface of piston main part and the medial surface sealing connection of cylinder body, the both sides of cylinder body inwards shaping has annular closing plate, the medial surface and the lateral surface sealing plate sealing connection of piston cover, or interior intake air inlet opening or the last side wall that is equipped with of closing plate or inside liquid.
According to the application, the main shaft body rotates under the drive of the driving piece, the pull rod wire sleeve and the pull rod sleeve synchronously rotate along with the main shaft body, and as the piston sleeve is rotatably connected with the pull rod sleeve, when the main shaft body rotates, the piston sleeve, the piston body and the cylinder body keep circumferential static, and the lifting or lowering of the piston body is realized by feeding liquid or air into the lower side of the piston body in the cylinder body, so that the lifting or lowering of the pull rod connected with the pull rod wire sleeve is driven to realize the clamping and loosening of a product.
In the pneumatic rotary workbench, the upper end part of the pull rod sleeve is outwards provided with the annular shoulder, the lower end part of the pull rod sleeve is in threaded connection with the nut, the inner side surface of the piston sleeve is inwards provided with the annular connecting block, the connecting block is positioned between the annular shoulder and the nut, and bearings are respectively arranged between the connecting block and the annular shoulder and between the connecting block and the nut. The annular shoulder and the nut are designed to enable the piston sleeve and the pull rod sleeve to be fixed in the axial direction, when the piston moves in the axial direction, the pull rod can be driven to move in the axial direction through the pull rod sleeve, and the piston sleeve and the pull rod sleeve can be rotationally connected in the circumferential direction by virtue of the bearing arranged between the piston sleeve and the pull rod sleeve, so that the piston sleeve can not rotate in the circumferential direction along with the pull rod sleeve, and the sealing property of connection between the piston and the side wall of the cylinder body is improved.
In the pneumatic rotary workbench, the main shaft body is provided with a first step surface propped against the upper end of the pull rod sleeve and a second step surface propped against the upper end of the piston sleeve, the outer side of the nut is sleeved with the induction disc, and the induction disc is fixedly connected with the lower end of the piston sleeve. The design of the first step surface and the second step surface can limit the axial upward movement of the piston sleeve, and prevent the piston main body from touching the upper wall of the cylinder body or the cylindrical pin from touching the upper end of the strip hole, so that the influence of the deformation of the piston main body on the tightness or the influence of the deformation of the cylindrical pin on the stability of the axial movement can be avoided.
In the pneumatic rotary workbench, the annular sealing rings are fixed on the outer side face of the piston main body, and the annular sealing rings are arranged on the inner side faces of the two sealing plates.
In the pneumatic rotary table, the driving piece is a motor, the motor is fixedly connected with the main shaft body through a speed reducer, the speed reducer is fixedly connected with the lower end of the cylinder body through a speed reducer seat, the upper end of the cylinder body is fixedly connected with a main shaft sleeve, and the main shaft sleeve is fixed on the frame.
In the pneumatic rotary table, the upper end and the lower end of the main shaft sleeve are respectively fixed with an upper bearing cover and a lower bearing cover, the upper end of the main shaft main body is sleeved with an upper bearing and a lower bearing which are vertically arranged at intervals, a bearing spacer is arranged between the upper bearing and the lower bearing, the lower end of the lower bearing is abutted against the lower bearing cover, and the upper end of the upper bearing is abutted against the upper bearing cover. The design of the bearing structure can enable the connection between the bearings to be more compact, and ensure the stability of the main shaft body during rotation.
Compared with the prior art, the invention has the following outstanding and beneficial technical effects:
According to the invention, the main shaft body rotates under the drive of the driving piece, the pull rod wire sleeve and the pull rod sleeve synchronously rotate along with the main shaft body, and as the piston sleeve is rotatably connected with the pull rod sleeve, when the main shaft body rotates, the piston sleeve, the piston body and the cylinder body keep circumferential static, the lifting or the lowering of the piston body is realized by feeding liquid or air to the lower side of the piston body in the cylinder body, so that the lifting or the lowering of the pull rod connected with the pull rod wire sleeve is driven, and the grabbing action is realized.
Drawings
Fig. 1 is an overall cross-sectional view of the present invention.
Fig. 2 is an enlarged view of a portion of the piston of the present invention.
Fig. 3 is a schematic structural view of the main shaft body of the present invention.
In the figure, 1, a main shaft sleeve, 11, an upper bearing cover, 12, an upper bearing, 13, a bearing spacer, 14, a lower bearing, 15, a lower bearing cover, 2, a cylinder body, 21, a piston sleeve, 211, a connecting block, 22, a piston main body, 23, a sealing plate, 3, a driving piece, 4, a main shaft main body, 41, a mounting hole, 42, a pull rod wire sleeve, 43, a pull rod sleeve, 431, an annular shoulder, 432, a nut, 44, a cylindrical pin, 45, a strip hole, 46, a first step surface, 47, a second step surface, 48, an induction disc and 5, and a bearing.
Detailed Description
The invention is further described in the following by way of specific embodiments with reference to the accompanying drawings, in which reference is made to fig. 1-3:
The pneumatic rotary table comprises a main shaft sleeve 1, a cylinder body 2 and a driving piece 3 which are sequentially arranged from top to bottom, wherein a main shaft main body 4 which penetrates through the main shaft sleeve 1 and is rotatably connected with the main shaft sleeve 1 is arranged in the main shaft sleeve 1 and the cylinder body 2, the upper end of the main shaft main body 4 extends out from the upper end of the main shaft sleeve 1, the driving piece 3 drives the main shaft main body 4 to rotate around the central axis of the main shaft main body 4, a mounting hole 41 which is coaxial with the main shaft main body 4 is formed in the main shaft main body 4, a pull rod wire sleeve 42 and a pull rod sleeve 43 which can axially slide with the main shaft main body 4 are respectively arranged on the inner side and the outer side of the main shaft main body 4, the pull rod wire sleeve 42 and the pull rod sleeve 43 are fixed through cylindrical pins 44, a long hole 45 which can axially slide by being matched with the cylindrical pins 44 is formed in the main shaft main body 4, a rotatable piston sleeve 21 is sleeved on the outer side of the pull rod wire sleeve 42, an annular piston main body 22 is formed on the outer side of the piston sleeve 21, the outer side of the piston main body 22 is in a sealing connection with the inner side of the cylinder body 2, annular sealing plates 23 are formed on the two sides of the cylinder body 2 inwards, the inner side of the sealing plates 23 are in sealing plates are in sealing connection with the outer side surfaces of the cylinder body 2, or the inner side walls of the sealing plates 23 are provided with inner liquid inlets. According to the application, the main shaft body 4 rotates under the drive of the driving piece 3, the pull rod wire sleeve 42 and the pull rod sleeve 43 synchronously rotate along with the main shaft body 4, and as the piston sleeve 21 is rotatably connected with the pull rod sleeve 43, when the main shaft body 4 rotates, the piston sleeve 21, the piston body 22 and the cylinder body 2 keep circumferential static, and the lifting or lowering of the piston body 22 is realized by feeding liquid or air to the lower side of the piston body 22 in the cylinder body 2, so that the lifting or lowering of the pull rod connected with the pull rod wire sleeve 42 is driven, and the clamping and loosening of a product are realized.
As shown in fig. 2, an annular shoulder 431 is formed at the upper end of the pull rod sleeve 43 outwards, a nut 432 is connected at the lower end of the pull rod sleeve 43 in a threaded manner, an annular connecting block 211 is formed at the inner side surface of the piston sleeve 21 inwards, the connecting block 211 is positioned between the annular shoulder 431 and the nut 432, bearings 5 are respectively arranged between the connecting block 211 and the annular shoulder 431 and between the connecting block 211 and the nut 432, an annular sealing ring 24 is fixed on the outer side surface of the piston main body 22, and annular sealing rings 24 are arranged on the inner side surfaces of the two sealing plates 23. The design of the annular convex shoulder 431 and the nut 432 can enable the piston sleeve 21 and the pull rod sleeve 43 to be fixed in the axial direction, when the piston moves in the axial direction, the pull rod can be driven by the pull rod sleeve 43 to move in the axial direction, and the bearing 5 is arranged between the piston sleeve 21 and the pull rod sleeve 43 to enable the piston sleeve 21 and the pull rod sleeve 43 to be rotatably connected in the circumferential direction, so that the piston sleeve 21 can not rotate in the circumferential direction along with the pull rod sleeve 43, and the tightness of connection between the piston and the side wall of the cylinder body 2 is improved.
As shown in fig. 3, the main shaft body 4 is provided with a first step surface 46 abutting against the upper end of the pull rod sleeve 43 and a second step surface 47 abutting against the upper end of the piston sleeve 21, the outer side of the nut 432 is sleeved with a sensing disc 48, and the sensing disc 48 is fixedly connected with the lower end of the piston sleeve 21. The design of the first step surface 46 and the second step surface 47 can limit the upward movement of the piston sleeve 21 in the axial direction, and prevent the piston main body 22 from touching the upper wall of the cylinder body 2 or the cylindrical pin 44 from touching the upper end of the strip hole 45, so that the influence of the deformation of the piston main body 22 on the tightness or the influence of the deformation of the cylindrical pin 44 on the stability of the axial movement can be avoided.
As shown in fig. 1, the driving part 3 is a motor, the motor is fixedly connected with the main shaft body 4 through a speed reducer 31, the speed reducer 31 is fixedly connected with the lower end of the cylinder body 2 through a speed reducer base 32, the upper end of the cylinder body 2 is fixedly connected with the main shaft sleeve 1, the main shaft sleeve 1 is fixed on the frame 6, an upper bearing cover 11 and a lower bearing cover 15 are respectively fixed at the upper end and the lower end of the main shaft sleeve 1, an upper bearing 12 and a lower bearing 14 which are vertically arranged at intervals are sleeved at the upper end of the main shaft body 4, a bearing spacer 13 is arranged between the upper bearing 12 and the lower bearing 14, the lower end of the lower bearing 14 is abutted against the lower bearing cover 15, the upper end of the upper bearing 12 is abutted against the upper bearing cover 11, and the connection between the bearings 5 can be more compact due to the design of the structure of the bearings 5, and the stability of the main shaft body 4 during rotation is ensured.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered by the scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910673617.2A CN110293268B (en) | 2019-07-24 | 2019-07-24 | A pneumatic rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910673617.2A CN110293268B (en) | 2019-07-24 | 2019-07-24 | A pneumatic rotary table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110293268A CN110293268A (en) | 2019-10-01 |
| CN110293268B true CN110293268B (en) | 2024-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910673617.2A Active CN110293268B (en) | 2019-07-24 | 2019-07-24 | A pneumatic rotary table |
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| Country | Link |
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| CN (1) | CN110293268B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201098738Y (en) * | 2007-09-11 | 2008-08-13 | 陈纬宸 | Numerical control lathe spindle |
| CN210208937U (en) * | 2019-07-24 | 2020-03-31 | 温岭市宇弘机械设备有限公司 | Pneumatic rotary worktable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201304578Y (en) * | 2008-12-03 | 2009-09-09 | 羊立民 | Non-stop rotary clamping cylinder |
| CN107756097A (en) * | 2016-08-19 | 2018-03-06 | 叶光才 | A kind of machine tool clamping device and its rotary cylinder |
-
2019
- 2019-07-24 CN CN201910673617.2A patent/CN110293268B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201098738Y (en) * | 2007-09-11 | 2008-08-13 | 陈纬宸 | Numerical control lathe spindle |
| CN210208937U (en) * | 2019-07-24 | 2020-03-31 | 温岭市宇弘机械设备有限公司 | Pneumatic rotary worktable |
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| CN110293268A (en) | 2019-10-01 |
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