CN216632745U - Automatic locking mechanism of rotary milling head rotating shaft of rotary milling machine - Google Patents
Automatic locking mechanism of rotary milling head rotating shaft of rotary milling machine Download PDFInfo
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- CN216632745U CN216632745U CN202220152642.3U CN202220152642U CN216632745U CN 216632745 U CN216632745 U CN 216632745U CN 202220152642 U CN202220152642 U CN 202220152642U CN 216632745 U CN216632745 U CN 216632745U
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Abstract
The utility model relates to an automatic locking mechanism of a rotary milling head revolving shaft of a rotary milling machine, which comprises a rotary milling head, a revolving spindle connected to the rotary milling head and a worm wheel connected to the middle part of the revolving spindle, wherein the worm wheel is meshed with a worm which is controlled by a servo motor, and the rear end part of the revolving spindle is provided with a large flange disc; the outer side of the rotary main shaft is connected with a sliding plate body through a bearing, a forming oil cylinder groove is arranged on the bottom of the sliding plate body and on the side surface in contact with the large flange plate, a piston is installed in the forming oil cylinder groove, an oil cavity is formed between the piston and the forming oil cylinder groove, an inner O-shaped ring is sleeved on the inner ring of the piston, and an outer O-shaped ring is sleeved on the outer ring of the piston; the sliding plate body is provided with an oil delivery hole communicated with the oil cavity, the oil delivery hole is screwed with an oil pipe joint, and the oil pipe joint is connected with a high-pressure oil pipe communicated with the hydraulic station; and the rear end of the rotary main shaft is provided with an automatic clamping oil cylinder. The locking and the releasing of the rotary main shaft are controlled by hydraulic pressure, and the pressure is used for adjusting, so that the locking and the releasing of the rotary main shaft are quick and convenient, and the reliability is high.
Description
The technical field is as follows:
the utility model relates to the field of rotary milling machine equipment, in particular to an automatic locking mechanism of a rotary milling head rotating shaft of a rotary milling machine.
Background art:
a plurality of machine tools have the function of tool rest rotation, such as a hobbing tool rest of a numerical control hobbing machine. The tool rest before hobbing needs to rotate for a certain installation angle, and the tool rest with the rotation function needs to be provided with a corresponding locking mechanism. The traditional structure of the locking mechanism adopts a mechanical locking and hydraulic loosening mode. Because the mechanical locking mainly depends on a spring, the arrangement of the spring is very troublesome, the tool rest is not rotated and cannot be locked due to the fact that the elasticity of the spring is too large and the tool rest is selected to be small. In the batch production of the numerical control machine tool, the quality and the size of each part cannot be consistent, so that the damping of the relative rotating part of each machine tool is different. The locking spring selection is time-consuming and labor-consuming, and in particular the adjustment is time-consuming and complicated.
The utility model has the following contents:
the utility model aims to overcome the defects in the prior art, and provides an automatic locking mechanism of a rotary milling head rotating shaft of a rotary milling machine, which at least solves the technical problems in the prior art.
The technical solution of the utility model is as follows:
an automatic locking mechanism of a rotary milling head rotating shaft of a rotary milling machine comprises a rotary milling head, a rotary main shaft connected to the rotary milling head and a worm wheel connected to the middle of the rotary main shaft, wherein the worm wheel is meshed with the worm, the worm rotates under the control of a servo motor, a large flange disc is arranged at the rear end part of the rotary main shaft, and an adjusting gasket is arranged between the large flange disc and the rotary main shaft; the outer side of the rotary main shaft is connected with a sliding plate body through a bearing, a forming oil cylinder groove is formed in the bottom of the sliding plate body and on the side face, which is in contact with the large flange plate, of the sliding plate body, a piston is installed in the forming oil cylinder groove, an oil cavity is formed between the piston and the forming oil cylinder groove, an inner ring of the piston is sleeved with an inner O-shaped ring for preventing leakage, and an outer ring of the piston is sleeved with an outer O-shaped ring for preventing leakage; the sliding plate body is provided with an oil delivery hole communicated with the oil cavity, the oil delivery hole is screwed with an oil pipe joint, and the oil pipe joint is connected with a high-pressure oil pipe communicated with the hydraulic station; the rear end of the rotary main shaft is provided with an automatic clamping oil cylinder.
Preferably, the rotary milling head is fixed on a front end disc of the rotary main shaft through a first inner hexagonal socket head cap screw.
Preferably, a boss is arranged in the middle of the rotary main shaft 1, and a worm wheel is fixed on the boss through a second inner hexagonal cylindrical head screw.
Preferably, the large flange disc and the adjusting gasket are fastened on the rear end shaft of the rotary main shaft through a third inner hexagonal socket head cap screw.
Preferably, the rear end of the outer side of the rotary main shaft and the sliding plate body are supported by a first single-row deep groove ball bearing, the front end of the outer side of the rotary main shaft and the sliding plate body are supported by a second single-row deep groove ball bearing, the first single-row deep groove ball bearing is axially positioned by an elastic retainer ring, and the second single-row deep groove ball bearing is axially positioned by a shaft sleeve, so that a rotary shaft system is formed.
Preferably, an annular groove is formed in the side face of the rotary main shaft, and the elastic retainer ring is clamped in the annular groove; the shaft sleeve is sleeved outside the rotary main shaft and is abutted between a boss in the middle of the rotary main shaft and an inner ring of the second single-row deep groove ball bearing.
Preferably, a contact area between the tip of the main rotation shaft and the slide plate body is 28 times or more larger than a contact area between the piston and the slide plate body.
Preferably, the oil conveying hole is a circular hole, and the aperture of the oil conveying hole is 8 mm.
The utility model has the beneficial effects that:
the utility model can be adjusted quickly and conveniently by pressure according to the requirement during debugging, and has extremely high reliability. Because the locking and the unlocking are controlled by a hydraulic system which is connected with a computer in a machine tool control system in a network mode, all the operations of the machine tool are completed by machining programs. The locking mechanism is high in reliability, the worm wheel is arranged in the middle of the rotary main shaft and meshed with the worm, if a hydraulic part fails, the worm is controlled by the servo motor, and under the power-on condition, the servo motor is self-locked, so that the worm cannot move, the worm wheel cannot move, and the whole rotary main shaft and the rotary milling head cannot move. If the machine tool is powered off, the worm wheel and the worm on the rotary main shaft cannot move due to the mutual self-locking of the worm wheel pair. This ensures that the locking mechanism of the present patent is reliable and reliable under all circumstances.
Description of the drawings:
the utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the following description is of the preferred embodiment of the present invention only, and is not intended to limit the scope of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In addition, references to the terms "vertical," "horizontal," "top," "bottom," "front," "back," "upper," "lower," "inner," "outer," and the like in embodiments of the utility model are based on the orientation or positional relationship shown in FIG. 1, or the orientation or positional relationship in which the product is conventionally used, for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "fixed" in the description are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to the attached figure 1, the automatic locking mechanism of the rotary milling head rotary shaft of the rotary milling machine comprises a rotary milling head 19, a rotary main shaft 1 connected to the rotary milling head 19 and a worm wheel 14 connected to the middle of the rotary main shaft, wherein the worm wheel is meshed with a worm 4, and the worm rotates under the control of a servo motor. The rotary milling head is fixed on a front end disc of the rotary main shaft through 5M 16x60 first hexagon socket head cap screws 3.
A boss is arranged in the middle of the rotary main shaft 1, and a worm wheel 14 is fixed on the boss through 6M 8x35 second hexagon socket head cap screws 13.
The rear end part of the rotary main shaft is provided with a large flange disc 7, and an adjusting gasket 10 is arranged between the large flange disc 7 and the rotary main shaft 1; the large flange 7 and the adjusting shim 10 are fastened on the rear end shaft of the rotary main shaft 1 through 6M 6x20 third hexagon socket head cap screws 9.
The outer side of the rotary main shaft is connected with the sliding plate body 2 through a bearing, the rear end of the outer side of the rotary main shaft and the sliding plate body 2 are supported through a first single-row deep groove ball bearing 8 of 100x150x24, the front end of the outer side of the rotary main shaft and the sliding plate body 2 are supported through a second single-row deep groove ball bearing 18 of 130x180x24, the first single-row deep groove ball bearing is axially positioned through a 100 elastic check ring 11, and the second single-row deep groove ball bearing is axially positioned through a shaft sleeve 17 to form a rotary shaft system.
An annular groove is formed in the side face of the rotary main shaft, and the elastic retainer ring is clamped in the annular groove; the shaft sleeve is sleeved outside the rotary main shaft and is abutted between a boss in the middle of the rotary main shaft and an inner ring of the second single-row deep groove ball bearing.
A forming cylinder groove is formed in the side face, which is in contact with the large flange plate, of the bottom of the sliding plate body, a piston 12 is installed in the forming cylinder groove, an oil cavity is formed between the piston and the forming cylinder groove, an inner ring of the piston 12 is sleeved with a 170x5.3 inner O-shaped ring 6 for preventing leakage, and an outer ring of the piston is sleeved with a 200x5.3 outer O-shaped ring 5 for preventing leakage; the sliding plate body is provided with an oil delivery hole communicated with the oil cavity, the oil delivery hole is screwed with a Z1/2' oil pipe joint 15, and the oil pipe joint 15 is connected with a high-pressure oil pipe 16 leading to the hydraulic station; the rear end of the rotary main shaft is provided with an automatic clamping oil cylinder.
The contact area between the front end of the rotary main shaft and the sliding plate body is more than 28 times larger than that between the piston and the sliding plate body.
The oil transmission hole is a round hole, and the aperture is 8 mm.
The specific use mode is as follows: the contact area between the piston 12 and the sliding plate body is
When the intake oil pressure P is 40Pa, the thrust force F ═ P ═ 40x87.135 ═ 3485.4(kg), about 3.5 tons is generated by the piston 12 against the large flange 7. In addition, the contact area between the front end of the rotary main shaft 1 and the sliding plate body 2 is 28 times larger than that of the piston 12, so that the rotary main shaft 1 can be firmly attached to the sliding plate body 2 by only introducing pressure oil into the hydraulic cylinder. Before cutting, the rotary milling head 19 fixed on the circular disc at the front end of the rotary main shaft 1 automatically adjusts the installation angle within the range of +/-15 degrees, and once the installation angle is determined according to cutting parameters, the clamping mechanism is immediately and automatically locked, so that other operations can be carried out on the machine tool. The circumferential cutting force generated by the experimental rotary milling head 19 during cutting is only about 30% of the tensioned acting force of the rotary main shaft, and the circular cutting force is very firm and completely meets the design requirements.
In the description herein, references to the description of the terms "embodiment," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a revolve automatic locking mechanism of milling head revolving axle of milling machine, is including revolving the milling head, connecting the gyration main shaft on revolving the milling head and connecting the worm wheel at gyration main shaft middle part, and the worm wheel meshes with the worm mutually, and the worm rotates its characterized in that through servo motor control: the rear end part of the rotary main shaft is provided with a large flange disc, and an adjusting gasket is arranged between the large flange disc and the rotary main shaft; the outer side of the rotary main shaft is connected with a sliding plate body through a bearing, a forming oil cylinder groove is formed in the bottom of the sliding plate body and on the side face, which is in contact with the large flange plate, of the sliding plate body, a piston is installed in the forming oil cylinder groove, an oil cavity is formed between the piston and the forming oil cylinder groove, an inner ring of the piston is sleeved with an inner O-shaped ring for preventing leakage, and an outer ring of the piston is sleeved with an outer O-shaped ring for preventing leakage; the sliding plate body is provided with an oil delivery hole communicated with the oil cavity, the oil delivery hole is screwed with an oil pipe joint, and the oil pipe joint is connected with a high-pressure oil pipe communicated with the hydraulic station; the rear end of the rotary main shaft is provided with an automatic clamping oil cylinder.
2. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 1, wherein: the rotary milling head is fixed on a front end disc of the rotary main shaft through a first inner hexagonal socket head cap screw.
3. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 1, wherein: a boss is arranged in the middle of the rotary main shaft, and a worm wheel is fixed on the boss through a second inner hexagonal cylindrical head screw.
4. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 1, wherein: and the large flange disc and the adjusting gasket are fastened on a rear end shaft of the rotary main shaft through a third inner hexagonal socket head cap screw.
5. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 1, wherein: the rear end of the outer side of the rotary main shaft and the sliding plate body are supported through a first single-row deep groove ball bearing, the front end of the outer side of the rotary main shaft and the sliding plate body are supported through a second single-row deep groove ball bearing, the first single-row deep groove ball bearing is axially positioned through an elastic check ring, and the second single-row deep groove ball bearing is axially positioned through a shaft sleeve to form a rotary shaft system.
6. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 5, wherein: an annular groove is formed in the side face of the rotary main shaft, and an elastic check ring is clamped in the annular groove; the shaft sleeve is sleeved outside the rotary main shaft and is abutted between a boss in the middle of the rotary main shaft and an inner ring of the second single-row deep groove ball bearing.
7. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 1, wherein: the contact area between the front end of the rotary main shaft and the sliding plate body is more than 28 times larger than that between the piston and the sliding plate body.
8. The automatic locking mechanism for a rotary milling head spindle of a rotary milling machine according to claim 1, wherein: the oil transmission hole is a round hole, and the aperture is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220152642.3U CN216632745U (en) | 2022-01-20 | 2022-01-20 | Automatic locking mechanism of rotary milling head rotating shaft of rotary milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220152642.3U CN216632745U (en) | 2022-01-20 | 2022-01-20 | Automatic locking mechanism of rotary milling head rotating shaft of rotary milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216632745U true CN216632745U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220152642.3U Active CN216632745U (en) | 2022-01-20 | 2022-01-20 | Automatic locking mechanism of rotary milling head rotating shaft of rotary milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216632745U (en) |
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2022
- 2022-01-20 CN CN202220152642.3U patent/CN216632745U/en active Active
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