CN215144748U - Hydraulic locking turning and milling spindle unit - Google Patents
Hydraulic locking turning and milling spindle unit Download PDFInfo
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- CN215144748U CN215144748U CN202121387621.1U CN202121387621U CN215144748U CN 215144748 U CN215144748 U CN 215144748U CN 202121387621 U CN202121387621 U CN 202121387621U CN 215144748 U CN215144748 U CN 215144748U
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Abstract
The utility model provides a hydraulic locking turn-milling main shaft unit, including main shaft body and main shaft outer sleeve, the main shaft outer sleeve rotates the outside of suit at the main shaft body, still be equipped with hydraulic locking mechanism on the main shaft body, hydraulic locking mechanism includes annular pneumatic cylinder, the outside at the main shaft body of hydraulic cylinder suit, and it is fixed continuous with the main shaft outer sleeve through main shaft rear flange, be provided with axial displacement's annular piston in the pneumatic cylinder, but annular piston circumference rotation in the hydro-cylinder, the one end that annular piston is close to main shaft rear flange is provided with the expansion end fluted disc, the expansion end fluted disc passes through the key-type connection and is rotatory with main shaft body synchronization, be provided with the stiff end fluted disc with expansion end fluted disc engaged with on the main shaft rear flange. The utility model discloses a movable end-toothed disc and fixed end-toothed disc's meshing and the locking that breaks away from to realize the main shaft with loosen, locking is reliable, and locking torque is big.
Description
Technical Field
The utility model relates to a turn-milling combined machining lathe technical field especially indicates a hydraulic locking turn-milling main shaft unit.
Background
In recent years, domestic numerical control machine tools are developed quickly, a combined machining center for embodying process intensification is an important development direction, and a workpiece can be clamped once to realize turning of inner and outer circles, end faces, grooving and threads, and can also be indexed randomly to realize processes such as plane milling, plane drilling, thread tapping and the like. Turning and milling composite spindle units are important functional components of machine tools, and turning and milling conversion of the spindle units mainly has two modes from the current situation, wherein the first mode is that a single spindle head respectively realizes a turning function and a milling function (the modes are few); the second mode is that the spindle is locked by the electromagnetic force of a spindle power motor during turning.
The first mode needs two independent main shaft power units and a conversion device, and if automatic tool changing is configured, the structure is complex, the manufacturing cost is high, and the use is less at present; the second mode is the mainstream of the existing turning and milling composite machine tool, but the finish machining is mainly used, because the electromagnetic locking force of the main shaft power motor is small, the main shaft can shake during the powerful turning, the service life of the tool is shortened, and the machining quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hydraulic locking turn-milling main shaft unit, through the meshing of activity end-toothed disc and fixed end-toothed disc with break away from the locking that realizes the main shaft and loosen, locking is reliable, and locking torque is big.
The technical scheme of the utility model is realized like this: the utility model provides a hydraulic locking turn-milling main shaft unit, including main shaft body and main shaft outer sleeve, the main shaft outer sleeve rotates the outside of suit at the main shaft body, still be equipped with hydraulic locking mechanism on the main shaft body, hydraulic locking mechanism includes annular pneumatic cylinder, the hydraulic cylinder suit is in the outside of main shaft body, and it is fixed continuous with the main shaft outer sleeve through main shaft rear flange, be provided with axial displacement's annular piston in the pneumatic cylinder, but annular piston circumference rotatory in the pneumatic cylinder, the one end that annular piston is close to main shaft rear flange is provided with the movable end fluted disc, movable end fluted disc passes through the key-type connection and main shaft body synchronous revolution, be provided with the stiff end fluted disc with movable end fluted disc engaged with on the main shaft rear flange.
And furthermore, oil inlet and outlet ports are formed in the hydraulic cylinders on two sides of the annular piston.
Furthermore, a synchronous belt pulley is fixedly sleeved on the outer side of the main shaft body.
Further, the synchronous pulley is positioned on one side of the hydraulic cylinder far away from the outer sleeve of the main shaft.
Furthermore, the hydraulic locking mechanism is positioned at the rear end of the main shaft body, two end face keys are arranged at the front end of the main shaft body, a main shaft rear flange is connected with the rear end of a main shaft outer sleeve, the rear end of the main shaft outer sleeve is rotatably connected with the main shaft outer sleeve through a double-row cylindrical roller bearing I, and the front end of the main shaft outer sleeve is rotatably connected with the main shaft body through a front supporting mechanism.
Furthermore, the front supporting mechanism comprises a front locking nut, a front bearing spacer bush, an angular contact ball bearing, a double-row cylindrical roller bearing, a front check ring and a front spindle sealing cover which are sequentially sleeved on the spindle body from back to front, a front spindle flange is sleeved on the outer side of the front check ring and located on the front side of the outer spindle sleeve, and the front spindle flange is located between the outer spindle sleeve and the front spindle sealing cover.
Furthermore, a rear bearing spacer bush is arranged on the main shaft body on the front side of the double-row cylindrical roller bearing I, a rear bearing sealing cover is arranged on the main shaft body on the rear side, and a rear locking nut is arranged on the main shaft body on the rear side of the rear bearing sealing cover.
Further, the pneumatic cylinder includes the hydro-cylinder body, is provided with the annular inner tube that the axial runs through in the hydro-cylinder body, and annular inner tube suit has the hydro-cylinder lid in the outside of main shaft body, and the annular piston includes the loose tube of suit in the annular inner tube outside, and the one end of loose tube is fixed with annular cock body, and the other end slides and passes the hydro-cylinder lid and link to each other with the loose end fluted disc, all is provided with the business turn over hydraulic fluid port on the hydro-cylinder body of annular cock body both sides.
The utility model has the advantages that:
the utility model discloses a motion that hydraulic pressure promoted the piston realizes the meshing of movable end fluted disc and fixed end fluted disc and breaks away from, thereby realize the locking and the loosening of main shaft body, locking is reliable, locking torque is big, when the rotatory milling that realizes of needs main shaft, drilling, during the tapping, can install the milling cutter, movable end fluted disc and fixed end fluted disc break away from, main shaft body free rotation, realize milling the function, when the fixed turning function that realizes of needs main shaft, promote movable end fluted disc and fixed end fluted disc meshing through hydraulic pressure, the mechanical locking force of end fluted disc and spindle motor's electromagnetic locking force combined action, realize the reliable locking of main shaft, can realize powerful turning, the turning efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the split structure of the present invention.
The main shaft comprises a main shaft body 1, an expansion sleeve 2, a synchronous belt pulley 3, an oil cylinder body 4, an annular piston 5, an oil inlet and outlet 6, an oil cylinder cover 7, a movable end toothed disc 8, a fixed end toothed disc 9, a rear locking nut 10, a main shaft rear flange 11, a rear bearing sealing cover 12, a double-row cylindrical roller bearing I13, a rear bearing spacer 14, a main shaft outer sleeve 15, a front locking nut 16, a front bearing spacer 17, an angular contact ball bearing 18, a double-row cylindrical roller bearing II19, a front retaining ring 20, a main shaft front flange 21, a main shaft front sealing cover 22 and an end face key 23.
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 any creative effort belong to the protection scope of the present invention.
The utility model discloses a rear end refers to the left side of figure 1, and the front end refers to the right side of figure 1.
Example 1
As shown in fig. 1-2, a hydraulic locking turning and milling spindle unit comprises a spindle body 1 and a spindle outer sleeve 15, the spindle outer sleeve 15 is rotatably sleeved on the outer side of the spindle body 1, a hydraulic locking mechanism is further arranged on the spindle body 1, the hydraulic locking mechanism comprises an annular hydraulic cylinder, the hydraulic cylinder is sleeved on the outer side of the spindle body 1, the rear flange 11 is fixedly connected with an outer sleeve 15 of the main shaft through screws, an annular piston 5 which moves axially is arranged in the hydraulic cylinder, the annular piston 5 can rotate circumferentially in the hydraulic cylinder, a movable end fluted disc 8 is fixed at one end, close to the rear flange 11 of the main shaft, of the annular piston 5 through screws, the movable end fluted disc 8 rotates synchronously with the main shaft body 1 through key connection, a fixed end fluted disc 9 is fixed on the rear flange 11 of the main shaft through screws, and the fixed end fluted disc 9 is meshed with the movable end fluted disc 8. The hydraulic cylinder, the outer spindle sleeve 15, the annular piston 5, the fixed end fluted disc 9 and the movable end fluted disc 8 are all arranged coaxially, and the outer spindle sleeve 15 provides support for all parts of the spindle and is fixed in a spindle hole of the machine body.
The application method of the embodiment comprises the following steps: when the main shaft body 1 is required to drive the cutter to rotate, such as milling, drilling, tapping and the like, the annular piston 5 drives the movable end toothed disc 8 to be separated from the fixed end toothed disc 9, so that the main shaft body 1 can freely rotate. When a tool needs to be fixedly machined, if turning is carried out, the turning tool is replaced, and the annular piston 5 drives the movable end-toothed disc 8 to be meshed with the fixed end-toothed disc 9, so that the radial rotation of the main shaft is limited.
Example 2
This example is substantially the same as example 1, except that: as shown in fig. 1-2, oil inlets and oil outlets 6 are formed on the hydraulic cylinders on both sides of the annular piston 5. The oil inlet and outlet 6 is connected with an electromagnetic hydraulic valve, and oil inlet and outlet conversion is realized under the control of the electromagnetic hydraulic valve, so that the annular piston 5 advances and retreats, and the movable end toothed disc 8 and the fixed end toothed disc 9 are driven to be meshed and separated.
The specific using method comprises the following steps: when the tool needs to be subjected to rotary machining, such as milling, drilling, tapping and the like, the numerical control system sends a signal to the electromagnetic hydraulic valve, the electromagnetic hydraulic valve acts, the oil inlet and outlet 6 on the right side supplies oil, the oil inlet and outlet 6 on the left side returns oil, the annular piston 5 is pushed to move leftwards, the movable end toothed disc 8 is driven to be separated from the fixed end toothed disc 9, and the main shaft can freely rotate.
When the turning tool needs to be fixed and machined in the next step, if turning is carried out, the turning tool is replaced, the numerical control system sends a signal to the electromagnetic hydraulic valve, the electromagnetic hydraulic valve acts, the oil inlet and outlet 6 on the right side returns oil, the oil inlet and outlet 6 on the left side supplies oil, the piston is pushed to move rightwards, and therefore the movable end toothed disc 8 is driven to be meshed with the fixed end toothed disc 9.
The pneumatic cylinder includes the hydro-cylinder body 4, the annular inner tube that the axial runs through is fixed with in the hydro-cylinder body 4, annular inner tube suit is in the outside of main shaft body 1, the hydro-cylinder body 4 passes through the fix with screw in the terminal surface of main shaft rear flange 11, the hydro-cylinder body 4 internal fixation has the hydro-cylinder lid 7, annular piston 5 is including the movable tube of suit in the annular inner tube outside, annular inner tube axial displacement can be followed to the movable tube, also can follow annular inner tube circumference rotatory, the one end of movable tube is fixed with annular cock body, the other end slides and passes the hydro-cylinder lid 7 and links to each other with movable end fluted disc 8, all be provided with business turn over hydraulic fluid port 6 on the hydro-cylinder body 4 of annular cock body both sides.
Example 3
This embodiment is substantially the same as embodiment 1 or 2, except that: as shown in fig. 1-2, a synchronous pulley 3 is further fixed on the outer side of the main shaft body 1 in a sleeved manner, the synchronous pulley 3 is fixed on the main shaft through the expansion sleeve 2, and the synchronous pulley 3 is located on one side of the hydraulic cylinder, which is far away from the main shaft outer sleeve 15. When the cutter needs to be machined in a rotating mode, the movable end toothed disc 8 is separated from the fixed end toothed disc 9, and the main shaft power motor drives the synchronous belt pulley 3 through the synchronous belt to drive the main shaft to rotate, so that the milling function is achieved. If the cutter needs to be fixedly machined, the main shaft power motor is stopped, the movable end fluted disc 8 is meshed with the fixed end fluted disc 9, the radial rotation of the main shaft is limited under the double action of the electromagnetic locking force of the main shaft power motor and the mechanical locking force of the end fluted disc, and powerful turning can be realized.
Example 4
This embodiment is substantially the same as embodiment 1 or 2 or 3 or 4, except that: as shown in fig. 1-2, the main shaft rear flange 11 is connected to the rear end of the main shaft outer sleeve 15, the rear end of the main shaft outer sleeve 15 is rotatably connected to the main shaft outer sleeve 15 through a double-row cylindrical roller bearing II19, and the front end of the main shaft outer sleeve 15 is rotatably connected to the main shaft body 1 through a front support mechanism. Two end face keys 23 are arranged at the front end of the main shaft body 1, the end face keys 23 are fixed on the front end face of the main shaft body 1 through screws and matched with grooves in the BT40 cutter handle to transmit torque to a cutter from the main shaft, and the synchronous pulley 3 is fixed at the rear end of the main shaft body 1.
The front supporting mechanism comprises a front locking nut 16, a front bearing spacer 17, an angular contact ball bearing 18, a double-row cylindrical roller bearing I13, a front retaining ring 20 and a main shaft front sealing cover 22 which are sequentially sleeved on the main shaft body 1 from back to front, the front locking nut 16, the front bearing spacer 17, the angular contact ball bearing 18 and the double-row cylindrical roller bearing I13 are located between the main shaft outer sleeve 15 and the main shaft body 1, a main shaft front flange 21 is sleeved on the outer side of the front retaining ring 20, the main shaft front sealing cover 22 is located on the front side of the main shaft outer sleeve 15, the main shaft front flange 21 is located between the main shaft outer sleeve 15 and the main shaft front sealing cover 22, and the front locking nut 16 is a precision locking nut. The front support mechanism provides pretightening force and sealing for the front support, and ensures that the radial jump and the axial leap of the main shaft are within an allowable error.
The main shaft body 1 in front of the double-row cylindrical roller bearing II19 is provided with a rear bearing spacer 14, the main shaft body 1 in the rear is provided with a rear bearing sealing cover 12, and the main shaft body 1 in the rear of the rear bearing sealing cover 12 is provided with a rear locking nut 10. The rear locking nut 10 is a precision locking nut which is mainly used for pre-tightening the double-row cylindrical roller bearing II19, the rear bearing sealing cover 12 is mainly used for axially fastening and sealing a bearing, and the rear bearing spacer 14 is mainly used for axially positioning and dismounting the bearing of the double-row cylindrical roller bearing II 19.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a hydraulic locking turn-milling spindle unit which characterized in that: the main shaft locking mechanism comprises a main shaft body and a main shaft outer sleeve, the main shaft outer sleeve is rotatably sleeved on the outer side of the main shaft body, the main shaft body is further provided with a hydraulic locking mechanism, the hydraulic locking mechanism comprises an annular hydraulic cylinder, the hydraulic cylinder is sleeved on the outer side of the main shaft body and fixedly connected with the main shaft outer sleeve through a main shaft rear flange, an annular piston moving axially is arranged in the hydraulic cylinder, the annular piston can rotate circumferentially in the hydraulic cylinder, a movable end fluted disc is arranged at one end, close to the main shaft rear flange, of the annular piston, the movable end fluted disc synchronously rotates with the main shaft body through key connection, and a fixed end fluted disc meshed with the movable end fluted disc is arranged on the main shaft rear flange.
2. The hydraulically locked turn-milling spindle unit of claim 1, wherein: and oil inlet and outlet ports are arranged on the hydraulic cylinders on two sides of the annular piston.
3. A hydraulically locking turn-milling spindle unit according to claim 1 or 2, characterized in that: the outer side of the main shaft body is also sleeved and fixed with a synchronous belt pulley.
4. A hydraulically locking turn-milling spindle unit according to claim 3, characterized in that: the synchronous belt wheel is positioned on one side of the hydraulic cylinder far away from the outer sleeve of the main shaft.
5. A hydraulically locking turn-milling spindle unit according to claim 1 or 4, characterized in that: the hydraulic locking mechanism is positioned at the rear end of the main shaft body, two end face keys are arranged at the front end of the main shaft body, a main shaft rear flange is connected with the rear end of a main shaft outer sleeve, the rear end of the main shaft outer sleeve is rotatably connected with the main shaft outer sleeve through a double-row cylindrical roller bearing I, and the front end of the main shaft outer sleeve is rotatably connected with the main shaft body through a front supporting mechanism.
6. The hydraulically locked turn-milling spindle unit of claim 5, wherein: the front supporting mechanism comprises a front locking nut, a front bearing spacer bush, an angular contact ball bearing, a double-row cylindrical roller bearing, a front check ring and a front main shaft sealing cover which are sequentially sleeved on the main shaft body from back to front, a front main shaft flange is sleeved on the outer side of the front check ring and positioned on the front side of the outer main shaft sleeve, and the front main shaft flange is positioned between the outer main shaft sleeve and the front main shaft sealing cover.
7. The hydraulically locked turn-milling spindle unit of claim 5, wherein: a rear bearing spacer bush is arranged on the main shaft body on the front side of the double-row cylindrical roller bearing I, a rear bearing sealing cover is arranged on the main shaft body on the rear side, and a rear locking nut is arranged on the main shaft body on the rear side of the rear bearing sealing cover.
8. A hydraulically locking turn-milling spindle unit according to claim 1 or 2, characterized in that: the pneumatic cylinder includes the hydro-cylinder body, is provided with the annular inner tube that the axial runs through in the hydro-cylinder body, and annular inner tube suit is in the outside of main shaft body, and the hydro-cylinder body internal fixation has the hydro-cylinder cap, and annular piston includes the loose tube of suit in the annular inner tube outside, and the one end of loose tube is fixed with annular cock body, and the other end slides and passes the hydro-cylinder cap and link to each other with the loose end fluted disc, all is provided with the business turn over hydraulic fluid port on the hydro-cylinder body of annular cock body both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121387621.1U CN215144748U (en) | 2021-06-22 | 2021-06-22 | Hydraulic locking turning and milling spindle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121387621.1U CN215144748U (en) | 2021-06-22 | 2021-06-22 | Hydraulic locking turning and milling spindle unit |
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| Publication Number | Publication Date |
|---|---|
| CN215144748U true CN215144748U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121387621.1U Active CN215144748U (en) | 2021-06-22 | 2021-06-22 | Hydraulic locking turning and milling spindle unit |
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| CN (1) | CN215144748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117600917A (en) * | 2023-11-08 | 2024-02-27 | 上海诺倬力机电科技有限公司 | Horizontal five-axis machining center |
-
2021
- 2021-06-22 CN CN202121387621.1U patent/CN215144748U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117600917A (en) * | 2023-11-08 | 2024-02-27 | 上海诺倬力机电科技有限公司 | Horizontal five-axis machining center |
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