CN218927406U - Motorized spindle device - Google Patents
Motorized spindle device Download PDFInfo
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- CN218927406U CN218927406U CN202220969796.1U CN202220969796U CN218927406U CN 218927406 U CN218927406 U CN 218927406U CN 202220969796 U CN202220969796 U CN 202220969796U CN 218927406 U CN218927406 U CN 218927406U
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- piston
- bearing
- clamping sleeve
- electric spindle
- clamping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses an electric spindle device, which comprises an electric spindle, wherein one end of the electric spindle is used for being connected with a polishing head; the clamping sleeve is used for clamping the motorized spindle; the outer seat is internally provided with a containing cavity, and the clamping sleeve is positioned in the containing cavity; the joint bearing is positioned in the accommodating cavity, and the clamping sleeve is rotatably arranged on the outer seat through the joint bearing; the piston is arranged at one end of the outer seat far away from the polishing head and is positioned in the accommodating cavity; the piston can be connected with the clamping sleeve, so that the piston and the polishing head keep dynamic balance of the electric spindle. According to the technical scheme, dynamic balance is realized on the electric spindle through the piston and the clamping sleeve, and the floating centering sensitivity of the electric spindle and the flexibility and portability of the electric spindle device are improved.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to an electric spindle device.
Background
In the prior art, an electric spindle with high precision is particularly important in the field of machine manufacturing. When the existing electric spindle device is used, a cutter needs to be fixed at the front end of the electric spindle body, and the electric spindle body drives the cutter to rotate and enables the rotating cutter to relatively move relative to a workpiece to process the workpiece.
The electric spindle device is provided with a piston or a gas ring for adjusting the balance state of the electric spindle and a bearing for rotating along with the electric spindle, and the bearing supports the electric spindle in a rotatable manner; when the tool is used, collision between the tool and a workpiece can occur, and at the moment, the piston or the gas ring in the electric spindle can carry out floating adjustment on the electric spindle, so that the tool maintains a balanced state. The piston of the existing electric spindle device is close to the polishing end of the electric spindle, the bearing is far away from the polishing end, the sensitivity of floating adjustment of the polishing end is low, and the electric spindle device with higher floating adjustment sensitivity is urgently needed.
Disclosure of Invention
The utility model mainly aims to provide an electric spindle device, which aims to solve the problems of insensitivity in floating back of an electric spindle and heavy electric spindle device in the existing electric spindle device processing.
In order to achieve the above object, the present utility model provides an electric spindle device, including:
one end of the electric spindle is used for being connected with the polishing head;
the clamping sleeve is used for clamping the motorized spindle;
an outer seat, the outer seat is internally provided with a containing cavity, and the clamping sleeve is positioned in the containing cavity
The joint bearing is positioned in the accommodating cavity, and the clamping sleeve is rotatably arranged on the outer seat through the joint bearing;
the piston is arranged at one end of the outer seat far away from the polishing head and is positioned in the accommodating cavity; the piston can be connected with the clamping sleeve, so that the piston and the polishing head keep dynamic balance of the electric spindle.
Preferably, a piston duct is provided at an end of the outer seat remote from the grinding head, the piston duct being provided along a circumferential direction of the outer seat, the piston being movably provided in the piston duct so as to be connected with the clamping sleeve.
Preferably, the piston comprises a piston body and a sealing element, wherein the sealing element is arranged on the piston body and is used for sealing the piston pore canal; and gas is introduced into the piston pore canal to drive the piston body to be movably arranged in the piston pore canal.
Preferably, the motorized spindle further comprises a rear end cover seat, the rear end cover seat comprises a connecting portion and a ventilation portion, the connecting portion is connected with the outer seat, a vent hole is formed in the ventilation portion, and gas is introduced into the piston pore channel through the vent hole.
Preferably, the joint bearing further comprises a sealing ring, wherein the sealing ring is arranged on the outer seat, and the sealing ring is positioned between the ventilation part and the outer seat.
Preferably, the knuckle bearing comprises a bearing inner ring and a bearing outer ring, the bearing outer ring is connected with the outer seat, the bearing inner ring is connected with the clamping sleeve, and the bearing outer ring and the bearing inner ring can rotate relatively.
Preferably, the motorized spindle device further comprises a protrusion and a first fixing portion, wherein the protrusion and the first fixing portion are respectively arranged on the clamping sleeve, and the bearing inner ring is sleeved outside the clamping sleeve and located between the protrusion and the first fixing portion.
Preferably, the motorized spindle device further comprises a bearing cover, wherein the outer seat is provided with a second fixing part, and the bearing cover is fixedly connected with the outer seat and used for fixing the bearing outer ring between the bearing cover and the second fixing part.
Preferably, the electric spindle device further comprises a front dust cover, and the electric spindle device further comprises a connecting piece, wherein the end part of the connecting piece sequentially penetrates through the front dust cover and the bearing gland to be fixedly connected with the outer seat.
Preferably, the clamping sleeve comprises a clamping part and a clamping sleeve connecting part, wherein the clamping part is positioned at one side close to the polishing head, and the clamping sleeve connecting part is positioned at one side far away from the polishing head; the clamping part is connected with the motorized spindle, the clamping sleeve connecting part is connected with the knuckle bearing, and the clamping sleeve connecting part is used for fixing the knuckle bearing.
According to the technical scheme, the floating sensitivity of the electric spindle device is improved when the electric spindle device is used by using the piston to float and adjust the electric spindle, the piston pore canal is integrated in the outer seat, the weight of the electric spindle device is reduced, and the machining fineness of the electric spindle device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electric spindle device according to the present embodiment;
FIG. 2 is a schematic view of a sectional A-A structure of the motorized spindle device according to the present embodiment;
fig. 3 is a schematic B-B sectional structure of the motorized spindle device according to the present embodiment.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the |
| 10 | |
100 | Motorized |
| 110 | Polishing head | 200 | Clamping |
| 210 | |
220 | |
| 230 | Clamping |
240 | Clamping |
| 300 | |
310 | Accommodating |
| 320 | Piston |
330 | Second fixing |
| 400 | Joint bearing | 410 | |
| 420 | Bearing |
430 | Bearing |
| 500 | Piston | 510 | Piston |
| 520 | |
||
| 600 | Rear |
610 | Connecting |
| 620 | |
621 | |
| 700 | |
800 | |
| 900 | |
1000 | Connecting piece |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Currently, an electric spindle device has become one of widely used machining equipment. However, in the using process of the existing electric spindle, the electric spindle is shifted due to collision between the grinding cutter and the workpiece, so that the operation of workers is affected, high-precision operation cannot be performed, meanwhile, too many components enable the electric spindle device to be too heavy, the requirements of flexibility and portability of the electric spindle device cannot be met, and inconvenience is brought to production and processing.
The present utility model proposes an electric spindle device 10, the electric spindle device 10 comprising:
an electric spindle 100, wherein one end of the electric spindle 100 is used for being connected with a polishing head 110;
a clamping sleeve 200, wherein the clamping sleeve 200 is used for clamping the motorized spindle 100;
an outer seat 300, wherein a containing cavity 310 is formed in the outer seat 300, and the clamping sleeve 200 is positioned in the containing cavity 310;
a knuckle bearing 400, wherein the knuckle bearing 400 is positioned in the accommodating cavity 310, and the clamping sleeve 200 is rotatably arranged on the outer seat 300 through the knuckle bearing 400;
a piston 500, wherein the piston 500 is disposed at one end of the outer seat 300 away from the polishing head 110 and is located in the accommodating cavity 310; the piston 500 can be connected to the clamping sleeve 200, so that the piston 500 and the sanding head 110 maintain the dynamic balance of the motorized spindle 100.
Specifically, as shown in fig. 1 to 3, when a workpiece is machined, one end of the electric spindle 100 is connected with the polishing head 110, the polishing head 110 is used for clamping a polishing tool, the other end of the electric spindle 100 is connected with a motor, the motor drives the electric spindle 100 to rotate, and the polishing head 110 rotates along with the rotation of the electric spindle 100; when the polishing tool is in rotary contact with the workpiece to be machined, burrs on the workpiece to be machined are polished off by the polishing tool, the collision between the tool and the workpiece in the polishing process can cause displacement of the electric spindle 100, and the piston 500 is matched with the clamping sleeve 200, so that the electric spindle 100 returns to an initial position after being displaced, namely, the electric spindle 100 achieves the function of floating back.
As shown in fig. 2, in the present embodiment, a piston hole 320 is provided at an end of the outer seat 300 remote from the sanding head 110, the piston hole 320 is provided along a circumferential direction of the outer seat 300, and the piston 500 is movably provided in the piston hole 320 so as to be connected with the clamping sleeve 200.
In detail, in this embodiment, the piston hole 320 is integrated on the outer seat 300, so that no additional fixing device for the piston 500 is needed, the overall weight of the electric spindle device 10 is reduced, and the portability of the electric spindle device 10 is improved; the piston channels 320 are arranged along the circumferential direction of the electric spindle 100, the number of the piston channels 320 is 13, and 13 pistons 500 simultaneously act on the electric spindle 100 through the piston channels 320, so as to ensure the stability of the electric spindle 100 during processing.
As shown in fig. 3, in the present embodiment, the piston 500 includes a piston body 510 and a connecting portion 520, the sealing member 520 is disposed on the piston body 510, and the sealing member 520 is used to seal the piston hole 320; the piston hole 320 is filled with gas to drive the piston body 510 to be movably disposed in the piston hole 320.
Wherein, in general, the piston 500 is integrally molded, the piston 500 is air-tight by means of the sealing member 520 abutting against the inner wall of the piston duct 320, and the diameter of the sealing member 520 is larger than that of the piston body 510, i.e. only the sealing member 520 contacts with the piston duct 320 in the piston 500, so that the piston 500 can flexibly move while realizing air-tightness.
In another embodiment, the piston hole 320 is annular, the clamping sleeve 200 is connected by a gas ring instead of the piston 500, the gas ring has air tightness, and the gas is introduced into the piston hole 320 to drive the gas ring to abut against the clamping sleeve 200.
In this embodiment, the electric spindle 100 further includes a rear end cap base 600, the rear end cap base 600 includes a connecting portion 610 and a ventilation portion 620 that are connected to each other, the ventilation portion 620 is connected to the outer base 300 through the connecting portion 610, and a ventilation hole 621 is disposed on the ventilation portion 620, and gas is introduced into the piston duct 320 through the ventilation hole 621.
The ventilation part 620 is connected to an external ventilation device for adjusting the air pressure in the piston duct 320, and the external ventilation device is communicated with the ventilation hole 621 through the ventilation part 620 so that the air pressure can enter the piston duct 320.
In detail, in this embodiment, all the piston ports 320 are communicated with each other to achieve the same air pressure; the motorized spindle device 10 further comprises a sensor and an air pressure controller, when the sensor senses that the motorized spindle 100 works, a signal is sent to the air pressure controller, the air pressure controller introduces positive air pressure into the piston pore channels 320, the positive air pressure enters each piston pore channel 320 through the air holes 621, the air pressure difference between the piston pore channels 320 is balanced, the piston 500 pushes the piston 500 to apply pressure to the clamping sleeve 200 at the same time, the motorized spindle 100 is stabilized, and after the air pressure controller stops ventilation, the piston 500 lacks air pressure pushing and falls back into the piston pore channels 320, and the piston 500 is separated from the clamping sleeve 200.
In this embodiment, the knuckle bearing 400 further includes a seal ring 410, the seal ring 410 is disposed on the outer seat 300, and the seal ring 410 is located between the ventilation portion 620 and the outer seat 300.
In detail, the material of the sealing ring 410 includes, but is not limited to, a silica gel material, and in this embodiment, the sealing ring 410 is made of a silica gel material for the air pressure leakage between the ventilation portion 620 and the outer seat 300 of the house.
In this embodiment, the motorized spindle device 10 further includes a protrusion 210 and a first fixing portion 220 that are respectively disposed on the clamping sleeve 200, and the bearing inner ring 420 is sleeved outside the clamping sleeve 200 and is located between the protrusion 210 and the first fixing portion 220.
The space between the protrusion 210 and the first fixing portion 220 is just the space of the bearing inner ring 420, so as to fix the bearing inner ring 420, and prevent the knuckle bearing 400 from moving in the outer seat 300 due to the shake of the electric spindle 100 during operation.
In detail, the bearing inner ring 420 and the bearing outer ring 430 can rotate relatively, and the bearing inner ring 420 rotates with the rotation of the motorized spindle 100 and/or the clamping sleeve 200; in this embodiment, the spherical plain bearing 400 further has a damping function, and the floating energy of the motorized spindle 100 is reduced by the collision between the bearing inner ring 420 and the bearing outer ring 430.
In this embodiment, the electric spindle apparatus 10 further includes a bearing cover 700, where the bearing cover 700 is fixedly connected to the outer seat 300, and a second fixing portion 330 is disposed on the outer seat 300, for fixing the bearing outer ring 430 between the bearing cover 700 and the second fixing portion 330.
In this embodiment, the bearing cover 700 is L-shaped, one end of the bearing cover 700 is fixed on the outer seat 300, the other end of the bearing cover 700 is matched with the second fixing portion 330 on the outer seat 300 to form a fixing area for fixing the outer bearing seat 300, so that the bearing outer ring 430 is fixed in the fixing area of the outer bearing seat 300, and the bearing outer ring 430 does not move relatively to the electric spindle device 10 during the working process of the electric spindle device 10, thereby ensuring the stability of the joint bearing 400 and the outer seat 300 and also ensuring the stability of the electric spindle 100.
In this embodiment, the electric spindle device 10 further includes a front dust cover 800, the electric spindle device 10 further includes a connector 1000, and an end portion of the connector 1000 sequentially passes through the front dust cover 800 and the bearing cover 700 to be fixedly connected with the outer seat 300.
In detail, the present embodiment further includes a rear dust cover 900 disposed corresponding to the front dust cover 800, and the fixing manner of the front dust cover 800 and the rear dust cover 900 includes, but is not limited to, using fastening screws to connect with the clamping sleeve 200 and the outer seat 300, respectively, and the connection scheme used in the present embodiment is to horizontally dispose threaded holes on the clamping sleeve 200 and the outer seat 300, and fix the front dust cover 800 and the rear dust cover 900 to the clamping sleeve 200 and the outer seat 300 through a connector 1000, that is, screws, and the front dust cover 800 and the rear dust cover 900 have inclination angles when being installed in the present embodiment, so as to increase the ventilation area and improve the heat dissipation capability of the electric spindle device 10.
In this embodiment, the clamping sleeve 200 includes a clamping portion 230 and a clamping sleeve connecting portion 240, the clamping portion 230 being located at a side close to the polishing head 110, the clamping sleeve connecting portion 240 being located at a side far from the polishing head 110; the clamping part 230 is connected with the motorized spindle 100, the clamping sleeve connecting part 240 is connected with the knuckle bearing 400, and the clamping sleeve connecting part 240 is used for fixing the knuckle bearing 400.
In detail, in this embodiment, the screwing structure has a fastening screw, the screwing structure is fixed in a locked state or an unlocked state by the fastening screw, when the screwing structure is in the locked state, the clamping part 230 is in close contact with the electric spindle 100, so that the electric spindle 100 is fixed in the accommodating cavity 310 of the electric spindle device 10, when the screwing structure is in the unlocked state, a gap is generated between the clamping part 230 and the electric spindle 100, and the gap is provided for the electric spindle 100 to unlock the space, so that the electric spindle 100 is separated from the electric spindle device 10, and the electric spindle 100 can be replaced; the connection portion 610 is configured to contact the knuckle bearing 400, and provide support capability to the clamping sleeve 200 and the motorized spindle 100 through the knuckle bearing 400.
The connection relationship of the above embodiment of the present utility model is simply described as that the electric spindle 100 is connected with the polishing head 110, the clamping sleeve 200 clamps the electric spindle 100, the clamping sleeve 200 is connected with the bearing inner ring 420 of the knuckle bearing 400, the knuckle bearing 400 is connected with the outer seat 300, the piston 500 can be connected with the clamping sleeve 200, the piston 500 is connected with the piston hole 320 provided on the outer seat 300, the rear end cover seat 600 is connected with the outer seat 300, and the bearing cover 700 is connected with the outer seat 300 and the bearing outer ring 430 of the knuckle bearing 400.
In combination with all the above embodiments, the present utility model ensures that when using the electric spindle 100, the electric spindle 100 is restrained by the cooperation of the piston 500 disposed on the outer base 300 and the clamping sleeve 200 disposed in the accommodating cavity 310, so that the electric spindle 100 is restrained by the piston 500 and the clamping sleeve 200 during processing, the occurrence of vibration caused by the contact of the grinding head 110 with a workpiece is reduced, thereby affecting the working precision, improving the floating centering sensitivity of the electric spindle device 10 during processing, integrating the piston duct 320 onto the outer base 300, reducing the number of components of the piston duct 320, reducing the weight of the electric spindle device 10, and improving the practicability of the electric spindle device 10 during production.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. An electric spindle apparatus, comprising:
one end of the electric spindle is used for being connected with the polishing head;
the clamping sleeve is used for clamping the motorized spindle;
the outer seat is internally provided with a containing cavity, and the clamping sleeve is positioned in the containing cavity;
the joint bearing is positioned in the accommodating cavity, and the clamping sleeve is rotatably arranged on the outer seat through the joint bearing;
the piston is arranged at one end of the outer seat far away from the polishing head and is positioned in the accommodating cavity; the piston can be connected with the clamping sleeve, so that the piston and the polishing head keep dynamic balance of the electric spindle.
2. The motorized spindle assembly of claim 1, wherein an end of the outer housing remote from the sanding head is provided with a piston bore, the piston bore being disposed circumferentially of the outer housing, the piston being movably disposed within the piston bore for connection with the clamping sleeve.
3. The motorized spindle assembly of claim 2, wherein the piston comprises a piston body and a seal disposed on the piston body, the seal for sealing against the piston bore; and gas is introduced into the piston pore canal to drive the piston body to be movably arranged in the piston pore canal.
4. The motorized spindle assembly of claim 2, further comprising a rear end cap base including a connecting portion and a vent portion connected to each other, the vent portion being connected to the outer base by the connecting portion, the vent portion having a vent hole therein through which gas is vented to the piston bore.
5. The motorized spindle device as recited in claim 4, wherein the knuckle bearing further comprises a seal ring disposed on the outer seat, the seal ring being located between the vent portion and the outer seat.
6. The motorized spindle assembly of claim 1, wherein the knuckle bearing comprises a bearing inner race and a bearing outer race, the bearing outer race coupled to the outer housing, the bearing inner race coupled to the clamping sleeve, the bearing outer race and the bearing inner race being rotatable relative to each other.
7. The motorized spindle assembly of claim 6, further comprising a protrusion and a first securing portion disposed on the clamping sleeve, respectively, wherein the bearing inner race is disposed outside the clamping sleeve and between the protrusion and the first securing portion.
8. The motorized spindle assembly of claim 6, further comprising a bearing cap, wherein the outer housing is provided with a second securing portion, the bearing cap being fixedly coupled to the outer housing for securing the bearing outer race between the bearing cap and the second securing portion.
9. The motorized spindle assembly of claim 8, further comprising a front dust cap, and further comprising a connector having an end portion that is fixedly coupled to the outer housing sequentially through the front dust cap and the bearing cap.
10. The motorized spindle assembly of claim 1, wherein the clamping sleeve includes a clamping portion and a clamping sleeve connecting portion, the clamping portion being located on a side proximate the sanding head and the clamping sleeve connecting portion being located on a side distal from the sanding head; the clamping part is connected with the motorized spindle, the clamping sleeve connecting part is connected with the knuckle bearing, and the clamping sleeve connecting part is used for fixing the knuckle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220969796.1U CN218927406U (en) | 2022-04-25 | 2022-04-25 | Motorized spindle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220969796.1U CN218927406U (en) | 2022-04-25 | 2022-04-25 | Motorized spindle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218927406U true CN218927406U (en) | 2023-04-28 |
Family
ID=86061142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220969796.1U Active CN218927406U (en) | 2022-04-25 | 2022-04-25 | Motorized spindle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218927406U (en) |
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2022
- 2022-04-25 CN CN202220969796.1U patent/CN218927406U/en active Active
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