CN107116387B - Electric spindle reverse tool unloading cylinder - Google Patents
Electric spindle reverse tool unloading cylinder Download PDFInfo
- Publication number
- CN107116387B CN107116387B CN201710363526.XA CN201710363526A CN107116387B CN 107116387 B CN107116387 B CN 107116387B CN 201710363526 A CN201710363526 A CN 201710363526A CN 107116387 B CN107116387 B CN 107116387B
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- Prior art keywords
- cylinder
- piston
- cylinder body
- broach
- bearing
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Classifications
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- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Gripping On Spindles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to the technical field of cylinders, in particular to an electric spindle return tool removing cylinder which comprises a cylinder top cover, an outer sleeve, a cylinder main body, a tool pulling plate, a tool pulling seat, a supporting seat, a shaft core assembly, a limiting nut, an upper bearing, a lower bearing gland, an upper bearing cover plate and a push rod, wherein the lower bearing gland is arranged below the lower bearing, the upper bearing cover plate is arranged above the upper bearing, and the push rod is fixedly connected with the cylinder top cover through threads; a first spring is connected between the broach holder and the third cylinder body, the cylinder main body is installed on the broach plate through a third screw, and the upper bearing is elastically pre-tightened through a second spring; the cylinder main body is connected with the broach plate through a third spring; the middle part of the shaft core component is provided with a pull rod, and both sides of the pull rod are provided with pull rod springs. Therefore, the electric spindle reverse tool unloading cylinder can reduce the impact force on the bearing when the cylinder unloads the tool, and can change the direction of the impact force, so that the direction of the impact force is the same as the required stress direction of the bearing, and the service life of the bearing is prolonged.
Description
Technical Field
The invention relates to the technical field of cylinders, in particular to an electric spindle return tool unloading cylinder.
Background
When an electric spindle cylinder in the prior art is used for unclamping, a cylinder piston directly pushes a spindle pull rod, and a pull rod spring transmits the force to a spindle core assembly. The upper bearing arranged on the shaft core assembly adopts elastic pretension and can move in the axial direction, and the axial force on the shaft core has little influence on the upper bearing. The lower bearing outer ring is axially pre-tightened by rigid positioning, the acting force of the shaft core assembly is directly transmitted to the bearing inner ring, the force is equal to the force for detaching the cutter of the main shaft to reduce the pre-tightening force of the upper bearing under the condition of not considering gravity and friction force, the pre-tightening force of the upper bearing is far smaller than the force for detaching the cutter of the main shaft and can be ignored, and the stress of the lower bearing is approximately equal to the thrust of the cylinder piston acting on the pull rod during cutter detaching. That is, because the angular contact ball bearing used by the high-speed electric spindle has the characteristic of unidirectional stress requirement in the axial direction, when the spindle is dismounted, the cylinder can generate great impact force on the lower bearing, and the direction of the impact force is opposite to the stress direction required by the lower bearing, so that the service life of the bearing is seriously influenced.
In addition, no matter the pull rod spring is reset or in a tension state, the elasticity is very large, the cylinder unclamping speed is extremely high, the acting force of the cylinder on the bearing in the unclamping process is an impact force, the ball and the roller path of the bearing can be damaged, and the service life of the bearing is further shortened.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the electric spindle return tool unloading cylinder which not only can reduce the impact force on the bearing when the cylinder unloads the tool, but also can change the direction of the impact force, so that the direction of the impact force is the same as the required stress direction of the bearing, and the service life of the bearing is prolonged.
In order to realize the purpose, the invention provides the following technical scheme:
the electric spindle reverse tool removing air cylinder comprises an outer sleeve, an air cylinder top cover arranged at the top in the outer sleeve, an air cylinder main body arranged in the outer sleeve and below the air cylinder top cover, a broach plate connected with the air cylinder main body and arranged below the air cylinder main body, a broach seat used for fixing the broach plate, a support seat used for fixing the broach seat and enabling the broach seat to move up and down along the axial direction, a spindle assembly sleeved with the support seat, a limit nut arranged at the upper part of the spindle assembly, an upper bearing arranged at the upper side part of the spindle assembly, a lower bearing arranged at the lower side part of the spindle assembly, a lower bearing gland arranged below the lower bearing and used for rigidly positioning and pre-tightening the lower bearing, an upper bearing cover plate arranged above the upper bearing, and a push rod fixedly connected with the air cylinder top cover through threads;
the dust blowing device also comprises a reset guide joint, a dust blowing guide joint and a striking cutter guide joint which are arranged on the top cover of the air cylinder, a reset air pipe joint connected with the reset guide joint, a dust blowing air pipe joint connected with the dust blowing guide joint and a striking cutter air pipe joint connected with the striking cutter guide joint;
the cylinder body is provided with a first air passage and a second air passage, wherein the first air passage is arranged on the side part of the cylinder body and communicated with the interior of the cylinder body; the first air path is communicated with the cutter striking guide joint, and the second air path is communicated with the reset guide joint;
the cylinder body comprises a first cylinder body, a second cylinder body and a third cylinder body which are sequentially connected, a first piston arranged in the first cylinder body and inserted into the second cylinder body, a second piston arranged in the second cylinder body and inserted into the third cylinder body, and a third piston arranged in the third cylinder body and connected with the broach seat; the first piston, the second piston and the third piston are fixedly connected through a first screw; the broach seat is fixed on the third piston through a second screw; the first cylinder body, the second cylinder body and the third cylinder body are all fixedly connected with the cylinder top cover;
a first spring is connected between the broach seat and the third cylinder body, the cylinder main body is installed on the broach plate through a third screw, and the upper bearing is elastically pre-tightened through a second spring; the cylinder body is connected with the broach plate through a third spring;
the middle part of the shaft core assembly is provided with a pull rod, and pull rod springs are arranged on two sides of the pull rod.
The seals of the first air path and the second air path are sealed through plugs.
The first air path and the second air path are both provided with first sealing pieces.
And second sealing pieces are assembled between the first cylinder body and the excircle of the first piston, between the second cylinder body and the excircle of the second piston, and between the third cylinder body and the excircle of the third piston.
Third sealing elements are assembled between the first cylinder and the inner circle of the first piston, between the second cylinder and the inner circle of the second piston, and between the third cylinder and the inner circle of the third piston.
And a fourth sealing element is arranged at the matching position of the first cylinder body and the second cylinder body.
And a fifth sealing element is arranged at the matching position of the first piston and the second piston.
The outer peripheral wall of the broach seat and the inner hole wall of the supporting seat are in intermittent fit.
The limiting nut is fixedly installed on the shaft core assembly through thread matching.
The invention has the beneficial effects that:
(1) The invention relates to an electric spindle reverse tool unloading cylinder which comprises an outer sleeve, a cylinder top cover arranged at the top in the outer sleeve, a cylinder main body arranged in the outer sleeve and below the cylinder top cover, a broach plate connected with the cylinder main body and arranged below the cylinder main body, a broach seat used for fixing the broach plate, a supporting seat used for fixing the broach seat and enabling the broach seat to move up and down along the axial direction, a shaft core assembly sleeved with the supporting seat, a limit nut arranged at the upper part of the shaft core assembly, an upper bearing arranged at the upper side part of the shaft core assembly, a lower bearing arranged at the lower side part of the shaft core assembly, a lower bearing gland arranged below the lower bearing and used for rigidly positioning and pre-tightening the lower bearing, an upper bearing cover plate arranged above the upper bearing, and a push rod fixedly connected with the cylinder top cover through threads; a first spring is connected between the broach seat and the third cylinder body, the cylinder main body is installed on the broach plate through a third screw, and the upper bearing is elastically pre-tightened through a second spring; the cylinder main body is connected with the broach plate through a third spring; the middle part of the shaft core component is provided with a pull rod, and both sides of the pull rod are provided with pull rod springs. Therefore, the electric spindle reverse tool unloading cylinder can reduce the impact force on the bearing when the cylinder unloads the tool, and can change the direction of the impact force, so that the direction of the impact force is the same as the required stress direction of the bearing, and the service life of the bearing is prolonged.
(2) The electric spindle reverse tool unloading cylinder has the characteristics of simple structure, low production cost and suitability for large-scale production.
Drawings
Fig. 1 is a schematic structural diagram of an electric spindle reverse tool unloading cylinder in a cylinder reset state.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.
Fig. 4 is a partial structural schematic diagram of a tool striking process of an electric spindle reverse tool removing cylinder according to the first embodiment of the invention.
Fig. 5 is a partial structural schematic diagram of a tool striking process II of the electric spindle reverse tool removing cylinder.
Fig. 6 is a schematic partial structure diagram of a third tool striking process of the electric spindle reverse tool removing cylinder according to the invention.
Reference numerals:
a cylinder head cover 1; a jacket 2; a broach plate 3; a broach holder 4; a support base 5; a spindle assembly 6; a limit nut 7; an upper bearing 8; a lower bearing 9; a lower bearing gland 10; an upper bearing cover plate 11; a push rod 12; a reset guide joint 13; a dust blowing guide joint 14; a unclamping guide joint 15; resetting the tracheal joint 16; a dust blowing air pipe joint 17; a cutting air pipe joint 18; a first air passage 19; a second gas path 20; a first cylinder 21; a second cylinder 22; a third cylinder 23; a first piston 24; a second piston 25; a third piston 26; a first screw 27; a second screw 28; a first spring 29; a third screw 30; a second spring 31; a third spring 32; a pull rod 33; a pull rod spring 34; a plug 35; a first seal 36; a second seal 37; a third seal 38; a fourth seal 39; a fifth seal 40.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The electric spindle reverse tool removing cylinder of the present embodiment, as shown in fig. 1 to 6, includes an outer sleeve 2, a cylinder top cap 1 disposed at the top of the outer sleeve 2, a cylinder body disposed in the outer sleeve 2 and below the cylinder top cap 1, a broach plate 3 connected to the cylinder body and disposed below the cylinder body, a broach base 4 for fixing the broach plate 3, a support base 5 for fixing the broach base 4 and enabling the broach base 4 to move up and down along an axial direction, a spindle assembly 6 sleeved with the support base 5, a limit nut 7 disposed on the upper portion of the spindle assembly 6, an upper bearing 8 disposed on the upper side portion of the spindle assembly 6, a lower bearing 9 disposed on the lower side portion of the spindle assembly 6, a lower bearing gland 10 disposed below the lower bearing 9 and used for rigidly positioning and pre-tightening the lower bearing 9, an upper bearing cover plate 11 disposed above the upper bearing 8, and a push rod 12 fixedly connected to the cylinder top cap 1 through a thread.
The electric spindle return tool unloading cylinder further comprises a reset guide joint 13, a dust blowing guide joint 14, a tool striking guide joint 15, a reset air pipe joint 16, a dust blowing air pipe joint 17 and a tool striking air pipe joint 18, wherein the reset guide joint 13, the dust blowing guide joint 14 and the tool striking guide joint 15 are arranged on the cylinder top cover 1; the electric spindle reverse tool unloading cylinder further comprises a first air path 19 which is arranged on the side part of the cylinder main body and is communicated with the interior of the cylinder main body, and a second air path 20 which is arranged on the other side part of the cylinder main body and is communicated with the interior of the cylinder main body; the first air passage 19 is communicated with the unclamping guide joint 15, and the second air passage 20 is communicated with the reset guide joint 13.
The cylinder body comprises a first cylinder body 21, a second cylinder body 22 and a third cylinder body 23 which are connected in sequence, a first piston 24 arranged in the first cylinder body 21 and inserted in the second cylinder body 22, a second piston 25 arranged in the second cylinder body 22 and inserted in the third cylinder body 23, and a third piston 26 arranged in the third cylinder body 23 and connected with the broaching tool holder 4; the first piston 24, the second piston 25 and the third piston 26 are fixedly connected by a first screw 27; the broach holder 4 is fixed to the third piston 26 by a second screw 28; the first cylinder body 21, the second cylinder body 22 and the third cylinder body 23 are all fixedly connected with the cylinder head cover 1.
A first spring 29 is connected between the broach seat 4 and the third cylinder 23, the cylinder body is mounted on the broach plate 3 through a third screw 30, and the upper bearing 8 is elastically pre-tightened through a second spring 31; the cylinder body is connected with the broach plate 3 through a third spring 32; wherein, the middle part of the shaft core component 6 is provided with a pull rod 33, and both sides of the pull rod 33 are provided with pull rod springs 34.
In this embodiment, the seals of the first air passage 19 and the second air passage 20 are sealed by plugs 35. In addition, the first air path 19 and the second air path 10 are both provided with the first sealing member 36, thereby preventing air leakage of the first air path 19 and the second air path 10.
In this embodiment, second sealing members 37 are fitted between the outer circumferences of the first cylinder 21 and the first piston 24, between the outer circumferences of the second cylinder 22 and the second piston 25, and between the outer circumferences of the third cylinder 23 and the third piston 26, respectively, thereby preventing air leakage.
In this embodiment, third sealing members 38 are fitted between the first cylinder 21 and the inner circle of the first piston 24, between the second cylinder 22 and the inner circle of the second piston 25, and between the third cylinder 23 and the inner circle of the third piston 26, thereby preventing air leakage.
In this embodiment, a fourth sealing member 39 is installed at the matching position of the first cylinder 21 and the second cylinder 22 to prevent air leakage.
In this embodiment, the fifth sealing element 40 is installed at the matching position of the first piston 24 and the second piston 25, so as to prevent air leakage.
In this embodiment, be intermittent type cooperation between the periphery wall of broach seat 4 and the inner hole wall of supporting seat 5, and then be convenient for broach seat 4 can follow 5 axial of supporting seat and reciprocate.
In this embodiment, stop nut 7 passes through screw-thread fit fixed mounting on axle core subassembly 6, and then has the characteristics of being convenient for to install fixedly.
As shown in fig. 1 to 3, in the reset state of the electric spindle reverse direction tool removing cylinder, under the action of the elastic force of the third spring 32, the cylinder body moves upwards, the top end of the cylinder top cover 1 contacts with the outer sleeve 2, and under the action of the elastic force of the first spring 29 and the reset air pressure, the third piston 26, the second piston 25 and the first piston 24 move downwards relative to the third cylinder 23, the second cylinder 22 and the first cylinder 21, so as to drive the broach plate 3 to contact with the upper bearing cover plate 11.
As shown in fig. 4 to 6, during unclamping, compressed gas enters the first air passage 19 through the unclamping air pipe connector 18 and the unclamping guide connector 15, and then enters the inside of the cylinder main body, the cylinder main body is still supported against the outer sleeve 2 and is still motionless under the action of the third spring 32, the first piston 24, the second piston 25 and the third piston 26 move upwards integrally, and then the broach plate 3 is driven to move upwards and is contacted with the limit nut 7, in the process, the broach plate 3 generates an upward impact force to the limit nut 7 which is approximately equal to the elastic force of the third spring 32 and is far smaller than the elastic force of the broach spring 34, and the direction of the impact force is upward and is consistent with the axial load direction required by the lower bearing 9 (as shown in fig. 4), at this time, the first piston 24, the second piston 25 and the third piston 26 are wholly limited by the limit nut 7, so that the first piston 24, the second piston 25 and the third piston 26 are motionless integrally. The cylinder body is separated from the outer sleeve 2 and moves downwards to drive the push rod 12 to move downwards, the downward moving process refers to fig. 5 and 6, the pull rod 33 is finally pushed to move downwards, and the cutter unloading is completed under the action of other auxiliary mechanisms. In addition, the dust blowing air pressure and the cutter unloading air pressure are disconnected, the reset air pressure is charged, and the main shaft is restored to the reset state shown in the figure 1.
In the process of striking the tool, the first cylinder 21, the second cylinder 22 and the third cylinder 23 are wholly limited by the first piston 24, the second piston 25 and the third piston 26, an upward impact force is generated on the shaft assembly 6, the impact force is close to the elastic force of the third spring 32 and is far lower than the elastic force of the pull rod spring 34, the direction of the impact force is consistent with the load direction required by the lower bearing 9, and the effect of protecting the lower bearing 9 is achieved. The push rod 12 is fixed on the cylinder body, and the push rod 12 is driven by the movement of the cylinder body to push the pull rod 33 to complete the cutter unloading action. Therefore, the electric spindle reverse tool unloading cylinder can reduce the impact force on the bearing when the cylinder unloads the tool, and can change the direction of the impact force, so that the direction of the impact force is the same as the required stress direction of the bearing, and the service life of the bearing is prolonged.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides an electricity main shaft is to returning to unload sword cylinder which characterized in that: the device comprises an outer sleeve, a cylinder top cover arranged at the top in the outer sleeve, a cylinder main body arranged in the outer sleeve and below the cylinder top cover, a broach plate connected with the cylinder main body and arranged below the cylinder main body, a broach seat used for fixing the broach plate, a support seat used for fixing the broach seat and enabling the broach seat to move up and down along the axial direction, a shaft core component sleeved with the support seat, a limiting nut arranged at the upper part of the shaft core component, an upper bearing arranged at the upper side part of the shaft core component, a lower bearing arranged at the lower side part of the shaft core component, a lower bearing gland arranged below the lower bearing and used for rigidly positioning and pre-tightening the lower bearing, an upper bearing cover plate arranged above the upper bearing, and a push rod fixedly connected with the cylinder top cover through threads;
the dust blowing device also comprises a reset guide joint, a dust blowing guide joint and a striking cutter guide joint which are arranged on the top cover of the air cylinder, a reset air pipe joint connected with the reset guide joint, a dust blowing air pipe joint connected with the dust blowing guide joint and a striking cutter air pipe joint connected with the striking cutter guide joint;
the cylinder body is provided with a first air passage and a second air passage, wherein the first air passage is arranged on the side part of the cylinder body and communicated with the interior of the cylinder body; the first air path is communicated with the cutter striking guide joint, and the second air path is communicated with the reset guide joint;
the cylinder body comprises a first cylinder body, a second cylinder body and a third cylinder body which are sequentially connected, a first piston arranged in the first cylinder body and inserted into the second cylinder body, a second piston arranged in the second cylinder body and inserted into the third cylinder body, and a third piston arranged in the third cylinder body and connected with the broach seat; the first piston, the second piston and the third piston are fixedly connected through a first screw; the broach seat is fixed on the third piston through a second screw; the first cylinder body, the second cylinder body and the third cylinder body are fixedly connected with the cylinder top cover;
a first spring is connected between the broach seat and the third cylinder body, the cylinder main body is installed on the broach plate through a third screw, and the upper bearing is elastically pre-tightened through a second spring; the cylinder main body is connected with the broach plate through a third spring;
the middle part of the shaft core component is provided with a pull rod, and two sides of the pull rod are provided with pull rod springs.
2. The electric spindle reverse tool unloading cylinder according to claim 1, characterized in that: the seals of the first air path and the second air path are sealed through plugs.
3. The electric spindle reverse tool unloading cylinder according to claim 1, characterized in that: the first air passage and the second air passage are both provided with first sealing elements.
4. The electric spindle reverse tool unloading cylinder according to claim 1, characterized in that: and second sealing pieces are assembled between the first cylinder body and the excircle of the first piston, between the second cylinder body and the excircle of the second piston, and between the third cylinder body and the excircle of the third piston.
5. The electric spindle reverse tool unloading cylinder according to claim 1, characterized in that: third sealing elements are assembled between the first cylinder and the inner circle of the first piston, between the second cylinder and the inner circle of the second piston and between the third cylinder and the inner circle of the third piston.
6. The electric spindle reverse tool unloading cylinder according to claim 1, characterized in that: and a fourth sealing element is arranged at the matching position of the first cylinder body and the second cylinder body.
7. The electric spindle reverse tool unloading cylinder according to claim 1, characterized in that: and a fifth sealing element is arranged at the matching position of the first piston and the second piston.
8. The electric spindle reverse tool unloading cylinder as claimed in claim 1, wherein: the limiting nut is fixedly installed on the shaft core assembly through thread matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363526.XA CN107116387B (en) | 2017-05-22 | 2017-05-22 | Electric spindle reverse tool unloading cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363526.XA CN107116387B (en) | 2017-05-22 | 2017-05-22 | Electric spindle reverse tool unloading cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107116387A CN107116387A (en) | 2017-09-01 |
| CN107116387B true CN107116387B (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710363526.XA Active CN107116387B (en) | 2017-05-22 | 2017-05-22 | Electric spindle reverse tool unloading cylinder |
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| CN (1) | CN107116387B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773546A (en) * | 2017-11-10 | 2019-05-21 | 深圳市爱贝科精密机械有限公司 | A kind of ball electric spindle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125409A (en) * | 2006-08-14 | 2008-02-20 | 欧境企业股份有限公司 | Blowing type direct press type knife striking cylinder |
| CN204262862U (en) * | 2014-12-03 | 2015-04-15 | 江苏润德精密机械有限公司 | Discharging type floats and forges a knife |
| CN204487237U (en) * | 2014-12-10 | 2015-07-22 | 广州市昊志机电股份有限公司 | A kind of tool-broaching mechanism that floats |
| CN104625104B (en) * | 2014-12-26 | 2017-01-25 | 广州市昊志机电股份有限公司 | Minitype multifunctional high-speed motorized spindle |
| CN204386995U (en) * | 2014-12-26 | 2015-06-10 | 广州市昊志机电股份有限公司 | For the cylinder that main shaft is forged a knife |
| CN207309504U (en) * | 2017-05-22 | 2018-05-04 | 东莞市巨冈机械工业有限公司 | A kind of electro spindle back unloads knife cylinder |
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2017
- 2017-05-22 CN CN201710363526.XA patent/CN107116387B/en active Active
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| Publication number | Publication date |
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| CN107116387A (en) | 2017-09-01 |
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