CN113290263B - Protective power connection device for machine tool rest - Google Patents
Protective power connection device for machine tool rest Download PDFInfo
- Publication number
- CN113290263B CN113290263B CN202110853524.5A CN202110853524A CN113290263B CN 113290263 B CN113290263 B CN 113290263B CN 202110853524 A CN202110853524 A CN 202110853524A CN 113290263 B CN113290263 B CN 113290263B
- Authority
- CN
- China
- Prior art keywords
- stator
- electric
- power connection
- electrode
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
- B23B29/32—Turrets adjustable by power drive, i.e. turret heads
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
Abstract
The invention discloses a protective power connection device for a machine tool rest, which comprises a power connection rotating device, a power connection stator device and a gas film control device. The power connection rotating device comprises a power connection rotating electrode arranged at the end part; the power connection stator device comprises a power connection stator electrode in contact fit with the power connection rotating electrode and a power connection control device connected or disconnected with the power connection stator electrode; the gas film control device is arranged on the power connection stator device and is positioned at a matching surface between the power connection stator device and the power connection rotating device, when the power connection stator device and the power connection rotating device are in a press fit state, the gas film control device is started, and a gas film protection channel communicated with the gas film control device is formed between the power connection rotating device and the power connection stator device; and when the power connection stator device and the power connection rotating device are in a non-matching state, the air film control device is closed. The device has the characteristics of reasonable design, effective water resistance, chip resistance, high use safety and the like.
Description
Technical Field
The invention relates to the technical field of machine tool knife rests, in particular to a protective power connection device for a machine tool knife rest.
Background
In large lathes, machine tools or automatic numerical control machining equipment, in order to improve machining efficiency and realize synchronous machining and batch production of multiple workpieces, generally, such equipment is provided with a tool rest capable of mounting multiple tools, the tools are mounted on a cutter disc provided with multiple tool mounting positions, the cutter disc is rotatably mounted on the tool rest, and a rotary driving assembly for controlling the cutter disc to be rotated to realize switching of the tools is further arranged between the cutter disc and the tool rest.
Before processing, the cutters are pre-installed on the cutter installation positions of the cutter head according to the processing sequence, and the cutters are debugged; when the machine tool is used for machining, a workpiece is clamped at one end of the machine tool, the workpiece rotates, one cutter is positioned at a machining cutter position by the aid of the transposition of the cutter rest, then the machine tool controls the cutter rest to drive the cutter to feed, so that the cutter performs cutting machining on the workpiece, after the workpiece is machined once, the cutter rest returns and is transposed, the other cutter is positioned at the machining cutter position, then the cutter is driven to feed to achieve cutting machining, and the machining of complex profiles can be completed in one clamping of the workpiece by means of the sequential cyclic transposition machining.
The cutter head in the prior art is mainly used for installing a machining cutter, the machining cutter is a common cutter which does not need to be connected with electricity, however, with the continuous development of the technical field of ultrasonic machining, the ultrasonic cutter is continuously applied to the machine tool with the cutter head and the cutter frame and is arranged on the cutter head which can be displaced, when the ultrasonic cutter rotates to a machining cutter position, the surface of a workpiece can be processed by ultrasonic vibration, because the ultrasonic cutter needs to be connected with electricity during working, and the cutter head needs to be continuously displaced, the ultrasonic cutter is difficult to be connected with electricity, meanwhile, because the rotary cutter head in the prior art does not have the electricity connecting function, the structure which needs electricity connection, such as the ultrasonic cutter, a wired tool setting gauge with a sensor, an online detection vibration lathe tool, a small electric main shaft and the like, can not be installed, and the use range of the cutter frame with the rotary cutter head is limited, the functions cannot be diversified, so that a tool holder structure with a power connection function needs to be designed urgently. In addition, since the machining of the machine tool often requires the addition of cutting fluid and the generation of chips, the cutting fluid may splash during the machining process and may cause short circuit to the power connection portion, and the chips may wear the power connection structure, so the tool holder structure having the power connection function also needs to have the protection effects of water resistance and chip resistance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the protective power connection device for the machine tool knife rest, which has the advantages of simple structure, reasonable design, capability of realizing the power connection function of the rotary cutter head and better use safety.
In order to solve the technical problems, the technical scheme of the invention is as follows: lathe is protection type power connection device for knife rest, includes:
the power connection rotating device is arranged on the cutter head and comprises a power connection rotating electrode arranged at the end part;
the electric stator device is arranged on the tool rest and correspondingly matched with the electric rotating device in a pressing mode, comprises an electric stator electrode in contact fit with the electric rotating electrode, and further comprises an electric control device connected or disconnected with the electric stator electrode, when the electric stator device and the electric rotating device are in a pressing fit state, the electric control device is connected with the electric stator electrode, and when the electric stator device and the electric rotating device are in a non-fit state, the electric control device is disconnected with the electric stator electrode;
the gas film control device is arranged on the power connection stator device and is positioned at a matching surface between the power connection stator device and the power connection rotating device, when the power connection stator device and the power connection rotating device are in a press fit state, the gas film control device is started, and a gas film protection channel communicated with the gas film control device is formed between the power connection rotating device and the power connection stator device; and when the power connection stator device and the power connection rotating device are in a non-matching state, the air film control device is closed.
According to the preferable technical scheme, the electricity connection rotating device comprises a rotating electrode fixing frame fixedly mounted on the cutter head, a rotating electrode mounting seat is fixedly mounted on the rotating electrode fixing frame, the electricity connection rotating electrode is mounted at the end of the rotating electrode mounting seat, and a rotating wiring hole communicated with the electricity connection rotating electrode is further formed in the rotating electrode mounting seat.
According to the preferable technical scheme, the electricity connection stator device comprises a stator electrode fixing frame fixedly mounted on the tool rest, a stator electrode mounting seat is mounted in the stator electrode fixing frame in a sliding mode, a stator electrode reset spring for driving the stator electrode mounting seat to extend towards one end of the electricity connection rotating electrode in a sliding mode is arranged between the stator electrode mounting seat and the stator electrode fixing frame, and the electricity connection stator electrode is mounted at the end portion of the stator electrode mounting seat.
As the preferred technical scheme, connect the electric controlling means including fixing the stator electrode mount pad is kept away from connect the first trigger electrical terminal that connects stator electrode one end, trigger electrical terminal one with connect the electricity between the stator electrode and be connected electrically, slidable mounting has the second trigger electrical terminal on the stator electrode mount, the one end that triggers electrical terminal two extends to outside the stator electrode mount and with trigger electrical terminal one cooperation, the other end that triggers electrical terminal two installs electrical terminal fixed gland, electrical terminal fixed gland is fixed on the stator electrode mount, trigger electrical terminal two with the drive is pressed from both sides between the electrical terminal fixed gland trigger the electrical terminal reset spring that electrical terminal two slided and stretches out.
According to the preferable technical scheme, a stator wiring hole is formed in the stator electrode mounting seat, and a stator connecting wire for electrically connecting the first trigger electric connection terminal and the electric connection stator electrode is arranged in the stator wiring hole.
According to the preferable technical scheme, inclined boosting surfaces which are beneficial to pushing the stator electrode mounting seat to slide along the stator electrode fixing frame to realize press fit are arranged on the matching surfaces of the electric rotating device and the electric stator device.
As preferred technical scheme, the gas film control device is including installing connect the one-way air feed control valve of electric stator device tip, connect be provided with in the electric stator device with the one-way air feed control valve is linked to be used for providing gaseous air feed passageway, works as when one-way air feed control valve is in the open mode, gaseous loop through air feed passageway one-way air feed control valve enters into gas film protection passageway.
As a preferable technical scheme, the one-way air supply control valve comprises a fixed valve seat fixed in the electric connection stator device, a movable valve core is slidably mounted in the fixed valve seat, a valve rod return spring is press-mounted between the fixed valve seat and the movable valve core, and a valve body sealing member used for being matched with the fixed valve seat and used for closing the one-way air supply control valve is further arranged on the movable valve core.
As a preferred technical scheme, the contact surfaces of the electric rotating electrode and the electric stator electrode are both provided with electric arc surfaces, the two electric arc surfaces respectively extend to the ends of the corresponding electric rotating device and the corresponding electric stator device, and when the two electric arc surfaces are in a contact fit state, the gas film protection channel is formed on the matching surface between the electric rotating device and the electric stator device.
When the electric rotating device does not rotate to the machining cutter position, the electric rotating device is not matched with the electric stator device, the electric stator electrode is not communicated with the electric rotating electrode, the electric rotating device is not electrified, the electric control device and the gas film control device are both closed, the electric stator electrode and the electric rotating electrode are not electrified, and the cutter head and the cutter rest are in an uncharged state and cannot be short-circuited by liquid in the environment;
when the electric rotating device rotates to a processing cutter position, the electric rotating device is in press fit with the electric stator device, the electric control device and the gas film control device are both opened, once the electric stator electrode is in contact fit with the electric rotating electrode, the electric stator electrode is connected with the electric rotating electrode, a gas film protection channel is formed between the electric rotating device and the electric stator device, the gas film control device is opened by the electric rotating device in a pressing mode, gas sprayed out of the gas film control device enters the gas film protection channel through the gas film control device and overflows outwards from the gas film protection channel, a gas film is formed on the end face, and therefore impurities such as cutting fluid, cutting scraps and the like cannot enter the space between the electric stator electrode and the electric rotating electrode, the cutting fluid can not contact the electrode and can not cause short circuit to the electrode, so that the whole device has waterproofness, and meanwhile, the cutting impurities can not cause abrasion to the surface of the electrode, and the use safety is higher;
the invention has the beneficial effects that:
(1) the gas film is generated by firstly matching the stator electrode mounting seat with the rotary electrode mounting seat to open the one-way gas supply control valve, and then matching the circular arc surface between the electric connection stator electrode and the electric connection rotary electrode to form a gas film protection channel, so that gas is discharged from the gas film protection channel through the one-way gas supply control valve to form a gas film for water prevention and impurity prevention;
(2) according to the invention, two layers of pressing are adopted, namely the pressing between the first trigger electric connection terminal and the second trigger electric connection terminal and the pressing between the electric connection stator electrode and the electric connection rotating electrode, and when the two pressing are completed simultaneously, the complete electric connection effect can be realized; when one of the two structures is not pressed, the electric stator electrode and the electric rotating electrode which are exposed outside are not electrified; the trigger electric connection terminal I and the trigger electric connection terminal II are arranged inside the electric connection stator device in a pressing mode, and the waterproof effect is good;
(3) the invention not only can realize the power connection function of the cutter head and is used for providing a power supply for a structure arranged on the cutter head, but also has the positioning function of realizing that the cutter accurately reaches the cutter position for processing, has wider application range and better market popularization value.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic view of an installation of a power receiving rotary device and a power receiving stator device in a non-matching state according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the electrical rotating apparatus and the electrical stator apparatus in a matching state according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a power-on rotating device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a stator connecting device according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is an enlarged schematic view at A in FIG. 5;
FIG. 7 is a cross-sectional view at another angle to FIG. 4;
FIG. 8 is an enlarged schematic view at B of FIG. 7;
FIG. 9 is a schematic structural view of an electrical rotating apparatus and an electrical stator apparatus in a matching state according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of FIG. 9;
FIG. 11 is an enlarged schematic view at C of FIG. 10;
FIG. 12 is a cross-sectional view at another angle to FIG. 9;
FIG. 13 is an enlarged schematic view at D of FIG. 12;
in the figure:
100-connecting a rotating device; 101-electrically connected rotating electrode; 102-rotating an electrode holder; 103-rotating electrode mount; 104-rotary wiring hole;
200-connecting the stator device; 201-connecting the stator electrodes electrically; 202-stator electrode holder; 203-stator electrode mounting seats; 204-stator electrode return spring; 205-triggering an electrical connection terminal I; 206-triggering the second electric terminal; 207-fixed gland of electric terminal; 208-electrical connection terminal return spring; 209-a gland wire passing hole; 210-stator wiring holes;
300-a gas film control device; 301-gas supply channel; 302-a fixed valve seat; 303-moving the spool; 304-a valve stem return spring; 305-a valve body seal;
400-gas film protection channel; 500-cutter head; 600-a tool holder; 700-inclined boost surface; 800-connecting the electric arc surface.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
The first embodiment is as follows:
as shown in fig. 1 to 13, the protective power connection device for the tool post of the machine tool comprises a power connection rotating device 100, a power connection stator device 200 and a gas film control device 300.
The electric rotating device 100 is installed on a cutter head 500, a plurality of cutter installation positions for installing cutters are arranged on the cutter head 500, when an ultrasonic cutter is arranged on a certain cutter mounting position, in order to ensure that the ultrasonic cutter can realize the power connection function when rotating to the processing cutter position, therefore, the power-on rotating device 100 is correspondingly installed at the corresponding tool installation position of the ultrasonic tool, certainly, the power connection rotating device 100 is not limited to a certain tool mounting position, and the number is not limited to one, and in actual use, the power connection rotating device 100 may be selected according to a specific structure and a mounting manner, as long as it is ensured that the power connection rotating device 100 is mounted on the tool 500 and correspondingly press-fitted with the power connection stator device 200, can be used for providing power for the ultrasonic cutter or other devices needing to be connected with electricity, which are arranged on the cutter head 500. The ultrasonic tool is not shown in the present embodiment, and only an electric rotating device 100 is shown in fig. 1 for describing the working principle. The power connection rotating device 100 comprises a power connection rotating electrode 101 installed at an end portion, and the power connection rotating electrode 101 serves as a component of the power connection rotating device 100 for achieving a power connection function.
The power connection stator device 200 is installed at a processing tool position of the tool holder 600 and is correspondingly press-fitted with the power connection rotating device 100, in this embodiment, the power connection stator device 200 is installed at the processing tool position of the tool holder 600, and is not limited to the processing tool position, and in actual use, the installation position can be selected according to a specific structure and an installation mode, so long as it is ensured that the power connection stator device 200 can be correspondingly press-fitted with the power connection rotating device 100. The electric stator device 200 comprises an electric stator electrode 201 in contact fit with the electric rotating electrode 101, and the electric stator electrode 201 is used as a component of the electric stator device 200 for realizing an electric function. The cutter head 500, the tool holder 600 and the rotary driving component connected therebetween are all in the prior art, and are well known to those skilled in the art, and the specific structure and operation principle thereof are not described herein again.
The electric stator device 200 further comprises an electric control device connected or disconnected with the electric stator electrode 201, when the electric stator device 200 and the electric rotating device 100 are in a press fit state, the electric control device is connected with the electric stator electrode 201, and when the electric stator device 200 and the electric rotating device 100 are in a non-fit state, the electric control device is disconnected with the electric stator electrode 201.
The gas film control device 300 is installed on the electrical connection stator device 200 and located at a matching surface between the electrical connection stator device 200 and the electrical connection rotary device 100, when the electrical connection stator device 200 and the electrical connection rotary device 100 are in a press fit state, the gas film control device 300 is turned on, a gas film protection channel 400 communicated with the gas film control device 300 is formed between the electrical connection rotary device 100 and the electrical connection stator device 200, and the gas film protection channel 400 is a gap at the matching surface between the electrical connection rotary device 100 and the electrical connection stator device 200 and used for gas discharge; when the electrical stator device 200 is not engaged with the electrical rotating device 100, the air film control device 300 is turned off.
When the electric rotating device 100 does not rotate to a machining tool position, that is, referring to the state in fig. 1, at this time, the electric rotating device 100 is not matched with the electric stator device 200, the electric stator electrode 201 is not connected with the electric rotating electrode 101, so that the electric rotating device 100 is not electrified, meanwhile, the electric control device and the gas film control device 300 are both closed, and the electric stator electrode 201 and the electric rotating electrode 101 are not electrified, so that the whole of the cutter disc 500 and the cutter holder 600 are in an uncharged state and cannot be short-circuited by liquid in the environment;
when the electrical rotating device 100 rotates to a machining tool position, that is, referring to the state in fig. 2, at this time, the electrical rotating device 100 is in press fit with the electrical stator device 200, the electrical control device and the gas film control device 300 are both opened, at this time, once the electrical stator electrode 201 is in contact fit with the electrical rotating electrode 101, electrical connection is performed between the electrical stator electrode 201 and the electrical rotating electrode 101, a gas film protection channel 400 is formed between the electrical rotating device 100 and the electrical stator device 200, and the gas film control device 300 is pressed and opened by the electrical rotating device 100, gas sprayed from the gas film control device 300 enters the gas film protection channel 400 through the gas film control device 300 and overflows from the gas film protection channel 400 to form a gas film on an end face, impurities such as cutting fluid and cutting chips cannot enter between the electricity connection stator electrode 201 and the electricity connection rotating electrode 101, the cutting fluid cannot contact with the electrodes, short circuit cannot be caused to the electrodes, and therefore the whole device is waterproof, and meanwhile the cutting impurities cannot abrade the surfaces of the electrodes.
In this embodiment, once the power connection stator electrode 201 contacts and matches with the power connection rotating electrode 101, a gas film protection channel 400 is naturally formed between the power connection rotating device 100 and the power connection stator device 200, so as to ensure a protection effect in a power connection state; when the electric stator electrode 201 is not in contact fit with the electric rotating electrode 101, the gas film protection channel 400 is not present.
In this embodiment, the electrical connection control device is used to further ensure the electrical connection safety of the tool holder 600, and the electrical connection control device is not provided in the prior art, so that when the electrical connection rotary electrode 101 is completely contacted and matched with the electrical connection stator electrode 201, the charged state of the electrode is realized; in the invention, the electrification control device is arranged, namely, after the electrification rotating electrode 101 is completely contacted and matched with the electrification stator electrode 201, the electrification state can not be completely realized, but the electrification control device is started to realize the electrification state of the electrode, namely, the electrification control device realizes the complete electrification through double-layer control, and when one layer of control does not meet the requirement, the electrification can not be realized, so that the use safety is better.
Referring to fig. 3, the electrical rotating apparatus 100 includes a rotating electrode holder 102 fixedly mounted at a cutter mounting position of the cutter head 500, a rotating electrode mount 103 is fixedly mounted on the rotating electrode holder 102, the electrical rotating electrode 101 is mounted at an end of the rotating electrode mount 103, the rotating electrode mount 103 is further provided with a rotating wiring hole 104 communicated with the electrical rotating electrode 101, the structure of the rotating wiring hole 104 is as shown in fig. 10, and at least one electrical rotating electrode 101 is provided. Referring to fig. 3, in the present embodiment, two electrical rotating electrodes 101 are provided, each electrical rotating electrode 101 is correspondingly provided with a rotating wiring hole 104 for passing through an electrical wire to ensure that electricity is transmitted from the electrical rotating electrode 101, where the electrical rotating electrode 101 is equivalent to a power supply end for electrical connection of an ultrasonic tool or other devices requiring electrical connection, and the ultrasonic tool is electrically connected to the electrical rotating electrode 101 through the electrical wire to implement electrical connection of the ultrasonic tool.
Referring to fig. 4 to 8, the power connection stator device 200 includes a stator electrode fixing frame 202 fixedly installed at a processing tool position of the tool holder 600, a stator electrode mounting seat 203 is installed in the stator electrode fixing frame 202 in a sliding manner, the stator electrode mounting seat 203 is horizontally arranged, the sliding direction of the stator electrode mounting seat is parallel to the rotating shaft direction of the tool pan 500, a stator electrode return spring 204 for driving the stator electrode mounting seat 203 to extend towards one end of the power connection rotating electrode 101 in a sliding manner is arranged between the stator electrode mounting seat 203 and the stator electrode fixing frame 202, and the power connection stator electrode 201 is installed at the end of the stator electrode mounting seat 203. The electrical rotating electrode 101 is provided with at least one electrical stator electrode 201, in this embodiment, two electrical stator electrodes 201 are provided, and referring to fig. 4, each electrical stator electrode 201 corresponds to an electrical rotating electrode 101. The stator electrode mounting seat 203 horizontally slides between the stator electrode fixing frames 202 through a limiting groove and a screw, so that the stator electrode mounting seat 203 cannot rotate in the working process.
The power connection control device comprises a first trigger power connection terminal 205 fixed at one end of the stator electrode mounting seat 203 far away from the power connection stator electrode 201, the first trigger electrical terminal 205 is electrically connected with the electrical stator electrode 201, the second trigger electrical terminal 206 is slidably mounted on the stator electrode fixing frame 202, the sliding direction of the second trigger electrical terminal 206 is the same as that of the stator electrode mounting seat 203, one end of the second trigger electrical terminal 206 extends out of the stator electrode fixing frame 202 and is matched with the first trigger electrical terminal 205, the other end of the second trigger electric terminal 206 is provided with an electric terminal fixing gland 207, the electric terminal fixing gland 207 is fixed on the stator electrode fixing frame 202, and an electric terminal reset spring 208 for driving the second trigger electric terminal 206 to slide and extend is arranged between the second trigger electric terminal 206 and the electric terminal fixing gland 207 in a pressing mode. And a gland wire passing hole 209 is formed in the electric terminal fixing gland 207 and used for electrically connecting the second trigger electric terminal 206 with the outside. When the tool rest is used, the second trigger electrical connection terminal 206 can be always connected with a power supply, namely, the second trigger electrical connection terminal 206 is equal to a power supply interface of the tool rest. The first trigger electrical terminal 205 and the second trigger electrical terminal 206 are equal to two conductive ends, when the first trigger electrical terminal 205 contacts the second trigger electrical terminal 206, the electrical connection control device is started, and when the first trigger electrical terminal 205 and the second trigger electrical terminal are not contacted, the electrical connection control device is not started. The first trigger electrical connection terminal 205 and the second trigger electrical connection terminal 206 are arranged in pairs, and the number of the first trigger electrical connection terminals corresponds to that of the electrical connection stator electrodes 201 one by one.
Be provided with stator wiring hole 210 in the stator electrode mount pad 203, the quantity of stator wiring hole 210 with connect electric stator electrode 201 one-to-one, be equipped with in the stator wiring hole 210 will trigger connect electric terminal 205 with connect the stator connecting wire of electric connection between the electric stator electrode 201.
When the electrical rotating device 100 rotates to the electrical stator device 200, the electrical stator device 200 needs to be pushed to slide inward for a certain distance, and when the electrical rotating device 100 does not rotate to the electrical stator device 200, the electrical stator device 200 naturally extends outward for a certain distance, however, since the electrical rotating device 100 rotates along with the cutter head 500 and the electrical stator device 200 is fixed on the cutter holder 600, in order to realize the press fit between the electrical rotating device and the electrical stator device 200, the electrical stator device 200 slides inward, inclined push-aid surfaces 700 which are beneficial to pushing the stator electrode mounting seat 203 to slide along the stator electrode fixing frame 202 to realize the press fit are respectively arranged at the matching surfaces of the electrical rotating device 100 and the electrical stator device 200. The inclined boosting surface 700 is configured as shown in fig. 12, the inclined boosting surface 700 is disposed on left and right mating end surfaces of the power connection stator device 200 and the power connection rotating device 100, and when the power connection rotating device 100 is about to contact the power connection stator device 200, the power connection stator device 200 is forced to slide inward for a distance under the mating of the inclined boosting surface 700, and then the power connection rotating device 100 and the power connection stator device 200 can be press-fitted.
Gas film controlling means 300 is including installing connect the one-way air feed control valve of stator device 200 tip, connect be provided with in the stator device 200 with one-way air feed control valve links to be used for providing gaseous air feed passage 301, air feed passage 301 runs through stator electrode mount 202, stator electrode mount pad 203, during the use, the air supply passes through stator electrode mount 202 tail end intercommunication to air feed passage 301, make keep having high-pressure gas in the air feed passage 301, work as when one-way air feed control valve is in the on-state, gaseous loop through air feed passage 301 one-way air feed control valve enters into gas film protection channel 400. In the present embodiment, the one-way air supply control valve functions substantially the same as the one-way valve for one-way control of the discharge of gas.
The one-way air supply control valve comprises a fixed valve seat 302 fixed in the power connection stator device 200, a movable valve core 303 is installed in the fixed valve seat 302 in a sliding mode, the sliding direction of the movable valve core 303 is the same as that of the stator electrode installation seat 203, a valve rod return spring 304 is installed between the fixed valve seat 302 and the movable valve core 303 in a pressing mode, and a valve body sealing piece 305 used for being matched with the fixed valve seat 302 and used for closing the one-way air supply control valve is further arranged on the movable valve core 303. When the movable valve element 303 is not pressed, a portion of the movable valve element 303 protrudes out of the fixed valve seat 302, that is, out of the end of the stator electrode mounting seat 203, and when the stator electrode mounting seat 203 is engaged with the rotating electrode mounting seat 103, it is pressed inward by the rotating electrode mounting seat 103.
The contact surfaces of the electric rotating electrode 101 and the electric stator electrode 201 are both provided with electric arc surfaces 800, the two electric arc surfaces 800 extend to the outside of the end portions of the electric rotating device 100 and the electric stator device 200, respectively, that is, the electric arc surface 800 on the electric rotating electrode 101 is higher than the end portion of the rotating electrode mounting seat 103, and the electric arc surface 800 on the electric stator electrode 201 is higher than the end portion of the stator electrode mounting seat 203, when the two electric arc surfaces 800 are in a contact fit state, the gas film protection channel 400 is formed on the matching surface between the electric rotating device 100 and the electric stator device 200, that is, the gas film protection channel 400 is formed between the matching surfaces of the rotating electrode mounting seat 103 and the stator electrode mounting seat 203. Meanwhile, the electrode structure is provided with an electric arc surface 800 which is an arc surface, so that certain errors can be allowed during installation.
The working principle of the embodiment is as follows:
in the indexing process of the cutter head 500, when the electrical rotating device 100 does not rotate to a machining cutter position, that is, referring to a state in fig. 1, at this time, the electrical rotating device 100 is not matched with the electrical stator device 200, the electrical rotating device 100 is not connected with electricity, meanwhile, the electrical stator electrode 201 is not contacted with the electrical rotating electrode 101, and the whole cutter head and the cutter head are not electrified;
referring to fig. 5 to 8, at this time, the stator electrode mounting seat 203 is in an outward extending state under the action of the stator electrode return spring 204, that is, the first trigger electrical terminal 205 and the second trigger electrical terminal 206 are pushed to be separated from each other, and the second trigger electrical terminal 206 is also in an outward extending state under the action of the electrical terminal return spring 208, at this time, electricity at the second trigger electrical terminal 206 cannot be transmitted to the first trigger electrical terminal 205, and the electrical stator electrode 201 is not electrified; meanwhile, the movable valve core 303 is in an outward extending state under the action of the valve rod return spring 304, the valve rod return spring 304 presses the valve body sealing member 305 to be pressed on the fixed valve seat 302, the one-way air supply control valve is closed, and no air can pass through the one-way air supply control valve;
when the electric rotating device 100 approaches to a machining tool position, firstly, the rotating electrode mounting seat 103 pushes the stator electrode mounting seat 203, so that the stator electrode mounting seat 203 overcomes the stator electrode return spring 204 to slide inwards, the stator electrode mounting seat 203 drives the first trigger electric terminal 205 to slide and contact towards the second trigger electric terminal 206 in the sliding process, meanwhile, the elastic force of the electric terminal return spring 208 is overcome to enable the second trigger electric terminal 206 to slide inwards, the first trigger electric terminal 205 is electrified after being contacted with the second trigger electric terminal 206, and electricity is transmitted to the electric stator electrode 201 through an electric wire, and at the moment, the electric stator electrode 201 is electrified; when the power connection rotating electrode 101 rotates to the power connection stator electrode 201, and the two electrodes are in contact fit, the current between the trigger power connection terminal II 206, the trigger power connection terminal I205, the power connection stator electrode 201 and the power connection rotating electrode 101 is communicated, so that the power connection rotating device 100 is connected with power, and at the moment, the cutter head 500 realizes a power connection function and can provide power for an ultrasonic cutter or other structures installed on the cutter head; the state after the complete contact and matching between the electric rotating electrode 101 and the electric stator electrode 201 is shown in fig. 12 and 13;
meanwhile, in the process that the rotating electrode mounting seat 103 rotates to the stator electrode mounting seat 203, the rotating electrode mounting seat 103 pushes the movable valve core 303 to slide inward against the valve rod return spring 304, and in the process that the movable valve core 303 slides, the valve body sealing element 305 is driven, so that the valve body sealing element 305 is no longer matched with the fixed valve seat 302, that is, the unidirectional gas supply control valve is opened, and the opened state is shown in fig. 10 and 11; because the electric rotating electrode 101 and the electric stator electrode 201 are both protruded arc surface structures, after the contact between the electric rotating electrode 101 and the electric stator electrode 201, a gap is generated between the rotating electrode mount 103 and the stator electrode mount 203, namely, the gas film protection channel 400, the gas in the gas supply channel 301 enters the gas film protection channel 400 through the one-way gas supply control valve and overflows from the gas film protection channel 400, forming a gas film on the end face, wherein the gas flows as shown in fig. 10 and fig. 11, the overflow gas prevents impurities such as cutting fluid, cutting chips and the like from entering between the electric connection stator electrode 201 and the electric connection rotating electrode 101, the cutting fluid does not contact the electrode, short circuit is not caused to the electrode, thereby the whole device has waterproofness, and simultaneously the chip impurities can not cause abrasion to the surface of the electrode.
In the invention, the generation of the gas film is realized by matching the stator electrode mounting seat 203 with the rotating electrode mounting seat 103 to open the one-way gas supply control valve, and then a gas film protection channel 400 is formed by matching the arc surface between the electric connection stator electrode 201 and the electric connection rotating electrode 101, so that gas is discharged from the gas film protection channel 400 through the one-way gas supply control valve to form a gas film for water prevention and impurity prevention.
In the invention, two layers of pressing are adopted, namely the pressing between the first trigger electric connection terminal 205 and the second trigger electric connection terminal 206 and the pressing between the electric connection stator electrode 201 and the electric connection rotating electrode 101, and when the two pressing are completed simultaneously, the complete electric connection effect can be realized; when one of the electrodes is not pressed, the structures exposed outside of the electric connection stator electrode 201 and the electric connection rotating electrode 101 are not electrified; and the first trigger electrical terminal 205 and the second trigger electrical terminal 206 are arranged inside the electrical stator device 200 in a pressing mode, so that a good waterproof effect is achieved.
Example two:
the second embodiment is different from the first embodiment only in the purpose of use, and the specific structure is the same. In this embodiment, the power connection device can not only realize the power connection function, but also further realize the positioning function. In the indexing process of each cutter, in order to ensure that the cutter can accurately process a workpiece, the cutter needs to be ensured to accurately reach a processing cutter position when each cutter is indexed, and the cutter indexing device has the function of realizing that the cutter accurately reaches the processing cutter position, and specifically comprises the following steps:
when in use, the power connection rotating device 100 is correspondingly installed at each tool installation position of the cutter head 500, and the power connection stator device 200 is correspondingly installed at the processing tool position of the tool rest 600. When the cutter head 500 is rotated, after the power connection rotating device 100 of one cutter mounting position is in press fit with the power connection stator device 200, and the power connection rotating electrode 101 is in corresponding contact fit with the power connection stator electrode 201, it represents that the cutter at the cutter mounting position reaches the machining cutter position at the moment, the power connection stator electrode 201 is equivalent to a signal sensor, a feedback signal reaching the machining cutter position can be generated, the feedback signal is transmitted to a control system for controlling the rotation of the cutter head, and the cutter head 500 is controlled to stop rotating; if the power connection rotating device 100 is not matched with the power connection stator device 200, and the power connection rotating electrode 101 is in non-contact matching with the power connection stator electrode 201, the power connection rotating electrode 101 is not electrified, a feedback signal reaching a machining tool position cannot be generated, and when the control system does not receive the feedback signal, the tool does not accurately reach the machining tool position, and the cutter disc 500 is controlled to continue to rotate. In this embodiment, the charged state of the power-on rotary electrode 101 is used to determine whether the tool accurately reaches the machining tool position, so that the accuracy of tool disc indexing can be effectively improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. Lathe is protection type power connection device for knife rest, its characterized in that includes:
the power connection rotating device is arranged on the cutter head and comprises a power connection rotating electrode arranged at the end part;
the electric stator device is arranged on the tool rest and correspondingly matched with the electric rotating device in a pressing mode, comprises an electric stator electrode in contact fit with the electric rotating electrode, and further comprises an electric control device connected or disconnected with the electric stator electrode, when the electric stator device and the electric rotating device are in a pressing fit state, the electric control device is connected with the electric stator electrode, and when the electric stator device and the electric rotating device are in a non-fit state, the electric control device is disconnected with the electric stator electrode;
the gas film control device is arranged on the power connection stator device and is positioned at a matching surface between the power connection stator device and the power connection rotating device, when the power connection stator device and the power connection rotating device are in a press fit state, the gas film control device is started, and a gas film protection channel communicated with the gas film control device is formed between the power connection rotating device and the power connection stator device; and when the power connection stator device and the power connection rotating device are in a non-matching state, the air film control device is closed.
2. The protective power connection device for the tool rest of the machine tool according to claim 1, wherein the power connection rotating device comprises a rotating electrode fixing frame fixedly mounted on the tool pan, a rotating electrode mounting seat is fixedly mounted on the rotating electrode fixing frame, the power connection rotating electrode is mounted at the end of the rotating electrode mounting seat, and a rotating wiring hole communicated with the power connection rotating electrode is further formed in the rotating electrode mounting seat.
3. The protective electric connection device for the machine tool rest according to claim 1, wherein the electric connection stator device comprises a stator electrode fixing frame fixedly mounted on the machine tool rest, a stator electrode mounting seat is slidably mounted in the stator electrode fixing frame, a stator electrode return spring for driving the stator electrode mounting seat to slidably extend towards one end of the electric connection rotating electrode is arranged between the stator electrode mounting seat and the stator electrode fixing frame, and the electric connection stator electrode is mounted at the end of the stator electrode mounting seat.
4. A protective electric connection device for a machine tool rest according to claim 3, wherein the electric connection control device comprises a first trigger electric connection terminal fixed at one end of the stator electrode mounting seat far away from the electric connection stator electrode, the first trigger electric terminal is electrically connected with the electric connection stator electrode, the stator electrode fixing frame is slidably provided with a second trigger electric terminal, one end of the second trigger electric connection terminal extends out of the stator electrode fixing frame and is matched with the first trigger electric connection terminal, the other end of the triggering electric terminal II is provided with an electric terminal fixing gland which is fixed on the stator electrode fixing frame, and an electric terminal reset spring for driving the triggering electric terminal II to slide and extend is arranged between the triggering electric terminal II and the electric terminal fixing gland in a pressing mode.
5. A protective electric connection device for a machine tool rest according to claim 4, wherein a stator wiring hole is formed in the stator electrode mounting seat, and a stator connection wire for electrically connecting the first trigger electric connection terminal and the electric connection stator electrode is arranged in the stator wiring hole.
6. A protective electric connecting device for a machine tool rest according to claim 3, wherein inclined boosting surfaces which are beneficial to pushing the stator electrode mounting seat to slide along the stator electrode fixing frame to realize press fit are arranged at the matching surfaces of the electric rotating device and the electric stator device.
7. The protective electrical connection device for the tool rest of the machine tool according to claim 1, wherein the gas film control device comprises a one-way gas supply control valve installed at an end of the electrical connection stator device, a gas supply channel connected with the one-way gas supply control valve and used for supplying gas is arranged in the electrical connection stator device, and when the one-way gas supply control valve is in an open state, the gas sequentially passes through the gas supply channel and the one-way gas supply control valve and enters the gas film protective channel.
8. The protected power connection device for the tool rest of the machine tool according to claim 7, wherein the one-way air control valve comprises a fixed valve seat fixed in the power connection stator device, a movable valve core is slidably mounted in the fixed valve seat, a valve rod return spring is press-fitted between the fixed valve seat and the movable valve core, and a valve body sealing member for cooperating with the fixed valve seat to close the one-way air control valve is further disposed on the movable valve core.
9. The protective electric connection device for the tool rest of the machine tool according to claim 1, wherein the contact surfaces of the electric connection rotating electrode and the electric connection stator electrode are both provided with electric connection arc surfaces, the two electric connection arc surfaces respectively extend out of the end portions of the electric connection rotating device and the electric connection stator device, and when the two electric connection arc surfaces are in a contact fit state, the gas film protection channel is formed at the fit surface between the electric connection rotating device and the electric connection stator device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110853524.5A CN113290263B (en) | 2021-07-28 | 2021-07-28 | Protective power connection device for machine tool rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110853524.5A CN113290263B (en) | 2021-07-28 | 2021-07-28 | Protective power connection device for machine tool rest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113290263A CN113290263A (en) | 2021-08-24 |
| CN113290263B true CN113290263B (en) | 2021-09-24 |
Family
ID=77331146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110853524.5A Active CN113290263B (en) | 2021-07-28 | 2021-07-28 | Protective power connection device for machine tool rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113290263B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234464A (en) * | 2009-03-31 | 2010-10-21 | Kondo Seisakusho:Kk | Abnormality detection method for turret type cutting tool |
| CN102671852A (en) * | 2012-05-28 | 2012-09-19 | 山东华云机电科技有限公司 | Ultrasonic power supply device for hydraulic turret of numerical control machine tool |
| CN103338898A (en) * | 2011-01-21 | 2013-10-02 | 美格工业自动化系统有限公司 | Tool revolver for machining workpieces and a machining system comprising such a tool revolver |
| WO2019135591A1 (en) * | 2018-01-03 | 2019-07-11 | 두산공작기계 주식회사 | Turret tool post of machine tool |
-
2021
- 2021-07-28 CN CN202110853524.5A patent/CN113290263B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234464A (en) * | 2009-03-31 | 2010-10-21 | Kondo Seisakusho:Kk | Abnormality detection method for turret type cutting tool |
| CN103338898A (en) * | 2011-01-21 | 2013-10-02 | 美格工业自动化系统有限公司 | Tool revolver for machining workpieces and a machining system comprising such a tool revolver |
| CN102671852A (en) * | 2012-05-28 | 2012-09-19 | 山东华云机电科技有限公司 | Ultrasonic power supply device for hydraulic turret of numerical control machine tool |
| WO2019135591A1 (en) * | 2018-01-03 | 2019-07-11 | 두산공작기계 주식회사 | Turret tool post of machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113290263A (en) | 2021-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102133666B (en) | Cutter joint assembly and processing system | |
| CN108942565B (en) | Electric tool | |
| GB1216215A (en) | Circuit assembly | |
| CN106166753A (en) | Grasping device and possess the robot device of this grasping device | |
| CN113290263B (en) | Protective power connection device for machine tool rest | |
| CN106450475A (en) | Secondary battery and battery module | |
| EP2382702A2 (en) | Adjusting device for an electric motor | |
| US3264906A (en) | Machine tool spindle assembly | |
| CN204747693U (en) | Spark -erosion grinding emery wheel spindle unit | |
| US3461059A (en) | Power operated electro-chemical fixture | |
| DE602007002891D1 (en) | ||
| KR101649423B1 (en) | Apparatus for electrochemical discharge machining | |
| JP5512946B2 (en) | Cutting equipment | |
| US4766282A (en) | Fusing apparatus and method with electrode changing | |
| US20210362289A1 (en) | Electric work machine | |
| US5262694A (en) | Fluid resistant brush holder assembly | |
| WO2020142895A1 (en) | Electronic device, printed circuit board, and electrical tool | |
| CN113814503A (en) | Elastic center power transmission device for wire-cut electrical discharge machining of aluminum products | |
| EP2212979B1 (en) | Electric hand tool | |
| CN204867691U (en) | Tool electrode subassembly for spark -erosion machining | |
| CN211489654U (en) | Numerical control machine tool rest | |
| CN208954841U (en) | A kind of general-purpose type deep water switch | |
| CN208556886U (en) | CNC milling machine protective device | |
| CN103944028A (en) | Rotary carbon brush holder | |
| CN217799536U (en) | Resistance spot welding machine that can switch over fast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |