CN117066608B - Screw tap machining device and method - Google Patents
Screw tap machining device and method Download PDFInfo
- Publication number
- CN117066608B CN117066608B CN202311332240.7A CN202311332240A CN117066608B CN 117066608 B CN117066608 B CN 117066608B CN 202311332240 A CN202311332240 A CN 202311332240A CN 117066608 B CN117066608 B CN 117066608B
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- barrel
- top contact
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- pressure
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 title description 2
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 238000005299 abrasion Methods 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 6
- 238000003672 processing method Methods 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
- B23G1/04—Machines with one working-spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a processing device and a processing method of a tap, wherein the processing device comprises a lathe, a tool rest and a clamping head are arranged on the lathe, the clamping head is used for clamping a blank, a turning tool is arranged on the tool rest and is used for turning the blank, and the processing device also comprises a detection device, wherein the detection device comprises a telescopic piece, a pressure detection device, a propping device, an air charging device and a mounting frame. The invention provides a processing device and a processing method of a screw tap, which are used for judging the abrasion condition of a turning tool by detecting the pressure change of a tool bit of the turning tool after extending out by the same distance, and the whole detection process is automatically completed, so that the quality problem caused by the fact that the turning tool is abraded due to negligence of manpower is avoided, and the turning quality of the screw tap during turning is ensured.
Description
Technical Field
The invention relates to the technical field of tap processing, in particular to a tap processing device and a tap processing method.
Background
The tap is required to undergo the procedures of turning, planing and milling, heat treatment and grinding in the process from raw materials to finished products, wherein in the turning process, the raw materials are often turned into blanks with required diameters due to the fact that a turning cutter is different from a turning cutter, and the blanks are transferred to the next procedure for tooth processing;
the turning of blanks is carried out in a large batch, the cutter heads of turning tools are worn in the turning process, so that the diameter of the turned blanks is increased, the outer diameter of the taps is increased, the quality of the taps is unqualified, the existing prevention method is to manually carry out spot check on the turned blanks, and the spot check can be carried out manually, so that the cutter wear cannot be found at the first time sometimes, the cutter heads are found after a large number of defective products are produced, and the defective products are required to be turned again at the moment.
Disclosure of Invention
The invention provides a processing device and a processing method of a tap, aiming at the defects in the prior art.
In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides a processingequipment of screw tap, including the lathe, be provided with knife rest and dress chuck on the lathe, the clamping head is used for the centre gripping blank, be provided with the lathe tool on the knife rest, be used for turning the blank, still include detection device, detection device includes the extensible member, pressure detection device, prop up touch the device, air inflation device and mounting bracket, the mounting bracket sets up on the lathe, air inflation device includes the gas storage bucket, the extensible member includes piston bucket and telescopic link, the piston bucket sets up on the mounting bracket, telescopic link piston slides and sets up in the piston bucket, and the gas storage bucket rear end passes through the pipeline and is connected with piston bucket rear end, be provided with the control valve on the pipeline, pressure detection device sets up at the telescopic link front end, set up the diaphragm on the telescopic link, be provided with the limiting plate on the piston bucket, be provided with first pressure touch switch on the limiting plate, the diaphragm can press touch on the limiting plate, press touch switch control pressure release valve starts, the diaphragm front end top touch the one end of being provided with first elastic component, the other end top is on the mounting bracket, prop up the lathe tool setting up at pressure detection device's front end, when touching the telescopic link rear end and being connected with the piston bucket rear end, be provided with the pressure value, can become the pressure value when the pressure detection device is stretched out to the pressure value, can become when the pressure value is detected to the pressure value, the pressure change.
The tool rest has the beneficial effects that the abrasion detection of the turning tool can be carried out once when the tool rest returns to the zero position, the abrasion detection is carried out by extending the pressure detection device by the same distance, the pressure change of the pressure detection device propped against the turning tool is observed, and when the pressure value is reduced, the turning tool shows abrasion.
In the above scheme, preferably, the air charging device comprises an air charging barrel, the air charging barrel is arranged on the lathe, a piston rod is arranged in the air charging barrel in an elastic sliding manner, the front end of the piston rod is located on a path of the tool rest returning to a zero position, the rear end of the air charging barrel is connected with the air storage barrel through a pipeline, and the tool rest can be pressed on the piston rod in the process of returning to the zero position backwards, so that the piston rod is driven to move together.
In the above scheme, preferably, the top contact device comprises a lifting frame and a top contact piece, wherein the lifting frame is provided with a first barrel and a second barrel, a rotating sleeve is arranged in the first barrel in a rotating way, a rotating shaft is arranged in the second barrel in a rotating way, one end of the top contact piece is wound on the rotating sleeve of the first barrel, the other end of the top contact piece extends out from a side opening of the first barrel, passes through the front end of the pressure detection device and enters the second barrel from a side opening of the second barrel, and is arranged on the rotating shaft, and the rotating shaft can drive the top contact piece to move.
In the above scheme, preferably, a fixed shaft is arranged at the central position of the first barrel, a spiral spring is arranged between the fixed shaft and the rotating sleeve, and a locking device is arranged at the lower end of the rotating shaft, so that the rotating shaft can only rotate unidirectionally.
In the above scheme, preferably, the unidirectional rotation of axis of rotation lower extreme is provided with the wheel that rolls, is provided with the friction block on the mounting bracket, thereby the telescopic link is driving the flexible in-process of top touch device front and back, rolls with the friction block contact and takes place to roll, and drives the axis of rotation at the in-process of backward withdrawal.
In the above scheme, preferably, the locking device comprises a ratchet, a locking tooth and an electric control telescopic frame, wherein the electric telescopic frame is arranged on the side surface of the second barrel, the ratchet is arranged on the rotating shaft, the locking tooth is elastically and slidably arranged on the electric telescopic frame, when the electric telescopic frame is in a retracted state, the locking tooth elastically props against the ratchet to enable the ratchet to rotate in one direction, and when the electric telescopic frame is in an extended state, the locking tooth is disconnected with the ratchet to enable the rotating shaft to rotate in the opposite direction.
In the above scheme, preferably, a second press contact switch is arranged on the inner wall of the second barrel, after the top contact piece wound on the rotating shaft reaches a certain number of turns, the top contact piece can be pressed on the second press contact switch, the second press contact switch controls the electric telescopic frame to extend out, and meanwhile, the lifting frame is controlled to extend out upwards for a certain distance.
A processing method of a processing device of a tap is characterized in that:
s1, returning the tool rest to a zero position, and enabling the air storage barrel to supply air to the telescopic piece, so that the telescopic rod extends forwards, and retracts backwards after being propped against the limiting plate.
And S2, the front end of the telescopic rod extending out of the top contact piece is propped against the turning tool, and the rear end of the telescopic rod is pressed against the pressure detection device, so that the pressure detection device obtains a pressure value.
And S3, the rotating shaft rotates in the retracting process of the telescopic rod, so that the top contact piece is driven to move for a certain displacement, and when the next turning tool is in contact, the top contact piece at the contact position is not used in a new state, and the measuring accuracy is ensured.
The beneficial effects of the invention are as follows: the invention provides a processing device and a processing method of a screw tap, which are used for judging the abrasion condition of a turning tool by detecting the pressure change of a tool bit of the turning tool after extending out by the same distance, and the whole detection process is automatically completed, so that the quality problem caused by the fact that the turning tool is abraded due to negligence of manpower is avoided, and the turning quality of the screw tap during turning is ensured.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic diagram of the cooperation of the detection device and the tool rest according to the present invention.
FIG. 3 is a schematic diagram of a detecting device according to the present invention.
FIG. 4 is a schematic view of a portion of a detection apparatus according to the present invention.
FIG. 5 is a cross-sectional view of the detection device of the present invention.
FIG. 6 is a cross-sectional view of an inflatable device of the present invention.
FIG. 7 is a schematic view of a locking device according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: with reference to figures 1 to 7 of the drawings,
the utility model provides a processingequipment of screw tap, including lathe 1, be provided with knife rest 2 on the lathe 1, clamping head 3 and detection device 4, clamping head 3 is used for the centre gripping blank, be provided with lathe tool 21 on the knife rest 2, knife rest 2 can be on lathe 1's guide rail about, thereby cooperate lathe tool 21 to turn the blank, detection device 4 includes extensible member 41, pressure detection device 42, touch device 43, air inflation device 44, mounting bracket 45 and locking device 46, mounting bracket 45 sets up on lathe 1, and be located lathe 1's rear end position, namely on knife rest 2's the zero position, extensible member 41 includes piston barrel 411 and telescopic link 412, piston barrel 411 sets up on mounting bracket 45, telescopic link 412 piston slides and sets up in piston barrel 411, pressure detection device 42 sets up the front end at telescopic link 412, set up diaphragm 413 on telescopic link 412, be provided with limiting plate 414 on mounting bracket 45, be provided with the relief valve on piston barrel 411, diaphragm 413 front end top is provided with one end of first elastic member 415, the other end top is on mounting bracket 45.
When compressed gas is introduced into the rear end of the piston barrel 411, the telescopic rod 412 can be pushed forward, so that the transverse plate 413 is propped against the limiting plate 414, the first elastic piece 415 is compressed, a first pressure contact switch is arranged on the end face of the limiting plate 414, the first pressure contact switch is pressed when the transverse plate 413 is pressed against the limiting plate 414, the pressure release valve is controlled to be opened, the telescopic rod 412 is driven to retract backwards under the action of the first elastic piece 415, the gas in the piston barrel 411 is discharged outwards from the pressure release valve, and the telescopic rod 412 automatically retracts backwards after reaching the forefront end is achieved.
The air charging device 44 includes an air charging barrel 441, a piston rod 442 and an air storage barrel 443, the air charging barrel 441 is disposed on the lathe 1, the piston rod 442 is slidably disposed in the air charging barrel 441, an air inlet valve 444 is disposed on a piston ring of the piston rod 442, a front end of the piston rod 442 is located on a path where the tool rest 2 returns to a zero position, a rear end of the air charging barrel 441 is connected with the air storage barrel 443 through a pipeline, and the air storage barrel 443 is connected with a rear end of the piston barrel 411 through a pipeline.
After each turning, the tool rest 2 returns to the initial zero position, so that an operator or a machine receives the turned blank and installs a new blank to be machined, and in the process of returning the tool rest 2 to the initial zero position, the tool rest 2 is propped against the front end of the piston rod 442, thereby driving the piston rod 442 to slide backwards, pressing the gas in the gas cylinder 441 into the gas storage cylinder 443, and meanwhile, an induction device is arranged on the tool rest zero position of the lathe 1, after the tool rest 2 is reset, the gas storage cylinder 443 is controlled to supply gas to the telescopic piece 41, and when the telescopic rod 412 extends forwards and is pressed against the first pressing switch, the gas supply to the telescopic piece 41 is stopped.
After the replacement of the parts on the clamping head 3 is completed, the tool rest 2 starts to move towards the clamping head 3, the piston rod 442 is restored to the extended state under the action of the second elastic element 445 in the air inflation barrel 441 in the moving process, and in the restoring process, air enters the air inflation barrel 441 from the air inlet valve arranged on the piston ring of the piston rod 442.
The pressure detecting device 42 is disposed at the front end of the telescopic rod 412, the top contact device 43 includes a lifting frame 431, a first barrel 432, a second barrel 433 and a top contact piece 434, an electric telescopic cylinder 4311 is disposed below the lifting frame 431, the electric telescopic cylinder 4311 can be set to a set height according to a program, the electric telescopic cylinder 4311 is disposed at the front end of the telescopic rod 412, the first barrel 432 and the second barrel 433 are respectively disposed at left and right sides of the lifting frame 431, a rotating sleeve 4321 is disposed in the first barrel 432 in a rotating manner, a fixed shaft 4322 is fixedly disposed at the center position of the first barrel 432, a scroll spring 4323 is disposed between the fixed shaft 4322 and the rotating sleeve 4321, a rotating shaft 4331 is disposed in the second barrel 433 in a rotating manner, one end of the top contact piece 434 is wound on the rotating sleeve 4321 of the first barrel 432, the other end extends from the side opening of the first barrel 432, passes through the front end of the pressure detecting device 42 and enters the second barrel 433 from the side opening of the second barrel 433, and is disposed on the rotating shaft 4331.
Wherein the top contact 434 passes through the front end of the pressure detecting device 42, and when the tool rest 2 returns to the zero position, the telescopic rod 412 pushes the top contact device 43 to extend forward, and the extending distance is the same each time, and the front end surface of the top contact 434 contacts the tip of the turning tool 21 during the extending process, and the rear end surface of the top contact 434 presses against the pressure detecting device 42, so that the pressure detecting device 42 obtains a pressure value, after obtaining the pressure value, the telescopic rod 412 is retracted backward, and the pressure value is maintained in a controllable interval under the condition that the turning tool 21 is not worn because the extending distance of the telescopic rod 412 is the same each time.
Meanwhile, the top contact piece 434 is made of soft materials, the tip of the turning tool 21 is propped against the top contact piece 434 to deform to a certain extent, so that the tip of the turning tool 21 is protected from being damaged, however, each time the tip of the turning tool 21 is propped against the top contact piece 434, the surface of the top contact piece is worn away, so that the pressure value detected by the pressure detection device 42 is affected, and therefore, the top contact piece 434 on the measuring point needs to be replaced after each detection.
The locking device 46 comprises a ratchet 461, a locking tooth 462 and an electric control telescopic frame 463, the electric telescopic frame 463 is arranged on the side face of the second barrel 433, the ratchet 461 is arranged on the rotating shaft 4331, the locking tooth 462 is elastically and slidably arranged on the electric telescopic frame 463, a rolling wheel 4332 is arranged at the lower end of the rotating shaft 4331 in a unidirectional rotation mode, a friction block 451 is arranged on the mounting frame 45, the telescopic rod 412 is contacted with the friction block 451 to roll in the process of driving the jacking device 43 to stretch back and forth, the rotating shaft 4331 is driven to rotate in the backward retracting process, a second press contact switch 4333 is arranged on the inner wall of the second barrel 433, and after a certain number of turns of the jacking piece 434 wound on the rotating shaft 4331 are reached, the jacking piece 434 can be pressed and contacted with the second press contact switch 4333.
In the initial state, the electric telescopic frame 463 is in a retracted state, namely, the locking tooth 462 elastically pushes against the thorns on the side face of the ratchet 461, and because one side of the thorns is an inclined plane and the other side is a straight plane, when the locking tooth 462 pushes against the ratchet 461, the rotating shaft 4331 can only rotate anticlockwise, clockwise rotation is locked, the spiral spring 4323 in the initial state also has a certain elastic force, therefore, in the initial state, the top contact 434 at the front end position of the pressure detection device 42 is in a tensioned state, the telescopic rod 412 extends forwards, in the extending process, the rolling wheel 4332 contacts with the friction block 451 to roll, the rolling wheel 4332 does not drive the rotating shaft 4331 to rotate because the rolling wheel 4332 rotates unidirectionally, and meanwhile, after the measurement is finished, the rolling wheel 4332 contacts with the friction block 451 again to roll reversely, the rotating shaft 4323 is driven to rotate a certain angle, so that the top contact on the top contact piece at the previous detection time is driven to move towards the second barrel 433, and the top contact 434 is not used.
After the top contact piece 434 wound on the rotating shaft 4331 reaches a certain number of turns, the top contact piece 434 is pressed on the second pressing contact switch 4333, so that the second pressing contact switch 4333 controls the electric telescopic frame 463 to extend, the locking teeth 462 are driven to move outwards and are disconnected with the ratchet 461, the unidirectional rotation locking of the ratchet 461 is released, the top contact piece 434 is fully rolled back into the first barrel 432 under the action of the scroll spring 4323 in the first barrel 432, the second pressing contact switch 4333 simultaneously controls the electric telescopic cylinder 4311 to extend for a certain distance, the lifting frame 431 is lifted for a certain distance, the position where the top contact piece 434 is pressed before is integrally moved upwards, and the position where the top contact piece is not pressed is positioned on the top contact point of the cutter point, so that the detection device can be used for a longer time.
The working principle or the using method is as follows:
after each turning is completed, the tool rest 2 is restored to the initial zero position, an operator or a machine is enabled to collect the turned blank, a new blank to be machined is installed at the same time, in the process that the tool rest 2 is restored to the initial zero position, the tool rest is propped against the front end of the piston rod 442, so that the piston rod 442 is driven to slide backwards, gas in the gas charging barrel 441 is pressed into the gas storage cylinder 443, meanwhile, an induction device is arranged on the tool rest zero position of the lathe 1, the gas storage cylinder 443 is controlled to supply gas to the telescopic piece 41 after the tool rest 2 is reset, and when the telescopic rod 412 extends forwards and is pressed on the first pressing switch, the gas supply to the telescopic piece 41 is stopped.
The top contact 434 passes through the front end of the pressure detecting device 42, when the tool rest 2 returns to the zero position, the telescopic rod 412 pushes the top contact device 43 to extend forwards, the extending distance is the same each time, the front end face of the top contact 434 is propped against the tip of the turning tool 21 in the extending process, the rear end face of the top contact 434 is pressed against the pressure detecting device 42, so that the pressure detecting device 42 obtains a pressure value, after the pressure value is obtained, the telescopic rod 412 is retracted backwards, the pressure value is maintained in a controllable interval under the condition that the turning tool 21 is not worn due to the fact that the extending distance of the telescopic rod 412 is the same each time, and when the turning tool 21 is worn, the deformation degree of the top contact 434 is reduced, and meanwhile the pressure value of the top contact 434 to the pressure detecting device 42 is also reduced, so that the turning tool 21 is judged to be worn.
Meanwhile, the tool rest 2 can be set through a lathe program, the tool rest 2 does not return to the zero position when the blank is replaced, and after a certain number of blanks are turned, the tool rest 2 returns to the zero position once, so that the tool wear detection is performed once.
The top contact 434 is made of soft material, and the tip of the turning tool 21 is propped against the top contact 434 to deform to a certain extent, so as to protect the tip of the turning tool 21 from being damaged, however, each time the tip of the turning tool 21 is propped against the top contact 434, the surface of the top contact will wear away, so that the pressure value detected by the pressure detecting device 42 is affected, and therefore, the top contact 434 at the measuring point needs to be replaced after each detection.
Therefore, in the initial state, the electric expansion bracket 463 is in the retracted state, that is, the locking tooth 462 elastically pushes against the thorn on the side of the ratchet 461, the rotating shaft 4331 can only rotate anticlockwise, clockwise rotation is locked, the spiral spring 4323 in the initial state also has a certain elasticity, therefore, in the initial state, the top contact piece 434 at the front end position of the pressure detection device 42 is in a tensioned state, the expansion link 412 extends forwards, the rolling wheel 4332 contacts with the friction block 451 to roll in the extending process, the rolling wheel 4332 does not drive the rotating shaft 4331 to rotate because of unidirectional rotation, meanwhile, before the top contact piece 434 pushes against the turning tool 21, the rolling wheel 4332 is out of contact with the friction block 451, after the measurement is finished, the expansion link 412 retracts backwards, the rolling wheel 4332 contacts with the friction block 451 again to roll reversely, the rotating shaft 4331 is driven to rotate a certain angle, and the top contact point on the top contact piece 434 detected before being driven to move towards the second barrel 433, so that the top contact piece 434 at the detection point is in a new state.
After the top contact piece 434 wound on the rotating shaft 4331 reaches a certain number of turns, the top contact piece 434 is pressed on the second pressing contact switch 4333, so that the second pressing contact switch 4333 controls the electric telescopic frame 463 to extend, the locking teeth 462 are driven to move outwards and are disconnected with the ratchet 461, the unidirectional rotation locking of the ratchet 461 is released, the top contact piece 434 is fully rolled back into the first barrel 432 under the action of the scroll spring 4323 in the first barrel 432, the second pressing contact switch 4333 simultaneously controls the electric telescopic cylinder 4311 to extend for a certain distance, the lifting frame 431 is lifted for a certain distance, the position where the top contact piece 434 is pressed before is integrally moved upwards, and the position where the top contact piece is not pressed is positioned on the top contact point of the cutter point, so that the detection device can be used for a longer time.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a processingequipment of screw tap, includes lathe (1), is provided with knife rest (2) and clamping head (3) on lathe (1), and clamping head (3) are used for the centre gripping blank, are provided with lathe tool (21) on knife rest (2) for carry out turning, its characterized in that to the blank: the automatic control device for the lathe is characterized by further comprising a detection device (4), wherein the detection device (4) comprises a telescopic piece (41), a pressure detection device (42), a top contact device (43), an air charging device (44) and a mounting frame (45), the mounting frame (45) is arranged on the lathe (1), the air charging device (44) comprises an air storage barrel (443), the telescopic piece (41) comprises a piston barrel (411) and a telescopic rod (412), the piston barrel (411) is arranged on the mounting frame (45), a telescopic rod (412) is arranged in the piston barrel (411) in a sliding manner, the rear end of the air storage barrel (443) is connected with the rear end of the piston barrel (411) through a pipeline, and a control valve is arranged on the pipeline;
the pressure detection device (42) is arranged at the front end of the telescopic rod (412), the transverse plate (413) is arranged on the telescopic rod (412), the limiting plate (414) is arranged on the mounting frame (45), the pressure release valve is arranged on the piston barrel (411), the first pressure contact switch is arranged on the limiting plate (414), the telescopic rod (412) extends forwards, the transverse plate (413) can be pressed against the limiting plate (414), the pressure release valve is controlled to be started by the first pressure contact switch, the front end of the transverse plate (413) is propped against one end provided with the first elastic piece (415), and the other end is propped against the mounting frame (45);
the top contact device (43) is arranged at the front end of the pressure detection device (42), when the telescopic rod (412) extends forwards, the top contact device (43) can be pressed against the tool tip of the turning tool (21), so that the pressure detection device (42) can detect a pressure value, and when the turning tool (21) is worn, the pressure value can be reduced.
2. The apparatus for manufacturing a tap according to claim 1, wherein: the air charging device (44) comprises an air charging barrel (441), the air charging barrel (441) is arranged on the lathe (1), a piston rod (442) is arranged in the air charging barrel (441) in a sliding manner, the front end of the piston rod (442) is located on a zero position restoring path of the tool rest (2), the rear end of the air charging barrel (441) is connected with the air storage barrel (443) through a pipeline, and the tool rest (2) can be pressed on the piston rod (442) in the zero position restoring process, so that the piston rod (442) is driven to move together.
3. The apparatus for manufacturing a tap according to claim 1, wherein: the top contact device (43) comprises a lifting frame (431) and a top contact piece (434), a first barrel (432) and a second barrel (433) are arranged on the lifting frame (431), a rotating sleeve (4321) is arranged in the first barrel (432) in a rotating mode, a rotating shaft (4331) is arranged in the second barrel (433) in a rotating mode, one end of the top contact piece (434) is wound on the rotating sleeve (4321) of the first barrel (432), the other end of the top contact piece extends out of a side opening of the first barrel (432) and passes through the front end of the pressure detection device (42), enters the second barrel (433) from the side opening of the second barrel (433), the top contact piece (434) is arranged on the rotating shaft (4331) in a rotating mode, and the rotating shaft (4331) can drive the top contact piece (434) to move.
4. A tap manufacturing apparatus according to claim 3, wherein: the center of the first barrel (432) is provided with a fixed shaft (4322), a scroll spring (4323) is arranged between the fixed shaft (4322) and the rotating sleeve (4321), the lower end of the rotating shaft (4331) is provided with a locking device (46), and the locking device (46) can enable the rotating shaft (4331) to rotate only in one direction.
5. A tap manufacturing apparatus according to claim 3, wherein: the one-way rotation of axis of rotation (4331) lower extreme is provided with and rolls round (4332), is provided with friction block (451) on mounting bracket (45), telescopic link (412) are driving the in-process that top touch device (43) stretches out and draws back around, thereby roll round (4332) and friction block (451) contact and take place to roll, and drive axis of rotation (4331) rotation at the in-process that withdraws backward.
6. The apparatus for manufacturing a tap according to claim 4, wherein: the locking device (46) comprises a ratchet wheel (461), locking teeth (462) and an electric control telescopic frame (463), wherein the electric telescopic frame (463) is arranged on the side face of the second barrel (433), the ratchet wheel (461) is arranged on the rotating shaft (4331), the locking teeth (462) are elastically and slidably arranged on the electric telescopic frame (463), when the electric telescopic frame (463) is in a retracted state, the locking teeth (462) are elastically abutted against the ratchet wheel (461), the ratchet wheel (461) can only rotate unidirectionally, and when the electric telescopic frame (463) is in an extended state, the locking teeth (462) are disconnected with the ratchet wheel (461), so that the rotating shaft (4331) can reversely rotate.
7. The apparatus for manufacturing a tap according to claim 6, wherein: the inner wall of the second barrel (433) is provided with a second press contact switch (4333), after a certain number of turns of a top contact piece (434) wound on the rotating shaft (4331) is reached, the top contact piece can be pressed on the second press contact switch (4333), the second press contact switch (4333) controls the electric telescopic frame (463) to extend, and meanwhile, the lifting frame (431) is controlled to extend upwards for a certain distance.
8. A method of processing using a tap processing apparatus according to any one of claims 3-7, characterized in that:
s1, returning the tool rest (2) to a zero position, and enabling the gas storage barrel (443) to supply gas to the telescopic piece (41) so that the telescopic rod (412) extends forwards, and after propping against the limiting plate (414), retracting backwards;
s2, the front end of the telescopic rod (412) extending out of the top contact piece (434) is propped against the turning tool (21), and the rear end is pressed against the pressure detection device (42), so that the pressure detection device (42) obtains a pressure value;
s3, in the retracting process of the telescopic rod (412), the rotating shaft (4331) rotates, so that the top contact piece (434) is driven to move for a certain displacement, and when the next turning tool is in contact, the top contact piece (434) at the contact position is not used in a new state, and the measuring accuracy is ensured;
s4: when the tool rest (2) returns to the zero position, the abrasion detection of the turning tool can be carried out once, the abrasion detection is observed by extending the pressure detection device (42) by the same distance, the pressure detection device is propped against the pressure change of the turning tool (21), and when the pressure value is reduced, the turning tool (21) shows abrasion.
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| CN202311332240.7A CN117066608B (en) | 2023-10-16 | 2023-10-16 | Screw tap machining device and method |
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Citations (6)
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| CN206241777U (en) * | 2016-11-30 | 2017-06-13 | 清远市飞华设备有限公司 | A kind of lathe tool detection means |
| CN206316847U (en) * | 2016-12-20 | 2017-07-11 | 天津新科易创科技有限公司 | A kind of lathe lathe tool wear detector |
| CN109282796A (en) * | 2018-10-26 | 2019-01-29 | 哈尔滨理工大学 | A kind of quick horizontal location measurement accessory of turning steep-pitch thread lathe tool wear surface |
| CN215035951U (en) * | 2021-05-24 | 2021-12-07 | 沈阳林氏工具制造有限公司 | Machine tool turning tool abrasion detection device |
| CN215999744U (en) * | 2021-10-21 | 2022-03-11 | 夏鲁锋 | Precision detection device of numerically controlled lathe |
| CN115255408A (en) * | 2022-06-15 | 2022-11-01 | 海南精翊机电设备有限公司 | Online maintenance rounding machine |
-
2023
- 2023-10-16 CN CN202311332240.7A patent/CN117066608B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206241777U (en) * | 2016-11-30 | 2017-06-13 | 清远市飞华设备有限公司 | A kind of lathe tool detection means |
| CN206316847U (en) * | 2016-12-20 | 2017-07-11 | 天津新科易创科技有限公司 | A kind of lathe lathe tool wear detector |
| CN109282796A (en) * | 2018-10-26 | 2019-01-29 | 哈尔滨理工大学 | A kind of quick horizontal location measurement accessory of turning steep-pitch thread lathe tool wear surface |
| CN215035951U (en) * | 2021-05-24 | 2021-12-07 | 沈阳林氏工具制造有限公司 | Machine tool turning tool abrasion detection device |
| CN215999744U (en) * | 2021-10-21 | 2022-03-11 | 夏鲁锋 | Precision detection device of numerically controlled lathe |
| CN115255408A (en) * | 2022-06-15 | 2022-11-01 | 海南精翊机电设备有限公司 | Online maintenance rounding machine |
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| CN117066608A (en) | 2023-11-17 |
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