CN110340457A - A kind of adaptive tapper mechanism - Google Patents
A kind of adaptive tapper mechanism Download PDFInfo
- Publication number
- CN110340457A CN110340457A CN201810281808.XA CN201810281808A CN110340457A CN 110340457 A CN110340457 A CN 110340457A CN 201810281808 A CN201810281808 A CN 201810281808A CN 110340457 A CN110340457 A CN 110340457A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- tapping
- adaptive
- screw tap
- screw
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 14
- 238000010079 rubber tapping Methods 0.000 claims abstract description 39
- 230000006698 induction Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 230000008450 motivation Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002360 preparation method 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
- B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
- B23G1/18—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
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- 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
- B23Q11/04—Arrangements preventing overload of tools, e.g. restricting load
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of adaptive tapper mechanisms, including driving mechanism, and the main shaft of rotation is driven by the driving mechanism, a cylinder is fixed on the main shaft for applying axial compressive force to the main shaft, while the main shaft bottom is also connected with screw tap for carrying out tapping operation to workpiece.In adaptive tapper mechanism described in the invention, main shaft rotary motive power source is done by asynchronous motor, it is adjustable according to the cutting speed speed of mainshaft by gearbox；Pressure is provided by tapping cylinder, is adjusted according to required feed pressure by pressure reducing valve, if output pressure is realized by reversal valve, and encloses position, final position by draw wire encoder detection screw tap axial direction origin position, screw tap incision 3-4.Overload protection is realized by band overload protection quick change tap holder.Whether overloaded by screw mechanism detection tapping, issues overload signal close to switch, play a protective role.
Description
Technical field
The present invention relates to tapping fields, and in particular to a kind of adaptive tapper mechanism.
Background technique
Tapping refers to that internal screw thread will be processed in the screw tap screw-in bottom outlet to be bored with certain torque.Start in tapping
When, axial compressive force is applied to screw tap and is rotated, after general incision 3-4 circle screw thread, need only rotate, be pressed without that should apply again to screw tap
Power, otherwise the form of thread will be damaged.For inner hole of workpiece, factory completes tapping frequently with common tapping machine manual operations, but
This technique is extremely inconvenient, and at high cost, low efficiency, and especially for the part for needing batch machining, difficulty of processing is higher.In order to
It solves these problems, is able to achieve the self-tapping equipment being automatically brought into operation and progresses into market and be easily accepted by a user extensively.
Self-tapping judgment means have at present: combining the mode of control by tapping cylinder, stay wire sensor, PLC and by watching
Take motor, ball screw, mode of PLC combination control etc..
The former there are the problem of: when screw tap incision 3-4 circle can not judge when cancel axial force, the form of thread can quilt
Damage, influences Tapping Quality, and screw tap serious wear, when blind hole tapping or screw tap wear cutting moment of torque increase or chip removal not in time
No safety device, screw tap well damage can not be attacked or be exited to screw tap.
And problem existing for the latter: the system cost is high, is ideally intended to realize by servo motor, ball screw
Axial feed is consistent with tap lead, but reality still has tiny error, especially requires to compare to accuracy of thread
High occasion, the form of thread can be damaged, and influence Tapping Quality, screw tap serious wear.
Summary of the invention
It is an object of the invention to design a kind of adaptive tapper mechanism, which need only be rotated, and no longer to silk
Cone applies pressure, improves production efficiency, reduces production cost.
To achieve the above object, the invention provides the following technical scheme: a kind of adaptive tapper mechanism, including driving machine
Structure, and the main shaft rotated is driven by the driving mechanism, a cylinder is fixed on the main shaft for applying to the main shaft
Add axial compressive force, while the main shaft bottom is also connected with screw tap for carrying out tapping operation to workpiece, when specific works, passes through
Cylinder drives screw tap to apply axial compressive force to main shaft application axial compressive force and carries out tapping, after incision 3-4 encloses screw thread,
The commutation of cylinder reversal valve, cylinder do not have power output, only main axis.
Further, the driving mechanism includes asynchronous motor and the gearbox that connect with the asynchronous motor.
Further, the main shaft bottom is provided with band overload protection quick change tap holder, passes through the band overload protection
Quick change tap holder clamps screw tap to which screw tap to be fixed on the main shaft.
Further, it is additionally provided with screw rod, nut piston, splined shaft and draw wire encoder on the main shaft, wherein institute
It states and is provided with induction bolt on nut piston.
It further, further include warning device, for issuing alarm signal when there is overload signal.
In adaptive tapper mechanism of the present invention, main shaft rotary motive power source is done by asynchronous motor, passes through gearbox
It is adjustable according to the cutting speed speed of mainshaft；Pressure is provided by tapping cylinder, is adjusted and is pressed by pressure reducing valve according to required feed pressure
Power, whether output pressure is realized by reversal valve, and cuts 3- by draw wire encoder detection screw tap axial direction origin position, screw tap
4 circle positions, final position.Overload protection is realized by band overload protection quick change tap holder.Whether tapping is detected by screw mechanism
Overload issues overload signal close to switch, plays a protective role.
The present invention has the advantages that
Adaptive tapper mechanism of the present invention realizes the functional requirement of self-tapping system, when tapping starts, to silk
Cone applies axial compressive force and rotates, and after screw tap cuts 3-4 circle screw thread, only rotates, and no longer applies pressure, the form of thread to screw tap
It will not be damaged, Tapping Quality is high, and screw tap abrasion is small, when blind hole tapping or screw tap wear cutting moment of torque increase or chip removal not in time
Screw tap can not attack or exit overload protection and issue overload signal in time, and screw tap is hardly damaged.And the system manufacture at
This is low.Labor intensity is improved, production efficiency is improved, reduces production cost again.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of adaptive tapper mechanism of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the partial enlarged view in Fig. 1 at A in the initial state；
Fig. 4 is the partial enlarged view in Fig. 2 at B in the initial state；
Fig. 5 is the partial enlarged view schematic diagram under normal tapping state at A；
Fig. 6 is the partial enlarged view schematic diagram under normal tapping state at B；
Fig. 7 is the partial enlarged view schematic diagram under improper tapping state at A；
Fig. 8 is the partial enlarged view schematic diagram under improper tapping state at B；；
Fig. 9 is the partial enlarged view in Fig. 1 at C；
Wherein: 1, main shaft, 2, asynchronous motor, 3, gearbox, 4, tapping cylinder, 5, tapping cylinder air inlet；6, screw rod, 7, connect
Nearly switch, 8, nut piston, 9, induction bolt, 10, splined shaft, 11, draw wire encoder, 12, guy bolt, 13, screw tap, 14,
The band quick tap holder of overload protection.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-9, the invention provides the following technical scheme: a kind of adaptive tapper mechanism, the tapper mechanism
Including the following course of work:
1, original state:
Induction bolt 9 of the nut piston 8 on bottom dead center position, nut piston 8 equally in bottom dead center position, is obtained close to switch 7
Less than induction, issued without overload signal；In initial position, draw wire encoder 11 is exported for screw tap 13, main shaft 1, guy bolt 12
Be initial position signal.
2, normal tapping process:
4 air inlet of tapping cylinder, nut piston 8 has downward pressure, and (pressure size passes through decompression according to the requirement of tapping axial force
Valve regulation).Asynchronous motor 2 rotates forward, and slows down (revolving speed height is depending on cutting speed) through gearbox 3, passes through splined shaft 10
Main shaft 1 and screw rod 6 is driven to rotate, guy bolt 12 is moved downward with main shaft, and 13 tapping of screw tap starts.When screw tap 13 cuts 3-4
Circle, what draw wire encoder 11 exported is 3-4 circle signal in place, and tapping cylinder 4 is vented, and tapping axial force is cancelled.When screw tap 13
When cutting designated position, draw wire encoder 11 exports tapping and finishes signal, and asynchronous motor 2 inverts, and main shaft 1 is raised up to initial bit
It sets, completes a working cycles.
3, improper tapping process:
If in tapping process, when blind hole tapping or screw tap 13 wear the cutting moment of torque increase or chip removal screw tap can not attack not in time
Into when, occur overload phenomenon, with overload protection quick change tap holder skid, screw tap do not turn main shaft turn.Since main shaft is axial not
Moving downward leads to nut piston uplink, the uplink together of the induction bolt on nut piston, close to open when row is to close to switch
Just there is overload signal output in pass.Alarm, asynchronous motor stop operating.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of adaptive tapper mechanism, it is characterised in that: including driving mechanism, and driven and rotated by the driving mechanism
Main shaft, a cylinder is fixed on the main shaft for applying axial compressive force to the main shaft, while the main shaft bottom also connects
Screw tap is connected to for carrying out tapping operation to workpiece.
2. a kind of adaptive tapper mechanism according to claim 1, it is characterised in that: the driving mechanism includes asynchronous electricity
Motivation and the gearbox being connect with the asynchronous motor.
3. a kind of adaptive tapper mechanism according to claim 1, it is characterised in that: be additionally provided with spiral shell on the main shaft
Bar, nut piston, splined shaft and draw wire encoder, wherein being provided with induction bolt on the nut piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281808.XA CN110340457A (en) | 2018-04-02 | 2018-04-02 | A kind of adaptive tapper mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281808.XA CN110340457A (en) | 2018-04-02 | 2018-04-02 | A kind of adaptive tapper mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340457A true CN110340457A (en) | 2019-10-18 |
Family
ID=68173651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810281808.XA Pending CN110340457A (en) | 2018-04-02 | 2018-04-02 | A kind of adaptive tapper mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110340457A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202174303U (en) * | 2011-07-27 | 2012-03-28 | 夏福初 | Automatic tapping machine |
| CN204565352U (en) * | 2015-03-10 | 2015-08-19 | 山东世精机械有限公司 | Minor thread tapping machine special |
| CN205571628U (en) * | 2016-05-09 | 2016-09-14 | 广州小出钢管有限公司 | Steel pipe automatic tapping machine |
| CN106112144A (en) * | 2015-01-29 | 2016-11-16 | 张崇栋 | Full-automatic pipe threading machine |
| CN106392204A (en) * | 2016-12-13 | 2017-02-15 | 成都丰耐科技股份有限公司 | Tapping mechanism and tapping equipment |
| CN206869248U (en) * | 2017-07-04 | 2018-01-12 | 中国长江动力集团有限公司 | A kind of band overload protection auto-feed chasing bar |
| CN208162792U (en) * | 2018-04-02 | 2018-11-30 | 苏州安嘉自动化设备有限公司 | A kind of adaptive tapper mechanism |
-
2018
- 2018-04-02 CN CN201810281808.XA patent/CN110340457A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202174303U (en) * | 2011-07-27 | 2012-03-28 | 夏福初 | Automatic tapping machine |
| CN106112144A (en) * | 2015-01-29 | 2016-11-16 | 张崇栋 | Full-automatic pipe threading machine |
| CN204565352U (en) * | 2015-03-10 | 2015-08-19 | 山东世精机械有限公司 | Minor thread tapping machine special |
| CN205571628U (en) * | 2016-05-09 | 2016-09-14 | 广州小出钢管有限公司 | Steel pipe automatic tapping machine |
| CN106392204A (en) * | 2016-12-13 | 2017-02-15 | 成都丰耐科技股份有限公司 | Tapping mechanism and tapping equipment |
| CN206869248U (en) * | 2017-07-04 | 2018-01-12 | 中国长江动力集团有限公司 | A kind of band overload protection auto-feed chasing bar |
| CN208162792U (en) * | 2018-04-02 | 2018-11-30 | 苏州安嘉自动化设备有限公司 | A kind of adaptive tapper mechanism |
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