CN114888366A - Protection device and machining method for cutting threads of vertical and horizontal machine tools - Google Patents

Protection device and machining method for cutting threads of vertical and horizontal machine tools Download PDF

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Publication number
CN114888366A
CN114888366A CN202210487443.2A CN202210487443A CN114888366A CN 114888366 A CN114888366 A CN 114888366A CN 202210487443 A CN202210487443 A CN 202210487443A CN 114888366 A CN114888366 A CN 114888366A
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CN
China
Prior art keywords
sleeve
rotary sleeve
cooling
vertical
screw tap
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
Application number
CN202210487443.2A
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Chinese (zh)
Inventor
王美健
张云玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Vocational University of Industry Technology NUIT
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Nanjing Vocational University of Industry Technology NUIT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Vocational University of Industry Technology NUIT filed Critical Nanjing Vocational University of Industry Technology NUIT
Priority to CN202210487443.2A priority Critical patent/CN114888366A/en
Publication of CN114888366A publication Critical patent/CN114888366A/en
Pending legal-status Critical Current

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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
    • 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
    • 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

Abstract

The invention discloses a protection device and a processing method for cutting threads of a vertical machine tool and a horizontal machine tool, and relates to the technical field of machine tools, wherein the protection device comprises a Morse taper shank, a buffer component and a cooling component, a compression spring and a rectangular spring in the buffer component are arranged in the application, when stress overload such as suppressed chips and the like is encountered during turning, a connecting part of a lug rotary sleeve and an inner spline sleeve is automatically separated, cutting cannot be continued, processed threads cannot be damaged, the protection can be automatically formed when the internal threads of a blind hole and the external threads without a tool withdrawal groove are tapped, the protection can be automatically formed when the internal threads of the blind hole and the external threads without the tool withdrawal groove are tapped, the temperature of a screw tap is reduced through the cooling component, and the screw tap is prevented from being damaged due to overheating.

Description

Protection device and machining method for cutting threads of vertical and horizontal machine tools
Technical Field
The invention relates to the technical field of machine tools, in particular to a protection device and a processing method for cutting threads of vertical and horizontal machine tools.
Background
The existing tapping and cutting are only processed by a manual or tapping machine, the thread of a blind hole can hardly reach the standard even if a drill chuck or a tail frame floating cutter handle is used for tapping a sleeve thread, and a clamp and a cutting tool are easily damaged and scrapped due to invisible reasons of length or wrong program positioning of a machine tool, so that the production efficiency is reduced, the cost loss is large, and the problems are solved by a protection device and a processing method for cutting the thread of a vertical or horizontal machine tool.
Disclosure of Invention
The invention aims to provide a protection device and a processing method for cutting threads of vertical and horizontal machine tools, which aim to overcome the defects in the prior art.
The utility model provides a vertical, horizontal lathe cutting thread's protection device, includes morse taper shank, buffering subassembly and cooling module, morse taper shank inserts in the interior awl of BT handle of a knife and is connected with the BT handle of a knife through the broach bolt, is equipped with interior circular arc reversing sleeve and its outer end threaded connection on the morse taper shank and has the scale axle, and the outer end of scale axle rotates and is connected with the internal spline taper sleeve, and the outer end of internal spline taper sleeve is connected with the fixed cover of screw tap through the die reversing sleeve, is used for fixed screw tap in the fixed cover of screw tap, and the cover is equipped with the lug formula reversing sleeve on the screw tap, is equipped with between lug formula reversing sleeve and the interior circular arc reversing sleeve a plurality of buffering subassembly, be equipped with on the morse taper shank and be used for treating the tapping work piece and carry out the refrigerated cooling module.
Preferably, the radial symmetry of scale axle is equipped with two planes, and one of them is carved with length scale, and another is carved with the moment of torsion correspondence table.
Preferably, the scale shaft is sleeved with a compression spring.
Preferably, the tap is fixed to the tap retaining sleeve by M5 fastening screws.
Preferably, the buffer assembly comprises an orientation rod, a rectangular spring and a blocking plug, one end of the orientation rod is fixed with the lug type rotary sleeve, the other end of the orientation rod is connected to the inner circular arc rotary sleeve in a sliding mode, the blocking plug is fixed to the end portion of the inner circular arc rotary sleeve, and the rectangular spring is sleeved on the orientation rod and located between the lug type rotary sleeve and the inner circular arc rotary sleeve.
Preferably, the cooling assembly comprises a cooling pipe, a fixing ring and a liquid inlet pipe, the cooling pipe is provided with a plurality of liquid inlet cavities communicated with the Morse taper shank, the liquid inlet pipe is fixed on the Morse taper shank and communicated with the liquid inlet cavities, the liquid inlet pipe is connected to a cooling liquid pump, the fixing ring is coaxial with the scale shaft, and each cooling pipe is connected with the inner side of the fixing ring.
A processing method of a protection device for cutting threads of a vertical and horizontal machine tool is characterized in that: the method comprises the following steps:
the method comprises the following steps: the BT cutter handle is arranged in a taper hole of a main shaft of a machine tool, so that the taper surface of the BT cutter handle is tightly pressed on the taper hole surface of the main shaft and is fixed on the main shaft of the machine tool through a broach bolt, and the BT cutter handle is positioned and clamped on the main shaft;
step two: fixing the screw tap to be used in the screw tap fixing sleeve by using an M5 fastening screw;
step three: rotating the scale shaft, compressing the compression spring on the scale shaft, driving the lug type rotary sleeve to move along the directional rod, compressing the rectangular spring on the directional rod, and stopping rotating the scale shaft when the scale shaft moves corresponding scales, wherein the pressure of the spring meets the requirement;
step four: rocking a tailstock hand wheel to enable the screw tap to approach a workpiece orifice;
step five: the machine tool is started, a proper rotating speed is selected, the device automatically starts cutting, the cooling liquid pump is started at the moment, the cooling liquid is sprayed to the workpiece through the liquid inlet pipe and the cooling pipe to cool the workpiece during cutting, the connection part of the lug rotary sleeve and the inner spline taper sleeve is automatically separated from each other in the midway when stress overload such as chip blocking is met, cutting cannot be continued, and protection can be automatically formed when the blind hole internal thread and the tool withdrawal groove-free external thread are tapped and reach the bottom of the workpiece.
The invention has the following advantages:
when the device is used, the compression spring and the rectangular spring in the buffer assembly are arranged, when stress overload such as chip blocking occurs in the middle of turning, the connection part of the lug type rotary sleeve and the inner spline taper sleeve is automatically separated, cutting cannot be continued, machined threads cannot be damaged, similarly, when blind hole internal threads and tool withdrawal groove-free external threads are tapped, protection can be automatically formed when the blind hole internal threads and the tool withdrawal groove-free external threads reach the bottom of a workpiece, the temperature of the screw tap is reduced through cooling liquid of the cooling assembly, and the screw tap is prevented from being damaged due to overheating.
Drawings
Fig. 1 and 2 are schematic structural diagrams of the present invention at different angles.
Fig. 3 is a schematic structural diagram of the BT knife handle of the present invention.
FIG. 4 is a schematic view of the structure of the broach bolt of the present invention.
FIG. 5 is a schematic view of the present invention after installation of the tap.
Wherein: 1. the tool comprises a Morse taper shank, 11 an inner arc rotary sleeve, 2 a BT tool shank, 21 a broach bolt, 3 a scale shaft, 31 a compression spring, 4 an inner spline taper sleeve, 41 a die rotary sleeve, 5 a tap fixing sleeve, 6 a lug type rotary sleeve, 7 a buffer component, 71 a directional rod, 72 a blocking plug, 73 a rectangular spring, 8 a cooling component, 81 a cooling pipe, 82 a liquid inlet pipe, 83 a fixing ring, 9 a tap, 91 and M5 fastening screws.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention.
As shown in fig. 1-5, the invention provides a protection device for cutting threads of a vertical and horizontal machine tool, which comprises a morse taper shank 1, a buffer component 7 and a cooling component 8, wherein the morse taper shank 1 is inserted into an inner cone of a BT tool holder 2 and is connected with the BT tool holder 2 through a broach bolt 21, the morse taper shank 1 is provided with an inner arc rotary sleeve 11, the outer end of the inner arc rotary sleeve is in threaded connection with a scale shaft 3, the scale shaft 3 is sleeved with a compression spring 31, two planes are symmetrically arranged in the radial direction of the scale shaft 3, one of the planes is carved with a length scale, the other plane is carved with a torque corresponding table, the outer end of the scale shaft 3 is rotatably connected with an inner spline taper sleeve 4, the outer end of the inner spline taper sleeve 4 is connected with a tap fixing sleeve 5 through a threading die rotary sleeve 41, the tap fixing sleeve 5 is used for fixing a tap 9, the tap fixing sleeve 9 is sleeved with a lug type rotary sleeve 6, a plurality of the buffer components 7 are arranged between the lug type rotary sleeve 6 and the inner arc rotary sleeve 11, the Morse taper shank 1 is provided with the cooling component 8 for cooling a workpiece to be tapped.
It should be noted that the tap 9 is secured to the tap holder 5 by M5 fastening screws.
In addition, the buffer assembly 7 comprises an orientation rod 71, a rectangular spring 73 and a blocking plug 72, wherein one end of the orientation rod 71 is fixed with the lug type rotary sleeve 6, the other end is slidably connected to the inner circular arc rotary sleeve 11 and is fixed with the blocking plug 72 at the end thereof, and the rectangular spring 73 is arranged on the orientation rod 71 and is positioned between the lug type rotary sleeve 6 and the inner circular arc rotary sleeve 11.
In addition, the cooling assembly 8 comprises a cooling pipe 81, a fixing ring 83 and a liquid inlet pipe 82, the cooling pipe 81 is provided with a plurality of liquid inlet cavities communicated with the Morse taper shank 1, the liquid inlet pipe 82 is fixed on the Morse taper shank 1 and communicated with the liquid inlet cavities, the liquid inlet pipe 82 is connected to a cooling liquid pump, the fixing ring 83 is coaxially arranged with the scale shaft 3, and each cooling pipe 81 is connected with the inner side of the fixing ring 83.
A processing method of a protection device for cutting threads of a vertical and horizontal machine tool comprises the following steps:
the method comprises the following steps: the BT cutter handle 2 is arranged in a taper hole of a main shaft of a machine tool, so that the taper surface of the BT cutter handle 2 is tightly pressed on the taper hole surface of the main shaft and is fixed on the main shaft of the machine tool through a cutter pulling bolt 21, and the BT cutter handle 2 is positioned and clamped on the main shaft;
step two: fixing the tap 9 to be used in the tap fixing sleeve 5 by an M5 fastening screw 91;
step three: the scale shaft 3 is rotated, the compression spring 31 on the scale shaft 3 is compressed, and the lug type rotary sleeve 6 is driven to move along the directional rod 71, so that the rectangular spring 73 on the directional rod 71 is compressed, when the scale shaft 3 moves corresponding scales, the scale shaft 3 stops rotating, and at the moment, the spring pressure meets the requirement;
step four: shaking the tailstock hand wheel to enable the screw tap 9 to approach the workpiece orifice;
step five: the machine tool is started, a proper rotating speed is selected, the device automatically starts cutting, the cooling liquid pump is started at the moment, the cooling liquid is sprayed to the workpiece through the liquid inlet pipe 82 and the cooling pipe 81 to cool the workpiece during cutting, if stress overload conditions such as chip blocking and the like occur midway, the connecting part of the lug rotary sleeve 6 and the inner spline taper sleeve 4 is automatically separated, cutting cannot be continued, and when tapping blind hole internal threads and tool withdrawal groove-free external threads, the bottom of the workpiece is automatically protected.
In summary, the compression spring 31 and the rectangular spring 73 in the buffer assembly 7 are arranged in the invention, when stress overload such as chip blocking occurs in the middle of turning, the connection part of the lug type rotary sleeve 6 and the internal spline taper sleeve 4 is automatically separated, cutting cannot be continued, processed threads cannot be damaged, similarly, when tapping blind hole internal threads and tool withdrawal groove-free external threads, protection can be automatically formed when the connection part reaches the bottom of a workpiece, the temperature of the screw tap 9 is reduced by cooling liquid in the cooling assembly 8, and the screw tap 9 is prevented from being damaged due to overheating.
The invention has been described above with reference to the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various insubstantial modifications of the invention, including those based on the spirit and scope of the invention, or other applications without modification.

Claims (7)

1. The utility model provides a protection device of vertical, horizontal lathe cutting screw thread which characterized in that: comprises a Morse taper shank (1), a buffer component (7) and a cooling component (8), the Morse taper shank (1) is inserted into an inner cone of the BT shank (2) and is connected with the BT shank (2) through a broach bolt (21), an inner circular arc rotary sleeve (11) is arranged on the Morse taper shank (1), a scale shaft (3) is in threaded connection with the outer end of the inner circular arc rotary sleeve, an inner spline taper sleeve (4) is rotatably connected with the outer end of the scale shaft (3), a screw tap fixing sleeve (5) is connected with the outer end of the inner spline taper sleeve (4) through a threading die rotary sleeve (41), a screw tap (9) is fixed in the screw tap fixing sleeve (5), a lug type rotary sleeve (6) is sleeved on the screw tap fixing sleeve (9), a plurality of buffer assemblies (7) are arranged between the lug type rotary sleeve (6) and the inner circular arc rotary sleeve (11), the Morse taper shank (1) is provided with the cooling component (8) for cooling a workpiece to be tapped.
2. A thread cutting protector for vertical and horizontal machine tools according to claim 1, wherein: two planes are symmetrically arranged on the scale shaft (3) in the radial direction, wherein one plane is provided with a length scale, and the other plane is provided with a torque corresponding table.
3. A thread cutting protector for vertical and horizontal machine tools according to claim 1, wherein: and a compression spring (31) is sleeved on the scale shaft (3).
4. A thread cutting protector for vertical and horizontal machine tools according to claim 1, wherein: the tap (9) is fixed with the tap fixing sleeve (5) through an M5 fastening screw.
5. A thread cutting protector for vertical and horizontal machine tools according to claim 1, wherein: the buffer assembly (7) comprises an orientation rod (71), a rectangular spring (73) and a blocking plug (72), one end of the orientation rod (71) is fixed with the lug type rotary sleeve (6), the other end of the orientation rod is connected to the inner circular arc rotary sleeve (11) in a sliding mode, the blocking plug (72) is fixed to the end portion of the inner circular arc rotary sleeve, and the rectangular spring sleeve (73) is arranged on the orientation rod (71) and located between the lug type rotary sleeve (6) and the inner circular arc rotary sleeve (11).
6. A thread cutting protector for vertical and horizontal machine tools according to claim 1, wherein: cooling unit (8) include cooling tube (81), solid fixed ring (83) and feed liquor pipe (82), cooling tube (81) be equipped with a plurality of and with the feed liquor chamber intercommunication of morse taper shank (1), feed liquor pipe (82) be fixed in on morse taper shank (1) and with feed liquor chamber intercommunication, feed liquor pipe (82) are connected in the coolant pump, gu fixed ring (83) and scale axle (3) coaxial setting, every cooling tube (81) all with solid fixed ring (83) inboard be connected.
7. The method for machining the thread cutting protector of the vertical and horizontal machine tool according to claim 1, wherein: the method comprises the following steps:
the method comprises the following steps: the BT cutter handle (2) is arranged in a taper hole of a main shaft of a machine tool, so that the taper surface of the BT cutter handle (2) is tightly pressed on the taper hole surface of the main shaft and is fixed on the main shaft of the machine tool through a cutter pulling bolt (21), and the BT cutter handle (2) is positioned and clamped on the main shaft;
step two: fixing the screw tap (9) to be used in the screw tap fixing sleeve (5) through an M5 fastening screw (91);
step three: the scale shaft (3) is rotated, a compression spring (31) on the scale shaft (3) is compressed and drives a lug type rotary sleeve (6) to move along the directional rod (71), so that a rectangular spring (73) on the directional rod (71) is compressed, when the scale shaft (3) moves corresponding scales, the scale shaft (3) stops rotating, and at the moment, the spring pressure meets the requirement;
step four: shaking the tailstock hand wheel to enable the screw tap (9) to approach the workpiece orifice;
step five: the machine tool is started, a proper rotating speed is selected, the device automatically starts cutting, the cooling liquid pump is started at the moment, the cooling liquid is sprayed to the workpiece through the liquid inlet pipe (82) and the cooling pipe (81) to cool the workpiece during cutting, if stress overload conditions such as chip blocking and the like occur in midway, the connecting part of the lug rotary sleeve (6) and the inner spline taper sleeve (4) is automatically separated, cutting cannot be continued, and when tapping blind hole internal threads and tool withdrawal groove-free external threads, the bottom of the workpiece is reached to form protection automatically.
CN202210487443.2A 2022-05-06 2022-05-06 Protection device and machining method for cutting threads of vertical and horizontal machine tools Pending CN114888366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210487443.2A CN114888366A (en) 2022-05-06 2022-05-06 Protection device and machining method for cutting threads of vertical and horizontal machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210487443.2A CN114888366A (en) 2022-05-06 2022-05-06 Protection device and machining method for cutting threads of vertical and horizontal machine tools

Publications (1)

Publication Number Publication Date
CN114888366A true CN114888366A (en) 2022-08-12

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CN202210487443.2A Pending CN114888366A (en) 2022-05-06 2022-05-06 Protection device and machining method for cutting threads of vertical and horizontal machine tools

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CN (1) CN114888366A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201792057U (en) * 2010-09-02 2011-04-13 江西铜业股份有限公司 Overload-protection wire twisting chuck
CN202239996U (en) * 2011-08-02 2012-05-30 大连骅尔重工有限公司 Simple interchangeable manual thread tapper
CN105312941A (en) * 2014-07-09 2016-02-10 陆如东 Elastic knife handle for numerically-controlled machine tool
CN207086936U (en) * 2017-09-04 2018-03-13 马鞍山市凤天合金刀模有限公司 It is a kind of to have from the alloy cutter for cooling down cooling structure
CN210306102U (en) * 2019-07-11 2020-04-14 扬州市金诺尔不锈钢有限公司 Tapping device for stainless steel accessories
CN214236624U (en) * 2021-01-26 2021-09-21 南京工业职业技术大学 Tapping overload protection clamping fixture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201792057U (en) * 2010-09-02 2011-04-13 江西铜业股份有限公司 Overload-protection wire twisting chuck
CN202239996U (en) * 2011-08-02 2012-05-30 大连骅尔重工有限公司 Simple interchangeable manual thread tapper
CN105312941A (en) * 2014-07-09 2016-02-10 陆如东 Elastic knife handle for numerically-controlled machine tool
CN207086936U (en) * 2017-09-04 2018-03-13 马鞍山市凤天合金刀模有限公司 It is a kind of to have from the alloy cutter for cooling down cooling structure
CN210306102U (en) * 2019-07-11 2020-04-14 扬州市金诺尔不锈钢有限公司 Tapping device for stainless steel accessories
CN214236624U (en) * 2021-01-26 2021-09-21 南京工业职业技术大学 Tapping overload protection clamping fixture

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