CN115781327B - Turning and milling combined machining device for arc-shaped inclined solenoid - Google Patents
Turning and milling combined machining device for arc-shaped inclined solenoid Download PDFInfo
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- CN115781327B CN115781327B CN202211719612.7A CN202211719612A CN115781327B CN 115781327 B CN115781327 B CN 115781327B CN 202211719612 A CN202211719612 A CN 202211719612A CN 115781327 B CN115781327 B CN 115781327B
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- 238000003754 machining Methods 0.000 title claims abstract description 19
- 238000003801 milling Methods 0.000 title claims abstract description 17
- 238000007514 turning Methods 0.000 title claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 87
- 230000000670 limiting effect Effects 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a turning and milling combined machining tool for an arc-shaped inclined solenoid, which belongs to the technical field of turning and milling combined machining, and comprises two arc-shaped pipe adjusting assemblies which are oppositely arranged, wherein one arc-shaped pipe adjusting assembly is connected with a machine tool driving chuck, the other arc-shaped pipe adjusting assembly is connected with a machine tool driven chuck, and the arc-shaped inclined solenoid is connected between the two arc-shaped pipe adjusting assemblies; the arc-shaped pipe adjusting assembly comprises a transition plate, a chuck connecting shaft, a transition sleeve, a connecting seat, a T-shaped sliding block, a pull rod and a limiting plate. During processing, the arc-shaped pipe adjusting assembly is connected with the driving chuck and the driven chuck of the machine tool, and the arc-shaped inclined spiral groove is processed along with the linkage of the chuck and the milling cutter.
Description
Technical Field
The invention belongs to the technical field of turning and milling composite machining, and particularly relates to a turning and milling composite machining tool for an arc-shaped inclined solenoid.
Background
When milling a spiral groove with a certain angle on a circular arc-shaped workpiece, a five-axis machine tool is generally adopted to process according to the upper half and the lower half of the sequence. If the spiral groove on the upper half part of the workpiece is milled on a five-axis machine tool, and then the workpiece is disassembled and turned 180 degrees for fixing, the spiral groove on the other part is milled, the existing technology cannot be used for one-step processing and forming, and the processing process is time-consuming and labor-consuming. Errors exist in the two-time clamping, accurate transition of the spiral groove processed twice is difficult to ensure, and the processing precision of the spiral groove is reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a turning and milling combined machining tool for an arc-shaped inclined solenoid, which has reasonable structural design and high machining efficiency, and is used for finishing the machining of the spiral groove of the arc-shaped inclined solenoid by one-time clamping.
Therefore, the invention adopts the following technical scheme:
a turning and milling combined machining tool for an arc-shaped inclined solenoid comprises two arc-shaped pipe adjusting assemblies which are arranged oppositely, wherein one arc-shaped pipe adjusting assembly is connected with a machine tool driving chuck, the other arc-shaped pipe adjusting assembly is connected with a machine tool driven chuck, and the arc-shaped inclined solenoid is connected between the two arc-shaped pipe adjusting assemblies;
The arc-shaped pipe adjusting assembly comprises a transition plate, a chuck connecting shaft, a transition sleeve, a connecting seat, a T-shaped sliding block, a pull rod and a limiting plate;
the transition plate is arranged vertically, the back of the transition plate faces the chuck the front face is opposite to the chuck; the chuck connecting shaft is vertical to the transition plate and is fixed on the back surface of the transition plate, and is used for connecting with the chuck; the transition sleeve is fixedly connected to the front surface of the transition plate;
The transition sleeve is cylindrical, the top surface of the transition sleeve is perpendicular to the central axis of the transition sleeve, the included angle between the bottom surface of the transition sleeve and the central axis of the transition sleeve is 45 degrees, and the bottom surface of the transition sleeve is connected with the transition plate; the bottom surface of the transition sleeve is provided with a plurality of screw holes along the circumferential direction, and the screw holes are parallel to the central axis of the transition sleeve; the front surface of the transition plate is provided with a through hole corresponding to the screw hole, and a screw rod is arranged in the through hole; the center of the transition sleeve is provided with a through center hole which forms a pull rod limiting hole; the front surface of the transition plate is provided with a through hole corresponding to the pull rod limiting hole;
the connecting seat is fixedly connected to the head end of the transition sleeve, the connecting seat comprises a base and a clamping column which are fixedly integrated, the base is cylindrical, the clamping column is an arc column, and the clamping column is fixed at the top of the connecting seat; the bottom surface of the connecting seat is provided with a plurality of screw holes along the circumferential direction, the transition sleeve is provided with through holes corresponding to the screw holes, and the clamping and fixing column is connected with the connecting seat through a screw rod;
The diameter of the clamping column is equal to the inner diameter of the arc-shaped inclined solenoid, the arc-shaped diameter of the clamping column is equal to the arc-shaped diameter of the arc-shaped inclined solenoid, and a through hole coaxial with the pull rod limiting hole is formed in the center of the clamping column; four T-shaped grooves are formed in the outer wall of the clamping column, the inner sides of the T-shaped grooves are communicated with a through hole in the center of the clamping column, and the outer sides of the T-shaped grooves penetrate through the outer wall of the clamping column; a T-shaped sliding block is connected in the T-shaped groove; the end face of the head end of the clamping column is fixedly connected with a limiting plate through a bolt, the center of the limiting plate is provided with a round hole, and a key slot is arranged in the round hole;
The head end of the pull rod penetrates through a through hole at the bottom of the transition plate, the head end of the pull rod penetrates through the transition sleeve, the connecting seat and the limiting plate, the tail end of the pull rod is provided with threads and is exposed out of the transition sleeve, and the tail end of the pull rod is connected with a nut; a key slot is arranged on the outer wall of the head end of the pull rod, a flat key is arranged in the key groove, the flat key is in sliding connection with the key groove of the limiting plate; the outer wall in the middle of the pull rod is circumferentially provided with four rectangular grooves, and the four T-shaped sliding blocks are respectively clamped in the rectangular grooves.
Further, the top surface of the base is perpendicular to the central axis of the base, and the included angle between the bottom surface of the base and the central axis of the base is 60-90 degrees.
Further, the T-shaped sliding block comprises a rectangular block, the left side surface and the right side surface of the rectangular block are respectively provided with a protruding guide block, and the included angle between the guide blocks and the bottom surface of the T-shaped sliding block is 60-70 degrees.
Further, when the T-shaped sliding block moves to the top of the clamping column, the T-shaped sliding block is positioned in the clamping column; when the T-shaped sliding block moves to the lower part of the clamping column, the edge of the T-shaped sliding block is exposed out of the clamping column.
Further, the chuck connecting shaft is fixedly connected with the transition plate through bolts.
The invention has the beneficial effects that:
1. The machining process of the whole inclined spiral groove can be finished through one-time clamping, and secondary clamping is not needed; the problems that the original secondary clamping is time-consuming and labor-consuming, machining errors are increased due to errors of the secondary clamping, and machining accuracy is reduced are solved;
2. According to the invention, the nut at the tail end of the pull rod is adjusted to drive the pull rod and the T-shaped sliding block to move back and forth, so that the arc-shaped inclined solenoid is tensioned and fixed; the clamping and the disassembly are convenient, and the on-site production is convenient;
3. the base and the bottom surface have the contained angle with the base axis, can change the connecting seat according to different arc inclined solenoid specifications, and convenient processing operation.
Drawings
FIG. 1 is a schematic view of the use of the present invention;
FIG. 2 is a schematic structural view of an arced tube adjustment assembly;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a side view of FIG. 2;
FIG. 5 is a cross-sectional view of A-A of FIG. 4;
FIG. 6 is a schematic view of the construction of the transition boot of the present invention;
FIG. 7 is a schematic view of the structure of the connecting base of the present invention;
FIG. 8 is a schematic view of the structure of the T-shaped slider of the present invention;
FIG. 9 is a schematic view of the structure of the limiting plate of the present invention;
FIG. 10 is a schematic view of the construction of the tie rod of the present invention;
FIG. 11 is a schematic view of an arc chute solenoid of the present invention;
In the figure: the device comprises a 1-driving chuck, a 2-driven chuck, a 3-arc tube adjusting component, a 4-arc inclined solenoid, a 5-transition plate, a 6-chuck connecting shaft, a 7-transition sleeve, an 8-connecting seat, an 81-base, an 82-clamping column, a 821-T-shaped groove, a 9-limiting plate, a 10-pull rod, a 101-flat key, an 11-T-shaped sliding block and a 111-guide block.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1, the turning and milling combined machining tool for the arc-shaped inclined solenoid comprises two arc-shaped pipe adjusting assemblies 3 which are oppositely arranged, wherein one arc-shaped pipe adjusting assembly 3 is connected with a machine tool driving chuck 1, the other arc-shaped pipe adjusting assembly 3 is connected with a machine tool driven chuck 2, and the arc-shaped inclined solenoid 4 is connected between the two arc-shaped pipe adjusting assemblies 3. During processing, the driving chuck 1 drives the arc-shaped inclined solenoid 4 to rotate, and the arc-shaped inclined solenoid is matched with a milling cutter to process the inclined spiral.
The arc tube adjusting assembly 3 comprises a transition plate 5, a chuck connecting shaft 6, a transition sleeve 7, a connecting seat 8, a T-shaped sliding block 11, a pull rod 10 and a limiting plate 9.
As shown in fig. 2 to 4, the transition plate 5 is vertically arranged, the lower part of the transition plate 5 is rectangular, the upper part of the transition plate is semicircular, and the back surface of the transition plate 5 faces the chuck and the front surface of the transition plate faces away from the chuck. The chuck connecting shaft 6 is perpendicular to the transition plate 5 and fixed to the back surface of the transition plate 5 through bolts, the chuck connecting shaft 6 is connected to the semicircular position, and the chuck connecting shaft 6 is used for connecting a chuck. The transition sleeve 7 is fixedly connected to the front surface of the transition plate 5.
As shown in fig. 2, 3, 4 and 6, the transition sleeve 7 is cylindrical, the top surface of the transition sleeve 7 is perpendicular to the central axis of the transition sleeve 7, the included angle between the bottom surface of the transition sleeve 7 and the central axis of the transition sleeve 7 is 45 degrees, and the bottom surface of the transition sleeve 7 is connected with the transition plate 5. The bottom surface of the transition sleeve 7 is provided with a plurality of screw holes and positioning holes along the circumferential direction, and the screw holes and the positioning holes are parallel to the central axis of the transition sleeve 7. The front surface of the transition plate 5 is provided with a through hole corresponding to the screw hole, and a screw rod is arranged in the through hole. The center of the transition sleeve 7 is provided with a through center hole which forms a pull rod limiting hole; the front surface of the transition plate 5 is provided with a through hole corresponding to the pull rod limiting hole.
As shown in fig. 2, 3, 4 and 7, the connecting seat 8 is fixedly connected to the head end of the transition sleeve 7, the connecting seat 8 comprises a base 81 and a clamping column 82 which are integrally fixed, the base 81 is cylindrical, the clamping column 82 is an arc column, and the clamping column 82 is fixed at the top of the connecting seat 8. The top surface of the base 81 is perpendicular to the central axis of the base 81, and the included angle between the bottom surface of the base 81 and the central axis of the base 81 is 60-90 degrees. A plurality of screw holes are circumferentially arranged on the bottom surface of the base 81, through holes corresponding to the screw holes are arranged on the transition sleeve 7, and the transition sleeve 7 is connected with the connecting seat 8 through screws.
As shown in fig. 6 and 7, the diameter of the clamping column 82 is equal to the inner diameter of the arc-shaped inclined solenoid 4, the arc-shaped diameter of the clamping column 82 is equal to the arc-shaped diameter of the arc-shaped inclined solenoid 4, a through hole coaxial with the pull rod limiting hole is formed in the center of the clamping column 82, and the through hole is used for penetrating the pull rod 10. Four T-shaped grooves 821 are formed in the outer wall of the clamping column 82, through holes in the center of the clamping column 82 are formed in the inner sides of the T-shaped grooves 821, and the outer sides of the T-shaped grooves 821 penetrate through the outer wall of the clamping column 82. T-shaped sliding blocks 11 are connected in the T-shaped grooves 821, the T-shaped sliding blocks 11 comprise rectangular blocks, protruding guide blocks 111 are respectively arranged on the left side face and the right side face of each rectangular block, and an included angle between each guide block 111 and the bottom face of each T-shaped sliding block 11 is 60-70 degrees. When the T-shaped sliding block 11 moves to the top of the clamping column 82, the T-shaped sliding block 11 is positioned in the clamping column 82; when the T-shaped slide block 11 moves to the lower part of the clamping column 82, the edge of the T-shaped slide block 11 is exposed out of the clamping column 82. The end face of the head end of the clamping column 82 is fixedly connected with a limiting plate 9 through a bolt, a round hole is formed in the center of the limiting plate 9, and a key groove is formed in the round hole.
As shown in fig. 4 and 10, the head end of the pull rod 10 is penetrated by a through hole at the bottom of the transition plate 5, the head end of the pull rod 10 passes through the transition sleeve 7, the connecting seat 8 and the limiting plate 9, the tail end of the pull rod 10 is provided with threads and is exposed out of the transition sleeve 7, and a nut is connected to the tail end of the pull rod 10. The outer wall of the head end of the pull rod 10 is provided with a key groove, a flat key 101 is arranged in the key groove, and the flat key 101 is in sliding connection with the key groove of the limiting plate 9; the outer wall of the middle part of the pull rod 10 is circumferentially provided with four rectangular grooves, and four T-shaped sliding blocks 11 are respectively clamped in the rectangular grooves.
The working principle of the invention is as follows:
The bottom surface of the base 81 and the central axis of the base 81 are provided with an included angle, and the arc-shaped inclined solenoids 4 with different central angles are adapted, wherein the sum of the included angle between the bottom surface of the base 81 and the central axis of the base 81 and half of the central angle is 90 degrees.
The radian of the clamping and fixing column 82 is the same as that of the arc-shaped inclined solenoid 4, so that the clamping and fixing column 82 can be clamped into the arc-shaped inclined solenoid 4, and the positioning accuracy is improved.
The nut at the tail end of the rotary pull rod 10 drives the pull rod 10 to move back and forth, and the pull rod 10 can only move up and down without rotating due to the limiting effect of the limiting plate 9 and the flat key 101, when the pull rod 10 moves, the T-shaped sliding block 11 is driven to move up and down in the cross groove of the connecting seat 8, and the T-shaped sliding block 11 gradually expands outwards in the moving process, and the arc-shaped inclined solenoid 4 is expanded, so that the arc-shaped inclined solenoid 4 cannot rotate, and the arc-shaped inclined solenoid 4 is clamped.
Claims (5)
1. The turning and milling combined machining tool for the arc-shaped inclined solenoid is characterized by comprising two arc-shaped pipe adjusting assemblies (3) which are oppositely arranged, wherein one arc-shaped pipe adjusting assembly (3) is connected with a machine tool driving chuck (1), the other arc-shaped pipe adjusting assembly (3) is connected with a machine tool driven chuck (2), and the arc-shaped inclined solenoid (4) is connected between the two arc-shaped pipe adjusting assemblies (3);
The arc-shaped pipe adjusting assembly (3) comprises a transition plate (5), a chuck connecting shaft (6), a transition sleeve (7), a connecting seat (8), a T-shaped sliding block (11), a pull rod (10) and a limiting plate (9);
The transition plate (5) is vertically arranged, and the back surface of the transition plate (5) faces the chuck and the front surface of the transition plate faces away from the chuck; the chuck connecting shaft (6) is perpendicular to the transition plate (5) and is fixed on the back surface of the transition plate (5), and the chuck connecting shaft (6) is used for connecting a chuck; the transition sleeve (7) is fixedly connected to the front surface of the transition plate (5);
The transition sleeve (7) is cylindrical, the top surface of the transition sleeve (7) is perpendicular to the central axis of the transition sleeve (7), the included angle between the bottom surface of the transition sleeve and the central axis of the transition sleeve (7) is 45 degrees, and the bottom surface of the transition sleeve (7) is connected with the transition plate (5); the bottom surface of the transition sleeve (7) is provided with a plurality of screw holes along the circumferential direction, and the screw holes are parallel to the central axis of the transition sleeve (7); the front surface of the transition plate (5) is provided with a through hole corresponding to the screw hole, and a screw rod is arranged in the through hole; the center of the transition sleeve (7) is provided with a through center hole which forms a pull rod limiting hole; the front surface of the transition plate (5) is provided with a through hole corresponding to the pull rod limiting hole;
The connecting seat (8) is fixedly connected to the head end of the transition sleeve (7), the connecting seat (8) comprises a base (81) and a clamping column (82) which are fixedly integrated, the base (81) is cylindrical, the clamping column (82) is an arc column, and the clamping column (82) is fixed to the top of the connecting seat (8); the bottom surface of the connecting seat (8) is provided with a plurality of screw holes along the circumferential direction, the transition sleeve (7) is provided with through holes corresponding to the screw holes, and the transition sleeve (7) is connected with the connecting seat (8) through a screw rod;
The diameter of the clamping column (82) is equal to the inner diameter of the arc-shaped inclined solenoid (4), the arc-shaped diameter of the clamping column (82) is equal to the arc-shaped diameter of the arc-shaped inclined solenoid (4), and a through hole coaxial with the pull rod limiting hole is formed in the center of the clamping column (82); four T-shaped grooves (821) are formed in the outer wall of the clamping column (82), the inner sides of the T-shaped grooves (821) are communicated with a through hole in the center of the clamping column (82), and the outer sides of the T-shaped grooves (821) penetrate through the outer wall of the clamping column (82); a T-shaped sliding block (11) is connected in the T-shaped groove (821); the end face of the head end of the clamping column (82) is fixedly connected with a limiting plate (9) through a bolt, a round hole is formed in the center of the limiting plate (9), and a key slot is formed in the round hole;
The head end of the pull rod (10) is penetrated by a through hole at the bottom of the transition plate (5), the head end of the pull rod (10) passes through the transition sleeve (7), the connecting seat (8) and the limiting plate (9), the tail end of the pull rod (10) is provided with threads and is exposed out of the transition sleeve (7), and the tail end of the pull rod (10) is connected with a nut; a key groove is formed in the outer wall of the head end of the pull rod (10), a flat key (101) is arranged in the key groove, and the flat key (101) is in sliding connection with the key groove of the limiting plate (9); the outer wall of the middle part of the pull rod (10) is circumferentially provided with four rectangular grooves, and four T-shaped sliding blocks (11) are respectively clamped in the rectangular grooves.
2. The turning and milling combined machining tool for the arc-shaped inclined solenoid according to claim 1, wherein the top surface of the base (81) is perpendicular to the central axis of the base (81), and an included angle between the bottom surface of the base (81) and the central axis of the base (81) is 60-90 degrees.
3. The turning and milling combined machining tool for the arc-shaped inclined solenoid according to claim 1, wherein the T-shaped sliding block (11) comprises a rectangular block, protruding guide blocks (111) are respectively arranged on the left side surface and the right side surface of the rectangular block, and an included angle between the guide blocks (111) and the bottom surface of the T-shaped sliding block (11) is 60-70 degrees.
4. The turning and milling combined machining tool for the arc-shaped inclined solenoid according to claim 3, wherein when the T-shaped sliding block (11) moves to the top of the clamping column (82), the T-shaped sliding block (11) is positioned in the clamping column (82); when the T-shaped sliding block (11) moves to the lower part of the clamping column (82), the edge of the T-shaped sliding block (11) is exposed out of the clamping column (82).
5. The turning and milling composite machining tool for the arc-shaped inclined solenoid according to claim 1, wherein the chuck connecting shaft (6) is fixedly connected with the transition plate (5) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211719612.7A CN115781327B (en) | 2022-12-30 | 2022-12-30 | Turning and milling combined machining device for arc-shaped inclined solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211719612.7A CN115781327B (en) | 2022-12-30 | 2022-12-30 | Turning and milling combined machining device for arc-shaped inclined solenoid |
Publications (2)
| Publication Number | Publication Date |
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| CN115781327A CN115781327A (en) | 2023-03-14 |
| CN115781327B true CN115781327B (en) | 2024-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211719612.7A Active CN115781327B (en) | 2022-12-30 | 2022-12-30 | Turning and milling combined machining device for arc-shaped inclined solenoid |
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| CN (1) | CN115781327B (en) |
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| CN107971770A (en) * | 2017-12-23 | 2018-05-01 | 重庆市环岛机械制造有限公司 | A kind of numerically-controlled machine tool processing collet |
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| DE3045536A1 (en) * | 1980-12-03 | 1982-07-01 | Fa. Wilhelm Blessing, 7302 Ostfildern | Mechanism securing lathe chuck in centred position - includes expanding pins with taper ends engaging in annular groove |
| DE3402564A1 (en) * | 1984-01-26 | 1985-08-01 | Hellmut Ing.(grad.) 7000 Stuttgart Boullie | Clamping mandrel for clamping workpieces and tools, especially for pipes and pipe bends |
| DE4329372A1 (en) * | 1993-09-01 | 1995-03-02 | Manfred Schanz | Clamping device for holding workpieces |
| JP3079162U (en) * | 2001-01-25 | 2001-08-10 | 清池 王 | Composite device |
| CN204771694U (en) * | 2015-06-18 | 2015-11-18 | 合肥福晟机械制造有限公司 | Quick locking device of U molding die spare |
| CN209565858U (en) * | 2019-02-27 | 2019-11-01 | 横店集团英洛华电气有限公司 | Taper hole fixture for machining key slot |
| CN110142446A (en) * | 2019-05-28 | 2019-08-20 | 南京信息职业技术学院 | Arc groove milling and mounting tool |
| CN214292007U (en) * | 2021-01-28 | 2021-09-28 | 锦州华兴光饰机械有限公司 | Universal fixture for milling shapes of elbow parts |
| CN214684321U (en) * | 2021-02-05 | 2021-11-12 | 江西佳时特数控技术有限公司 | Take boss excircle parts machining frock |
| CN214392410U (en) * | 2021-03-09 | 2021-10-15 | 郑州天瑞智能装备科技有限公司 | Thin-wall elbow joint machining auxiliary device |
| CN215033729U (en) * | 2021-05-24 | 2021-12-07 | 苏州和吉大机电有限公司 | Multi-angle turning and milling tool for machining center |
| CN216632620U (en) * | 2021-12-30 | 2022-05-31 | 福机机械工业(宁波)有限公司 | Car of car butt joint return bend adds clamping apparatus |
| CN218136387U (en) * | 2022-10-10 | 2022-12-27 | 贵州航越科技有限公司 | Replaceable tension tool |
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2022
- 2022-12-30 CN CN202211719612.7A patent/CN115781327B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955263A (en) * | 1989-06-30 | 1990-09-11 | Tri Tool Inc. | Pipe end preparation tool having improved torque reacting and clamping capabilities |
| CN107971770A (en) * | 2017-12-23 | 2018-05-01 | 重庆市环岛机械制造有限公司 | A kind of numerically-controlled machine tool processing collet |
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| CN115781327A (en) | 2023-03-14 |
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