CN111558732A - Double-lathe tool machining lathe for slender workpiece - Google Patents
Double-lathe tool machining lathe for slender workpiece Download PDFInfo
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- CN111558732A CN111558732A CN202010439149.5A CN202010439149A CN111558732A CN 111558732 A CN111558732 A CN 111558732A CN 202010439149 A CN202010439149 A CN 202010439149A CN 111558732 A CN111558732 A CN 111558732A
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- chuck
- fixed
- turning
- tool
- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
- B23B5/40—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning spherical surfaces inside or outside
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a lathe for processing a double turning tool of a slender workpiece, which comprises two chuck assemblies which are symmetrically arranged up and down, wherein the chuck assembly at the upper side is fixed at the upper end of a frame, the chuck assembly at the lower side is fixed on a lifting seat of a lifting assembly, and the lifting assembly is arranged at the lower end of the frame; the two turning assemblies are arranged between the two chuck assemblies; the chuck assembly comprises a three-jaw chuck, the three-jaw chuck is hinged on a chuck base, a first motor for driving the three-jaw chuck to rotate is arranged on the chuck base, and a long and thin workpiece to be machined is clamped on the three-jaw chucks of the two chuck assemblies; the turning assembly comprises a tool holder, a turning tool is fixed on the tool holder, and the turning tool faces the slender workpiece. The invention clamps the slender workpiece by the two chucks and rotates the slender workpiece at the same rotating speed, thereby reducing the shearing force and the jumping of the slender workpiece when being cut; the slender rod is turned by the two turning tools at the same time, so that the turning efficiency can be accelerated.
Description
The technical field is as follows:
the invention relates to the technical field of machining lathes, in particular to a double-turning-tool machining lathe for a long and thin workpiece.
Background
The conventional turning method of the existing long and thin workpiece comprises the following steps: firstly, a slender workpiece part is clamped between a three-jaw chuck of a lathe spindle box and a tip of a tailstock, and then turning is carried out by using a cutter under the coordination of a center frame and a follow rest. Due to the characteristics of the structure of the slender workpiece part, the shearing force is large and the jumping is large in the cutting process, which brings great difficulty to the turning processing and is difficult to obtain good geometric shape precision.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a lathe for processing a long and thin workpiece by a double turning tool, which can reduce the shearing force and the jumping of the long and thin workpiece when the long and thin workpiece is cut by clamping the long and thin workpiece by two chucks and rotating the long and thin workpiece at the same rotating speed; the slender rod is turned by the two turning tools at the same time, so that the turning efficiency can be accelerated.
The scheme for solving the technical problems is as follows:
a lathe for processing a long and thin workpiece by double turning tools comprises a rack, two chuck assemblies which are symmetrically arranged up and down, two turning assemblies which are arranged left and right, and a lifting assembly, wherein the chuck assembly on the upper side is fixed at the upper end of the rack, the chuck assembly on the lower side is fixed on a lifting seat of the lifting assembly, and the lifting assembly is arranged at the lower end of the rack; the two turning assemblies are arranged between the two chuck assemblies;
the chuck assembly comprises a three-jaw chuck, the three-jaw chuck is hinged on a chuck base, a first motor for driving the three-jaw chuck to rotate is arranged on the chuck base, and a long and thin workpiece to be machined is clamped on the three-jaw chucks of the two chuck assemblies;
the turning assembly comprises a tool holder, a turning tool is fixed on the tool holder, and the turning tool faces the slender workpiece.
The connecting part of the three-jaw chuck is hinged in a step bearing hole of the chuck base through a first bearing and a second bearing which are arranged up and down, a worm wheel is clamped between the inner rings of the first bearing and the second bearing, and the worm wheel is coaxially and fixedly connected with the three-jaw chuck; the worm wheel is meshed with a worm, two ends of the worm are respectively hinged to the chuck base, a motor shaft of the first motor is fixedly connected with one end of the worm, and the first motor is fixed to the outer wall of the chuck base.
The connecting part penetrates through the extending end of the first bearing and is sleeved with a baffle ring, the baffle ring is fixed on the connecting part through a screw, and the baffle ring is pressed against the end face of the inner ring of the first bearing;
and a baffle is fixed on the big end hole end face of the step bearing hole of the chuck base and is pressed against the outer ring end face of the second bearing.
The lifting assembly further comprises a guide rod and a lead screw which are arranged in the vertical direction, the middle part of the guide rod is inserted and sleeved in the lifting seat, and two ends of the guide rod are fixed on the rack through support plates respectively; the middle part spiro union of lead screw is on the lift seat, and the both ends of lead screw articulate respectively on articulated piece that corresponds, and articulated piece is fixed in the frame, is fixed with the second motor on one of them articulated piece, the motor shaft of second motor and the one end fixed connection of lead screw.
The turning assembly further comprises a tool apron guide seat, the tool apron is connected to the tool apron guide seat in a sliding mode, a third motor is fixed on the tool apron guide seat, a motor shaft of the third motor is fixed with a first screw rod, and the first screw rod is in threaded connection with a screw hole of the tool apron;
the tool apron guide seat is inserted and sleeved on two vertically arranged slide rails, the slide rails are fixed on the rack, a second screw rod is arranged between the two slide rails, the lower end of the second screw rod is in threaded connection with the tool guide seat, the upper end of the second screw rod is fixedly connected with a motor shaft of a fourth motor, the fourth motor is fixed on a motor support plate, and the motor support plate is fixed on the rack.
The cutting amount of the left turning tool to the slender workpiece is larger than that of the right turning tool to the slender workpiece;
the turning tool on the left side is higher than the turning tool on the right side.
The clamping force of the three-jaw chuck on the upper side to the slender workpiece is smaller than that of the three-jaw chuck of the trolley to the slender workpiece.
The invention has the following outstanding effects: compared with the prior art, the long and thin workpiece is clamped by the two chucks and rotates at the same rotating speed, so that the shearing force and the jumping of the long and thin workpiece during cutting can be reduced; the slender rod is turned by the two turning tools at the same time, so that the turning efficiency can be accelerated.
Drawings
FIG. 1 is a schematic structural view of the present invention (broken lines are indicated by two-dot chain lines in the figure);
FIG. 2 is a schematic structural view of the chuck assembly of the present invention;
fig. 3 is a cross-sectional view of fig. 2 taken about a-a.
Detailed Description
In an embodiment, as shown in fig. 1 to 3, a lathe for processing a long and thin workpiece by using a double turning tool comprises a frame 1, two chuck assemblies 2 arranged up and down symmetrically, two turning assemblies 3 arranged left and right, and a lifting assembly 4, wherein the upper chuck assembly 2 is fixed at the upper end of the frame 1, the lower chuck assembly 2 is fixed at a lifting seat 41 of the lifting assembly 4, and the lifting assembly 4 is arranged at the lower end of the frame 1; two turning assemblies 3 are arranged between the two chuck assemblies 2;
the chuck assembly 2 comprises three-jaw chucks 21, the three-jaw chucks 21 are hinged on a chuck base 22, a first motor 27 for driving the three-jaw chucks 21 to rotate is arranged on the chuck base 22, and the slender workpiece 9 to be processed is clamped on the three-jaw chucks 21 of the two chuck assemblies 2;
the turning assembly 3 comprises a tool holder 31, on which tool holder 31 a turning tool 32 is fixed, which turning tool 32 faces the elongated workpiece 9.
Furthermore, the connecting part 211 of the three-jaw chuck 21 is hinged in the stepped bearing hole 221 of the chuck base 22 through a first bearing 23 and a second bearing 24 which are arranged up and down, a worm wheel 25 is clamped between the inner rings of the first bearing 23 and the second bearing 24, and the worm wheel 25 is coaxially and fixedly connected with the three-jaw chuck 21; the worm wheel 25 is engaged with a worm 26, two ends of the worm 26 are respectively hinged on the chuck base 22, a motor shaft of the first motor 27 is fixedly connected with one end of the worm 26, and the first motor 27 is fixed on the outer wall of the chuck base 22.
Furthermore, the connection part 211 penetrates through the protruding end of the first bearing 23 and is sleeved with a baffle ring 28, the baffle ring 28 is fixed on the connection part 211 through a screw, and the baffle ring 28 is pressed on the end surface of the inner ring of the first bearing 23;
the baffle 29 is fixed on the big end hole end face of the step bearing hole 221 of the chuck base 22, and the baffle 29 is pressed against the outer ring end face of the second bearing 24.
Furthermore, the lifting assembly 4 further comprises a guide rod 42 and a lead screw 43 which are arranged in the vertical direction, the middle part of the guide rod 42 is inserted and sleeved in the lifting seat 41, and two ends of the guide rod 42 are respectively fixed on the frame 1 through a support plate 44; the middle part of the screw 43 is screwed on the lifting seat 41, two ends of the screw 43 are respectively hinged on a corresponding hinged block 45, the hinged blocks 45 are fixed on the frame 1, one of the hinged blocks 45 is fixed with a second motor 46, and the motor shaft of the second motor 46 is fixedly connected with one end of the screw 43.
Furthermore, the turning assembly 3 further includes a tool apron guide seat 33, the tool apron 31 is slidably connected to the tool apron guide seat 33, a third motor 34 is fixed on the tool apron guide seat 33, a motor shaft of the third motor 34 is fixed with a first screw 35, and the first screw 35 is screwed in a screw hole 311 of the tool apron 31;
the tool apron guide seat 33 is inserted and sleeved on two vertically arranged slide rails 36, the slide rails 36 are fixed on the rack 1, a second screw 37 is arranged between the two slide rails 36, the lower end of the second screw 37 is screwed on the tool guide seat 33, the upper end of the second screw 37 is fixedly connected with a motor shaft of a fourth motor 38, the fourth motor 38 is fixed on a motor support plate 39, and the motor support plate 39 is fixed on the rack 1.
Furthermore, the cutting amount of the elongated workpiece 9 by the turning tool 32 on the left side is larger than the cutting amount of the elongated workpiece 9 by the turning tool 32 on the right side;
the left-hand bit 32 is higher than the right-hand bit 32.
Furthermore, the clamping force of the upper three-jaw chuck 21 on the elongated workpiece is smaller than the clamping force of the three-jaw chuck 21 of the trolley on the elongated workpiece.
The working principle is as follows: firstly, inserting a slender workpiece 9 from an upper three-jaw chuck 21, enabling a part of the lower end of the slender workpiece 9 to extend to the lower part of the upper three-jaw chuck 21, then clamping the slender rod by the upper three-jaw chuck 21, driving the upper three-jaw chuck 21 to rotate by an upper first motor through a worm turbine and the like, and driving the slender workpiece 9 to rotate by the upper three-jaw chuck 21;
secondly, the turning tool of one of the turning assemblies 3 cuts the lower end of the elongated workpiece;
thirdly, the second motor 46 drives the screw rod 43 to rotate, the screw rod 43 drives the lifting seat 41 to move upwards, the lifting seat 41 drives the three-jaw chuck on the lower side to move upwards through the chuck base on the lower side, and the three-jaw chuck on the lower side clamps the lower end of the slender workpiece 9 by the cut part;
fourthly, the two first motors of the two chuck assemblies rotate simultaneously, so that the two three-jaw chucks rotate simultaneously at the same speed and in the same direction, the two three-jaw chucks drive the elongated workpiece to rotate, the two turning tools of the two cutting assemblies 3 simultaneously turn the elongated workpiece, the turning tool 32 on the left side cuts the outermost layer of the elongated workpiece 9, and the turning tool on the right side cuts the part of the elongated workpiece cut by the turning tool on the left side again;
fifthly, the third motor 34 drives the first screw rod 35 to rotate, the first screw rod 35 drives the tool apron 31 to be close to or far away from the slender workpiece, and the tool apron 31 drives the turning tool 32 to move synchronously, so that two turning operations of the turning tool 32 on the slender workpiece are changed;
sixthly, the fourth motor 38 drives the second screw rod 37 to rotate, and the second screw rod 37 drives the tool guide seat 33 to move up or down along the slide rail 36, so that the position of the turning tool can be changed.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides a two lathe tool processing lathes of long and thin work piece, includes frame (1), chuck subassembly (2) that two longitudinal symmetry set up, turning subassembly (3) and lifting unit (4) that set up about two, its characterized in that: the upper side chuck assembly (2) is fixed at the upper end of the rack (1), the lower side chuck assembly (2) is fixed at the lifting seat (41) of the lifting assembly (4), and the lifting assembly (4) is arranged at the lower end of the rack (1); the two turning assemblies (3) are arranged between the two chuck assemblies (2);
the chuck assembly (2) comprises three-jaw chucks (21), the three-jaw chucks (21) are hinged to a chuck base (22), a first motor (27) for driving the three-jaw chucks (21) to rotate is arranged on the chuck base (22), and a long and thin workpiece (9) to be machined is clamped on the three-jaw chucks (21) of the two chuck assemblies (2);
the turning assembly (3) comprises a tool holder (31), a turning tool (32) is fixed on the tool holder (31), and the turning tool (32) faces the elongated workpiece (9).
2. The elongated workpiece double-lathe tool machining lathe according to claim 1, wherein: the connecting part (211) of the three-jaw chuck (21) is hinged in a step bearing hole (221) of the chuck base (22) through a first bearing (23) and a second bearing (24) which are arranged up and down, a worm wheel (25) is clamped between inner rings of the first bearing (23) and the second bearing (24), and the worm wheel (25) is coaxially and fixedly connected with the three-jaw chuck (21); the worm wheel (25) is meshed with a worm (26), two ends of the worm (26) are respectively hinged to the chuck base (22), a motor shaft of the first motor (27) is fixedly connected with one end of the worm (26), and the first motor (27) is fixed to the outer wall of the chuck base (22).
3. An elongated workpiece double-lathe tool machining lathe according to claim 2, wherein: the connecting part (211) penetrates through the extending end of the first bearing (23) and is sleeved with a baffle ring (28), the baffle ring (28) is fixed on the connecting part (211) through a screw, and the baffle ring (28) is pressed against the end face of the inner ring of the first bearing (23);
a baffle plate (29) is fixed on the end face of a large-end hole of a step bearing hole (221) of the chuck base (22), and the baffle plate (29) is pressed against the end face of an outer ring of the second bearing (24).
4. The elongated workpiece double-lathe tool machining lathe according to claim 1, wherein: the lifting assembly (4) further comprises a guide rod (42) and a lead screw (43) which are arranged in the vertical direction, the middle part of the guide rod (42) is inserted in the lifting seat (41), and two ends of the guide rod (42) are fixed on the rack (1) through support plates (44) respectively; the middle part spiro union of lead screw (43) is on lift seat (41), and the both ends of lead screw (43) articulate respectively on articulated piece (45) of correspondence, and articulated piece (45) are fixed on frame (1), are fixed with second motor (46) on one of them articulated piece (45), and the motor shaft of second motor (46) and the one end fixed connection of lead screw (43).
5. The elongated workpiece double-lathe tool machining lathe according to claim 1, wherein: the turning assembly (3) further comprises a tool apron guide seat (33), the tool apron (31) is connected to the tool apron guide seat (33) in a sliding mode, a third motor (34) is fixed on the tool apron guide seat (33), a first screw rod (35) is fixed on a motor shaft of the third motor (34), and the first screw rod (35) is in threaded connection with a screw hole (311) of the tool apron (31);
the cutter holder guide seat (33) is inserted and sleeved on two vertically arranged sliding rails (36), the sliding rails (36) are fixed on the rack (1), a second screw (37) is arranged in the middle of the two sliding rails (36), the lower end of the second screw (37) is screwed on the cutter guide seat (33), the upper end of the second screw (37) is fixedly connected with a motor shaft of a fourth motor (38), the fourth motor (38) is fixed on a motor support plate (39), and the motor support plate (39) is fixed on the rack (1).
6. The elongated workpiece double-lathe tool machining lathe according to claim 1, wherein: the cutting amount of the long and thin workpiece (9) by the turning tool (32) on the left side is larger than the cutting amount of the long and thin workpiece (9) by the turning tool (32) on the right side;
the left turning tool (32) is higher than the right turning tool (32).
7. The elongated workpiece double-lathe tool machining lathe according to claim 1, wherein: the clamping force of the three-jaw chuck (21) on the upper side to the slender workpiece is smaller than that of the three-jaw chuck (21) of the trolley to the slender workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010439149.5A CN111558732A (en) | 2020-05-22 | 2020-05-22 | Double-lathe tool machining lathe for slender workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010439149.5A CN111558732A (en) | 2020-05-22 | 2020-05-22 | Double-lathe tool machining lathe for slender workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111558732A true CN111558732A (en) | 2020-08-21 |
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ID=72073545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010439149.5A Withdrawn CN111558732A (en) | 2020-05-22 | 2020-05-22 | Double-lathe tool machining lathe for slender workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111558732A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372003A (en) * | 2020-11-05 | 2021-02-19 | 辽宁机电职业技术学院 | Numerical control machine tool |
| CN113319304A (en) * | 2021-06-07 | 2021-08-31 | 辽阳奥鹏汽车零部件有限公司 | Device for producing variable-diameter round bar material and processing method |
| CN117020318A (en) * | 2023-10-09 | 2023-11-10 | 泰州市华威动力机械有限公司 | Blank equipment is used in wrist-pin production convenient to adjust |
-
2020
- 2020-05-22 CN CN202010439149.5A patent/CN111558732A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372003A (en) * | 2020-11-05 | 2021-02-19 | 辽宁机电职业技术学院 | Numerical control machine tool |
| CN113319304A (en) * | 2021-06-07 | 2021-08-31 | 辽阳奥鹏汽车零部件有限公司 | Device for producing variable-diameter round bar material and processing method |
| CN117020318A (en) * | 2023-10-09 | 2023-11-10 | 泰州市华威动力机械有限公司 | Blank equipment is used in wrist-pin production convenient to adjust |
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Application publication date: 20200821 |
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| WW01 | Invention patent application withdrawn after publication |