CN117464101A - Nut internal thread machining device and process - Google Patents
Nut internal thread machining device and process Download PDFInfo
- Publication number
- CN117464101A CN117464101A CN202311605535.7A CN202311605535A CN117464101A CN 117464101 A CN117464101 A CN 117464101A CN 202311605535 A CN202311605535 A CN 202311605535A CN 117464101 A CN117464101 A CN 117464101A
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- nut
- driving
- milling cutter
- column
- chuck
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- 238000003754 machining Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims description 14
- 230000008569 process Effects 0.000 title claims description 12
- 238000003801 milling Methods 0.000 claims abstract description 93
- 230000008093 supporting effect Effects 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000007514 turning Methods 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 21
- 230000007704 transition Effects 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 7
- 239000000110 cooling liquid Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- 241000270295 Serpentes Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- 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
- B23G1/32—Thread cutting; Automatic machines specially designed therefor by milling
-
- 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
- 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
- B23Q11/10—Arrangements for cooling or lubricating tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a nut internal thread machining device, which comprises a machine body, wherein a chuck body and a first driving mechanism for driving the chuck body to rotate are rotatably arranged on the machine body; two support rails are horizontally arranged on the machine body in parallel, and movable tables are movably arranged on the two support rails; the second driving mechanism is used for driving the movable table to be close to or far away from the chuck body; the first supporting table is arranged on the movable table, a milling cutter column is horizontally arranged on the first supporting table in a rotating mode, and a milling cutter is arranged on the side portion, close to one end of the chuck body, of the milling cutter column; the third driving mechanism is used for driving the milling cutter column to rotate; the first cooling tube is located on the first support table, and an outlet of the first cooling tube is opposite to the milling cutter. The nut internal thread machining device provided by the invention can improve the production efficiency.
Description
Technical Field
The invention belongs to the technical field of nut production, and relates to a nut internal thread machining device and a nut internal thread machining process.
Background
Nuts are parts of nuts which are screwed with bolts or screws to play a role in fastening, and all components which are necessary for manufacturing machines are classified into carbon steel, stainless steel, nonferrous metals (such as copper) and the like according to different materials.
At present, the volume and the mass of nuts on some large-scale equipment in the market are correspondingly larger, such as nuts on shield machines (such as main driving screw rods), excavators or other large-scale equipment; in the nut processing process, firstly, a rudiment with a round hole in the middle is produced, and then the inner wall of the nut is lathed, so that the inner cavity is in a smooth state, and the coaxiality is ensured; then after the nut is fixed on the three-jaw chuck, a turning tool (an arm body for supporting the turning tool is simultaneously arranged) acts on the bottom of the inner cavity of the nut and moves forwards, and the three-jaw chuck drives the nut to rotate, so that the inner wall of the nut can be processed into a spiral line; when the turning tool completely passes through the nut, the turning tool is lifted to be not applied to the nut and then is withdrawn outside the nut, then the turning tool is lowered to a certain height, and turning is performed again along the spiral line processed in the previous time, wherein the depth of each turning tool is gradually deepened, and the inner cavity of the nut can be processed into the required internal thread after the turning tool is reciprocated for many times; however, in practice it has been found that this method results in a lower production efficiency due to the need for repeated access to the nut by the turning tool and the highly repeated adjustment (limited depth of a single car).
Disclosure of Invention
The invention aims to provide a nut internal thread machining device and a nut internal thread machining process, and aims to solve the problem of low production efficiency.
In order to solve the technical problems, the invention provides a nut internal thread processing device, which comprises:
the machine body is rotatably provided with a chuck body and a first driving mechanism for driving the chuck body to rotate;
the two support rails are horizontally arranged on the machine body in parallel, and movable tables are movably arranged on the two support rails;
the second driving mechanism is used for driving the movable table to be close to or far away from the chuck body;
the first supporting table is arranged on the movable table, a milling cutter column is horizontally arranged on the first supporting table in a rotating mode, and a milling cutter is arranged on the side portion, close to one end of the chuck body, of the milling cutter column;
the third driving mechanism is used for driving the milling cutter column to rotate;
and the first cooling pipe is positioned on the first supporting table, and the outlet of the first cooling pipe is opposite to the milling cutter.
The invention further provides that the second driving mechanism comprises a first motor and a first screw rod fixedly connected with an output shaft of the first motor, the first screw rod is rotatably connected with the machine body, and the first screw rod is in threaded fit with the movable table.
The invention further provides that the third driving mechanism comprises a second motor arranged on the first supporting table and a driving wheel arranged on an output shaft of the second motor, a driven wheel is arranged on the outer wall of the milling cutter column, and a driving belt is movably wound on the outer walls of the driving wheel and the driven wheel.
The milling cutter is characterized in that one end, far away from the milling cutter, of the milling cutter column is provided with a cover-shaped transition cover, an opening of the transition cover faces to the direction far away from the milling cutter, an air blowing channel is formed through the milling cutter column, one end of the air blowing channel is inclined and is opposite to the milling cutter, the other end of the air blowing channel is communicated with an inner cavity of the transition cover, and the middle part of the air blowing channel is positioned in the milling cutter column;
the transition cover is characterized by further comprising a gas transmission cover, an opening of the gas transmission cover faces the transition cover, the outer wall of the gas transmission cover is movably attached to the inner wall of the transition cover, and a gas transmission pipe is arranged on the outer side of the gas transmission cover in a communicating mode.
The invention is further provided with two chuck bodies and two first driving mechanisms, wherein the two chuck bodies are horizontally distributed;
the movable table is further provided with a second supporting table, a turning tool arm is arranged outside one side, close to the chuck body, of the second supporting table, a turning tool body is arranged on the side portion of the turning tool arm, the turning tool body and the milling cutter are respectively right opposite to the two chuck bodies, the second supporting table is provided with a second cooling pipe, and the outlet end of the second cooling pipe is right opposite to the turning tool body.
The invention is further arranged that the top of the movable table is provided with two movable grooves, and the bottoms of the first supporting table and the second supporting table are respectively movably positioned in the two movable grooves;
the movable table is horizontally provided with a third motor, the output shaft of the third motor is provided with two driving disc bodies at intervals, the movable table horizontally penetrates through the movable table and is rotatably connected with a first driving column and a second driving column, the first supporting table is in threaded fit with the first driving column, the second supporting table is in threaded fit with the second driving column, the first driving column is provided with a first driven disc body, the second driving column is provided with a second driven disc body, the first driven disc body and one driving disc body are provided with a first transmission piece in a winding manner on the outer wall of the driving disc body, the second driven disc body and the other driving disc body are provided with a second transmission piece in a winding manner on the outer wall of the driving disc body, and when the third motor works, the movement speed of the second supporting table is greater than that of the first supporting table, and the rotation speed of the chuck body just corresponding to the second supporting table is greater than that of the chuck body corresponding to the first supporting table.
The invention is further arranged that the chuck body comprises:
the rotating part and the connecting shell are arranged on the rotating part, a yielding hole is formed in the middle of the rotating part and the connecting shell in a penetrating way, the rotating part is rotationally connected to the machine body, and the first driving mechanism is used for driving the rotating part to rotate;
the clamping arms are movably arranged on the connecting shell;
the fourth driving mechanism is used for driving the three clamping arms to simultaneously approach or depart from the straight line where the axle center of the connecting shell is located;
the termination plate is movably arranged on the connecting shell and is positioned between two adjacent clamping arms;
the fifth driving mechanism is used for driving the termination plate to be close to or far away from a straight line where the axle center of the connecting shell is located;
the chuck body comprises a first state, a second state and a third state when the nut is fixed;
in a first state, the inner side of the nut is abutted against the stop plate, and the clamping arm and the nut are in a separated state;
in the second state, the inner side of the nut is abutted against the termination plate, and the three clamping arms are abutted against the side parts of the nut;
In a third state, the three clamping arms clamp the nut, and the termination plate is in a separated state from the nut.
The invention is further characterized in that a coaxial cylinder is arranged on one side, close to the rotating part, of the connecting shell, a rotating disc is rotatably arranged on the outer wall of the coaxial cylinder, the rotating disc is movably attached to the rotating part, a passive tooth body is arranged on the edge of one side, away from the rotating part, of the rotating disc, and a spiral driving spiral groove is formed in the middle of the rotating disc;
the fourth driving mechanism comprises a chuck column and an adjusting disc, the chuck column is rotatably connected to the side part of the connecting shell, the adjusting disc is fixedly arranged on the outer wall of the chuck column, the outer side of the adjusting disc is provided with a driving tooth body meshed with the driven tooth body, one end of the chuck column is positioned on the outer side of the connecting shell, and the other end of the chuck column is rotatably connected with the coaxial cylinder;
a vertical part is arranged on one side of the clamping arm, which is close to the rotating part, the vertical section formed by the vertical part and the clamping arm is T-shaped, a first matching groove matched with the vertical part and the clamping arm is arranged on the outer side of the connecting shell, a first strip-shaped through hole is formed through the first matching groove, a linkage rod is arranged on one side of the vertical part, which is away from the clamping arm, and the free ends of the linkage rod are movably positioned in the driving spiral groove;
The outer end of one side of the clamping arm, which is away from the vertical part, is provided with a supporting part, the inner side of the supporting part is provided with two supporting rods in parallel, the outer side of the clamping arm is movably provided with a movable part, the side part of the movable part is movably attached to the clamping arm, the end part of the movable part is provided with an insertion hole for the supporting rods to be inserted, the insertion hole is internally provided with an elastic piece, and the two ends of the elastic piece are respectively fixedly connected with the inner end of the insertion hole and the supporting rods;
in the first state, the movable part and the nut are in a separated state;
in the second state, the movable part is abutted against the nut, and the supporting part and the movable part are in a separated state;
in a third state, two ends of the movable part respectively prop against the nut and the supporting part, and the elastic piece is in a compressed state;
the termination plate is rectangular, a second matching groove matched with the termination plate is formed in the outer side of the connection shell, both width sides and thickness sides of the termination plate are movably attached to the inner wall of the second matching groove, and a strip-shaped second penetrating hole penetrates through the second matching groove;
The fifth driving mechanism comprises a rectangular linkage plate connected to the inner side of the termination plate, two sides of the linkage plate are movably attached to the inner wall of the second through hole, a linkage cylinder is arranged at the free end of the linkage plate, the linkage cylinder is in threaded fit with the chuck column, when the linkage rod is close to the straight line where the axis of the connection shell is located, the linkage plate is far away from the straight line where the axis of the connection shell is located, and when the linkage rod is far away from the straight line where the axis of the connection shell is located, the linkage plate is close to the straight line where the axis of the connection shell is located.
The invention further provides that three of the terminating plates, three of the terminating plates and three of the clamping arms are arranged in a cross-like manner.
The invention also provides a processing technology based on the nut internal thread processing device, which comprises the following steps:
s1, fixing and positioning a nut through a chuck body;
s2, the chuck body is driven to rotate by the first driving mechanism;
s3, the second driving mechanism drives the movable table to move along the supporting track, and the third driving mechanism drives the milling cutter column to rotate;
s4, the milling cutter column is self-conveyed and moves towards the inside of the chuck body, the nut is driven by the chuck body to rotate, and the first cooling pipe sprays cooling liquid to cool;
S5, stopping rotation of the chuck body after finishing internal thread machining of the nut, stopping rotation of the milling cutter column, taking down the nut on the chuck body, moving the movable table backwards, and separating the nut from the milling cutter column;
s6, the movable table returns to the initial position and waits for the next processing.
Compared with the prior art, the invention provides a nut internal thread machining device, when internal threads are machined on a nut, the nut is fixed and positioned through a chuck body; then the first driving mechanism drives the chuck body to rotate; the second driving mechanism drives the movable table to move along the supporting track, and the third driving mechanism drives the milling cutter column to rotate; the milling cutter column is self-conveyed and moves towards the inside of the chuck body, the nut is driven by the chuck body to rotate, and the first cooling pipe sprays cooling liquid to cool; after the internal thread of the nut is processed, the chuck body stops rotating, the milling cutter column stops rotating, the nut on the chuck body is taken down, the movable table moves backwards, and the nut is separated from the milling cutter column; the movable table returns to the initial position and waits for the next processing.
In the processing process, the milling cutter can be triangular according to the shape of the required internal thread, or can be trapezoidal or other forms, so that the shape of the processed thread is different; simultaneously, the nut rotates in the machining process, so that different positions of the inner wall are machined, and meanwhile, the first supporting table moves forwards, so that the internal threads washed by the milling cutter are also different positions, and the comprehensive effect is that the internal threads of the nut are completely machined; meanwhile, in the processing process, the rotation speed of the nut is slower, but the rotation speed of the milling cutter is fast, so that the internal thread of the nut is washed out little by little.
Meanwhile, in practice, it is found that the conventional device (i.e., the device mentioned in the background art) requires about 30-40 minutes for machining one internal thread of the nut after the internal wall is machined, but the structure of the present application is used for machining only one internal thread for about 4-5 minutes, thereby greatly improving the production efficiency. Moreover, the internal thread is not machined gradually, but is machined to a certain depth each time, and the nut and the milling cutter are moved in the machining process, so that the internal thread of the nut is uneven, and the produced shape is similar to the scale shape or the fine wave shape of snake skin; in the subsequent use process, the internal threads in the wavy form or the uneven form can better generate a meshing effect with the screw rod, relative sliding and the like are not easy to occur, and the connection stability is improved.
Drawings
FIG. 1 is a schematic view of an embodiment of an internal thread forming apparatus for nuts according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2;
FIG. 4 is an enlarged view of portion C of FIG. 2;
FIG. 5 is an enlarged view of portion D of FIG. 2;
FIG. 6 is a schematic view of an embodiment of a milling cutter post portion of a nut internal thread machining apparatus according to the present invention;
FIG. 7 is a schematic view of one embodiment of a chuck body in a nut internal thread machining apparatus according to the present invention;
FIG. 8 is an enlarged view of portion E of FIG. 7;
FIG. 9 is a cross-sectional view I of one embodiment of a chuck body in a nut internal thread machining apparatus of the present invention;
fig. 10 is an enlarged view of a portion F in fig. 9;
FIG. 11 is a second cross-sectional view of an embodiment of a chuck body in a nut internal thread machining apparatus according to the present invention;
fig. 12 is an enlarged view of a portion G in fig. 11;
fig. 13 is an enlarged view of the portion H in fig. 11;
FIG. 14 is a schematic diagram II of an embodiment of a chuck body in a nut internal thread machining apparatus according to the present invention;
FIG. 15 is an enlarged view of section I of FIG. 14;
FIG. 16 is an exploded view of one embodiment of a chuck body in a nut internal thread machining apparatus according to the present invention;
FIG. 17 is a schematic view of an embodiment of a rotatable disk in a nut internal thread machining apparatus according to the present invention;
FIG. 18 is a schematic view of one embodiment of a coupling housing in a nut internal thread machining apparatus according to the present invention;
FIG. 19 is a schematic diagram II of an embodiment of a coupling housing in a nut internal thread machining apparatus according to the present invention;
FIG. 20 is a schematic view of an embodiment of a clamping arm portion of a nut internal thread machining apparatus according to the present invention;
fig. 21 is a schematic view of an embodiment of a stop plate portion of a nut internal thread machining apparatus of the present invention.
Wherein, 1, the organism; 2. a support rail; 3. a movable table; 4. a first support table; 5. milling cutter columns; 6. milling cutter; 7. a first cooling tube; 8. a first motor; 9. a first screw rod; 10. a second motor; 11. a driven wheel; 12. a transition cover; 13. a blowing channel; 14. a gas transmission cover; 15. a gas pipe; 16. a second support table; 17. turning a cutter arm; 18. a lathe tool body; 19. a movable groove; 20. a third motor; 21. a driving disc body; 22. a first drive column; 23. a second drive column; 24. a first passive disk; 25. a second passive disk; 26. a first transmission member; 27. a second transmission member; 28. a rotating part; 29. a connection housing; 30. a relief hole; 31. a clamping arm; 32. a termination plate; 33. a coaxial cylinder; 34. a rotating disc; 35. a passive tooth body; 36. driving the spiral groove; 37. a chuck post; 38. an adjusting plate; 39. a driving tooth body; 40. a vertical portion; 41. a first mating groove; 42. a first through hole; 43. a linkage rod; 44. a support part; 45. a support rod; 46. a movable part; 47. an insertion hole; 48. an elastic member; 49. a second mating groove; 50. a second through hole; 51. a linkage plate; 52. and a linkage cylinder.
Detailed Description
The invention provides a nut internal thread processing device and a nut internal thread processing technology, which are further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. The same or similar reference numbers in the drawings refer to the same or similar parts.
A nut internal thread machining apparatus, as shown in fig. 1 to 21, comprising:
the machine body 1 is rotatably provided with a chuck body and a first driving mechanism for driving the chuck body to rotate;
the support rails 2 are horizontally and parallelly arranged on the machine body 1, two movable tables 3 are movably arranged on the two support rails 2, wherein the support rails 2 are preferably omega-shaped or T-shaped in cross section, and the bottoms of the movable tables 3 are buckled with the support rails 2;
a second driving mechanism for driving the movable table 3 to approach or depart from the chuck body;
the first supporting table 4 is arranged on the movable table 3, a milling cutter column 5 is horizontally and rotatably arranged on the first supporting table 4, and a milling cutter 6 is arranged on the side part of one end, close to the chuck body, of the milling cutter column 5;
the third driving mechanism is used for driving the milling cutter column 5 to rotate;
a first cooling tube 7, the first cooling tube 7 is located on the first supporting table 4, and the outlet of the first cooling tube 7 is opposite to the milling cutter 6.
The second driving mechanism comprises a first motor 8 and a first screw rod 9 fixedly connected with an output shaft of the first motor 8, the first screw rod 9 is rotationally connected with the machine body 1, and the first screw rod 9 is in threaded fit with the movable table 3.
The third driving mechanism comprises a second motor 10 arranged on the first supporting table 4 and a driving wheel arranged on an output shaft of the second motor 10, a driven wheel 11 is arranged on the outer wall of the milling cutter column 5, and a driving belt is movably wound on the outer wall of the driving wheel and the outer wall of the driven wheel 11.
One end of the milling cutter column 5, which is far away from the milling cutter 6, is provided with a cover-shaped transition cover 12, an opening of the transition cover 12 faces to a direction far away from the milling cutter 6, a blowing channel 13 is formed through the milling cutter column 5, one end of the blowing channel 13 is inclined and is opposite to the milling cutter 6, the other end of the blowing channel is communicated with an inner cavity of the transition cover 12, and the middle part of the blowing channel is positioned in the milling cutter column 5;
the transition cover 12 is arranged on the outer side of the gas transmission cover 14, and the gas transmission pipe 15 is arranged on the outer side of the gas transmission cover 14.
The chuck body and the first driving mechanism are both provided with two chuck bodies which are horizontally distributed;
the movable table 3 is further provided with a second supporting table 16, a turning tool arm 17 is arranged outside one side, close to the chuck body, of the second supporting table 16, a turning tool body 18 is arranged on the side portion of the turning tool arm 17, the turning tool body 18 and the milling cutter 6 are respectively right opposite to the two chuck bodies, a second cooling pipe is arranged on the second supporting table 16, and the outlet end of the second cooling pipe is right opposite to the turning tool body 18.
Two movable grooves 19 are formed in the top of the movable table 3, and the bottoms of the first support table 4 and the second support table 16 are respectively movably positioned in the two movable grooves 19;
the movable table 3 is horizontally provided with a third motor 20, the output shaft of the third motor 20 is provided with two driving disc bodies 21 at intervals, the driving disc bodies horizontally penetrate through the movable table 3 and are rotatably connected with the movable table 3, a first driving column 22 and a second driving column 23 are arranged on the outer wall of the movable table 3, the first supporting table 4 is in threaded fit with the first driving column 22, the second supporting table 16 is in threaded fit with the second driving column 23, the first driving column 22 is provided with a first driven disc body 24, the second driving column 23 is provided with a second driven disc body 25, a first transmission piece 26 is arranged on the outer wall of the first driven disc body 24 and the outer wall of the driving disc body 21 in a winding manner, a second transmission piece 27 is arranged on the outer wall of the second driven disc body 25 and the outer wall of the driving disc body 21 in a winding manner, when the third motor 20 works, the movement speed of the second supporting table 16 is greater than that of the first supporting table 4, and the movement speed of the second supporting table 16 is just opposite to the first chuck body 4 is greater than that of the first chuck body.
The chuck body includes:
the rotating part 28 and the connecting shell 29 arranged on the rotating part 28 are provided with a yielding hole 30 penetrating through the middle parts of the rotating part 28 and the connecting shell 29, the rotating part 28 is rotationally connected to the machine body 1, and the first driving mechanism is used for driving the rotating part 28 to rotate;
the clamping arms 31, the clamping arms 31 are movably arranged on the connecting shell 29;
a fourth driving mechanism for driving the three clamping arms 31 to simultaneously approach or separate from a straight line where the axes of the connection housings 29 are located;
a termination plate 32, wherein the termination plate 32 is movably arranged on the connection shell 29, and the termination plate 32 is positioned between two adjacent clamping arms 31;
a fifth driving mechanism for driving the end plate 32 to approach or depart from a straight line where the axis of the connection housing 29 is located;
the chuck body comprises a first state, a second state and a third state when the nut is fixed;
in the first state, the inner side of the nut is abutted against the stop plate 32, and the clamping arm 31 is in a separated state from the nut;
in the second state, the inner side of the nut abuts against the stop plate 32, and the three clamping arms 31 abut against the side portions of the nut;
In the third state, three of the clamping arms 31 clamp the nut, and the end plate 32 is in a separated state from the nut.
A coaxial cylinder 33 is arranged on one side of the connecting shell 29, which is close to the rotating part 28, a rotating disc 34 is rotatably arranged on the outer wall of the coaxial cylinder 33, the rotating disc 34 is movably attached to the rotating part 28, a driven tooth body 35 is arranged on one side edge of the rotating disc 34, which is away from the rotating part 28, and a spiral driving spiral groove 36 is formed in the middle;
the fourth driving mechanism comprises a chuck column 37 rotatably connected to the side part of the connection shell 29 and an adjusting disc 38 fixedly arranged on the outer wall of the chuck column 37, an active tooth 39 meshed with the passive tooth 35 is arranged on the outer side of the adjusting disc 38, one end of the chuck column 37 is positioned on the outer side of the connection shell 29, and the other end of the chuck column 37 is rotatably connected with the coaxial cylinder 33;
a vertical portion 40 is disposed on one side of the clamping arm 31 near the rotating portion 28, a longitudinal section formed by the vertical portion 40 and the clamping arm 31 is T-shaped, a first matching groove 41 matching with the vertical portion 40 and the clamping arm 31 is formed on the outer side of the connection housing 29, a first strip-shaped through hole 42 is formed through the first matching groove 41, a linkage rod 43 is disposed on one side of the vertical portion 40 away from the clamping arm 31, and free ends of the linkage rod 43 are all movably located in the driving spiral groove 36;
The outer end of one side of the clamping arm 31, which is away from the vertical part 40, is provided with a supporting part 44, the inner side of the supporting part 44 is provided with two supporting rods 45 in parallel, the outer side of the clamping arm 31 is movably provided with a movable part 46, the side part of the movable part 46 is movably attached to the clamping arm 31, the end part of the movable part 46 is provided with an insertion hole 47 for inserting the supporting rods 45, the insertion hole 47 is internally provided with an elastic piece 48, and two ends of the elastic piece 48 are respectively fixedly connected with the inner end of the insertion hole 47 and the supporting rods 45;
in the first state, the movable portion 46 is in a separated state from the nut;
in the second state, the movable portion 46 abuts against the nut, and the supporting portion 44 and the movable portion 46 are in a separated state;
in the third state, the two ends of the movable portion 46 respectively abut against the nut and the supporting portion 44, and the elastic member 48 is in a compressed state;
the termination plate 32 is rectangular, a second matching groove 49 matched with the termination plate 32 is formed on the outer side of the connection shell 29, both width sides and thickness sides of the termination plate 32 are movably attached to the inner wall of the second matching groove 49, and a strip-shaped second through hole 50 is formed through the second matching groove 49;
The fifth driving mechanism comprises a rectangular linkage plate 51 connected to the inner side of the termination plate 32, two sides of the linkage plate 51 are movably attached to the inner wall of the second through hole 50, a free end of the linkage plate 51 is provided with a linkage cylinder 52, the linkage cylinder 52 is in threaded fit with the chuck post 37, when the linkage rod 43 is close to a straight line where the axis of the connection shell 29 is located, the linkage plate 51 is far away from the straight line where the axis of the connection shell 29 is located, and when the linkage rod 43 is far away from the straight line where the axis of the connection shell 29 is located, the linkage plate 51 is close to the straight line where the axis of the connection shell 29 is located.
The stop plates 32 are provided with three, three of the stop plates 32 and three of the clamping arms 31 in a cross-like distribution.
The invention also provides a process for processing the nut internal thread processing device, which comprises the following steps:
s1, fixing and positioning a nut through a chuck body;
s2, the chuck body is driven to rotate by the first driving mechanism;
s3, the second driving mechanism drives the movable table 3 to move along the supporting track 2, and the third driving mechanism drives the milling cutter column 5 to rotate;
s4, the milling cutter column 5 is self-conveyed and moves towards the inside of the chuck body, the nut is driven by the chuck body to rotate, and the first cooling pipe 7 sprays cooling liquid to cool;
S5, stopping rotation of the chuck body after finishing internal thread machining of the nut, stopping rotation of the milling cutter column 5, taking down the nut on the chuck body, moving the movable table 3 backwards, and separating the nut from the milling cutter column 5;
s6, the movable table 3 returns to the initial position and waits for the next processing.
When the nut internal thread machining device is used for machining the internal thread of the nut, the nut is fixed and positioned through the chuck body; then the first driving mechanism drives the chuck body to rotate; the second driving mechanism drives the movable table 3 to move along the supporting track 2, and the third driving mechanism drives the milling cutter column 5 to rotate; the milling cutter column 5 is self-conveyed and moves towards the inside of the chuck body, the nut is driven by the chuck body to rotate, and the first cooling pipe 7 sprays cooling liquid to cool; after the internal thread of the nut is machined, the chuck body stops rotating, the milling cutter column 5 stops rotating, the nut on the chuck body is removed, the movable table 3 moves backwards, and the nut is separated from the milling cutter column 5; the movable table 3 returns to the initial position and waits for the next processing.
In the above processing process, the milling cutter 6 can be triangular according to the shape of the required internal thread, or can be trapezoidal or other forms, so that the shape of the processed thread is different; simultaneously, the nut rotates in the machining process, so that different positions of the inner wall are machined, and meanwhile, the first supporting table 4 moves forwards, so that the internal threads washed out by the milling cutter 6 are also different positions, and the comprehensive effect is that the internal threads of the nut are completely machined; meanwhile, in the processing process, the rotation speed of the nut is slower, but the rotation speed of the milling cutter 6 is fast, so that the internal thread of the nut is washed out little by little.
Meanwhile, in practice, it is found that the conventional device (i.e., the device mentioned in the background art) requires about 30-40 minutes for machining one internal thread of the nut after the internal wall is machined, but the structure of the present application is used for machining only one internal thread for about 4-5 minutes, thereby greatly improving the production efficiency. Moreover, the internal thread is not machined successively, but is machined to a certain depth each time, and the nut and the milling cutter 6 are moved in the machining process, so that the internal thread of the nut is uneven, and the produced shape is similar to the scale shape or the fine wave shape of snake skin; in the subsequent use process, the internal threads in the wavy form or the uneven form can better generate a meshing effect with the screw rod, relative sliding and the like are not easy to occur, and the connection stability is improved.
Wherein the present application includes two chuck bodies, the two chuck bodies have the same structure, and each chuck body includes a rotating part 28, a connecting shell 29, a coaxial cylinder 33, a rotating disc 34, etc., but the first driving mechanisms of the two chuck bodies are different, or the first driving mechanisms are the same but the driving speeds are different; preferably, the two first driving mechanisms are servo motors, gears are arranged on output shafts of the servo motors, then tooth bodies meshed with the gears are arranged on the outer walls of the rotating parts 28, and therefore the servo motors can drive the chuck bodies to rotate; or a worm is connected to the servo motor of the chuck body corresponding to the milling cutter 6, and a turbine is provided on the rotating part 28, so that the connecting part corresponding to the milling cutter 6 has a slower rotating speed.
The two chuck bodies are used for fixing the nut with unprocessed inner walls, so that the inner walls of the nut are required to be turned by the turning tool body 18 before the milling tool 6 is used for machining, and the inner walls of the nut are smoother; then, after taking down, the screw is arranged above a chuck body opposite to the milling cutter 6 for internal thread processing; so this equipment can carry out inner wall car processing and the internal thread processing of nut simultaneously in step, and machining efficiency is higher.
In addition, during actual machining, firstly, an unprocessed nut with an inner wall is fixed on a chuck body opposite to the turning tool body 18, and an unprocessed nut with an inner wall is fixed on the chuck body opposite to the milling cutter 6, and then, the two servo motors are started to enable the two chuck bodies to rotate respectively; then the first motor 8 drives the first screw rod 9 to rotate, and the first screw rod 9 drives the movable table 3 to move, so that the milling cutter 6 and the turning tool body 18 are respectively close to the nuts;
at this time, the first motor 8 stops moving, the second motor 10 drives the driving wheel to rotate, and the driving wheel drives the driven wheel 11 and the milling cutter column 5 to rotate through the driving belt (the driving wheel, the driven wheel 11 and the driving belt can be a chain and a chain wheel or a belt and a belt pulley); the third motor 20 drives the two driving discs 21 to rotate, and the driving discs 21 drive the first driven discs 24 and the first driving columns 22, and the second driven discs 25 and the second driving columns 23 to rotate through the first transmission piece 26 and the second transmission piece 27 respectively, so that the first supporting table 4 and the second supporting table 16 can be driven to move towards the nuts at the same time; thus, the machining and milling can be performed simultaneously; moreover, the diameter of the second passive disc 25 is smaller than that of the first passive disc 24, so that the rotation speed of the second transmission member 27 is higher, and the speed of driving the second support table 16 forward is also higher, so that the turning speed of the turning tool 18 is suitable for turning, and the milling speed is suitable for milling; when the turning tool body 18 completely passes through the nut, the chuck body corresponding to the turning tool body 18 stops rotating, and after the chuck body is loosened by a worker, the nut can be moved from the chuck body to the turning tool arm 17 until the nut can be removed more quickly later;
When the milling cutter 6 finishes machining the internal thread, the chuck body also stops rotating, and then a worker loosens the chuck body and moves the nut to the stationary milling cutter column 5; after that, the first motor 8 moves the movable table 3 backwards through the first screw rod 9, after the two nuts are at a certain distance from the chuck body, the nuts on the turning tool arm 17 are removed and then fixed above the chuck body of the milling cutter 6, and the nuts on the milling cutter column 5 are processed products, so that the efficiency is higher.
In the machining process, the milling cutter 6 and the cutter body 18 are respectively provided with a first cooling pipe 7 and a second cooling pipe for cooling and lubricating; meanwhile, the air delivery pipe 15 is externally connected with an air delivery pump, high-pressure air is blown into the air delivery cover 14, wherein the air delivery cover 14 is fixed and simultaneously rotates with the transition cover 12, but the air delivery cover 14 can input compressed air into the transition cover 12; after the compressed air in the transition cover 12 passes through the blowing channel 13, the milling cutter 6 can be blown, so that scrap iron and the like are blown, and the scrap iron is sent out backwards through the abdication hole 30; wherein the free end of the coaxial cylinder 33 is inserted into the hole in the middle of the rotating portion 28, so that not only can the scrap iron be better discharged, but also the scrap iron and the like can be better prevented from entering the inside of the belt chuck body.
The driving disc 21, the first driven disc 24, the second driven disc 25, the first transmission member 26 and the second transmission member 27 may be a combination of a sprocket and a chain, a combination of a belt and a pulley, or other conventional transmission-capable structures.
When the nut is fixed on the chuck body, the free ends of the three stop parts are positioned in the yielding holes 30 at first, so that when the inner side of the nut is moved to abut against the three stop plates 32, the nut is placed at a proper position; some nuts have smaller sizes and even smaller inner diameters than the relief holes 30, and if the nuts are placed directly, the situation that the front and back positions of the nuts (namely the distance between the nuts and the connecting shell 29) are not uniform is easily encountered, so that the difference of the processed nuts is larger; however, when the stop plate 32 is used, the nut can be abutted against the stop plate 32 every time, so that the distance between the nut and the connecting shell 29 is equal no matter the nut is a large nut or a small nut, and the consistency of processing quality and products can be ensured.
After the nuts are attached to the three stop plates 32 (at this time, the three movable portions 46 are all acted by the elastic members 48, so that a certain distance is provided between the movable portions 46 and the nuts, the nuts can be placed normally), a worker rotates the chuck post 37 by using tools such as a wrench, and the chuck post 37 drives the adjusting disk 38 to rotate; when the chuck column 37 rotates, the linkage cylinder 52 and the linkage plate 51 can drive the termination plate 32 to move towards a straight line (hereinafter referred to as a central position) far away from the axis of the connection shell 29, and meanwhile, the driving tooth body 39 on the outer side of the adjusting disk 38 drives the rotating disk 34 to rotate through the driven tooth body 35; while the rotating disc 34 rotates, the driving spiral groove 36 (i.e. archimedes wire) can drive the three linkage rods 43 to move, so that the three linkage rods 43 all move towards the direction close to the central position;
With the progress of the movement, the movable part 46 abuts against the outer wall of the nut at a certain moment, and the elastic piece 48 is compressed to a certain extent, at this moment, the three movable parts 46 abut against the three surfaces of the nut respectively, so that the nut can be supported and clamped to a certain extent; but the termination plate 32 still has a supporting effect on the nut at this time;
until the termination plate 32 is separated from the nut at a certain node, but at that node there is some distance between the support portion 44 and the movable portion 46, so the nut is not yet sufficiently clamped; the worker still rotates the chuck post 37 until the support portion 44 abuts against the movable portion 46 (the elastic member 48 is compressed to the maximum), indicating that the nut is completely fixed at this time;
the whole operation is thus that the worker rotates the chuck post 37 and, when observing that the support portion 44 abuts or abuts against the movable portion 46, indicates that the fixation of the nut is completed, and is simple and convenient. Wherein the support portion 44 can clamp the nut directly by the movable portion 46, so that the clamping stability of the nut can be ensured; secondly, the service life of the chuck body and the like is also ensured.
When one chuck post 37 is rotated, the rotating disk 34 can be driven to rotate (the rotating part 28 and the connecting shell 29 are fixedly connected and do not rotate), and the rotating disk 34 can simultaneously drive the other two adjusting disks 38 to rotate, so that three stop plates 32 can be driven to move at a time. The chuck post 37 is reversely rotated when the nut is removed, and the supporting part 44 is separated from the movable part 46 in the rotation process, but the movable part 46 can continuously clamp the nut due to the existence of the elastic force of the elastic piece 48; when the stop plate 32 abuts against the inner side of the nut, the chuck post 37 is continuously rotated, and after the compression of the elastic piece 48 is eliminated, the elastic piece 48 pulls the movable part 46 outwards, so that the movable part 46 is separated from the nut; at this time, the nut can be directly removed, and meanwhile, a certain distance is further provided between the three termination plates 32 and the middle position of the yielding hole 30, that is, the termination plates 32 still have a certain distance from the inner wall of the nut at the maximum stroke, so that the milling cutter column 5 and the turning tool body 18 can be conveniently removed from the yielding hole 30.
Wherein a T-shape is formed between the vertical portion 40 and the clamping arm 31, so that the clamping arm 31 can move along the length direction of the first matching groove 41; likewise, the termination plate 32 is rectangular, and the second mating groove 49 is rectangular, and both sides of the linkage plate 51 are fitted to the inner wall of the second through hole 50, so that the movable stability of the termination plate 32 can be ensured.
When the internal thread of the small nut is processed in the market at present, a steel plate is firstly attached to the outer side of the connecting shell 29, then the nut is abutted against the steel plate, then the three-jaw chuck is operated to clamp the nut, and finally the steel plate is pulled out. Although the method can solve the problem of uniform positions of the nuts, in practice, not only is the steel plate used for operation, but also friction exists between the steel plate and the nuts when the steel plate is pulled out, the operation is inconvenient, the nuts are easy to displace, and the like, so that the machining effect is poor. When the chuck body is used, the operation is simpler, the position of the nut can be ensured to be uniform, and the using effect is better.
It should be noted that, in the present description, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (10)
1. A nut internal thread machining device, comprising:
the machine body (1) is rotatably provided with a chuck body and a first driving mechanism for driving the chuck body to rotate;
the support rails (2) are horizontally arranged on the machine body (1) in parallel, and movable tables (3) are movably arranged on the two support rails (2);
the second driving mechanism is used for driving the movable table (3) to approach or depart from the chuck body;
the first supporting table (4), the first supporting table (4) is arranged on the movable table (3), a milling cutter column (5) is horizontally arranged on the first supporting table (4) in a rotating mode, and a milling cutter (6) is arranged on the side portion, close to one end of the chuck body, of the milling cutter column (5);
the third driving mechanism is used for driving the milling cutter column (5) to rotate;
-a first cooling tube (7), said first cooling tube (7) being located on said first support table (4), and the outlet of said first cooling tube (7) being opposite to said milling cutter (6).
2. The nut internal thread machining device according to claim 1, wherein the second driving mechanism comprises a first motor (8) and a first screw rod (9) fixedly connected with an output shaft of the first motor (8), the first screw rod (9) is rotatably connected with the machine body (1), and the first screw rod (9) is in threaded fit with the movable table (3).
3. The nut internal thread machining device according to claim 1, wherein the third driving mechanism comprises a second motor (10) arranged on the first supporting table (4) and a driving wheel arranged on an output shaft of the second motor (10), a driven wheel (11) is arranged on the outer wall of the milling cutter column (5), and a driving belt is movably wound on the outer walls of the driving wheel and the driven wheel (11).
4. A nut internal thread machining device according to claim 3, characterized in that one end of the milling cutter column (5) far away from the milling cutter (6) is provided with a cover-shaped transition cover (12), an opening of the transition cover (12) faces a direction far away from the milling cutter (6), an air blowing channel (13) is formed through the milling cutter column (5), one end of the air blowing channel (13) is inclined and is opposite to the milling cutter (6), the other end of the air blowing channel is communicated with an inner cavity of the transition cover (12), and the middle part of the air blowing channel is positioned in the milling cutter column (5);
The transition cover is characterized by further comprising a gas transmission cover (14), wherein an opening of the gas transmission cover (14) faces the transition cover (12), the outer wall of the gas transmission cover (14) is movably attached to the inner wall of the transition cover (12), and a gas transmission pipe (15) is arranged on the outer side of the gas transmission cover (14) in a communicating mode.
5. The nut internal thread machining device according to claim 1, wherein two chuck bodies and two first driving mechanisms are arranged, and the two chuck bodies are horizontally distributed;
the movable table (3) is further provided with a second supporting table (16), one side of the second supporting table (16) close to the chuck body is externally provided with a turning tool arm (17), the side part of the turning tool arm (17) is provided with a turning tool body (18), the turning tool body (18) and the milling cutter (6) are respectively right opposite to the two chuck bodies, the second supporting table (16) is provided with a second cooling pipe, and the outlet end of the second cooling pipe is right opposite to the turning tool body (18).
6. The nut internal thread machining device according to claim 5, wherein two movable grooves (19) are formed in the top of the movable table (3), and the bottoms of the first support table (4) and the second support table (16) are respectively movably located in the two movable grooves (19);
The chuck comprises a movable table (3), a third motor (20) is horizontally arranged on the movable table (3), two driving disc bodies (21) are arranged on an output shaft of the third motor (20) at intervals, the movable table (3) horizontally passes through the movable table and is rotatably connected with the movable table (3), a first driving column (22) and a second driving column (23) are arranged on the movable table, a first supporting table (4) is in threaded fit with the first driving column (22), a second supporting table (16) is in threaded fit with the second driving column (23), a first driven disc body (24) is arranged on the first driving column (22), a second driven disc body (25) is arranged on the outer wall of the first driven disc body (24) and is wound with a first transmission piece (26), a second transmission piece (27) is arranged on the outer wall of the second driven disc body (21) in a winding manner, and when the third supporting table (20) is opposite to the first supporting table (16) and the first supporting table (16) is in a large rotating speed.
7. A nut internal thread machining device as defined in any one of claims 1 to 6, wherein said chuck body comprises:
The rotating part (28) and a connecting shell (29) arranged on the rotating part (28), a yielding hole (30) is formed in the middle of the rotating part (28) and the connecting shell (29) in a penetrating way, the rotating part (28) is rotationally connected to the machine body (1), and the first driving mechanism is used for driving the rotating part (28) to rotate;
the clamping arms (31) are movably arranged on the connecting shell (29), and three clamping arms (31) are movably arranged on the connecting shell;
the fourth driving mechanism is used for driving the three clamping arms (31) to simultaneously approach or depart from the straight line where the axle center of the connecting shell (29) is located;
a termination plate (32), wherein the termination plate (32) is movably arranged on the connection shell (29), and the termination plate (32) is positioned between two adjacent clamping arms (31);
a fifth driving mechanism for driving the end plate (32) to approach or depart from a straight line where the axis of the connection housing (29) is located;
the chuck body comprises a first state, a second state and a third state when the nut is fixed;
in a first state, the inner side of the nut is abutted against the stop plate (32), and the clamping arm (31) is in a separated state from the nut;
in the second state, the inner side of the nut is abutted against the stop plate (32), and the three clamping arms (31) are abutted against the side parts of the nut;
In a third state, three of the clamping arms (31) clamp the nut, and the termination plate (32) is in a separated state from the nut.
8. The nut internal thread machining device according to claim 7, wherein a coaxial cylinder (33) is arranged on one side of the connecting shell (29) close to the rotating part (28), a rotating disc (34) is rotatably arranged on the outer wall of the coaxial cylinder (33), the rotating disc (34) is movably attached to the rotating part (28), a passive tooth body (35) is arranged on the edge of one side of the rotating disc (34) away from the rotating part (28), and a spiral driving spiral groove (36) is formed in the middle of the rotating disc;
the fourth driving mechanism comprises a chuck column (37) rotatably connected to the side part of the connecting shell (29) and an adjusting disc (38) fixedly arranged on the outer wall of the chuck column (37), an active tooth body (39) meshed with the passive tooth body (35) is arranged on the outer side of the adjusting disc (38), one end of the chuck column (37) is positioned on the outer side of the connecting shell (29), and the other end of the chuck column is rotatably connected with the coaxial cylinder (33);
the clamping arm (31) is provided with a vertical part (40) at one side close to the rotating part (28), the vertical section formed by the vertical part (40) and the clamping arm (31) is T-shaped, a first matching groove (41) matched with the vertical part (40) and the clamping arm (31) is formed in the outer side of the connecting shell (29), a first strip-shaped through hole (42) is formed through the first matching groove (41), a linkage rod (43) is arranged at one side, deviating from the clamping arm (31), of the vertical part (40), and the free ends of the linkage rod (43) are movably positioned in the driving spiral groove (36);
The outer end of one side, deviating from the vertical part (40), of the clamping arm (31) is provided with a supporting part (44), two supporting rods (45) are arranged in parallel on the inner side of the supporting part (44), a movable part (46) is movably arranged on the outer side of the clamping arm (31), the side part of the movable part (46) is movably attached to the clamping arm (31), an inserting hole (47) for inserting the supporting rods (45) is formed in the end part of the movable part (46), an elastic piece (48) is arranged in the inserting hole (47), and two ends of the elastic piece (48) are fixedly connected with the inner end of the inserting hole (47) and the supporting rods (45) respectively;
in a first state, the movable part (46) is in a separated state from the nut;
in a second state, the movable part (46) is abutted against the nut, and the supporting part (44) and the movable part (46) are in a separated state;
in a third state, two ends of the movable part (46) respectively abut against the nut and the supporting part (44), and the elastic piece (48) is in a compressed state;
the termination plate (32) is rectangular, a second matching groove (49) matched with the termination plate (32) is formed in the outer side of the connection shell (29), both width sides and thickness sides of the termination plate (32) are movably attached to the inner wall of the second matching groove (49), and a strip-shaped second through hole (50) is formed through the second matching groove (49);
The fifth driving mechanism comprises a rectangular linkage plate (51) connected to the inner side of the termination plate (32), two sides of the linkage plate (51) are movably attached to the inner wall of the second through hole (50), a linkage cylinder (52) is arranged at the free end of the linkage plate (51), the linkage cylinder (52) is in threaded fit with the chuck column (37), when the linkage rod (43) is close to a straight line where the axis of the connection shell (29) is located, the linkage plate (51) is far away from a straight line where the axis of the connection shell (29) is located, and when the linkage rod (43) is far away from a straight line where the axis of the connection shell (29) is located, the linkage plate (51) is close to a straight line where the axis of the connection shell (29) is located.
9. A nut internal thread machining device according to claim 8, characterized in that the stop plate (32) is provided with three, three of the stop plates (32) and three of the clamping arms (31) being distributed in a cross-like manner.
10. A process for machining based on a nut internal thread machining device according to any one of claims 1 to 9, characterized by comprising the steps of:
s1, fixing and positioning a nut through a chuck body;
s2, the chuck body is driven to rotate by the first driving mechanism;
s3, the second driving mechanism drives the movable table (3) to move along the supporting track (2), and the third driving mechanism drives the milling cutter column (5) to rotate;
S4, the milling cutter column (5) is self-conveyed and moves towards the inside of the chuck body, the nut is driven by the chuck body to rotate, and the first cooling pipe (7) sprays cooling liquid to cool;
s5, stopping rotation of the chuck body after internal thread machining of the nut is completed, stopping rotation of the milling cutter column (5), taking down the nut on the chuck body, and enabling the movable table (3) to move backwards and enabling the nut to be separated from the milling cutter column (5);
s6, the movable table (3) returns to the initial position and waits for the next processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311605535.7A CN117464101B (en) | 2023-11-27 | 2023-11-27 | Nut internal thread machining device and process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311605535.7A CN117464101B (en) | 2023-11-27 | 2023-11-27 | Nut internal thread machining device and process |
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| CN117464101A true CN117464101A (en) | 2024-01-30 |
| CN117464101B CN117464101B (en) | 2024-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190200341A (en) * | 1902-01-06 | 1902-12-11 | James Archdale | Improvements in Screw Thread Milling Machines. |
| CN205021156U (en) * | 2015-08-19 | 2016-02-10 | 唐山鑫业科技有限公司 | Connecting pipe nut internal thread digital control processing equipment alive |
| CN106392205A (en) * | 2016-11-24 | 2017-02-15 | 湖北登峰高强螺栓有限公司 | Cyclone milling machine for machining internal thread of large-size nut |
| CN116237551A (en) * | 2022-12-09 | 2023-06-09 | 江阴机械制造有限公司 | Tool for turning and milling composite equipment |
-
2023
- 2023-11-27 CN CN202311605535.7A patent/CN117464101B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190200341A (en) * | 1902-01-06 | 1902-12-11 | James Archdale | Improvements in Screw Thread Milling Machines. |
| CN205021156U (en) * | 2015-08-19 | 2016-02-10 | 唐山鑫业科技有限公司 | Connecting pipe nut internal thread digital control processing equipment alive |
| CN106392205A (en) * | 2016-11-24 | 2017-02-15 | 湖北登峰高强螺栓有限公司 | Cyclone milling machine for machining internal thread of large-size nut |
| CN116237551A (en) * | 2022-12-09 | 2023-06-09 | 江阴机械制造有限公司 | Tool for turning and milling composite equipment |
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| CN117464101B (en) | 2024-07-16 |
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