CN113909425A - Method and device for machining butterfly nut - Google Patents
Method and device for machining butterfly nut Download PDFInfo
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- CN113909425A CN113909425A CN202111114635.0A CN202111114635A CN113909425A CN 113909425 A CN113909425 A CN 113909425A CN 202111114635 A CN202111114635 A CN 202111114635A CN 113909425 A CN113909425 A CN 113909425A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 title claims description 7
- 238000003825 pressing Methods 0.000 claims abstract description 78
- 238000005452 bending Methods 0.000 claims abstract description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000010079 rubber tapping Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 100
- 230000007246 mechanism Effects 0.000 claims description 39
- 238000004080 punching Methods 0.000 claims description 25
- 238000007493 shaping process Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/64—Making machine elements nuts
- B21K1/70—Making machine elements nuts of special shape, e.g. self-locking nuts, wing nuts
- B21K1/708—Making machine elements nuts of special shape, e.g. self-locking nuts, wing nuts wing nuts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
- B21J13/12—Turning means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a method and a device for processing a butterfly nut, which comprises the following steps: feeding, feeding into a round bar stock, and cutting into a cylinder with a required length; upsetting the ball, namely pressing the ball in the middle of the cylinder through a die to complete upsetting out the ball in the middle of the cylinder; bending and pre-upsetting holes, completing upsetting of a blind hole in the center of the ball through pressing of corresponding dies, and simultaneously completing bending of an upper cylinder of the ball; upsetting the blind hole to the through hole by pressing the die; pressing the wings, namely pressing the die to flatten the cylinder to form the double wings; tapping, namely tapping the inner wall of the through hole to form a screw hole, so as to obtain a finished butterfly nut. The wing pressing process has the advantages that the wing pressing process is arranged at the last position through the new die and process construction, the reversing of the butterfly nut is convenient, the wing pressing quality is improved, and the cold heading manufacturing efficiency of the butterfly nut is improved.
Description
Technical Field
The application relates to the technical field of butterfly nut processing, in particular to a butterfly nut processing method and device.
Background
Wing nuts are one type of nut and are commonly used in relatively frequently disassembled parts. The wing nuts in the prior art are usually produced by cold heading or stamping. For example, the chinese patent publication CN 2016109271243 discloses an invention patent named "a wing nut and its production process, and a stamping device" on 11.1.2017, and the chinese patent publication CN2019110545178 discloses an invention patent named "a wing nut processing mold and a process for processing a wing nut using the mold" on 7.2020.2.20, and all the production processes of wing nuts disclosed in the above prior art sequentially include one-piece forming, ball pressing, bending, wing pressing, and punching.
The prior art has the defects that the punching is positioned in the last cold heading or punching process of butterfly nut forming, the stamping die is carried out after the wing pressing forming, the bending die and the punching die correspond to the vertical direction of a material rod, the die closing direction of the wing pressing die is vertical to the bending die, the die material after the wing pressing is inconvenient to reverse, and the wing pressing quality can be influenced during subsequent punching.
Disclosure of Invention
Based on the defects in the prior art, the invention provides the processing method and the device of the butterfly nut, the wing pressing process is arranged at the last position through the new process construction, the reversing of the butterfly nut is more convenient, the wing pressing quality is improved, and the cold heading manufacturing efficiency of the butterfly nut is improved.
In order to achieve the above object, the present invention adopts the following technical solutions.
A method for processing a butterfly nut is characterized by comprising the following steps:
A. feeding, feeding into a round bar stock, and cutting into a cylinder with a required length;
B. upsetting the ball, namely pressing the ball in the middle of the cylinder through a die to complete upsetting out the ball in the middle of the cylinder;
C. bending and pre-upsetting holes, completing upsetting of a blind hole in the center of the ball through pressing of corresponding dies, and simultaneously completing bending of an upper cylinder of the ball;
D. upsetting the blind hole to the through hole by pressing the die;
E. pressing the wings, namely pressing the die to flatten the cylinder to form the double wings;
F. tapping, namely tapping the inner wall of the through hole to form a screw hole, so as to obtain a finished butterfly nut.
According to the method, the reversing of the die rod between the ball pressing die and the bending die is completed through the material reversing mechanism, the bending efficiency of the die rod is guaranteed, the die rod can be reversed, the round ball in the middle of the die rod can be synchronously pre-pressed during bending to form a blind hole, the forming of the through hole can be completed through deepening cold heading of the blind hole, the hole forming is convenient, the interference and influence on the die rods at two ends of the round ball cannot be generated in the hole forming process, and the wing pressing forming quality of the butterfly nut is guaranteed; because there is the transition in pore-forming and the process of bending in this application, improved pore-forming efficiency, and then improved butterfly nut's shaping efficiency.
Preferably, in step B, upsetting the ball comprises two consecutive upsets. Improve the quality and the efficiency of upsetting the ball.
A machining device for a butterfly nut comprises a nut cold header main body, wherein the nut cold header main body comprises a base, a feeding device, a cutting device, a plurality of auxiliary cold header modules, a material moving device and a material pushing device matched with the cold header modules are arranged on the base, and the machining device is characterized in that the auxiliary cold header modules comprise a blanking die, a material shaping die, a ball pressing die, a bending die, a punching die and a fin pressing die which are sequentially arranged, and a material reversing mechanism is arranged between the ball pressing die and the bending die; the axes of the blanking die, the material shaping die, the ball pressing die, the bending die, the punching die and the fin pressing die are arranged in parallel. The processes corresponding to the blanking die, the material shaping die, the ball pressing die, the bending die, the punching die and the fin pressing die can be simultaneously carried out, and the cold heading efficiency is improved by pressing and heading in the same direction; the reversing of the die rod between the ball pressing die and the bending die is completed through the material reversing mechanism, the bending efficiency of the die rod is ensured, the die rod is reversed, the round ball in the middle of the die rod can be synchronously pre-pressed during bending to form a blind hole, the forming of a nut hole can be completed through deepening cold heading of the blind hole, the hole forming is convenient, the interference and influence on the die rods at two ends of the round ball cannot be generated in the hole forming process, and the wing pressing forming quality of the butterfly nut is ensured; because there is the transition in pore-forming and the process of bending in this application, improved pore-forming efficiency, and then improved butterfly nut's shaping efficiency.
Preferably, the material reversing mechanism is arranged on the material moving device and comprises a sliding rod arranged on the material moving device in a sliding mode, a material shifting rod is arranged at one end, facing the bending die, of the sliding rod, the material reversing mechanism further comprises a guide block fixed relative to the base, one end, far away from the bending die, of the sliding rod is matched with the guide block, and a reset spring is arranged between the sliding rod and the material moving device. The whole reciprocating motion that moves the material device, the setting of guide block when the slide bar horizontal migration, the slide bar takes place longitudinal sliding, and the kickoff pole can be with the mold rod of taking the ball around the spherical rotation of ball when releasing to accomplish the bar and follow the conversion of perpendicular material reversing mechanism to parallel material reversing mechanism, conveniently upset the follow-up bending of ball and going on in proper order of cold-heading pore-forming, improve cold-heading efficiency.
Preferably, one end of the sliding rod, which is far away from the bending die, is provided with a guide bearing, and the guide block is provided with a folding surface matched with the guide bearing. The guide bearing is matched with the folded surface, and the friction force of the sliding rod matched with the folded surface is reduced through the guide bearing, so that the sliding rod can conveniently slide along with the folded surface.
As preferred, a plurality of vice cold-heading modules are equipped with the die cavity including fixing the lower mould on the base in the lower mould, and the cold-heading module still includes the last mould that sets up along lower mould axis reciprocating motion, is equipped with the cold-heading face of cooperation material on going up the mould, is equipped with the material returned thimble in the lower mould. The plurality of auxiliary cold heading modules are used for synchronously cold heading and returning, and the production efficiency is high.
Preferably, the material moving device comprises a material moving power mechanism, a reciprocating swing mechanism connected with the material moving power mechanism and a clamping die connected with the reciprocating swing mechanism, a clamping head matched with the shape of a nut die blank at a previous station is arranged on the clamping die, a cylindrical hole with a middle bulge is arranged on the clamping head between the ball pressing die and the bending die correspondingly, and the upper end and the lower end of the cylindrical hole are respectively provided with a straight groove which is through from front to back; the axis of the straight groove is parallel to the sliding direction of the sliding rod. The clamping head is used for completing material moving of the mold blank, the cylindrical hole is arranged corresponding to the ball on the mold blank, the straight groove corresponds to the mold rod on the mold blank, when the material reversing mechanism pushes the mold blank, the mold blank rotates around the ball center of the ball, reversing of the mold blank is achieved, and reversing is reliable and convenient.
As preferred, the clamping head between punching die and the wing mould of pressing turns to the clamping head for turning to the clamping head, turns to the clamping head and rotates the setting around its axis, and the shape that turns to the clamping head is the cuboid, and one side of clamping head is equipped with the cylinder blind hole, and the both sides of cylinder blind hole are equipped with coplanar straight flute, and the bottom of cylinder blind hole and straight flute bottom extend into the through-hole to perpendicular straight flute place planar both sides direction respectively.
The clamping head can be driven by a mechanical transmission mechanism, the clamping head is rotated and fixed on the clamping die, a gear-rack pair matched with the clamping head can be arranged between the upper end of the clamping head and the base, when the clamping head rotates along with the horizontal motion of the clamping die relative to the base, the gear-rack pair can rotate by ninety degrees and can rotate to the clamping head, so that a nut blank without pressing fins can be accommodated by a cylindrical blind hole and a straight groove of the clamping head, the loading on the punching die is completed, the clamping head is rotated to reach a fin pressing die station, the through hole is opposite to the fin pressing die, the fin pressing of the fin pressing die can be conveniently completed, and the fin pressing efficiency is guaranteed.
Preferably, the material poking rod is attached to the outer side of the clamping head between the ball pressing die and the bending die. The material stirring rod which is attached to the material stirring rod has high material stirring stability.
Preferably, the material poking rod is arranged perpendicular to the sliding rod. When the sliding rod slides along the axis, the material poking rod slides along the axis of the sliding rod to poke, so that the material poking stability is improved.
The invention has the following beneficial effects: through new mould and process construction, will press the wing process setting in the last position, the switching-over of butterfly nut is comparatively convenient, improves and presses wing quality, improves butterfly nut's cold-heading manufacturing efficiency.
Drawings
FIG. 1 is a schematic view of the shape of a molding material corresponding to each step of the present invention.
Fig. 2 is a schematic diagram of the structural arrangement principle of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic structural diagram of the material reversing mechanism in the invention.
FIG. 5 is a schematic view of the steering clamp head of the present invention.
In the figure: a feeding device 2 of a machine base 1, a cutting device 3, a cold heading module 4, a material moving device 5, a material pushing device 6, a material finishing die 7, a ball pressing die 8, a bending die 10, a punching die 11, a fin pressing die 12, a lower die 13, a material reversing mechanism 16, a reciprocating swinging mechanism 18, a clamping die 19, a hinged plate 20, a rotating toothed 21 helical gear 22, a clamping head 23, a cylindrical hole 24, a straight groove 25, a sliding rod 26, a limiting ring 28, a material shifting rod 29, a guiding block 30, a return spring 31, a bearing 32, a folded surface 33, a horizontal surface 34, an inclined surface 35, a material discharging tray 36, a straight groove 39, a through hole 40 of a clamping head 37, a cylindrical blind hole 38 and a through hole 40.
Detailed Description
The invention is further illustrated with reference to the figures and the specific embodiments.
In the case of the example 1, the following examples are given,
a method for processing a butterfly nut is characterized by comprising the following steps:
A. feeding, feeding into a round bar stock, and cutting into a cylinder with a required length;
B. upsetting the ball, namely pressing the ball in the middle of the cylinder through a die to complete upsetting out the ball in the middle of the cylinder;
C. bending and pre-upsetting holes, completing upsetting of a blind hole in the center of the ball through pressing of corresponding dies, and simultaneously completing bending of an upper cylinder of the ball;
D. upsetting the blind hole to the through hole by pressing the die;
E. pressing the wings, namely pressing the die to flatten the cylinder to form the double wings;
F. tapping, namely tapping the inner wall of the through hole to form a screw hole, so as to obtain a finished butterfly nut.
And in the step B, upsetting the round ball comprises two times of continuous upsetting. In step D, the upsetting the hole comprises two consecutive upsets.
The die material is formed as shown in figure 1, the states of the die materials on all stations are sequentially from left to right in figure 1, the cut cylinders are moved to a material arranging station through a material moving device, smaller round balls are pre-upset in the material arranging station and then enter the next ball upsetting station, the round balls are full, the horizontally arranged die materials are converted into a vertical state through a material reversing mechanism and then moved to a bending station, upsetting of a central blind hole of the round ball is completed while bending is conducted, then nut rings with full shapes are formed through two continuous cold upsetting, the rotation of the die materials is completed through the turning of a clamping head on the material moving device, the pressing of fins is completed finally, the steps A to E are formed on the same cold header, and finally the die materials are moved to a machine tool to complete nut cutting. And C, because the processes corresponding to the blanking die, the material shaping die, the ball pressing die, the bending die, the punching die and the fin pressing die corresponding to the steps A to E can be simultaneously carried out, the cold heading efficiency is high.
In the case of the example 2, the following examples are given,
as shown in FIGS. 1 to 5, a processingequipment of butterfly nut, including the nut cold heading machine main part, the nut cold heading machine main part includes frame 1, is equipped with feed arrangement 2, cutting device 3 on the frame 1, a plurality of vice cold heading module 4, moves blevile of push 6 of material device 5 and cooperation cold heading module 4, it needs to notice that the nut cold heading machine main part that this application adopted is based on the equipment of purchasing outward of ripe prior art, consequently except that the improvement content that this application designed no longer expands redundantly. A plurality of vice cold-heading modules 4 are including the blanking mould 7, the mould of wholesale material 8, press ball mould 9, bending die 10, the mould of punching a hole 11 and the wing mould 12 that set gradually, and in order to guarantee the efficiency of punching a hole, the mould of punching a hole in the embodiment has set up continuous two sets ofly, improves the quality of punching a hole. The blanking die 7, the material arranging die 8, the ball pressing die 9, the bending die 10, the punching die 11 and the fin pressing die 12 are arranged at equal intervals. The lower end of the pressing die is provided with a blanking tray 36. Seven pairs of cold-heading modules 4 all include the lower mould 13 of fixing on the base, are equipped with the die cavity in the lower mould 13, and cold-heading module 4 still includes the last mould 14 that sets up along 13 axis reciprocating motion of lower mould, is equipped with the cold-heading face of cooperation material on going up mould 14, is equipped with the material returned thimble in the lower mould 13, and the material returned thimble cooperates the spring to reset, and blevile of push 6 is including the material pushing rod that the drive pushed away the material thimble. The action principle of the upper die 14, the lower die 13 and the material returning thimble is the same as that of a common nut cold header in the prior art, and the upper die, the lower die and the material returning thimble are not unfolded any more.
A material reversing mechanism 16 is arranged between the ball pressing die 9 and the bending die 10. The material reversing mechanism 16 is arranged on the material moving device 5, the material moving device 5 comprises a material moving power mechanism, a reciprocating swing mechanism 18 connected with the material moving power mechanism and a clamping die 19 connected with the reciprocating swing mechanism 18, the material moving power mechanism and the reciprocating swing mechanism 18 are directly driven by a plurality of cylinders at the simplest, the assembly is inconvenient and easy to interfere, the reciprocating swing mechanism 18 in the embodiment adopts two parallel opposite hinged plates 20, the two hinged plates 20, the clamping die 19 and the machine base 1 form a parallelogram structure, and two ends of the hinged plate 20 are respectively hinged with the base and the clamping die 19. The outer end of the hinged plate 20 is provided with a rotating tooth form 21, the rotating tooth form 21 is matched with a bevel gear 22 which is rotatably arranged, and the material moving power mechanism adopts a rotating motor matched with the bevel gear 22, so that when the rotating motor rotates, the clamping die 19 is always parallel to the plane where the axes of the two bevel gears 22 are located, and the stability and the reliability of the integral movement of the clamping die 19 are ensured. The clamping die 19 is provided with a clamping head 23 matched with the shape of a nut die blank at a previous station, the clamping head corresponding to the position between the cutting device and the blanking die is in a disc shape, and a through round hole matched with a bar is arranged on the axis of the disc-shaped clamping head; the clamping head corresponding to the position between the blanking die and the material arranging die is also in a disc shape, and a through round hole matched with the bar is also arranged on the axis of the disc-shaped clamping head; a clamping head 23 corresponding to the space between the ball pressing die 9 and the bending die 10 comprises a cylindrical hole 24 with a bulged middle part, and the upper end and the lower end of the cylindrical hole 24 are respectively provided with a straight groove 25 which is through from front to back; the axis of the straight groove 25 is parallel to the sliding direction of the sliding rod 26. The clamping head corresponding to the bending die and the punching die also comprises a cylindrical hole and a straight groove, and the round ball is flattened into a circular ring in the bending process and the punching process, so that the diameter of the cylindrical hole on the clamping head corresponding to the bending die and the punching die before is larger than that of the cylindrical hole on the clamping head corresponding to the pressing die and the bending die, the clamping head corresponding to the punching die and the pressing fin die is a steering clamping head 37, the steering clamping head 37 rotates around the axis of the steering clamping head, the steering clamping head is in a cuboid shape, one side of the clamping head is provided with a cylindrical blind hole 38, two sides of the cylindrical blind hole are provided with coplanar straight grooves 39, and the bottom of the cylindrical blind hole and the bottom of the straight groove respectively extend into through holes 40 towards the two sides of the plane where the vertical straight groove is located. Turn to the holding head and can pass through the drive of mechanical transmission mechanism, it fixes on the centre gripping mould to turn to the holding head rotation, it can set up the complex rack and pinion to turn to between holding head upper end and the frame, when turning to the relative frame horizontal motion of holding head 37 along with the centre gripping mould, the rack and pinion can realize turning to ninety degrees rotations of holding head, thereby the cylinder blind hole 38 and the straight flute that rotate the holding head can hold the nut blank that does not press the wing, accomplish from the material loading on the punching die 11, later when rotating the holding head and reacing the 12 stations of pressing the wing mould, the through-hole is relative with pressing the wing mould, thereby can conveniently accomplish the pressure wing of pressing the wing mould, guarantee to press wing efficiency. The material reversing mechanism 16 comprises a sliding rod 26 which is arranged on the material moving device 5 in a sliding mode, a guide sleeve 27 is arranged on the clamping die 19, the sliding rod 26 is in sliding fit with the guide sleeve 27, a limiting ring 28 is fixedly arranged on the sliding rod 26, a material shifting rod 29 is arranged at one end, facing the bending die 10, of the sliding rod 26, the material reversing mechanism 16 further comprises a guide block 30 which is fixed relative to the machine base 1, one end, far away from the bending die 10, of the sliding rod 26 is matched with the guide block 30, and a reset spring 31 is arranged between the sliding rod 26 and the material moving device 5. A return spring 31 is arranged between the stop collar 28 and the guide sleeve 27. The end of the slide bar 26 remote from the bending die 10 is provided with a guide bearing 32, and the guide block 30 is provided with a folding surface 33 which is matched with the guide bearing 32. The folding surface 33 includes a horizontal surface 34 perpendicular to the axis of the slide rod 26, and one end of the horizontal surface 34 is an inclined surface 35 which abuts against the guide bearing 32. The inclined surface 35 ensures that the sliding rod 26 is attached to the outer side of the clamping head 23 between the ball pressing die 9 and the bending die 10 when the material is moved along with the material moving device 5 by the material shifting rod 29. The kick-off bar 29 is arranged perpendicular to the slide bar 26.
When the device is used, linear bars enter the feeding device 2, are cut off by the cutting device 3 at a fixed distance after being in place, the cut bars are moved into the cold heading dies by the material moving device 5, cold heading of corresponding procedures is completed in each cold heading die, all stations are completed synchronously, the material moving device 5 completes simultaneous transportation of die materials of all stations, and the cold heading efficiency is high; according to the method, the reversing of the die rod between the ball pressing die 9 and the bending die 10 is completed through the material reversing mechanism 16, the bending efficiency of the die rod is guaranteed, the die rod can be synchronously pre-pressed with the round ball in the middle of the die rod during bending to form a blind hole, the forming of a nut hole can be completed through deepening cold heading of the blind hole, the hole forming is convenient, the interference and influence on the die rods at two ends of the round ball cannot be generated in the hole forming process, and the pressing wing forming quality of the butterfly nut is guaranteed; because there is the transition in pore-forming and the process of bending in this application, improved pore-forming efficiency, and then improved butterfly nut's shaping efficiency.
Claims (10)
1. A method for processing a butterfly nut is characterized by comprising the following steps:
A. feeding, feeding into a round bar stock, and cutting into a cylinder with a required length;
B. upsetting the ball, namely pressing the ball in the middle of the cylinder through a die to complete upsetting out the ball in the middle of the cylinder;
C. bending and pre-upsetting holes, completing upsetting of a blind hole in the center of the ball through pressing of corresponding dies, and simultaneously completing bending of an upper cylinder of the ball;
D. upsetting the blind hole to the through hole by pressing the die;
E. pressing the wings, namely pressing the die to flatten the cylinder to form the double wings;
F. tapping, namely tapping the inner wall of the through hole to form a screw hole, so as to obtain a finished butterfly nut.
2. The method as claimed in claim 1, wherein the upsetting the ball comprises two consecutive upsets in step B.
3. The machining device applied to the machining method of the butterfly nut in the claim 1 or 2 comprises a nut cold header main body, wherein the nut cold header main body comprises a machine base, a feeding device, a cutting device, a plurality of auxiliary cold header modules, a material moving device and a material pushing device matched with the cold header modules are arranged on the machine base, the machining device is characterized in that the auxiliary cold header modules comprise a blanking die, a material shaping die, a ball pressing die, a bending die, a punching die and a fin pressing die which are sequentially arranged, and a material reversing mechanism is arranged between the ball pressing die and the bending die; the axes of the blanking die, the material shaping die, the ball pressing die, the bending die, the punching die and the fin pressing die are arranged in parallel.
4. The device for processing the butterfly nut as claimed in claim 3, wherein the material reversing mechanism is disposed on the material moving device, the material reversing mechanism comprises a sliding rod slidably disposed on the material moving device, an end of the sliding rod facing the bending die is provided with a material ejecting rod disposed perpendicular to the sliding rod, the material reversing mechanism further comprises a guide block fixed relative to the machine base, the guide block is provided with a folded surface engaged with the guide bearing, an end of the sliding rod away from the bending die is engaged with the folded surface, and a return spring is disposed between the sliding rod and the material moving device.
5. The device as claimed in claim 4, wherein the end of the sliding rod away from the bending die is provided with a guide bearing, and the periphery of the guide bearing is attached to the folding surface.
6. The apparatus as claimed in claim 3, wherein the plurality of secondary cold heading modules each comprise a lower die fixed to the base, a die cavity is formed in the lower die, and an upper die reciprocally movable along an axis of the lower die, the upper die having a cold heading surface for engaging the material, and the lower die having a material discharge pin.
7. The device for processing the butterfly nut as claimed in claim 4, wherein the material moving device comprises a material moving power mechanism, a reciprocating swing mechanism connected with the material moving power mechanism, and a clamping die connected with the reciprocating swing mechanism, a clamping head matched with the shape of the nut mold blank at a previous station is arranged on the clamping die, a cylindrical hole with a middle bulge is arranged on the clamping head between the ball pressing die and the bending die, and the upper end and the lower end of the cylindrical hole are respectively provided with a straight groove which is through back and forth; the axis of the straight groove is parallel to the sliding direction of the sliding rod.
8. The device as claimed in claim 7, wherein the clamping head between the punching die and the wing pressing die is a turning clamping head, the turning clamping head is rotatably disposed around an axis thereof, the turning clamping head is shaped like a rectangular parallelepiped, one side of the clamping head is provided with a cylindrical blind hole, two sides of the cylindrical blind hole are provided with coplanar straight grooves, and a bottom of the cylindrical blind hole and a bottom of the straight groove respectively extend to two sides of a plane perpendicular to the straight grooves to form a through hole.
9. The apparatus as claimed in claim 7, wherein the kick-out bar is attached to an outer side of the clamping head between the ball pressing mold and the bending mold.
10. The apparatus as claimed in claim 4 or 9, wherein the material-pulling rod is vertically disposed to the sliding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114635.0A CN113909425B (en) | 2021-09-23 | 2021-09-23 | Processing method and device for butterfly nut |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114635.0A CN113909425B (en) | 2021-09-23 | 2021-09-23 | Processing method and device for butterfly nut |
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| CN113909425A true CN113909425A (en) | 2022-01-11 |
| CN113909425B CN113909425B (en) | 2024-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117900368A (en) * | 2024-03-18 | 2024-04-19 | 常州博帝汽车零部件有限公司 | Cold heading module for flange sleeve machining and cold heading process thereof |
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| CN105983640A (en) * | 2015-03-05 | 2016-10-05 | 冯鸣 | Multi-station screw forming device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117900368A (en) * | 2024-03-18 | 2024-04-19 | 常州博帝汽车零部件有限公司 | Cold heading module for flange sleeve machining and cold heading process thereof |
| CN117900368B (en) * | 2024-03-18 | 2024-05-31 | 常州博帝汽车零部件有限公司 | Cold heading module for flange sleeve machining and cold heading process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113909425B (en) | 2024-03-26 |
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