CN113909425B - Processing method and device for butterfly nut - Google Patents
Processing method and device for butterfly nut Download PDFInfo
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- CN113909425B CN113909425B CN202111114635.0A CN202111114635A CN113909425B CN 113909425 B CN113909425 B CN 113909425B CN 202111114635 A CN202111114635 A CN 202111114635A CN 113909425 B CN113909425 B CN 113909425B
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- 238000003672 processing method Methods 0.000 title abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 76
- 238000005452 bending Methods 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000007723 die pressing method Methods 0.000 claims abstract description 8
- 238000010079 rubber tapping Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 93
- 230000007246 mechanism Effects 0.000 claims description 40
- 238000004080 punching Methods 0.000 claims description 27
- 238000003754 machining Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003756 stirring Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
Classifications
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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)
- Forging (AREA)
Abstract
The invention discloses a processing method and a processing device of a butterfly nut, comprising the following steps: feeding, namely feeding round bar stock, and cutting the round bar stock into cylinders with required lengths; upsetting the round ball, namely upsetting the round ball in the middle of the cylinder through die pressing; bending and pre-upsetting the holes, and pressing the blind holes at the center of the ball by using corresponding dies to finish upsetting the cylindrical holes on the ball; upsetting the hole, namely completing upsetting the blind hole to the through hole through die pressing; pressing the fins, and pressing the dies to flatten the cylinder to form double fins; tapping, namely tapping the inner wall of the through hole to form a screw hole to obtain a finished butterfly nut. The wing pressing process is constructed through a novel die and a novel process, the wing pressing process is arranged at the final position, the wing pressing quality is improved, and the cold heading manufacturing efficiency of the wing nut is improved.
Description
Technical Field
The application relates to the technical field of butterfly nut processing, in particular to a processing method and a processing device of a butterfly nut.
Background
A wing nut is one type of nut that is commonly used in relatively frequently disassembled parts. The wing nut in the prior art is usually manufactured by cold heading or stamping. For example, patent number CN 2016109271243 in chinese patent document 1/11 discloses a wing nut and its production process, punching device, and patent number CN2019110545178 in 2020 2/7 discloses a wing nut processing mold and a process for processing wing nut using the mold, and the wing nut production processes disclosed in the prior art are all sequentially monolith, 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 procedure of the butterfly nut forming, the fin is pressed firstly and then the punching is carried out, the bending die and the punching die correspond to the vertical direction of the material rod, the die closing direction of the fin pressing die is vertical to the bending die, the die material after fin pressing is inconvenient to change, and the fin pressing quality can be influenced during subsequent punching.
Disclosure of Invention
Based on the defects in the prior art, the invention provides a processing method and a processing device for a butterfly nut, which are constructed through new procedures, and the wing pressing procedure is arranged at the final position, so that the butterfly nut is convenient to reverse, 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 scheme.
The processing method of the butterfly nut is characterized by comprising the following steps of:
A. feeding, namely feeding round bar stock, and cutting the round bar stock into cylinders with required lengths;
B. upsetting the round ball, namely upsetting the round ball in the middle of the cylinder through die pressing;
C. bending and pre-upsetting the holes, and pressing the blind holes at the center of the ball by using corresponding dies to finish upsetting the cylindrical holes on the ball;
D. upsetting the hole, namely completing upsetting the blind hole to the through hole through die pressing;
E. pressing the fins, and pressing the dies to flatten the cylinder to form double fins;
F. tapping, namely tapping the inner wall of the through hole to form a screw hole to obtain a finished butterfly nut.
According to the method, the material reversing mechanism is used for finishing the reversing of the die rod between the ball pressing die and the bending die, so that the bending efficiency of the die rod is ensured, the 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 finished through deepening cold heading of the blind hole, the hole forming is convenient, the die rods at the two ends of the ball cannot be interfered and influenced in the hole forming process, and the wing pressing forming quality of the butterfly nut is ensured; because the hole forming and bending processes have transition in the application, the hole forming efficiency is improved, and the forming efficiency of the butterfly nut is further improved.
Preferably, in step B, upsetting the ball comprises two consecutive upsetting steps. The quality and upsetting efficiency of upsetting balls are improved.
The butterfly nut processing device 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 pushing device matched with the cold header modules are arranged on the machine base, and the butterfly nut processing device is characterized in that the auxiliary cold header modules comprise a blanking die, a material arranging die, a ball pressing die, a bending die, a punching die and a wing 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 arranging die, the ball pressing die, the bending die, the punching die and the fin pressing die are arranged in parallel. The blanking die, the material arranging die, the ball pressing die, the bending die, the punching die and the fin pressing die can be used for carrying out corresponding working procedures simultaneously, and the working procedures are pressed and upsetted in the same direction, so that the cold upsetting efficiency is improved; the material reversing mechanism is used for finishing the reversing of the die rod between the ball pressing die and the bending die, so that the bending efficiency of the die rod is ensured, the ball in the middle of the die rod can be synchronously pre-pressed during bending to form a blind hole, the nut hole can be formed by deepening cold heading of the blind hole, the hole forming is convenient, the die rods at the two ends of the ball cannot be interfered and influenced in the hole forming process, and the wing pressing forming quality of the butterfly nut is ensured; because the hole forming and bending processes have transition in the application, the hole forming efficiency is improved, and the forming efficiency of the butterfly nut is further improved.
Preferably, the material reversing mechanism is arranged on the material moving device, the material reversing mechanism comprises a sliding rod which is arranged on the material moving device in a sliding manner, one end of the sliding rod, facing the bending die, is provided with a material shifting rod, the material reversing mechanism further comprises a guide block fixed relative to the machine base, one end of the sliding rod, far away from the bending die, is matched with the guide block, and a reset spring is arranged between the sliding rod and the material moving device. The whole material moving device moves reciprocally, the guide block is arranged on the sliding rod and slides longitudinally when the sliding rod moves horizontally, the material stirring rod can rotate the mould rod with the ball around the ball when pushing out, so that the bar stock is converted from the vertical material reversing mechanism to the parallel material reversing mechanism, the subsequent bending of the upsetting ball and the sequential carrying out of cold upsetting hole forming are facilitated, and the cold upsetting efficiency is improved.
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 bending surface matched with the guide bearing. The guide bearing is matched with the folding surface, and friction force between the sliding rod and the folding surface is reduced through the guide bearing, so that the sliding rod can slide along with the folding surface conveniently.
Preferably, the plurality of pairs of cold heading modules comprise lower dies fixed on the base, a die cavity is arranged in the lower dies, the cold heading modules further comprise upper dies arranged along the axis of the lower dies in a reciprocating mode, cold heading faces for matching materials are arranged on the upper dies, and material returning ejector pins are arranged in the lower dies. And a plurality of auxiliary cold heading modules synchronously perform cold heading and material returning, so that 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 female die blank of a last station is arranged on the clamping die, a cylindrical hole with a bulge in the middle is formed in the clamping head corresponding to the space between the ball pressing die and the bending die, and straight grooves which are communicated front and back are respectively arranged at the upper end and the lower end of the cylindrical hole; the axis of the straight groove is parallel to the sliding direction of the sliding rod. The clamping head is used for completing the material moving of the die blank, the setting of the cylindrical hole corresponds to a ball on the die blank, the straight groove corresponds to a die rod on the die blank, and when the material reversing mechanism pushes the die blank, the die blank rotates around the ball center, so that the die blank reversing is realized, and the reversing is reliable and convenient.
Preferably, the clamping head between the punching die and the fin pressing die is a steering clamping head, the steering clamping head is rotationally arranged 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, two sides of the cylindrical blind hole are provided with coplanar straight grooves, and the bottoms of the cylindrical blind hole and the bottoms of the straight grooves extend to two sides of a plane where the vertical straight grooves are located respectively to form through holes.
The steering clamping head can be driven by a mechanical transmission mechanism, the steering clamping head is rotationally fixed on the clamping die, a matched gear rack pair can be arranged between the upper end of the steering clamping head and the machine base, ninety-degree rotation of the steering clamping head can be realized by the gear rack pair when the steering clamping head moves horizontally along with the clamping die relative to the machine base, so that a nut blank without wing pressing can be contained by a cylindrical blind hole and a straight groove of the rotating clamping head, feeding from the punching die is completed, and then when the rotating clamping head reaches a wing pressing die station, the through hole is opposite to the wing pressing die, so that wing pressing of the wing pressing die can be conveniently completed, and wing pressing efficiency is ensured.
Preferably, the material stirring rod is attached to the outer side of the clamping head corresponding to the space between the ball pressing die and the bending die. The stirring rod that the laminating set up has higher stirring stability.
Preferably, the material stirring rod is arranged vertically to the sliding rod. When the sliding rod slides along the axis, the stirring rod slides along the axis of the sliding rod to stir, so that the stability of stirring is improved.
The invention has the following beneficial effects: the wing pressing process is arranged at the final position through a new die and process construction, the butterfly nut is convenient to reverse, the wing pressing quality is improved, and the cold heading manufacturing efficiency of the butterfly nut is improved.
Drawings
FIG. 1 is a schematic diagram 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 view of the present invention.
Fig. 4 is a schematic view of the structure of the reciprocating swing mechanism in the present invention.
Fig. 5 is a schematic view of the structure of the steering grip head of the present invention.
In the figure: cutting device 2 of machine base 1 feeding device 3 cold heading module 4 material moving device 5 material pushing device 6 blanking die 7 material arranging die 8 ball pressing die 9 bending die 10 punching die 11 wing pressing die 12 lower die 13 upper die 14 material reversing mechanism 16 reciprocating swing mechanism 18 clamping die 19 hinged plate 20 rotary tooth form 21 helical gear 22 clamping head 23 cylinder hole 24 straight slot 25 sliding rod 26 guide sleeve 27 limiting ring 28 material shifting rod 29 guide block 30 reset spring 31 guide bearing 32 folded face 33 horizontal plane 34 inclined plane 35 blanking tray 36 turning clamping head 37 cylinder blind hole 38 straight slot 39 through hole 40.
Description of the embodiments
The invention is further illustrated in the following, in conjunction with the accompanying drawings and specific embodiments.
In the case of example 1,
the processing method of the butterfly nut is characterized by comprising the following steps of:
A. feeding, namely feeding round bar stock, and cutting the round bar stock into cylinders with required lengths;
B. upsetting the round ball, namely upsetting the round ball in the middle of the cylinder through die pressing;
C. bending and pre-upsetting the holes, and pressing the blind holes at the center of the ball by using corresponding dies to finish upsetting the cylindrical holes on the ball;
D. upsetting the hole, namely completing upsetting the blind hole to the through hole through die pressing;
E. pressing the fins, and pressing the dies to flatten the cylinder to form double fins;
F. tapping, namely tapping the inner wall of the through hole to form a screw hole to obtain a finished butterfly nut.
In step B, upsetting the ball comprises two consecutive upsetting steps. In step D, upsetting the hole comprises two continuous upsetting steps.
The molding of the die material is shown in fig. 1, the state of the die material on each station is sequentially shown from left to right in fig. 1, the cut cylinder is moved to a material arranging station through a material moving device, the material arranging station pre-upsets smaller balls, then the material arranging station enters into the next ball upsetting station, the balls are full, the horizontally arranged die material is converted into a vertical state through a material reversing mechanism, then the die material is moved to a bending station, upsetting of a blind hole in the center of the balls is completed while bending, then nut rings with full shapes are continuously upsetted twice, rotation of the die material is completed through turning of a clamping head on the material moving device, wing pressing is finally completed, and steps A to E are molded on the same cold upsetting machine and finally nut cutting is completed through movement to a machine tool. The blanking die, the material arranging 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 used for conducting all the working procedures corresponding to the fin pressing die at the same time, the heading is conducted in the same direction, and the cold heading efficiency is high.
In the case of example 2,
as shown in fig. 1 to 5, a butterfly nut processing device comprises a nut cold header body, wherein the nut cold header body comprises a machine base 1, a feeding device 2, a cutting device 3, a plurality of auxiliary cold header modules 4, a material moving device 5 and a pushing device 6 matched with the cold header modules 4 are arranged on the machine base 1, and it is noted that the nut cold header body adopted in the application is outsourcing equipment based on the mature prior art, so that the improvement content designed in the application is not developed in detail. The plurality of auxiliary cold heading modules 4 comprise a blanking die 7, a material arranging die 8, a ball pressing die 9, a bending die 10, a punching die 11 and a fin pressing die 12 which are sequentially arranged, and in order to ensure punching efficiency, two continuous groups of punching dies are arranged in the embodiment, so that punching quality is improved. 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 the reciprocating motion of lower mould 13 axis, is equipped with the cold heading face of cooperation material on the last mould 14, is equipped with the material returning thimble in the lower mould 13, and the material returning thimble cooperation spring resets, and blevile of push 6 includes the ejector pin that drives the material pushing 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 nut cold header is 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 driven directly by air cylinders, a plurality of air cylinders are needed to be arranged, the assembly is inconvenient, the interference is easy to occur, 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 base 1 form a parallelogram structure, and two ends of each hinged plate 20 are respectively hinged with a base and the clamping die 19. The outer end of the hinged plate 20 is provided with a rotation tooth profile 21, the rotation tooth profile 21 is matched with a bevel gear 22 which is arranged in a rotating way, 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 the blank of the last station spiral female die, the clamping head corresponding to the position between the cutting device and the blanking die is disc-shaped, and the axis of the disc-shaped clamping head is provided with a through round hole matched with a bar stock; the clamping head corresponding to the space between the blanking die and the monolithic die is also disc-shaped, and a through round hole matched with the bar stock is also arranged on the axis of the disc-shaped clamping head; the 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, and the upper end and the lower end of the cylindrical hole 24 are respectively provided with a straight slot 25 which is communicated 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 space between the bending die and the punching die also comprises a cylindrical hole and a straight groove, because the bending process and the punching process flatten the round ball into a circular ring, the diameter of the cylindrical hole on the clamping head corresponding to the space between the bending die and the punching die is larger than that of the cylindrical hole on the clamping head corresponding to the space between the ball pressing die and the bending die, the clamping head corresponding to the space between the punching die and the fin pressing die is a steering clamping head 37, the steering clamping head 37 is rotationally arranged 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 extend to two sides of the plane where the vertical straight grooves are respectively to form a through hole 40. The steering clamping head can be driven by a mechanical transmission mechanism, the steering clamping head is rotationally fixed on the clamping die, a matched gear rack pair can be arranged between the upper end of the steering clamping head and the machine base, ninety-degree rotation of the steering clamping head can be realized by the gear rack pair when the steering clamping head 37 moves horizontally along with the clamping die relative to the machine base, so that a nut blank without wing pressing can be contained by a cylindrical blind hole 38 and a straight groove of the rotating clamping head, feeding from the punching die 11 is completed, then when the rotating clamping head reaches a station of the wing pressing die 12, the through hole is opposite to the wing pressing die, wing pressing of the wing pressing die can be conveniently completed, and wing pressing efficiency is guaranteed. The material reversing mechanism 16 comprises a sliding rod 26 arranged on the material moving device 5 in a sliding manner, 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 of the sliding rod 26, facing the bending die 10, of the sliding rod, the material reversing mechanism 16 further comprises a guide block 30 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 sliding rod 26 far away from the bending die 10 is provided with a guide bearing 32, and the guide block 30 is provided with a folding surface 33 matched with the guide bearing 32. The fold surface 33 includes a horizontal surface 34 perpendicular to the axis of the slide bar 26, and one end of the horizontal surface 34 is an inclined surface 35 that engages with the guide bearing 32. The inclined surface 35 realizes that the sliding rod 26 is attached to the outer side of the clamping head 23 corresponding to the space between the ball pressing die 9 and the bending die 10 when the material is moved along with the material moving device 5. The material pulling rod 29 is arranged vertically to the sliding rod 26.
When the device is used, the linear bar enters the feeding device 2, the linear bar is cut off by the cutting device 3 at fixed distance after being in place, the material moving device 5 moves the cut bar into the cold heading die, cold heading of corresponding working procedures is completed in each cold heading die, each working station is completed synchronously, the material moving device 5 simultaneously completes the transportation of the die materials of each working station, and the cold heading efficiency is high; according to the method, the material reversing mechanism 16 is used for completing the reversing of the die rod between the ball pressing die 9 and the bending die 10, so that the bending efficiency of the die rod is ensured, the balls in the middle of the die rod can be synchronously pre-pressed during bending to form blind holes, the nut holes can be formed through deepening cold upsetting of the blind holes, the hole forming is convenient, the die rods at the two ends of the balls cannot be interfered and influenced in the hole forming process, and the wing pressing forming quality of the butterfly nut is ensured; because the hole forming and bending processes have transition in the application, the hole forming efficiency is improved, and the forming efficiency of the butterfly nut is further improved.
Claims (5)
1. The butterfly nut processing device 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 pushing device matched with the cold header modules are arranged on the machine base, and the butterfly nut processing device is characterized in that the auxiliary cold header modules comprise a blanking die, a material arranging die, a ball pressing die, a bending die, a punching die and a wing 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 arranging die, the ball pressing die, the bending die, the punching die and the fin pressing die are arranged in parallel;
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 female die blank of a last station is arranged on the clamping die, a cylindrical hole with a bulge in the middle is formed in the clamping head corresponding to the space between the ball pressing die and the bending die, and straight grooves which are communicated front and back are respectively arranged at the upper end and the lower end of the cylindrical hole; the axis of the straight groove is parallel to the sliding direction of the sliding rod;
the material reversing mechanism is arranged on the material moving device, the material reversing mechanism comprises a sliding rod which is arranged on the material moving device in a sliding manner, a guide sleeve is arranged on the clamping die, the sliding rod is in sliding fit with the guide sleeve, a limiting ring is fixedly arranged on the sliding rod, one end of the sliding rod, which faces the bending die, is provided with a material shifting rod which is arranged perpendicular to the sliding rod, the material reversing mechanism also comprises a guide block which is fixed relative to the machine base, one end of the sliding rod, which is far away from the bending die, is matched with the guide block, a folding surface which is matched with the guide bearing is arranged on the guide block, one end of the sliding rod, which is far away from the bending die, is matched with the folding surface, and a reset spring is arranged between the sliding rod and the material moving device; a guide bearing is arranged at one end of the sliding rod, which is far away from the bending die, and the periphery of the guide bearing is in fit with the bending surface;
a method of using a processing apparatus for a wing nut, comprising the steps of:
A. feeding, namely feeding round bar stock, and cutting the round bar stock into cylinders with required lengths;
B. upsetting the round ball, namely upsetting the round ball in the middle of the cylinder through die pressing;
C. bending and pre-upsetting the holes, and pressing the blind holes at the center of the ball by using corresponding dies to finish upsetting the cylindrical holes on the ball;
D. upsetting the hole, namely completing upsetting the blind hole to the through hole through die pressing;
E. pressing the fins, and pressing the dies to flatten the cylinder to form double fins;
F. tapping, namely tapping the inner wall of the through hole to form a screw hole to obtain a finished butterfly nut;
in step B, upsetting the ball includes two consecutive upsetting steps.
2. The processing device for the butterfly nut according to claim 1, wherein the plurality of auxiliary cold heading modules comprise lower dies fixed on the base, a die cavity is arranged in each lower die, the cold heading modules further comprise an upper die which is arranged along the axis of each lower die in a reciprocating mode, cold heading faces of matched materials are arranged on the upper die, and material returning ejector pins are arranged in each lower die.
3. The processing device of the butterfly nut according to claim 1, wherein the clamping head between the punching die and the wing pressing die is a steering clamping head, the steering clamping head is rotatably arranged around the axis of the steering clamping head, the steering clamping head is rectangular, 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 the bottom of the cylindrical blind hole and the bottom of the straight groove respectively extend to two sides of a plane where the vertical straight grooves are located to form through holes.
4. The processing device for the butterfly nut according to claim 1, wherein the material shifting rod is attached to the outer side of the clamping head corresponding to the space between the ball pressing die and the bending die.
5. The wing nut machining device according to claim 1, wherein the material shifting rod is arranged vertically 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113909425A CN113909425A (en) | 2022-01-11 |
| CN113909425B true CN113909425B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111114635.0A Active CN113909425B (en) | 2021-09-23 | 2021-09-23 | Processing method and device for butterfly nut |
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| CN (1) | CN113909425B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2502213A1 (en) * | 2002-11-27 | 2004-06-17 | Fabristeel Products Incorporated | Self-attaching female fastener elements and method of forming same |
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2021
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| CN113909425A (en) | 2022-01-11 |
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Address after: 519 Zhenzhong village, dangwan Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Aozhan Industry Co.,Ltd. Address before: 519 Zhenzhong village, dangwan Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: AOZHAN INDUSTRIAL CO.,LTD. |
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