CN111589976B - Forming device for disc type thin-wall nut - Google Patents
Forming device for disc type thin-wall nut Download PDFInfo
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- CN111589976B CN111589976B CN202010472756.1A CN202010472756A CN111589976B CN 111589976 B CN111589976 B CN 111589976B CN 202010472756 A CN202010472756 A CN 202010472756A CN 111589976 B CN111589976 B CN 111589976B
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- 238000010079 rubber tapping Methods 0.000 claims abstract description 70
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000004080 punching Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a forming device of a disc type thin-wall nut, which comprises a machine base, a lower die, an upper die and a drilling and tapping assembly, wherein the lower die comprises a lower die seat fixed on the machine base, the upper end surface of the lower die seat is used for placing a blank plate, the upper end surface of the lower die seat is provided with a drawing through hole extending up and down, the upper die comprises an upper die plate positioned above the lower die seat, a drawing convex die arranged on the upper drawing die plate and a blank holder positioned below the convex die, the drilling and tapping assembly comprises a tapping drill bit positioned below the lower die seat, the upper die plate is driven to move downwards, the blank holder and the drawing convex die move downwards, the blank holder presses the periphery of the blank plate, the drawing convex die penetrates through an inner hole of the blank holder and continuously and movably abuts against a region of the blank plate to be drawn to the drawing through hole to form a blank cylinder, the tapping drill through the bottom wall of the blank cylinder and tap a connecting thread on the inner wall of the blank cylinder, the processing of the disc type thin-wall nut is realized, the process period is shortened, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of nut manufacturing, in particular to a forming device for a disc type thin-wall nut.
Background
The disc type thin-wall nut is a typical connecting part, is widely applied to a plurality of industrial fields, and has huge market demand. At present, the forming method of the disc type thin-wall nut mainly combines sheet stamping with thread processing, namely: and (3) blanking a plate, deep drawing, punching and finally processing threads. Multiple stamping dies such as drawing dies, punching dies and the like are often used in the forming process, and multiple stamping devices are correspondingly used; furthermore, equipment for thread machining is required, and the semi-finished product often needs to be continuously transferred between each secondary die and each piece of equipment and positioned for multiple times. Therefore, in the prior art, the forming method of the disc type thin-wall nut needs a large number of dies and equipment, has long process period and low production efficiency.
Disclosure of Invention
The invention mainly aims to provide a forming device of a disc type thin-wall nut, aiming at reducing the number of moulds and equipment required by forming the disc type thin-wall nut, shortening the forming process period and improving the production efficiency.
In order to achieve the above object, the present invention provides a device for forming a disc-like thin-walled nut, comprising:
a machine base;
the lower die comprises a lower die seat fixedly arranged on the machine base, the upper end surface of the lower die seat is used for placing the blank plate, and a drawing through hole extending vertically is arranged on the upper end surface of the lower die seat in a penetrating manner;
the upper die comprises an upper die plate which is movably arranged on the base in the vertical direction and is positioned above the lower die base, a drawing male die which is arranged on the upper die plate and is arranged corresponding to the drawing through hole, and a blank holder which can be movably arranged on the lower end face of the upper die plate in the vertical direction, wherein the blank holder is positioned below the drawing male die; and the number of the first and second groups,
the drilling and tapping assembly comprises a tapping drill bit which is movably arranged on the base in the vertical direction and is positioned below the lower die base, the tapping drill bit is arranged corresponding to the drawing through hole, and the tapping drill bit is rotatably arranged on the base along an axis extending in the vertical direction;
the upper die plate moves downwards to drive the blank holder and the drawing male die to move downwards, the blank holder presses the periphery of the blank plate, the drawing male die moves downwards to penetrate through an inner hole of the blank holder and continuously and movably abuts against an area to be drawn of the blank plate to the drawing through hole to form a blank cylinder;
and the tapping drill bit rotates and upwards movably extends into the deep drawing through hole, is used for drilling through the bottom wall of the blank barrel and tapping in the inner wall of the blank barrel to form connecting threads.
Optionally, a guide assembly is arranged between the lower die holder and the upper die plate, the guide assembly includes a guide post extending in the up-down direction and a guide cylinder adapted to the guide post, one of the guide post and the guide cylinder is arranged on the upper die plate, and the other is arranged on the lower die holder; and/or the presence of a gas in the gas,
the tapping drill comprises a drill column, a drilling edge is formed at the end of the drill column and used for drilling, and a tapping edge is formed at the side of the drill column and used for tapping.
Optionally, a plurality of mounting holes are formed in the lower end face of the upper template in a vertically penetrating manner, the plurality of mounting holes are arranged around the drawing punch at intervals, each mounting hole comprises a first hole section with a larger pore diameter located above and a second hole section with a smaller pore diameter located below, so that an upward step face is formed between the first hole section and the second hole section, blank holding screws are inserted into the plurality of mounting holes, the heads of the blank holding screws abut against the step faces, threaded ends of the blank holding screws penetrate out of the corresponding second hole sections to be connected with the blank holding rings, a plurality of first elastic elements are arranged between the lower end face of the upper template and the blank holding rings, and the plurality of first elastic elements are sleeved on the corresponding blank holding screws correspondingly; and/or the presence of a gas in the gas,
the side wall surface of the deep drawing male die is provided with a first exhaust hole, the lower surface of the deep drawing male die is provided with a second exhaust hole, and the first exhaust hole is communicated with the second exhaust hole.
Optionally, the lower die holder comprises:
the lower template is fixedly arranged on the base, and a first through hole is formed in the upper end face of the lower template; and the number of the first and second groups,
the female die is arranged on the upper end face of the lower die plate, and a second through hole penetrates through the upper end face of the female die corresponding to the first through hole;
the upper end surface of the female die is used for placing a blank plate;
the first via hole and the second via hole jointly form the deep-drawing through hole.
Optionally, the drill-tapping assembly further comprises a drive assembly, the drive assembly comprising:
the linear driving mechanism is used for driving the tapping drill bit to move up and down; and the number of the first and second groups,
and the rotary driving mechanism is used for driving the tapping drill to rotate along an axis extending vertically.
Optionally, the lower die base comprises a lower die plate fixedly mounted on the base;
the rotation drive mechanism includes:
the base is positioned below the lower template;
the gear is provided with a rotating shaft which extends up and down, the rotating shaft is rotatably arranged on the upper end face of the base, and the upper end of the rotating shaft is fixedly connected with the tapping drill bit; and the number of the first and second groups,
the rack is movably arranged on the upper end surface of the base along the horizontal direction and is externally meshed with the gear;
and the power mechanism is used for driving the rack to move.
Optionally, one end of the rack is a driving end, and the driving end is arranged obliquely in the vertical direction to form a first driving inclined surface arranged towards the base;
the actuating mechanism comprises an actuating rod, the actuating rod extends up and down, the upper end of the actuating rod is fixed on the lower end surface of the upper template, the lower end of the actuating rod is hinged with an actuating block, the actuating block is provided with a second actuating inclined surface attached to the first actuating inclined surface, a baffle is convexly arranged below the actuating rod and abuts against the lower surface of the actuating block, and a reset elastic part is arranged between the actuating rod and the actuating block above the actuating block;
the base is provided with a dodging hole corresponding to the driving rod;
when the upper template moves downwards, the driving rod is driven to move downwards to penetrate through the avoidance hole, the driving block rotates upwards to avoid the first driving inclined plane, the driving rod continues to move downwards until the driving block is positioned below the rack, and the reset elastic piece resets the driving block to rotate downwards to be abutted against the upper end face of the baffle;
the upper template moves upwards to drive the driving rod to move upwards, and the second driving inclined plane is abutted to the first driving inclined plane so as to drive the rack to move.
Optionally, the rack has a reset end opposite the drive end;
the base up end is provided with second elastic element, second elastic element follows the rack extending direction sets up, second elastic element's one end is fixed in the base, second elastic element's the other end is fixed in the end that resets of rack.
Optionally, the linear driving mechanism comprises a feed nut mounted on the lower end surface of the base, and a threaded hole of the feed nut is arranged corresponding to the drawing through hole;
the outer side face of the lower end of the tapping drill bit is provided with external threads, and the lower end threads of the tapping drill bit are installed in the feeding nut.
Optionally, a connection structure is arranged between the inner hole wall surface of the gear and the outer side surface of the rotating shaft, the connection structure comprises a key groove extending vertically and a key matched with the key groove, one of the key groove and the key is arranged on the inner hole wall surface of the gear, and the other is arranged on the rotating shaft.
In the technical scheme provided by the invention, the disc thin-wall nut forming device comprises a base, a lower die, an upper die and a drilling and tapping assembly, wherein the lower die comprises a lower die seat fixedly arranged on the base, the upper end surface of the lower die seat is used for placing a blank plate, a drawing through hole extending in the vertical direction is arranged on the upper end surface of the lower die seat in a penetrating manner, the upper die comprises an upper die plate movably arranged on the base in the vertical direction and positioned above the lower die seat, a drawing punch arranged on the upper die plate and corresponding to the drawing through hole, and a blank holder movably arranged on the lower end surface of the upper die plate in the vertical direction, the blank holder is positioned below the drawing punch, the drilling and tapping assembly comprises a tapping drill movably arranged on the base in the vertical direction and positioned below the lower die seat, and the tapping drill is arranged corresponding to the drawing through hole, and is rotatably mounted to the base along an axis extending in the up-down direction, and by driving the upper die plate to move downward, so as to drive the blank holder and the drawing male die to move downwards, the blank holder holds the periphery of the blank plate, the drawing male die moves downwards and penetrates through an inner hole of the blank holder, and continuously and movably abutting against the area to be drawn of the blank plate to the drawing through hole to form a blank cylinder, driving the tapping drill to rotate and upwards and movably extend into the drawing through hole, drilling through the bottom wall of the blank cylinder by the tapping drill and tapping in the inner wall of the blank cylinder to form a connecting thread, the forming device of the disc type thin-wall nut can complete the drawing, punching and thread processing procedures of the disc type thin-wall nut, reduces the using quantity of dies and equipment, shortens the procedure period and improves the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a forming device for a disc-like thin-walled nut provided by the invention;
FIG. 2 is a schematic view of the blank plate pressed by the pressing ring in FIG. 1;
FIG. 3 is a schematic structural view of the forming device for the disc-like thin-walled nut in FIG. 1 after drawing;
FIG. 4 is a schematic structural diagram of the forming device for the disc-like thin-walled nut in FIG. 1 for completing drilling and tapping;
fig. 5 is a schematic structural diagram of the thin-wall nut processed by the device for forming the disc-like thin-wall nut in fig. 4 after drilling and tapping are completed.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1000 | |
431 | |
| 100 | Forming device for disc type thin- |
432 | |
| 1 | |
4321 | |
| 2 | Lower die | 433 | |
| 21 | Lower die |
434 | |
| 211 | |
4341 | |
| 212 | Concave die | 4342 | |
| 3 | Upper die | 4343 | Baffle |
| 31 | |
4344 | Reset |
| 311 | |
435 | Second |
| 32 | Deep drawing male die | 5 | Guide assembly |
| 321 | A |
51 | |
| 322 | |
52 | |
| 33 | |
6 | |
| 4 | Drilling and |
7 | First |
| 41 | |
8 | |
| 42 | |
9 | |
| 421 | Feeding nut | a | Deep-drawn through |
| 43 | Rotary driving mechanism | b | Avoiding hole |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The disc type thin-wall nut is mainly a connecting part formed by sequentially drawing, punching and thread processing a blanked plate material, is commonly used on automobiles, motorcycles, bicycles and the like, and has the annual market demand quantity of less than 10 hundred million pieces along with the increase of the number of the automobiles. In the prior art, different processing dies are needed for drawing, punching, thread processing and the like of the disc type thin-wall nut, and processing equipment needs to be replaced in the processing process, so that the number of the dies and the equipment needed for forming the disc type thin-wall nut is large, the working procedure period is long, and the production efficiency is low.
In view of this, the present invention provides a forming device for a disc-like thin-walled nut, wherein fig. 1 to 4 are schematic structural views of an embodiment of the forming device for a disc-like thin-walled nut provided by the present invention.
Referring to fig. 1, the device 100 for forming a disc-type thin-wall nut includes a base 1, a lower die 2, an upper die 3 and a drilling and tapping assembly 4, the lower die 2 includes a lower die base 21 fixedly mounted on the base 1, an upper end surface of the lower die base 21 is used for placing a blank board 1000, an upper end surface of the lower die base 21 is penetrated by a drawing through hole a extending in an up-down direction, the upper die 3 includes an upper die plate 31 movably mounted on the base 1 in the up-down direction and located above the lower die base 21, a drawing punch 32 disposed on the upper die plate 31 and corresponding to the drawing through hole a, and a blank holder 33 movably mounted to a lower end surface of the upper die plate 31 in the up-down direction, the blank holder 33 is located below the drawing punch 32, the drilling and tapping assembly 4 includes a tapping drill 41 movably mounted on the base 1 in the up-down direction and located below the lower die base 21, the tapping drill 41 is arranged corresponding to the drawing through hole a, and is rotatably mounted to the machine base 1 along an axis extending in the up-down direction, the upper die plate 31 is driven to move downwards to drive the blank holder 33 and the drawing punch 32 to move downwards, the blank holder 33 presses the periphery of the blank plate 1000 (as shown in fig. 2), the drawing punch 32 moves downwards to penetrate through the inner hole of the blank holder 33 and continuously and movably abuts against the region of the blank plate 1000 to be drawn to the drawing through hole a to form a blank barrel (as shown in fig. 3), the tapping drill 41 is driven to rotate and movably extend upwards to the drawing through hole a, the bottom wall of the blank barrel is drilled through by the tapping drill 41, and connecting threads are formed by tapping in the inner wall of the blank barrel (as shown in fig. 4) to obtain the thin-walled nut as shown in fig. 5, and the thin-walled nut forming device 100 can complete the thin-walled nut of the disc, The punching and thread machining processes reduce the use amount of dies and equipment, shorten the process period and improve the production efficiency.
In order to enable the upper die plate 31 to be movably mounted on the base 1 in the up-down direction, specifically, in the embodiment of the present application, a guiding assembly 5 is disposed between the lower die base 21 and the upper die plate 31, the guiding assembly 5 includes a guiding post 51 extending in the up-down direction and a guiding cylinder 52 adapted to the guiding post 51, one of the guiding post 51 and the guiding cylinder 52 is disposed on the upper die plate 31, and the other is disposed on the lower die base 21, and the upper die plate 31 is driven to enable the guiding post 51 to move along the guiding cylinder 52, so that the upper die plate 31 is movably mounted on the base 1 in the up-down direction.
The upper plate 31 may be driven to move by a variety of means, such as an air cylinder, a ball screw, etc., which are not limited in the present application.
Specifically, referring to fig. 2, the tapping drill 41 includes a drill post, a drilling edge is formed at an end of the drill post for drilling, and a tapping edge is formed at a side of the drill post for tapping, so that the drilling and tapping of the disc-type thin-walled nut can be realized by the tapping drill 41, thereby avoiding the replacement of equipment and shortening the process cycle.
In order to realize that the blank holder 33 holds the periphery of the blank plate 1000, a plurality of mounting holes 311 are formed in the lower end surface of the upper template 31 in a vertical direction, the plurality of mounting holes 311 are arranged around the drawing punch 32 at intervals, each of the plurality of mounting holes 311 includes a first hole section with a larger pore diameter located above and a second hole section with a smaller pore diameter located below, so as to form an upward step surface between the first hole section and the second hole section, the plurality of mounting holes 311 are respectively inserted with a blank holder screw 6, the head of each blank holder screw 6 abuts against the step surface, the threaded end of each blank holder screw 6 penetrates out from the corresponding second hole section to be connected with the blank holder 33, a plurality of first elastic elements 7 are arranged between the lower end surface of the upper template 31 and the blank holder 33, and the plurality of first elastic elements 7 are respectively sleeved on the corresponding blank holder screws 6, with such an arrangement, when the upper mold plate 31 moves downward, the blank holder 33 is driven to move downward to contact with the blank plate 1000, and when the upper mold plate 31 continues to move downward, the head of the blank holder screw 6 moves along the first hole section, and the first elastic element 7 is in a compressed state, so that the blank holder 33 compresses the periphery of the blank plate 1000, thereby preparing for a subsequent drawing process.
In order to avoid deformation of a blank barrel formed by drawing in the drawing process, a first vent hole 321 is formed in the side surface of the drawing male die 32, a second vent hole 322 is formed in the lower surface of the drawing male die 32, and the first vent hole 321 is communicated with the second vent hole 322.
Referring to fig. 1, the lower die holder 21 includes a lower die plate 211 and a female die 212, the lower die plate 211 is fixedly mounted on the base 1, a first via hole is formed in an upper end surface of the lower die plate 211, the female die 212 is disposed on the upper end surface of the lower die plate 211, a second via hole penetrates through the upper end surface of the female die 212 corresponding to the first via hole, the upper end surface of the female die 212 is used for placing a blank plate 1000, and the first via hole and the second via hole together form the drawing through hole a, so that the lower die holder 21 is convenient to maintain and replace.
In order to make the area to be deep-drawn of the blank plate 1000 correspond to the deep-drawing through hole a, referring to fig. 4, the upper end surface of the female die 212 is further provided with a positioning plate 8, and the positioning plate 8 is provided with a positioning groove for placing the blank plate 1000, so that the area to be deep-drawn of the blank plate 1000 corresponds to the deep-drawing through hole a, which facilitates accurate deep-drawing of the blank plate 1000.
In order to realize the rotation and upward movement of the tapping drill 41, referring to fig. 3, the drilling and tapping assembly 4 further comprises a driving assembly, the driving assembly comprises a linear driving mechanism 42 and a rotary driving mechanism 43, the tapping drill 41 is driven to move up and down by the linear driving mechanism 42, and the tapping drill 41 is driven to rotate along the axis extending up and down by the rotary driving mechanism 43, so that the tapping drill 41 moves up and down and rotates along the axis extending up and down.
Referring to fig. 1, the lower die holder 21 includes a lower die plate 211 fixedly installed on the machine base 1, the rotation driving mechanism 43 includes a base 431, a gear 432, a rack 433, and a power mechanism 434, the base 431 is located below the lower die plate 211, the gear 432 has a rotation shaft 4321 extending in an up-down direction, the rotation shaft 4321 is rotatably installed on the upper end surface of the base 431, the upper end of the rotation shaft 4321 is fixedly connected to the tapping drill 41, the rack 433 is movably installed on the upper end surface of the base 431 in a horizontal direction and externally engaged with the gear 432, the rack 433 is driven by the power mechanism 434 to move, so as to drive the gear 432 to rotate, and since the upper end of the rotation shaft 4321 is fixedly connected to the tapping drill 41, the tapping drill 41 is driven to rotate.
There are various ways to drive the rack 433 to move, for example, the rack 433 is driven to move by an air cylinder, a hydraulic cylinder, a ball screw, and the like, specifically, referring to fig. 1 to 2, in an embodiment of the present application, one end of the rack 433 is a driving end, the driving end is inclined in an up-down direction to form a first driving inclined plane disposed toward the base 431, the power mechanism 434 includes a driving rod 4341, the driving rod 4341 is extended in an up-down direction, an upper end of the driving rod 4341 is fixed to a lower end surface of the upper template 31, a driving block 4342 is hinged to a lower end of the driving rod 4341, the driving block 4342 is provided with a second driving inclined plane attached to the first driving inclined plane, the driving rod 4341 is disposed below the driving block 4342 and is convexly provided with a baffle 4343, the baffle 4343 abuts against a lower surface of the driving block 4342, the driving rod 4341 is located above the driving block 4342 and is provided with a resetting elastic member 4344 between the driving block 4342, the base 431 is provided with an avoidance hole b corresponding to the driving rod 4341, wherein the upper die plate 31 moves downward to drive the driving rod 4341 to move downward to pass through the avoidance hole b, the driving block 4342 rotates upward to avoid the first driving inclined plane, the driving rod 4341 moves downward continuously until the driving block 4342 is located below the rack 433, the resetting elastic member 4344 resets the driving block 4342 to rotate downward to abut against the upper end face of the baffle 4343 to complete the drawing of the blank plate 1000, the upper die plate 31 moves upward to drive the driving rod 4341 to move upward, the second driving inclined plane abuts against the first driving inclined plane to drive the rack 433 to move, the rack 433 drives the gear 432 to rotate, the gear 432 rotates the tapping bit 41.
Referring to fig. 2, the rack 433 has a reset end opposite to the driving end, a second elastic element 435 is disposed on an upper end surface of the base 431, the second elastic element 435 is disposed along an extending direction of the rack 433, one end of the second elastic element 435 is fixed to the base 431, and the other end of the second elastic element 435 is fixed to the reset end of the rack 433, so that when the driving rod 4341 continues to move upward until the second driving inclined surface is separated from the first driving inclined surface, the second reset elastic element resets the rack 433 to an initial position, and is ready for next machining of the disc-type thin-walled nut.
Referring to fig. 1 to 2, the linear driving mechanism 42 includes a feed nut 421 mounted on the lower end surface of the frame 1, a threaded hole of the feed nut 421 is formed to correspond to the drawing through hole a, an outer surface of the lower end of the tap drill 41 is provided with an external thread, the lower end of the tap drill 41 is threadedly mounted in the feed nut 421, and it is configured such that, when the rack 433 drives the gear 432 to rotate, the gear 432 rotates the tap drill 41 because the lower end of the tap drill 41 is threadedly mounted in the feed nut 421 and the feed nut 421 is fixed to the lower end surface of the frame 1, so that the tap drill 41 has a vertical stroke, when the tap drill 41 moves upward to drill through the bottom wall of the blank cylinder and tap a connecting thread in the inner wall of the blank cylinder, and when the connecting thread is formed, the tapping drill 41 is moved down to the initial position in preparation for the next disc-like thin-walled nut machining.
In order to realize that the tapping drill 41 rotates along with the gear 432 and can move up and down, referring to fig. 1, a connection structure 9 is arranged between an inner hole wall surface of the gear 432 and an outer side surface of the rotating shaft 4321, the connection structure 9 includes a key groove extending up and down and a key matched with the key groove, one of the key groove and the key is arranged on an inner hole wall surface of the gear 432, and the other is arranged on the rotating shaft 4321, so that the rotating shaft 4321 rotates along with the gear 432 and can slide up and down through the matching of the key groove and the key, and the tapping drill 41 rotates along with the gear 432 and moves up and down because the tapping drill 41 is fixedly connected with the upper end of the rotating shaft 4321.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A device for forming a disc-like thin-walled nut, comprising:
a machine base;
the lower die comprises a lower die seat fixedly arranged on the machine base, the upper end surface of the lower die seat is used for placing the blank plate, and a drawing through hole extending vertically is arranged on the upper end surface of the lower die seat in a penetrating manner;
the upper die comprises an upper die plate which is movably arranged on the base in the vertical direction and is positioned above the lower die base, a drawing male die which is arranged on the upper die plate and is arranged corresponding to the drawing through hole, and a blank holder which can be movably arranged on the lower end face of the upper die plate in the vertical direction, wherein the blank holder is positioned below the drawing male die; and the number of the first and second groups,
the drilling and tapping assembly comprises a tapping drill bit which is movably arranged on the base in the vertical direction and is positioned below the lower die base, the tapping drill bit is arranged corresponding to the drawing through hole, and the tapping drill bit is rotatably arranged on the base along an axis extending in the vertical direction;
the upper die plate moves downwards to drive the blank holder and the drawing male die to move downwards, the blank holder presses the periphery of the blank plate, the drawing male die moves downwards to penetrate through an inner hole of the blank holder and continuously and movably abuts against an area to be drawn of the blank plate to the drawing through hole to form a blank cylinder;
the tapping drill bit rotates and upwards movably extends into the deep drawing through hole, is used for drilling through the bottom wall of the blank barrel and tapping in the inner wall of the blank barrel to form connecting threads;
wherein the drill-tapping assembly further comprises a drive assembly, the drive assembly comprising:
the linear driving mechanism is used for driving the tapping drill bit to move up and down; and the number of the first and second groups,
the rotary driving mechanism is used for driving the tapping drill bit to rotate along an axis extending vertically;
the lower die base comprises a lower template fixedly arranged on the base;
the rotation drive mechanism includes:
the base is positioned below the lower template;
the gear is provided with a rotating shaft which extends up and down, the rotating shaft is rotatably arranged on the upper end face of the base, and the upper end of the rotating shaft is fixedly connected with the tapping drill bit; and the number of the first and second groups,
the rack is movably arranged on the upper end surface of the base along the horizontal direction and is externally meshed with the gear;
the power mechanism is used for driving the rack to move;
one end of the rack is a driving end, and the driving end is obliquely arranged along the vertical direction to form a first driving inclined plane arranged towards the base;
the actuating mechanism comprises an actuating rod, the actuating rod extends up and down, the upper end of the actuating rod is fixed on the lower end surface of the upper template, the lower end of the actuating rod is hinged with an actuating block, the actuating block is provided with a second actuating inclined surface attached to the first actuating inclined surface, a baffle is convexly arranged below the actuating rod and abuts against the lower surface of the actuating block, and a reset elastic part is arranged between the actuating rod and the actuating block above the actuating block;
the base is provided with a dodging hole corresponding to the driving rod;
when the upper template moves downwards, the driving rod is driven to move downwards to penetrate through the avoidance hole, the driving block rotates upwards to avoid the first driving inclined plane, the driving rod continues to move downwards until the driving block is positioned below the rack, and the reset elastic piece resets the driving block to rotate downwards to be abutted against the upper end face of the baffle;
the upper template moves upwards to drive the driving rod to move upwards, and the second driving inclined plane is abutted to the first driving inclined plane so as to drive the rack to move.
2. The forming device of the disc thin-wall nut as claimed in claim 1, wherein a guide assembly is arranged between the lower die holder and the upper die plate, the guide assembly comprises guide columns extending in the vertical direction and guide cylinders matched with the guide columns, one of the guide columns and the guide cylinders is arranged on the upper die plate, and the other guide column is arranged on the lower die holder; and/or the presence of a gas in the gas,
the tapping drill comprises a drill column, a drilling edge is formed at the end of the drill column and used for drilling, and a tapping edge is formed at the side of the drill column and used for tapping.
3. The forming device of a disc-like thin-walled nut according to claim 1, wherein a plurality of mounting holes are formed through a lower end surface of the upper die plate in an up-down direction, the plurality of mounting holes are arranged around the drawing punch at intervals, each of the plurality of mounting holes includes a first hole section having a larger hole diameter at an upper portion and a second hole section having a smaller hole diameter at a lower portion, so as to form an upward step surface between the first hole section and the second hole section, a blank holder screw is inserted in each of the plurality of mounting holes, the head of the blank holder screw is abutted against the step surface, the thread end of the blank holder screw penetrates out of the corresponding second hole section to be connected with the blank holder, a plurality of first elastic elements are arranged between the lower end face of the upper template and the blank holder, and are respectively sleeved on the corresponding blank holder screws in a corresponding mode; and/or the presence of a gas in the gas,
the side wall surface of the deep drawing male die is provided with a first exhaust hole, the lower surface of the deep drawing male die is provided with a second exhaust hole, and the first exhaust hole is communicated with the second exhaust hole.
4. The forming device for the disc-type thin-wall nut as claimed in claim 1, wherein the lower die holder comprises:
the lower template is fixedly arranged on the base, and a first through hole is formed in the upper end face of the lower template; and the number of the first and second groups,
the female die is arranged on the upper end face of the lower die plate, and a second through hole penetrates through the upper end face of the female die corresponding to the first through hole;
the upper end surface of the female die is used for placing a blank plate;
the first via hole and the second via hole jointly form the deep-drawing through hole.
5. A disc-like thin-walled nut forming apparatus as defined in claim 1 wherein said rack has a reset end opposite said drive end;
the base up end is provided with second elastic element, second elastic element follows the rack extending direction sets up, second elastic element's one end is fixed in the base, second elastic element's the other end is fixed in the end that resets of rack.
6. The forming device of the disc thin-wall nut as claimed in claim 1, wherein the linear driving mechanism comprises a feed nut mounted on the lower end face of the machine base, and a threaded hole of the feed nut is arranged corresponding to the drawing through hole;
the outer side face of the lower end of the tapping drill bit is provided with external threads, and the lower end threads of the tapping drill bit are installed in the feeding nut.
7. The apparatus for forming a disc-like thin-walled nut according to claim 6, wherein a connecting structure is provided between the inner wall surface of the gear and the outer wall surface of the rotating shaft, the connecting structure includes a key groove extending in the vertical direction and a key fitted to the key groove, one of the key groove and the key is provided on the inner wall surface of the gear, and the other is provided on the rotating shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010472756.1A CN111589976B (en) | 2020-05-27 | 2020-05-27 | Forming device for disc type thin-wall nut |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010472756.1A CN111589976B (en) | 2020-05-27 | 2020-05-27 | Forming device for disc type thin-wall nut |
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| CN111589976A CN111589976A (en) | 2020-08-28 |
| CN111589976B true CN111589976B (en) | 2021-11-02 |
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| CN113441957A (en) * | 2021-09-02 | 2021-09-28 | 徐州恒乾紧固件制造有限公司 | Manipulator is used in fastener production |
| CN114918320A (en) * | 2022-07-20 | 2022-08-19 | 南通峰脉电源科技有限公司 | Punch forming device for high-voltage power supply wiring terminal |
| CN116652605B (en) * | 2023-06-06 | 2024-05-10 | 江苏金利美工业科技有限公司 | Commercial display backboard stamping equipment and backboard stamped by same |
| CN117019989B (en) * | 2023-10-08 | 2023-12-15 | 江苏迅隆电源有限公司 | Aluminum alloy casting stamping equipment with alternating stress mode |
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| CN111589976A (en) | 2020-08-28 |
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Effective date of registration: 20231220 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 430023 No. 68, Xuefu Road, Changqing Garden, Dongxihu District, Wuhan, Hubei Patentee before: WUHAN POLYTECHNIC University |
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