CN113464537A - Hexagonal head bolt with hole and production process thereof - Google Patents
Hexagonal head bolt with hole and production process thereof Download PDFInfo
- Publication number
- CN113464537A CN113464537A CN202110826304.3A CN202110826304A CN113464537A CN 113464537 A CN113464537 A CN 113464537A CN 202110826304 A CN202110826304 A CN 202110826304A CN 113464537 A CN113464537 A CN 113464537A
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- Prior art keywords
- head
- plunger
- hole
- hexagonal
- blank
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000010008 shearing Methods 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000005242 forging Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/028—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of an auxiliary bolt or threaded element whose action provokes the deformation of the main bolt or nut and thereby its blocking
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0069—Specially shaped nuts or heads of bolts or screws for rotations by a tool with holes to be engaged with corresponding pins on the tool or protruding pins to be engaged with corresponding holes on the tool
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a hexagonal-head perforated bolt and a production process thereof, wherein the hexagonal-head perforated bolt comprises a screw head, a head hole, a screw rod, screw rod threads, a nut and a plunger, the plunger comprises a plunger head, a plunger rod and a clamping unit, the bottom of the screw rod is provided with the plunger hole, the plunger hole is provided with internal threads, the plunger rod is provided with the plunger rod threads, the nut is provided with a nut clamping groove, the plunger rod is screwed with the plunger hole in a connection state, and the clamping unit is rotationally clamped in the nut clamping groove.
Description
Technical Field
The invention relates to the field of fastener processing and manufacturing, in particular to a hexagonal-head bolt with a hole in the head and a production process thereof.
Background
The hexagonal-head bolt with the hole at the head part is in a bolt pattern that the projection of the bolt head part along the threaded rod direction is in a regular hexagon, and two adjacent edges, opposite edges or two edges separated by one edge in the regular hexagon are provided with communicated blind holes. The anti-loosening connecting device has the advantages that when locking is needed, the large hexagon bolt with the bolt structure and the large hexagon nut with the bolt structure are used, the bolt structure is matched with the flat washer, the connecting pair can have high-level thread loosening prevention caused by over-tightening, a steel wire enters from the blind hole at one end of the connecting pair as an inlet, and the steel wire enters from the blind hole at the other end of the connecting pair as an outlet and is connected with other bolts with holes in the head in the same mode to form an array, and the anti-loosening effect is achieved. The screw head part of the existing hexagonal head perforated bolt is fixed through a steel wire, the movement amplitude is reduced, the head shearing force is dispersed, the shearing force of the screw head part still exists, the screw rod cannot be stabilized through increasing a reaming hole at the bottom of the screw rod in some use scenes, and the novel unstable factor in the use process of the hexagonal head perforated bolt is formed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the hexagonal-head-part holed bolt and the production process thereof, the threaded expanding hole is additionally arranged at the bottom of the screw rod, so that the reverse thread is formed, when the screw rod and the screw head are subjected to shearing force or other disturbance, the screw rod and the screw head are mutually counterforce, the counter lock is realized, and the stability of the hexagonal-head-part holed bolt is improved.
In order to solve the technical problem, the invention is solved by the following technical scheme: the hexagonal-head bolt with the hole in the head comprises a screw head, a head hole, a screw rod, screw threads, a nut and a plunger, wherein the plunger comprises a plunger head, a plunger rod and a clamping unit, the bottom of the screw rod is provided with the plunger hole, the plunger hole is provided with internal threads, the plunger rod is provided with the plunger rod threads, the nut is provided with a nut clamping groove, the plunger rod is connected with the plunger hole in a screwing mode in a connecting state, and the clamping unit is rotationally clamped in the nut clamping groove.
Preferably, the clamping unit comprises a plurality of switching protrusions, a rotating shaft and a rotating plate, the switching protrusions are fixedly connected to the circumference of the plunger head, a rotating groove and a shaft hole perpendicular to the rotating groove are formed in each switching protrusion, the rotating shaft is inserted into the shaft hole, and the rotating plate is sleeved on the rotating shaft.
Preferably, the plurality of rotating plates can rotate around the rotating shaft in a free state, and the free ends of the rotating plates are retracted and clamped in the nut clamping grooves in a bolt connection state.
Preferably, the bottom of the screw rod is provided with a plurality of adjusting sheets around the plunger hole, and an adjusting groove is formed between the adjusting sheets.
Preferably, the thread of the plunger rod is a left-hand thread on the outer side of the plunger rod, the plunger rod is cylindrical or truncated cone-shaped, and the diameter of the cross section of the plunger rod at the position far away from the plunger head is smaller by the truncated cone-shaped thread.
Preferably, the head hole is arranged on a hexagonal adjacent surface, a spacing surface or an opposite surface of the side surface of the screw head.
The invention also comprises a production process of the hexagonal head bolt with the hole, wherein the production process of the bolt body comprises the following steps:
the method comprises the following steps: the wire rod clamped in the shearing die is cut into required blanks through the unidirectional movement of the shearing mechanism,
step two: the rear die pushes the blank die to extrude the blank, the blank is preliminarily formed, the rear die pushes out the blank, and the third step is that: the blank enters a second die, the second die is used for extrusion, the blank is oblate, then the rear die is used for pushing out the blank,
step four: the blank enters a third forging die, a hexagonal head of the blank is preliminarily formed by cutting the hexagonal three-die kernel, then the blank is pushed into the third forging die by a rear die, the cut material is cut off from the hexagonal head, and the hexagonal head is formed,
step five: grinding the teeth of the screw part by taking the end surface of the hexagonal head as a reference,
step six: clamping the screw rod part in a clamp by taking the end surface of the hexagonal head as a reference, drilling a plunger hole,
step seven: tapping in the plunger hole by taking the end surface of the hexagon head as a reference,
step eight: using one end face of the hexagon head as a reference, milling the outer wall of the plug hole by using a milling cutter to form an adjusting groove,
step nine: and taking one end face of the hexagonal head as a reference, and drilling a head hole on the side wall of the hexagonal head.
A hexagonal head bolt with a hole and a production process thereof, wherein the production process of a plunger comprises the following steps:
the method comprises the following steps: stamping and extruding the wire rod to form a plunger rod, a plunger head and a plunger head side surface switching bulge,
step two: milling the rotary connection bulge to form a rotary groove by taking the end face of the plunger head as a reference,
step three: the switching bulge is taken as a reference, positioned in the clamp, and tapped out of the shaft hole by the switching bulge corresponding to the reference,
step four: and selecting a corresponding rotating shaft, and assembling the rotating plate to the switching lug through the rotating shaft.
In the technical scheme, compared with the prior art, the invention has the beneficial effects that: the plunger piston is screwed and matched with the screw thread of the bolt, so that the installed bolt is extruded to generate pressing force when being matched with an object, the plunger piston is connected with or rubbed with other parts, and the screw thread of the plunger rod enables the nut to be matched with the screw rod more tightly when the body vibrates; the rotating plates are clamped with the installed nuts to share the transverse shearing force generated by the assembly surface.
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 discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a bolt assembly structure of a hexagonal head bolt with a hole and a production process thereof.
FIG. 2 is a top view of a hexagonal head bolt with holes and its production process.
FIG. 3 is a schematic view of a hexagonal head bolt with holes and a bolt body structure produced by the process.
Fig. 4 is a schematic diagram of a hexagonal head bolt with a hole and a plunger piston structure produced by the hexagonal head bolt with the hole.
Fig. 5 is a front view of a structure of a hexagonal head bolt with a hole and a nut produced by the hexagonal head bolt with the hole.
In the figure: the screw comprises a screw body 1, a screw head 11, a head hole 111, a screw 12, a screw thread 121, an adjusting sheet 13, an adjusting groove 131, an internal thread 132, a nut 2, a nut clamping groove 21, a plunger 3, a plunger head 31, a switching bulge 311, a rotating shaft 312, a rotating plate 313, a plunger rod 32 and a plunger rod thread 33.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 described herein without the need for inventive work, are within the scope of the present invention.
The hexagonal head bolt with the hole comprises a bolt head 11, a head hole 111, a screw 12, a screw thread 121 and a nut 2, wherein the head hole 111 is arranged on a hexagonal adjacent surface, an interval surface or an opposite surface of the side surface of the bolt head 11. The plunger 3 comprises a plunger head 31, a plunger rod 32 and a clamping unit, 3 holes of the plunger are formed in the bottom of the screw 12, internal threads 132 are formed in the 3 holes of the plunger, the plunger rod 32 is provided with plunger rod threads 33, the nut 2 is provided with a nut clamping groove 21, the plunger rod 32 and the 3 holes of the plunger are connected in a screwing mode in a connecting state, and the clamping unit is rotationally clamped in the nut clamping groove 21.
As shown in fig. 1 to 5, the latch unit includes a switching protrusion 311, a rotating shaft 312, and a rotating plate 313, six sets of the switching protrusion 311 are uniformly fixed on the circumference of the plunger head 31, a rotating groove and a shaft hole perpendicular to the rotating groove and penetrating through the switching protrusion 311 are disposed in the switching protrusion 311, the rotating shaft 312 is inserted into the shaft hole, and the rotating plate 313 is sleeved on the rotating shaft 312. The six rotating plates 313 can rotate around the rotating shaft 312 in a free state, and in a bolt connection state, the free ends of the rotating plates 313 are retracted and clamped in the nut clamping grooves 21.
Six groups of adjusting sheets 13 are arranged at the bottom of the screw 12 around the hole of the plunger 3, and six adjusting grooves 131 with trapezoidal sections are formed among the six groups of adjusting sheets 13. The plunger rod thread 33 is a left-hand thread on the outer side of the plunger rod 32, the plunger rod 32 is cylindrical or truncated cone-shaped, and the diameter of the cross section of the plunger rod 32 at the position far away from the plunger head 31 is smaller by the truncated cone-shaped thread.
In the connection state, the adjusting sheet 13 is screwed in the plunger rod 32 and expands outwards in the radial direction to clamp the nut 2, the nut 2 is clamped in the nut clamping groove 21 through the rotating plate 313, and in the static state of the nut 2, the circumferential rotation pressure is dispersed, so that the connection state is more stable.
The invention also comprises a production process of the hexagonal head bolt with the hole, wherein the production process of the bolt body 1 comprises the following steps:
the method comprises the following steps: cutting the wire rod clamped in the shearing die into required blanks through unidirectional movement of the shearing mechanism, and performing step two: the rear die pushes the blank die to extrude the blank, the blank is preliminarily formed, the rear die pushes out the blank, and the third step is that: and (3) the blank enters a second die, the second die is used for extruding, the blank is oblate, the rear die is used for pushing out the blank, and the fourth step is that: the blank gets into the third and beats the mould, cuts through three die benevolence benevolences of hexagonal, and the blank hexagon head is tentatively formed, later, back die pushes the blank into the third and beats the mould, and the blank cuts off from the hexagon head, and the hexagon head forms, step five: taking the end face of the hexagonal head as a reference, grinding the teeth of the screw 12, and performing the sixth step: and taking the end face of the hexagon head as a reference, clamping the screw 12 part in the clamp, and drilling the hole of the plunger 3, wherein the seventh step is as follows: tapping in the 3 holes of the plunger by taking the end face of the hexagonal head as a reference, and performing the eighth step: and (3) milling the outer wall of the hole of the plunger 3 by using a milling cutter by taking one end face of the hexagonal head as a reference to form an adjusting groove 131, and performing the ninth step: the hexagonal head side wall is drilled with a head hole 111 with one end face of the hexagonal head as a reference.
A hexagonal head bolt with a hole and a production process thereof, wherein the production process of a plunger 3 comprises the following steps:
the method comprises the following steps: and (2) carrying out die extrusion forming on the wire to form the plunger rod 32, the plunger head 31 and the side face switching bulge 311 of the plunger head 31, and carrying out the second step: milling the connecting bulge 311 to form a rotating groove by taking the end surface of the plunger head 31 as a reference, and performing the third step: taking the switching bulge 311 as a reference, positioning the switching bulge 311 in the fixture, tapping the shaft hole of the switching bulge 311 corresponding to the reference, and performing the fourth step: a corresponding rotation shaft 312 is selected, and the rotation plate 313 is fitted to the coupling protrusion 311 through the rotation shaft 312.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a hexagonal head eyebolt, includes spiral shell head (11), head hole (111), screw rod (12), screw rod screw thread (121), nut (2), its characterized in that: still include plunger (3), plunger (3) include plunger head (31), plunger rod (32) and joint unit, screw rod (12) bottom be provided with plunger (3) hole, plunger (3) hole be provided with internal thread (132), plunger rod (32) be provided with plunger rod screw thread (33), nut (2) be provided with nut draw-in groove (21), under the connection status plunger rod (32) with plunger (3) hole connect soon, the joint unit rotate the joint in nut draw-in groove (21).
2. A hexagonal-head eye bolt according to claim 1, wherein: the clamping unit comprises a plurality of switching protrusions (311), a rotating shaft (312) and a rotating plate (313), the switching protrusions (311) are fixedly connected to the circumference of the plunger head (31), a rotating groove and a shaft hole perpendicular to the rotating groove are formed in each switching protrusion (311), the rotating shaft (312) is inserted into the shaft hole, and the rotating plate (313) is sleeved on the rotating shaft (312).
3. A hexagonal-head eye bolt according to claim 2, wherein: the plurality of rotating plates (313) can rotate around the rotating shaft (312) in a free state, and in a bolt connection state, the free ends of the rotating plates (313) are retracted and clamped in the nut clamping grooves (21).
4. A hexagonal-head eye bolt according to claim 1, wherein: the bottom of the screw rod (12) is provided with a plurality of adjusting sheets (13) around the hole of the plunger (3), and an adjusting groove (131) is formed between the adjusting sheets (13).
5. A hexagonal-head eye bolt according to claim 1, wherein: the plunger rod thread (33) is a left-hand thread on the outer side of the plunger rod (32), the plunger rod (32) is cylindrical or truncated cone-shaped, and the diameter of the cross section of the plunger rod (32) at the position away from the plunger head (31) is smaller by the truncated cone-shaped thread.
6. A hexagonal-head eye bolt according to claim 1, wherein: the head hole (111) is arranged on the side surface hexagonal adjacent surface, the interval surface or the opposite surface of the screw head (11).
7. A hexagonal head bolt with a hole and a production process thereof are characterized in that: the production process of the bolt body (1) comprises
The method comprises the following steps: the wire rod clamped in the shearing die is cut into required blanks through the unidirectional movement of the shearing mechanism,
step two: the rear die pushes the blank die to extrude the blank, the blank is preliminarily formed, the rear die pushes out the blank, and the third step is that: the blank enters a second die, the second die is used for extrusion, the blank is oblate, then the rear die is used for pushing out the blank,
step four: the blank enters a third forging die, a hexagonal head of the blank is preliminarily formed by cutting the hexagonal three-die kernel, then the blank is pushed into the third forging die by a rear die, the cut material is cut off from the hexagonal head, and the hexagonal head is formed,
step five: grinding the screw (12) by taking the end face of the hexagonal head as a reference,
step six: the screw rod (12) is partially clamped in the clamp by taking the end surface of the hexagon head as a reference, and the hole of the plunger (3) is drilled,
step seven: tapping in the hole of the plunger (3) by taking the end surface of the hexagon head as a reference,
step eight: using one end face of the hexagonal head as a reference, milling the outer wall of the hole of the plunger (3) by using a milling cutter to form an adjusting groove (131),
step nine: a head hole (111) is drilled in the hexagonal head side wall with one end face of the hexagonal head as a reference.
8. A hexagonal head bolt with a hole and a production process thereof are characterized in that: the production process of the plunger (3) comprises the following steps:
the method comprises the following steps: the wire is stamped and extruded to form a plunger rod (32), a plunger head (31) and a plunger head (31) side surface switching bulge (311),
step two: milling the connecting bulge (311) to form a rotating groove by taking the end surface of the plunger head (31) as a reference,
step three: the switching bulge (311) is taken as a reference, the switching bulge (311) is positioned in the clamp, the shaft hole is tapped by the switching bulge (311) corresponding to the reference,
step four: selecting a corresponding rotating shaft (312), and assembling the rotating plate (313) to the switching protrusion (311) through the rotating shaft (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826304.3A CN113464537A (en) | 2021-07-21 | 2021-07-21 | Hexagonal head bolt with hole and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826304.3A CN113464537A (en) | 2021-07-21 | 2021-07-21 | Hexagonal head bolt with hole and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113464537A true CN113464537A (en) | 2021-10-01 |
Family
ID=77881640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110826304.3A Pending CN113464537A (en) | 2021-07-21 | 2021-07-21 | Hexagonal head bolt with hole and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113464537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847113A (en) * | 2022-12-16 | 2023-03-28 | 温州市强杰科技实业有限公司 | Nut cutting forming device |
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| US20070201965A1 (en) * | 2006-02-28 | 2007-08-30 | Barry Littlewood | Threaded fastening systems |
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| CN104454881A (en) * | 2014-09-26 | 2015-03-25 | 无锡市天力五金弹簧厂 | Raw materials and process for manufacturing hexagon bolts |
| CN105605067A (en) * | 2016-02-19 | 2016-05-25 | 扬州丰登精密机械有限公司 | Easy-to-screw bolt |
| CN106969021A (en) * | 2017-04-20 | 2017-07-21 | 四川西普石油物资装备有限公司 | Engineering machinery fastener with locking functions |
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-
2021
- 2021-07-21 CN CN202110826304.3A patent/CN113464537A/en active Pending
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| KR20010112987A (en) * | 2000-06-15 | 2001-12-24 | 김민박,라이문트하이넨 | Preventive structure of screw relax |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847113A (en) * | 2022-12-16 | 2023-03-28 | 温州市强杰科技实业有限公司 | Nut cutting forming device |
| CN115847113B (en) * | 2022-12-16 | 2023-06-27 | 温州市强杰科技实业有限公司 | Nut cutting forming device |
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