CN109622869A - A kind of assembling bolt and preparation method thereof and device - Google Patents
A kind of assembling bolt and preparation method thereof and device Download PDFInfo
- Publication number
- CN109622869A CN109622869A CN201811630867.XA CN201811630867A CN109622869A CN 109622869 A CN109622869 A CN 109622869A CN 201811630867 A CN201811630867 A CN 201811630867A CN 109622869 A CN109622869 A CN 109622869A
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- Prior art keywords
- bolt
- bushing
- flange
- bar portion
- head
- Prior art date
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000004381 surface treatment 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
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
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- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of assembling bolt and preparation method thereof and devices.The assembling bolt includes bolt and bushing, the bolt includes head and bar portion, the bushing is sheathed on outside the bar portion, the bar portion includes the light bar segment close to the head and the thread segment far from the head, the light bar segment is equipped with the ring-shaped groove to connect and first flange, the ring-shaped groove and the first flange are integrally formed by rubbing ditch with the hands, the first flange is located at the ring-shaped groove close to the side of the thread segment, the outer diameter of the first flange is greater than the outer diameter of the light bar segment and the major diameter of the thread segment, the internal diameter of the bushing is greater than the outer diameter of the first flange, the inner sidewall of the bushing is equipped with the snap ring of annular, the internal diameter of the snap ring is greater than the outer diameter of the light bar segment and is less than the outer diameter of the first flange.The quality, service life, production efficiency of assembling bolt can be improved in the technical solution adopted in the present invention, reduces material loss, reduces production cost.
Description
Technical field
The present invention relates to technical field of fastening, particularly a kind of assembling bolt and preparation method thereof and device.
Background technique
Generallyd use on the air cleaner of automobile it is a kind of comprising bolt and be sheathed on bolt shank assembling bolt come into
The connection of row components, and require the bushing of the assembling bolt can be free along the spiro rod length direction of matched bolt
It is mobile, while bushing cannot fall off from screw rod easily.
Current assembling bolt most of on the market is to be limited by the thread on bolt to bushing, bushing and screw rod
It is easy to cause thread to be worn after long-term relative motion, influences the fastening performance of assembling bolt.It is logical that there are also assembling bolts
It crosses and flange is set on the screw rod of bolt to limit to bushing, but the flange is by carrying out turnery processing shape to screw rod
At production efficiency is low, and causes waste of material.
Summary of the invention
In order to overcome the defects of the prior art, the embodiment of the invention provides a kind of assembling bolt and preparation method thereof and
At least one of device, be used to solve the above problems.
The embodiment of the present application discloses: a kind of assembling bolt, including bolt and bushing, and the bolt includes head and bar
Portion, the bushing are sheathed on outside the bar portion, and the bar portion includes close to the light bar segment on the head and far from the head
Thread segment, the light bar segment are equipped with the ring-shaped groove to connect and first flange, and the ring-shaped groove and the first flange are logical
The integrated molding of stranding ditch is crossed, the first flange is located at the ring-shaped groove close to the side of the thread segment, the first flange
Outer diameter be greater than the outer diameter of the light bar segment and the major diameter of the thread segment, the internal diameter of the bushing is greater than the first flange
Outer diameter, the inner sidewall of the bushing are equipped with the snap ring of annular, and the internal diameter of the snap ring is greater than the outer diameter of the light bar segment and small
In the outer diameter of the first flange.
Specifically, the head of the bolt and the junction of bar portion are equipped with rounded corner.
Specifically, one end of the bushing is equipped with the second flange contacted with the head of the bolt, the snap ring is located at
The lateral wall of side of the second flange far from the head, the other end of the bushing is equipped with outer chamfer.
Specifically, the both ends of the inner sidewall of the bushing are respectively equipped with inner chamfer.
Specifically, the bushing is made of SWRCH10A material.
The present embodiment also discloses a kind of preparation method of assembling bolt, comprising the following steps:
By the first blank cold-heading at bolt blank, wherein the bolt blank includes integrally formed head and bar portion；
Stranding ditch is carried out to the bar portion of bolt blank, during rubbing ditch with the hands, forms ring-shaped groove, and by the part of stranding ditch
It is extruded to ring-shaped groove and forms first flange far from the side on the head；
Thread is processed in the bar portion of the bolt blank, forms bolt, it is remote that the thread is located at the first flange
Side from the head；
By the second blank cold-heading at bushing；
The bushing is sheathed on outside the bar portion of the bolt, snap ring is then processed on the bushing, forms combination
Bolt, wherein the snap ring is located on the inner sidewall of the bushing, and the internal diameter of the snap ring is small greater than the outer diameter of bolt shank
In the outer diameter of the first flange.
Specifically, step " stranding ditch is carried out to the bar portion of bolt blank, during rubbing ditch with the hands, formed ring-shaped groove, and
And ring-shaped groove is extruded to by the part of stranding ditch and forms first flange far from the side on the head " in, ditch is rubbed with the hands using first
Mechanism carries out stranding ditch to the bar portion of bolt blank, and first Cuo Gou mechanism includes that mutually matched first fixed board and first are dynamic
It is respectively provided with to form the of the ring-shaped groove on the side that plate, first fixed board and first movable plate are oppositely arranged
The side that one boss, first fixed board and first movable plate are oppositely arranged respectively further comprises the first upper end and the first lower end,
First upper end is located at the first boss close to the side on the head, and it is remote that first lower end is located at the first boss
Side from the head, first upper end is relative to first lower end closer to the bar portion of the bolt.
Specifically, in step " bushing being sheathed on outside the bar portion of the bolt, is then processed on the bushing
Snap ring forms assembling bolt, wherein the snap ring is located on the inner sidewall of the bushing, and the internal diameter of the snap ring is greater than bolt
In the outer diameter of bar portion and the outer diameter for being less than the first flange ", the lateral wall of the bushing is carried out using the second Cuo Gou mechanism
Rub ditch with the hands, the bushing is squeezed into the inside of the bushing by the part of stranding ditch, and institute is formed on the inner sidewall of the bushing
State snap ring.
Specifically, second Cuo Gou mechanism includes mutually matched second fixed board and the second movable plate, second fixed board
The second boss to form the snap ring is respectively provided on the side being oppositely arranged with second movable plate.
The present embodiment also discloses a kind of preparation facilities of screw assemblies, including is used for the first blank cold-heading into bolt hair
First cold-heading mechanism of base, for by the second blank cold-heading at bushing the second cold-heading mechanism, be used for the bolt blank
Bar portion processes the first Cuo Gou mechanism of ring-shaped groove and first flange, for the bar portion of the bolt blank to be processed thread
Threading mechanism and the second Cuo Gou mechanism for the bushing to be processed to snap ring.
Beneficial effects of the present invention are as follows:
1. the bushing of assembling bolt is limited by the first flange on bolt shank, allow bushing in bar portion
It moves freely and does not fall off easily from bar portion but, using and installing convenient for assembling bolt, meanwhile, bushing is in the process of moving
Screw thread will not will not be caused to wear, improve the service life of assembling bolt with the thread contact on bolt；
2. process first flange to bolt shank using the first Cuo Gou mechanism, and turnery processing shape is used in the prior art
It is compared at the mode of flange, the scheme in the present invention can both greatly improve production efficiency, also save material, reduce
Production cost.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of assembling bolt described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of bolt described in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of bushing described in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the first Cuo Gou mechanism described in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the second Cuo Gou mechanism described in the embodiment of the present invention.
The appended drawing reference of the figures above: 1- bolt, the head 11-, 12- bar portion, 121- light bar segment, 122- thread segment, 1211-
Ring-shaped groove, 1212- first flange, 13- rounded corner, 2- bushing, 21- snap ring, 22- second flange, 23- outer chamfer, 24- are interior
Angle, the first fixed board of 31-, the first movable plate of 32-, 311- first boss, the first upper end 312-, the first lower end 313-, 314- groove,
The second fixed board of 41-, the second movable plate of 42-, 411- second boss.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In conjunction with shown in Fig. 1 to 3, assembling bolt described in the embodiment of the present invention includes bolt 1 and bushing 2, the bolt 1
Including integrally formed head 11 and bar portion 12, the bushing 2 is sheathed on outside the bar portion 12, and the bar portion 12 includes close to institute
The light bar segment 121 on head 11 and the thread segment 122 far from the head are stated, the light bar segment 121 is equipped with the annular ditch to connect
Slot 1211 and first flange 1212, the ring-shaped groove 1211 and the first flange 1212 are integrally formed out by rubbing ditch technique with the hands
Come, that is to say, that when the polished rod 121 to bolt 1 carries out stranding ditch, be formed simultaneously ring-shaped groove 1211 and the first method on polished rod 121
Orchid 1212, the first flange 1212 is located at the ring-shaped groove 1211 close to the side of the thread segment 122.First method
(major diameter refers to and external screw thread crest the outer diameter and the major diameter of the thread segment 122 that the outer diameter of orchid 1212 is greater than the light bar segment 121
Or the diameter of the tangent ideal cylinder in internal screw thread tooth bottom), the internal diameter of the bushing 2 is greater than the outer diameter of the first flange 1212,
The inner sidewall of the bushing 2 is equipped with the snap ring 21 of annular, the internal diameter of the snap ring 21 be greater than the outer diameter of the light bar segment 121 and
Less than the outer diameter of the first flange 1212.Preferably, the outer diameter of the light bar segment 121 and the major diameter phase of the thread segment 122
Deng, in this way, it is convenient for the molding of bar portion 12, the structure of simplified 1 molding die of bolt, when the outer diameter of light bar segment 121 is less than thread segment
It when 122 major diameter, needs to realize by turnery processing, therefore is equal to the major diameter of thread segment 122 using the outer diameter of light bar segment 121
When, also save turning process, save the cost.
Assembling bolt described in the present embodiment, due to the snap ring 21 on bushing 2 internal diameter be greater than light bar segment 121 outer diameter and
Less than the outer diameter of first flange 1212, therefore, bushing 2 can move freely in its bar portion 12 along the axis direction of bolt 1, and
Guarantee that bushing 2 will not fall off from bar portion 12 easily, convenient for carrying and using for assembling bolt.In addition, since bushing 2 is to pass through
First flange 1212 rather than thread segment 122 are limited, and therefore, bushing 2 will not be to thread segment 122 during moving freely
Thread have an impact, i.e., thread will not be worn because of the movement of bushing 2, and the service life of assembling bolt is improved.Furthermore
Due to substantially increasing the production efficiency of assembling bolt, reducing without processing first flange 1212 by turning process
Waste of material reduces production cost.
Specifically, the head 11 of the bolt 1 and the axis of bar portion 12 are overlapped, described with continued reference to shown in Fig. 1 to Fig. 3
The axis of bushing 2 and the bolt 1 is overlapped.The head 11 of the bolt 1 and the junction of bar portion 12 are equipped with rounded corner 13, the circle
Chamfering 13 can reduce the stress centrality of junction, avoid being broken between head 11 and bar portion 12, improve assembling bolt
Service life.Further, one end of the bushing 2 is equipped with second flange 22, and the second flange 22 is used for and the bolt 1
Head 11 contact, the snap ring 21 is located at side of the second flange 22 far from the head 11, the second flange 22
Side and connected isoelectric membrane far from the head 11, to increase the area of assembling bolt Yu connected isoelectric membrane,
Reduce pressure between the two, to protect the connecting portion for being connected object；The lateral wall of the other end of the bushing 2 is equipped with
Outer chamfer 23, the outer chamfer 23 is convenient for the connection between the bushing 2 and connected object.The two of the inner sidewall of the bushing 2
End is respectively equipped with inner chamfer 24, is used to avoid head 11 and the bar portion of bolt 1 close to the inner chamfer 24 on the head 11 of the bolt 1
Rounded corner 13 between 12, it is ensured that the precision that bolt 1 and bushing 2 cooperate, and the inner chamfer 24 far from head 11 is for avoiding
The thread of thread segment 122 avoids occurring the phenomenon that wall friction in thread and bushing 2 within the scope of tolerance range.
Specifically, the bushing 2 is made of SWRCH10A material, tensile strength is not less than 335Mpa, yield strength
Not less than 205MPa, elongation is greater than 31%, has excellent mechanical performance.
Shown in 3, the preparation method of assembling bolt described in the present embodiment the following steps are included:
By the first blank cold-heading at bolt blank, wherein the bolt blank includes integrally formed head 11 and bar portion
12, bar portion 12 at this time is polished rod, i.e., non-threaded in bar portion 12, the bolt blank further includes being formed in the head 11 and bar
The rounded corner 13 of the junction in portion 12；
Ring-shaped groove 1211 and first flange 1212, the first flange are processed in the bar portion 12 of the bolt blank
1212 are located at side of the ring-shaped groove 1211 far from the head 11, specifically, the bar portion 12 to bolt blank is rubbed with the hands
Ditch forms ring-shaped groove 1211, and be extruded to ring-shaped groove 1211 far from institute by the part of stranding ditch during rubbing ditch with the hands
The side for stating head forms first flange 1212；
Thread is processed in the bar portion 12 of the bolt blank, forms bolt 1, and the thread is located at the first flange
1212 sides far from the head 11, in other words, bar portion 12 are located at side of the first flange 1212 far from 1 head 11 of bolt
Thread segment 122 is formed, it is light bar segment 121 that bar portion 12, which is located at first flange 1212 close to the side on 1 head 11 of bolt,；
By the second blank cold-heading at bushing 2, specifically, on outer chamfer 23, inner sidewall on the lateral wall of the bushing 2
Two inner chamfers 24 are also formed by cold-heading together；
The bushing 2 is sheathed on outside the bar portion 12 of the bolt 1, then processes snap ring 21, shape on the bushing 2
At assembling bolt, wherein the snap ring 21 is located on the inner sidewall of the bushing 2, and the internal diameter of the snap ring 21 is greater than the bar
The outer diameter in portion 12 and be less than the first flange 1212 outer diameter；
Preferably, to the assembling bolt carry out subsequent processing, specifically, the subsequent processing include to assembling bolt into
Heat treatment, surface treatment etc. go to improve the mechanical performance of assembling bolt.
Specifically, as shown in figure 4, step " stranding ditch is carried out to the bar portion 12 of bolt blank, during rubbing ditch with the hands, shape
Groove 1211 is circularized, and ring-shaped groove 1211 is extruded to by the part of stranding ditch and forms first far from the side on the head
In flange 1212 ", stranding ditch is carried out using bar portion 12 of the first Cuo Gou mechanism to bolt blank, rubs with the hands and is processed ring-shaped groove at ditch
1211, the bar portion 12 is extruded to ring-shaped groove 1211 by the material at stranding ditch position and forms the far from the side on the head 11
One flange 1212.That is the first flange 1212 is to carry out stranding ditch by the bar portion 12 to bolt blank to squeeze to be formed
, not by bar portion 12 carry out turnery processing formed, due to the speed of production of the first Cuo Gou mechanism can achieve 110/
Therefore using this scheme, processing efficiency both can be improved in min, can also reduce the waste of material.
Further, with continued reference to shown in Fig. 4, first Cuo Gou mechanism includes mutually matched first fixed board 31 and
It is respectively provided with to form the ring on the side that one movable plate 32, first fixed board 31 and first movable plate 32 are oppositely arranged
It also wraps respectively the side that the first boss 311 of shape groove 1211, first fixed board 31 and first movable plate 32 are oppositely arranged
The first upper end 312 and the first lower end 313 are included, first upper end 312 is located at the first boss 311 close to the bolt 1
The side on head 11, first lower end 313 are located at side of the first boss 311 far from the head 11, and described first
Upper end 312 relative to first lower end 313 closer to the bar portion 12 of the bolt 1, preferably, first lower end 313 is leaned on
The groove 314 for avoiding the first flange 1212 gradually formed is additionally provided at the nearly first boss 311.Specifically, exist
When carrying out stranding ditch using bar portion 12 of the first Cuo Gou mechanism to bolt 1, as the first Cuo Gou mechanism is along being radially inserted into bar portion 12
In, the first upper end 312 on the side that the first fixed board 31 and the first movable plate 32 are oppositely arranged first is contacted with the bar portion 12 of bolt 1,
And can have a gap between the first lower end 313 and bar portion 12, therefore, it is ensured that bar portion 12 is by the material quilt of the position of stranding ditch
It is expressed in above-mentioned gap, forms first flange 1212.
Specifically, as shown in figure 5, " bushing 2 is sheathed on outside the bar portion 12 of the bolt 1, then in institute in step
It states and processes snap ring 21 on bushing 2, form assembling bolt, wherein the snap ring 21 is located on the inner sidewall of the bushing 2, institute
State snap ring 21 internal diameter be greater than 1 bar portion 12 of bolt outer diameter and be less than the first flange 1212 outer diameter " in, using second rub with the hands
Ditch mechanism carries out stranding ditch to the lateral wall of the bushing 2, and the bushing 2 is squeezed into the bushing 2 by the material at stranding ditch position
Inside, and the snap ring 21 is formed on the inner sidewall of the bushing 2.The speed of production of second Cuo Gou mechanism can reach
60/min.Further, second Cuo Gou mechanism includes mutually matched second fixed board 41 and the second movable plate 42, and described
The second boss to form the snap ring 21 is respectively provided on the side that two fixed boards 41 and second movable plate 42 are oppositely arranged
411.Specifically, when carrying out stranding ditch to the lateral wall of bushing 2 using the second Cuo Gou mechanism, since bushing 2 is hollow knot
Therefore structure will not be reversed extrusion by the material at stranding ditch position, but be squeezed into the inside of bushing 2, namely in bushing 2
Side wall up stroke one annular snap ring 21.It is made of bushing 2 in this present embodiment of SWRCH10A material, tension is strong
Degree is not less than 335Mpa, and yield strength is not less than 205MPa, and elongation is greater than 31%, therefore, it can be ensured that when the formation of snap ring 21, no
It is cracked, there is good quality.
In conclusion preparation method described in the present embodiment, first passes through and is separately formed out two lists using cold heading technique
Part, then bolt assembly is processed into two separate rooms by rubbing ditch technique with the hands, in the same of the quality and service performance for meeting assembling bolt
When, the production efficiency of product is greatly improved, the proportion of goods damageds of material is reduced, has saved production cost.
The embodiment of the invention also discloses a kind of preparation facilities of screw assemblies, including are used for the first blank cold-heading into spiral shell
First cold-heading mechanism (not shown) of bolt blank, for by the second blank cold-heading at bushing 2 the second cold-heading mechanism (not shown),
For the bar portion 12 of the bolt blank to be processed to the first Cuo Gou mechanism of ring-shaped groove 1211 and first flange 1212, is used for
The bar portion 12 of the bolt blank is processed into the threading mechanism (not shown) of thread and for the bushing 2 to be processed card release
Second Cuo Gou mechanism of ring 21.Wherein, this field can be used in first cold-heading mechanism, the second cold-heading mechanism and threading mechanism
Conventional mechanisms employed in conventional technical means.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of assembling bolt, which is characterized in that including bolt and bushing, the bolt includes head and bar portion, the bushing
It is sheathed on outside the bar portion, the bar portion includes the thread segment of the light bar segment and the separate head close to the head, described
Light bar segment is equipped with the ring-shaped groove that connects and first flange, the ring-shaped groove and the first flange by rub with the hands ditch one at
Type, the first flange are located at the ring-shaped groove close to the side of the thread segment, and the outer diameter of the first flange is greater than institute
The outer diameter of light bar segment and the major diameter of the thread segment are stated, the internal diameter of the bushing is greater than the outer diameter of the first flange, the lining
The inner sidewall of set is equipped with the snap ring of annular, and the internal diameter of the snap ring is greater than the outer diameter of the light bar segment and is less than first method
Blue outer diameter.
2. assembling bolt according to claim 1, which is characterized in that the head of the bolt and the junction of bar portion are equipped with
Rounded corner.
3. assembling bolt according to claim 1, which is characterized in that one end of the bushing is equipped with the head with the bolt
The second flange of portion's contact, the snap ring are located at side of the second flange far from the head, the other end of the bushing
Lateral wall be equipped with outer chamfer.
4. assembling bolt according to claim 1, which is characterized in that in the both ends of the inner sidewall of the bushing are respectively equipped with
Chamfering.
5. assembling bolt according to claim 1, which is characterized in that the bushing is made of SWRCH10A material.
6. a kind of preparation method of assembling bolt, which comprises the following steps:
By the first blank cold-heading at bolt blank, wherein the bolt blank includes integrally formed head and bar portion；
Stranding ditch is carried out to the bar portion of bolt blank, during rubbing ditch with the hands, forms ring-shaped groove, and be squeezed by the part of stranding ditch
It is pressed onto ring-shaped groove and forms first flange far from the side on the head；
Thread is processed in the bar portion of the bolt blank, forms bolt, and the thread is located at the first flange far from institute
State the side on head；
By the second blank cold-heading at bushing；
The bushing is sheathed on outside the bar portion of the bolt, snap ring is then processed on the bushing, forms assembling bolt,
Wherein, the snap ring is located on the inner sidewall of the bushing, and the internal diameter of the snap ring is greater than the outer diameter of bolt shank and is less than institute
State the outer diameter of first flange.
7. the preparation method of assembling bolt according to claim 6, which is characterized in that in step " to the bar of bolt blank
Portion carries out stranding ditch, during rubbing ditch with the hands, forms ring-shaped groove, and be extruded to ring-shaped groove far from institute by the part of stranding ditch
The side for stating head forms first flange " in, stranding ditch is carried out using bar portion of the first Cuo Gou mechanism to bolt blank, described first
Cuo Gou mechanism includes mutually matched first fixed board and the first movable plate, what first fixed board and first movable plate were oppositely arranged
The first boss to form the ring-shaped groove is respectively provided on side, first fixed board and first movable plate are set in opposite directions
The side set respectively further comprises the first upper end and the first lower end, and first upper end is located at the first boss close to the head
Side, first lower end is located at side of the first boss far from the head, and first upper end is relative to described
Bar portion of first lower end closer to the bolt.
8. the preparation method of assembling bolt according to claim 6, which is characterized in that " be arranged the bushing in step
In outside the bar portion of the bolt, then processing snap ring on the bushing, assembling bolt is formed, wherein the snap ring is located at
On the inner sidewall of the bushing, the internal diameter of the snap ring is greater than the outer diameter of bolt shank and is less than the outer diameter of the first flange "
In, stranding ditch is carried out using lateral wall of the second Cuo Gou mechanism to the bushing, the bushing is squeezed into institute by the part of stranding ditch
The inside of bushing is stated, and forms the snap ring on the inner sidewall of the bushing.
9. the preparation method of assembling bolt according to claim 8, which is characterized in that second Cuo Gou mechanism includes phase
It is respectively equipped on the side that the second fixed board and the second movable plate mutually cooperated, second fixed board and second movable plate are oppositely arranged
It is used to form the second boss of the snap ring.
10. a kind of preparation facilities of screw assemblies, which is characterized in that including for by the first blank cold-heading at bolt blank
One cold-heading mechanism, for by the second blank cold-heading at bushing the second cold-heading mechanism, be used to add the bar portion of the bolt blank
Work goes out ring-shaped groove and the first Cuo Gou mechanism of first flange, the threading for the bar portion of the bolt blank to be processed to thread
Mechanism and the second Cuo Gou mechanism for the bushing to be processed to snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630867.XA CN109622869A (en) | 2018-12-29 | 2018-12-29 | A kind of assembling bolt and preparation method thereof and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630867.XA CN109622869A (en) | 2018-12-29 | 2018-12-29 | A kind of assembling bolt and preparation method thereof and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622869A true CN109622869A (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811630867.XA Pending CN109622869A (en) | 2018-12-29 | 2018-12-29 | A kind of assembling bolt and preparation method thereof and device |
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| CN (1) | CN109622869A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576143A (en) * | 2019-09-20 | 2019-12-17 | 宾科汽车紧固件（昆山）有限公司 | cold heading device and process for forming screw and screw |
| CN111421309A (en) * | 2020-05-26 | 2020-07-17 | 王丽 | Titanium alloy hake rivet manufacturing process |
| CN112648276A (en) * | 2020-11-05 | 2021-04-13 | 苏州华丰不锈钢紧固件有限公司 | T-shaped bolt and manufacturing method thereof |
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| US5810670A (en) * | 1995-08-08 | 1998-09-22 | Tsuda Kogyo Kabushiki Kaisha | Method of manufacturing connector bolt |
| CN203992195U (en) * | 2014-06-16 | 2014-12-10 | 吴江思库特精密电子有限公司 | The screw moulding dental lamina of integral type |
| WO2017055269A1 (en) * | 2015-09-29 | 2017-04-06 | LISI Automotive Knipping Verbindungstechnik GmbH | Screw with captively retained spacer sleeve |
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| TWM555421U (en) * | 2017-09-13 | 2018-02-11 | Wang Zhi Wei | Anti-rotation washer and anti-rotation bolt set |
| CN207154636U (en) * | 2017-07-26 | 2018-03-30 | 嘉兴弘邦金属制品有限公司 | Dental lamina |
| CN209753921U (en) * | 2018-12-29 | 2019-12-10 | 宾科汽车紧固件（昆山）有限公司 | Combination bolt and preparation device thereof |
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| US5810670A (en) * | 1995-08-08 | 1998-09-22 | Tsuda Kogyo Kabushiki Kaisha | Method of manufacturing connector bolt |
| CN203992195U (en) * | 2014-06-16 | 2014-12-10 | 吴江思库特精密电子有限公司 | The screw moulding dental lamina of integral type |
| WO2017055269A1 (en) * | 2015-09-29 | 2017-04-06 | LISI Automotive Knipping Verbindungstechnik GmbH | Screw with captively retained spacer sleeve |
| CN206682127U (en) * | 2017-04-06 | 2017-11-28 | 超捷紧固系统(上海)股份有限公司 | Plastic end cover does not take off bolt assembly with bushing pine |
| CN207154636U (en) * | 2017-07-26 | 2018-03-30 | 嘉兴弘邦金属制品有限公司 | Dental lamina |
| TWM555421U (en) * | 2017-09-13 | 2018-02-11 | Wang Zhi Wei | Anti-rotation washer and anti-rotation bolt set |
| CN209753921U (en) * | 2018-12-29 | 2019-12-10 | 宾科汽车紧固件（昆山）有限公司 | Combination bolt and preparation device thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576143A (en) * | 2019-09-20 | 2019-12-17 | 宾科汽车紧固件（昆山）有限公司 | cold heading device and process for forming screw and screw |
| CN111421309A (en) * | 2020-05-26 | 2020-07-17 | 王丽 | Titanium alloy hake rivet manufacturing process |
| CN112648276A (en) * | 2020-11-05 | 2021-04-13 | 苏州华丰不锈钢紧固件有限公司 | T-shaped bolt and manufacturing method thereof |
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