CN209586906U - A kind of taper coiled hair weld bolt - Google Patents
A kind of taper coiled hair weld bolt Download PDFInfo
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- CN209586906U CN209586906U CN201920297487.2U CN201920297487U CN209586906U CN 209586906 U CN209586906 U CN 209586906U CN 201920297487 U CN201920297487 U CN 201920297487U CN 209586906 U CN209586906 U CN 209586906U
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- rod
- lock section
- bolt
- coiled hair
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Abstract
The utility model discloses a kind of taper coiled hair weld bolts, including the body of rod, one end of the body of rod is provided with flat circle disk, the flat circle disk is provided with trapezoidal disc face far from one end of the body of rod, the trapezoidal disc face is provided with tapered disk face far from one end of flat circle disk, it is from left to right successively arranged on the body of rod with the thread of round spiral and circle tooth, the other end of the body of rod is provided with the second brill lock section, second brill lock section is provided with the first brill lock section far from one end of the body of rod, the first brill lock section is provided with depressed area at one end center far from the second brill lock section, the taper coiled hair weld bolt, bear larger screw-down torque, bonding strength is high, tightening force is bigger, it is connected between feature, it is compact-sized, prevent bolt fracture, increase its service life；By the setting of Rustproofing apparatus, convenient for being easy to use bolt immersion in liquid preventives.
Description
Technical field
The utility model relates to bolt technical fields, and in particular to a kind of taper coiled hair weld bolt.
Background technique
In recent years, as the progress of society, automobile industry are flourished, huge numbers of families are also gradually come into, are welded
Connecting bolt is frequently used on the car body component of automobile, is that weldering is arranged on the continuing surface of bolt head as weld bolt in the past
Protrusion is connect, and sets up separately in the neck lower part of bolt and sets the guide portion chimeric with the insertion hole formed on automobile car body component.
This weld bolt is to weld as follows with plate: bolt being inserted into insertion hole first, keeps guide portion and insertion hole embedding
Merge and be inserted into bolt and inserts in the hole so that welding projection abuts plate surface；Then the side to be pressurizeed by upper/lower electrode
Formula clamping is inserted into the bolt and plate to insert in the hole；Then, to upper and lower in the state of being clamped by upper/lower electrode
Electrode connects welding current, to make bolt be crimped on plate while melting welding projection and carry out.
Welding procedure is the common manufacturing process of body of a motor car skeleton, and wherein bolt welding is body of a motor car skeleton components
Upper common mode.
But the radial shear power that existing bolt can bear after fastening object is smaller, is easily broken off to reduce
The service life of bolt is not easy to install, therefore designs a kind of taper coiled hair weld bolt.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of taper coiled hair weld bolt,
The taper coiled hair weld bolt bears larger screw-down torque, and bonding strength is high, and tightening force is bigger, holds in the mouth between feature
It connects, it is compact-sized, bolt fracture is prevented, its service life is increased；By the setting of Rustproofing apparatus and the preparation of rust remover, it is convenient for
By bolt immersion in liquid preventives, it is easy to use.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of taper coiled hair weld bolt, including the body of rod, one end of the body of rod are provided with flat circle disk, the plane
Disc face is provided with trapezoidal disc face far from one end of the body of rod, and the trapezoidal disc face is provided with far from one end of flat circle disk
Tapered disk face is from left to right successively arranged on the body of rod with the thread of round spiral and circle tooth, the body of rod it is another
End is provided with the second brill lock section, and the second brill lock section is provided with the first brill lock section far from one end of the body of rod, and described first bores lock
Portion is provided with depressed area at one end center far from the second brill lock section.
A kind of processing technology of taper coiled hair weld bolt, the following steps are included:
Step 1: wire drawing: raw material are subjected to wire-drawing shape using wire-drawing equipment and mold, reach required shape and
Size；
Step 2: cold-heading: the material use cold-heading equipment after wire-drawing shape being carried out cold-heading molding, is molded shape
Lock section is bored at the body of rod of bolt, flat circle disk, trapezoidal disc face, tapered disk face, first, lock is bored in the second brill lock section and first
Portion；And a depressed area is dug at the center of the first brill lock section by excavator；
Step 3: threading: rubbing thread and circle tooth on the body of rod of bolt using threading equipment；
Step 4: entire bolt is heat-treated；
Step 5: pickling: the bolt after tempering is placed in the hydrochloric acid that concentration is 5-7% and impregnates 10-15min, it is rear with clear
Water is cleaned, then being placed in concentration is to impregnate 5-8min in 1-2% phosphate solution, is finally cleaned with clear water；
Step 6: arranging: impregnating bolt by the way that antirust agent is added in Rustproofing apparatus, its surface is made to form antirust coat, antirust
Finished product can be obtained after air-drying with a thickness of 10 ± 5 μm in layer.
As a further solution of the present invention: described first bores lock section in truncated cone-shaped, the second brill lock section is cylindrical,
Second diameter for boring lock section is 4.59-4.8mm, and the first brill lock section is bored lock section with second and is arranged in 40-50 degree angle.
As a further solution of the present invention: being in 3.5-4.5 degree between the tapered disk face and trapezoidal disc face
Angle setting.
As a further solution of the present invention: the trapezoidal disc face diameter is greater than shank diameter.
As a further solution of the present invention: the length of the round tooth is 2.3mm.
As a further solution of the present invention: antirust agent is prepared by following step in the step 6: In
0.5g corrosion inhibiter phosphoric acid sodium and 0.5g methenamine are added in 14.0g distilled water, 1.0gOP- is added to dissolving in stirring at normal temperature
10 surfactants, 3.0g auxiliary agent glycerine and 3.0g auxiliary agent propylene glycol, are added 13.0g silica after dissolution, stirring is completed
65.0g film forming agent propylene yogurt is added after dissolution, stirs 20min to get antirust agent.
As a further solution of the present invention: Rustproofing apparatus includes pedestal, cabinet and electric rotating in the step 6
Machine is equipped with cabinet at the top of the pedestal, and the cabinet is hollow structure, and the internal symmetry of the cabinet is equipped with two gas
Cylinder is fixedly connected with cylinder piston rod at the top of the cylinder, and two cylinder piston rods pass through link block and connect with hopper, described
Hopper is internally provided with filter screen, and the bottom end of the hopper is provided with drainage conduit, is provided with valve in the drainage conduit,
Rotating electric machine is installed, the bottom of the rotating electric machine is fixedly connected with shaft, the shaft at the top center of the cabinet
It protrudes at box house and connecting rod center and connect, the connecting rod both ends are fixedly connected with cage.
As a further solution of the present invention: top one end of the pedestal is equipped with storage box, the storage box
Side be fixedly connected with water pump, one end of the water pump is connect with feed pipe, and the feed pipe is located at far from one end of water pump
Above hopper.
As a further solution of the present invention: the cage can be put into hopper, and do not contacted with filter screen.
The utility model has the beneficial effects that
1, the taper coiled hair weld bolt bears larger screw-down torque, and bonding strength is high, and tightening force is bigger, advantageous portion
It is connected between part, is easily installed, it is compact-sized, bolt fracture is prevented, its service life is increased；
2, it is fed, is fed simple and convenient to hopper by feed pipe, by driving two cylinder operations, two cylinders are driven
Two cylinder piston rods are flexible, push hopper rise and fall, convenient for adjusting the height of hopper, facilitate and impregnate bolt and take out spiral shell
Bolt；Rotating electric machine drives connecting rod rotation by shaft, and connecting rod drives cage rotation, shortens the time that bolt impregnates, and improves
Working efficiency；It is easy to operate convenient for bolt is carried out antirust treatment, be easy to use, improve the service life of bolt, hopper it is interior
Portion is provided with filter screen, and since bolt surface contains dust, during immersion, dust can enter in antirust agent, passes through filtering
Net filters antirust agent, and is discharged by drainage conduit, convenient for antirust agent is recycled, saves resource；
3, the antirust agent of technique preparation, can improve the corrosion-resistant current potential of bolt, reduce its corrosion current, and corrosion speed
Degree has good corrosion-resisting function, a kind of antirust agent of environmental protection.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the utility model taper coiled hair weld bolt overall structure diagram；
Fig. 2 is the utility model taper coiled hair weld bolt bar structure schematic diagram；
Fig. 3 is the utility model taper coiled hair weld bolt side structure schematic view；
Fig. 4 is Rustproofing apparatus overall structure diagram in the utility model.
In figure: 1, the body of rod；2, trapezoidal disc face；3, flat circle disk；4, thread；5, second lock section is bored；6, first lock is bored
Portion；7, depressed area；8, tapered disk face；9, pedestal；10, drainage conduit；11, cylinder；12, cabinet；13, feed pipe；14, water pump；
15, storage box；16, hopper；17, cylinder piston rod；18, link block；19, shaft；20, rotating electric machine；21, connecting rod；22, it twists
Cage；23, filter screen；41, circle tooth.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1:
It please refers to shown in Fig. 1-4, a kind of taper coiled hair weld bolt, including the body of rod 1, one end of the body of rod 1 are provided with plane
Disc face 3, flat circle disk 3 are provided with trapezoidal disc face 2 far from one end of the body of rod 1, and trapezoidal disc face 2 is far from flat circle disk
3 one end is provided with tapered disk face 8, is from left to right successively arranged on the body of rod 1 with the thread 4 of round spiral and circle tooth 41,
The other end of the body of rod 1 is provided with the second brill lock section 5, and the second brill lock section 5 is provided with the first brill lock section 6 far from one end of the body of rod 1, the
One brill lock section 6 is provided with depressed area 7 at one end center far from the second brill lock section 5；First bores lock section 6 bores in truncated cone-shaped, second
Lock section 5 is cylindrical, and the second diameter for boring lock section 5 is 4.59-4.8mm, and first bores lock section 6 and the second brill lock section 5 in 40-50
Spend angle setting；It is arranged between tapered disk face 8 and trapezoidal disc face 2 in 3.5-4.5 degree angle；Trapezoidal 2 diameter of disc face is greater than bar
1 diameter of body, the length of circle tooth 41 are 2.3mm.
A kind of processing technology of taper coiled hair weld bolt, the following steps are included:
Step 1: wire drawing: raw material are subjected to wire-drawing shape using wire-drawing equipment and mold, reach required shape and
Size；
Step 2: cold-heading: the material use cold-heading equipment after wire-drawing shape being carried out cold-heading molding, is molded shape
Lock section is bored at the body of rod of bolt, flat circle disk, trapezoidal disc face, tapered disk face, first, lock is bored in the second brill lock section and first
Portion；And a depressed area is dug at the center of the first brill lock section by excavator；
Step 3: threading: rubbing thread and circle tooth on the body of rod of bolt using threading equipment；
Step 4: entire bolt is heat-treated；
Step 5: pickling: the bolt after tempering is placed in the hydrochloric acid that concentration is 5-7% and impregnates 10-15min, it is rear with clear
Water is cleaned, then being placed in concentration is to impregnate 5-8min in 1-2% phosphate solution, is finally cleaned with clear water；
Step 6: arranging: impregnating bolt by the way that antirust agent is added in Rustproofing apparatus, its surface is made to form antirust coat, antirust
Finished product can be obtained after air-drying with a thickness of 10 ± 5 μm in layer.
Antirust agent is prepared by following step in step 6: 0.5g corrosion inhibiter phosphoric acid being added in 14.0g distilled water
Sour sodium and 0.5g methenamine, stirring at normal temperature to dissolve, be added 1.0gOP-10 surfactant, 3.0g auxiliary agent glycerine and
13.0g silica is added in 3.0g auxiliary agent propylene glycol after dissolution, 65.0g film forming agent propylene yogurt is added after completing dissolution in stirring,
20min is stirred to get antirust agent.
Embodiment 2:
A kind of processing technology of taper coiled hair weld bolt, the following steps are included:
Step 1: wire drawing: raw material are subjected to wire-drawing shape using wire-drawing equipment and mold, reach required shape and
Size；
Step 2: cold-heading: the material use cold-heading equipment after wire-drawing shape being carried out cold-heading molding, is molded shape
Lock section is bored at the body of rod of bolt, flat circle disk, trapezoidal disc face, tapered disk face, first, lock is bored in the second brill lock section and first
Portion；And a depressed area is dug at the center of the first brill lock section by excavator；
Step 3: threading: rubbing thread and circle tooth on the body of rod of bolt using threading equipment；
Step 4: entire bolt is heat-treated；
Step 5: pickling: the bolt after tempering is placed in the hydrochloric acid that concentration is 5-7% and impregnates 10-15min, it is rear with clear
Water is cleaned, then being placed in concentration is to impregnate 5-8min in 1-2% phosphate solution, is finally cleaned with clear water；
Step 6: arranging: avoiding one layer of pure aluminum coating of spraying, pure aluminum coating coating thickness in bolt by spray equipment
It is 10 ± 5 μm.
Embodiment 1 and embodiment 2 are subjected to antirust test, the bolt of antirust agent will be smeared and smear the bolt of pure aluminum coating
It is immersed in the water 1-5s, is then taken out, is weighed after the evaporation of bolt surface moisture, is then put it into 5% sodium chloride solution and impregnate
It after 96 hours, weighs again, and calculates rate of corrosion, test result such as table 1:
Table 1
| Embodiment 1 | Embodiment 2 | |
| Rate of corrosion (%) | 9.14*10-6 | 4.90*10-5 |
By upper table it is found that the bolt impregnated by the way that antirust agent is added in Rustproofing apparatus, rust-proof effect is more preferable, passes through antirust
Device, the antirust coat for avoiding the formation of bolt is more uniform, and the antirust agent of technique preparation has good anticorrosive property.
Taper coiled hair weld bolt prepared by the technique bears larger screw-down torque, and bonding strength is high, tightening force ratio
It is larger, it is connected between feature, it is compact-sized, bolt fracture is prevented, its service life is increased.
It please refers to shown in Fig. 4, Rustproofing apparatus includes pedestal 9, cabinet 12 and rotating electric machine 20, the top of pedestal 9 in step 6
Portion is equipped with cabinet 12, and cabinet 12 is hollow structure, and the internal symmetry of cabinet 12 is equipped with two cylinders 11, and the top of cylinder 11 is solid
Surely it is connected with cylinder piston rod 17, two cylinder piston rods 17 are connect by link block 18 with hopper 16, and the inside of hopper 16 is set
It is equipped with filter screen 23, the bottom end of hopper 16 is provided with drainage conduit 10, and valve, the top of cabinet 12 are provided in drainage conduit 10
Rotating electric machine 20 is installed, the bottom of rotating electric machine 20 is fixedly connected with shaft 19, and shaft 19 protrudes into inside cabinet 12 at center
It is connect at 21 center of connecting rod, 21 both ends of connecting rod are fixedly connected with cage 22.
Top one end of pedestal 9 is equipped with storage box 15, and the side of storage box 15 is fixedly connected with water pump 14, water pump 14
One end is connect with feed pipe 13, and feed pipe 13 is located at 16 top of hopper far from one end of water pump 14, is worked, will be deposited by water pump 14
The antirust agent stored in storage tank 15 is extracted into feed pipe 13, then is fed by feed pipe 13 to hopper 16.
Cage 22 can be put into hopper 16, and not contacted with filter screen 23, be rotated convenient for cage 22, and bolt is carried out
Coating.
Working principle: it is worked first by water pump 14, the antirust agent stored in storage box 15 is extracted into feed pipe 13, then lead to
It crosses feed pipe 13 to feed to hopper 16, while bolt being put into cage 22, pass through driving two cylinders 11 work, two gas
Cylinder 11 drives the elongation of two cylinder piston rods 17, and hopper 16 is pushed to rise, until antirust agent submerges entire cage 22, then drives
Rotating electric machine 20 works, and rotating electric machine 20 drives connecting rod 21 to rotate by shaft 19, and connecting rod 21 drives cage 22 to rotate, contracting
The time that lag bolt impregnates improves working efficiency and stops operating after a certain period of time, and cylinder 11 drives cylinder piston rod 17 to shrink,
To drive hopper 16 to decline, after bolt is air-dried or dried up, take out；
Hopper 16 is internally provided with filter screen 23, and since bolt surface contains dust, during immersion, dust can be into
Enter in antirust agent, filtered antirust agent by filter screen 23, and be discharged by drainage conduit 10, convenient for antirust agent will be recycled.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of taper coiled hair weld bolt, including the body of rod (1), which is characterized in that one end of the body of rod (1) is provided with plane
Disc face (3), the flat circle disk (3) are provided with trapezoidal disc face (2) far from the one end of the body of rod (1), the trapezoidal disk
Face (2) is provided with tapered disk face (8) far from the one end of flat circle disk (3), is from left to right successively arranged on the body of rod (1)
With the thread (4) of round spiral and circle tooth (41), the other end of the body of rod (1) is provided with the second brill lock section (5), and described the
Two, which bore lock section (5), is provided with the first brill lock section (6) far from the one end of the body of rod (1), and described first, which bores lock section (6), bores lock far from second
Depressed area (7) are provided at one end center in portion (5).
2. a kind of taper coiled hair weld bolt according to claim 1, which is characterized in that described first, which bores lock section (6), is in
Truncated cone-shaped, the second brill lock section (5) is cylindrical, and the second diameter for boring lock section (5) is 4.59-4.8mm, and described first bores lock section
(6) lock section (5) are bored with second to be arranged in 40-50 degree angle.
3. a kind of taper coiled hair weld bolt according to claim 1, which is characterized in that the tapered disk face (8) with
It is arranged between trapezoidal disc face (2) in 3.5-4.5 degree angle.
4. a kind of taper coiled hair weld bolt according to claim 1, which is characterized in that the trapezoidal disc face (2) is straight
Diameter is greater than the body of rod (1) diameter.
5. a kind of taper coiled hair weld bolt according to claim 1, which is characterized in that the length of the round tooth (41) is
2.3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920297487.2U CN209586906U (en) | 2019-03-07 | 2019-03-07 | A kind of taper coiled hair weld bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920297487.2U CN209586906U (en) | 2019-03-07 | 2019-03-07 | A kind of taper coiled hair weld bolt |
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| Publication Number | Publication Date |
|---|---|
| CN209586906U true CN209586906U (en) | 2019-11-05 |
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ID=68356491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920297487.2U Active CN209586906U (en) | 2019-03-07 | 2019-03-07 | A kind of taper coiled hair weld bolt |
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| Country | Link |
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| CN (1) | CN209586906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780030A (en) * | 2019-03-07 | 2019-05-21 | 安徽瑞泰汽车零部件有限责任公司 | A kind of taper coiled hair weld bolt and its processing technology |
-
2019
- 2019-03-07 CN CN201920297487.2U patent/CN209586906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780030A (en) * | 2019-03-07 | 2019-05-21 | 安徽瑞泰汽车零部件有限责任公司 | A kind of taper coiled hair weld bolt and its processing technology |
| CN109780030B (en) * | 2019-03-07 | 2023-10-20 | 安徽瑞泰汽车零部件有限责任公司 | Conical pan head welding bolt and processing technology thereof |
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