CN211951119U - Self-locking bolt - Google Patents
Self-locking bolt Download PDFInfo
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- CN211951119U CN211951119U CN202020096662.4U CN202020096662U CN211951119U CN 211951119 U CN211951119 U CN 211951119U CN 202020096662 U CN202020096662 U CN 202020096662U CN 211951119 U CN211951119 U CN 211951119U
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Abstract
The utility model provides a be applied to self-locking bolt in fastener technical field, self-locking bolt include bolt body (1), set up screw thread portion (2) on bolt body (1), screw thread portion (2) comprise multichannel screw thread (3), every screw thread (3) include screw thread top (4), screw thread left surface (5) and screw thread right flank (6), the screw thread top (4) of every screw thread (3) set up plane portion (7), the junction of plane portion (7) and screw thread left surface (5) set up left bulge portion (8), the junction of plane portion (7) and screw thread right flank (6) sets up right bulge portion (9), the utility model discloses a self-locking bolt, simple structure, it is with low costs, processing is simple, after the bolt is connected with adapting unit, can realize locking function, realizes self-locking function when the bolt receives the effect of vibration or the turning force, effectively improve the connection reliability and improve the overall safety of the equipment.
Description
Technical Field
The utility model belongs to the technical field of the fastener, more specifically say, relate to a self-locking bolt, the utility model discloses still relate to a self-locking bolt manufacturing method.
Background
The fastener bolt for the vehicle is a product with wide application fields. When automobile-used fastener bolt used, because some work occasion environment are abominable, the bolt can take place to become flexible after using a period owing to receive the effect of vibration or pivoted power to influence normal use, consequently cause equipment damage even, have serious risk.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the self-locking bolt is simple in structure, can achieve the anti-loosening function after the bolt is connected with the connecting part, achieves the self-locking function when the bolt is under the action of vibration or rotating force, effectively improves the connection reliability, and improves the overall safety of equipment.
To solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model relates to a self-locking bolt, self-locking bolt include the bolt body, set up screw thread portion on the bolt body, screw thread portion comprises multichannel screw thread, and every way screw thread includes screw thread top, screw thread left surface and screw thread right flank, and the screw thread top of every way screw thread sets up plane portion, plane portion set up left bulge with the joint portion of screw thread left surface, plane portion sets up right bulge with the joint portion of screw thread right flank.
The screw thread comprises a plane portion, a left bulging portion and a right bulging portion, wherein the plane portion, the left bulging portion and the right bulging portion form an automatic locking portion, the left side face of a screw thread and the right side face of the screw thread are of inverted V-shaped structures, each screw thread is provided with a plurality of plane portions according to gaps along the circumference of the screw thread, the combination portion of each plane portion and the left side face of the screw thread is provided with a left bulging portion, and the combination portion of each plane portion and the right side face of the screw thread is provided with a right bulging portion.
The screw thread portion on set up multichannel self-locking face, a plurality of self-locking portions that lie in the coplanar on the screw thread portion form one self-locking face, every self-locking face is arranged with bolt body central line parallel respectively.
The screw thread portion set up multichannel from the locking face along screw thread portion a week, form one from the locking face central plane between the locking face central line of every way self-locking face and the bolt body central line, the contained angle of the self-locking face central plane of every way self-locking face and adjacent one from the locking face central plane is angle isostructure.
The self-locking surface on the thread part of the self-locking bolt is a structure formed by applying pressure and pressing through a press-fitting component.
The utility model discloses still relate to a self-locking bolt manufacturing approach, self-locking bolt manufacturing approach's preparation step do: 1) the press-fitting component is controlled to descend and move towards the direction of the bolt body, pressure is applied to threads of the bolt body through the press-fitting component, the tops of the threads are pressed and deformed, one side of the top of the threads bulges towards the direction of the left side face of the threads to form a left bulge part, the other side of the top of the threads bulges towards the right side face of the threads to form a right bulge part, and a plane part is formed at the top of the threads, so that an automatic locking part is formed at one position of the threads; 2) lifting the press fitting part, loosening the bolt body, rotating the bolt body, applying pressure to the other position of the screw threads through the press fitting part, forming another self-locking part at the other position of the screw threads, and finishing the press manufacturing of the self-locking bolt; 3) and repeating the steps to finish the manufacture of the self-locking bolts in batches.
The bolt body is clamped tightly by the positioning part before the thread part of the bolt body is pressed by the press-fitting part, the end of the bolt rod part of the bolt body is positioned by the positioning part, the bolt body is fixed, and then pressure is applied to the thread part by the press-fitting part.
When pressure is applied to the thread part of the bolt body by the press fitting member, the press fitting member simultaneously acts on the plurality of threads when pressure is applied to the thread part by the press fitting member at a time, thereby forming a self-locking surface on the thread part.
Adopt the technical scheme of the utility model, can obtain following beneficial effect:
self-locking bolt, when the bolt of automobile-used fastener is designed or made, process spiral helicine screw thread portion on the bolt body after, through control pressure equipment part decline, move to bolt body direction, pressure equipment part is exerted pressure on the screw thread of bolt body, screw thread top pressurized deformation, screw thread top one side is bloated to screw thread left surface direction, form left bulge, screw thread top opposite side is bloated to screw thread right flank, form right bulge, screw thread top forms plane portion, thereby form an auto-lock portion in a position of screw thread, and pressure equipment part can be simultaneously simultaneous processing auto-lock portion on a plurality of screw threads, thereby form the auto-lock face. Such structure, when the thread of bolt and the thread cooperation of the part of supporting connection or equipment are connected, form interference fit between the thread to exert the locking force on the thread, make the bolt realize self-locking function, can not become flexible when receiving turning force or vibrational force, ensure bolted connection reliability, make the security and the reliability of the equipment that uses the bolt obtain promoting comprehensively. Auto-lock bolt, simple structure, it is with low costs, processing is simple, is connected the back at bolt and adapting unit, can realize locking function, realize auto-lock function when the bolt receives the effect of vibration or turning force, effectively improve the connection reliability, improve equipment overall safety nature.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic cross-sectional structural view of the self-locking bolt of the present invention;
FIG. 2 is a schematic cross-sectional view of the surface A-A of the self-locking bolt shown in FIG. 1;
in the drawings, the reference numbers are respectively: 1. a bolt body; 2. a threaded portion; 3. screw teeth; 4. the top of the screw thread; 5. the left side surface of the screw thread; 6. the right side surface of the screw thread; 7. a planar portion; 8. a left bulge; 9. a right bulge; 10. an auto-lock portion; 11. a self-locking surface; 12. the center line of the bolt body; 13. the center line of the self-locking surface; 14. a self-locking surface central plane; 15. a bolt head; 16. the threaded end of the bolt.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes, structures, mutual positions and connection relations of the components, the functions and operation principles of the components, and the like:
as shown in the accompanying drawings 1 and 2, the utility model relates to a self-locking bolt, self-locking bolt include bolt body 1, set up screw thread portion 2 on the bolt body 1, screw thread portion 2 comprises multichannel screw thread 3, and every thread 3 includes screw thread top 4, screw thread left surface 5 and screw thread right flank 6, and every thread 3's screw thread top 4 sets up plane portion 7, plane portion 7 and the joint portion of screw thread left surface 5 set up left bulge portion 8, plane portion 7 and the joint portion of screw thread right surface 6 set up right bulge portion 9. The structure is characterized in that when a bolt of the vehicle fastener is designed or manufactured, after a spiral thread part is machined on a bolt body, the press-fitting component is controlled to descend and move towards the direction of the bolt body 1, the press-fitting component applies pressure on the threads 3 of the bolt body 1, the thread tops 4 of the threads 3 deform under pressure, one side of each thread top 4 bulges towards the direction of the left side face 5 of each thread to form a left bulge part 8, the other side of each thread end 4 bulges towards the right side face 6 of each thread to form a right bulge part 9, the tops of the thread ends 4 form a plane part 7, so that an automatic locking part 10 is formed at one position of each thread 4, the press-fitting component can simultaneously self machine the automatic locking parts on a plurality of threads, a plurality of self locking parts form an automatic locking surface, and the bolt body is provided with a plurality of self locking surfaces along the circumference of the bolt body. Like this, when the thread of bolt is connected with the thread cooperation of the part of supporting connection or equipment, form interference fit between the thread to exert locking force on the thread, make the bolt realize self-locking function, can not become flexible when receiving turning force or vibrational force, ensure bolted connection reliability, make the security and the reliability of the equipment of using the bolt obtain promoting comprehensively. Auto-lock bolt, after bolt and adapting unit or equipment connection, can realize locking function, realize self-locking function when the bolt receives the effect of vibration or the turning force, effectively improve the connection reliability, improve equipment overall safety nature.
The thread cutting machine is characterized in that the plane portion 7, the left bulge portion 8 and the right bulge portion 9 form an automatic locking portion 10, the thread left side face 5 and the thread right side face 6 are of inverted V-shaped structures, each thread 3 is provided with a plurality of plane portions 7 along the thread 3 in a circle at intervals, a left bulge portion 8 is arranged at the joint portion of each plane portion 7 and the thread left side face 5, and a right bulge portion 9 is arranged at the joint portion of each plane portion 7 and the thread right side face 6. In the structure, the left side surface 5 of one thread and the right side surface 6 of the adjacent other thread are of inverted V-shaped cross sections, and each thread forms a left bulging part and a right bulging part which bulge after the force is applied by the press-fitting part. After the bolt is screwed with equipment or a part for screwing the bolt, the left bulge part and the right bulge part apply force on threads of the equipment or the part screwed with the bolt, so that interference fit between the left bulge part and the right bulge part is realized, and loosening can be effectively prevented in the using process.
The thread part 2 is provided with a plurality of self-locking surfaces 11, the plurality of self-locking parts 10 on the same plane on the thread part 2 form one self-locking surface 11, and each self-locking surface 11 is arranged in parallel with the central line 12 of the bolt body. Above-mentioned structure can be based on the performance requirement of the bolt that uses, processes out one or more from the locking face, and the face is also many from the locking, and the locking ability of taking off is stronger. When a plurality of self-locking surfaces are arranged, the plurality of self-locking surfaces are arranged along the bolt body in a circle at intervals, and the plurality of self-locking surfaces are equally distributed in the bolt body in a circle, so that the self-locking performance is improved.
The screw thread portion 2 set up multichannel auto-lock face 11 along 2 a week of screw thread portion, form one auto-lock face central plane 14 between the auto-lock face central line 13 of every auto-lock face 11 and bolt body central line 12, the contained angle of the auto-lock face central plane 14 of every auto-lock face 11 and adjacent one auto-lock face central plane 14 is the angle isostructure.
The self-locking surface 11 on the thread part 2 of the self-locking bolt is a structure formed by pressing a press-fitting part by applying pressure. By the structure, the self-locking surface can be conveniently and quickly processed, and the cost is not increased. The force and the size of the top 4 of the thread 3 and the size of the deformation caused by the compression during the processing are controlled, so that the method is safe and reliable.
The utility model discloses still relate to a step simply, with low costs, after the bolt is connected with equipment or adapting unit supporting with the bolt, can realize locking function, realize self-locking function when the bolt receives the effect of vibration or turning force, effectively improve the connection reliability, improve equipment or the whole safety's of part self-locking bolt preparation method.
The manufacturing steps of the self-locking bolt manufacturing method of the utility model are as follows: 1) the control part controls the press-fitting part to descend and move towards the direction of the bolt body 1, pressure is applied to the screw teeth 3 of the bolt body 1 through the press-fitting part, the screw tooth tops 4 of the screw teeth 3 are pressed to deform, one sides of the screw tooth tops 4 bulge towards the direction of the screw tooth left side faces 5 to form left bulge parts 8, the other sides of the screw tooth tops 4 bulge towards the screw tooth right side faces 6 to form right bulge parts 9, and the tops of the screw tooth tops 4 form plane parts 7, so that an automatic locking part 10 is formed at one position of the screw teeth 4; 2) lifting the press fitting component, loosening the bolt body 1, rotating the bolt body 2, applying pressure on the other position of the thread 3 through the press fitting component, forming another self-locking part 10 at the other position of the thread 3, and finishing the press manufacturing of the self-locking bolt; 3) and repeating the steps to finish the manufacture of the self-locking bolts in batches.
The utility model discloses a method, before the thread portion 2 of bolt body 1 through pressure equipment part applied pressure, press from both sides bolt body 1's bolt head 15 through locating component tightly, fix bolt body 1's bolt thread end 16 location through locating component, and then rethread pressure equipment part is exerted pressure on thread portion 2. When pressure is applied to the threaded portion 2 of the bolt body 1 by the press-fitting member, the press-fitting member simultaneously acts on the plurality of threads 3 when applying pressure to the threaded portion at a time, and a self-locking surface 11 is formed on the threaded portion 2.
Self-locking bolt, when the bolt of automobile-used fastener is designed or made, process spiral helicine screw thread portion on the bolt body after, through control pressure equipment part decline, move to bolt body direction, pressure equipment part is exerted pressure on the screw thread of bolt body, screw thread top pressurized deformation, screw thread top one side is bloated to screw thread left surface direction, form left bulge, screw thread top another side is bloated to screw thread right flank, form right bulge, screw thread top forms plane portion, thereby form an auto-lock portion in a position of screw thread, and pressure equipment part can be simultaneously simultaneous processing auto-lock portion on a plurality of screw threads, thereby form the auto-lock face. Such structure, when the thread of bolt and the thread cooperation of the part of supporting connection or equipment are connected, form interference fit between the thread to exert the locking force on the thread, make the bolt realize self-locking function, can not become flexible when receiving turning force or vibrational force, ensure bolted connection reliability, make the security and the reliability of the equipment that uses the bolt obtain promoting comprehensively. Auto-lock bolt, simple structure, it is with low costs, processing is simple, is connected the back at bolt and adapting unit, can realize locking function, realize auto-lock function when the bolt receives the effect of vibration or turning force, effectively improve the connection reliability, improve equipment overall safety nature.
The self-locking function is realized under the action of power, the connection reliability is effectively improved, and the overall safety of the equipment is improved.
The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the present invention can be implemented in various ways without modification, and the present invention is not limited by the above embodiments.
Claims (5)
1. A self-locking bolt is characterized in that: self-locking bolt include bolt body (1), set up screw thread portion (2) on bolt body (1), screw thread portion (2) comprise multichannel screw thread (3), every screw thread (3) are including screw thread top (4), screw thread left surface (5) and screw thread right flank (6), screw thread top (4) of every screw thread (3) set up plane portion (7), plane portion (7) set up left bulge portion (8) with the joint portion of screw thread left surface (5), plane portion (7) set up right bulge portion (9) with the joint portion of screw thread right flank (6).
2. The self-locking bolt of claim 1, wherein: plane portion (7), left side portion (8) of bulging, right side portion (9) of bulging form one from lock portion (10), screw tooth left surface (5) and screw tooth right flank (6) are the structure of falling V font for the cross-section, every way screw tooth (3) set up a plurality of plane portions (7) according to the clearance along screw tooth (3) a week, the joint portion of every plane portion (7) and screw tooth left surface (5) sets up a left side portion (8) of bulging, the joint portion of every plane portion (7) and screw tooth right flank (6) sets up a right side portion (9) of bulging.
3. The self-locking bolt of claim 1 or 2, wherein: the thread part (2) on set up multichannel from locking face (11), a plurality of self-locking portions (10) that lie in the coplanar on thread part (2) form one from locking face (11), every is from locking face (11) respectively with bolt body central line (12) parallel arrangement.
4. The self-locking bolt of claim 3, wherein: screw portion (2) set up multichannel from locking face (11) along screw portion (2) a week, form one from locking face central line (14) between self-locking face central line (13) of every way self-locking face (11) and bolt body central line (12), the contained angle of self-locking face central line (14) and adjacent one self-locking face central line (14) of every way self-locking face (11) is the angle isostructure.
5. The self-locking bolt of claim 3, wherein: the self-locking surface (11) on the thread part (2) of the self-locking bolt is a structure formed by pressing the pressing part by applying pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020096662.4U CN211951119U (en) | 2020-01-16 | 2020-01-16 | Self-locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020096662.4U CN211951119U (en) | 2020-01-16 | 2020-01-16 | Self-locking bolt |
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| Publication Number | Publication Date |
|---|---|
| CN211951119U true CN211951119U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020096662.4U Active CN211951119U (en) | 2020-01-16 | 2020-01-16 | Self-locking bolt |
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| CN (1) | CN211951119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237312A (en) * | 2020-01-16 | 2020-06-05 | 芜湖强振汽车紧固件有限公司 | Self-locking bolt and manufacturing method thereof |
-
2020
- 2020-01-16 CN CN202020096662.4U patent/CN211951119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237312A (en) * | 2020-01-16 | 2020-06-05 | 芜湖强振汽车紧固件有限公司 | Self-locking bolt and manufacturing method thereof |
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