CN113217518A - Locknut and processing method thereof - Google Patents

Locknut and processing method thereof Download PDF

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Publication number
CN113217518A
CN113217518A CN202110698131.1A CN202110698131A CN113217518A CN 113217518 A CN113217518 A CN 113217518A CN 202110698131 A CN202110698131 A CN 202110698131A CN 113217518 A CN113217518 A CN 113217518A
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CN
China
Prior art keywords
locknut
face
spring
nut
nut body
Prior art date
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.)
Pending
Application number
CN202110698131.1A
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Chinese (zh)
Inventor
刘一博
刘铸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoji Xingshun Machinery Manufacturing Co ltd
Original Assignee
Baoji Xingshun Machinery Manufacturing Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoji Xingshun Machinery Manufacturing Co ltd filed Critical Baoji Xingshun Machinery Manufacturing Co ltd
Priority to CN202110698131.1A priority Critical patent/CN113217518A/en
Publication of CN113217518A publication Critical patent/CN113217518A/en
Pending legal-status Critical Current

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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
    • F16B37/00—Nuts or like thread-engaging members
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/284—Locking by means of elastic deformation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

The invention discloses a locknut and a processing method thereof, and the locknut comprises a nut body and a spring body arranged on the nut body, wherein one end in the nut body is provided with a thread, the other end is provided with a sinking platform drilling hole, the inner wall of the sinking platform drilling hole is a smooth surface, the spring body is arranged in the sinking platform drilling hole, and the outer ring of the spring body is fixedly connected with the end surface of the nut body. Because one end of the spring is directly and fixedly connected with the end face of the nut, an additional fixing structure is not needed, the mounting process is simple, the requirement on matching is not high, the body is formed by drilling on a sinking platform and assembling and welding the spring, the spring anti-loosening nut is suitable for automatic and large-scale production, the centering is free of deformation, the quality is stable, the anti-vibration anti-loosening limit of the spring anti-loosening nut is improved, and the production cost is greatly reduced.

Description

Locknut and processing method thereof
Technical Field
The invention relates to the technical field of machining parts, in particular to a locknut and a machining method thereof.
Background
In various industries such as railways, automobiles, electrical, mechanical, shipbuilding, buildings, steel and the like, basic threaded nut fittings are used, and threaded connection and nut locking are the most common mechanical connection methods, but common standard fasteners are often loosened, dropped and lost under the conditions of high-speed operation or strong vibration, so that equipment or parts in work are subjected to mechanical failure, and danger is caused.
In the prior art, in order to prevent looseness, a high-load nut utilizes the spring characteristic of a structure integrated with the nut, and the problem that the nut is easy to loosen and fall is fundamentally solved, but when the nut is used for spring fixing, a spring retainer needs to be arranged, the matching requirement of a body and the spring retainer is high, the spring retainer is produced by a thin-wall seamless tube with the wall thickness of 0.3/0.4, the material limit of a pull tube is exceeded, the cost is high, the forming size of the retainer is strictly required, the riveting method is strictly required due to the difference generated by the material tolerance, the inaccurate positioning of the spring and the deformation interference of the retainer can be slightly caused due to carelessness, the production method is complicated, and the batch production is difficult to realize.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings, an object of the present invention is to provide a locknut and a method for manufacturing the locknut.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a locknut, includes the nut body and installs in the spring body of nut body, this internal one end of nut is provided with the screw thread, and the other end is provided with heavy platform drilling, heavy platform drilling inner wall is the smooth surface, the spring body is installed in heavy platform drilling, the outer lane of the spring body and the terminal surface fixed connection of nut body.
The end face of the nut body is a plane end face or a sinking platform end face with a sinking platform, and the depth of the sinking platform end face is equal to or less than the thread pitch; the outer ring of the spring body is fixed on the plane end face or the sinking platform end face.
The outer ring of the spring body is fixed with the inner wall of the sinking platform on the end face of the sinking platform.
The outer ring of the spring body is fixed with the outer wall of the sinking platform on the end face of the sinking platform.
The fixed connection is welding.
The diameter of the spring body is equal to the diameter of the threaded end.
The spring body is provided with the dismantlement handle with sinking platform drilling contact end.
A locknut processing method comprises the following steps:
1) the nut body is processed, so that threads are arranged at one end in the nut body, a counter sink drilling hole is formed at the other end in the nut body, the inner wall of the counter sink drilling hole is a smooth surface, the end surface of the nut body is a plane end surface or a counter sink end surface with a counter sink, and the depth of the counter sink end surface is equal to or less than the thread pitch of the threads;
2) fixing the nut body through a clamp, then installing the spring body in the nut body through an installation clamp, and performing positioning limitation;
3) and welding the outer ring of the spring body with the end face of the nut body.
The outer ring of the spring body is welded with the inner wall or the outer part of the end face of the sinking platform of the nut body.
The welding mode is spot welding or full welding.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a locknut, which is characterized in that a spring body is arranged in a nut body, when a screw is installed in a matched mode, the locknut is completely the same as a common nut in use method, the locknut can be installed by using a tool required by installation of the common nut, due to the clamping effect of a spring and the integral installation of the spring and the nut, the looseness and the falling of the nut are completely prevented by utilizing the spring characteristic of an integral structure with the nut, in addition, one end of the spring is directly and fixedly connected with the end face of the nut body, an additional fixing structure is not required, the installation process is simple, the matching requirement is not high, the body is formed by drilling a sinking platform and assembling and welding the spring, and the locknut is suitable for automatic and large-scale production, is centered, has no deformation and stable quality, improves the anti-seismic anti-looseness limit of the locknut and greatly reduces the production cost.
Furthermore, the invention also provides a locknut processing method, which directly sets a sinking platform for drilling a hole on the nut, and then directly carries out an integrated welding process on the spring body and the nut body through the processing process.
Drawings
FIG. 1 is a first schematic structural view of a locknut of the present invention;
FIG. 2 is a first sectional view of the locknut structure of the present invention;
FIG. 3 is a second schematic structural view of the locknut of the present invention;
FIG. 4 is a second sectional view of the locknut structure of the present invention;
FIG. 5 is a schematic view of a locknut of the present invention
FIG. 6 is a third sectional view of the locknut structure of the present invention;
fig. 7 is a flow chart of a processing method of the locknut of the present invention.
In the drawings, 1 — the nut body; 2-a spring body; 3, drilling a sinking platform; 4-end face; 11-a screw thread; 21-a removal handle; 41-plane; 42-end face of sinking platform.
Detailed Description
The present invention will now be described in detail with reference to the drawings, wherein the described embodiments are only some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
As shown in fig. 1 and 2, the invention provides a locknut, which comprises a nut body 1 and a spring body 2 arranged on the nut body 1, wherein a thread 11 is arranged at one end in the nut body 1, a counter bore hole 3 is arranged at the other end, the inner wall of the counter bore hole 3 is a smooth surface, the spring body 2 is arranged in the counter bore hole 3, and the outer ring of the spring body 2 is fixedly connected with an end surface 4 of the nut body 1.
Specifically, the end face 4 of the nut body 1 is a planar end face 41 or a counter sink end face 42 with a counter sink, and the depth of the counter sink end face 42 is equal to or less than the thread pitch; the outer ring of the spring body 2 is fixed on the plane end face 41 or the sinking platform end face 42.
In the present invention, a person skilled in the art uses a clamp to fix the outer end of the spring body 2 to the end surface 4 of the nut body 1, and the present invention is described by taking this as an example, but the specific fixing method is not limited thereto, and other fixing connection methods also belong to the protection scope of the present invention.
Further, in order to fix the nut body more accurately and precisely, the end face of the nut body 1 is provided with an integrated sunken table end face 42, and the outer end of the spring body 2 is fixedly welded on the sunken table end face 42.
Specifically, the outer end of the spring body 2 and the end face 4 of the spring body have three fixed connection modes:
in the first way, as shown in fig. 1 and 2, the outer end of the spring body 2 is fixedly welded to the end face of the planar end face 41. The fixing method of the mode enables the spring to be simple in structure, extra processing is not needed, the spring and the end face only need to be positioned and then welded, and the operation process is simple and convenient.
In a second mode, as shown in fig. 3 and 4, the outer end of the spring body 2 is fixedly welded to the inner wall of the sinking platform end face 42. The fixing method of the mode enables the spring to be simple in structure, does not need extra processing, and only needs to position the spring and the inner wall of the sinking platform end face 42 and then weld the spring and the sinking platform end face 42, and the operation process is simple and convenient.
The third way is as shown in fig. 5 and 6, the outer end of the spring body 2 is fixedly welded with the outer wall of the sinking platform end face 42. This mode only needs the outermost circle card of spring and at the outer wall of heavy platform terminal surface 42, then weld can, this mode makes the spring body fix easily and spacing, the welding of being convenient for.
The nut body 1 adopts a structure which can be disassembled by using a general tool, can be repeatedly used, replaces the existing product, and reduces the maintenance cost. The locknut is mounted and dismounted without special skills and can be mounted and dismounted by a universal tool, so that the dismounting handle 21 is arranged at the contact end of the spring body 2 and the sinking platform drilling hole 3. Dismantle the handle 21 and be connected with the inner circle of spring body 2 to lead out outside nut body 1, form the dismantlement handle 21 that can promote, when needs are dismantled, promote and dismantle handle 21, make the direct increase of spring body 2 inner circle, with the thread separation on the screw rod, conveniently dismantle nut body 1. Illustratively, the detachment handle 21 may be an arc hook detachment handle or a straight detachment handle.
In addition, as shown in fig. 7, the invention also provides a locknut processing method, which comprises the following steps:
1) the nut body 1 is machined, so that threads 11 are arranged at one end in the nut body 1, a counter sink drilling hole 3 is arranged at the other end, the inner wall of the counter sink drilling hole 3 is a smooth surface, the end surface 4 of the nut body 1 is a plane end surface 41 or a counter sink end surface 42 with a counter sink, and the depth of the counter sink end surface 42 is smaller than the thread pitch;
2) fixing the nut body 1 through a clamp, then installing the spring body 2 in the nut body 1 through an installation clamp, and performing positioning limitation;
3) and welding the outer ring of the spring body 2 and the end surface 4 of the nut body 1. Specifically, the outer ring of the spring body 2 is welded to the planar end surface 41 or the counter end surface 42 of the nut body 1.
In the present invention, the end face 4 of the nut body 1 is provided with an integrated sink table end face 42 during processing, and the outer end of the spring body 2 is fixedly welded to the sink table end face 42, which specifically includes: the outer ring of the spring body 2 is fixedly welded with the inner wall of the sinking platform end face 42 or the outer ring of the spring body 2 is fixedly welded with the outer wall of the sinking platform end face 42. The welding mode is spot welding or full welding.
The working process of the invention is as follows:
installation: the nut body 1 and the spring body 2 are fixedly installed to obtain the locknut, when the locknut is installed on the screw rod, the locknut is normally screwed up and installed, the threads 11 on the nut body 1 are matched with the threads on the screw rod, and the spring body 2 is further clamped and fixed with the threads on the screw rod to prevent the nut from loosening and falling.
Disassembling: the disassembly handle 21 is pushed, so that the inner ring of the spring body connected with the disassembly handle 21 is expanded, the spring body is separated from the thread on the screw rod, clamping is released, and the nut can be normally disassembled.
The locknut is designed by a unique structure and process in the market, so that the cost is low and the market competitiveness is strong. The spring locknut is free of a retainer, low in matching requirement, and suitable for automatic and large-scale production, and is characterized in that the body is formed by drilling on a sinking platform and assembling and welding the spring.
It will be appreciated by those skilled in the art that the above embodiments are merely preferred embodiments of the invention, and thus, modifications and variations may be made in the invention by those skilled in the art, which will embody the principles of the invention and achieve the objects and objectives of the invention while remaining within the scope of the invention.

Claims (10)

1. The utility model provides a locknut, its characterized in that includes nut body (1) and installs in the spring body (2) of nut body (1), one end is provided with screw thread (11) in nut body (1), and the other end is provided with heavy platform drilling (3), heavy platform drilling (3) inner wall is the smooth surface, spring body (2) are installed in heavy platform drilling (3), the outer lane of spring body (2) and terminal surface (4) fixed connection of nut body (1).
2. The locknut of claim 1, characterized in that the end face (4) of the nut body (1) is a planar end face (41) or a counter end face (42) with a counter and the depth of the counter end face (42) is equal to or less than the thread pitch; the outer ring of the spring body (2) is fixed on the plane end face (41) or the sinking platform end face (42).
3. The locknut of claim 2, characterized in that the outer ring of the spring body (2) is fixed to the inner wall of the counter end face (42).
4. The locknut of claim 2, characterized in that the outer ring of the spring body (2) is fixed with the outer wall of the sinking platform end face (42).
5. The locknut of any one of claims 1-4, wherein the fixed connection is a weld.
6. Locknut according to claim 1 or 2, characterized in, that the diameter of the spring body (2) is equal to the diameter of the threaded (11) end.
7. The locknut of claim 1 or 2, characterized in that the end of the spring body (2) in contact with the counter bore (3) is provided with a disassembly shank (21).
8. The locknut processing method based on claim 1, characterized by comprising the following steps:
1) the nut body (1) is processed, so that a thread (11) is arranged at one end in the nut body (1), a sunk table drilling hole (3) is formed in the other end of the nut body (1), the inner wall of the sunk table drilling hole (3) is a smooth surface, the end surface (4) of the nut body (1) is a plane end surface (41) or a sunk table end surface (42) with a sunk table, and the depth of the sunk table end surface (42) is smaller than the thread pitch;
2) the nut body (1) is fixed through a clamp, and then the spring body (2) is installed in the nut body (1) through an installation clamp and is positioned and limited;
3) and welding the outer ring of the spring body (2) with the end face (4) of the nut body (1).
9. The locknut processing method according to claim 8, further comprising welding an outer ring of the spring body (2) with an inner wall or an outer portion of the counter end face (42) of the nut body (1).
10. The locknut processing method according to claim 8 or 9, wherein the welding manner is spot welding or full welding.
CN202110698131.1A 2021-06-23 2021-06-23 Locknut and processing method thereof Pending CN113217518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110698131.1A CN113217518A (en) 2021-06-23 2021-06-23 Locknut and processing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110698131.1A CN113217518A (en) 2021-06-23 2021-06-23 Locknut and processing method thereof

Publications (1)

Publication Number Publication Date
CN113217518A true CN113217518A (en) 2021-08-06

Family

ID=77081047

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110698131.1A Pending CN113217518A (en) 2021-06-23 2021-06-23 Locknut and processing method thereof

Country Status (1)

Country Link
CN (1) CN113217518A (en)

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