CN111843759A

CN111843759A - Bolt chamfering device

Info

Publication number: CN111843759A
Application number: CN202010502591.8A
Authority: CN
Inventors: 李春明; 时付山; 于凯; 田延荣; 官为民; 董爱民; 杨雪莲; 张坤; 白秀林; 张营; 王志强; 沈涛
Original assignee: Ningjin Power Supply Co Of State Grid Shandong Electric Power Co
Current assignee: Ningjin Power Supply Co Of State Grid Shandong Electric Power Co
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-10-30
Anticipated expiration: 2040-06-05
Also published as: CN111843759B

Abstract

The invention discloses a bolt chamfering device which comprises a connecting mechanism and a fixed seat, wherein a lower fixing piece is arranged on the connecting mechanism, a grinding mechanism is arranged on the lower fixing piece, an upper fixing piece is arranged at the bottom of the fixed seat, one end of the grinding mechanism is arranged on the lower fixing piece, the other end of the grinding mechanism is arranged on the upper fixing piece, a groove is formed in the top of the fixed seat, and an internal bolt is arranged inside the groove. The bolt riveting and cutting device can be connected with an electric wrench to grind and cut the riveted part of the bolt, so that the bolt is taken out for secondary use, resources are greatly saved, the connecting mechanism can be adjusted according to the size of the bolt, the application range is wider, the bolts are ground in turn through a plurality of grinding mechanisms, the damage to each grinding mechanism is greatly reduced, the service life of each grinding mechanism is prolonged, and the grinding efficiency can be ensured.

Description

Bolt chamfering device

Technical Field

The invention belongs to the technical field of power equipment, and particularly relates to a bolt chamfering device.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts; the fastener consists of a head part and a screw (a cylinder with external threads), and is matched with a nut and used for fastening and connecting two parts with through holes; this form of connection is called a bolted connection; if the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

Can use the bolt fastening often in the power supply process, in order to prevent that the in-process that uses leads to the nut to drop owing to the vibration, generally adopt riveted form, when needs are dismantled, need cut the nut through the cutting machine, just can take out, the nut after cutting will be abandoned, has caused waste greatly.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a bolt chamfering device which can be connected with an electric wrench to grind and cut the riveted part of a bolt, so that the bolt is taken out for secondary use, resources are greatly saved, a connecting mechanism can be adjusted according to the size of the bolt, the application range is wider, the bolt is ground in turn by a plurality of grinding mechanisms, the damage to each grinding mechanism is greatly reduced, the service life of each grinding mechanism is prolonged, and the grinding efficiency can be ensured.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a bolt chamfering device, includes coupling mechanism, fixing base, installs down the mounting on coupling mechanism, install grinding mechanism down on the mounting, install the mounting in the bottom of fixing base, the one end of grinding mechanism is installed under on the mounting, the other end is installed on last mounting, open flutedly at the top of fixing base, be equipped with interior bolt in the inside of recess.

Preferably, coupling mechanism includes a plurality of arc connecting pieces end to end, and the arc connecting piece includes the connecting piece body, the connecting piece body is cavity structure, and the one end fixed mounting of connecting piece body has the spliced pole, and it has the through-hole to open at the other end of connecting piece body, it has the mounting hole to open on the spliced pole, the spliced pole is installed at the other end of another arc connecting piece body, and connects and still matches with the through-hole on that mounting hole and another arc connecting piece, is equipped with the bolt in the mounting hole, and the bolt cooperatees with the nut, through-hole department opens there is the countersunk groove, and the countersunk groove cooperatees with the bolt, and coupling mechanism can adjust as required, has greatly increased the device's application scope, has improved the device's value.

Preferably, grind the mechanism and including grinding axle, first grinding blade, second grinding blade, first limiting plate, second limiting plate, it has two third bar grooves to grind epaxial opening, first grinding blade and second grinding blade are installed at grinding epaxially to cooperate with two third bar grooves, first limiting plate is installed in one side of first grinding blade, install first fastener on first limiting plate install one side at second grinding blade on the second limiting plate, install the second fastener at second limiting plate mountain, have the rubber pad at the internally mounted of first limiting plate and second limiting plate, and first fastener and second fastener cooperate, grind the mechanism and be used for grinding the cutting to the bolt of riveting to can take out the bolt smoothly, carry out the secondary use, improve resource utilization greatly.

Preferably, the first grinding blade and the second grinding blade are of the same structure, the first grinding blade comprises an arc-shaped fixing plate, a grinding piece and a limiting column, the grinding piece is installed on the outer side of the arc-shaped fixing plate, the limiting column is installed on the inner side of the arc top fixing plate and matched with a third strip-shaped groove in the grinding shaft, the first grinding blade and the second grinding blade are used for grinding and cutting the riveted bolt, the bolt is guaranteed to be smoothly taken down, and the working efficiency of the device is greatly improved.

Preferably, first limiting plate and second limiting plate adopt the same structure, have all opened the spacing groove at the upper and lower both ends of first limiting plate, the spacing groove cooperatees with first fastener, second fastener, and it has spacing hole to open at the middle part of first spacing groove, spacing hole with grind sword on the first grinding blade and cooperate, it has the arc wall to open in the inboard of first limiting plate, the arc wall with arc fixed plate on the first grinding blade cooperatees, and first limiting plate and second limiting plate are used for restricting the removal of first grinding blade and second grinding blade to the stability of first grinding blade and second grinding blade has been guaranteed, thereby has improved the device's work efficiency greatly.

Preferably, first fastener includes two arc pieces, pivot and fixed axle, two arc pieces are arranged from top to bottom, the one end at two arc pieces is installed in the pivot, and the upper and lower both ends of pivot run through two arc pieces to install on the upper and lower two inner walls of spacing groove on first limiting plate, and rotate with first limiting plate and be connected, the both ends fixed mounting of fixed axle has first bar groove at the other end of two arc pieces, and the one end that is close to the pivot on two arc pieces is opened, first bar groove cooperatees with the second fastener, and first fastener is used for cooperateing with the second fastener, fixes first limiting plate and second limiting plate on grinding shaft, grinds first blade and second and grinds the blade and restricts, has guaranteed the device's normal work, has improved grinding efficiency.

Preferably, the second fastener includes arc, axis of rotation fixed mounting is in the one end of arc, and the both ends of axis of rotation are installed on two inner walls of spacing groove on the second limiting plate to rotate with the second limiting plate and be connected, and cooperate with the first bar groove on the first fastener, it has the second bar groove to open in the one end inboard of arc, the pivot on second bar groove and the first fastener cooperatees, and it has the fixed slot to open in the outside of the arc other end, the fixed slot with fixed axle on the first fastener cooperatees, and the second fastener cooperatees with first fastener, has guaranteed the stability of first limiting plate and second limiting plate, thereby reaches the effect of fixed first grinding blade and second grinding blade, has guaranteed the normal work of first grinding blade and second grinding blade, has improved work efficiency.

Preferably, first fastener and second fastener all are equipped with two to with two spacing groove one-to-one on first limiting plate and the second limiting plate, first fastener and second fastener can only be fixed with first limiting plate and second limiting plate, have guaranteed the stability of first grinding blade and second grinding blade, have improved grinding efficiency, have guaranteed work efficiency.

Preferably, the lower fixing part is provided with a plurality of, and a plurality of upper fixing parts are fixedly mounted on the connecting mechanism, the upper fixing part is provided with a plurality of, and a plurality of upper fixing parts and a plurality of lower fixing parts one-to-one, grind the mechanism and be equipped with a plurality ofly, a plurality of grinding mechanism and upper fixing part, lower fixing part and upper fixing part are used for fixed grinding mechanism, guarantee that grinding mechanism can normally work, have guaranteed the device's stability, have improved work efficiency.

The invention has the beneficial effects that:

1) this device can grind the cutting through being connected with electric spanner to bolt riveting department to take out the bolt, carry out the secondary and use, practiced thrift the resource greatly, coupling mechanism can adjust according to the size of bolt, and application scope is wider, grinds the bolt in turn through a plurality of grinding mechanism, greatly reduced to every damage of grinding mechanism, improved the life who grinds the mechanism, and can guarantee grinding efficiency.

2) The connecting mechanism of the device can be adjusted as required, so that the application range of the device is greatly enlarged, and the utilization value of the device is improved.

3) The grinding mechanism of the device is used for grinding and cutting the riveted bolt, so that the bolt can be smoothly taken out for secondary use, and the resource utilization rate is greatly improved; first grinding blade includes arc fixed plate, grinds piece and spacing post, grind the outside that the piece was installed at arc fixed plate, spacing post is installed in the inboard of arc top fixed plate, and with grind epaxial fixed slot and cooperate, first grinding blade and second grinding blade are used for grinding the cutting to the bolt of riveting, guarantee that the bolt can take off smoothly, have improved the device's work efficiency greatly.

4) The upper and lower both ends of the first limiting plate of this device are all opened there is the spacing groove, the spacing groove cooperatees with first fastener, second fastener, and it has spacing hole to open at the middle part of first spacing groove, spacing hole with grinding sword on the first grinding blade cooperatees, and it has the arc wall to open in the inboard of first limiting plate, the arc wall with arc fixed plate on the first grinding blade cooperatees, and first limiting plate and second limiting plate are used for restricting the removal of first grinding blade and second grinding blade to first grinding blade and second grinding blade's stability has been guaranteed, thereby has improved the device's work efficiency greatly.

5) The first fastening piece is matched with the second fastening piece, the first limiting plate and the second limiting plate are fixed on the grinding shaft, and the first grinding blade and the second grinding blade are limited, so that the normal work of the device is ensured, and the grinding efficiency is improved; the second fastener matches with first fastener, has guaranteed the stability of first limiting plate and second limiting plate to reach the effect of fixed first grinding blade and second grinding blade, guaranteed the normal work of first grinding blade and second grinding blade, improved work efficiency.

6) The fixing piece is equipped with a plurality ofly under this device, and a plurality ofly goes up fixing piece fixed mounting on coupling mechanism, it is equipped with a plurality ofly to go up the fixing piece, goes up the fixing piece and is equipped with a plurality ofly, and a plurality ofly grinds mechanism and last fixing piece, lower fixing piece one-to-one, and lower fixing piece and last fixing piece are used for the fixed mechanism of grinding, guarantee to grind the mechanism and can normally work, have guaranteed the device's stability, have improved work efficiency.

Drawings

FIG. 1 is a schematic structural view of a bolt chamfering device according to the present invention.

FIG. 2 is a bottom view of a bolt chamfering apparatus according to the present invention.

Fig. 3 is an exploded view of a connecting mechanism in a bolt chamfering apparatus according to the present invention.

Fig. 4 is an exploded view of a first abrasive tip in a bolt chamfering apparatus according to the present invention.

FIG. 5 is a schematic view of a first limiting plate mechanism in the bolt chamfering apparatus according to the present invention.

FIG. 6 is a schematic view of the interior of a first limiting plate in the bolt chamfering apparatus according to the present invention.

FIG. 7 is a schematic view of a first fastener structure of a bolt chamfering apparatus according to the present invention.

FIG. 8 is a schematic view of the structure of the grinding member in the bolt chamfering apparatus according to the present invention.

FIG. 9 is a schematic view of a second fastener of the bolt chamfering apparatus according to the present invention.

In the figure: 1. a connecting mechanism; 101. mounting holes; 102. connecting columns; 103. a connector body; 104. a bolt; 105. a through hole; 106. a countersunk groove; 107. a nut; 2. a grinding mechanism; 201. a first limit plate; 2011. a limiting groove; 2012. a limiting hole; 2013. an arc-shaped slot; 202. a first fastener; 2021. a fixed shaft; 2022. an arc-shaped column; 2023. a rotating shaft; 2024. a first bar-shaped groove; 203. a first abrasive blade; 2031. a grinding member; 2032. an arc-shaped fixing plate; 2033. a limiting column; 204. grinding the shaft; 205. a second fastener; 2051. fixing grooves; 2052. an arc-shaped plate; 2053. a rotating shaft; 2054. a second strip groove; 206. a second limiting plate; 207. a second abrasive blade; 208. a third strip groove; 3. a fixed seat; 4. An inner bolt; 5. an upper fixing member; 6. and a lower fixing member.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 9, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

A bolt chamfering device comprises a connecting mechanism 1 and a fixed seat 3, wherein a lower fixed part 6 is installed on the connecting mechanism 1, a grinding mechanism 2 is installed on the lower fixed part 6, an upper fixed part 5 is installed at the bottom of the fixed seat 3, one end of the grinding mechanism 2 is installed on the lower fixed part 6, the other end of the grinding mechanism 2 is installed on the upper fixed part 5, a groove is formed in the top of the fixed seat 3, and an inner bolt 4104 is arranged inside the groove; the device can grind the cutting through being connected with electric spanner to bolt 104 riveting department to taking out bolt 104, carrying out the secondary and using, practiced thrift the resource greatly, coupling mechanism 1 can be adjusted according to bolt 104's size, and application scope is wider, grinds bolt 104 in turn through a plurality of grinding mechanism 2, greatly reduced to every damage of grinding mechanism 2, improved grinding mechanism 2's life, and can guarantee grinding efficiency.

The connecting mechanism 1 comprises a plurality of arc-shaped connecting pieces which are connected end to end, each arc-shaped connecting piece comprises a connecting piece body 103, each connecting piece body 103 is of a cavity structure, a connecting column 102 is fixedly mounted at one end of each connecting piece body 103, a through hole 105 is formed in the other end of each connecting piece body 103, a mounting hole 101 is formed in each connecting column 102, each connecting column 102 is mounted at the other end of each arc-shaped connecting piece body 103, the connecting columns are connected and clamped to the corresponding mounting holes 101 to be matched with the through holes 105 in the other arc-shaped connecting pieces, bolts 104 are arranged in the mounting holes 101 and matched with nuts 107, countersunk grooves 106 are formed in the positions of the through holes 105 and matched with the bolts 104, the connecting mechanism 1 can be adjusted as required, the application range of the device is greatly enlarged, and the utilization value of the device.

The countersunk grooves 106 are attractive in appearance, can protect the bolts 104 and the nuts 107, prevent the bolts 104 and the nuts 107 from being worn in the working process, ensure the stability of the device and prolong the service life of the device.

The grinding mechanism 2 comprises a grinding shaft 204, a first grinding blade 203, a second grinding blade 207, a first limiting plate 201 and a second limiting plate 206, wherein two third strip-shaped grooves 208 are formed in the grinding shaft 204, the first grinding blade 203 and the second grinding blade 207 are installed on the grinding shaft 204 and matched with the third strip-shaped grooves 208, the first limiting plate 201 is installed on one side of the first grinding blade 203, a first fastening piece 202 is installed on the first limiting plate 201, a second fastening piece 205 is installed on the second limiting plate 206 and installed on one side of the second grinding blade 207, rubber pads are installed inside the first limiting plate 201 and the second limiting plate 206, the first fastening piece 202 is matched with the second fastening piece 205, the grinding mechanism 2 is used for grinding and cutting the riveted bolt 104, so that the bolt 104 can be smoothly taken out for secondary use, greatly improving the resource utilization rate.

The first grinding blade 203 and the second grinding blade 207 adopt the same structure, the first grinding blade 203 comprises an arc-shaped fixing plate 2032, a grinding piece 2031 and a limiting column 2033, the grinding piece 2031 is installed on the outer side of the arc-shaped fixing plate 2032, the limiting column 2033 is installed on the inner side of the arc top fixing plate and is matched with a third strip-shaped groove 208 on the grinding shaft 204, the first grinding blade 203 and the second grinding blade 207 are used for grinding and cutting the riveted bolt 104, the bolt 104 can be smoothly taken down, and the working efficiency of the device is greatly improved.

Wherein, spacing post 2033 cooperatees with the third bar groove 208 on grinding shaft 204, not only can prevent first grinding blade 203 and second grinding blade 207 gliding phenomenon from appearing in the course of the work, has guaranteed first grinding blade 203 and second grinding blade 207's stability moreover, has guaranteed the efficiency of grinding bolt 104, has improved work efficiency.

First limiting plate 201 and second limiting plate 206 adopt the same structure, have all opened the spacing groove 2011 at the upper and lower both ends of first limiting plate 201, spacing groove 2011 cooperatees with first fastener 202, second fastener 205, and it has spacing hole 2012 to open at the middle part of first spacing groove 2011, spacing hole 2012 with the grinding sword on the first grinding blade 203 cooperatees, and it has arc groove 2013 to open in the inboard of first limiting plate 201, arc groove 2013 with arc fixed plate 2032 on the first grinding blade 203 cooperatees, and first limiting plate 201 and second limiting plate 206 are used for restricting the removal of first grinding blade 203 and second grinding blade 207 to first grinding blade 203 and the stability of second grinding blade 207 have been guaranteed, thereby the device's work efficiency has been improved greatly.

The first fastening member 202 comprises two arc-shaped pieces, a rotating shaft 2023 and a fixed shaft 2021, the two arc-shaped pieces are arranged up and down, the rotating shaft 2023 is arranged at one end of the two arc-shaped pieces, the upper end and the lower end of the rotating shaft 2023 penetrate through the two arc-shaped pieces, and are mounted on the upper and lower inner walls of the limiting groove 2011 on the first limiting plate 201, and are rotatably connected with the first limiting plate 201, two ends of the fixed shaft 2021 are fixedly mounted on the other ends of the two arc-shaped members, a first strip-shaped groove 2024 is arranged at one end of the two arc-shaped pieces close to the rotating shaft 2023, the first linear groove 2024 is matched with the second fastener 205, the first fastener 202 is used for being matched with the second fastener 205, the first limit plate 201 and the second limit plate 206 are fixed on the grinding shaft 204, the first grinding blade 203 and the second grinding blade 207 are limited, so that the normal work of the device is ensured, and the grinding efficiency is improved.

The second fastening member 205 comprises an arc-shaped plate 2052 and a rotating shaft 2053, the rotating shaft 2053 is fixedly installed at one end of the arc-shaped plate 2052, two ends of the rotating shaft 2053 are installed on two inner walls of a limiting groove 2011 on the second limiting plate 206, and are rotatably connected with the second limiting plate 206 and matched with a first bar-shaped groove 2024 on the first fastening member 202, a second bar-shaped groove 2054 is formed on the inner side of one end of the arc-shaped plate 2052, the second bar-shaped groove 2054 is matched with a rotating shaft 2023 on the first fastening member 202, a fixing groove 2051 is formed on the outer side of the other end of the arc-shaped plate 2052, the fixing groove 2051 is matched with a fixing shaft 2021 on the first fastening member 202, the second fastening member 205 is matched with the first fastening member 202, so as to ensure the stability of the first limiting plate 201 and the second limiting plate 206, thereby achieving the effect of fixing the first grinding blade 203 and the second grinding blade 207 and ensuring the normal work of the first, the working efficiency is improved.

The first fastening piece 202 and the second fastening piece 205 are both provided with two limiting grooves 2011 which are in one-to-one correspondence with the first limiting plate 201 and the second limiting plate 206, and the first fastening piece 202 and the second fastening piece 205 can only fix the first limiting plate 201 and the second limiting plate 206, so that the stability of the first grinding blade 203 and the second grinding blade 207 is ensured, the grinding efficiency is improved, and the working efficiency is ensured.

Wherein, first limiting plate 201 and second limiting plate 206 cooperate first fastener 202 and second fastener 205 effect, fix first grinding blade 203 and second grinding blade 207 on grinding axle 204, under the cooperation of electric spanner and interior bolt 4104, drive the device motion, thereby make first grinding blade 203 and second grinding blade 207 around interior bolt 4104 motion, thereby carry out abrasive treatment to the inside bolt 104 of the device, the grinding quality has been improved and has been guaranteed grinding efficiency, grind the completion can be smooth take off bolt 104, carry out the secondary use, resource utilization has been improved greatly.

Lower mounting 6 is equipped with a plurality ofly, and a plurality ofly go up 5 fixed mounting on coupling mechanism 1, it is equipped with a plurality ofly to go up mounting 5, and a plurality ofly go up mounting 5 and a plurality of 6 one-to-ones down, grind mechanism 2 and be equipped with a plurality ofly, a plurality ofly grind mechanism 2 and last mounting 5, 6 one-to-ones down, lower mounting 6 and last mounting 5 are used for fixed grinding mechanism 2, guarantee that grinding mechanism 2 can normally work, have guaranteed the device's stability, have improved work efficiency.

During operation, at first according to the size of the big or small regulation coupling mechanism of bolt, guarantee that coupling mechanism can overlap on the bolt, then cooperate with the interior bolt on the fixing base through the hexagonal interface on the electric spanner, drive whole device and rotate, grind the piece on the mechanism and grind bolt riveting department at the pivoted in-process, treat to grind after accomplishing, take off the nut, can take out the bolt, can not cause the damage to the nut, can carry out the secondary and use, greatly increased resource utilization.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.

Claims

1. The utility model provides a bolt chamfering device, its characterized in that includes coupling mechanism, fixing base, installs lower mounting on coupling mechanism, install grinding mechanism down on the mounting, install the mounting in the bottom of fixing base, grinding mechanism's one end is installed under on the mounting, the other end is installed on last mounting, open flutedly at the top of fixing base, be equipped with interior bolt in the inside of recess.

2. The bolt chamfering device according to claim 1, wherein the connecting mechanism comprises a plurality of arc-shaped connecting pieces which are connected end to end, the arc-shaped connecting pieces comprise connecting piece bodies, each connecting piece body is of a cavity structure, a connecting column is fixedly mounted at one end of each connecting piece body, a through hole is formed in the other end of each connecting piece body, a mounting hole is formed in each connecting column, each connecting column is mounted at the other end of each other arc-shaped connecting piece body, the mounting hole which is used for connecting and grabbing the connecting column is matched with the through hole in each other arc-shaped connecting piece, a bolt is arranged in each mounting hole and matched with a nut, a countersunk groove is formed in each through hole, and each countersunk groove is matched with the bolt.

3. The bolt chamfering device according to claim 1, wherein the grinding mechanism includes a grinding shaft, a first grinding blade, a second grinding blade, a first limiting plate, and a second limiting plate, two third bar-shaped grooves are formed in the grinding shaft, the first grinding blade and the second grinding blade are mounted on the grinding shaft and matched with the two third bar-shaped grooves, the first limiting plate is mounted on one side of the first grinding blade, a first fastening piece is mounted on the first limiting plate, the second limiting plate is mounted on one side of the second grinding blade, a second fastening piece is mounted on the second limiting plate, rubber pads are mounted inside the first limiting plate and the second limiting plate, and the first fastening piece and the second fastening piece are matched with each other.

4. The bolt chamfering device according to claim 3, wherein the first grinding blade and the second grinding blade have the same structure, the first grinding blade includes an arc-shaped fixing plate, a grinding member and a limiting post, the grinding member is mounted on the outer side of the arc-shaped fixing plate, and the limiting post is mounted on the inner side of the arc-shaped fixing plate and is matched with the third strip-shaped groove on the grinding shaft.

5. The bolt chamfering device according to claim 3, wherein the first limiting plate and the second limiting plate have the same structure, limiting grooves are formed in the upper end and the lower end of the first limiting plate, the limiting grooves are matched with the first fastener and the second fastener, a limiting hole is formed in the middle of the first limiting groove, the limiting hole is matched with the grinding cutter on the first grinding blade, an arc-shaped groove is formed in the inner side of the first limiting plate, and the arc-shaped groove is matched with the arc-shaped fixing plate on the first grinding blade.

6. The bolt chamfering device according to claim 5, wherein the first fastening member comprises two arc-shaped members, a rotating shaft and a fixed shaft, the two arc-shaped members are arranged up and down, the rotating shaft is installed at one ends of the two arc-shaped members, the upper end and the lower end of the rotating shaft penetrate through the two arc-shaped members, the rotating shaft is installed on the upper inner wall and the lower inner wall of the limiting groove in the first limiting plate and is connected with the first limiting plate in a rotating mode, the two ends of the fixed shaft are fixedly installed at the other ends of the two arc-shaped members, a first strip-shaped groove is formed in one end, close to the rotating shaft, of the two arc-shaped members, and the first.

7. The bolt chamfering device according to claim 6, wherein the second fastener includes an arc-shaped plate and a rotating shaft, the rotating shaft is fixedly mounted at one end of the arc-shaped plate, two ends of the rotating shaft are mounted on two inner walls of a limiting groove on the second limiting plate and are rotatably connected with the second limiting plate and matched with the first strip-shaped groove on the first fastener, a second strip-shaped groove is formed in the inner side of one end of the arc-shaped plate and matched with the rotating shaft on the first fastener, a fixing groove is formed in the outer side of the other end of the arc-shaped plate, and the fixing groove is matched with the fixing shaft on the first fastener.

8. The bolt chamfering device according to claim 3, wherein there are two first fastening members and two second fastening members, and the two first fastening members and the two second fastening members correspond to the two limiting grooves of the first limiting plate and the second limiting plate one to one.

9. The bolt chamfering apparatus according to claim 1, wherein the lower fixture has a plurality of upper fixtures fixedly mounted on the connecting mechanism, the upper fixture has a plurality of upper fixtures corresponding to the lower fixtures one by one, the grinding mechanism has a plurality of grinding mechanisms corresponding to the upper fixtures and the lower fixtures one by one.