CN113579948A

CN113579948A - Outer wall grinding device of cavity hexagonal spare

Info

Publication number: CN113579948A
Application number: CN202110963960.8A
Authority: CN
Inventors: 王瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-21
Filing date: 2021-08-21
Publication date: 2021-11-02

Abstract

The invention relates to the technical field of hardware processing accessories, in particular to an outer wall polishing device for a hollow hexagonal piece, which is simple in structure, and can automatically rotate the hardware by 60 degrees at a time in a polishing process so as to conveniently polish six surfaces of the hardware, improve the working efficiency and reduce the workload of an operator; the method comprises the following steps: the box body is hollow and the top of the box body is communicated with an opening; the hardware rotating mechanism is arranged in the box body and is used for rotating the hardware by 60 degrees at a time so as to polish different surfaces of the hardware conveniently; and the two groups of polishing mechanisms are symmetrically arranged at the top of the box body by taking the central line of the opening as an axis and are used for polishing two surfaces of the hardware at the same time.

Description

Outer wall grinding device of cavity hexagonal spare

Technical Field

The invention relates to the technical field of hardware processing accessories, in particular to an outer wall polishing device for a hollow hexagonal piece.

Background

Hardware is a tool obtained by processing and casting metal such as gold, silver, copper, iron, tin, etc., and is used for fixing, processing, decorating, etc.

As shown in figure 2, the hardware has a hexagonal bottom and a circular upper part, and is partially threaded, in the prior art, the outer wall of the position where the bottom is hexagonal needs to be polished, in the prior art, polishing is mostly performed in a manual mode, and in this mode, a user needs to rotate the hardware to polish different surfaces, so that the efficiency is low, and the workload of the user is increased.

In view of the above-mentioned existing defects, the inventor of the present invention has made extensive practical experience and professional knowledge for many years in designing and manufacturing such products, and has actively studied and innovated in cooperation with the application of the theory, in order to create a polishing device for the outer wall of a hollow hexagonal member, so as to make it more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.

Disclosure of Invention

In order to solve the technical problem, the invention provides the outer wall polishing device for the hollow hexagonal piece, which is simple in structure, and can automatically rotate the hardware by 60 degrees at a time in the polishing process so as to conveniently polish six surfaces of the hardware, improve the working efficiency and reduce the workload of an operator.

The invention discloses an outer wall grinding device for a hollow hexagonal piece, which comprises:

the box body is hollow and the top of the box body is communicated with an opening;

the hardware rotating mechanism is arranged in the box body and is used for rotating the hardware by 60 degrees at a time so as to polish different surfaces of the hardware conveniently;

and the two groups of polishing mechanisms are symmetrically arranged at the top of the box body by taking the central line of the opening as an axis and are used for polishing two surfaces of the hardware at the same time.

Preferably, the hardware rotating mechanism comprises a first cylinder fixed at the bottom in the box body, a connecting frame is fixedly connected to the output end of the first cylinder, a mounting ring is fixedly connected to the other end of the connecting frame, a first connecting shaft, a second connecting shaft and a third connecting shaft are rotatably mounted on the mounting ring through bearings, the first connecting shaft is fixedly connected with a first circular plate and a second circular plate, six sets of tooth-shaped structures are equidistantly mounted on the circumferential side wall of the first circular plate, two sets of anti-reverse mechanisms are equidistantly mounted on the second circular plate in a circumferential array manner, the third connecting shaft is rotatably connected with the bottom end of the first connecting shaft through bearings, a first gear and a ratchet wheel are fixedly connected onto the third connecting shaft, each anti-reverse mechanism comprises a connecting post and a supporting plate fixed at the bottom of the second circular plate, a pawl matched with the ratchet wheel is rotatably mounted on the connecting post, and a spring plate for resetting the position of the pawl is fixedly connected onto the supporting plate, the top of second connecting axle stretches out to the box outside along the opening, second connecting axle top is provided with the quadrilateral groove, slidable mounting has the mechanism of placing that is used for placing cavity hexagon hardware in the quadrilateral groove, fixedly connected with second gear on the second connecting axle, the number of teeth of every group dentate structure is the fourth of second gear number of teeth, and wherein the originated and the second gear engagement of a set of dentate structure, bottom fixedly connected with support in the box, fixedly connected with and first gear engagement's rack on the support, and rotatory 60 when rack number of teeth makes the gear remove, be provided with on the collar and be used for first damping mechanism and second damping mechanism.

Preferably, polishing mechanism is including fixing two sets of risers in the box inside, it installs the threaded rod to rotate on two sets of risers, threaded rod one end is provided with and is used for driving its rotatory hexagonal groove, threaded connection has the alignment jig on the threaded rod, fixedly connected with tripod on the alignment jig, the three angle department of tripod all rotates and installs the back shaft, the cover is equipped with the polishing belt on the three back shaft, and install the motor on the back shaft near the box tip, fixedly connected with platform on the tripod, the second cylinder is installed at the platform top, the push pedal is installed to second cylinder output, threaded connection has two sets of nuts on the threaded rod, the first track with alignment jig sliding connection is installed at the box top.

Preferably, the hardware rotating mechanism further comprises two groups of second rails fixed at the bottom in the box body and sliding blocks fixed on two sides of the bottom of the mounting ring, and each group of sliding blocks is in sliding fit with the second rails.

Preferably, first damping mechanism includes the first spacing ring with collar fixed connection, and slidable mounting has first damping rod on the first spacing ring, the first supporting ring of fixedly connected with on the first damping rod, and the cover is equipped with first pressure spring on the first damping rod, first pressure spring both ends respectively with first supporting ring and first spacing ring in close contact with, first damping rod is arc with first connecting axle laminating one end.

Preferably, the second damping mechanism comprises a second limiting ring fixedly connected with the mounting ring, a second damping rod is slidably mounted on the second limiting ring, a second support ring is fixedly connected to the second damping rod, a second pressure spring is sleeved on the second damping rod, two ends of the second pressure spring are in close contact with the second support ring and the second limiting ring respectively, and two ends of the second damping rod are in arc shape with two ends of the second connecting shaft in a fit mode.

Preferably, place the mechanism include with quadrilateral groove sliding fit's quadrangle pole to threaded connection has the fastening bolt who is used for fixed quadrangle pole on the second connecting axle, and quadrangle pole top fixedly connected with has spacing post, and fixedly connected with is used for placing the ring of placing of hardware on the spacing post, and the cover is equipped with the sponge circle on the spacing post.

Preferably, a telescopic rod used for improving the stability of the push plate is fixedly connected between the platform and the push plate.

Compared with the prior art, the invention has the beneficial effects that: two opposite faces of the hollow hexagon hardware are polished by the polishing mechanism, then the hollow hexagon hardware is rotated by the hardware rotating mechanism, and the rotation is 60 every time, after the rotation, two opposite faces of the hollow hexagon hardware are polished by the polishing mechanism, the hollow hexagon hardware is rotated by the hardware rotating mechanism again, finally two last opposite faces of the hollow hexagon hardware are polished by the polishing mechanism, in the present case, the hollow hexagon hardware can be automatically rotated, and the rotation is 60 every time, after the rotation is carried out for a single time, two opposite faces of the hardware are polished simultaneously, one hollow hexagon hardware can be polished for three times, the working strength of a user is reduced, and the polishing efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of hollow hexagonal hardware;

FIG. 3 is a top, rear, right side perspective view of the present invention;

FIG. 4 is a partial enlarged view of portion A of FIG. 3;

FIG. 5 is a top perspective view of the front side of the first cylinder, the link, the mounting ring, the first connecting shaft, the second connecting shaft, the first circular plate, the tooth-like structure, the first gear, the bracket, the rack, the second gear, the polishing mechanism, the support ring, the sponge ring, and the spacing post from the right;

FIG. 6 is a top perspective view of the front side of the first cylinder, the connecting bracket, the mounting ring, the first connecting shaft, the second connecting shaft, the first circular plate, the toothed structure, the first gear, the bracket, the rack, the second gear, the polishing mechanism, the support ring, the sponge ring, and the spacing post from the left;

FIG. 7 is a schematic right side view of the present invention showing the connection after the upper half of the case has been hidden;

FIG. 8 is a perspective view of FIG. 7;

FIG. 9 is a partial enlarged view of portion A of FIG. 8;

fig. 10 is a partially enlarged view of a portion B in fig. 8;

FIG. 11 is a schematic bottom view of the connection of the second connecting shaft, the third connecting shaft, the first circular plate, the second circular plate, the tooth-like structure, the ratchet wheel, the connecting column, the supporting plate, the pawl, the elastic piece and the second gear in the state of FIG. 7;

FIG. 12 is a front elevational view of the present invention shown in the attached position after concealing the front half of the case;

in the drawings, the reference numbers: 1. a box body; 2. an opening; 3. a first cylinder; 4. a connecting frame; 5. a mounting ring; 6. a first connecting shaft; 7. a second connecting shaft; 8. a third connecting shaft; 9. a first circular plate; 10. a second circular plate; 11. a tooth-shaped structure; 12. a first gear; 13. a ratchet wheel; 14. connecting columns; 15. a support plate; 16. a pawl; 17. a spring plate; 18. a second gear; 19. a support; 20. a rack; 21. a vertical plate; 22. a threaded rod; 23. an adjusting bracket; 24. a tripod; 25. a support shaft; 26. a polishing belt; 27. a motor; 28. a second cylinder; 29. pushing the plate; 30. a nut; 31. a first track; 32. a slider; 33. a second track; 34. a first limit ring; 35. a first damping lever; 36. a first support ring; 37. a first pressure spring; 38. a second stop collar; 39. a second damping rod; 40. a second support ring; 41. a second pressure spring; 42. a quadrilateral rod; 43. fastening a bolt; 44. a limiting column; 45. placing a ring; 46. a sponge ring; 47. a telescopic rod.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 12, the outer wall grinding device for a hollow hexagonal member according to the present invention includes:

the box body 1 is hollow inside and the top of the box body is communicated with an opening 2;

the hardware rotating mechanism is arranged in the box body 1 and is used for rotating the hardware by 60 degrees at a time so as to polish different surfaces of the hardware conveniently;

and the two groups of polishing mechanisms are symmetrically arranged at the top of the box body 1 by taking the central line of the opening 2 as an axis and are used for polishing two surfaces of hardware at the same time.

In this embodiment, polish two opposite faces of hollow hexagon hardware through polishing mechanism, rotate hollow hexagon hardware afterwards through hardware rotary mechanism, and rotate for 60 at every turn, after rotatory, polish two opposite faces of hollow hexagon hardware by polishing mechanism again, rotate hollow hexagon hardware through hardware rotary mechanism once more, polish two last opposite faces of hollow hexagon hardware by polishing mechanism at last, in the present case, can carry out autogiration to hollow hexagon hardware, and single is rotatory 60, after single is rotatory, polish two opposite faces of hardware simultaneously, a hollow hexagon hardware that finishes can polish to rotatory cubic, user's working strength has been reduced, efficiency of polishing is improved.

Further, as shown in fig. 2 to 12, the hardware rotating mechanism includes a first cylinder 3 fixed at the bottom inside the box 1, an output end of the first cylinder 3 is fixedly connected with a connecting frame 4, the other end of the connecting frame 4 is fixedly connected with a mounting ring 5, the mounting ring 5 is rotatably provided with a first connecting shaft 6, a second connecting shaft 7 and a third connecting shaft 8 through bearings, the first connecting shaft 6 is fixedly connected with a first circular plate 9 and a second circular plate 10, the circumferential side wall of the first circular plate 9 is equidistantly provided with six sets of tooth-shaped structures 11, the second circular plate 10 is circumferentially arrayed and equidistantly provided with two sets of anti-reverse mechanisms, the third connecting shaft 8 is rotatably connected with the bottom end of the first connecting shaft 6 through bearings, the third connecting shaft 8 is fixedly connected with a first gear 12 and a ratchet 13, the anti-reverse mechanism includes a connecting column 14 and a supporting plate 15 fixed at the bottom of the second circular plate 10, the connecting column 14 is rotatably provided with a pawl 16 matched with the ratchet 13, fixedly connected with is used for the shell fragment 17 that resets 16 positions of pawl in backup pad 15, the top of second connecting axle 7 stretches out to the box 1 outside along opening 2, second connecting axle 7 top is provided with the four-sided groove, slidable mounting has the mechanism of placing that is used for placing cavity hexagon hardware in the four-sided groove, fixedly connected with second gear 18 on the second connecting axle 7, the number of teeth of every group dentate structure 11 is the fourth of second gear 18 number of teeth, and wherein the originated and the second gear 18 meshing of a set of dentate structure 11, bottom fixedly connected with support 19 in the box 1, fixedly connected with and the rack 20 of first gear 12 meshing on the support 19, and rotatory 60 when 20 numbers of teeth of rack make the gear remove, be provided with on the collar 5 and be used for first damping mechanism and second damping mechanism.

In this embodiment, the first damping mechanism acts on the first connecting shaft 6 to prevent the first connecting shaft 6 from rotating randomly, and the second damping mechanism acts on the second connecting shaft 7 to prevent the second connecting shaft 7 from rotating randomly;

the hardware rotating mechanism has the following working principle: firstly, a hollow hexagonal piece is placed on a placing mechanism, then a first air cylinder 3 is operated, a piston rod of the first air cylinder 3 is extended to push a connecting frame 4, a mounting ring 5, the placing mechanism and the like to move towards a polishing mechanism simultaneously, a rack 20 is fixed in position, so that a first gear 12 and a ratchet wheel 13 rotate simultaneously, the number of teeth on the rack 20 only enables the first gear 12 to rotate by 60 degrees, the ratchet wheel 13 clamps a pawl 16 and drives the first circular plate 9, a second circular plate 10 and a first connecting shaft 6 to rotate simultaneously, when a tooth-shaped structure 11 rotates by taking the first connecting shaft 6 as a shaft, the tooth-shaped structure 11 drives a second gear 18, a second connecting shaft 7 and the placing mechanism to rotate simultaneously when meshed with the second gear 18, and the number of teeth on the tooth-shaped structure 11 enables the second gear 18 and the hollow hexagonal piece on the placing mechanism to rotate by 60 degrees and then stops, after the rotation of the placing mechanism is stopped, the starting end of the next group of the tooth-shaped structures 11 is just contacted with the second gear 18, then the piston rod of the first air cylinder 3 is continuously extended to enable the hollow hexagonal hardware to continuously move towards the polishing mechanism, the polishing mechanism polishes two surfaces of the hollow hexagonal hardware, after the two surfaces are polished, the first air cylinder 3 is operated to enable the piston rod of the first air cylinder 3 to be shortened, in the process, although the first gear 12 is meshed with the rack 20, when the first gear 12 and the ratchet wheel 13 rotate, under the action of the supporting plate 15 and the elastic sheet 17, the pawl 16 swings in a reciprocating manner by taking the connecting column 14 as an axis, namely the placing mechanism and the hollow hexagonal hardware and the like cannot rotate due to the rotation of the first gear 12 and the ratchet wheel 13, then the first air cylinder 3 is operated again to enable the piston rod of the hollow hexagonal hardware to extend, the hollow hexagonal hardware is rotated by 60 degrees and then sent to the polishing mechanism to polish the other two opposite surfaces, repeating the process, polishing the last two opposite surfaces of the hollow hexagonal hardware, and taking down the hollow hexagonal hardware after polishing;

further, as shown in fig. 3 to 4, polishing mechanism is including fixing two sets of risers 21 in box 1 inside, rotating on two sets of risers 21 and installing threaded rod 22, threaded rod 22 one end is provided with the hexagonal groove that is used for driving its rotation, threaded rod 22 goes up threaded connection has alignment jig 23, fixedly connected with tripod 24 on the alignment jig 23, tripod 24's three angle department all rotates and installs back shaft 25, the cover is equipped with polishing belt 26 on the three back shaft 25, and install motor 27 on the back shaft 25 that is close to box 1 tip, fixedly connected with platform on the tripod 24, second cylinder 28 is installed at the platform top, push pedal 29 is installed to second cylinder 28 output, threaded rod 22 goes up threaded connection has two sets of nuts 30, box 1 top is installed and is adjusted frame 23 sliding connection's first track 31.

In this embodiment, insert hexagon socket spanner into hexagonal inslot and make threaded rod 22 rotatory, to adjusting bracket 23, the horizontal position of tripod 24 and polishing strip 26 is adjusted, thereby adapt to not unidimensional cavity hexagon hardware, make this device use more extensively, after the regulation finishes, screw two sets of nuts 30, the horizontal position of fixed polishing strip 26, after motor 27 circular telegram, it rotates to drive back shaft 25 and polishing strip 26, when cavity hexagon hardware removes between two sets of polishing strips 26, operation second cylinder 28 makes its piston rod extension, make two face contacts of polishing strip 26 with cavity hexagon hardware through push pedal 29, two faces to cavity hexagon hardware polish.

Further, as shown in fig. 4 and 8, the hardware rotating mechanism further includes two sets of second rails 33 fixed at the bottom inside the box 1 and sliders 32 fixed at two sides of the bottom of the mounting ring 5, and each set of sliders 32 is in sliding fit with the second rails 33.

In this embodiment, when the mounting ring 5 drives the slider 32 to move, the mounting ring 5 is moved more stably and more stably through the second rail 33.

Further, as shown in fig. 7 to 10, the first damping mechanism includes a first limiting ring 34 fixedly connected with the mounting ring 5, a first damping rod 35 is slidably mounted on the first limiting ring 34, a first supporting ring 36 is fixedly connected to the first damping rod 35, a first pressure spring 37 is sleeved on the first damping rod 35, two ends of the first pressure spring 37 are respectively in close contact with the first supporting ring 36 and the first limiting ring 34, and one end of the first damping rod 35, which is attached to the first connecting shaft 6, is arc-shaped.

In the present embodiment, the first damping lever 35 is held in close contact with the first connecting shaft 6 by the elastic force of the first pressure spring 37, so that the first connecting shaft 6 rotates only when the first gear 12 is driven.

Further, as shown in fig. 7 to 10, the second damping mechanism includes a second limiting ring 38 fixedly connected to the mounting ring 5, a second damping rod 39 is slidably mounted on the second limiting ring 38, a second support ring 40 is fixedly connected to the second damping rod 39, a second pressure spring 41 is sleeved on the second damping rod 39, two ends of the second pressure spring 41 are respectively in close contact with the second support ring 40 and the second limiting ring 38, and two ends of the second damping rod 39, which are attached to the second connecting shaft 7, are arc-shaped.

In the present embodiment, the second damping lever 39 is held in close contact with the second connecting shaft 7 by the elastic force of the second pressure spring 41, so that the second connecting shaft 7 rotates only when the first gear 12 is driven.

Further, as shown in fig. 1 and 7, the placing mechanism includes a quadrilateral rod 42 in sliding fit with the quadrilateral groove, a fastening bolt 43 for fixing the quadrilateral rod 42 is connected to the second connecting shaft 7 through a thread, a limiting column 44 is fixedly connected to the top end of the quadrilateral rod 42, a placing ring 45 for placing hardware is fixedly connected to the limiting column 44, and a sponge ring 46 is sleeved on the limiting column 44.

In this embodiment, place cavity hexagon hardware and place on the ring 45, it is less than the size of cavity hexagon hardware hexagon department to place ring 45 external diameter, the external diameter of sponge ring 46 slightly is greater than the internal diameter of the cavity hexagon hardware of treating polishing, make sponge ring 46 when rotatory along with second connecting axle 7, it carries out synchronous revolution to drive cavity hexagon hardware, relative rotation can not take place for sponge ring 46 and cavity hexagon hardware, when processing the cavity hexagon hardware of different models, the user should make suitable spacing post 44 and sponge ring 46 according to the size of cavity hexagon hardware, and fix quadrilateral rod 42 on second connecting axle 7 through fastening bolt 43, application range has been increased.

Further, as shown in fig. 4, a telescopic rod 47 for improving the stability of the push plate 29 is fixedly connected between the platform and the push plate 29.

In this embodiment, when the push plate 29 moves, the telescopic rod 47 expands and contracts accordingly, so as to improve the stability of the push plate 29 when the push plate moves.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an outer wall grinding device of cavity hexagon piece which characterized in that includes:

the box body (1) is hollow inside and the top of the box body is communicated with an opening (2);

the hardware rotating mechanism is arranged in the box body (1) and is used for rotating the hardware by 60 degrees at a time so as to polish different surfaces of the hardware conveniently;

and the two groups of polishing mechanisms are symmetrically arranged at the top of the box body (1) by taking the central line of the opening (2) as an axis and are used for polishing two surfaces of hardware at the same time.

2. The outer wall grinding device for the hollow hexagonal piece according to claim 1, wherein the hardware rotating mechanism comprises a first cylinder (3) fixed at the bottom in the box body (1), a connecting frame (4) is fixedly connected to the output end of the first cylinder (3), a mounting ring (5) is fixedly connected to the other end of the connecting frame (4), a first connecting shaft (6), a second connecting shaft (7) and a third connecting shaft (8) are rotatably mounted on the mounting ring (5) through bearings, a first circular plate (9) and a second circular plate (10) are fixedly connected to the first connecting shaft (6), six sets of tooth-shaped structures (11) are equidistantly mounted on the circumferential side wall of the first circular plate (9), two sets of anti-reverse mechanisms are equidistantly mounted on the second circular plate (10) in a circumferential array, and the third connecting shaft (8) is rotatably connected to the bottom end of the first connecting shaft (6) through bearings, fixedly connected with first gear (12) and ratchet (13) on third connecting axle (8), prevent that the mechanism of reversing includes spliced pole (14) and backup pad (15) of fixing in second plectane (10) bottom, it has pawl (16) with ratchet (13) complex to rotate to install on spliced pole (14), fixedly connected with shell fragment (17) that are used for resetting pawl (16) position on backup pad (15), the top of second connecting axle (7) stretches out to the outside of box (1) along opening (2), second connecting axle (7) top is provided with the quadrilateral groove, slidable mounting has the placement mechanism that is used for placing cavity hexagonal hardware in the quadrilateral groove, fixedly connected with second gear (18) on second connecting axle (7), the number of teeth of every group dentate structure (11) is the fourth of second gear (18) number of teeth, and wherein the beginning and the second gear (18) meshing of a set of dentate structure (11) are engaged with, bottom fixedly connected with support (19) in box (1), fixedly connected with and rack (20) of first gear (12) meshing on support (19) to rack (20) number of teeth make the gear rotatory 60 when removing, are provided with on collar (5) and are used for first damping mechanism and second damping mechanism.

3. The outer wall polishing device for the hollow hexagonal part according to claim 1, wherein the polishing mechanism comprises two sets of vertical plates (21) fixed inside the box body (1), a threaded rod (22) is rotatably mounted on the two sets of vertical plates (21), a hexagonal groove for driving the threaded rod (22) to rotate is formed at one end of the threaded rod, an adjusting frame (23) is connected onto the threaded rod (22) in a threaded manner, a triangular frame (24) is fixedly connected onto the adjusting frame (23), supporting shafts (25) are rotatably mounted at three corners of the triangular frame (24), polishing belts (26) are sleeved on the three supporting shafts (25), a motor (27) is mounted on the supporting shaft (25) close to the end part of the box body (1), a platform is fixedly connected onto the triangular frame (24), a second air cylinder (28) is mounted at the top of the platform, and a push plate (29) is mounted at the output end of the second air cylinder (28), threaded connection has two sets of nuts (30) on threaded rod (22), and box (1) top is installed and is installed first track (31) with alignment jig (23) sliding connection.

4. The grinding device for the outer wall of the hollow hexagonal part according to claim 2, wherein the hardware rotating mechanism further comprises two sets of second rails (33) fixed at the bottom in the box body (1) and sliding blocks (32) fixed at two sides of the bottom of the mounting ring (5), and each set of sliding blocks (32) is in sliding fit with the second rails (33).

5. The outer wall grinding device for the hollow hexagonal member according to claim 2, wherein the first damping mechanism includes a first limit ring (34) fixedly connected to the mounting ring (5), a first damping rod (35) is slidably mounted on the first limit ring (34), a first support ring (36) is fixedly connected to the first damping rod (35), a first pressure spring (37) is sleeved on the first damping rod (35), two ends of the first pressure spring (37) are respectively in close contact with the first support ring (36) and the first limit ring (34), and one end of the first damping rod (35) attached to the first connecting shaft (6) is arc-shaped.

6. The outer wall grinding device for the hollow hexagonal part according to claim 2, wherein the second damping mechanism comprises a second limiting ring (38) fixedly connected with the mounting ring (5), a second damping rod (39) is slidably mounted on the second limiting ring (38), a second supporting ring (40) is fixedly connected to the second damping rod (39), a second pressure spring (41) is sleeved on the second damping rod (39), two ends of the second pressure spring (41) are respectively in close contact with the second supporting ring (40) and the second limiting ring (38), and two ends of the second damping rod (39) are attached to the second connecting shaft (7) and are in a circular arc shape.

7. The outer wall grinding device for the hollow hexagonal member is characterized in that the placing mechanism comprises a quadrilateral rod (42) in sliding fit with the quadrilateral groove, a fastening bolt (43) for fixing the quadrilateral rod (42) is in threaded connection with the second connecting shaft (7), a limiting column (44) is fixedly connected to the top end of the quadrilateral rod (42), a placing ring (45) for placing hardware is fixedly connected to the limiting column (44), and a sponge ring (46) is sleeved on the limiting column (44).

8. The device for grinding the outer wall of the hollow hexagonal member according to claim 3, wherein a telescopic rod (47) for improving the stability of the push plate (29) is fixedly connected between the platform and the push plate (29).