CN221290697U - Full-automatic screw polishing device - Google Patents

Abstract

The utility model relates to the technical field of screw machining and discloses a full-automatic screw polishing device which comprises three supporting seats, a screw to be machined, a cleaning mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, wherein a console is arranged at the top of the supporting seat on the left side, a motor I is arranged in the console, and the cleaning mechanism is arranged outside the supporting seat and is used for cleaning scraps generated during polishing; the height adjusting mechanism is arranged at the top of the cleaning mechanism and is used for adjusting the height of the polishing mechanism, so that the screw rods to be processed with different sizes can be polished conveniently; the polishing machine mechanism is arranged at the top of the height adjusting mechanism and is used for polishing the screw to be processed. According to the utility model, the position of the polishing mechanism is adjusted through the height adjusting mechanism, so that the sand paper can be better attached to the screw to be processed during polishing, the polishing effect is better, and the problem that the polishing takes longer time to perform is avoided, thereby influencing the processing efficiency.

Description

Full-automatic screw polishing device

Technical Field

The utility model relates to the technical field of screw machining, in particular to a full-automatic screw polishing device.

Background

Screw polishing is a surface treatment process aiming at improving the appearance, surface quality and performance of a screw, polishing can eliminate flaws, oxides and other non-uniformities on the surface of the screw, so that the appearance is smoother, more consistent and attractive, the roughness of the surface of the screw is reduced after the screw is polished, thereby improving the smoothness of the surface, polishing can remove oxides and other harmful substances on the surface of the screw, thereby improving the corrosion resistance of the screw, improving the surface hardness and strength of the screw, thereby improving the overall performance of the screw, and screw polishing is a multifunctional surface treatment method which can improve all aspects of the screw, thereby being more suitable for different applications and industries.

The height of abrasive paper is adjusted through the height of adjusting the running roller to current screw rod burnishing device, and whole polishing mechanism height is in fixedly, to the screw rod of equidimension, the pressure of running roller to abrasive paper can't keep unanimously, and the dynamics is lower when leading to polishing, need spend more time and compensate to reduce work efficiency, consequently the full-automatic screw rod burnishing device of technical proposal in the art solves above-mentioned problem.

Disclosure of utility model

In order to make up for the defects, the utility model provides a full-automatic screw polishing device, and aims to solve the problems that a polishing mechanism of the screw polishing device cannot be freely adjusted, so that the polishing strength of sand paper is insufficient during polishing, the working time is increased, and the working efficiency is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the full-automatic screw polishing device comprises three supporting seats, a screw to be processed, a cleaning mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, wherein a control console is arranged at the top of the supporting seat on the left side, a motor I is arranged in the control console, and the cleaning mechanism is arranged outside the supporting seat and is used for cleaning scraps generated during polishing;

The height adjusting mechanism is arranged at the top of the cleaning mechanism and is used for adjusting the height of the polishing mechanism, so that the screw rods to be processed with different sizes can be polished conveniently;

The polishing machine mechanism is arranged at the top of the height adjusting mechanism and is used for polishing the screw to be processed;

The clamping mechanism is arranged at the output end of the motor I and used for clamping and stabilizing the screw to be processed, and the polishing mechanism is convenient for polishing the screw to be processed.

Further, the clearance mechanism includes the frid, both ends are respectively with the outside fixed connection of controlling two supporting seats about the frid, the bottom of frid and the top fixed connection of well side supporting seat, the opening has been seted up to the one end of frid, and installs the dust removal box in opening department, the dust collection box is installed to the bottom of dust removal box, two slide rails are installed at the top of frid, and at two slide rail outside sliding connection there is the sliding seat, the bottom fixedly connected with brush board of sliding seat.

Further, the height adjusting mechanism comprises a base, base fixed connection is in the top of sliding seat, the cavity has been seted up to the inside of base, and rotates at the cavity inner bottom wall and be connected with the lift threaded rod, the outside fixedly connected with bevel gear two of lift threaded rod, the inside of base rotates and is connected with the dwang, the one end fixedly connected with bevel gear one of dwang, bevel gear one is connected with bevel gear two meshing, the outside threaded connection of lift threaded rod has the thread bush, two limiting plates of outside fixedly connected with of thread bush, two spacing grooves have been seted up to the inboard of base.

Further, polishing mechanism includes rotation post and backup pad, rotation post rotates the top of connection at the thread bush, backup pad fixed connection is in the outside of rotation post, the externally mounted of rotation post has angle adjustment subassembly, driving motor is installed at the top of backup pad, driving motor's output fixedly connected with running roller two, the outside fixedly connected with mounting panel of backup pad, the running roller three is installed in the outside of mounting panel, the one end sliding connection of backup pad has T shape slider, the outside of T shape slider rotates and is connected with running roller one, the periphery cover of running roller one, running roller two and running roller three is equipped with the sand paper tape, the inside threaded connection of backup pad has butterfly bolt, the top fixedly connected with baffle of backup pad.

Further, the angle adjusting assembly comprises a first cylindrical gear and an electric push rod, the first cylindrical gear is fixedly connected to the outside of the rotating column, the outer side of the electric push rod is fixedly connected to the outer side of the threaded sleeve, the output end of the electric push rod is fixedly connected with a first rack plate, and one side of the first rack plate is meshed and connected with the outer side of the first cylindrical gear.

Further, fixture includes the rolling disc, the outside fixed connection of rolling disc is at the output of motor one, the inboard rotation of rolling disc is connected with four cylindrical gear two, the inside sliding connection of rolling disc has four rack boards two, one side and the outside meshing of cylindrical gear two of rack board two are connected, the one end fixedly connected with clamp splice of rack board two, the outside fixedly connected with two locating levers of rolling disc, two the ring gear is installed in the outside of locating lever, the outside of cylindrical gear two is connected with the inboard meshing of ring gear, self-locking subassembly is installed in fixture's outside.

Further, the self-locking assembly comprises a pawl, an elastic sheet and a plurality of ratchet teeth, one end of the elastic sheet is fixedly connected to the outer side of the rotating disc, the pawl is rotationally connected to the outer side of the rotating disc, and the ratchet teeth are fixedly connected to the outer side of the toothed ring.

Further, the other ends of the two positioning rods are fixedly connected with a cover disc, two arc-shaped slotted holes are formed in the toothed ring, and the outer sides of the positioning rods are in sliding connection with the inner sides of the arc-shaped slotted holes.

Further, the left side internally mounted of supporting seat has motor two, the output fixedly connected with drive threaded rod of motor two, drive threaded rod's outside threaded connection has the screw thread piece, the outside of screw thread piece and the inboard fixed connection of sliding seat, drive threaded rod's the other end and the outside rotation of right side supporting seat are connected.

Further, two guide rods are fixedly connected to the similar sides of the left side supporting seat and the right side supporting seat, an L-shaped support is connected to the outer portions of the two guide rods in a sliding mode, a supporting plate is fixedly connected to the top of the L-shaped support, two auxiliary rollers are mounted on the top of the supporting plate, and the auxiliary rollers are connected with a screw to be processed in a rotating mode.

The utility model has the following beneficial effects:

1. According to the utility model, the position of the polishing mechanism is adjusted through the height adjusting mechanism, so that the sand paper can be better attached to the screw to be processed during polishing, the polishing effect is better, and the problem that the polishing takes longer time to perform is avoided, thereby influencing the processing efficiency.

2. According to the screw rod polishing device, one end of the screw rod to be processed with various sizes can be clamped through the clamping mechanism, and the screw rod to be processed is supported by the auxiliary roller, so that the screw rod to be processed can stably rotate during polishing.

3. According to the utility model, the polishing mechanism is driven to move through the sliding seat, scraps generated during polishing can be cleaned by the brush plate at the bottom of the sliding seat, and then the scraps are collected through the dust removal box, so that the influence of the accumulation of the scraps on the operation of equipment is avoided.

Drawings

FIG. 1 is a perspective view of a fully automatic screw polishing device according to the present utility model;

FIG. 2 is a schematic view of the structure of an L-shaped bracket of the full-automatic screw polishing device;

FIG. 3 is a schematic view of a height adjusting mechanism of the full-automatic screw polishing device according to the present utility model;

FIG. 4 is an enlarged view of FIG. 2A;

FIG. 5 is a schematic structural view of a polishing mechanism of the full-automatic screw polishing device according to the present utility model;

FIG. 6 is an enlarged view at B in FIG. 5;

Fig. 7 is a schematic structural diagram of a clamping mechanism of the full-automatic screw polishing device according to the present utility model;

Fig. 8 is an enlarged view of fig. 7 at C.

Legend description:

1. A support base; 2. a trough plate; 3. a sliding seat; 4. a base; 5. a limit groove; 6. a thread sleeve; 7. a limiting plate; 8. lifting the threaded rod; 9. bevel gears II; 10. a rotating lever; 11. bevel gears I; 12. a screw block; 13. a brush plate; 14. rotating the column; 15. a cylindrical gear I; 16. a support plate; 17. an electric push rod; 18. rack plate I; 19. a butterfly bolt; 20. a T-shaped slider; 21. a roller I; 22. a baffle; 23. a driving motor; 24. a second roller; 25. a mounting plate; 26. a third roller; 27. a console; 28. a rotating disc; 29. a pawl; 30. an elastic sheet; 31. a cylindrical gear II; 32. rack plate II; 33. a positioning rod; 34. a toothed ring; 35. ratchet teeth; 36. an arc-shaped slot; 37. a cover plate; 38. a dust removal box; 39. a dust collection box; 40. a guide rod; 41. an L-shaped bracket; 42. a supporting plate; 43. an auxiliary roller; 44. a screw to be processed; 45. the threaded rod is driven.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the polishing device comprises three supporting seats 1, a screw 44 to be processed, a cleaning mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, wherein a console 27 is arranged at the top of the left supporting seat 1, a motor I is arranged in the console 27, and the cleaning mechanism is arranged outside the supporting seat 1 and is used for cleaning scraps generated during polishing;

the height adjusting mechanism is arranged at the top of the cleaning mechanism and is used for adjusting the height of the polishing mechanism so as to facilitate polishing of the screw 44 to be processed with different sizes;

The polishing mechanism is arranged at the top of the height adjusting mechanism and is used for polishing the screw 44 to be processed;

The clamping mechanism is arranged at the output end of the motor I and used for clamping and stabilizing the screw 44 to be processed, so that the polishing mechanism can polish the screw 44 to be processed conveniently.

Referring to fig. 1 and 7, the cleaning mechanism includes a trough plate 2, the left and right ends of the trough plate 2 are respectively fixedly connected with the outer sides of the left and right support seats 1, the bottom of the trough plate 2 is fixedly connected with the top of the middle support seat 1, a through hole is formed in one end of the trough plate 2, a dust removal box 38 is installed at the through hole, a dust collection box 39 is installed at the bottom of the dust removal box 38, two sliding rails are installed at the top of the trough plate 2, a sliding seat 3 is connected to the outer parts of the two sliding rails in a sliding manner, and a brush plate 13 is fixedly connected to the bottom of the sliding seat 3.

Specifically, the fragments during polishing can fall to the inboard of frid 2, and sliding seat 3 is close to one side extension of drive threaded rod 45 to cover the top of drive threaded rod 45, prevent that the fragments that the polishing dropped from falling on the drive threaded rod 45, the slide rail makes things convenient for sliding seat 3 to remove, and the brush board 13 of sliding seat 3 bottom can sweep the inboard fragments of frid 2, and is absorbed the dust collection box 38 and store inside 39.

Referring to fig. 2-3, the height adjusting mechanism comprises a base 4, the base 4 is fixedly connected to the top of the sliding seat 3, a cavity is formed in the base 4, a lifting threaded rod 8 is rotatably connected to the inner bottom wall of the cavity, a bevel gear II 9 is fixedly connected to the outer side of the lifting threaded rod 8, a rotating rod 10 is rotatably connected to the inner side of the base 4, a bevel gear I11 is fixedly connected to one end of the rotating rod 10, the bevel gear I11 is in meshed connection with the bevel gear II 9, a threaded sleeve 6 is connected to the outer side of the lifting threaded rod 8 in a threaded manner, two limiting plates 7 are fixedly connected to the outer side of the threaded sleeve 6, and two limiting grooves 5 are formed in the inner side of the base 4.

Specifically, limiting plate 7 cooperates with spacing groove 5, can make thread bush 6 stable removal, rotates dwang 10 and can make bevel gear one 11 drive bevel gear two 9 rotations, and then makes lift threaded rod 8 rotate, so can make thread bush 6 remove, so can make polishing mechanism highly adjust.

Referring to fig. 5 to 6, the polishing mechanism includes a rotation column 14 and a support plate 16, the rotation column 14 is rotatably connected to the top of the thread bush 6, the support plate 16 is fixedly connected to the outside of the rotation column 14, an angle adjusting component is mounted on the outside of the rotation column 14, a driving motor 23 is mounted on the top of the support plate 16, an output end of the driving motor 23 is fixedly connected with a roller II 24, an outer side of the support plate 16 is fixedly connected with a mounting plate 25, a roller III 26 is mounted on the outer side of the mounting plate 25, one end of the support plate 16 is slidably connected with a T-shaped slide 20, a roller I21 is rotatably connected to the outer side of the T-shaped slide 20, a sand paper tape is sleeved on the peripheries of the roller I21, the roller II 24 and the roller III 26, a butterfly bolt 19 is connected to the inner thread of the support plate 16, and a baffle 22 is fixedly connected to the top of the support plate 16.

Specifically, tightening the butterfly bolt 19 can lock the T-shaped slide block 20, the roller III 26 is installed at the hole of the mounting plate 25 through the stud and the nut, a fixing ring is arranged in the middle of the stud, the roller III 26 can be locked through matching with the nut, the roller III 26 is rotationally connected with the stud, the position of the roller III 26 and the position of the roller I21 can be adjusted, the sand paper tape can be tightly supported, the driving motor 23 is started to enable the roller II 24 to rotate, the sand paper tape rotates, and the baffle 22 prevents scraps during polishing from splashing.

Referring to fig. 5-6, the angle adjusting assembly comprises a first cylindrical gear 15 and an electric push rod 17, wherein the first cylindrical gear 15 is fixedly connected to the outside of the rotary column 14, the outside of the electric push rod 17 is fixedly connected to the outside of the threaded sleeve 6, the output end of the electric push rod 17 is fixedly connected with a first rack plate 18, and one side of the first rack plate 18 is meshed with the outside of the first cylindrical gear 15.

Specifically, the electric push rod 17 is started to push the rack plate I18 to move, so that the cylindrical gear I15 can be rotated, and the rotating column 14 is driven to rotate, so that the working angle of the polishing mechanism is adjusted, and the sand paper belt is attached to the outer side of the screw 44 to be processed.

Referring to fig. 7-8, the clamping mechanism comprises a rotating disc 28, the outer side of the rotating disc 28 is fixedly connected to the output end of a first motor, four second cylindrical gears 31 are rotatably connected to the inner side of the rotating disc 28, four second rack plates 32 are slidably connected to the inner side of the rotating disc 28, one side of each second rack plate 32 is in meshed connection with the outer side of each second cylindrical gear 31, a clamping block is fixedly connected to one end of each second rack plate 32, two positioning rods 33 are fixedly connected to the outer side of the rotating disc 28, toothed rings 34 are mounted on the outer sides of the two positioning rods 33, the outer sides of the second cylindrical gears 31 are in meshed connection with the inner sides of the toothed rings 34, and a self-locking assembly is mounted on the outer side of the clamping mechanism.

Specifically, the toothed ring 34 is pushed to rotate, so that the cylindrical gear II 31 rotates and drives the rack plate II 32 to move, and the clamping block clamps one end of the screw 44 to be processed.

Referring to fig. 8, the self-locking assembly includes a pawl 29, an elastic sheet 30, and a plurality of ratchet teeth 35, one end of the elastic sheet 30 is fixedly connected to the outer side of the rotating disc 28, the pawl 29 is rotatably connected to the outer side of the rotating disc 28, and the plurality of ratchet teeth 35 are fixedly connected to the outer side of the toothed ring 34.

Specifically, the elastic sheet 30 can press the pawl 29 to prevent the pawl 29 from loosening, and the ratchet teeth 35 are matched with the pawl 29 to fix the position of the toothed ring 34.

Referring to fig. 8, the other ends of the two positioning rods 33 are fixedly connected with a cover plate 37, two arc-shaped slotted holes 36 are formed in the toothed ring 34, and the outer sides of the positioning rods 33 are slidably connected with the inner sides of the arc-shaped slotted holes 36.

Specifically, the cover plate 37 can protect the internal structure of the clamping mechanism, and the positioning rod 33 is matched with the arc-shaped slotted hole 36, so that the toothed ring 34 can rotate stably.

Referring to fig. 1-3, a second motor is installed in the left support seat 1, an output end of the second motor is fixedly connected with a driving threaded rod 45, an outer side of the driving threaded rod 45 is in threaded connection with a threaded block 12, an outer side of the threaded block 12 is fixedly connected with an inner side of the sliding seat 3, and the other end of the driving threaded rod 45 is in rotary connection with an outer side of the right support seat 1.

Specifically, the support seat 1 is externally provided with a long slat, which can play a limiting role on the sliding seat 3, and the second motor is started to drive the threaded rod 45 to rotate, so that the threaded block 12 drives the sliding seat 3 to move, and the polishing mechanism moves.

Referring to fig. 2-4, two guide rods 40 are fixedly connected to the near side of the left support seat 1 and the near side of the right support seat 1, an L-shaped support 41 is slidably connected to the outer portion of the two guide rods 40, a supporting plate 42 is fixedly connected to the top of the L-shaped support 41, two auxiliary rollers 43 are mounted on the top of the supporting plate 42, and the auxiliary rollers 43 are rotatably connected with a screw 44 to be processed.

Specifically, the principle of the adjusting mechanism inside the L-shaped bracket 41 is similar to that of the height adjusting mechanism, and the height of the supporting plate 42 can be adjusted, so that the two auxiliary rollers 43 can conveniently support the other end of the screw 44 to be processed.

Working principle: firstly, a screw rod 44 to be processed is inserted into the cover disc 37, a worker can push the toothed ring 34 to rotate, so that a cylindrical gear II 31 rotates and drives a toothed plate II 32 to move, one end of the screw rod 44 to be processed is clamped by a clamping block, the position of a ratchet tooth 35 is changed when the toothed ring 34 rotates, when the toothed ring 34 is stopped being pushed, the ratchet tooth 35 and a pawl 29 are clamped, the toothed ring 34 cannot automatically return to an initial state, a supporting plate 42 is moved to a proper position by an adjusting mechanism in an L-shaped bracket 41, two auxiliary rollers 43 support the screw rod 44 to be processed, a rotating rod 10 can drive a bevel gear I11 to drive a bevel gear II 9 to rotate, and then a lifting threaded rod 8 rotates, so that a threaded sleeve 6 moves, and the height of a polishing mechanism is adjusted;

In addition, the electric push rod 17 is started to push the rack plate I18 to move, so that the cylindrical gear I15 can be made to rotate, the rotating column 14 is driven to rotate, the working angle of the polishing mechanism is adjusted, the sand paper strip is attached to the outer side of the screw 44 to be processed, the motor I is started through the control console 27, the clamping mechanism drives the screw 44 to be processed to rotate, meanwhile, the driving motor 23 is started to drive the roller II 24 to rotate, the polishing mechanism polishes the screw 44 to be processed, the driving motor II can drive the threaded rod 45 to rotate, the sliding seat 3 drives the polishing mechanism to move, other positions of the screw 44 to be processed are polished, meanwhile, the hairbrush plate 13 at the bottom of the sliding seat 3 can sweep scraps on the inner side of the groove plate 2, and the scraps are absorbed into the dust box 39 by the dust removing box 38 to be stored.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (10)

1. The full-automatic screw polishing device comprises three supporting seats (1), a screw (44) to be processed, a cleaning mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, and is characterized in that a console (27) is arranged at the top of the supporting seat (1) on the left side, a motor I is arranged in the console (27), and the cleaning mechanism is arranged outside the supporting seat (1) and is used for cleaning scraps generated during polishing;

The height adjusting mechanism is arranged at the top of the cleaning mechanism and is used for adjusting the height of the polishing mechanism so as to facilitate polishing of screws (44) to be processed with different sizes;

the polishing machine mechanism is arranged at the top of the height adjusting mechanism and is used for polishing the screw (44) to be processed;

the clamping mechanism is arranged at the output end of the motor I and used for clamping and stabilizing the screw (44) to be processed, so that the polishing mechanism can polish the screw (44) to be processed conveniently.

2. The full-automatic screw rod burnishing device according to claim 1, characterized in that the clearance mechanism includes frid (2), both ends are about with controlling the outside fixed connection of two supporting seats (1) respectively about frid (2), the bottom of frid (2) and the top fixed connection of well side supporting seat (1), the opening has been seted up to the one end of frid (2), and installs dust removal box (38) in opening department, dust collection box (39) are installed to the bottom of dust removal box (38), two slide rails are installed at the top of frid (2), and at two slide rail outside sliding connection have sliding seat (3), the bottom fixedly connected with brush board (13) of sliding seat (3).

3. The full-automatic screw rod burnishing device according to claim 2, characterized in that the height adjustment mechanism includes base (4), base (4) fixed connection is in the top of sliding seat (3), the cavity has been seted up to the inside of base (4), and is connected with lift threaded rod (8) in cavity inner bottom wall rotation, the outside fixedly connected with bevel gear two (9) of lift threaded rod (8), the inside rotation of base (4) is connected with dwang (10), the one end fixedly connected with bevel gear one (11) of dwang (10), bevel gear one (11) and bevel gear two (9) meshing are connected, the outside threaded connection of lift threaded rod (8) has thread bush (6), two limiting plates (7) are fixedly connected with in the outside of thread bush (6), two spacing grooves (5) have been seted up to the inboard of base (4).

4. The full-automatic screw rod burnishing device according to claim 3, characterized in that, the burnishing mechanism includes rotation post (14) and backup pad (16), rotation post (14) rotate the top of being connected at thread bush (6), backup pad (16) fixed connection is in the outside of rotation post (14), the externally mounted of rotation post (14) has angle adjustment subassembly, driving motor (23) are installed at the top of backup pad (16), the output fixedly connected with running roller two (24) of driving motor (23), the outside fixedly connected with mounting panel (25) of backup pad (16), running roller three (26) are installed in the outside of mounting panel (25), one end sliding connection of backup pad (16) has T shape slider (20), the outside rotation of T shape slider (20) is connected with running roller one (21), the periphery cover of running roller two (24) and running roller three (26) is equipped with the paper tape, the internal thread connection of backup pad (16) has butterfly bolt (19), the fixedly connected with baffle (22) at the top of backup pad (16).

5. The full-automatic screw polishing device according to claim 4, wherein the angle adjusting assembly comprises a first cylindrical gear (15) and an electric push rod (17), the first cylindrical gear (15) is fixedly connected to the outside of the rotating column (14), the outer side of the electric push rod (17) is fixedly connected to the outer side of the threaded sleeve (6), the output end of the electric push rod (17) is fixedly connected with a first rack plate (18), and one side of the first rack plate (18) is in meshed connection with the outer side of the first cylindrical gear (15).

6. The full-automatic screw polishing device according to claim 1, wherein the clamping mechanism comprises a rotating disc (28), the outer side of the rotating disc (28) is fixedly connected with the output end of a motor I, the inner side of the rotating disc (28) is rotationally connected with four second cylindrical gears (31), the inner side of the rotating disc (28) is slidingly connected with four second toothed plates (32), one side of the second toothed plates (32) is in meshed connection with the outer side of the second cylindrical gears (31), one end of the second toothed plates (32) is fixedly connected with a clamping block, the outer side of the rotating disc (28) is fixedly connected with two positioning rods (33), toothed rings (34) are arranged on the outer sides of the two positioning rods (33), the outer sides of the second cylindrical gears (31) are in meshed connection with the inner sides of the toothed rings (34), and the outer sides of the clamping mechanism are provided with self-locking assemblies.

7. The full-automatic screw polishing device according to claim 6, wherein the self-locking assembly comprises a pawl (29), an elastic sheet (30) and a plurality of ratchet teeth (35), one end of the elastic sheet (30) is fixedly connected to the outer side of the rotating disc (28), the pawl (29) is rotatably connected to the outer side of the rotating disc (28), and the plurality of ratchet teeth (35) are fixedly connected to the outer side of the toothed ring (34).

8. The full-automatic screw rod polishing device according to claim 6, wherein the other ends of the two positioning rods (33) are fixedly connected with a cover disc (37), two arc-shaped slotted holes (36) are formed in the toothed ring (34), and the outer sides of the positioning rods (33) are in sliding connection with the inner sides of the arc-shaped slotted holes (36).

9. The full-automatic screw rod burnishing device according to claim 1, characterized in that, left side internally mounted of supporting seat (1) has motor two, the output fixedly connected with drive threaded rod (45) of motor two, the outside threaded connection of drive threaded rod (45) has screw thread piece (12), the outside of screw thread piece (12) and the inboard fixed connection of sliding seat (3), the other end of drive threaded rod (45) rotates with the outside of right side supporting seat (1) and is connected.

10. The full-automatic screw rod burnishing device according to claim 1, characterized in that, the nearly side fixedly connected with two guide bars (40) of left side supporting seat (1) and right side supporting seat (1), two the outside sliding connection of guide bar (40) has L shape support (41), the top fixedly connected with layer board (42) of L shape support (41), two auxiliary roller (43) are installed at the top of layer board (42), auxiliary roller (43) are connected with waiting to process screw rod (44) rotation.