阅读说明：本技术 一种金属制品内壁抛光机 (Polishing machine for inner wall of metal product ) 是由 沈琼彬 于 2021-09-26 设计创作，主要内容包括：本发明涉及金属空心柱抛光技术领域,特别涉及一种金属制品内壁抛光机,包括基座、卡紧单元和抛光单元,所述基座上安装有卡紧单元,且基座上端设置有抛光单元；本发明能够解决以下问题：一般的抛光设备需要金属空心柱进行转动,无法对金属空心柱进行固定,使得金属空心柱在抛光过程中缺乏稳定性；由于砂轮和金属空心柱同时发生转动,使得砂轮和金属空心柱的轴线位置容易出现错位,因此无法确保砂轮与金属空心柱的内壁之间的接触距离是否一致,因此容易造成抛光划痕；本发明能够对金属空心柱进行多方位卡紧固定,便于对其内壁进行抛光处理；本发明能够调节扇形抛光板与金属空心柱的内壁之间的接触距离,从而能够减少抛光划痕。(The invention relates to the technical field of metal hollow column polishing, in particular to a metal product inner wall polishing machine which comprises a base, a clamping unit and a polishing unit, wherein the clamping unit is installed on the base, and the polishing unit is arranged at the upper end of the base; the present invention can solve the following problems: the common polishing equipment needs the metal hollow column to rotate, and cannot fix the metal hollow column, so that the metal hollow column is lack of stability in the polishing process; because the grinding wheel and the metal hollow column rotate simultaneously, the axial line positions of the grinding wheel and the metal hollow column are easy to misplace, whether the contact distance between the grinding wheel and the inner wall of the metal hollow column is consistent or not cannot be ensured, and polishing scratches are easy to cause; the metal hollow column can be clamped and fixed in multiple directions, so that the inner wall of the metal hollow column can be polished conveniently; the invention can adjust the contact distance between the fan-shaped polishing plate and the inner wall of the metal hollow column, thereby reducing polishing scratches.)

1. The utility model provides a metal product inner wall burnishing machine, includes base (1), chucking unit (2) and polishing unit (3), its characterized in that: a placing hole (11) is formed in the upper end of the base (1), a clamping unit (2) is installed on the base (1), and a polishing unit (3) is arranged at the upper end of the base (1);

chucking unit (2) are including ring channel (21), spacing spout (22), a motor (23), linkage gear (24), annular frame (25), fixed teeth of a cogwheel (26), linkage piece (27), actuating lever (28), press from both sides tight piece (29) and shrink spring (20), wherein: the base (1) is internally provided with an annular groove (21), one side of the annular groove (21) close to the placing hole (11) is uniformly provided with a plurality of limiting sliding grooves (22) along the circumferential direction, a motor (23) is installed at the left end of the base (1) through a motor base, the output end of the motor (23) is fixedly sleeved with a linkage gear (24), the right side of the linkage gear (24) penetrates through the base (1) and extends into the annular groove (21), an annular frame (25) is rotatably arranged in the annular groove (21), one side of the annular frame (25) close to the placing hole (11) is uniformly and fixedly provided with a linkage block (27) corresponding to the position of the placing hole (11) along the circumferential direction, one side of the annular frame (25) far away from the placing hole (11) is uniformly provided with a fixed gear tooth (26) meshed with the linkage gear (24) along the circumferential direction, one end of an actuating rod (28) slides and butts against one side of the linkage block (27) far away from the annular frame (25), the other end of the actuating rod (28) extends into the limiting sliding groove (22), one end of the actuating rod (28) far away from the linkage block (27) is fixedly provided with a clamping block (29) which is arranged in the limiting sliding groove (22) in a sliding mode, and a contraction spring (20) is fixedly arranged between the clamping block (29) and the limiting sliding groove (22);

polishing unit (3) are including location cylinder (31), bearing board (32), No. two motor (33), support column (34), fixed plate (35), coupling assembling (36), fan-shaped polishing plate (37) and collection subassembly (38), wherein: the utility model discloses a fan-shaped polishing machine, including base (1), base (11), motor cover, support column (34), fan-shaped polishing plate (37) are installed through coupling assembling (36) along its week evenly to the fixed plate (35) outside, collect subassembly (38) and set up the inner wall downside at placing hole (11), the flexible end of location cylinder (31) upside is provided with bearing board (32), the center department of bearing board (32) upper end installs No. two motor (33) through the motor cover, support column (34) are installed to the output of No. two motor (33) downside passes bearing board (32), the fixed plate (35) that is provided with of output of support column (34) downside, fixed plate (35) outside is followed its week and is installed fan-shaped polishing plate (37), collect subassembly (38) and set up the inner wall downside at placing hole (11).

2. The metal product inner wall polishing machine according to claim 1, wherein: one side of the linkage block (27) close to the actuating rod (28) is an inclined surface.

3. The metal product inner wall polishing machine according to claim 1, wherein: and one end of the clamping block (29) far away from the contraction spring (20) is clamped with an auxiliary pad (291).

4. The metal product inner wall polishing machine according to claim 1, wherein: the connecting assembly (36) comprises a fixing rod (361), a threaded rod (362), a supporting rod (363), an adjusting turntable (364), an L-shaped rod (365), a sliding groove (366) and a positioning pin (367), wherein: fixing rod (361) is installed on the fixed plate (35) outside, the one end that fixed rod (361) kept away from fixed plate (35) rotates and is provided with threaded rod (362), bracing piece (363) is installed through threaded connection's mode to the one end that fixed rod (361) was kept away from in threaded rod (362), the one end that threaded rod (362) was kept away from in bracing piece (363) is connected with fan-shaped polishing plate (37), fixed cover in one side that the outside of threaded rod (362) is close to fixed rod (361) is equipped with adjustment carousel (364), the vertical section fixed mounting in fixed rod (361) outside of L type pole (365), the horizontal segment of L type pole (365) is close to one side of bracing piece (363), and sliding tray (366) has been seted up to the horizontal segment of L type pole (365), fixed being provided with on bracing piece (363) locating pin (367), locating pin (367) slides and sets up in sliding tray (366).

5. The metal product inner wall polishing machine according to claim 4, wherein: the horizontal segment of L type pole (365) uses sliding tray (366) to evenly install scale mark (368) as centrosymmetric, and bracing piece (363) is kept away from in locating pin (367) one side symmetry install with scale mark (368) matched with scale (369).

6. The metal product inner wall polishing machine according to claim 1, wherein: the fan-shaped polishing plate (37) is kept away from the one end of fixed plate (35) and is provided with flexible piece (371) along its bilateral symmetry, fixed block (372) are installed along its middle part symmetry to the one end that fixed plate (35) were kept away from in fan-shaped polishing plate (37), fine sand paper (373) are installed through the detachable mode to the one end that fan-shaped polishing plate (37) were kept away from in fixed block (372) and flexible piece (371), and the outer wall symmetry of fan-shaped polishing plate (37) is provided with L template (374), the one end that fixed plate (35) were kept away from in L template (374) evenly is provided with brush (375).

7. The metal product inner wall polishing machine according to claim 1, wherein: the collection assembly (38) comprises a support plate (381), a blanking aperture (382), an annular seat (383), and a collection chamber (384), wherein: the supporting plate (381) is installed on the lower side of the inner wall of the placing hole (11), a blanking hole (382) is formed in the center of the supporting plate (381), an annular seat (383) is fixedly installed at the upper end of the supporting hole, and a collecting cavity (384) is clamped at the lower end of the supporting plate (381).

8. The metal product inner wall polishing machine according to claim 7, wherein: the blanking hole (382) is a conical hole with the diameter gradually reduced from top to bottom.

Technical Field

The invention relates to the technical field of metal product polishing, in particular to a metal product inner wall polishing machine.

Background

The metal product industry comprises structural metal product manufacturing, metal tool manufacturing, container manufacturing, metal packaging container manufacturing and the like, wherein the metal products comprise an anti-theft door, a bicycle, a stainless steel pot, a metal hollow column and the like, and after the metal hollow column is manufactured, the inner wall of the metal hollow column needs to be polished so as to improve the later-stage use performance.

However, the existing polishing equipment has the following problems when polishing the metal hollow column: 1. the general polishing equipment is mainly used for polishing the metal hollow column by extending a throwing rod into a pipe to drive a grinding wheel to rotate at a high speed, and the metal hollow column is required to rotate, so that the metal hollow column cannot be fixed, and the stability of the metal hollow column in the polishing process is lacked.

2. Because the diameter of emery wheel is less than the internal diameter of the hollow post of metal, and emery wheel and the hollow post of metal take place to rotate simultaneously for the dislocation appears easily in the axis position of emery wheel and the hollow post of metal, consequently can't ensure whether the contact distance between the inner wall of emery wheel and the hollow post of metal is unanimous, consequently causes the polishing mar easily.

Disclosure of Invention

The technical problem to be solved is as follows: the metal product inner wall polishing machine provided by the invention can solve the problems pointed out in the background technology.

The technical scheme is as follows: in order to achieve the purpose, the invention specifically adopts the following technical scheme that the polishing machine for the inner wall of the metal product comprises a base, a clamping unit and a polishing unit, wherein a placing hole is formed in the upper end of the base, the clamping unit is installed on the base, and the polishing unit is arranged at the upper end of the base.

The chucking unit includes ring channel, spacing spout, a motor, linkage gear, annular frame, the fixed teeth of a cogwheel, linkage piece, actuating lever, fan-shaped clamp block and shrink spring, wherein: the base is internally provided with a ring-shaped groove, one side of the ring-shaped groove close to the placing hole is evenly provided with a plurality of limiting sliding grooves along the circumferential direction, a first motor is arranged at the left end of the base through a motor base, the output end of the first motor is fixedly sleeved with a linkage gear, the right side of the linkage gear penetrates through the base and extends into the ring-shaped groove, the ring-shaped frame is rotationally arranged in the ring-shaped groove, one side of the ring-shaped frame close to the placing hole is evenly and fixedly provided with linkage blocks corresponding to the placing hole along the circumferential direction, one side of the annular frame, which is far away from the placing hole, is uniformly provided with fixed gear teeth meshed with the linkage gear along the circumferential direction of the annular frame, one end of the actuating rod slides and abuts against one side of the linkage block, which is far away from the annular frame, the other end of the actuating rod extends into the limiting sliding groove, one end of the actuating rod, which is far away from the linkage block, is fixedly provided with a fan-shaped clamping block, which is arranged in the limiting sliding groove in a sliding manner, and a contraction spring is fixedly arranged between the fan-shaped clamping block and the limiting sliding groove; at first install the hollow post of metal of treating processing in the standing groove, then start a motor, a motor drives linkage gear and rotates, the linkage gear drives the annular frame through rather than the fixed gear who meshes mutually and rotates, make the annular frame drive linkage block rotate along the ring channel, the linkage block drives fan-shaped clamping block through the actuating lever and supports and lean on hollow post of metal, the fan-shaped clamping block of being convenient for presss from both sides tight fixedly through the auxiliary pad to the hollow post of metal, thereby it is fixed to carry out diversified chucking to the hollow post of metal, be convenient for carry out polishing treatment to the inner wall of the hollow post of metal.

Polishing unit is including location cylinder, bearing board, No. two motors, support column, fixed plate, coupling assembling, fan-shaped polishing board and collection subassembly, wherein: the upper end of the base is symmetrically provided with positioning cylinders in a left-right mode by taking the placing hole as a center, the telescopic end of the upper side of each positioning cylinder is provided with a bearing plate, the center of the upper end of the bearing plate is provided with a second motor through a motor cover, the output end of the lower side of the second motor penetrates through the bearing plate to be provided with a support column, the output end of the lower side of the support column is fixedly provided with a fixed plate, the outer side of the fixed plate is uniformly provided with fan-shaped polishing plates through connecting components along the periphery of the outer side of the fixed plate, and the collecting components are arranged on the lower side of the inner wall of the placing hole; after the clamping unit finishes fixing the metal hollow column, firstly, the positioning cylinder is started, the positioning cylinder drives the bearing plate to move downwards, the bearing plate drives the fan-shaped polishing plate to extend to the inner wall of the metal hollow column through the supporting column, then, the distance between the fan-shaped polishing plate and the fixed plate is adjusted through the connecting component according to the inner diameter of the metal hollow column, the fan-shaped polishing plate is enabled to be abutted against the inner wall of the metal hollow column, then, the motor II is started, the motor II drives the fixed plate to rotate through the supporting column, the fixed plate drives the fan-shaped polishing plate to rotate through the connecting component, the fan-shaped polishing plate is enabled to carry out rotary polishing treatment on the inner wall of the metal hollow column, meanwhile, the positioning cylinder drives the fan-shaped polishing plate to carry out vertical reciprocating movement through the bearing plate and the supporting column, thereby, the rotary polishing treatment on the inner wall of the metal hollow column can be carried out, and the polishing effect on the metal hollow column can be enhanced, polishing scratches can be reduced.

As a preferable technical scheme of the invention, one side of the linkage block, which is close to the execution rod, is an inclined surface.

As a preferred technical scheme of the invention, one end of the fan-shaped clamping block, which is far away from the contraction spring, is clamped with an auxiliary pad; when the annular frame drives the linkage block and rotates along the ring channel, the linkage block can promote the executive rod to one side that is close to and places the hole through the inclined plane, can make fan-shaped tight piece of clamp support and lean on the hollow post of metal through the executive rod, and the fan-shaped tight piece of clamp of being convenient for presss from both sides tight fixedly to the hollow post of metal through the auxiliary pad, can increase the frictional force between the inner wall of fan-shaped tight piece of clamp and the hollow post of metal through the auxiliary pad to can strengthen the fixed effect of fan-shaped tight piece of clamp to the hollow post of metal.

As a preferred technical scheme of the invention, the connecting assembly comprises a fixed rod, a threaded rod, a supporting rod, an adjusting turntable, an L-shaped rod, a sliding groove and a positioning pin, wherein: the dead lever is installed in the fixed plate outside, the dead lever is kept away from the one end of fixed plate and is rotated and be provided with the threaded rod, the bracing piece is installed through threaded connection's mode to the one end that the dead lever was kept away from to the threaded rod, the one end that the threaded rod was kept away from to the bracing piece is connected with fan-shaped polishing plate, the fixed cover in one side that the threaded rod outside is close to the dead lever is equipped with the adjustment carousel, the vertical section fixed mounting of L type pole is in the dead lever outside, the horizontal segment of L type pole is close to one side of bracing piece, and the horizontal segment of L type pole has seted up the sliding tray, the fixed locating pin that is provided with on the bracing piece, the locating pin slides and sets up in the sliding tray.

As a preferred technical scheme of the invention, the horizontal section of the L-shaped rod is symmetrically and uniformly provided with scale marks by taking the sliding groove as a center, and one side of the positioning pin, which is far away from the supporting rod, is symmetrically provided with scale rulers matched with the scale marks; after the fan-shaped polished plate removed the inner wall department of the hollow post of metal, rotate the adjustment carousel, it takes place to rotate to make the adjustment carousel drive the threaded rod, the bracing piece removes or removes to one side of keeping away from the dead lever to one side that is close to the dead lever under the effect of locating pin cooperation sliding tray this moment, thereby can adjust the distance between fan-shaped polished plate and the fixed plate through the bracing piece according to the internal diameter of the hollow post of metal, be convenient for make fan-shaped polished plate support and lean on the inner wall at the hollow post of metal, thereby can strengthen the polishing effect to the hollow post of metal, can reduce the polishing mar, during this period, through mark cooperation mark chi be convenient for observe the distance between bracing piece and the dead lever, thereby can ensure the regulation precision of distance between fan-shaped polished plate and the fixed plate.

As a preferred technical scheme of the invention, telescopic blocks are symmetrically arranged at one end of the fan-shaped polishing plate, which is far away from the fixed plate, along two sides of the fan-shaped polishing plate, fixed blocks are symmetrically arranged at one end of the fan-shaped polishing plate, which is far away from the fixed plate, along the middle part of the fan-shaped polishing plate, fine sand paper is detachably arranged at one ends of the fixed blocks and the telescopic blocks, which are far away from the fan-shaped polishing plate, an L-shaped plate is symmetrically arranged on the outer wall of the fan-shaped polishing plate, and brushes are uniformly arranged at one end of the L-shaped plate, which is far away from the fixed plate; drive thin abrasive paper through the fixed block and can carry out polishing treatment to the inner wall of the hollow post of metal, and be convenient for dismantle and change thin abrasive paper, during this period, flexible piece can push up thin abrasive paper to the outside and touch, is convenient for polish the arch on the inner wall of the hollow post of metal, can strengthen polishing effect, can brush the piece that the hollow post inner wall of metal polishing produced through the brush, avoid the condition of piece adhesion on the hollow post inner wall of metal.

As a preferred technical solution of the present invention, the collecting assembly includes a supporting plate, a blanking hole, an annular seat and a collecting chamber, wherein: the supporting plate is arranged on the lower side of the inner wall of the placing hole, a blanking hole is formed in the center of the supporting plate, an annular seat is fixedly arranged at the upper end of the supporting hole, and a collecting cavity is clamped at the lower end of the supporting plate;

as a preferred technical scheme of the invention, the blanking hole is a conical hole with the diameter gradually reduced from top to bottom; the scrap generated by polishing the metal hollow column is conveniently guided into the collection cavity through the blanking hole, so that the scrap can be prevented from being accumulated in the placement hole to influence the later processing of the metal hollow column; when the metal hollow column is installed in the placing hole, the metal hollow column can be upwards supported through the annular seat, the clamping unit can conveniently clamp and fix the metal hollow column, and then scraps generated by the polishing unit when polishing the inner wall of the metal hollow column fall into the collecting cavity through the blanking hole; after the polishing of the metal hollow column is completed, the collecting cavity is detached, and then the chips in the collecting cavity are poured out, so that the chips can be recycled for the second time.

Thirdly, the beneficial effects of the invention are: 1. the metal hollow column can be clamped and fixed in multiple directions, so that the inner wall of the metal hollow column can be polished conveniently; the distance between the fan-shaped polishing plate and the fixed plate can be adjusted according to the inner diameter of the metal hollow column, and then the fan-shaped polishing plate is used for carrying out rotary polishing treatment on the inner wall of the metal hollow column, so that the polishing effect on the metal hollow column can be enhanced, and polishing scratches can be reduced; the invention can collect the scraps generated by polishing the metal hollow column, thereby being capable of recycling the scraps for the second time.

2. The clamping unit can drive the linkage block to rotate along the annular groove through the annular frame, so that the linkage block drives the fan-shaped clamping block and the auxiliary pad to abut against the metal hollow column through the execution rod, the metal hollow column is clamped and fixed in multiple directions, and the inner wall of the metal hollow column is polished conveniently.

3. The polishing unit provided by the invention can enable the second motor to drive the fixed plate to rotate through the supporting column, the fixed plate drives the fan-shaped polishing plate to rotate through the connecting component, so that the fan-shaped polishing plate can carry out rotating polishing treatment on the inner wall of the metal hollow column, and the supporting column drives the fan-shaped polishing plate to move up and down in a reciprocating manner through the fixed plate during the rotating polishing treatment, so that the inner wall of the metal hollow column can be subjected to rotating polishing treatment, the polishing effect on the metal hollow column can be enhanced, and polishing scratches can be reduced.

4. The connecting assembly provided by the invention can enable the supporting rod to move along the axis direction of the fixed rod under the action of the matching of the positioning pin and the sliding groove through rotating the threaded rod, so that the distance between the fan-shaped polishing plate and the fixed plate can be adjusted according to the inner diameter of the metal hollow column, the fan-shaped polishing plate is convenient to abut against the inner wall of the metal hollow column, the polishing effect on the metal hollow column can be enhanced, polishing scratches can be reduced, and the adjustment accuracy of the distance between the fan-shaped polishing plate and the fixed plate can be ensured through matching of scale marks and the marking ruler.

5. The collection assembly is convenient for guiding scraps generated by polishing the metal hollow column into the collection cavity through the blanking hole, can prevent the scraps from being accumulated in the placement hole to influence the later-stage processing of the metal hollow column, and can recycle the scraps for the second time.

6. The linkage block can enable the fan-shaped clamping block to abut against the metal hollow column through the execution rod, so that the fan-shaped clamping block can clamp and fix the metal hollow column through the auxiliary pad conveniently, the friction force between the fan-shaped clamping block and the inner wall of the metal hollow column can be increased through the auxiliary pad, and the fixing effect of the fan-shaped clamping block on the metal hollow column can be enhanced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a partial cutaway view of the present invention.

Fig. 2 is a top view of the present invention.

FIG. 3 is a cross-sectional view taken along line T-T of FIG. 2 of the present invention.

Fig. 4 is a partial perspective view of the chucking unit of the present invention.

Fig. 5 is a partial enlarged view of fig. 1 a of the present invention.

Fig. 6 is a partial enlarged view of the present invention at B of fig. 2.

Fig. 7 is a schematic perspective view of a sector polishing plate according to the present invention.

Figure 8 is a cut-away view of the base and collection assembly of the present invention.

In the figure: 1. a base; 11. placing holes; 2. a chucking unit; 21. an annular groove; 22. a limiting chute; 23. a first motor; 24. a linkage gear; 25. an annular frame; 26. fixing gear teeth; 27. a linkage block; 28. an actuating lever; 29. a clamping block; 291. an auxiliary pad; 20. a retraction spring; 3. a polishing unit; 31. positioning the air cylinder; 32. a support plate; 33. a second motor; 34. a support pillar; 35. a fixing plate; 36. a connecting assembly; 361. fixing the rod; 362. a threaded rod; 363. a support bar; 364. adjusting the turntable; 365. an L-shaped rod; 366. a sliding groove; 367. positioning pins; 368. scale marking; 369. a scale; 37. a fan-shaped polishing plate; 371. a telescopic block; 372. a fixed block; 373. fine sand paper; 374. an L-shaped plate; 375. a brush; 38. a collection assembly; 381. a support plate; 382. a blanking hole; 383. an annular seat; 384. a collection chamber; 6. a metal hollow column.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1 and 2, the polishing machine for the inner wall of the metal product comprises a base 1, a clamping unit 2 and a polishing unit 3, wherein a placing hole 11 is formed in the upper end of the base 1, the clamping unit 2 is installed on the base 1, and the polishing unit 3 is arranged at the upper end of the base 1.

Referring to fig. 1, 3 and 4, the clamping unit 2 includes an annular groove 21, a limit chute 22, a first motor 23, a linkage gear 24, an annular frame 25, a fixed gear 26, a linkage block 27, an actuating rod 28, a fan-shaped clamping block 29 and a retraction spring 20, wherein: the ring channel 21 is formed in the base 1, the side, close to the placing hole 11, of the ring channel 21 is uniformly provided with a plurality of limiting sliding grooves 22 along the circumferential direction of the ring channel, the motor 23 is installed at the left end of the base 1 through a motor base, the output end of the motor 23 is fixedly sleeved with the linkage gear 24, the right side of the linkage gear 24 penetrates through the base 1 and extends into the ring channel 21, the ring frame 25 is rotatably arranged in the ring channel 21, one side, close to the placing hole 11, of the ring frame 25 is uniformly and fixedly provided with the linkage block 27 corresponding to the placing hole 11 along the circumferential direction of the ring frame, one side, close to the actuating rod 28, of the linkage block 27 is an inclined plane, one side, far away from the placing hole 11, of the ring frame 25 is uniformly provided with the fixed gear teeth 26 meshed with the linkage gear 24 along the circumferential direction of the ring frame, one end of the actuating rod 28 slides and butts against one side, far away from the ring frame 25, the other end of the linkage block 27, the other end of the actuating rod 28 extends into the limiting sliding and is fixedly provided with the fan-shaped clamping block arranged in the limiting sliding grooves 22 29, the contact area between the fan-shaped clamping block 29 and the metal hollow column 6 can be increased, so that the fixing effect on the metal hollow column 6 can be increased, and a contraction spring 20 is fixedly arranged between the fan-shaped clamping block 29 and the limiting sliding groove 22; the end of the fan-shaped clamping block 29 away from the retraction spring 20 is clamped with an auxiliary pad 291.

During specific work, firstly, the metal hollow column 6 to be processed is installed in the placing groove, then the first motor 23 is started, the first motor 23 drives the linkage gear 24 to rotate, the linkage gear 24 drives the annular frame 25 to rotate through the fixed gear meshed with the linkage gear, so that the annular frame 25 drives the linkage block 27 to rotate along the annular groove 21, at the moment, the linkage block 27 can push the execution rod 28 to one side close to the placing hole 11 through the inclined surface, the fan-shaped clamping block 29 can be abutted against the metal hollow column 6 through the execution rod 28, the fan-shaped clamping block 29 is convenient to clamp and fix the metal hollow column 6 through the auxiliary pad 291, the friction force between the fan-shaped clamping block 29 and the inner wall of the metal hollow column 6 can be increased through the auxiliary pad 291, the fixing effect of the fan-shaped clamping block 29 on the metal hollow column 6 can be enhanced, and the fan-shaped clamping block 29 can clamp and fix the metal hollow column 6 in multiple directions through the auxiliary pad 291, the polishing treatment of the inner wall of the metal hollow column 6 is convenient.

Referring to fig. 1, 2, 3, and 7, the polishing unit 3 includes a positioning cylinder 31, a supporting plate 32, a second motor 33, a supporting column 34, a fixing plate 35, a connecting assembly 36, a sector polishing plate 37, and a collecting assembly 38, wherein: the upper end of the base 1 is provided with positioning cylinders 31 in bilateral symmetry by taking the placing hole 11 as a center, a bearing plate 32 is arranged at a telescopic end at the upper side of the positioning cylinder 31, a second motor 33 is arranged at the center of the upper end of the bearing plate 32 through a motor cover, a support column 34 is arranged at an output end at the lower side of the second motor 33 through the bearing plate 32, a fixing plate 35 is fixedly arranged at an output end at the lower side of the support column 34, a fan-shaped polishing plate 37 is uniformly arranged at the outer side of the fixing plate 35 through a connecting assembly 36 along the periphery thereof, one side of the lower end of the fan-shaped polishing plate 37, which is far away from the connecting assembly 36, is provided with a chamfer, so that the fan-shaped polishing plate 37 can be conveniently inserted into the inner side of the metal hollow column 6, the fan-shaped polishing plate 37 can increase the contact area with the inner wall of the metal hollow column 6, thereby enhancing the polishing effect on the inner wall of the metal hollow column 6, and telescopic blocks 371 are symmetrically arranged at one end of the fan-shaped polishing plate 37, which is far away from the fixing plate 35, along the two sides thereof, fixing blocks 372 are symmetrically arranged at one end, away from the fixing plate 35, of the fan-shaped polishing plate 37 along the middle part of the fan-shaped polishing plate, fine sand paper 373 is detachably arranged at one ends, away from the fan-shaped polishing plate 37, of the fixing blocks 372 and the telescopic blocks 371, L-shaped plates 374 are symmetrically arranged on the outer wall of the fan-shaped polishing plate 37, and brushes 375 are uniformly arranged at one ends, away from the fixing plate 35, of the L-shaped plates 374; the fixing block 372 drives the fine sand paper 373 to polish the inner wall of the metal hollow column 6, and the fine sand paper 373 is convenient to detach and replace, in the meantime, the telescopic block 371 can push and contact the fine sand paper 373 to the outside, so as to pre-polish the protrusion on the inner wall of the metal hollow column 6, thereby enhancing the polishing effect, meanwhile, the fine abrasive paper 373 is attached to the outer side of the structure consisting of the polishing plate 37, the telescopic block 371 and the fixed block 372, so that the lower end of the fine abrasive paper 373 is inclined, therefore, when the polishing plate 37 moves downwards, the fine sand paper 373 can pre-polish the inner side surface of the metal hollow column 6, so as to prevent the protrusion on the inner side surface of the metal hollow column 6 from obstructing the downward movement of the structure consisting of the polishing plate 37, the telescopic block 371 and the fixed block 372, the scraps generated by polishing the inner wall of the metal hollow column 6 can be brushed away by the brush 375, so that the condition that the scraps are adhered to the inner wall of the metal hollow column 6 is avoided; the collection member 38 is disposed at the lower side of the inner wall of the placement hole 11.

During specific work, after the clamping unit 2 finishes fixing the metal hollow column 6, firstly, the positioning cylinder 31 is started, the positioning cylinder 31 drives the supporting plate 32 to move downwards, the supporting plate 32 drives the fan-shaped polishing plate 37 to extend to the inner wall of the metal hollow column 6 through the supporting column 34, then, the connecting assembly 36 adjusts the distance between the fan-shaped polishing plate 37 and the fixing plate 35 according to the inner diameter of the metal hollow column 6, so that the fan-shaped polishing plate 37 is abutted against the inner wall of the metal hollow column 6, then, the second motor 33 is started, the second motor 33 drives the fixing plate 35 to rotate through the supporting column 34, the fixing plate 35 drives the fan-shaped polishing plate 37 to rotate through the connecting assembly 36, so that the fan-shaped polishing plate 37 performs rotating polishing treatment on the inner wall of the metal hollow column 6, meanwhile, the positioning cylinder 31 drives the fan-shaped polishing plate 37 to perform vertical reciprocating movement through the supporting plate 32 and the supporting column 34, thereby, the inner wall of the metal hollow column 6 can be subjected to rotating polishing treatment, and the polishing effect on the metal hollow column 6 can be enhanced.

Referring to fig. 5 and 6, the connection assembly 36 includes a fixing rod 361, a threaded rod 362, a support rod 363, an adjustment dial 364, an L-shaped rod 365, a sliding groove 366 and a positioning pin 367, wherein: a fixing rod 361 is installed on the outer side of the fixing plate 35, a threaded rod 362 is rotatably arranged at one end, far away from the fixing plate 35, of the fixing rod 361, a supporting rod 363 is installed at one end, far away from the fixing rod 361, of the threaded rod 362 in a threaded connection mode, one end, far away from the threaded rod 362, of the supporting rod 363 is connected with the fan-shaped polishing plate 37, an adjusting turntable 364 is fixedly sleeved on one side, near the fixing rod 361, of the outer side of the threaded rod 362, a vertical section of an L-shaped rod 365 is fixedly installed on the outer side of the fixing rod 361, a horizontal section of the L-shaped rod 365 is close to one side of the supporting rod 363, a sliding groove 366 is formed in the horizontal section of the L-shaped rod 365, scale marks 368 are symmetrically and uniformly installed on the horizontal section of the L-shaped rod 365 by taking the sliding groove 366 as a center, a positioning pin 367 is fixedly installed on the supporting rod 363, and a scale 369 matched with the scale marks 368 is symmetrically installed on one side, far away from the positioning pin 367 of the supporting rod 363; the positioning pin 367 is slidably disposed in the sliding groove 366, and the support rod 363 can move along the axial direction of the threaded rod 362 without rotating through the sliding fit between the positioning pin 367 and the sliding groove 366.

During specific work, after the fan-shaped polishing plate 37 moves to the inner wall of the hollow metal column 6, the adjusting turntable 364 is rotated, the adjusting turntable 364 is made to drive the threaded rod 362 to rotate, at the moment, the supporting rod 363 moves towards one side close to the fixing rod 361 or towards one side far away from the fixing rod 361 under the action of the positioning pin 367 matched with the sliding groove 366, so that the distance between the fan-shaped polishing plate 37 and the fixing plate 35 can be adjusted through the supporting rod 363 according to the inner diameter of the hollow metal column 6, the fan-shaped polishing plate 37 is made to abut against the inner wall of the hollow metal column 6 conveniently, the polishing effect on the hollow metal column 6 can be enhanced, during the period, the distance between the supporting rod 363 and the fixing rod 361 can be observed conveniently through the scale mark 368 matched with the marking ruler, and the adjustment accuracy of the distance between the fan-shaped polishing plate 37 and the fixing plate 35 can be ensured.

Referring to fig. 3 and 8, the collection assembly 38 includes a support plate 381, a blanking aperture 382, an annular seat 383, and a collection chamber 384, wherein: the supporting plate 381 is installed on the lower side of the inner wall of the placing hole 11, a blanking hole 382 is formed in the center of the supporting plate 381, and the blanking hole 382 is a conical hole with the diameter gradually decreasing from top to bottom; the diameter of the upper side of the blanking hole 382 is larger than that of the inner annular wall of the annular seat 383, so that scraps generated by polishing the metal hollow column 6 can be conveniently guided into the collecting cavity 384 through the blanking hole 382, and the scraps can be prevented from being accumulated in the placing hole 11 to influence the later processing of the metal hollow column 6; the upper end of the supporting hole is fixedly provided with an annular seat 383, and the lower end of the supporting plate 381 is clamped with a collecting cavity 384; in specific operation, when the metal hollow column 6 is installed in the placing hole 11, the metal hollow column 6 can be supported upwards through the annular seat 383, so that the clamping unit 2 can clamp and fix the metal hollow column 6 conveniently, and then debris generated by the polishing unit 3 during polishing of the inner wall of the metal hollow column 6 falls into the collecting cavity 384 through the blanking hole 382; after polishing of the metal hollow column 6 is completed, the collection chamber 384 is removed and the debris in the collection chamber is poured out, so that the debris can be recycled for a second time.

During operation, the first step: firstly, a metal hollow column 6 to be processed is installed in a placing groove, then a motor 23 is started, the motor 23 drives a linkage gear 24 to rotate, the linkage gear 24 drives an annular frame 25 to rotate through a fixed gear meshed with the linkage gear, so that the annular frame 25 drives a linkage block 27 to rotate along an annular groove 21, the linkage block 27 can push an execution rod 28 to one side close to a placing hole 11 through an inclined surface, a fan-shaped clamping block 29 can be abutted against the metal hollow column 6 through the execution rod 28, the fan-shaped clamping block 29 is convenient to clamp and fix the metal hollow column 6 through an auxiliary pad 291, the friction force between the fan-shaped clamping block 29 and the inner wall of the metal hollow column 6 can be increased through the auxiliary pad 291, the fixing effect of the fan-shaped clamping block 29 on the metal hollow column 6 can be enhanced, and the fan-shaped clamping block 29 can clamp and fix the metal hollow column 6 in multiple directions through the auxiliary pad 291, the polishing treatment of the inner wall of the metal hollow column 6 is convenient.

The second step is that: the positioning cylinder 31 is started, the positioning cylinder 31 drives the supporting plate 32 to move downwards, the supporting plate 32 drives the fan-shaped polishing plate 37 to extend to the inner wall of the metal hollow column 6 through the supporting column 34, then the adjusting dial 364 is rotated to make the adjusting dial 364 drive the threaded rod 362 to rotate, at this time, the supporting rod 363 moves towards the side close to the fixed rod 361 or towards the side far from the fixed rod 361 under the action of the positioning pin 367 matching with the sliding groove 366, so that the distance between the fan-shaped polishing plate 37 and the fixing plate 35 can be adjusted by the support rod 363 according to the inner diameter of the metal hollow column 6, the fan-shaped polishing plate 37 is convenient to abut against the inner wall of the metal hollow column 6, the polishing effect on the metal hollow column 6 can be enhanced, during the period, the distance between the supporting rod 363 and the fixing rod 361 can be observed conveniently by matching the scale mark 368 with the scale, so that the accuracy of adjusting the distance between the fan polishing plate 37 and the fixed plate 35 can be ensured.

The third step: starting No. two motor 33, No. two motor 33 pass through support column 34 and drive fixed plate 35 and rotate, fixed plate 35 passes through coupling assembling 36 and drives fan-shaped polishing plate 37 and rotate, make fan-shaped polishing plate 37 rotate the polishing to the inner wall of the hollow post of metal 6 and handle, meanwhile, location cylinder 31 drives fan-shaped polishing plate 37 through bearing board 32 and support column 34 and carries out up-and-down reciprocating motion, thereby can rotate the polishing to the inner wall of the hollow post of metal 6 and handle, can strengthen the polishing effect to the hollow post of metal 6.

The fourth step: when the metal hollow column 6 is installed in the placing hole 11, the metal hollow column 6 can be supported upwards through the annular seat 383, so that the clamping unit 2 can clamp and fix the metal hollow column 6 conveniently, and then, debris generated when the polishing unit 3 polishes the inner wall of the metal hollow column 6 falls into the collecting cavity 384 through the blanking hole 382; after polishing of the metal hollow column 6 is completed, the collection chamber 384 is removed and the debris in the collection chamber is poured out, so that the debris can be recycled for a second time.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.