Metal rod polishing equipment

Abstract

The utility model belongs to the field of polishing equipment, particularly relates to metal rod polishing equipment, and aims to solve the problems that the appearance quality of a metal rod is reduced and the corrosion resistance of the metal rod is influenced as the conventional polishing equipment cannot polish the inside and the outside of the metal rod at the same time. A placement frame is fixedly arranged at the top of the working box and located at the tail end of the first sliding rail; the first polishing assembly is arranged on the first sliding frame and used for polishing the interior of the metal rod; the second polishing assembly is arranged on the second sliding frame and used for polishing the outer portion of the metal rod. The first polishing assembly and the second polishing assembly are arranged in a matched mode, the interior and the exterior of the metal rod can be polished at the same time, and therefore the appearance quality of the metal rod is improved, the service life of the metal rod is prolonged, the cleanliness of the metal rod is improved, and heat transfer efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing equipment, in particular to a metal rod polishing equipment. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and smooth surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing media.

[0003] A metal rod outer surface polishing device proposed by the search authorization announcement number CN112975724A includes a mounting tube, a base, a rotating shaft, a transmission pulley, a covering plate and a polishing mechanism; the base is evenly and horizontally placed on the ground, and the inner part of the base is rotatably connected to the rotating shaft; the rotating shaft is driven by a motor, and the outer surface of the rotating shaft is rotatably connected to the transmission pulley; the upper end of the transmission pulley is rotatably installed in the inner wall of the covering plate, and the upper end of the transmission pulley is rotatably connected to the outer surface of the mounting tube; the covering plate is fixedly connected to the upper surface of the base; the mounting tube is rotatably connected to the inner wall of the covering plate; the transmission pulley starts to rotate under the drive of the motor, and then drives the mounting tube to rotate, so that the polishing plate starts to generate rotational friction with the outer surface of the metal rod, which not only greatly increases the polishing area of ​​the metal rod and improves the polishing efficiency, but also can polish metal rods of different diameters, greatly improving the practicability of the device.

[0004] However, there are still the following defects:

[0005] 1. The polishing equipment in the above application can only polish the outside of the metal rod, but cannot polish the inside and outside of the metal rod at the same time, which reduces the appearance quality of the metal rod and affects the corrosion resistance of the metal rod. Utility Model Content

[0006] The utility model aims to solve the problem that the inside and outside of a metal rod cannot be polished simultaneously in the prior art, which reduces the appearance quality of the metal rod and affects the corrosion resistance of the metal rod, and proposes a metal rod polishing device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A metal rod polishing device, comprising:

[0009] A working box, wherein two No. 1 slide rails are symmetrically fixedly arranged on one side of the top of the working box, and the tops of the two No. 1 slide rails are slidably provided with a same No. 1 slide rack, a placement rack is fixedly arranged at the end of the No. 1 slide rail on the top of the working box, and two No. 2 slide rails are symmetrically fixedly arranged on the top of the working box next to the placement rack, and the tops of the two No. 2 slide rails are slidably provided with a same No. 2 slide rack;

[0010] a first polishing assembly, the first polishing assembly being disposed on the first slide and being used for polishing the inside of the metal rod;

[0011] The second polishing assembly is arranged on the second slide and is used for polishing the outside of the metal rod.

[0012] In a possible design, the first polishing assembly includes a No. 1 motor fixedly arranged on one side of a No. 1 slide, a No. 1 driving pulley is fixedly arranged on the outside of the No. 1 motor output shaft, the No. 1 slide is located below the No. 1 motor and has two No. 1 bearing frames fixedly arranged symmetrically, the inner rings of the two No. 1 bearing frames are rotatably provided with a same connecting rod, a No. 1 driven pulley is fixedly arranged at one end of the connecting rod located at the No. 1 driving pulley, the No. 1 driving pulley and the No. 1 driven pulley are externally sleeved with the same No. 1 belt, and a No. 1 polishing wheel is fixedly arranged on the other end of the connecting rod.

[0013] In one possible design, the second polishing assembly includes a No. 2 motor fixedly arranged on one side of a No. 2 slide, a No. 2 driving pulley is fixedly arranged on the outside of the No. 2 motor output shaft, two No. 2 bearing frames are symmetrically fixedly arranged on the other side of the No. 2 slide, the inner rings of the two No. 2 bearing frames are rotatably provided with a same rotating rod, a No. 2 driven pulley is fixedly arranged at one end of the rotating rod located at the No. 2 driving pulley, the No. 2 driven pulley and the No. 2 driving pulley are externally sleeved with the same No. 2 belt, and a No. 2 polishing wheel is fixedly arranged on the outside of the rotating rod located between the two No. 2 bearing frames.

[0014] In a possible design, two No. 1 bearing brackets are symmetrically fixed between the two No. 1 slide rails, and the same reciprocating screw is rotatably arranged on the side of the two No. 1 bearing brackets close to each other, the bottom of the No. 1 slide is threadedly connected to the reciprocating screw, and a No. 3 motor is fixedly arranged on one side of the No. 1 bearing bracket, and one end of the No. 3 motor output shaft is fixedly connected to the reciprocating screw.

[0015] In a possible design, two No. 2 bearing brackets are symmetrically fixed between the two No. 2 slide rails, and the same threaded rod is rotatably arranged on one side of the two No. 2 bearing brackets close to each other, and a No. 1 hand wheel is fixedly arranged on one end of the threaded rod extending to the outside of the No. 2 bearing bracket, and the bottom of the No. 2 slide is threadedly connected to the threaded rod.

[0016] In a possible design, two movable racks are symmetrically slidably arranged inside the placement rack, and No. 3 bearing racks are fixedly arranged at both ends of the movable rack that slides through the top of the placement rack, and the same roller is rotatably arranged on one side of the two No. 3 bearing racks located on the top of the same movable rack that are close to each other, and a bidirectional screw rod is rotatably arranged inside the placement rack, and the bidirectional screw rod is threadedly connected to the two movable racks respectively, and a No. 2 hand wheel is fixedly arranged on one end of the bidirectional screw rod that rotatably passes through the outside of the placement rack.

[0017] In a possible design, a support frame is fixedly installed on the top of the working box next to the placement frame, an electric push rod is fixedly installed on the top of the support frame, a connecting frame is fixedly installed on the output end of the electric push rod, and a roller is rotatably installed on the connecting frame.

[0018] In a possible design, a control console is disposed on the top of the working box, and the bottom of the working box is rectangular and fixed with four universal brake wheels.

[0019] The polishing device is first turned clockwise, and the second hand wheel is rotated. At the same time, the two hand wheels drive the movable frame to move toward the side close to each other through the bidirectional screw rod. The two movable frames move toward each other and drive the two rollers to move synchronously. The distance between the two rollers is adjusted according to the corresponding size of the metal rod. After the adjustment, the rotation of the second hand wheel is stopped so that the device can adapt to metal rods of different sizes. After the metal rod is placed, the electric push rod is started through the button on the control panel. The output end of the electric push rod pushes the connecting frame and the roller thereon to move downward until the roller fits with the surface of the metal rod, completing the limit of the metal rod to prevent the metal rod from shaking during the rotation polishing process, resulting in uneven polishing. Then the number one hand wheel is turned clockwise. At the same time, the number one hand wheel drives the threaded rod to rotate on the number two bearing bracket, thereby driving the number two slide and the second polishing assembly thereon. When the second polishing wheel is in contact with the surface of the metal rod, the rotation of the first hand wheel is stopped, and then the buttons on the control panel start the first motor and the second motor at the same time. When the first motor is started, it drives the first driving pulley to rotate through the output shaft. When the first driving pulley rotates, it drives the first driven pulley to rotate through the first belt, thereby driving the connecting rod to rotate on the first bearing frame. When the connecting rod rotates, it drives the first polishing wheel to rotate synchronously. When the second motor is started, it drives the second driving pulley to rotate through the output shaft. When the second driving pulley rotates, it drives the second driven pulley to rotate through the second belt, thereby driving the rotating rod to rotate on the second bearing frame. When the rotating rod rotates, it drives the second polishing wheel to rotate synchronously. The second polishing wheel rotates to polish the outside of the metal rod. At this time, the third motor is started, and the output shaft of the third motor drives the reciprocating screw to rotate on the first bearing bracket, thereby driving the first slide and the first polishing assembly thereon to move toward the metal rod on the first slide rail, thereby polishing the inside of the metal rod.

[0020] In the utility model, the metal rod polishing device, through the setting of the first polishing assembly, when the No. 1 motor is started, the No. 1 driving pulley is driven to rotate through the output shaft, and when the No. 1 driving pulley rotates, the No. 1 driven pulley is driven to rotate through the No. 1 belt, thereby driving the connecting rod to rotate on the No. 1 bearing frame, and when the connecting rod rotates, the No. 1 polishing wheel is driven to rotate synchronously, thereby performing a polishing operation on the inside of the metal rod;

[0021] In the utility model, the metal rod polishing device, through the setting of the second polishing assembly, the second motor is started and the second driving pulley is driven to rotate through the output shaft, and the second driving pulley is driven to rotate through the second belt while the second driving pulley is rotated, thereby driving the rotating rod to rotate on the second bearing frame, and the rotating rod drives the second polishing wheel to rotate synchronously while the rotating rod rotates, and the second polishing wheel rotates to perform polishing operation on the outside of the metal rod;

[0022] The utility model can polish the inside and outside of the metal rod simultaneously through the matching arrangement between the first polishing component and the second polishing component, thereby improving the appearance quality of the metal rod, extending its service life, increasing its cleanliness and improving the heat transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall main structure of a metal rod polishing device proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the overall side view structure of a metal rod polishing device proposed by the utility model;

[0025] Figure 3 This is a schematic structural diagram of a first polishing component of a metal rod polishing device proposed by the utility model;

[0026] Figure 4 This is a schematic structural diagram of a second polishing assembly of a metal rod polishing device proposed by the utility model;

[0027] Figure 5 The utility model discloses a cross-sectional structural diagram of a placement frame of a metal rod polishing device.

[0028] In the figure: 1, working box; 2, slide rail No. 1; 3, slide frame No. 1; 4, motor No. 1; 401, driving pulley No. 1; 5, bearing frame No. 1; 501, connecting rod; 502, driven pulley No. 1; 6, belt No. 1; 7, polishing wheel No. 1; 8, bearing bracket No. 1; 801, motor No. 3; 9, reciprocating screw; 10, slide rail No. 2; 11, slide frame No. 2; 12, motor No. 2; 1201, driving pulley No. 2; 13, bearing frame No. 2; 1301, Rotating rod; 1302, driven pulley No. 2; 14, belt No. 2; 15, polishing wheel No. 2; 16, bearing bracket No. 2; 17, threaded rod; 18, hand wheel No. 1; 19, placement rack; 1901, moving rack; 20, two-way screw rod; 2001, hand wheel No. 2; 21, bearing rack No. 3; 2101, rotating roller; 22, supporting rack; 2201, electric push rod; 2202, connecting rack; 2203, roller; 23, universal brake wheel; 24, control panel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Embodiment 1

[0031] Reference Figure 1-5 , a metal rod polishing device, which is used in the technical field of metal rod polishing devices, including:

[0032] A working box 1, two No. 1 slide rails 2 are symmetrically fixedly arranged on one side of the top of the working box 1, and a same No. 1 slide frame 3 is slidably arranged on the top of the two No. 1 slide rails 2, a placement rack 19 is fixedly arranged at the end of the No. 1 slide rail 2 on the top of the working box 1, and two No. 2 slide rails 10 are symmetrically fixedly arranged on the top of the working box 1 next to the placement rack 19, and a same No. 2 slide frame 11 is slidably arranged on the top of the two No. 2 slide rails 10;

[0033] A first polishing assembly, which is disposed on the first slide 3 and is used to polish the inside of the metal rod;

[0034] The second polishing assembly is arranged on the second slide 11 and is used for polishing the outside of the metal rod.

[0035] The above technical scheme can achieve the following: through the setting of the No. 1 slide rail 2, the movement of the No. 1 slide 3 and the first polishing assembly is facilitated; through the setting of the No. 1 slide 3, the installation of the first polishing assembly is facilitated; through the setting of the No. 2 slide rail 10, the movement of the No. 2 slide 11 and the second polishing assembly is facilitated; through the setting of the No. 2 slide 11, the installation of the second polishing assembly is facilitated; through the coordinated setting between the first polishing assembly and the second polishing assembly, the inside and outside of the metal rod can be polished simultaneously, thereby improving the appearance quality of the metal rod, extending its service life, increasing its cleanliness and improving the heat transfer efficiency.

[0036] Reference Figure 2-3 The first polishing assembly includes a No. 1 motor 4 fixedly arranged on one side of the No. 1 slide 3, a No. 1 driving pulley 401 is fixedly arranged on the outside of the output shaft of the No. 1 motor 4, the No. 1 slide 3 is located below the No. 1 motor 4 and is symmetrically fixed with two No. 1 bearing frames 5, the inner rings of the two No. 1 bearing frames 5 are rotatably provided with a same connecting rod 501, the connecting rod 501 is located at one end of the No. 1 driving pulley 401 and is fixedly provided with a No. 1 driven pulley 502, the outer sides of the No. 1 driving pulley 401 and the No. 1 driven pulley 502 are sleeved with the same No. 1 belt 6, and a No. 1 polishing wheel 7 is fixedly arranged on the other end of the connecting rod 501.

[0037] The above technical scheme can achieve the setting of No. 1 motor 4, No. 1 driving pulley 401, No. 1 driven pulley 502, No. 1 belt 6 and No. 1 polishing wheel 7. When No. 1 motor 4 is started, it drives No. 1 driving pulley 401 to rotate through the output shaft. When No. 1 driving pulley 401 rotates, it drives No. 1 driven pulley 502 to rotate through No. 1 belt 6, thereby driving the connecting rod 501 to rotate on the No. 1 bearing frame 5. When the connecting rod 501 rotates, it drives No. 1 polishing wheel 7 to rotate synchronously, thereby polishing the inside of the metal rod, thereby improving the cleanliness and corrosion resistance of the inside of the metal rod.

[0038] Reference Figure 4 The second polishing assembly includes a No. 2 motor 12 fixedly arranged on one side of the No. 2 slide 11, a No. 2 driving pulley 1201 is fixedly arranged on the outside of the output shaft of the No. 2 motor 12, and two No. 2 bearing frames 13 are symmetrically fixedly arranged on the other side of the No. 2 slide 11, and the inner rings of the two No. 2 bearing frames 13 are rotatably provided with a same rotating rod 1301, a No. 2 driven pulley 1302 is fixedly arranged at one end of the rotating rod 1301 located at the No. 2 driving pulley 1201, the No. 2 driven pulley 1302 and the No. 2 driving pulley 1201 are sleeved with the same No. 2 belt 14, and a No. 2 polishing wheel 15 is fixedly arranged on the outside of the rotating rod 1301 located between the two No. 2 bearing frames 13.

[0039] The above technical scheme can achieve the setting of the No. 2 motor 12, the No. 2 driven pulley 1302, the No. 2 driving pulley 1201, the No. 2 belt 14 and the No. 2 polishing wheel 15. When the No. 2 motor 12 is started, the No. 2 driving pulley 1201 is driven to rotate through the output shaft. When the No. 2 driving pulley 1201 rotates, the No. 2 driven pulley 1302 is driven to rotate through the No. 2 belt 14, thereby driving the rotating rod 1301 to rotate on the No. 2 bearing frame 13. When the rotating rod 1301 rotates, the No. 2 polishing wheel 15 is driven to rotate synchronously. The No. 2 polishing wheel 15 rotates to polish the outside of the metal rod, thereby improving the cleanliness and anti-corrosion performance of the outside of the metal rod. The No. 2 polishing wheel 15 is larger than the No. 1 polishing wheel 7.

[0040] Embodiment 2

[0041] refer to Figure 3 On the basis of the first embodiment, the second embodiment also includes: two No. 1 bearing brackets 8 are symmetrically fixedly arranged between the two No. 1 slide rails 2, and the same reciprocating screw 9 is rotatably arranged on the side where the two No. 1 bearing brackets 8 are close to each other, the bottom of the No. 1 slide 3 is threadedly connected to the reciprocating screw 9, and a No. 3 motor 801 is fixedly arranged on one side of the No. 1 bearing bracket 8, and one end of the output shaft of the No. 3 motor 801 is fixedly connected to the reciprocating screw 9.

[0042] The above technical solution can be achieved through the setting of the No. 3 motor 801, the reciprocating screw 9 and the No. 1 bearing bracket 8. The output shaft of the No. 3 motor 801 drives the reciprocating screw 9 to rotate on the No. 1 bearing bracket 8, thereby driving the No. 1 slide 3 and the first polishing assembly thereon to move toward the direction of the metal rod on the No. 1 slide rail 2, thereby polishing the inside of the metal rod. The setting of the reciprocating screw 9 allows the first polishing assembly to move back and forth, thereby reciprocatingly polishing the inside of the metal rod, thereby improving the thoroughness of the polishing.

[0043] Reference Figure 4 Two No. 2 bearing brackets 16 are symmetrically fixed between the two No. 2 slide rails 10, and the same threaded rod 17 is rotatably set on the side of the two No. 2 bearing brackets 16 close to each other. A No. 1 hand wheel 18 is fixed on one end of the threaded rod 17 extending to the outside of the No. 2 bearing bracket 16, and the bottom of the No. 2 slide 11 is threadedly connected to the threaded rod 17.

[0044] The above technical solution can achieve the setting of the No. 1 hand wheel 18, the threaded rod 17 and the No. 2 bearing bracket 16, and rotate the No. 1 hand wheel 18 clockwise. While the No. 1 hand wheel 18 rotates, it drives the threaded rod 17 to rotate on the No. 2 bearing bracket 16, thereby driving the No. 2 slide 11 and the second polishing assembly thereon to approach the metal rod on the No. 2 slide rail 10. When the No. 2 polishing wheel 15 fits the surface of the metal rod, the rotation of the No. 1 hand wheel 18 is stopped, which is convenient for adjustment according to the size of the metal rod, thereby improving the practicality of the equipment.

[0045] Reference Figure 5 Two moving frames 1901 are symmetrically slidably arranged inside the placement frame 19, and a No. 3 bearing frame 21 is fixedly arranged at both ends of the moving frame 19 that slides through the top of the placement frame 19, and a same roller 2101 is rotatably arranged on one side of the two No. 3 bearing frames 21 located on the top of the same moving frame 1901 that are close to each other, and a bidirectional screw rod 20 is rotatably arranged inside the placement frame 19, and the bidirectional screw rod 20 is respectively threadedly connected to the two moving frames 1901, and a No. 2 hand wheel 2001 is fixedly arranged on one end of the bidirectional screw rod 20 that rotates and passes through the outside of the placement frame 19.

[0046] The above technical solution can be achieved through the setting of the number two hand wheel 2001, the two-way screw 20, the movable frame 1901 and the roller 2101. First, the number two hand wheel 2001 is rotated clockwise. While the number two hand wheel 2001 rotates, the movable frame 1901 is driven to move toward the side close to each other through the two-way screw 20. While the two movable frames 1901 move toward each other, they drive the two rollers 2101 to move synchronously. The distance between the two rollers 2101 is adjusted according to the corresponding size of the metal rod. After the adjustment, the rotation of the number two hand wheel 2001 is stopped, so that the equipment can adapt to metal rods of different sizes.

[0047] Reference Figure 1-2 A support frame 22 is fixedly provided on the top of the working box 1 next to the placement frame 19, an electric push rod 2201 is fixedly provided on the top of the support frame 22, a connecting frame 2202 is fixedly provided on the output end of the electric push rod 2201, and a roller 2203 is rotatably provided on the connecting frame 2202.

[0048] The above technical solution can be achieved by setting the electric push rod 2201 and the roller 2203. The electric push rod 2201 can be started by the button on the control panel 24. The output end of the electric push rod 2201 pushes the connecting frame 2202 and the roller 2203 thereon to move downward until the roller 2203 fits with the surface of the metal rod, completing the positioning of the metal rod and preventing the metal rod from shaking during the rotation polishing process, resulting in uneven polishing. The support frame 22 is L-shaped.

[0049] Reference Figure 1-2 A control console 24 is provided on the top of the working box 1, and four universal brake wheels 23 are fixedly provided on the bottom of the working box 1 in a rectangular shape.

[0050] The above technical solution can be achieved through the setting of the control panel 24. The control panel 24 can control the start and shutdown of the electrical components on the equipment (such as the motor and electric push rod 2201 on the equipment), which is convenient for the control of the equipment and the operation of the user. Through the setting of the universal brake wheel 23, it is convenient to move the equipment, facilitate the movement and transportation of the equipment, and the universal brake wheel 23 is provided with a brake locking function, which is convenient for locking and fixing the position of the equipment.

[0051] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor, electric push rod 2201 and polishing wheel are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal rod polishing device, characterized in that: include: A working box (1), wherein two No. 1 slide rails (2) are symmetrically fixedly arranged on one side of the top of the working box (1), and the tops of the two No. 1 slide rails (2) are slidably provided with a same No. 1 slide frame (3), and a placement rack (19) is fixedly arranged at the end of the No. 1 slide rail (2) on the top of the working box (1), and two No. 2 slide rails (10) are symmetrically fixedly arranged on the top of the working box (1) next to the placement rack (19), and the tops of the two No. 2 slide rails (10) are slidably provided with a same No. 2 slide frame (11); A first polishing assembly, which is arranged on the first slide (3) and is used to polish the inside of the metal rod; The second polishing assembly is arranged on the second slide (11) and is used for polishing the outside of the metal rod.

2. A metal rod polishing device according to claim 1, characterized in that: The first polishing assembly comprises a No. 1 motor (4) fixedly arranged on one side of a No. 1 slide (3); a No. 1 driving pulley (401) is fixedly arranged outside the output shaft of the No. 1 motor (4); the No. 1 slide (3) is located below the No. 1 motor (4) and has two No. 1 bearing frames (5) fixedly arranged symmetrically; the inner rings of the two No. 1 bearing frames (5) are rotatably provided with a same connecting rod (501); a No. 1 driven pulley (502) is fixedly arranged at one end of the connecting rod (501) located on the No. 1 driving pulley (401); the No. 1 driving pulley (401) and the No. 1 driven pulley (502) are sleeved with a same No. 1 belt (6) outside; and a No. 1 polishing wheel (7) is fixedly arranged at the other end of the connecting rod (501).

3. A metal rod polishing device according to claim 1, characterized in that: The second polishing assembly comprises a No. 2 motor (12) fixedly arranged on one side of a No. 2 slide (11); a No. 2 driving pulley (1201) is fixedly arranged on the outside of the output shaft of the No. 2 motor (12); two No. 2 bearing frames (13) are symmetrically fixedly arranged on the other side of the No. 2 slide (11); the inner rings of the two No. 2 bearing frames (13) are rotatably provided with a same rotating rod (1301); a No. 2 driven pulley (1302) is fixedly arranged at one end of the rotating rod (1301) located at the No. 2 driving pulley (1201); the No. 2 driven pulley (1302) and the No. 2 driving pulley (1201) are sleeved with a No. 2 belt (14) on the outside; and a No. 2 polishing wheel (15) is fixedly arranged on the outside of the rotating rod (1301) located between the two No. 2 bearing frames (13).

4. A metal rod polishing device according to claim 2, characterized in that: Two No. 1 bearing brackets (8) are symmetrically fixedly arranged between the two No. 1 slide rails (2); a same reciprocating screw (9) is rotatably arranged on the side of the two No. 1 bearing brackets (8) close to each other; the bottom of the No. 1 slide (3) is threadedly connected to the reciprocating screw (9); a No. 3 motor (801) is fixedly arranged on one side of the No. 1 bearing bracket (8); and one end of the output shaft of the No. 3 motor (801) is fixedly connected to the reciprocating screw (9).

5. A metal rod polishing device according to claim 3, characterized in that: Two No. 2 bearing brackets (16) are symmetrically fixedly arranged between the two No. 2 slide rails (10); a same threaded rod (17) is rotatably arranged on one side of the two No. 2 bearing brackets (16) close to each other; a No. 1 hand wheel (18) is fixedly arranged on one end of the threaded rod (17) extending to the outside of the No. 2 bearing bracket (16); and the bottom of the No. 2 slide (11) is threadedly connected to the threaded rod (17).

6. A metal rod polishing device according to claim 1, characterized in that: Two movable racks (1901) are symmetrically slidably arranged inside the placement rack (19), and No. 3 bearing racks (21) are fixedly arranged at both ends of the movable rack (1901) that slides through the top of the placement rack (19), and a same roller (2101) is rotatably arranged on one side of the two No. 3 bearing racks (21) located on the top of the same movable rack (1901) that are close to each other, and a bidirectional screw rod (20) is rotatably arranged inside the placement rack (19), and the bidirectional screw rod (20) is respectively threadedly connected to the two movable racks (1901), and a No. 2 hand wheel (2001) is fixedly arranged on one end of the bidirectional screw rod (20) that rotatably passes through the outside of the placement rack (19).

7. A metal rod polishing device according to claim 1, characterized in that: A support frame (22) is fixedly arranged on the top of the working box (1) next to the placement frame (19), an electric push rod (2201) is fixedly arranged on the top of the support frame (22), a connecting frame (2202) is fixedly arranged at the output end of the electric push rod (2201), and a roller (2203) is rotatably arranged on the connecting frame (2202).

8. A metal rod polishing device according to claim 7, characterized in that: A control console (24) is arranged on the top of the working box (1), and four universal brake wheels (23) are fixedly arranged on the bottom of the working box (1) in a rectangular shape.

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