Automatic polishing device for stainless steel pipe

Abstract

The utility model relates to the technical field of stainless steel pipe automatic polishing, and discloses a stainless steel pipe automatic polishing device which comprises a main body assembly, a supporting column, a protective shell, a controller, a feeding port and a discharging port, the protective shell is fixed to the top of the supporting column, and the controller is fixed to one side of the protective shell; the feeding port is formed in one side of the protective shell, and the discharging port is located in one side of the protective shell. And the positioning assembly is arranged in the protective shell and comprises a positioning piece, a polishing piece and a fixing piece, the positioning piece is arranged in the protective shell, the polishing piece is located in the protective shell, and the fixing piece is arranged on one side of the protective shell.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic polishing of stainless steel pipes, in particular to an automatic polishing device for stainless steel pipes. Background Art

[0002] During the processing of stainless steel pipes, black and yellow oxide skins will appear. In order to improve the appearance and corrosion resistance of stainless steel pipes, the processed stainless steel pipes must be polished. At present, during the production and processing of stainless steel pipes, when polishing their surfaces, the main operation method is to clamp the steel pipes and slowly pass the steel pipes through the polishing equipment, so as to achieve the polishing work of the steel pipes. However, when polishing stainless steel pipes of different thicknesses, different polishing equipment needs to be replaced so that the polishing equipment can adapt to stainless steel pipes of different thicknesses, but this greatly increases the polishing time and polishing cost. Summary of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part as well as in the abstract of the specification and the title of the utility model of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] In view of the above and / or problems existing in the existing automatic polishing device for stainless steel pipes, the present utility model is proposed.

[0005] Therefore, the problem to be solved by the present utility model is that at present, during the production and processing of stainless steel pipes, when polishing their surfaces, the main operation method is to clamp the steel pipes and slowly pass the steel pipes through the polishing equipment, so as to achieve the polishing work of the steel pipes. However, when polishing stainless steel pipes of different thicknesses, different polishing equipment needs to be replaced so that the polishing equipment can adapt to stainless steel pipes of different thicknesses, but this greatly increases the polishing time and polishing cost.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: an automatic polishing device for stainless steel pipes, which includes a main body component, including a support column, a protective shell, a controller, a feed port and a discharge port, the protective shell is fixed on the top of the support column, the controller is fixed on one side of the protective shell, the feed port is arranged on one side of the protective shell, and the discharge port is located on one side of the protective shell; and,

[0007] a positioning component, arranged in the protective shell, including a positioning member, a polishing member and a fixing member, the positioning member is arranged in the protective shell, the polishing member is located in the protective shell, and the fixing member is arranged on one side of the protective shell.

[0008] As a preferred embodiment of the automatic polishing device for stainless steel pipes of the present utility model, wherein: the positioning member includes a fixing plate and a limiting rod, the fixing plate is fixed inside the protective shell, and the limiting rod slides inside the fixing plate.

[0009] As a preferred embodiment of the automatic polishing device for stainless steel pipes of the present utility model, wherein: the positioning member further includes a support block, a rotating wheel, and a positioning block, the support block is fixed at one end of the limiting rod, the rotating wheel is rotatably connected inside the support block, and the positioning block is fixed inside the protective shell.

[0010] As a preferred embodiment of the automatic polishing device for stainless steel pipes of the present utility model, wherein: the positioning member further includes a rotating rod, a rotating gear, and a rack, the rotating rod is rotatably connected inside the positioning block, the rotating gear is fixed on the surface of the rotating rod, the rack is fixed on one side of the support block, and the rack meshes with the rotating gear.

[0011] As a preferred embodiment of the automatic polishing device for stainless steel pipes of the present utility model, wherein: the polishing member includes a support plate, a rotating disk, and a toothed disk, the support plate is fixed inside the protective shell, the rotating disk is rotatably connected inside the support plate, and the toothed disk is rotatably connected on the surface of the rotating disk.

[0012] As a preferred embodiment of the automatic polishing device for stainless steel pipes of the present utility model, wherein: the polishing member further includes a rotating motor, a clamping disk, and a belt, the rotating motor is fixed inside the protective shell, the clamping disk is fixed at the output end of the rotating motor, and the belt is sleeved on the surfaces of the clamping disk and the rotating disk.

[0013] As a preferred embodiment of the automatic polishing device for stainless steel pipes of the present utility model, wherein: the polishing member further includes a fixing block, a sliding rod, a compression spring, a positioning spring, and a limiting block, the fixing block is fixed on one side of the rotating disk, the sliding rod slides inside the fixing block, one end of the compression spring is fixed on one side of the sliding rod, the other end of the compression spring is fixed on one side of the fixing block, the positioning spring is fixed inside the sliding rod, the limiting block slides inside the sliding rod, and the limiting block is fixed on one side of the positioning spring.

[0014] As a preferred solution of the automatic polishing device for stainless steel pipes of the present utility model, the following is provided: The polishing member further includes an extrusion block, a clamping gear, a pushing spring, and a polishing block. The extrusion block is fixed to one side of the tooth disc. The extrusion block is mutually clamped with the sliding rod. The clamping gear is rotatably connected to the surface of the rotating rod. The clamping gear is mutually meshed with the tooth disc. One end of the pushing spring is fixed to one side of the sliding rod. The polishing block is fixed to the other end of the pushing spring.

[0015] As a preferred solution of the automatic polishing device for stainless steel pipes of the present utility model, the following is provided: The fixing member includes a placing block, a rotating block, a pushing rod, a pushing block, and an extrusion spring. The placing block is fixed to one side of the protective shell. The rotating block is rotatably connected within the placing block. The pushing rod moves on the surface of the rotating rod. The pushing block is fixed to the surface of the pushing rod. One end of the extrusion spring is fixed to one side of the rotating block. The other end of the extrusion spring is fixed to one side of the pushing block.

[0016] As a preferred solution of the automatic polishing device for stainless steel pipes of the present utility model, the following is provided: The fixing member further includes a support rod, a clamping rod, a limiting block, and a reset spring. The support rod is fixed to one side of the protective shell. The clamping rod is rotatably connected to the surface of the support rod. The limiting block is fixed to the surface of the rotating rod. The reset spring is fixed to one side of the clamping rod.

[0017] The beneficial effect of the present utility model is as follows: By providing a positioning component, when it is necessary to polish stainless steel pipes of different thicknesses, through the mutual cooperation of the positioning member and the polishing member, the positions of stainless steel pipes of different thicknesses can be restricted, and through the fixing member, stainless steel pipes of different thicknesses will not shift or shake during polishing, thereby ensuring that the surface of the stainless steel pipe can be evenly polished, which is convenient for users. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0019] Figure 1 It is a structural diagram of the automatic polishing device for stainless steel pipes.

[0020] Figure 2 It is a sectional structural diagram of the protective shell of the automatic polishing device for stainless steel pipes from another perspective.

[0021] Figure 3 For the automatic polishing device of stainless steel pipesFigure 2 The enlarged structure diagram at position A in

[0022] Figure 4 It is the connection structure diagram of the fixing plate and the protective shell of the automatic polishing device for stainless steel pipes.

[0023] Figure 5 For the automatic polishing device of stainless steel pipes Figure 4 The enlarged structure diagram at position B in

[0024] Figure 6 It is the connection structure diagram of the rotating motor and the clamping disc of the automatic polishing device for stainless steel pipes.

[0025] Figure 7 For the automatic polishing device of stainless steel pipes Figure 6 The enlarged structure diagram at position C in

[0026] Figure 8 It is the connection structure diagram of the polishing block and the pushing spring of the automatic polishing device for stainless steel pipes.

[0027] Figure 9 It is the connection structure diagram of the clamping rod and the limiting block of the automatic polishing device for stainless steel pipes.

[0028] Figure 10 It is the connection structure diagram of the push rod and the rotating rod of the automatic polishing device for stainless steel pipes. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present utility model in conjunction with the accompanying drawings of the specification.

[0030] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0031] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0032] Embodiment 1

[0033] Refer to Figures 1 to 10, which is the first embodiment of the present utility model. This embodiment provides an automatic polishing device for stainless steel pipes. The automatic polishing device for stainless steel pipes includes a main body assembly 100 and a positioning assembly 200. Through the cooperation of the two, when polishing stainless steel pipes of different thicknesses is required, the positioning member and the polishing member can cooperate with each other to limit the positions of stainless steel pipes of different thicknesses, and the fixing member is used to ensure that stainless steel pipes of different thicknesses will not shift or shake during polishing, so as to ensure that the surface of the stainless steel pipe can be evenly polished, which is convenient for users to use.

[0034] Specifically, the main body assembly 100 includes a support column 101, a protective shell 102, a controller 103, a feed inlet 104 and a discharge outlet 105. The protective shell 102 is fixed on the top of the support column 101, the controller 103 is fixed on one side of the protective shell 102, the feed inlet 104 is arranged on one side of the protective shell 102, and the discharge outlet 105 is located on one side of the protective shell 102.

[0035] The support column 101 is used to fix the position of the protective shell 102 to ensure that the protective shell 102 will not shake. The protective shell 102 is used to ensure that when polishing the stainless steel pipe, the stainless steel pipe will not be affected by external objects, resulting in uneven polishing of the stainless steel pipe surface. The controller 103 is used to control the rotation speed and polishing time of the polisher. The protective shell 102 and the controller 103 are prior arts and will not be elaborated here. The feed inlet 104 is used for feeding the stainless steel pipe and ensuring that the position of the stainless steel pipe can be accurately limited. The discharge outlet 105 is used to discharge the polished stainless steel pipe from the protective shell 102 to ensure that the stainless steel pipe will not be blocked in the protective shell 102.

[0036] The positioning assembly 200 is arranged inside the protective shell 102 and includes a positioning member 201, a polishing member 202 and a fixing member 203. The positioning member 201 is arranged inside the protective shell 102, the polishing member 202 is located inside the protective shell 102, and the fixing member 203 is arranged on one side of the protective shell 102.

[0037] The positioning member 201 can be fixed to the protective shell 102 to ensure that the position of the positioning member 201 will not loosen. The positioning member 201 is used to limit stainless steel pipes of different thicknesses, so as to facilitate polishing of the stainless steel pipe and ensure that the surface of the stainless steel pipe can be evenly polished. Moreover, the positioning member 201 and the fixing member 203 cooperate with each other. After the positioning member 201 limits stainless steel pipes of different thicknesses, the fixing member can be used to ensure that stainless steel pipes of different thicknesses will not shift or shake during polishing, ensuring that the surface of the stainless steel pipe can be evenly polished, which is convenient for users to use.

[0038] Specifically, the positioning member 201 includes a fixing plate 201a and a limiting rod 201b. The fixing plate 201a is fixed inside the protective shell 102, and the limiting rod 201b slides inside the fixing plate 201a.

[0039] The fixing plate 201a is used to support the position of the limiting rod 201b, so as to ensure that the limiting rod 201b will not shift when it moves. The limiting rod 201b is used to drive the positioning member 201 to move, so that the positioning member 201 can limit stainless steel pipes of different thicknesses.

[0040] Embodiment 2

[0041] Refer to Figure 2 、 Figure 3 and Figures 5 to 10 This is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0042] Specifically, the positioning member 201 further includes a support block 201c, a rotating wheel 201d, and a positioning block 201e. The support block 201c is fixed to one end of the limiting rod 201b. The rotating wheel 201d is rotatably connected to the inside of the support block 201c. The positioning block 201e is fixed to the inside of the protective shell 102.

[0043] The support block 201c is used to ensure the position of the rotating wheel 201d, so as to ensure that the rotating wheel 201d will not shift when it contacts the stainless steel pipe, so that the rotating wheel 201d can limit the position of the stainless steel pipe. The rotating wheel 201d is used to accurately convey the stainless steel pipe into the polishing member 202, so as to facilitate the polishing member 202 to polish the stainless steel pipe. The positioning block 201e is used to fix the position of the positioning member 201, so as to ensure that the positioning member 201 can limit stainless steel pipes of different thicknesses.

[0044] Specifically, the positioning member 201 further includes a rotating rod 201f, a rotating gear 201g, and a rack 201h. The rotating rod 201f is rotatably connected to the inside of the positioning block 201e. The rotating gear 201g is fixed to the surface of the rotating rod 201f. The rack 201h is fixed to one side of the support block 201c. The rack 201h meshes with the rotating gear 201g.

[0045] The rotating rod 201f is used to fix the position of the rotating gear 201g and can drive the rotating gear 201g to rotate. The rotating gear 201g can mesh with the rack 201h, so as to ensure that when the rotating gear 201g rotates, the support block 201c can be driven to move through the rack 201h, so that the position of the rotating wheel 201d can change, so that the rotating wheel 201d can adapt to stainless steel pipes of different thicknesses.

[0046] Specifically, the polishing member 202 includes a support plate 202a, a rotating disk 202b, and a toothed disk 202c. The support plate 202a is fixed to the inside of the protective shell 102. The rotating disk 202b is rotatably connected to the inside of the support plate 202a. The toothed disk 202c is rotatably connected to the surface of the rotating disk 202b.

[0047] The support plate 202a is used to limit the position of the rotating disk 202b, so as to ensure that the rotating disk 202b will not shift when it rotates. The rotating disk 202b can drive the gear disk 202c to rotate, so as to ensure that the polishing part 202 can polish the stainless steel pipe. The gear disk 202c is used to drive the polishing part 202 to rotate simultaneously when the positioning part 202 rotates, so as to ensure that the polishing part 202 can also change simultaneously, so that the polishing part 202 can adapt to stainless steel pipes of different thicknesses, so as to ensure that the surface of the stainless steel pipe can be evenly polished when the polishing part 202 polishes the stainless steel pipe.

[0048] Specifically, the polishing part 202 further includes a rotating motor 202d, a clamping disk 202e and a belt 202f. The rotating motor 202d is fixed in the protective shell 102, the clamping disk 202e is fixed to the output end of the rotating motor 202d, and the belt 202f is sleeved on the surfaces of the clamping disk 202e and the rotating disk 202b.

[0049] The rotating motor 202d is used to drive the clamping disk 202e to rotate, so as to ensure that the clamping disk 202e can drive the polishing part 202 to polish the surface of the stainless steel pipe through the belt 202f. The clamping disk 202e is used to drive the belt 202f to rotate, so that the belt 202f can drive the rotating disk 202b to rotate through the clamping disk 202e, so that the rotating disk 202b can drive the polishing part 202 to polish the surface of the stainless steel pipe.

[0050] Specifically, the polishing part 202 further includes a fixed block 202g, a sliding rod 202h, a compression spring 202i, a positioning spring 202j and a limiting block 202k. The fixed block 202g is fixed to one side of the rotating disk 202b. The sliding rod 202h slides in the fixed block 202g. One end of the compression spring 202i is fixed to one side of the sliding rod 202h, and the other end of the compression spring 202i is fixed to one side of the fixed block 202g. The positioning spring 202j is fixed in the sliding rod 202h. The limiting block 202k slides in the sliding rod 202h, and the limiting block 202k is fixed to one side of the positioning spring 202j.

[0051] The fixed block 202g is used to limit the sliding distance of the sliding rod 202h, so as to ensure that the sliding rod 202h will not deviate when it slides. The sliding rod 202h is used to drive the polishing part 202 to move, so that the polishing part 202 can adapt to stainless steel pipes of different thicknesses. The compression spring 202i is used to drive the sliding rod 202h to move, so that when the sliding rod 202h is not squeezed, it can be reset by the compression spring 202i. The positioning spring 202j is used to push the limiting block 202k to move, so that the sliding rod 202h can be clamped and fixed with the polishing part 202 through the limiting block 202k, so as to ensure that when the rotating disk 202b rotates, it can drive the fixed block 202g to rotate as well.

[0052] Embodiment 3

[0053] Refer to Figures 6 to 10 , which is the third embodiment of the present utility model, and this embodiment is based on the first two embodiments.

[0054] Specifically, the polishing part 202 further includes an extrusion block 202l, a clamping gear 202m, a pushing spring 202n and a polishing block 202o. The extrusion block 202l is fixed on one side of the tooth disk 202c, and the extrusion block 202l is clamped with the sliding rod 202h. The clamping gear 202m is rotatably connected to the surface of the rotating rod 201f, and the clamping gear 202m meshes with the tooth disk 202c. One end of the pushing spring 202n is fixed on one side of the sliding rod 202h, and the polishing block 202o is fixed on the other end of the pushing spring 202n.

[0055] When the fixed block 202g rotates, it can be clamped with the extrusion block 202l through the limiting block 202k, so that the fixed block 202g can drive the tooth disk 202c to rotate at the same time, and the tooth disk 202c can mesh with the clamping gear 202m, so that the clamping gear 202m can drive the tooth disk 202c to rotate, so that the extrusion block 202l can squeeze the sliding rod 202h, thereby adjusting the moving distance of the sliding rod 202h, so that the polishing part 202 can cooperate with the positioning part 201 to adapt to stainless steel pipes of different thicknesses. The pushing spring 202n is used to limit the position of the polishing block 202o, so as to ensure that when the rotating wheel 201d rotates, the polishing block 202o can always be in contact with the surface of the stainless steel pipe through the pushing spring 202n, so as to polish the surface of the stainless steel pipe.

[0056] Specifically, the fixing member 203 includes a placement block 203a, a rotating block 203b, a push rod 203c, a push block 203d, and a compression spring 203e. The placement block 203a is fixed to one side of the protective shell 102. The rotating block 203b is rotatably connected within the placement block 203a. The push rod 203c moves on the surface of the rotating rod 201f. The push block 203d is fixed to the surface of the push rod 203c. One end of the compression spring 203e is fixed to one side of the rotating block 203b, and the other end of the compression spring 203e is fixed to one side of the push block 203d.

[0057] The placement block 203a is used to fix the position of the rotating block 203b, thereby ensuring that the rotating block 203b does not shift when it rotates. The rotating block 203b is used to ensure that the push rod 203c can rotate. One end of the push rod 203c is fixed to one side of the clamping gear 202m, so that the push rod 203c can drive the clamping gear 202m to move through the rotating rod 201f. Thus, when the tooth disc 202c rotates, it is prevented from meshing with the clamping gear 202m. The push block 203d is used to drive the fixing member 203 to rotate, so that the fixing member 203 can adjust the positions of the positioning member 201 and the polishing member 202, so that the positioning member 201 and the polishing member 202 can adapt to stainless steel pipes of different thicknesses. The compression spring 203e is used to limit the position of the push block 203d, so that the push block 203d can control the meshing state of the clamping gear 202m and the tooth disc 202c, thereby ensuring that the tooth disc 202c does not drive the clamping gear 202m to rotate when it rotates.

[0058] Specifically, the fixing member 203 further includes a support rod 203f, a clamping rod 203g, a limiting block 203h, and a return spring 203i. The support rod 203f is fixed to one side of the protective shell 102. The clamping rod 203g is rotatably connected to the surface of the support rod 203f. The limiting block 203h is fixed to the surface of the rotating rod 201f. The return spring 203i is fixed to one side of the clamping rod 203g.

[0059] The support rod 203f is used to fix the position of the clamping rod 203g, thereby ensuring that the clamping rod 203g does not shift when it rotates. The clamping rod 203g can cooperate with the limiting block 203h to limit the position of the rotating rod 201f, thereby ensuring that the rotating rod 201f does not rotate independently. The return spring 203i is used to limit the position of the clamping rod 203g, so that the clamping rod 203g can fix the position of the limiting block 203h.

[0060] In use, when it is necessary to polish stainless steel pipes of different thicknesses, first place the stainless steel pipe into the feed port 104 so that the stainless steel pipe can be in contact with the rotating wheel 201d. Then, push the push rod 203c on the surface of the rotating rod 201f so that the push rod 203c can push the clamping gear 202m to move, making the clamping gear 202m engage with the tooth disc 202c. Then, squeeze the clamping rod 203g to separate the clamping rod 203g from the limiting block 203h. After the clamping rod 203g is separated from the limiting block 203h, rotate the push block 203d, so that the push block 203d drives the rotating rod 201f to rotate through the push rod 203c, so that the rotating rod 201f can drive the clamping gear 202m to rotate, thereby making the clamping gear 202m drive the tooth disc 202c to rotate. In this way, the tooth disc 202c can adjust the position of the sliding rod 202h through the pressing block 202l, and the limiting block 202k can be clamped into it, so as to ensure that when the tooth disc 202c rotates, the tooth disc 202c and the rotating disc 202b can be clamped and fixed to each other through the limiting block 202k and will not loosen. When the rotating rod 201f drives the clamping gear 202m to rotate, it can simultaneously drive the rotating gear 201g to rotate, so that the rotating gear 201g can drive the rack 201h to move, so that the support block 201c can move, so as to adapt to stainless steel pipes of different thicknesses, so as to ensure that when the polishing block 202o polishes the stainless steel pipe, the surface of the stainless steel pipe can be evenly polished. Finally, the polished stainless steel pipe is discharged from the discharge port 105 for the convenience of users.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automatic polishing device for stainless steel pipes, characterized in that: include, A main body component (100), comprising a support column (101), a protective shell (102), a controller (103), a feed port (104), and a discharge port (105), wherein the protective shell (102) is fixed to the top of the support column (101), the controller (103) is fixed to one side of the protective shell (102), the feed port (104) is arranged on one side of the protective shell (102), and the discharge port (105) is located on one side of the protective shell (102); and, A positioning component (200) is arranged in the protective shell (102), comprising a positioning member (201), a polishing member (202) and a fixing member (203), wherein the positioning member (201) is arranged in the protective shell (102), the polishing member (202) is located in the protective shell (102), and the fixing member (203) is arranged on one side of the protective shell (102).

2. The automatic polishing device for stainless steel pipe according to claim 1, characterized in that: The positioning member (201) comprises a fixing plate (201a) and a limiting rod (201b); the fixing plate (201a) is fixed in the protective shell (102); and the limiting rod (201b) slides in the fixing plate (201a).

3. The automatic polishing device for stainless steel pipe according to claim 2, characterized in that: The positioning member (201) further comprises a support block (201c), a rotating wheel (201d) and a positioning block (201e); the support block (201c) is fixed to one end of the limiting rod (201b); the rotating wheel (201d) is rotatably connected inside the support block (201c); and the positioning block (201e) is fixed inside the protective shell (102).

4. The automatic polishing device for stainless steel pipe according to claim 3, characterized in that: The positioning member (201) further comprises a rotating rod (201f), a rotating gear (201g) and a rack (201h); the rotating rod (201f) is rotatably connected to the positioning block (201e); the rotating gear (201g) is fixed to the surface of the rotating rod (201f); the rack (201h) is fixed to one side of the supporting block (201c); and the rack (201h) and the rotating gear (201g) are meshed with each other.

5. The automatic polishing device for stainless steel pipe according to claim 4, characterized in that: The polishing piece (202) comprises a support plate (202a), a rotating disk (202b) and a toothed disk (202c); the support plate (202a) is fixed in the protective shell (102); the rotating disk (202b) is rotatably connected in the support plate (202a); and the toothed disk (202c) is rotatably connected to the surface of the rotating disk (202b).

6. The automatic polishing device for stainless steel pipe according to claim 5, characterized in that: The polishing piece (202) further comprises a rotating motor (202d), a clamping disc (202e) and a belt (202f); the rotating motor (202d) is fixed in the protective shell (102); the clamping disc (202e) is fixed to the output end of the rotating motor (202d); and the belt (202f) is sleeved on the surfaces of the clamping disc (202e) and the rotating disc (202b).

7. The automatic polishing device for stainless steel pipe according to claim 6, characterized in that: The polishing piece (202) further comprises a fixed block (202g), a sliding rod (202h), a compression spring (202i), a positioning spring (202j) and a limit block (202k), wherein the fixed block (202g) is fixed to one side of the rotating disk (202b), the sliding rod (202h) slides in the fixed block (202g), one end of the compression spring (202i) is fixed to one side of the sliding rod (202h), the other end of the compression spring (202i) is fixed to one side of the fixed block (202g), the positioning spring (202j) is fixed in the sliding rod (202h), the limit block (202k) slides in the sliding rod (202h), and the limit block (202k) is fixed to one side of the positioning spring (202j).

8. The automatic polishing device for stainless steel pipe according to claim 7, characterized in that: The polishing member (202) further comprises an extrusion block (202l), a clamping gear (202m), a pushing spring (202n) and a polishing block (202o); the extrusion block (202l) is fixed to one side of the toothed disc (202c); the extrusion block (202l) and the sliding rod (202h) are clamped to each other; the clamping gear (202m) is rotatably connected to the surface of the rotating rod (201f); the clamping gear (202m) and the toothed disc (202c) are meshed with each other; one end of the pushing spring (202n) is fixed to one side of the sliding rod (202h); and the polishing block (202o) is fixed to the other end of the pushing spring (202n).

9. The automatic polishing device for stainless steel pipe according to claim 8, characterized in that: The fixing member (203) comprises a placement block (203a), a rotating block (203b), a pushing rod (203c), a pushing block (203d) and a pressing spring (203e); the placement block (203a) is fixed to one side of the protective shell (102); the rotating block (203b) is rotatably connected to the placement block (203a); the pushing rod (203c) moves on the surface of the rotating rod (201f); the pushing block (203d) is fixed to the surface of the pushing rod (203c); one end of the pressing spring (203e) is fixed to one side of the rotating block (203b); and the other end of the pressing spring (203e) is fixed to one side of the pushing block (203d).

10. The automatic polishing device for stainless steel pipe according to claim 8 or 9, characterized in that: The fixing member (203) further comprises a support rod (203f), a clamping rod (203g), a limiting block (203h) and a return spring (203i); the support rod (203f) is fixed to one side of the protective shell (102); the clamping rod (203g) is rotatably connected to the surface of the support rod (203f); the limiting block (203h) is fixed to the surface of the rotating rod (201f); and the return spring (203i) is fixed to one side of the clamping rod (203g).

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