A surface polishing device for crystallizer copper tube production

Abstract

The present invention relates to the field of copper tube polishing and discloses a surface polishing device for the production of crystallizer copper tubes, comprising a copper tube support, a movable clamping frame being provided on the copper tube support, the movable clamping frame being able to drive the crystallizer copper tube to move on the copper tube support, a polishing drive base being provided on one side of the copper tube support, an adjustment mechanism being provided on the polishing drive base, and a drive mechanism being provided on the adjustment mechanism. The beneficial effect of the present invention compared with the prior art is that the present invention can realize selective polishing of square or round crystallizer copper tubes through the cooperation of the adjustment mechanism and the drive mechanism, the design does not require replacement of core components, and can adapt to the polishing requirements of the inner walls of copper tubes of different shapes through structural switching, thereby significantly improving the versatility and processing flexibility of the equipment.

Description

Technical Field

[0001] The invention relates to the field of copper tube polishing, in particular to surface polishing equipment for producing crystallizer copper tubes. Background Art

[0002] As a core component of metallurgical continuous casting equipment, the inner surface quality of the mold copper tube directly affects the molding accuracy and surface quality of the ingot. During production, the mold copper tube must be designed with a circular or square cross-section according to the requirements of different continuous casting processes. Furthermore, the inner diameters of different copper tube specifications vary, placing high demands on the adaptability of the inner wall grinding equipment.

[0003] In the prior art, the polishing equipment for the inner wall of the copper tube of the crystallizer generally has the following problems:

[0004] Insufficient shape adaptability: Traditional equipment is usually only designed for a single shape (such as round or square copper tubes). If you need to switch to grinding copper tubes with different cross-sectional shapes, you need to replace the core grinding components or even the entire equipment. The debugging process is cumbersome and time-consuming, seriously affecting production efficiency.

[0005] Size adjustment limitations: For copper tubes with different inner diameters, existing equipment mostly relies on replacing fixed-specification grinding components or manually adjusting the spacing between grinding units. The adjustment accuracy is low and the operation is complicated, making it difficult to meet the mass production needs of copper tubes of multiple specifications.

[0006] In response to the above problems, there is an urgent need for a surface grinding equipment that can efficiently adapt to square and round crystallizer copper tubes and has the ability to adaptively adjust the size, so as to improve processing flexibility, reduce debugging costs, and meet the high-quality grinding needs of copper tubes of various specifications in modern metallurgical production. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a technical solution: a surface polishing device for the production of crystallizer copper tubes.

[0008] A surface grinding device for producing a crystallizer copper tube comprises a copper tube support, a movable clamping frame is provided on the copper tube support, the crystallizer copper tube is located in the movable clamping frame, and the movable clamping frame can drive the crystallizer copper tube to move on the copper tube support. A grinding drive base is provided on one side of the copper tube support, an adjustment mechanism is provided on the grinding drive base, and a driving mechanism is provided on the adjustment mechanism.

[0009] An adapter support is provided on the grinding drive base, and an extension rod is connected to the output end of the driving mechanism through the adapter support. The end of the extension rod is provided with a grinding mechanism located in the copper tube of the crystallizer;

[0010] The driving mechanism drives the side end of the grinding mechanism to slide along the inner wall of the copper tube of the crystallizer through the extension rod. The starting adjustment mechanism can simultaneously drive the driving mechanism and the adapter support to adjust the position. When the driving mechanism moves downward, the adapter support moves toward the position of the copper tube support at the same time. At this time, the grinding mechanism can grind the circular copper tube of the crystallizer;

[0011] When the driving mechanism moves upward, the adapter support moves away from the copper tube support position at the same time. At this time, the grinding mechanism can grind the square crystallizer copper tube.

[0012] As an improvement, the copper tube support includes a fixed base and a screw rod 1, and the movable clamping frame includes a bottom support, which is driven by the screw rod 1 through rotation. The bottom support is provided with a movable frame that can be extended and retracted relative to the bottom support, and the movable frame is provided with side clamps, and the crystallizer copper tube is clamped by the side clamps.

[0013] As an improvement, the grinding drive base includes a base body and corresponding limit frames and side plates. The adjustment mechanism includes a screw rod 2 arranged between the limit frame and the side plates. The base body is provided with a screw rod 3 corresponding to the position of the screw rod 2. The screw rod 3 and the screw rod 2 are driven by a bevel gear set.

[0014] The driving mechanism is driven by the screw rod three, and the adapter support is driven by the screw rod two.

[0015] As an improvement, the driving mechanism includes a driving motor connected to the screw rod with three threads, and the output end of the driving motor is provided with a hinge joint 1, a transmission rod and a hinge joint 2 which are hinged in pairs in sequence, and the hinge joint 1 is hinged to the output end of the driving motor;

[0016] The second hinge joint is fixedly connected to one end of the rotating rod, and the other end of the rotating rod is fixedly connected to the grinding mechanism through an extension rod. The external rotating sleeve is provided with a Lelo triangle block located in an adapter support.

[0017] As an improvement, locking pieces are provided at the connection between the first hinged head and the transmission rod, and at the connection between the second hinged head and the transmission rod.

[0018] As an improvement, the adaptor support includes a sliding frame plugged into the limit frame, and the sliding frame is threadedly connected to the screw rod;

[0019] A square groove is provided in the sliding frame, and a circular groove is provided on one side of the square groove. The sliding frame passes through the limit frame and the end is provided with a limit frame located on one side of the limit frame. When the Lelo triangle block is located in the square groove, the grinding mechanism can grind the square crystallizer copper tube. When the Lelo triangle block is located in the circular groove, the grinding mechanism can grind the circular crystallizer copper tube.

[0020] As an improvement, the grinding mechanism includes a fixed end fixedly connected to the extension rod, a screw is rotatably provided on the fixed end, and a connecting head is rotatably provided at the end of the screw;

[0021] The external thread of the screw rod is covered with a screw block, and a limiting rod passing through the screw block is connected between the fixed end and the connector;

[0022] A plurality of hinged rods are hinged on the connecting head and the screw block, and fixed tooth blocks are fixed on the ends of the hinged rods. The two fixed tooth blocks are engaged with each other and are covered with a cover shell. The cover shell is provided with a polishing strip that is in sliding contact with the inner wall of the crystallizer copper tube.

[0023] The beneficial effects of the present invention compared with the prior art are:

[0024] 1. Shape adaptability to grinding, improving equipment versatility

[0025] The present invention can achieve selective grinding of square or round crystallizer copper tubes through the cooperation of the adjustment mechanism and the drive mechanism. Screw 2, Screw 3 and the bevel gear transmission structure in the adjustment mechanism can synchronously drive the drive mechanism and the adapter support to move, so that the Lero triangle block switches its position in the square groove or the circular groove: when it is in the square groove, the rotating rod revolves around the driving motor shaft, driving the grinding mechanism to grind the inner wall of the square copper tube; when it is in the circular groove, the Lero triangle block fixes the rotating shaft of the rotating rod and drives the grinding mechanism to perform circular motion to grind the circular inner wall. This design does not require the replacement of core components. It can adapt to the grinding needs of the inner walls of copper tubes of different shapes through structural switching, which significantly improves the versatility and processing flexibility of the equipment.

[0026] 2. Adaptive size adjustment to enhance the practicality of the equipment

[0027] The grinding mechanism utilizes a worm-gear drive and an articulated rod structure, allowing for flexible adaptation to mold copper tubes of varying sizes. The worm drives the worm wheel, which in turn rotates the screw, causing the screw block to move along the limit rod. This changes the angle of the articulated rod, thereby adjusting the spacing between the fixed tooth block and the grinding strips on the housing. This design eliminates the need to replace grinding components; simple mechanical adjustments are sufficient to meet the requirements for grinding the inner walls of square or round copper tubes of varying inner diameters. This design is particularly suitable for mass production of copper tubes of various specifications, reducing equipment commissioning costs and improving production adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an overall schematic diagram of a surface grinding device for producing a crystallizer copper tube according to the present invention. Figure 1 .

[0029] Figure 2 This is an overall schematic diagram of a surface grinding device for producing a crystallizer copper tube according to the present invention. Figure 2 .

[0030] Figure 3 This is an overall schematic diagram of a surface grinding device for producing a crystallizer copper tube according to the present invention. Figure 3 .

[0031] Figure 4This is a schematic diagram of the overall disassembly of a surface grinding device for producing a crystallizer copper tube according to the present invention. Figure 1 .

[0032] Figure 5 This is a schematic diagram of the overall disassembly of a surface grinding device for producing a crystallizer copper tube according to the present invention. Figure 2 .

[0033] Figure 6 The present invention is a schematic diagram of an overall disassembled cross-sectional view of a surface grinding device for producing a crystallizer copper tube.

[0034] Figure 7 This invention is a surface grinding device for producing a crystallizer copper tube. Figure 6 Schematic diagram at point A in the middle.

[0035] Figure 8 The present invention is a surface grinding device for producing a crystallizer copper tube Figure 6 Schematic diagram at point B in the middle.

[0036] Figure 9 This is a schematic diagram of a mobile clamping frame for a surface grinding device for producing a crystallizer copper tube. Figure 1 .

[0037] Figure 10 This is a schematic diagram of a mobile clamping frame for a surface grinding device for producing a crystallizer copper tube. Figure 2 .

[0038] As shown in the figure: 1. Copper tube support; 101. Fixed base; 102. Screw rod 1; 2. Mobile clamping frame; 201. Bottom support; 202. Bidirectional screw rod; 203. Bevel gear 1; 204. Mobile frame; 205. Side clamping plate; 206. Anti-slip pad; 3. Grinding drive base; 301. Base body; 302. Limit frame; 4. Extension rod; 21. Grinding mechanism; 211. Fixed end; 212. Connector; 213. Screw rod; 214. Screw block; 215. Articulated rod; 216. Fixed gear block; 217. Cover; 218. Grinding strip; 219. Limit rod; 220. Worm gear; 221. Worm; 31. Driving mechanism; 311. Driving motor; 312. Hinge head one; 313. Transmission rod; 314. Hinge head two; 315. Rotating rod; 316. Leroy triangle block; 317. Locking piece; 41. Adapter support; 411. Sliding frame; 412. Square slot; 413. Circular slot; 414. Limiting frame; 51. Adjusting mechanism; 511. Screw rod two; 512. Bevel gear two; 513. Screw rod three; 514. Bevel gear three. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings.

[0040] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown:

[0041] A surface polishing device for producing a crystallizer copper tube includes a copper tube support 1, a movable clamping frame 2 is provided on the copper tube support 1, and the crystallizer copper tube is located within the movable clamping frame 2. The movable clamping frame 2 can drive the crystallizer copper tube to move on the copper tube support 1. A polishing drive base 3 is provided on one side of the copper tube support 1, and an adjustment mechanism 51 is provided on the polishing drive base 3. A drive mechanism 31 is provided on the adjustment mechanism 51.

[0042] The polishing drive base 3 is provided with an adapter support 41, and the output end of the drive mechanism 31 is connected to the extension rod 4 through the adapter support 41. The end of the extension rod 4 is provided with a polishing mechanism 21 located in the copper tube of the crystallizer;

[0043] The driving mechanism 31 drives the side end of the grinding mechanism 21 to slide along the inner wall of the crystallizer copper tube through the extension rod 4. The adjusting mechanism 51 can simultaneously drive the driving mechanism 31 and the adapter support 41 to move up and down and relative to the grinding drive base 3, so that the grinding mechanism 21 can selectively grind square or round crystallizer copper tubes.

[0044] Working principle of the present invention: The copper tube support 1 and the movable clamping frame 2 are mainly used to clamp the crystallizer copper tube and move it during the grinding process. The adjustment mechanism 51 on the grinding drive base 3 can adjust the position of the adapter support 41 and the driving mechanism 31 according to the needs of the crystallizer copper tube grinding, so that the driving mechanism 31 drives the rotating grinding mechanism 21 to selectively grind square or round crystallizer copper tubes.

[0045] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 9 , Attachment Figure 10 As shown:

[0046] The copper tube support 1 includes a fixed base 101, a screw rod 102 is provided in the fixed base 101, and the end of the screw rod 102 is driven to rotate by a driving device;

[0047] The mobile clamping frame 2 includes a bottom bracket 201 sliding on the fixed base 101, and the bottom bracket 201 is threadedly connected to the screw rod 102;

[0048] The bottom of the base 201 is provided with an empty slot, in which a bidirectional screw rod 202 is provided. A bevel gear 1 203 is fixedly connected to the center of the bidirectional screw rod 202. The bevel gear 1 203 is driven to rotate by a driving device fixed to the empty slot.

[0049] A movable frame 204 is correspondingly threaded on the bidirectional screw rod 202. The movable frame 204 passes through the empty slot and is provided with a side clamping plate 205 at the end. The side clamping plate 205 is provided with an anti-slip pad 206. The crystallizer copper tube is placed on the base 201 and is clamped by the side clamping plate 205 through the anti-slip pad 206.

[0050] When grinding the inner wall of the crystallizer copper tube, in order to enable the grinding mechanism 21 to completely grind the inner wall of the crystallizer copper tube, the crystallizer copper tube is driven to move relative to the grinding mechanism 21 through the copper tube support 1 and the movable clamping frame 2. During the process, the grinding mechanism 21 works to grind the inner wall of the crystallizer copper tube.

[0051] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 As shown:

[0052] The polishing drive base 3 includes a base body 301, on which a limit frame 302 and a side plate are correspondingly provided. The limit frame 302 is located near the copper tube support 1, and the adjustment mechanism 51 is located on the base body 301 and is mounted between the limit frame 302 and the side plate.

[0053] The adjustment mechanism 51 includes a second screw rod 511 disposed between the limiting frame 302 and the side plate, and a second bevel gear 512 is fixedly connected to the second screw rod 511;

[0054] The base body 301 is provided with a screw rod 3 513 corresponding to the position of the screw rod 2 511 , and the screw rod 3 513 is fixed with a bevel gear 3 514 meshing with the bevel gear 2 512 ;

[0055] The end of the second screw rod 511 passes through the side plate and is driven to rotate by the driving device. When the driving device is started, the driving mechanism 31 and the adapter support 41 are driven to move simultaneously through the second screw rod 511 and the third screw rod 513, so that the grinding mechanism 21 adapts to the square or round crystallizer copper tube.

[0056] The driving mechanism 31 includes a driving motor 311 threadedly connected to the screw rod 3 513, and an articulated joint 312 is provided at the output end of the driving motor 311;

[0057] The hinged joint 1 312 is hinged to one end of a transmission rod 313 , the other end of the transmission rod 313 is hinged to a hinged joint 2 314 , and the hinged joint 2 314 is hinged to one end of a rotating rod 315 ;

[0058] The other end of the rotating rod 315 is fixedly connected to the grinding mechanism 21 through the extension rod 4, and the outer end of the rotating rod 315 is rotatably sleeved with a Lelo triangle block 316;

[0059] A locking member 317 is provided at the connection between the first hinge head 312 and the transmission rod 313 , and at the connection between the second hinge head 314 and the transmission rod 313 .

[0060] The adapter support 41 includes a sliding frame 411 that is slidably plugged into the limiting frame 302 , and one end of the sliding frame 411 is threadedly connected to the second screw rod 511 ;

[0061] A square groove 412 is provided in the sliding frame 411, and a circular groove 413 is provided on one side of the square groove 412. The end of the sliding frame 411 passes through the limit frame 302 and is provided with a limit frame 414 on the end. The limit frame 414 is located on the other side of the square groove 412. When the Lelo triangle block 316 is located in the square groove 412, the grinding mechanism 21 can grind the square crystallizer copper tube. When the Lelo triangle block 316 is located in the circular groove 413, the grinding mechanism 21 can grind the circular crystallizer copper tube.

[0062] In the prior art, the principle of the movement of the Reuleaux triangle in a square hole is mainly based on the characteristics and geometric structure of its equal-width curve. No matter how the Reuleaux triangle rotates in the square hole, its edges can always contact the four sides of the square and will not get stuck due to changes in direction. For example: when a vertex of the Reuleaux triangle contacts the midpoint of a side of the square, the arc on the opposite side will fit exactly with the opposite side of the square; when the vertex is rotated close to the corner of the square, the arcs on both sides will contact the adjacent two sides respectively. When a vertex moves from left to right along the upper side of the square, the arc on the opposite side will synchronously squeeze the lower side, while the arcs near the other two vertices will contact the left and right sides;

[0063] When the drive device of the adjustment mechanism 51 is started, the second screw 511 and the third screw 513 rotate simultaneously through the second bevel gear 512 and the third bevel gear 514, thereby driving the drive mechanism 31 to adapt to the support 41 and move simultaneously. The forward and reverse rotation of the drive device of the adjustment mechanism 51 needs to be determined according to whether the inner wall of the crystallizer copper tube to be polished is round or square:

[0064] When it is necessary to grind the inner wall of the circular crystallizer copper tube, the driving device of the adjusting mechanism 51 rotates forward: when the driving device of the adjusting mechanism 51 rotates forward, the adapter support 41 moves toward the copper tube support 1, the driving motor 311 moves downward, and the Lelo triangle block 316 enters the circular groove 413 from the square groove 412. Before this, the transmission rod 313 needs to be manually adjusted to have the same tilt direction as the moving direction of the driving motor 311. At this time, when the Lelo triangle block 316 enters the circular groove 413 from the square groove 412, the transmission rod 313 is turned from the tilted state to the horizontal state, that is, the transmission rod 313 and the circular groove 413 axis overlap. Since there is a rotational relationship between the Lelo triangle block 316 and the rotating rod 315, when the driving motor 311 is started, the Lelo triangle block 316 only has the function of fixing the rotating shaft of the rotating rod 315. At this time, the driving mechanism 31 drives the grinding mechanism 21 to perform circular motion to grind the inner wall of the circular crystallizer copper tube.

[0065] When it is necessary to grind the inner wall of the square crystallizer copper tube, the driving device of the adjusting mechanism 51 is reversed: when the driving device of the adjusting mechanism 51 is reversed, the adapter support 41 moves toward the side plate, the driving motor 311 moves upward, and the Lero triangle block 316 returns to the square groove 412. Before this, the transmission rod 313 needs to be manually adjusted to the same direction as the direction in which the tilting direction is to be moved as the driving motor 311. At this time, when the Lero triangle block 316 enters the square groove 412 from the circular groove 413, the transmission rod 313 is changed from a horizontal state to a tilted state. At this time, the rotating rod 315 revolves around the rotating shaft of the driving motor 311, and the driving motor 311 drives the grinding mechanism 21 to adapt to the grinding of the inner wall of the square crystallizer copper tube.

[0066] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 8 As shown:

[0067] The grinding mechanism 21 includes a fixed end 211 fixedly connected to the extension rod 4, the end of the fixed end 211 is rotatably connected to a screw 213, and the end of the screw 213 is rotatably connected to a connector 212;

[0068] The screw rod 213 is externally threaded with a screw block 214 , and a limiting rod 219 passing through the screw block 214 is connected between the fixed end 211 and the connecting head 212 ;

[0069] The connector 212 and the screw block 214 are both hingedly connected to a plurality of hinged rods 215, and fixed tooth blocks 216 are fixed to the ends of the hinged rods 215. The two fixed tooth blocks 216 are meshed with each other and are covered with a cover 217. The cover 217 is provided with a polishing strip 218 that is in sliding contact with the inner wall of the copper tube of the crystallizer;

[0070] A worm wheel 220 is fixedly provided at the end of the screw rod 213 , and a worm 221 meshing with the worm wheel 220 is provided on the fixed end 211 , so that the screw rod 213 is driven to rotate by the worm 221 to adjust the position of the screw block 214 .

[0071] The inner opening of the square copper tube of the crystallizer described in the present invention is in the shape of a standard square with all four corners of the square being in an arc state. The side length of the square is equal to the distance between the two grinding bars 218, and the radius of the arc is equal to the distance between the two grinding bars 218. At this time, when the driving mechanism 31 is started, the grinding bars 218 can slide on the inner wall of the crystallizer copper tube to grind the flat surface and the arc surface of the inner wall of the crystallizer copper tube;

[0072] In order to adapt to different sizes of crystallizer copper tubes, the screw 213 is driven to rotate by the worm 221 and the worm wheel 220 so that the distance between the screw block 214 and the connector 212 changes. At this time, the hinged rod 215 changes the degree of inclination so that the distance between the grinding strips 218 changes to adapt to different sizes of crystallizer copper tubes.

[0073] During the specific implementation of the present invention, the side clamp 205 clamps the copper tube, and the adjustment mechanism 51 on the grinding drive base 3 drives the driving mechanism 31 and the adapter support 41 to move up and down and horizontally respectively. The square groove 412 and the circular groove 413 of the adapter support 41 can switch the position of the Leroy triangle block 316 of the driving mechanism 31. When it is located in the square groove 412, the grinding mechanism 21 is adapted to grind the inner wall of the square copper tube. When it is located in the circular groove 413, it is adapted to grind the inner wall of the circular copper tube. The switching is achieved by the forward and reverse rotation of the driving device; the grinding mechanism 21 is connected by the extension rod 4, and the inclination degree of the hinged rod 215 is changed to adjust the spacing of the grinding bars 218 to adapt to copper tubes of different sizes. The driving motor 311 drives the grinding mechanism 21 to slide along the inner wall of the copper tube for grinding.

[0074] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A surface polishing device for producing a crystallizer copper tube, comprising a copper tube support (1), a movable clamping frame (2) being provided on the copper tube support (1), the crystallizer copper tube being located in the movable clamping frame (2), and the movable clamping frame (2) being capable of driving the crystallizer copper tube to move on the copper tube support (1), characterized in that: A grinding drive base (3) is provided on one side of the copper tube support (1), an adjustment mechanism (51) is provided on the grinding drive base (3), a driving mechanism (31) is provided on the adjustment mechanism (51), an adapter support (41) is provided on the grinding drive base (3), an output end of the driving mechanism (31) is connected to an extension rod (4) through the adapter support (41), and a grinding mechanism (21) located in the copper tube of the crystallizer is provided at the end of the extension rod (4); The driving mechanism (31) drives the side end of the grinding mechanism (21) to slide along the inner wall of the copper tube of the crystallizer through the extension rod (4). The starting adjustment mechanism (51) can simultaneously drive the driving mechanism (31) and the adapter support (41) to adjust the position. When the driving mechanism (31) moves downward, the adapter support (41) moves toward the position direction of the copper tube support (1). At this time, the grinding mechanism (21) can grind the circular copper tube of the crystallizer. When the driving mechanism (31) moves upward, the adapter support (41) moves away from the position direction of the copper tube support (1). At this time, the grinding mechanism (21) can grind the square copper tube of the crystallizer. The grinding drive base (3) includes a base body (301) and corresponding limit frames (302) and side plates. The adjustment mechanism (51) includes a second screw rod (511) provided between the limit frame (302) and the side plates. The base body (301) is provided with a third screw rod (513) corresponding to the position of the second screw rod (511). The third screw rod (513) and the second screw rod (511) are driven by a bevel gear set. The driving mechanism (31) is driven by the screw rod 3 (513), and the adapting support (41) is driven by the screw rod 2 (511). The driving mechanism (31) includes a driving motor (311) threadedly connected to the screw rod 3 (513). The output end of the driving motor (311) is provided with a hinge joint 1 (312), a transmission rod (313) and a hinge joint 2 (314) which are hinged in pairs in sequence. The hinge joint 1 (312) is hinged to the output end of the driving motor (311). The hinge joint 2 (314) is fixed to one end of the rotating rod (315), and the other end of the rotating rod (315) is fixed to the grinding mechanism (21) through the extension rod (4), and the external rotating sleeve is provided with a Lelo triangle block (316) located in the adapter support (41); The adapter support (41) includes a sliding frame (411) plugged into the limit frame (302), the sliding frame (411) is threadedly connected to the second screw rod (511), a square groove (412) is provided in the sliding frame (411), a circular groove (413) is provided on one side of the square groove (412), the sliding frame (411) passes through the limit frame (302) and an end portion is provided with a limit frame (414) located on one side of the limit frame (302), when the Lelo triangle block (316) is located in the square groove (412), the grinding mechanism (21) can grind the square crystallizer copper tube, and when the Lelo triangle block (316) is located in the circular groove (413), the grinding mechanism (21) can grind the circular crystallizer copper tube.

2. The surface polishing equipment for producing a crystallizer copper tube according to claim 1, characterized in that: The copper tube support (1) includes a fixed base (101) and a screw rod (102). The movable clamping frame (2) includes a bottom support (201). The bottom support (201) is driven by the screw rod (102) through rotation. The bottom support (201) is provided with a movable frame (204) that can be extended and retracted relative to the bottom support (201). The movable frame (204) is provided with a side clamping plate (205). The crystallizer copper tube is clamped by the side clamping plate (205).

3. The surface polishing equipment for producing a crystallizer copper tube according to claim 1, characterized in that: A locking member (317) is provided at the connection between the first hinge head (312) and the transmission rod (313), and at the connection between the second hinge head (314) and the transmission rod (313).

4. The surface polishing equipment for producing a crystallizer copper tube according to claim 1, characterized in that: The grinding mechanism (21) includes a fixed end (211) fixedly connected to the extension rod (4), a screw (213) rotatably provided on the fixed end (211), and a connector (212) rotatably provided at the end of the screw (213); The external thread of the screw rod (213) is sleeved with a screw block (214), and a limiting rod (219) passing through the screw block (214) is connected between the fixed end (211) and the connecting head (212); A plurality of hinged rods (215) are hinged on the connector (212) and the screw block (214), and a fixed tooth block (216) is fixed to the end of the hinged rod (215). The two fixed tooth blocks (216) are engaged with each other and are covered with a cover (217). The cover (217) is provided with a polishing strip (218) that is in sliding contact with the inner wall of the crystallizer copper tube.

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