A stainless steel part surface scratch repair device

Abstract

The present invention discloses a surface scratch repair device for stainless steel parts, which relates to the technical field of part surface treatment. The cooperative design of the ceramic stirring part and the ceramic filter screen in the present invention can efficiently clean the deposits on the ceramic filter screen by driving the stirring part to rotate continuously with the stirring drive motor. This design not only ensures the permeability of the filter screen, but also enables the polishing sand to pass through the filter screen smoothly, reducing the possibility of blockage and further improving the overall working efficiency of the device; the top extrusion rod and the bottom support rod firmly clamp the parts through the cylinder and the arc-shaped table connecting rod system. This system utilizes the cam principle to enable the top extrusion rod to move up and down alternately, and there is always a top extrusion rod in close contact with the surface of the parts, avoiding the loosening and displacement of the parts during the polishing process, and ensuring the uniformity and accuracy of the polishing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of part surface treatment, and particularly to a stainless steel part surface scratch repair device. Background Art

[0002] In existing grinding equipment, there is generally a problem that it is difficult to effectively separate grinding sand from impurities. Traditional grinding equipment mostly uses a single flow channel. After the grinding sand is used for a period of time, a large amount of metal powder impurities will be mixed in, resulting in a decrease in grinding efficiency and poor grinding quality. In addition, when clamping parts and components, existing equipment mostly relies on simple fixing devices, and the clamping is not stable, which easily causes the displacement of parts and components during the grinding process, affecting the grinding effect. The filter screen design in the prior art is also relatively simple and is easily blocked by impurities, requiring frequent cleaning and replacement, increasing the equipment maintenance cost and downtime, and reducing the production efficiency. Generally speaking, traditional grinding equipment has many deficiencies in terms of automation, efficiency, and quality. Summary of the Invention

[0003] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: A stainless steel part surface scratch repair device, including a grinding pool. A sunken concave hole is opened at the bottom of the inner wall of the grinding pool. A sunken collection pool is fixedly communicated at the sunken concave hole. A second conveying screw is rotatably installed at the bottom of the sunken collection pool. Symmetrically arranged first flow holes and second flow holes are also opened on the side wall of the grinding pool. A second flow channel is fixedly communicated with the first flow hole, and a first conveying screw is rotatably installed in the second flow channel. A first flow channel is fixedly communicated with the second flow hole, and multiple spoiler plates are fixed in the first flow channel; A sedimentation pool is also arranged beside the grinding pool. The sedimentation pool is communicated with the inside of the second flow channel through a first conveying pipeline. The inside of the sedimentation pool is communicated with the inside of the sunken collection pool through a third conveying pipeline. One end of the second conveying screw extends into the third conveying pipeline. An induction heating coil is embedded in the sedimentation pool.

[0004] Preferably, a top driving motor for driving the rotation of the first conveying screw is fixedly installed on the second flow channel, and a sunken driving motor for driving the rotation of the second conveying screw is fixedly installed on the sunken collection pool.

[0005] Preferably, a bottom impurity discharge groove is opened at the bottom of the sedimentation pool. A collection funnel is fixedly communicated with the bottom of the sedimentation pool. The collection funnel is communicated with the inside of the first flow channel through a second conveying pipeline. A third conveying screw is rotatably installed in the collection funnel. The bottom end of the third conveying screw extends into the second conveying pipeline, and is used for feeding the grinding sand inside the ceramic filter screen into the second conveying pipeline. A reflux driving motor for driving the rotation of the third conveying screw is fixedly installed on the second conveying pipeline.

[0006] Preferably, a ceramic filter screen is fixedly arranged below the bottom impurity discharge tank. A ceramic stirring part is rotationally and slidably fitted on the upper surface of the ceramic filter screen. A stirring motor mounting frame is fixedly installed at the top of the sedimentation tank. A stirring drive motor is fixedly installed on the stirring motor mounting frame in a manner convenient for disassembly. The output shaft of the stirring drive motor is fixed to the ceramic stirring part.

[0007] Preferably, the collection funnel is fixed on the bottom rotating disk. Two impurity passing holes are formed in the bottom rotating disk. One of the impurity passing holes is sleeved outside the collection funnel or the sedimentation tank, and the other impurity passing hole is located on the side of the collection funnel. A waste discharge funnel is fixedly arranged below this impurity passing hole, and a collection pool is arranged below the waste discharge funnel.

[0008] Preferably, a top sealing cover plate is fixedly sealed on the bottom rotating disk. A waste discharge disk is rotatably installed between the top sealing cover plate and the bottom rotating disk. Deposition concave holes are formed in the waste discharge disk, and the diameter of the deposition concave holes is the same as the inner diameters of the impurity passing holes and the sedimentation tank. A waste discharge drive motor for driving the waste discharge disk to rotate is fixedly installed on the lower surface of the bottom rotating disk.

[0009] Preferably, at least two cylinders are fixedly installed on the second flow channel. The end parts of the telescopic rods of the two cylinders are fixed with a downward pressure support platform. A plurality of top extrusion rods are slidably installed on the downward pressure support platform along the vertical direction. A plurality of bottom support rods with the same number as the top extrusion rods are fixedly installed on the inner wall of the grinding tank through a support rod bracket.

[0010] Preferably, an extrusion spring limiting ring is fixed on each top extrusion rod. An extrusion spring surrounding the top extrusion rod is fixed between each extrusion spring limiting ring and the lower surface of the downward pressure support platform. A sliding groove is also formed at the top of the top extrusion rod; all the top extrusion rods are arranged in a rectangular array, and each top extrusion rod is coaxially aligned with the corresponding bottom support rod. An arc-shaped table connecting rod is inserted and slidably fitted in the sliding groove formed in each row of top extrusion rods. One end of the arc-shaped table connecting rod is provided with a convex arc-shaped table, and the convex arc-shaped table and the sliding groove form a cam fit for driving the top extrusion rod to slide upward on the downward pressure support platform. Moreover, the positions of the convex arc-shaped tables corresponding to each row of top extrusion rods are all different, so that all the convex arc-shaped tables are arranged in a stepped manner.

[0011] Preferably, all the arc-shaped table connecting rods are fixed on an arc-shaped table connecting rod mounting frame. A rack is fixed on the arc-shaped table connecting rod mounting frame. The rack and the arc-shaped table connecting rod mounting frame are both slidably installed on the downward pressure support platform. A swing drive motor is also fixed on the downward pressure support platform, and a gear meshing with the rack is fixed on the output shaft of the swing drive motor.

[0012] Preferably, the sinking collection pool, the grinding pool, the collection funnel, and the bottom rotating disk are all fixedly installed on the bottom plate platform.

[0013] The present invention has the following beneficial effects compared with the prior art: (1) The cooperative design of the ceramic stirring part and the ceramic filter screen in the present invention uses the stirring drive motor to drive the stirring part to rotate continuously, which can efficiently clean the sediment on the ceramic filter screen. This design not only ensures the permeability of the filter screen, but also enables the abrasive sand to pass through the filter screen smoothly, reducing the possibility of blockage and further improving the overall working efficiency of the equipment; (2) The top pressing rod and the bottom support rod of the present invention firmly clamp the parts through the cylinder and the arc table connecting rod system. This system uses the cam principle to enable the top pressing rod to move up and down alternately, and there is always a top pressing rod in close contact with the surface of the parts, avoiding the loosening and displacement of the parts during the grinding process and ensuring the uniformity and accuracy of the grinding effect; (3) The present invention uses an induction heating coil to heat the metal powder inside the sedimentation tank. Utilizing the high thermal conductivity of the metal powder, it quickly melts into metal particles. This design can effectively concentrate the metal powder and avoid its influence on the grinding efficiency. At the same time, the metal particles are separated from the abrasive sand through the filter screen, realizing the efficient treatment of impurities and improving the working efficiency and grinding quality of the equipment. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in

[0016] Figure 3 It is a schematic diagram of the structure at the sinking collection tank of the present invention.

[0017] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at B in

[0018] Figure 5 It is a schematic diagram of the impurity discharge tray structure of the present invention.

[0019] Figure 6 It is a schematic diagram of the sedimentation tank structure of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure at the third conveying pipeline of the present invention.

[0021] Figure 8 It is a schematic diagram of the internal structure of the grinding tank of the present invention.

[0022] Figure 9 It is a schematic diagram of the sinking concave hole structure of the present invention.

[0023] In the figure: 101 - grinding pool; 102 - sunken concave hole; 103 - first flow hole; 104 - second flow hole; 105 - spoiler; 106 - first flow channel; 107 - second flow channel; 108 - first conveying screw; 109 - bottom support rod; 110 - support rod bracket; 111 - extrusion spring limit ring; 112 - top extrusion rod; 113 - sliding groove; 114 - sunken collection pool; 115 - sunken drive motor; 116 - second conveying screw; 117 - sedimentation tank; 118 - first conveying pipeline; 119 - bottom impurity discharge groove; 120 - impurity discharge plate; 121 - ceramic filter screen; 122 - third conveying screw; 123 - collection funnel; 124 - second conveying pipeline; 125 - reflux drive motor; 126 - top drive motor; 127 - stirring drive motor; 128 - stirring motor mounting bracket; 129 - ceramic stirring part; 130 - top sealing cover plate; 131 - third conveying pipeline; 132 - bottom rotating disk; 133 - impurity discharge funnel; 134 - impurity discharge drive motor; 135 - convex arc platform; 136 - downward pressure support platform; 137 - arc platform connecting rod; 138 - extrusion spring; 139 - arc platform connecting rod mounting bracket; 140 - rack; 141 - gear; 142 - swing drive motor; 143 - cylinder; 144 - deposition concave hole; 145 - bottom plate platform; 146 - collection pool; 147 - impurity passing hole. Detailed implementation manners

[0024] The following combines the attached Figures 1-9 , and further illustrates the technical solution of the present invention through specific implementation manners.

[0025] The present invention provides a device for repairing surface scratches of stainless steel parts, including a grinding pool 101. A sunken concave hole 102 is formed at the bottom of the inner wall of the grinding pool 101. A sunken collection pool 114 is fixedly communicated with the sunken concave hole 102. A second conveying screw 116 is rotatably installed at the bottom of the sunken collection pool 114. Symmetrically arranged first flow holes 103 and second flow holes 104 are also formed on the side wall of the grinding pool 101. A second flow channel 107 is fixedly communicated with the first flow hole 103. A first conveying screw 108 is rotatably installed in the second flow channel 107. A first flow channel 106 is fixedly communicated with the second flow hole 104. Multiple flow disturbing plates 105 are fixed in the first flow channel 106. A sedimentation pool 117 is also provided beside the grinding pool 101. The sedimentation pool 117 is communicated with the inside of the second flow channel 107 through a first conveying pipe 118. The inside of the sedimentation pool 117 is communicated with the inside of the sunken collection pool 114 through a third conveying pipe 131. One end of the second conveying screw 116 extends into the third conveying pipe 131. An induction heating coil is embedded in the sedimentation pool 117. A top driving motor 126 for driving the first conveying screw 108 to rotate is fixedly installed on the second flow channel 107. A sunken driving motor 115 for driving the second conveying screw 116 to rotate is fixedly installed on the sunken collection pool 114. A bottom impurity discharge groove 119 is formed at the bottom of the sedimentation pool 117. A collection funnel 123 is fixedly communicated with the bottom of the sedimentation pool 117. The collection funnel 123 is communicated with the inside of the first flow channel 106 through a second conveying pipe 124. A third conveying screw 122 is rotatably installed in the collection funnel 123. The bottom end of the third conveying screw 122 extends into the second conveying pipe 124, and is used for feeding the grinding sand inside the ceramic filter screen 121 into the second conveying pipe 124. A reflux driving motor 125 for driving the third conveying screw 122 to rotate is fixedly installed on the second conveying pipe 124.

[0026] A sedimentation tank 117 is fixedly provided with a ceramic filter screen 121 below a bottom impurity discharge tank 119. A ceramic stirring part 129 is rotationally and slidably fitted on the upper surface of the ceramic filter screen 121. A stirring motor mounting frame 128 is fixedly installed at the top of the sedimentation tank 117. A stirring drive motor 127 is fixedly mounted on the stirring motor mounting frame 128 in a manner convenient for disassembly. The output shaft of the stirring drive motor 127 is fixed to the ceramic stirring part 129. A collection funnel 123 is fixed on a bottom rotating disk 132. Two impurity passing holes 147 are formed in the bottom rotating disk 132. One of the impurity passing holes 147 is sleeved outside the collection funnel 123 or the sedimentation tank 117, and the other impurity passing hole 147 is located on the side of the collection funnel 123. An impurity discharge funnel 133 is fixed below the impurity passing hole 147. A collection pool 146 is arranged below the impurity discharge funnel 133. A top sealing cover plate 130 is fixedly sealed on the bottom rotating disk 132. An impurity discharge disk 120 is rotatably installed between the top sealing cover plate 130 and the bottom rotating disk 132. Deposition concave holes 144 are formed in the impurity discharge disk 120. The diameter of the deposition concave holes 144 is the same as the inner diameters of the impurity passing holes 147 and the sedimentation tank 117. An impurity discharge drive motor 134 for driving the impurity discharge disk 120 to rotate is fixedly installed on the lower surface of the bottom rotating disk 132. At least two cylinders 143 are fixedly installed on a second flow channel 107. The end parts of the expansion rods of the two cylinders 143 are fixed with a downward pressure support platform 136. A plurality of top extrusion rods 112 are slidably installed on the downward pressure support platform 136 in the vertical direction. A plurality of bottom support rods 109 with the same number as the top extrusion rods 112 are fixedly installed on the inner wall of a polishing tank 101 through a support rod bracket 110.

[0027] An extrusion spring limiting ring 111 is fixed on each top extrusion rod 112. An extrusion spring 138 that surrounds the top extrusion rod 112 is fixed between each extrusion spring limiting ring 111 and the lower surface of the downward pressure support platform 136. A sliding groove 113 is also provided at the top of the top extrusion rod 112; all the top extrusion rods 112 are arranged in a rectangular array, and each top extrusion rod 112 is coaxially aligned with the corresponding bottom support rod 109. An arc-shaped table connecting rod 137 is inserted and slidably fitted in the sliding groove 113 provided on each row of top extrusion rods 112. One end of the arc-shaped table connecting rod 137 is provided with a convex arc-shaped table 135. The convex arc-shaped table 135 and the sliding groove 113 form a cam fit to drive the top extrusion rod 112 to slide upward on the downward pressure support platform 136. Moreover, the positions of the convex arc-shaped tables 135 corresponding to each row of top extrusion rods 112 are all different, so that all the convex arc-shaped tables 135 are arranged in a stepped manner. All the arc-shaped table connecting rods 137 are fixed on the arc-shaped table connecting rod mounting frame 139. A rack 140 is fixed on the arc-shaped table connecting rod mounting frame 139. The rack 140 and the arc-shaped table connecting rod mounting frame 139 are both slidably mounted on the downward pressure support platform 136. A swing drive motor 142 is also fixed on the downward pressure support platform 136. A gear 141 that meshes with the rack 140 is fixed on the output shaft of the swing drive motor 142. The sinking collection pool 114, the grinding pool 101, the collection funnel 123, and the bottom rotating disk 132 are all fixedly installed on the bottom plate platform 145.

[0028] The working principle of a stainless steel part surface scratch repair device disclosed in the present invention is as follows: Place the parts flat on all the bottom support rods 109 (the maximum drop between the protrusions and depressions on the surface of the bottom support rod 109 should be less than the maximum displacement of the convex arc-shaped table 135 driving the top extrusion rod 112 to move), and then control the telescopic rod of the cylinder 143 to contract. The telescopic rod of the cylinder 143 drives the downward pressure support platform 136 to move downward. The downward pressure support platform 136 drives all the top extrusion rods 112 to move towards the parts. At this time, the bottom ends of all the top extrusion rods 112 will contact the surface of the parts, and at the same time, some of the extrusion springs 138 are in a compressed state. At this time, the bottom support rod 109 and the top extrusion rod 112 will clamp and fix the parts.

[0029] Start the sinking drive motor 115, the reflux drive motor 125, the top drive motor 126 and the stirring drive motor 127. Among them, the sinking drive motor 115 and the top drive motor 126 will drive the second conveying screw 116 and the first conveying screw 108 to rotate respectively. The first conveying screw 108 and the second conveying screw 116 are used to drive the polishing sand inside the polishing pool 101 to circulate. It can drive the polishing sand to flow outward or inward from the polishing pool 101. It should be noted that when it is necessary to complete the polishing with one clamping, the surface to be polished needs to face the direction of the top pressing rod 112.

[0030] The rotation of the first conveying screw 108 will drive the polishing sand to flow in the first conveying pipe 118, and the rotation of the second conveying screw 116 will drive the polishing sand to flow in the third conveying pipe 131. Among them, the polishing sand will be collected in the sedimentation tank 117. The output shaft of the stirring drive motor 127 drives the ceramic stirring part 129 to rotate. The rotation of the ceramic stirring part 129 will continuously clean the polishing sand deposited on the ceramic filter screen 121, so that the polishing sand can pass through the ceramic filter screen 121 and flow into the collection funnel 123. The reflux drive motor 125 will drive the third conveying screw 122 to rotate. The third conveying screw 122 will flow the polishing sand inside the collection funnel 123 into the second conveying pipe 124, and convey it to the first flow channel 106 through the second conveying pipe 124. Then, through the guidance of the tabular spoiler 105, the polishing sand can flow into the polishing pool 101 in parallel. When only the second conveying screw 116 rotates, the polishing sand will flow from the first flow channel 106 to the sinking collection tank 114. At this time, the upper surface of the part can be polished. On the contrary, when only the first conveying screw 108 rotates, the polishing sand will only flow horizontally, so as to polish the side surface of the part. When both of them rotate, the side surface and the upper surface can be polished at the same time.

[0031] In order to ensure that the upper surface of the part can be in contact with the polishing sand, at this time, the output shaft of the swing drive motor 142 is controlled in a cycle. The output shaft of the swing drive motor 142 drives the gear 141 to swing reciprocally, and the gear 141 drives the rack 140 to move reciprocally. Thus, all the arc-shaped table connecting rods 137 are driven to move reciprocally through the arc-shaped table connecting rod mounting frame 139. At this time, the convex arc-shaped table 135 on the arc-shaped table connecting rod 137 will form a cam fit with the sliding grooves 113 at different positions, so as to drive the corresponding top pressing rod 112 to move upward, so that the top pressing rod 112 is separated from the surface of the part. At this time, the polishing sand will contact the part. Since all the convex arc-shaped tables 135 are arranged in steps, not all the top pressing rods 112 are separated from the part at the same time, but staggered separation. Therefore, the clamping of the part by the top pressing rod 112 can still be ensured.

[0032] Over time, the metal powder ground by the grinding sand continuously remains in the grinding sand, which will affect the grinding and polishing efficiency at this time. At this time, it is necessary to start the induction heating coil on the sedimentation tank 117 and heat the metal powder inside the sedimentation tank 117 by induction heating. Since there is a large amount of metal powder, it will affect the grinding efficiency. At this time, the aggregated metal powder will melt together to form metal particles. These metal particles cannot pass through the ceramic filter screen 121 and will thus be filtered onto the upper surface of the ceramic filter screen 121. Over time, when the metal particles accumulate to seriously affect the passage of the grinding sand through the ceramic filter screen 121, control the impurity removal drive motor 134. The impurity removal drive motor 134 drives the impurity removal disk 120 to rotate, turning the sedimentation concave holes 144 to a position aligned with the impurity removal funnel 133. At this time, part of the grinding sand and the separated metal particles will fall into the impurity removal funnel 133 and then slide into the collection tank 146. At this time, the metal particles are manually screened out, and then the grinding sand is poured back into the grinding tank 101 or the sedimentation tank 117. In this process, it is necessary to separate the ceramic stirring part 129 from the ceramic filter screen 121, that is, lift up the stirring drive motor 127 so that the sedimentation concave holes 144 can rotate.

[0033] Finally, control the telescopic rod of the air cylinder 143 to extend, lift up the downward pressure support platform 136, so that all the top extrusion rods 112 are separated from the components. At this time, the components on the bottom support rod 109 can be taken out.

Claims

1. A stainless steel surface scratch repair device, characterized by: The grinding pool (101) comprises a grinding pool (101), wherein a sinking concave hole (102) is provided at the bottom of the inner wall of the grinding pool (101), a sinking collection pool (114) is fixedly connected to the sinking concave hole (102), a second conveying screw (116) is rotatably mounted at the bottom of the sinking collection pool (114), and a first flow hole (103) and a second flow hole (104) are symmetrically arranged on the side wall of the grinding pool (101), wherein the first flow hole (103) is fixedly connected to a second flow channel (107), a first conveying screw (108) is rotatably mounted in the second flow channel (107), wherein the second flow hole (104) is fixedly connected to the first flow channel (106), and a plurality of spoilers (105) are fixed in the first flow channel (106); A sedimentation tank (117) is also provided on the side of the polishing tank (101); the sedimentation tank (117) is connected to the interior of the second flow channel (107) via a first conveying pipe (118); the interior of the sedimentation tank (117) is connected to the interior of the sinking collection tank (114) via a third conveying pipe (131); one end of the second conveying screw (116) extends to the interior of the third conveying pipe (131); and an induction heating coil is embedded in the sedimentation tank (117); A bottom impurity discharge trough (119) is provided at the bottom of the sedimentation tank (117), and a collecting funnel (123) is fixedly connected to the bottom of the sedimentation tank (117). The collecting funnel (123) is connected to the inside of the first flow channel (106) via a second conveying pipe (124), wherein a third conveying screw (122) is rotatably installed in the collecting funnel (123), and the bottom end of the third conveying screw (122) extends into the second conveying pipe (124) and is used to convey the grinding sand inside the ceramic filter screen (121) into the second conveying pipe (124). A reflux drive motor (125) for driving the third conveying screw (122) to rotate is fixedly mounted on the second conveying pipeline (124); a ceramic filter screen (121) is fixedly mounted on the sedimentation tank (117) below the bottom impurity discharge trough (119); a ceramic stirring portion (129) is rotatably and slidably engaged on the upper surface of the ceramic filter screen (121); a stirring motor mounting frame (128) is fixedly mounted on the top of the sedimentation tank (117); a stirring drive motor (129) is fixedly mounted on the stirring motor mounting frame (128) in a manner that is easy to disassemble. 27, the output shaft of the stirring drive motor (127) is fixed to the ceramic stirring part (129); the collecting funnel (123) is fixed on the bottom rotating disk (132), and two impurity holes (147) are opened on the bottom rotating disk (132), one of the impurity holes (147) is sleeved on the outside of the collecting funnel (123) or the sedimentation tank (117), and the other impurity hole (147) is located on the side of the collecting funnel (123), and an impurity discharge funnel (133) is fixed below the impurity discharge hole (147). A collecting pool (146) is provided; a top sealing cover plate (130) is fixedly sealed on the bottom rotating disk (132); a debris removal disk (120) is rotatably mounted between the top sealing cover plate (130) and the bottom rotating disk (132); a sedimentation recess (144) is provided on the debris removal disk (120); the diameter of the sedimentation recess (144) is the same as the inner diameter of the debris passing hole (147) and the sedimentation tank (117); and a debris removal drive motor (134) for driving the debris removal disk (120) to rotate is fixedly mounted on the lower surface of the bottom rotating disk (132).

2. The stainless steel surface scratch repairing device according to claim 1, characterized in that: A top drive motor (126) for driving the first conveying screw (108) to rotate is fixedly mounted on the second flow channel (107), and a sinking drive motor (115) for driving the second conveying screw (116) to rotate is fixedly mounted on the sinking collection tank (114).

3. The stainless steel surface scratch repairing device according to claim 2, characterized in that: At least two cylinders (143) are fixedly mounted on the second flow channel (107); a downward pressing support platform (136) is fixedly mounted at the ends of the telescopic rods of the two cylinders (143); a plurality of top extrusion rods (112) are slidably mounted on the downward pressing support platform (136) along a vertical direction; and a plurality of bottom support rods (109) having the same number as the top extrusion rods (112) are fixedly mounted on the inner wall of the grinding pool (101) via support rod brackets (110).

4. The stainless steel surface scratch repairing device according to claim 3, characterized in that: A compression spring limiting ring (111) is fixed on each top compression rod (112), a compression spring (138) surrounding the top compression rod (112) is fixed between each compression spring limiting ring (111) and the lower surface of the downward pressure support platform (136), and a sliding groove (113) is also provided on the top of the top compression rod (112); All the top extrusion rods (112) are arranged in a rectangular array, and each top extrusion rod (112) is coaxially aligned with the corresponding bottom support rod (109). An arc-shaped platform connecting rod (137) is inserted and slidably engaged in the sliding groove (113) provided on each row of top extrusion rods (112). One end of the arc-shaped platform connecting rod (137) is provided with a raised arc-shaped platform (135). The raised arc-shaped platform (135) and the sliding groove (113) form a cam engagement for driving the top extrusion rods (112) to slide upward on the downward support platform (136). The positions of the raised arc-shaped platforms (135) corresponding to each row of top extrusion rods (112) are all the same, so that all the raised arc-shaped platforms (135) are arranged in a stepped manner.

5. The stainless steel surface scratch repairing device according to claim 4, characterized in that: All arc-shaped platform connecting rods (137) are fixed on an arc-shaped platform connecting rod mounting frame (139), a rack (140) is fixed on the arc-shaped platform connecting rod mounting frame (139), the rack (140) and the arc-shaped platform connecting rod mounting frame (139) are slidably mounted on the downward pressing support platform (136), a swing driving motor (142) is also fixed on the downward pressing support platform (136), and a gear (141) meshing with the rack (140) is fixed on the output shaft of the swing driving motor (142).

6. The stainless steel surface scratch repairing device according to claim 5, characterized in that: The sinking collection pool (114), the grinding pool (101), the collecting funnel (123), and the bottom rotating disk (132) are all fixedly mounted on the bottom plate platform (145).

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