Press-fit steel plate polishing device

Abstract

The utility model discloses a press-fit steel plate polishing device which comprises a concentric-square-shaped support, and a clamping and fixing assembly used for fixing a press-fit steel plate is installed on the inner wall of the bottom of the concentric-square-shaped support. A cross-shaped electric sliding rail is fixedly installed on the inner wall of the top of the concentric-square-shaped support, and a multi-stage electric telescopic rod is fixedly installed at the bottom of the movable end of the cross-shaped electric sliding rail. By arranging a series of structures, a polishing position can be sealed, surrounded and shielded integrally and automatically during polishing, the phenomena of outward dust raising and water splashing are effectively avoided, the phenomena that the surrounding environment is polluted and the machining environment is influenced are avoided, the phenomenon that a site is dirty and messy due to the fact that sewage formed by mixing dust and water is splashed to the outside is avoided, and the working efficiency is improved. And in addition, sewage discharging and collecting work can be carried out in time while water spraying is carried out for assisting polishing, the phenomenon that a large amount of sewage flows out when opened after polishing due to the fact that a large amount of sewage is left is prevented, and the use environmental protection performance is further improved.

Description

Technical Field

[0001] This utility model relates to the field of steel plate polishing technology, specifically to a steel plate polishing device. Background Technology

[0002] With the rapid development of printed circuit board technology, integrated printed circuit boards have become the mainstream circuit boards. Corresponding circuit boards are made according to different circuit diagrams. In the production of printed circuit boards, especially for multilayer printed circuit boards, in order to strengthen the firmness between different layers, it is usually necessary to use a lamination process, that is, to press the layers together with a steel plate. After the steel plate is used, it must be ground and polished to remove the PP glue on the surface of the steel plate to prevent pitting or dents on the surface of the circuit board when it is reused.

[0003] Existing polishing machines for pressed steel plates often spray water on the polishing area during polishing to better assist the polishing process. However, this process has the following problems: the dust and water generated during polishing are easily dispersed and splashed outwards, polluting the surrounding environment and affecting the processing environment. Furthermore, the wastewater formed by the mixture of dust and water splashes externally, causing the site to become dirty and messy, resulting in unsatisfactory environmental protection and aesthetics. In view of this, this application proposes a polishing device for pressed steel plates to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a polishing device for pressed steel plates to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a polishing device for pressed steel plates, including a U-shaped support, wherein a clamping component for fixing the pressed steel plate is installed on the bottom inner wall of the U-shaped support;

[0006] A cross-shaped electric slide rail is fixedly installed on the top inner wall of the U-shaped support. A multi-stage electric telescopic rod is fixedly installed at the bottom of the moving end of the cross-shaped electric slide rail. A U-shaped frame is fixedly installed at the extended end of the multi-stage electric telescopic rod. A support pipe is fixedly connected to the bottom of the U-shaped frame. The bottom of the support pipe is set as a cover-shaped structure. A rotary polishing component located inside the support pipe and used for polishing the pressed steel plate is rotatably embedded in the bottom of the U-shaped frame. A drive motor with an output shaft fixedly connected to the rotary polishing component is fixedly installed on the top inner wall of the U-shaped frame. The cross-shaped electric slide rail is used to drive the U-shaped frame to move back, forth, left, and right for adjustment. The multi-stage electric telescopic rod is used to drive the U-shaped frame to move up and down. The rotary polishing component is used to rotary polish the top of the pressed steel plate when the drive motor is started, and is used to change the polishing position when the U-shaped frame moves back, forth, left, and right.

[0007] The inner bottom of the branch pipe is slidably fitted with a retaining sleeve. A rubber ring with a smooth bottom is glued and fixed to the bottom of the retaining sleeve. Vertical missile support components that are slidably connected to the branch pipe are fixedly connected to both sides of the retaining sleeve. The vertical missile support components are used to elastically stretch the retaining sleeve and rubber ring to the top of the press-fit steel plate when the return frame moves down and drives the branch pipe down. The retaining sleeve and rubber ring are used to stably surround and shield the polished position to prevent dust and external water splash.

[0008] A water supply spraying assembly for spraying water into the inside of the retaining sleeve is fixedly installed on the right side of the branch pipe, and a sludge extraction assembly for removing sludge from the inside of the rubber ring is fixedly installed on the left side of the branch pipe; the water supply spraying assembly is used to spray water into the rotary polishing position to assist in better polishing work, and the sludge extraction assembly is used to extract and collect wastewater mixed with water and dust.

[0009] Preferably, the clamping assembly includes a limiting rod fixedly connected to the inner wall of the bottom of the U-shaped support, and an electric push rod is embedded and fixedly installed on the inner wall of the right side of the U-shaped support. The protruding end of the electric push rod is fixedly connected to a clamping block located to the right of the limiting rod.

[0010] Preferably, the rotary polishing assembly includes a rotating shaft rotatably mounted on the bottom of the rotary frame. The top end of the rotating shaft is fixedly connected to the bottom end of the output shaft of the drive motor. The bottom end of the rotating shaft extends into the retaining sleeve and is fixedly connected to a polishing disc. The polishing disc is located inside a rubber ring, and the bottom position of the polishing disc is higher than the bottom position of the rubber ring.

[0011] Preferably, the vertical missile support assembly includes T-shaped guide rods, with the adjacent sides of the two T-shaped guide rods fixedly connected to both sides of the retaining sleeve, and vertical guide grooves opened on both sides of the bottom end of the branch pipe. The T-shaped guide rods are slidably sleeved in the corresponding vertical guide grooves, and a spring is fixedly connected between the bottom inner wall of the T-shaped guide rod and the bottom end of the branch pipe. The spring is movably sleeved on the corresponding T-shaped guide rod.

[0012] Preferably, the water supply spraying assembly includes a water tank fixedly installed on the top right side of the branch pipe, a water pump fixedly installed at the bottom of the water tank, the water pump inlet extending into the water tank, the water pump outlet connected to a fixed water pipe, one end of the water pipe extending into the branch pipe and connected to a fixed downwardly inclined nozzle.

[0013] Preferably, the sludge suction assembly includes a sludge storage tank and a sludge suction pump fixedly installed on the left side of the branch pipe. The outlet of the sludge suction pump extends into the sludge storage tank, and the inlet of the sludge suction pump is connected to and fixedly connected to a flexible hose. The bottom end of the flexible hose extends into the baffle sleeve, and the bottom left side of the flexible hose is fixedly connected to the inner left side wall of the baffle sleeve. A drain valve is connected to and fixedly connected to the bottom left side of the sludge storage tank.

[0014] Preferably, connecting rods are fixedly connected to the inner walls of the front and rear sides of the branch pipe, and a first bearing is fixedly connected between the two connecting rods. The inner ring of the first bearing is fixedly fitted to the outer side of the rotating shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The pressed steel plate is fixed by the combination of the set U-shaped support and clamping components;

[0017] 2. Through the combination of the cross-shaped electric slide rail, multi-stage electric telescopic rod, circular frame, support pipe, drive motor, rotary polishing assembly, vertical missile support assembly, guard sleeve and rubber ring, the polishing position can be automatically sealed and shielded in one piece during polishing. This can effectively prevent dust and water from splashing outward, thereby avoiding pollution of the surrounding environment and affecting the processing environment. It also prevents the wastewater formed by the mixture of dust and water from splashing outward and causing a dirty and messy site, thus improving the environmental protection and aesthetics of use.

[0018] 3. Through the combination of branch pipes, protective sleeves, rubber rings, water spray components, and sludge extraction components, water can be sprayed onto the polishing position to assist the polishing disc in performing better polishing work and to cool the polishing position. It can also extract and remove wastewater in a timely manner during polishing. With the integrated action of water spraying and sludge extraction, the effect of timely discharge and collection of sludge is achieved while assisting the polishing work, preventing a large amount of wastewater from remaining and flowing out in large quantities when the polishing is turned on, thus further improving the environmental friendliness of use.

[0019] This utility model incorporates a series of structures that automatically enclose and shield the polishing area during polishing, effectively preventing dust and water splashing. This avoids polluting the surrounding environment and affecting the processing environment, and prevents wastewater from mixing with dust and water from splashing onto the outside, resulting in a messy site. This improves the environmental friendliness and aesthetics of the product. Furthermore, it facilitates timely drainage and collection of wastewater while spraying water to assist polishing, preventing large amounts of wastewater from remaining and flowing out when the polishing is opened, further enhancing its environmental friendliness. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the steel plate polishing device proposed in this utility model;

[0021] Figure 2 for Figure 1 Enlarged cross-sectional view of part A in the diagram;

[0022] Figure 3 for Figure 2 A magnified structural diagram of part B in the diagram.

[0023] In the diagram: 1. U-shaped support; 101. Limiting rod; 102. Electric push rod; 103. Clamping block; 2. Cross-shaped electric slide rail; 201. Multi-stage electric telescopic rod; 3. U-shaped frame; 4. Branch pipe; 5. Drive motor; 501. Rotating shaft; 502. Polishing disc; 6. Protective sleeve; 601. Rubber ring; 7. T-shaped guide rod; 701. Spring; 8. Water tank; 801. Water pump; 802. Nozzle; 9. Sewage storage tank; 901. Sewage pump; 902. Hose. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 3 As shown, the pressing steel plate polishing device proposed in this embodiment includes a U-shaped support 1, and a clamping component for fixing the pressing steel plate is installed on the bottom inner wall of the U-shaped support 1.

[0026] A cross-shaped electric slide rail 2 is fixedly installed on the top inner wall of the U-shaped support 1. A multi-stage electric telescopic rod 201 is fixedly installed at the bottom of the moving end of the cross-shaped electric slide rail 2. A U-shaped frame 3 is fixedly installed at the extended end of the multi-stage electric telescopic rod 201. A branch pipe 4 is fixedly connected to the bottom of the U-shaped frame 3. The bottom of the branch pipe 4 is set as a cover-shaped structure. A rotary polishing component located inside the branch pipe 4 and used for polishing the pressed steel plate is rotatably embedded in the bottom of the U-shaped frame 3. A drive motor 5 with an output shaft fixedly connected to the rotary polishing component is fixedly installed on the top inner wall of the U-shaped frame 3. The cross-shaped electric slide rail 2 is used to drive the U-shaped frame 3 to move back and forth and left and right for adjustment. The multi-stage electric telescopic rod 201 is used to drive the U-shaped frame 3 to move up and down. The rotary polishing component is used to rotary polish the top of the pressed steel plate when the drive motor 5 is started, and is used to change the polishing position when the U-shaped frame 3 moves back and forth and left and right.

[0027] A retaining sleeve 6 is slidably fitted on the bottom inner side of the branch pipe 4. A rubber ring 601 with a smooth bottom surface is bonded and fixed to the bottom of the retaining sleeve 6. Vertical missile support components that are slidably connected to the branch pipe 4 are fixedly connected on both sides of the retaining sleeve 6. The vertical missile support components are used to elastically stretch the retaining sleeve 6 and the rubber ring 601 to the top of the press-fit steel plate when the return frame 3 moves down and drives the branch pipe 4 down. The retaining sleeve 6 and the rubber ring 601 are used to stably surround and shield the polished position to prevent dust and water splashing.

[0028] A water supply spraying assembly for spraying water into the inside of the retaining sleeve 6 is fixedly installed on the right side of the branch pipe 4, and a sludge extraction assembly for extracting sludge from the inside of the rubber ring 601 is fixedly installed on the left side of the branch pipe 4; the water supply spraying assembly is used to spray water into the swirl polishing position to assist in better polishing work, and the sludge extraction assembly is used to extract and collect wastewater mixed with water and dust.

[0029] Specifically, the clamping assembly includes a limiting rod 101 fixedly connected to the inner wall of the bottom of the U-shaped support 1, an electric push rod 102 embedded and fixedly installed on the inner wall of the right side of the U-shaped support 1, and a clamping block 103 located to the right of the limiting rod 101 fixedly connected to the protruding end of the electric push rod 102. The limiting rod 101, the electric push rod 102 and the clamping block 103 cooperate to clamp the pressed steel plate when the pressed steel plate is placed on the inner wall of the bottom of the U-shaped support 1 and in contact with the right side of the limiting rod 101. The electric push rod 102 drives the clamping block 103 to move to the left to clamp the pressed steel plate, preventing the pressed steel plate from shifting during the rotary polishing process.

[0030] Furthermore, the rotary polishing assembly includes a rotating shaft 501 rotatably mounted at the bottom of the rotary frame 3. The bottom of the rotary frame 3 has a circular through-hole, within which a second bearing is fixedly fitted. The inner ring of the second bearing is fixedly fitted to the outer side of the rotating shaft 501, achieving the effect of rotating the rotating shaft 501. The top end of the rotating shaft 501 is fixedly connected to the bottom end of the output shaft of the drive motor 5. The bottom end of the rotating shaft 501 extends into the retaining sleeve 6 and is fixedly connected to a polishing disc 502. Connecting rods are fixedly connected to the front and rear inner walls of the branch pipe 4. A first bearing is fixedly connected between the two connecting rods. The inner ring of the first bearing is fixedly fitted to the outer side of the rotating shaft 501, achieving the effect of rotating the rotating shaft 501. The polishing disc 502 is positioned... Inside the rubber ring 601, the bottom position of the polishing disc 502 is higher than the bottom position of the rubber ring 601. The rotating shaft 501 and the polishing disc 502 are designed to work together. When the forming frame 3 moves down and drives the branch pipe 4 down, the forming frame 3 also drives the polishing disc 502 down to the top of the pressed steel plate through the rotating shaft 501. The rotating shaft 501 is driven by the drive motor 5 to rotate, and the rotating shaft 501 drives the polishing disc 502 to rotate and perform rotary polishing work on the top of the pressed steel plate. When the forming frame 3 moves back and forth and left and right, it will drive the retaining sleeve 6 to move back and forth and left and right as a whole through the branch pipe 4, and drive the polishing disc 502 to move back and forth and left and right through the rotating shaft 501 to change the polishing position, so as to gradually polish the entire top surface of the pressed steel plate.

[0031] Furthermore, the vertical missile support assembly includes T-shaped guide rods 7. The adjacent sides of two T-shaped guide rods 7 are fixedly connected to both sides of the retaining sleeve 6. Vertical guide grooves are provided on both sides of the bottom end of the branch pipe 4. The T-shaped guide rods 7 are slidably fitted into the corresponding vertical guide grooves. A spring 701 is fixedly connected between the bottom inner wall of the T-shaped guide rod 7 and the bottom end of the branch pipe 4. The spring 701 is movably fitted onto the corresponding T-shaped guide rod 7. The T-shaped guide rods 7, springs 701, and vertical guide grooves work together so that when the return frame 3 moves down, causing the branch pipe 4 to move down, the branch pipe 4, through the retaining sleeve 6, causes the rubber ring 601 to move down until it contacts the top of the pressed steel plate. Due to the polishing disc 502... The bottom position is higher than the bottom position of the rubber ring 601. At this time, when the return frame 3 drives the polishing disc 502 to move down through the rotating shaft 501 and contact the top of the pressed steel plate, the return frame 3 drives the branch pipe 4 to slide down on the retaining sleeve 6 and the two T-shaped guide rods 7, and compresses the two springs 701. The two springs 701 in the compressed state use the two T-shaped guide rods 7 and the retaining sleeve 6 to elastically attach the rubber ring 601 to the top of the pressed steel plate. This allows the rubber ring 601 and the retaining sleeve 6 to stably surround and shield the polishing position, preventing dust from drifting outward and avoiding the phenomenon of a large amount of water splashing out during water spraying, which affects the processing environment.

[0032] Furthermore, the water supply spraying assembly includes a water tank 8 fixedly installed at the top right side of the branch pipe 4. A water pump 801 is fixedly installed at the bottom of the water tank 8. The inlet of the water pump 801 extends into the water tank 8, and the outlet of the water pump 801 is connected to a water pipe. One end of the water pipe extends into the branch pipe 4 and is connected to a downwardly inclined nozzle 802. The right side of the branch pipe 4 has a movable through hole for the water pipe to pass through. The water tank 8, water pump 801, water pipe and nozzle 802 work together to draw water from the water tank 8 using the water pump 801 and supply it to the nozzle 802 through the water pipe. The water is sprayed out by the nozzle 802 to the polishing position to assist the polishing disc in better polishing and to cool the polishing position.

[0033] Furthermore, the sludge suction assembly includes a sludge storage tank 9 and a sludge pump 901 fixedly installed on the left side of the branch pipe 4. The outlet of the sludge pump 901 extends into the sludge storage tank 9, and the inlet of the sludge pump 901 is connected to and fixedly connected to a flexible hose 902. The bottom end of the flexible hose 902 extends into the retaining sleeve 6. A circular insertion hole is provided on the branch pipe 4 for the flexible hose 902 to pass through. The bottom left side of the flexible hose 902 is fixedly connected to the inner left side wall of the retaining sleeve 6. A drain valve is fixedly connected to and fixedly connected to the bottom left side of the sludge storage tank 9. The system is equipped with a sludge pump 901, a sludge storage tank 9, a hose 902, and a drain valve. Since the dust generated at the polishing position mixes with water to form wastewater, the sludge pump 901 uses the hose 902 to extract the wastewater from the rubber ring 601 and pump it into the sludge storage tank 9 for temporary storage. This achieves the effect of timely extraction and removal of wastewater during polishing, preventing a large amount of water from remaining inside and flowing out in large quantities when the system is opened after polishing. After use, the drain valve can be connected to an external drain pipe to open and discharge the wastewater.

[0034] The method of use in this embodiment is as follows: The pressed steel plate is placed on the inner wall of the bottom of the U-shaped support 1, and it is in contact with the right side of the limiting rod 101. The electric push rod 102 is activated in the forward direction to drive the clamping block 103 to move to the left to clamp the pressed steel plate. The multi-stage electric telescopic rod 201 is activated in the forward direction to drive the U-shaped frame 3 to move downwards. The U-shaped frame 3 drives the polishing disc 502 downwards via the rotating shaft 501. Simultaneously, the U-shaped frame 3 drives the retaining sleeve 6 downwards via the branch pipe 4. When the retaining sleeve 6 drives the rubber ring 601 downwards to contact the top of the pressed steel plate, since the bottom position of the polishing disc 502 is higher than the bottom position of the rubber ring 601, as the U-shaped frame 3 continues to drive the polishing disc 502 downwards via the rotating shaft 501 to contact the top of the pressed steel plate, the U-shaped frame 3 also drives the branch pipe 4 to slide downwards on the retaining sleeve 6 and the two T-shaped guide rods 7, compressing the two springs 701. The compressed spring 701, through two T-shaped guide rods 7 and a retaining sleeve 6, elastically attaches the rubber ring 601 to the top of the pressed steel plate. This allows the rubber ring 601 and the retaining sleeve 6 to stably surround and shield the polishing position. The drive motor 5, water pump 801, and sewage pump 901 are started. The drive motor 5 drives the rotating shaft 501 to rotate, and the rotating shaft 501 drives the polishing disc 502 to rotate and perform rotary polishing on the top of the pressed steel plate. By using the retaining sleeve 6 to elastically attach the rubber ring 601 to the top of the pressed steel plate to surround and shield the polishing position, dust and water can be directly shielded from scattering and splashing. This effectively prevents dust and water splashing during polishing, avoiding pollution of the surrounding environment and affecting the processing environment. It also prevents wastewater from the mixture of dust and water from splashing onto the outside, causing a messy site, thus improving the environmental friendliness and aesthetics of the product.

[0035] During polishing, a cross-shaped electric slide rail 2 is used to drive the rotating frame 3 to move back, forth, left, and right via a multi-stage electric telescopic rod 201. As the rotating frame 3 moves, the support pipe 4 drives the retaining sleeve 6 to move back, forth, left, and right as a whole, and the rotating shaft 501 drives the polishing disc 502 to move back, forth, left, and right to change the polishing position, thus gradually polishing the entire top surface of the pressed steel plate. When the water pump 801 is turned on during polishing, it draws water from the water tank 8 and supplies it to the nozzle 802 through a water pipe. The water is then sprayed from the nozzle 802 to the polishing position, assisting the polishing disc in achieving better polishing. The polishing process also cools the polishing area. Since the dust generated at the polishing area mixes with water to form wastewater, when the sludge pump 901 is turned on, the wastewater is drawn from the rubber ring 601 through the hose 902 and pumped into the sludge storage tank 9 for temporary storage. This achieves the effect of timely extraction and removal of wastewater during polishing. With the combined action of water spraying and sludge pumping, it is convenient to assist in the polishing process while timely discharge and collection of sludge, preventing a large amount of wastewater from remaining and flowing out in large quantities when the valve is opened after polishing. This further improves the environmental friendliness of the product. After use, simply connect the drain valve to the external drain pipe to open and discharge the wastewater.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A press-hardened steel sheet polishing device comprising a meander-shaped support (1), characterized in that: A clamping assembly for fixing the press-steel plate is mounted on the inner wall of the bottom of the U-shaped support (1); A cross-shaped electric sliding rail (2) is fixedly mounted on the top inner wall of the U-shaped support (1), the moving end bottom of the cross-shaped electric sliding rail (2) is fixedly mounted with a multi-stage electric telescopic rod (201), the extending end of the multi-stage electric telescopic rod (201) is fixedly mounted with a U-shaped frame (3), the bottom of the U-shaped frame (3) is fixedly connected with a branch pipe (4), the bottom of the branch pipe (4) is provided in a cover-shaped structure, the bottom of the U-shaped frame (3) is rotatably embedded with a rotary abrasive polishing assembly located in the branch pipe (4) and used for polishing the press-steel plate, and the top inner wall of the U-shaped frame (3) is fixedly mounted with a driving motor (5) with the output shaft of the driving motor (5) fixedly connected with the rotary abrasive polishing assembly. The inner bottom of the branch pipe (4) is slidably sleeved with a protection sleeve (6), the bottom of the protection sleeve (6) is adhesively fixed with a rubber ring (601) with a smooth bottom, and the two sides of the protection sleeve (6) are fixedly connected with vertical guide missile supporting assemblies which are slidably connected with the branch pipe (4). A water supply spraying assembly for spraying water in the protection sleeve (6) is fixedly mounted on the right side of the branch pipe (4), and a dirt suction assembly for sucking dirt in the rubber ring (601) is fixedly mounted on the left side of the branch pipe (4).

2. The press-hardened steel sheet polishing device according to claim 1, characterized in that: The clamping assembly comprises a limiting rod (101) fixedly connected to the bottom inner wall of the U-shaped support (1), and an electric push rod (102) embedded and fixed to the right inner wall of the U-shaped support (1), wherein the extending end of the electric push rod (102) is fixedly connected with a clamping block (103) located to the right of the limiting rod (101).

3. The press-hardened steel sheet polishing apparatus according to claim 1, characterized in that: The rotary abrasive polishing assembly comprises a rotating shaft (501) rotatably embedded in the bottom of the U-shaped frame (3), the top end of the rotating shaft (501) is fixedly connected with the bottom end of the output shaft of the driving motor (5), the bottom end of the rotating shaft (501) extends into the protection sleeve (6) and is fixedly connected with a polishing disc (502), the polishing disc (502) is located in the rubber ring (601), and the bottom position of the polishing disc (502) is higher than the bottom position of the rubber ring (601).

4. The press-hardened steel sheet polishing apparatus according to claim 1, characterized in that: The vertical guide missile supporting assembly comprises T-shaped guide rods (7), the two T-shaped guide rods (7) are fixedly connected with the two sides of the protection sleeve (6) respectively, the bottom ends of the branch pipe (4) are each provided with a vertical guide slot, the T-shaped guide rods (7) are slidably sleeved in the corresponding vertical guide slots, and springs (701) are fixedly connected between the bottom inner walls of the T-shaped guide rods (7) and the bottom ends of the branch pipe (4), and the springs (701) are movably sleeved on the corresponding T-shaped guide rods (7).

5. The press-hardened steel sheet polishing apparatus according to claim 1, characterized in that: The water supply spraying assembly comprises a water tank (8) fixedly mounted on the right top of the branch pipe (4), the bottom of the water tank (8) is fixedly mounted with a water pump (801), the water inlet of the water pump (801) extends into the water tank (8), the water outlet of the water pump (801) is communicated and fixedly provided with a water pipe, and one end of the water pipe extends into the branch pipe (4) and is communicated and fixedly provided with a downwardly inclined spray head (802).

6. The press-hardened steel sheet polishing apparatus according to claim 1, characterized in that: The sewage pumping assembly comprises a sewage storage tank (9) and a sewage pump (901) fixedly installed on the left side of the branch pipe (4), the water outlet of the sewage pump (901) extends into the sewage storage tank (9), the water inlet of the sewage pump (901) is communicated with a hose (902) fixedly arranged, the bottom end of the hose (902) extends into the guard sleeve (6), the left bottom of the hose (902) is fixedly connected with the left inner wall of the guard sleeve (6), and the left bottom of the sewage storage tank (9) is communicated with a sewage valve fixedly arranged.

7. The press-hardened steel sheet polishing apparatus according to claim 3, characterized in that: The front and rear inner walls of the branch pipe (4) are fixedly connected with connecting rods, the first bearing is fixedly connected between the two connecting rods, and the inner ring of the first bearing is fixedly sleeved with the outer side of the rotating shaft (501).

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