A flushing system for bridge housing grinding equipment

Abstract

A flushing system for a bridge housing grinding equipment, the bridge housing grinding equipment includes a dustproof room, the flushing system includes a side hole flushing mechanism, an inner cavity cleaning mechanism, a spiral chip conveyor, a water chip receiving and removing part, a chain plate filter separation chip conveyor and a water collecting and conveying mechanism arranged in the dustproof room, the side hole flushing mechanism is respectively arranged at the hole positions on both sides of the bridge housing, the inner cavity cleaning mechanism is arranged below the inner cavity of the bridge housing, the water chip receiving and removing part is located below the bridge housing, the spiral chip conveyor is arranged in the water chip receiving and removing part, the chain plate filter separation chip conveyor is located below the water chip receiving and removing part and docked with the water chip receiving and removing part, the water collecting and conveying mechanism is arranged on one side of the chain plate filter separation chip conveyor and is connected with the chain plate filter separation chip conveyor, and the water collecting and conveying mechanism is respectively connected with the side hole flushing mechanism and the inner cavity cleaning mechanism. The flushing system of the present invention combines the grinding step and the flushing step, greatly shortens the beat between the two steps, improves the production efficiency of the entire line, and the protective room can prevent dust and water splashing during grinding and flushing.

Description

Technical Field

[0001] The invention relates to a bridge housing polishing device, in particular to a flushing system of the bridge housing polishing device. Background Art

[0002] At present, most of the bridge shell grinding equipment in the industry adopts automated grinding equipment. However, when cleaning the bridge shell, a manually operated crane is required to lift the bridge shell to a cleaning box to immerse and clean the inner cavity. After the bridge shell is cleaned, it needs to be lifted to the workbench of the grinding equipment by a crane for the next step of grinding. This manual operation method has a low degree of automation, and the loading and unloading of the manually operated crane affects the efficiency of the grinding equipment. Moreover, this cleaning method involves the simultaneous operation of humans and machines, and there is a possibility of misoperation and collision with the machine.

[0003] Therefore, further improvements are necessary. Summary of the invention

[0004] The purpose of the present invention is to provide a flushing system for bridge housing grinding equipment which has a simple structure, a high degree of automation, high production efficiency, safety and reliability, can prevent dust and water splashing, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A flushing system for a bridge housing grinding equipment designed for this purpose, the bridge housing grinding equipment includes a dustproof room, and is characterized in that: the flushing system includes a side hole flushing mechanism, an inner cavity cleaning mechanism, a spiral chip conveyor, a water chip receiving and removal part, a chain plate filter and separation chip conveyor and a water collecting and supplying mechanism arranged in the dustproof room, the side hole flushing mechanisms are respectively arranged at the hole positions on both sides of the bridge housing, the inner cavity cleaning mechanism is arranged below the inner cavity of the bridge housing, the water chip receiving and removal part is located below the bridge housing, the spiral chip conveyor is arranged in the water chip receiving and removal part, the chain plate filter and separation chip conveyor is located below the water chip receiving and removal part and is connected to the water chip receiving and removal part, the water collecting and supplying mechanism is arranged on one side of the chain plate filter and separation chip conveyor and is connected to the chain plate filter and separation chip conveyor, and the water collecting and supplying mechanism is respectively connected to the side hole flushing mechanism and the inner cavity cleaning mechanism.

[0006] A protection room is arranged in the dustproof room, and a bridge housing, a side hole flushing mechanism, an inner cavity cleaning mechanism, a spiral chip conveyor and a water receiving and chip removing part are arranged in the protection room. The protection room includes water retaining plates located on both sides of the bridge housing and a water retaining sliding door located on the rear side of the bridge housing. The water retaining sliding door opens or closes the protection room when it slides.

[0007] A lifting door that moves up and down is arranged on the front side of the protection room. When the lifting door moves, the protection room is opened or closed. Lifting door connecting plates are arranged on both sides of the lifting door. The lifting door is arranged on the lifting door connecting plates for sliding up and down through a guide rail assembly. A driving component is arranged on the front side of the lifting door, and the driving component is connected to the lifting door.

[0008] The side hole flushing mechanism includes a water inlet, a manifold and a fixing frame. A turning frame for fixing the bridge shell is arranged in the protection room. The fixing frame is arranged on the turning frame. The water inlet is fixed on the fixing frame. A water inlet is arranged at one end of the water inlet, and the water inlet is connected to the water collecting and conveying mechanism. The other end of the water inlet is connected to the manifold. A water outlet is arranged at the end of the manifold, and the water outlet is inserted into the holes on both sides of the bridge shell.

[0009] The inner cavity cleaning mechanism comprises a lifting platform and a confluence piece, wherein the confluence piece is arranged on the top of the lifting platform, a plurality of nozzles are arranged on the top of the confluence piece, a water inlet joint is arranged on the side of the confluence piece, and the water inlet joint is connected to the water collection and delivery mechanism.

[0010] The water receiving and chip removing part comprises a water receiving tray and a chip removing groove. An opening is arranged at the center of the water receiving tray. The chip removing groove is arranged at the bottom of the opening. The water receiving tray and the chip removing groove are in a funnel shape.

[0011] The spiral chip conveyor is arranged in the water receiving tray and comprises a driving motor and a screw rod. The driving motor is connected to the screw rod through a coupling. A groove is arranged at the bottom of the chip conveyor groove and the screw rod is arranged in the groove.

[0012] A water receiving chip removal groove is arranged on the other side of the chain plate filtering and separating chip removal machine, a chip removal opening is arranged at one end of the chip removal groove, the chip removal opening is butt-jointed with the water receiving chip removal groove, and the water receiving chip removal groove is located below the chip removal opening.

[0013] The water collecting and conveying mechanism includes a water collecting box and a water pump. The water collecting box is arranged on one side of the chain plate filtering and separating chip conveyor, and its interior is connected with the chain plate filtering and separating chip conveyor. The water pump is arranged on the water collecting box and is connected with the interior of the water collecting box. The water pump is connected to the water inlet and the water inlet joint through water pipes.

[0014] Positioners are arranged on both sides of the protection room, and the positioners are connected to the ends of the turning frames. When the bridge shell grinding equipment is grinding or cleaning the bridge shell, the positioners turn the bridge shell through the turning frames; a robot for grinding the bridge shell is arranged in front of the protection room, and the robot is located on one side of the lifting door.

[0015] The present invention arranges a flushing system in the bridge shell grinding equipment. When the bridge shell needs to be cleaned during the bridge shell grinding process, the bridge shell can be directly flushed through the side hole flushing mechanism and the inner cavity cleaning mechanism. Therefore, it is no longer necessary to use a manually operated crane to lift the bridge shell to the cleaning box for immersion and cleaning. When the bridge shell is cleaned, the flushing water and iron chips are guided to the water receiving and chip removal parts under the bridge shell, and the water and iron chips are discharged to the chain plate filtering and separating chip removal machine on the side through the spiral chip removal machine on the water receiving and chip removal parts. The chain plate filtering and separating chip removal machine separates and filters the water and iron chips, and the separated and filtered water flows into the water collecting and conveying mechanism, and then the water collecting and conveying mechanism re-conveys the filtered water to the side hole flushing mechanism and the inner cavity cleaning machine. The bridge housing is then rinsed and the cycle continues. After the bridge housing is rinsed, it can be polished by the robot. The whole process does not require the bridge housing to be moved away from the polishing equipment, nor does it require manual operation. It has a high degree of automation and there will be no simultaneous operation of man and machine. At the same time, this flushing system combines the polishing step with the flushing step, which greatly shortens the cycle between the two steps and improves the production efficiency of the entire line. In addition, the bridge housing is polished and rinsed in a protective room, which can prevent the dust and water generated during polishing and flushing from splashing to other positions of the polishing equipment, thereby contaminating the polishing equipment or damaging the electrical components of the polishing equipment, thus forming a good protection for the polishing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a bridge housing grinding device in one embodiment of the present invention.

[0017] Figure 2-Figure 7 It is a partial structural schematic diagram of different orientations of a bridge housing grinding device in one embodiment of the present invention.

[0018] Figure 8 Schematic diagram of the overall structure of the bridge housing in one embodiment of the present invention.

[0019] Fig. 9 The figure is a schematic diagram of the overall structure of a water receiving tray in one embodiment of the present invention.

[0020] Fig.10 It is a schematic diagram of the overall structure of a chain plate filtering and separating chip conveyor and a water collecting and conveying mechanism in one embodiment of the present invention.

[0021] Fig.11 Schematic diagram of the overall structure of the chip removal groove in one embodiment of the present invention.

[0022] Fig.12 Schematic diagram of the overall structure of the inner cavity cleaning mechanism in one embodiment of the present invention.

[0023] Fig.13 It is a schematic diagram of the overall structure of the side hole flushing mechanism in one embodiment of the present invention.

[0024] Fig.14It is a schematic diagram of the overall structure of another aspect of the side hole flushing mechanism in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 14 The flushing system of the bridge housing grinding equipment includes a dustproof room 1, and the flushing system includes a side hole flushing mechanism 2, an inner cavity cleaning mechanism 3, a spiral chip conveyor 4, a water chip collecting and removing component 5, a chain plate filtering and separating chip conveyor 6 and a water collecting and conveying mechanism 7 arranged in the dustproof room 1. The side hole flushing mechanism 2 is respectively arranged at the hole positions on both sides of the bridge housing 8, and is used to flush the through holes 8.1 at both ends of the bridge housing 8. The inner cavity cleaning mechanism 3 is arranged below the inner cavity of the bridge housing 8, and is used to flush the inner cavity 8.2 of the bridge housing 8. The water chip collecting and removing component 5 is located below the bridge housing 8, and is used to receive the iron filings and dripping water dropped when the bridge housing 8 is flushed. The chip conveyor 4 is arranged in the water receiving and chip conveying part 5, and is used for conveying iron chips and water. The chain plate filtering and separating chip conveyor 6 is located below the water receiving and chip conveying part 5 and is connected to the water receiving and chip conveying part 5, and is used for separating iron chips and water and filtering the separated water. The water collecting and conveying mechanism 7 is arranged on one side of the chain plate filtering and separating chip conveyor 6 and is connected to the chain plate filtering and separating chip conveyor 6. The water collecting and conveying mechanism 7 is respectively connected to the side hole flushing mechanism 2 and the inner cavity cleaning mechanism 3. The filtered water flows into the water collecting and conveying mechanism 7, and the water collecting and conveying mechanism 7 re-conveys the water to the side hole flushing mechanism 2 and the inner cavity cleaning mechanism 3 to continue flushing the bridge housing 8.

[0027] A protection room 9 is arranged in the dustproof room 1. The protection room 9 is arranged on the base 1.1 of the dustproof room 1. The bridge housing 8, the side hole flushing mechanism 2, the inner cavity cleaning mechanism 3, the spiral chip conveyor 4 and the water receiving and chip removal component 5 are arranged in the protection room 9. The protection room 9 includes a water retaining plate 9.1 located on both sides of the bridge housing 8 and a water retaining sliding door 9.2 located on the rear side of the bridge housing 8. The water retaining sliding door 9.2 opens or closes the protection room 9 when sliding; the water retaining plate 9.1 and the water retaining sliding door 9.2 can prevent the dust and water generated during grinding and flushing from splashing to other positions of the grinding equipment, thereby polluting the grinding equipment or damaging the electrical components of the grinding equipment. The water retaining sliding door 9.2 can open the protection room 9 to facilitate the inspection and maintenance of the parts in the protection room 9.

[0028] A lifting door 10 that moves up and down is provided on the front side of the protection room 9. The lifting door 10 opens or closes the protection room 9 when it moves. Lifting door connecting plates 11 are provided on both sides of the lifting door 10. The lifting door 10 is set on the lifting door connecting plates 11 for sliding up and down through a guide rail assembly 16. A driving component 12 is provided on the front side of the lifting door 10. The driving component 12 and the lifting door 10 are drivingly connected. The driving component 12 is a driving cylinder for driving the lifting door 10 to move up and down. When the bridge housing 8 is flushed, the lifting door 10 rises to close the protection room 9 to prevent water generated during flushing from splashing onto the robot 15.

[0029] The side hole flushing mechanism 2 includes a water inlet 2.1, a confluence block 2.2 and a fixing frame 2.3. A turning frame 13 for fixing the bridge shell 8 is arranged in the protection room 9. The fixing frame 2.3 is arranged on the turning frame 13. The water inlet 2.1 is fixed on the fixing frame 2.3. A water inlet 2.4 is arranged at one end of the water inlet 2.1. The water inlet 2.4 is connected to the water collecting and conveying mechanism 7. The other end of the water inlet 2.1 is connected to the confluence block 2.2. A water outlet 2.5 is arranged at the end of the confluence block 2.2. The water outlet 2.5 is inserted into the holes on both sides of the bridge shell 8. When the through holes 8.1 at both ends of the bridge shell 8 are flushed, the water in the water collecting and conveying mechanism 7 flows into the water inlet 2.1 through the water inlet 2.4. After the water is collected by the confluence block 2.2, it is sprayed into the through hole 8.1 of the bridge shell 8 through the water outlet 2.5.

[0030] The inner cavity cleaning mechanism 3 includes a lifting platform 3.1 and a conduit 3.2. The conduit 3.2 is arranged on the top of the lifting platform 3.1. A plurality of nozzles 3.3 are arranged on the top of the conduit 3.2. A water inlet joint 3.4 is arranged on the side of the conduit 3.2. The water inlet joint 3.4 is connected to the water collecting and conveying mechanism 7. The lifting platform 3.1 can drive the conduit 3.2 to rise and fall to prevent the conduit 3.2 from interfering with the bridge housing 8 when the bridge housing 8 is turned over. When the inner cavity 8.2 of the bridge housing 8 is flushed, the water in the water collecting and conveying mechanism 7 flows into the conduit 3.2 through the water inlet joint 3.4. After the water is collected by the conduit 3.2, it is sprayed into the inner cavity 8.2 of the bridge housing 8 through the nozzle 3.3.

[0031] The water receiving and chip removing component 5 comprises a water receiving tray 5.1 and a chip removing groove 5.2. An opening is arranged in the center of the water receiving tray 5.1, and the chip removing groove 5.2 is arranged at the bottom of the opening. The water receiving tray 5.1 and the chip removing groove 5.2 are in the shape of a funnel. The water receiving tray 5.1 is in the shape of a funnel. After the water and iron chips generated when the bridge housing 8 is flushed fall into the water receiving tray 5.1, they will flow into the chip removing groove 5.2 along the bottom wall of the water receiving tray 5.1. The chip removing groove 5.2 is also in the shape of a funnel, and the spiral chip conveyor 4 is located at the very bottom of the chip removing groove 5.2. After the water and iron chips flow into the chip removing groove 5.2, they will flow into the spiral chip conveyor 4 along the bottom wall of the chip removing groove 5.2, thereby effectively discharging the water and iron chips through the spiral chip conveyor 4 to the chain plate filtering and separating chip conveyor 6.

[0032] The spiral chip conveyor 4 is arranged in the water receiving tray 5.1, and includes a driving motor 4.1 and a screw 4.2. The driving motor 4.1 is connected to the screw 4.2 through a coupling 4.3. A groove 5.4 is arranged at the bottom of the chip conveyor groove 5.2, and the screw 4.2 is arranged in the groove 5.4. When the bridge housing 8 is flushed, the driving motor 4.1 drives the screw 4.2 to rotate, and when the screw 4.2 rotates, the water and iron chips flowing into the groove 5.4 are discharged to the chain plate filtering and separating chip conveyor 6.

[0033] A water receiving chip removal groove 6.1 is provided on the other side of the chain plate filtering and separating chip conveyor 6, and a chip removal opening 5.3 is provided at one end of the chip removal groove 5.2, and the chip removal opening 5.3 is connected to the water receiving chip removal groove 6.1, and the water receiving chip removal groove 6.1 is located below the chip removal opening 5.3; when the bridge housing 8 is flushed, the water and iron chips in the chip removal groove 5.2 flow into the groove 5.4, and then the screw 4.2 discharges the water and iron chips to the chip removal opening 5.3, and the water and iron chips flow into the water receiving chip removal groove 6.1 through the chip removal opening 5.3, and then flow into the chain plate filtering and separating chip conveyor 6 through the water receiving chip removal groove 6.1 for filtering and separation.

[0034] The water collecting and conveying mechanism 7 includes a water collecting box 7.1 and a water pump 7.2. The water collecting box 7.1 is arranged on one side of the chain plate filtering and separating chip conveyor 6, and its interior is connected to the chain plate filtering and separating chip conveyor 6. The water pump 7.2 is arranged on the water collecting box 7.1 and is connected to the interior of the water collecting box 7.1. The water pump 7.2 is connected to the water inlet 2.4 and the water inlet joint 3.4 respectively through a PVC water pipe (not shown in the figure); after the water and iron chips are filtered and separated, the filtered water flows into the water collecting box 7.1, and the filtered water in the water collecting box 7.1 is pumped to the side hole flushing mechanism 2 and the inner cavity cleaning mechanism 3 by the water pump 7.2 to continue to clean the bridge housing 8, so that the water is recycled and resources are saved; the water collecting box 7.1 is used to store water for flushing the bridge housing 8. When the bridge housing 8 is flushed, the water pump 7.2 pumps the water in the water collecting box 7.1 to the side hole flushing mechanism 2 and the inner cavity cleaning mechanism 3 respectively.

[0035] Positioners 14 are arranged on both sides of the protection room 9, and the positioners 14 are connected to the ends of the turning frame 13. Specifically, a motor is arranged in the positioner 14, and the output shaft of the motor is connected to the ends of the turning frame 13. When the motor is running, the turning frame 13 is driven to rotate. When the bridge shell grinding equipment is grinding or cleaning the bridge shell 8, the positioner 14 turns the bridge shell 8 through the turning frame 13; a robot 15 for grinding the bridge shell 8 is arranged in front of the protection room 9, and the robot 15 is located on one side of the lifting door 10.

[0036] Working principle of the flushing system of the bridge housing grinding equipment:

[0037] The water pump 7.2 pumps the water in the water collecting tank 7.1 to the side hole flushing mechanism 2 and the inner cavity cleaning mechanism 3 respectively, and the side hole flushing mechanism 2 sprays water into the through holes 8.1 at both ends of the bridge housing 8 to flush the through holes 8.1 and wash away the iron filings in the through holes 8.1. The inner cavity cleaning mechanism 3 sprays water into the inner cavity 8.2 of the bridge housing 8 (the bridge housing 8 needs to be turned over so that the opening of the inner cavity 8.2 faces the nozzle 3.3) to flush the inner cavity 8.2 and wash away the iron filings in the inner cavity 8.2. During flushing, the water and iron filings will fall into the water receiving tray 5 .1, and then flow into the chip discharge groove 5.2 along the bottom wall of the water receiving tray 5.1, the screw 4.2 in the chip discharge groove 5.2 rotates to discharge the water and iron chips to the water receiving chip discharge groove 6.1, and then the water and iron chips flow into the chain plate filter separation chip conveyor 6 through the water receiving chip discharge groove 6.1, and the chain plate filter separation chip conveyor 6 filters and separates the water and iron chips, and the filtered water flows back into the water collecting tank 7.1, and then is pumped to the side hole flushing mechanism 2 and the inner cavity cleaning mechanism 3 by the water pump 7.2 to continue flushing the bridge housing 8, and the cycle is repeated.

[0038] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flushing system for a bridge housing polishing device, the bridge housing polishing device comprising a dustproof room (1), characterized in that: The flushing system comprises a side hole flushing mechanism (2), an inner cavity cleaning mechanism (3), a spiral chip conveyor (4), a water receiving and chip conveying part (5), a chain plate filter separation chip conveyor (6) and a water collecting and conveying mechanism (7) arranged in a dustproof room (1); the side hole flushing mechanism (2) is respectively arranged at the hole positions on both sides of the bridge housing (8); the inner cavity cleaning mechanism (3) is arranged below the inner cavity of the bridge housing (8); the water receiving and chip conveying part (5) is located below the bridge housing (8); the spiral chip conveyor (4) is arranged in the water receiving and chip conveying part (5); the chain plate filter separation chip conveyor (6) is located below the water receiving and chip conveying part (5) and is connected to the water receiving and chip conveying part (5); the water collecting and conveying mechanism (7) is arranged on one side of the chain plate filter separation chip conveyor (6) and is connected to the chain plate filter separation chip conveyor (6); and the water collecting and conveying mechanism (7) is respectively connected to the side hole flushing mechanism (2) and the inner cavity cleaning mechanism (3); The side hole flushing mechanism (2) comprises a water inlet (2.1), a manifold (2.2) and a fixing frame (2.3); a flip frame (13) for fixing the bridge housing (8) is arranged in the protection room (9); the fixing frame (2.3) is arranged on the flip frame (13); the water inlet (2.1) is fixed on the fixing frame (2.3); a water inlet (2.4) is arranged at one end of the water inlet (2.1); the water inlet (2.4) is connected to the water collection and delivery mechanism (7); the other end of the water inlet (2.1) is connected to the manifold (2.2); a water outlet (2.5) is arranged at the end of the manifold (2.2); the water outlet (2.5) is inserted into the holes on both sides of the bridge housing (8); The inner cavity cleaning mechanism (3) comprises a lifting platform (3.1) and a confluence piece (3.2), wherein the confluence piece (3.2) is arranged on the top of the lifting platform (3.1), a plurality of nozzles (3.3) are arranged on the top of the confluence piece (3.2), a water inlet joint (3.4) is arranged on the side of the confluence piece (3.2), and the water inlet joint (3.4) is connected to a water collection and delivery mechanism (7); The water receiving and chip removal member (5) comprises a water receiving tray (5.1) and a chip removal groove (5.2); an opening is provided at the center of the water receiving tray (5.1); the chip removal groove (5.2) is arranged at the bottom of the opening; the water receiving tray (5.1) and the chip removal groove (5.2) are in the shape of a funnel; and the spiral chip removal machine (4) is located at the bottom of the chip removal groove (5.2); The spiral chip conveyor (4) is arranged in the water receiving tray (5.1), and comprises a driving motor (4.1) and a screw (4.2); the driving motor (4.1) is connected to the screw (4.2) through a coupling (4.3); a groove (5.4) is arranged at the bottom of the chip conveyor groove (5.2), and the screw (4.2) is arranged in the groove (5.4); A water receiving chip removal groove (6.1) is provided on the other side of the chain plate filtering and separating chip removal machine (6), a chip removal opening (5.3) is provided at one end of the chip removal groove (5.2), the chip removal opening (5.3) is butt-jointed with the water receiving chip removal groove (6.1), and the water receiving chip removal groove (6.1) is located below the chip removal opening (5.3); The water collecting and conveying mechanism (7) comprises a water collecting box (7.1) and a water pump (7.2). The water collecting box (7.1) is arranged on one side of the chain plate filtering and separating chip conveyor (6), and its interior is communicated with the chain plate filtering and separating chip conveyor (6). The water pump (7.2) is arranged on the water collecting box (7.1) and is communicated with the interior of the water collecting box (7.1). The water pump (7.2) is respectively connected to the water inlet (2.4) and the water inlet joint (3.4) through water pipes.

2. The flushing system of the bridge housing grinding equipment according to claim 1, characterized in that: A protection room (9) is arranged in the dustproof room (1), and a bridge housing (8), a side hole flushing mechanism (2), an inner cavity cleaning mechanism (3), a spiral chip conveyor (4) and a water receiving and chip conveying member (5) are arranged in the protection room (9). The protection room (9) includes water retaining plates (9.1) located on both sides of the bridge housing (8) and a water retaining sliding door (9.2) located on the rear side of the bridge housing (8). When the water retaining sliding door (9.2) slides, the protection room (9) is opened or closed.

3. The flushing system of the bridge housing grinding equipment according to claim 2, characterized in that: A lifting door (10) that moves up and down is arranged at the front side of the protection room (9). When the lifting door (10) moves, the protection room (9) is opened or closed. Lifting door connecting plates (11) are arranged on both sides of the lifting door (10). The lifting door (10) is arranged on the lifting door connecting plates (11) to slide up and down through a guide rail assembly (16). A driving component (12) is arranged at the front side of the lifting door (10). The driving component (12) and the lifting door (10) are drivingly connected.

4. The flushing system of the bridge housing grinding equipment according to claim 1, characterized in that: Positioners (14) are arranged on both sides of the protection room (9), the positioners (14) are connected to the ends of the turning frame (13), a motor is arranged inside the positioner (14), the output shaft of the motor is connected to the ends of the turning frame (13), when the bridge housing grinding equipment grinds or cleans the bridge housing (8), the positioner (14) turns the bridge housing (8) through the turning frame (13); a robot (15) for grinding the bridge housing (8) is arranged in front of the protection room (9), and the robot (15) is located on one side of the lifting door (10).

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