Surface treatment equipment for ferrous metal casting

Abstract

The utility model relates to the technical field of metal surface treatment, and discloses surface treatment equipment for ferrous metal casting, which comprises a bottom plate, four groups of mounting holes are arranged on the periphery of the bottom plate close to the edge, four groups of supporting columns are fixedly arranged at the upper end of the bottom plate, and a platform is fixedly arranged at the upper ends of the four groups of supporting columns. A positioning assembly is arranged on the platform, a black metal part is arranged on the upper side of the positioning assembly, a grinding assembly is arranged at the position, close to one side, of the upper end of the platform, and the positioning assembly comprises a cylinder fixedly arranged in the center of the platform. According to the surface treatment equipment for ferrous metal casting, the positioning assembly and the polishing assembly are used, an exhaust fan is used for exhausting air from an exhaust pipe and an air pipe to position a ferrous metal piece, and the first motor is used in a matched mode, so that the ferrous metal piece is automatically driven, and the shielded position is polished; and the automation effect and practicability are improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to a surface treatment device for ferrous metal casting. Background Technology

[0002] In the field of ferrous metal casting, surface treatment is a crucial step that directly affects the quality and performance of ferrous metal products. With the development of modern industry, the requirements for the surface quality of ferrous metal casting products are becoming increasingly stringent, and traditional surface treatment equipment and processes are no longer sufficient to meet current production demands.

[0003] There are several problems in the traditional surface treatment process for ferrous metal casting. First, in terms of workpiece positioning, traditional equipment often lacks precise and stable positioning methods. Ferrous metal parts are prone to displacement during processing, which leads to unevenness in subsequent grinding and polishing, severely affecting the surface flatness and precision of the product. Moreover, the positioning process is cumbersome, requiring a significant amount of manpower and time to adjust the workpiece position, thus reducing production efficiency.

[0004] Secondly, dust control during the processing has always been a challenge. Surface treatment of ferrous metal castings, such as grinding, generates a large amount of dust. Traditional equipment either lacks effective dust collection devices or has low collection efficiency, resulting in dust permeating the working environment. This not only harms the health of operators, causing respiratory diseases, but may also affect the normal operation of the equipment, as dust may enter the mechanical parts, accelerating wear and reducing the equipment's lifespan.

[0005] Furthermore, traditional equipment also has shortcomings in driving the rotation function of ferrous metal parts. When all-around processing of the workpiece is required, the rotation is not flexible and stable enough, making it impossible to ensure that each surface is treated uniformly. This may result in some surfaces being over-treated while others are under-treated, affecting the overall quality of the product.

[0006] Furthermore, in terms of grinding components, traditional grinding equipment typically suffers from low grinding precision and poor adaptability. It cannot flexibly adjust the grinding angle and force for ferrous metal parts of different shapes and sizes. Moreover, during the grinding process, the pressure control of the grinding wheel is not precise enough, easily damaging the workpiece surface and affecting the product's appearance and quality.

[0007] Against this backdrop, the development of a new type of surface treatment equipment for ferrous metal casting is urgently needed. This equipment requires precise and stable positioning components to firmly secure ferrous metal parts while facilitating operation. It also needs an efficient dust control system to ensure a clean working environment and operator safety. Furthermore, a flexible and stable drive assembly must be designed to allow the ferrous metal parts to rotate as needed. Simultaneously, the grinding assembly must enable high-precision, adjustable grinding operations to adapt to different workpiece requirements, improve the quality and efficiency of ferrous metal casting surface treatment, and meet the high standards of modern industrial production. Through analysis and research of existing technologies, we have found a lack of ideal equipment on the market that can comprehensively solve the above problems; therefore, we are committed to developing the equipment involved in this patent. Utility Model Content

[0008] The main objective of this invention is to provide a surface treatment device for ferrous metal casting, which can effectively solve the problems in the background art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A surface treatment device for ferrous metal casting includes a base plate with four sets of mounting holes near its edges. Four sets of support columns are fixedly mounted on the upper end of the base plate, and a platform is fixedly mounted on the upper end of each support column. A positioning assembly is mounted on the platform, and a ferrous metal part is mounted on the upper side of the positioning assembly. A grinding assembly is located near one side of the upper end of the platform. The positioning assembly includes a cylinder fixedly mounted at the center of the platform, a cylinder cover movably connected to the lower side of the cylinder, and a suction cup fixedly mounted on the upper end of the cylinder. The sleeve includes a drive assembly on the inner side of the cylinder, an exhaust fan fixedly mounted on the upper end of the platform near the rear, an exhaust pipe fixedly mounted on the lower side of the exhaust fan, a dust filter screen mounted inside the exhaust pipe near the front, an air pipe connection pipe fixedly mounted on one side of the exhaust pipe, an exhaust pipe fixedly mounted on the lower side of the exhaust fan near the exhaust pipe, and a dust collection plate fixedly mounted on the outer side of the cylinder near the suction cup sleeve. The upper side of the dust collection plate has several sets of dust collection holes, and the lower end of the dust collection plate has several sets of dust guide pipes.

[0011] Preferably, the driving assembly includes a first piston block movably disposed inside the cylinder, a motor fixedly disposed at the upper end of the first piston block, a large gear fixedly disposed outside the rotating shaft of the motor, support plates fixedly disposed at the upper end of the first piston block near both side edges, a round rod movably disposed inside the upper side of the two sets of support plates, a drive wheel fixedly disposed near the middle of the outer side of the round rod, a small gear fixedly disposed near the upper part of the outer side of the drive wheel near the upper part of the large gear, a fixing ring fixedly disposed on the lower inner wall of the cylinder, and a first spring fixedly disposed between the first piston block and the fixing ring.

[0012] Preferably, the grinding assembly includes a fixed plate fixedly mounted on the upper part of the platform near one side. A first motor is fixedly mounted on one upper end of the fixed plate. A movable frame is fixedly mounted on the outer side of the rotating shaft of the first motor. A second motor is fixedly mounted on the upper side of one side of the movable frame. A square rod is fixedly mounted on the lower end of the rotating shaft of the second motor. A round tube shell is fixedly mounted on the lower side of one side of the movable frame near the outer side of the square rod. A first movable plug is movably mounted inside the upper side of the round tube shell. A connecting rod is sleeved on the outer side of the square rod. A square groove is provided on the inner side of the connecting rod. Two sets of limiting rings are fixedly mounted on the outer side of the connecting rod near the upper position. A grinding wheel is fixedly connected to the lower part of the connecting rod. A second spring is fixedly mounted on the lower end of the first movable plug. An air inlet is opened on the upper side of one side of the round tube shell.

[0013] Preferably, the black metal part is placed inside the suction cup sleeve, the cylinder cover is threaded to the cylinder, the suction pipe is fixedly connected to the cylinder and communicates with the inside of the cylinder, and the upper end of the air pipe connecting pipe is fixedly connected to the round tube shell and communicates with the inside of the round tube shell.

[0014] Preferably, the dust collection disc is hollow in an inverted cone shape, with several sets of dust collection holes evenly arranged in a ring, and the lower ends of several sets of dust guide tubes are fixedly connected to the cylinder, with the dust guide tubes communicating with the dust collection holes and the inside of the cylinder.

[0015] Preferably, the first piston block and the cylinder are sealed together, the large gear and the small gear are meshed together, the drive wheel is attached to the lower end of the ferrous metal part, and the drive wheel is made of rubber.

[0016] Preferably, the rotation shaft of the first motor corresponds to the center of the black metal part placed in the suction cup sleeve. The rotation shaft of the first motor movably passes through the interior of the fixed plate and is connected to the movable frame. The rotation shaft of the second motor movably passes through the interior of the movable frame and is connected to the square rod. The square rod is adapted to the square groove.

[0017] Preferably, the first movable plug is fitted between the two sets of limiting rings on the outside of the connecting rod, the first movable plug is sealed and fitted with the round tube shell, the connecting rod moves through the bottom of the round tube shell, and the inner side of the grinding wheel is adapted to the surface of the ferrous metal part.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Place the black metal part to be polished inside the suction cup sleeve. Turn on the exhaust fan, and the exhaust pipe and air pipe connecting pipe will draw air from the inside of the cylinder and the cylindrical shell. When air is drawn from the inside of the cylinder, the first piston block moves downward in the cylinder to compress the first spring. At the same time, under the action of atmospheric pressure, the black metal part is tightly attached to the suction cup sleeve for fixation, which stabilizes it during polishing. Meanwhile, the air pipe connecting pipe draws air from the cylindrical shell. Similarly, after the air inside the cylindrical shell is reduced, under the action of atmospheric pressure, the first movable plug moves downward, thereby driving the polishing wheel to fit well against the upper side of the black metal part for pre-polishing preparation. Several sets of dust guide pipes connected to the cylinder draw air from the inside of the dust collection disc. Several sets of dust collection holes on the dust collection disc absorb the dust during the polishing process and put it into the lower inside of the cylinder. After the work is finished, the bottom of the cylinder can be opened for cleaning by unscrewing the cylinder cap.

[0020] 2. When the first movable stopper moves downward, it will compress the second spring. After the work is completed, the second spring will automatically lift the first movable stopper and the grinding wheel to facilitate the removal of the ferrous metal parts. When positioning the ferrous metal parts, the second motor can be started to drive the connecting rod and the grinding wheel to grind the upper surface of the ferrous metal parts. The first motor can also be started to drive the movable frame to rotate back and forth and swing back and forth, thereby driving the grinding wheel to swing and grind the surface while grinding, thus increasing the surface area of ​​the grinding wheel when grinding the ferrous metal parts.

[0021] 3. After the grinding assembly smooths the surface of the ferrous metal part by reciprocating oscillation, the exhaust fan is stopped. The compressed first spring lifts the first piston block, causing the drive wheel to engage with the lower end of the ferrous metal part. The motor is then started, driving the large gear to rotate. The large gear drives the meshing small gear and the round bar fixed to the small gear to rotate. The drive wheel then drives the ferrous metal part to rotate to the left or right for a partial positional change. The exhaust fan is then started again to fix and grind the ferrous metal part. By using the exhaust fan and motor in conjunction, the position of the ferrous metal part can be adjusted, achieving automatic driving of the ferrous metal part and grinding of obstructed areas, thus improving automation and practicality. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the positioning component structure of this utility model;

[0024] Figure 3 This is a partial structural diagram of the positioning component of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the positioning component of this utility model;

[0026] Figure 5 For the present utility model Figure 4 Enlarged structural diagram of Part A;

[0027] Figure 6 This is a schematic diagram of the grinding component structure of this utility model;

[0028] Figure 7 For the present utility model Figure 6 Enlarged structural diagram of Part B;

[0029] Figure 8 This is a partial unfolded structural diagram of the grinding component of this utility model.

[0030] In the diagram: 1. Base plate; 2. Mounting hole; 3. Support column; 4. Platform; 5. Positioning assembly; 51. Cylinder; 52. Cylinder cover; 53. Suction cup sleeve; 54. Drive assembly; 541. First piston block; 542. Motor; 543. Large gear; 544. Support plate; 545. Round bar; 546. Drive wheel; 547. Small gear; 548. Fixing ring; 549. First spring; 55. Exhaust fan; 56. Exhaust pipe; 57. Dust filter. 58. Connecting pipe; 59. Exhaust pipe; 510. Dust collection tray; 511. Dust collection hole; 512. Dust guide pipe; 6. Ferrous metal parts; 7. Grinding assembly; 71. Fixing plate; 72. First motor; 73. Movable frame; 74. Second motor; 75. Square rod; 76. Round tube shell; 77. First movable plug; 78. Connecting rod; 79. Square groove; 710. Limiting ring; 711. Grinding wheel; 712. Second spring; 713. Air inlet. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship as a relative relationship of orientation or position, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Please see Figure 1-8 This utility model provides an embodiment of a surface treatment device for ferrous metal casting, comprising a base plate 1, four sets of mounting holes 2 near the edges of the base plate 1, four sets of support columns 3 fixedly mounted on the upper end of the base plate 1, a platform 4 fixedly mounted on the upper end of the four sets of support columns 3, a positioning component 5 mounted on the platform 4, a ferrous metal part 6 mounted on the upper side of the positioning component 5, and a grinding component 7 mounted on one side of the upper end of the platform 4. The positioning component 5 includes a cylinder 51 fixedly mounted at the center of the platform 4, a cylinder cover 52 movably connected to the lower side of the cylinder 51, and a suction cup sleeve 53 fixedly mounted on the upper end of the cylinder 51. A drive assembly 54 is provided inside the cylinder 51. An exhaust fan 55 is fixedly installed at the upper end of the platform 4 near the rear. An exhaust pipe 56 is fixedly installed below the exhaust fan 55. A dust filter screen 57 is provided inside the exhaust pipe 56 near the front. An air pipe connecting pipe 58 is fixedly installed on one side of the exhaust pipe 56. An exhaust pipe 59 is fixedly installed below the exhaust fan 55 near the exhaust pipe 56. A dust collection disc 510 is fixedly installed on the outer side of the cylinder 51 near the suction cup sleeve 53. Several sets of dust collection holes 511 are opened inside the upper side of the dust collection disc 510. Several sets of dust guide pipes 512 are fixedly installed at the lower end of the dust collection disc 510.

[0034] The black metal part 6 is placed inside the suction cup sleeve 53. The cylinder cover 52 is threaded to the cylinder 51. The suction pipe 56 is fixedly connected to the cylinder 51 and communicates with the inside of the cylinder 51. The upper end of the air pipe connecting pipe 58 is fixedly connected to the cylindrical shell 76 and communicates with the inside of the cylindrical shell 76. The dust collection plate 510 is hollow in an inverted cone shape. Several sets of dust collection holes 511 are evenly arranged in a ring. The lower ends of several sets of dust guide pipes 512 are fixedly connected to the cylinder 51 and communicate with the dust collection holes 511 and the inside of the cylinder 51.

[0035] The black metal part 6, whose surface needs to be polished, is placed inside the suction cup sleeve 53. By activating the exhaust fan 55, air is drawn from the cylinder 51 and the cylindrical shell 76 via the exhaust pipe 56 and the air pipe connecting pipe 58, respectively. When air is drawn from the cylinder 51, the first piston block 541 moves downwards within the cylinder 51, compressing the first spring 549. Simultaneously, under atmospheric pressure, the black metal part 6 is tightly adhered to the suction cup sleeve 53 for fixation, ensuring stability during polishing. At the same time, air is drawn from the cylindrical shell 76 via the air pipe connecting pipe 58. Similarly, air is drawn from the cylindrical shell 76... After the gas inside the tube shell 76 decreases, the first movable plug 77 moves downward under atmospheric pressure, thereby driving the grinding wheel 711 to fit well against the upper side of the black metal part 6 for pre-grinding preparation. The dust is drawn from the inside of the dust collection disc 510 by several sets of dust guide pipes 512 connected to the cylinder 51, and the dust is absorbed by several sets of dust collection holes 511 on the dust collection disc 510 and enters the lower inner part of the cylinder 51. After the work is completed, the bottom of the cylinder 51 can be opened for cleaning by unscrewing the cylinder cover 52.

[0036] The drive assembly 54 includes a first piston block 541 movably disposed inside the cylinder 51. A motor 542 is fixedly disposed at the upper end of the first piston block 541. A large gear 543 is fixedly disposed outside the rotating shaft of the motor 542. Support plates 544 are fixedly disposed at the upper end of the first piston block 541 near both side edges. A round rod 545 is movably disposed inside the upper side of the two sets of support plates 544. A drive wheel 546 is fixedly disposed near the middle of the outer side of the round rod 545. A small gear 547 is fixedly disposed near the upper side of the drive wheel 546 near the upper part of the large gear 543. A retaining ring 548 is fixedly disposed on the lower inner wall of the cylinder 51. A first spring 549 is fixedly disposed between the first piston block 541 and the retaining ring 548.

[0037] The first piston block 541 and the cylinder 51 are sealed together. The large gear 543 and the small gear 547 are meshed together. The drive wheel 546 is attached to the lower end of the black metal part 6. The drive wheel 546 is made of rubber.

[0038] After the grinding assembly 7 smooths the surface of the black metal part 6 by reciprocating oscillation, the first spring 549, compressed by stopping the exhaust fan 55, lifts the first piston block 541, causing the drive wheel 546 to engage with the lower end of the black metal part 6. The motor 542 is then started, driving the large gear 543 to rotate. The large gear 543 drives the meshing small gear 547 and the round bar 545 fixed to the small gear 547 to rotate. The drive wheel 546 then drives the black metal part 6 to rotate to the left or right for a partial positional rotation. The exhaust fan 55 is then started again to fix and grind the black metal part 6. Through the combined use of the exhaust fan 55 and the motor 542, the position of the black metal part 6 can be adjusted, realizing automatic driving of the black metal part 6 to grind the obstructed areas, improving automation and practicality.

[0039] The grinding assembly 7 includes a fixed plate 71 fixedly mounted on the upper end of the platform 4 near one side. A first motor 72 is fixedly mounted on one upper end of the fixed plate 71. A movable frame 73 is fixedly mounted on the outer side of the rotating shaft of the first motor 72. A second motor 74 is fixedly mounted on the upper side of one side of the movable frame 73. A square rod 75 is fixedly mounted on the lower end of the rotating shaft of the second motor 74. A round tube shell 76 is fixedly mounted on the lower side of one side of the movable frame 73 near the outer side of the square rod 75. A first movable plug 77 is movably mounted inside the upper side of the round tube shell 76. A connecting rod 78 is sleeved on the outer side of the square rod 75. A square groove 79 is provided on the inner side of the connecting rod 78. Two sets of limiting rings 710 are fixedly mounted on the outer side of the connecting rod 78 near the upper position. A grinding wheel 711 is fixedly connected to the lower part of the connecting rod 78. A second spring 712 is fixedly mounted on the lower end of the first movable plug 77. An air inlet 713 is opened on the upper side of one side of the round tube shell 76.

[0040] The rotating shaft of the first motor 72 corresponds to the center of the black metal part 6 placed in the suction cup sleeve 53. The rotating shaft of the first motor 72 moves through the inside of the fixed plate 71 and is connected to the movable frame 73. The rotating shaft of the second motor 74 moves through the inside of the movable frame 73 and is connected to the square rod 75. The square rod 75 is adapted to the square groove 79. The first movable plug 77 is fitted between the two sets of limiting rings 710 on the outside of the connecting rod 78. The first movable plug 77 is sealed and fitted to the round tube shell 76. The connecting rod 78 moves through the bottom of the round tube shell 76. The inner side of the grinding wheel 711 is adapted to the surface of the black metal part 6.

[0041] When the first movable stopper 77 moves downward, it compresses the second spring 712. After the work is completed, the second spring 712 will automatically lift the first movable stopper 77 and the grinding wheel 711 to facilitate the removal of the black metal part 6. When positioning the black metal part 6, the second motor 74 can be started to drive the connecting rod 78 and the grinding wheel 711 to grind the upper surface of the black metal part 6. The first motor 72 can be started to drive the movable frame 73 to rotate back and forth and swing back and forth, thereby driving the grinding wheel 711 to swing and grind the surface while grinding, thereby increasing the surface area of ​​the grinding wheel 711 when grinding the black metal part 6.

[0042] Working principle:

[0043] When using this surface treatment equipment for ferrous metal casting, the ferrous metal part 6 to be polished is placed inside the suction cup sleeve 53. By activating the exhaust fan 55, air is drawn from the cylinder 51 and the cylindrical shell 76 via the exhaust pipe 56 and the air pipe connecting pipe 58, respectively. During the exhaust from the cylinder 51, the first piston block 541 moves downwards within the cylinder 51, compressing the first spring 549. Simultaneously, under atmospheric pressure, the ferrous metal part 6 is tightly adhered to the suction cup sleeve 53 for fixation, ensuring stability during polishing. At the same time, gas is extracted from the cylindrical shell 76 through the air pipe connecting pipe 58. Similarly, after the gas inside the cylindrical shell 76 is reduced, the air is drawn from the cylinder 76. Under air pressure, the first movable stopper 77 moves downward, causing the grinding wheel 711 to fit well against the upper side of the black metal part 6 for pre-grinding preparation. Several sets of dust guide pipes 512 connected to the cylinder 51 draw air from the inside of the dust collection disc 510, and several sets of dust collection holes 511 on the dust collection disc 510 absorb the dust during the grinding process, which enters the lower interior of the cylinder 51. After the work is completed, the bottom of the cylinder 51 can be opened for cleaning by unscrewing the cylinder cap 52. Furthermore, when the first movable stopper 77 moves downward, it compresses the second spring 712. After the work is completed, the second spring 712 automatically... The first movable stopper 77 and the grinding wheel 711 are lifted to facilitate the removal of the black metal part 6. When positioning the black metal part 6, the second motor 74 can be started to drive the connecting rod 78 and the grinding wheel 711 to grind the upper surface of the black metal part 6. The first motor 72 can be started to drive the movable frame 73 to rotate back and forth and swing back and forth, thereby driving the grinding wheel 711 to swing and grind the surface while grinding, thus increasing the surface area of ​​the grinding wheel 711 when grinding the black metal part 6. Finally, after the grinding assembly 7 has reciprocated and swung back and forth to grind the surface of the black metal part 6 to a smooth state, the first compression of the first motor 77 is stopped by stopping the exhaust fan 55. Spring 549 lifts the first piston block 541, causing drive wheel 546 to engage with the lower end of black metal part 6. Motor 542 is started, driving large gear 543 to rotate. Large gear 543 drives meshing small gear 547 and round bar 545 fixed to small gear 547 to rotate. Drive wheel 546 then drives black metal part 6 to rotate to the left or right for a partial position. Then, exhaust fan 55 is started to fix and polish black metal part 6. Through the cooperation of exhaust fan 55 and motor 542, the position of black metal part 6 can be adjusted, realizing automatic driving of black metal part 6 to polish the obstructed position, improving automation effect and practicality.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for ferrous metal casting, comprising a base plate (1), characterized in that: The base plate (1) has four sets of mounting holes (2) near its edges. Four sets of support columns (3) are fixedly installed on the upper end of the base plate (1). A platform (4) is fixedly installed on the upper end of the four sets of support columns (3). A positioning component (5) is installed on the platform (4). A black metal part (6) is installed on the upper side of the positioning component (5). A grinding component (7) is installed on the upper end of the platform (4) near one side. The positioning component (5) includes a cylinder (51) fixedly installed at the center of the platform (4). A cylinder cover (52) is movably connected to the lower side of the cylinder (51). A suction cup sleeve (53) is fixedly installed on the upper end of the cylinder (51). A driving component (5) is installed on the inner side of the cylinder (51). 4) A blower (55) is fixedly installed at the upper end of the platform (4) near the rear side. A suction pipe (56) is fixedly installed at the lower side of the blower (55). A dust filter (57) is installed inside the suction pipe (56) near the front side. An air pipe connection pipe (58) is fixedly installed on one side of the suction pipe (56). An exhaust pipe (59) is fixedly installed at the lower side of the blower (55) near the suction pipe (56). A dust collection plate (510) is fixedly installed on the outer side of the cylinder (51) near the suction cup sleeve (53). Several sets of dust collection holes (511) are opened inside the upper side of the dust collection plate (510). Several sets of dust guide pipes (512) are fixedly installed at the lower end of the dust collection plate (510).

2. The surface treatment equipment for ferrous metal casting according to claim 1, characterized in that: The drive assembly (54) includes a first piston block (541) movably disposed inside the cylinder (51). A motor (542) is fixedly disposed at the upper end of the first piston block (541). A large gear (543) is fixedly disposed outside the rotating shaft of the motor (542). Support plates (544) are fixedly disposed at the upper end of the first piston block (541) near both side edges. A round rod (545) is movably disposed inside the upper side of the two sets of support plates (544). A drive wheel (546) is fixedly disposed near the middle of the outer side of the round rod (545). A small gear (547) is fixedly disposed above the large gear (543) on the outer side of the drive wheel (546). A fixing ring (548) is fixedly disposed on the lower inner wall of the cylinder (51). A first spring (549) is fixedly disposed between the first piston block (541) and the fixing ring (548).

3. The surface treatment equipment for ferrous metal casting according to claim 1, characterized in that: The grinding assembly (7) includes a fixed plate (71) fixedly mounted on the upper end of the platform (4) near one side. A first motor (72) is fixedly mounted on one upper end of the fixed plate (71). A movable frame (73) is fixedly mounted on the outer side of the rotating shaft of the first motor (72). A second motor (74) is fixedly mounted on the upper side of one side of the movable frame (73). A square rod (75) is fixedly mounted on the lower end of the rotating shaft of the second motor (74). A round tube shell (76) is fixedly mounted on the lower side of one side of the movable frame (73) near the outer side of the square rod (75). The upper side of the cylindrical shell (76) is movably provided with a first movable plug (77), the outer side of the square rod (75) is fitted with a connecting rod (78), the inner side of the connecting rod (78) is provided with a square groove (79), the outer side of the connecting rod (78) is fixedly provided with two sets of limiting rings (710) near the upper position, the lower part of the connecting rod (78) is fixedly connected with a grinding wheel (711), the lower end of the first movable plug (77) is fixedly provided with a second spring (712), and an air inlet (713) is opened on the upper side of one side of the cylindrical shell (76).

4. The surface treatment equipment for ferrous metal casting according to claim 1, characterized in that: The black metal part (6) is placed inside the suction cup sleeve (53). The cylinder cover (52) is threaded to the cylinder (51). The suction pipe (56) is fixedly connected to the cylinder (51). The suction pipe (56) communicates with the inside of the cylinder (51). The upper end of the air pipe connecting pipe (58) is fixedly connected to the round tube shell (76). The air pipe connecting pipe (58) communicates with the inside of the round tube shell (76).

5. A surface treatment device for ferrous metal casting according to claim 1, characterized in that: The dust collection disc (510) is hollow in an inverted cone shape. Several sets of dust collection holes (511) are evenly arranged in a ring. The lower ends of several sets of dust guide tubes (512) are fixedly connected to the cylinder (51). The dust guide tubes (512) are connected to the dust collection holes (511) and the inside of the cylinder (51).

6. The surface treatment equipment for ferrous metal casting according to claim 1, characterized in that: The first piston block (541) and the cylinder (51) are sealed together. The large gear (543) and the small gear (547) are meshed together. The drive wheel (546) is attached to the lower end of the black metal part (6). The drive wheel (546) is made of rubber.

7. A surface treatment device for ferrous metal casting according to claim 3, characterized in that: The rotating shaft of the first motor (72) corresponds to the center of the black metal part (6) placed in the suction cup sleeve (53). The rotating shaft of the first motor (72) moves through the inside of the fixed plate (71) and is connected to the movable frame (73). The rotating shaft of the second motor (74) moves through the inside of the movable frame (73) and is connected to the square rod (75). The square rod (75) is adapted to the square groove (79).

8. A surface treatment device for ferrous metal casting according to claim 3, characterized in that: The first movable plug (77) is fitted between two sets of limiting rings (710) on the outside of the connecting rod (78). The first movable plug (77) is sealed and fitted with the round tube shell (76). The connecting rod (78) moves through the bottom of the round tube shell (76). The inner side of the grinding wheel (711) is adapted to the surface of the black metal part (6).

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