A device for polishing the inner wall of a cast part

Abstract

This invention relates to the field of casting grinding technology and discloses a grinding device for the inner wall of castings, including a machine base. Two sets of guide rails are installed on the surface of the machine base, and a movable seat is slidably connected to the surface of the two sets of guide rails. The surface of the machine base is also provided with a placement and clamping platform for placing and clamping pipe fittings. During the grinding process, the placement and clamping platform can place and clamp the pipe fittings. Then, the movable platform on the positioning seat can drive the second cover to move, so that the first cover and the second cover clamp the two ends of the pipe fittings. When the main shaft drives the adjustment grinding component to move and rotate for grinding, it can drive the blowing part in the first cover to blow air. At the same time, the blowing part can drive the suction part in the second cover to suction air through the transmission part. The blowing and suction form a directional airflow, which directly collects the grinding dust into the collection part, reducing the phenomenon of dust emission that harms human health and pollutes the equipment. At the same time, it can effectively clean and collect the dust inside the pipe fittings.

Description

Technical Field

[0001] This invention relates to the field of casting grinding technology, specifically to a device for grinding the inner wall of castings. Background Technology

[0002] Castings are metal parts made through casting processes. They refer to products with specific shapes and properties obtained by pouring molten metal (such as cast iron, cast steel, aluminum alloy, etc.) into a pre-made mold cavity, allowing it to cool and solidify, and then undergoing processes such as sand removal, cleaning, and machining. For pipe fittings formed by casting processes, the inner wall needs to be ground to remove casting defects.

[0003] During the grinding process of existing cast pipe fittings, the metal dust generated during the grinding process can easily escape from the openings at both ends of the pipe fitting. On the one hand, this causes the dust to spread in the work area, increasing the occupational health risk of workers inhaling the dust. On the other hand, the escaped dust will adhere to the surface of surrounding equipment, significantly increasing the workload of subsequent equipment cleaning and maintenance. In addition, a large amount of dust and debris is easily left on the inner wall of the pipe fitting after grinding, requiring additional manual cleaning, which further increases the workload.

[0004] Therefore, we propose a device for grinding the inner wall of castings. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a grinding device for the inner wall of castings. This device solves the problem that metal dust generated during existing grinding processes easily escapes from the openings at both ends of the pipe fittings. On the one hand, this causes dust to spread within the work area, increasing the occupational health risk of workers inhaling dust. On the other hand, the escaped dust adheres to the surface of surrounding equipment, significantly increasing the workload of subsequent equipment cleaning and maintenance. In addition, a large amount of dust and debris easily remains on the inner wall of the pipe fittings after grinding, requiring additional manual cleaning, further increasing the workload.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for the inner wall of a casting, comprising a machine base, two sets of guide rails mounted on the surface of the machine base, a movable seat slidably connected to the surfaces of the two sets of guide rails, a placement and clamping platform for placing and clamping pipe fittings on the surface of the machine base, a main shaft rotatably connected to the inner wall of the movable seat, an adjusting grinding component mounted on the main shaft, a grinding drive unit mounted on the movable seat for controlling the rotation of the main shaft and the adjusting grinding component, a grinding moving part mounted on the surface of the machine base for controlling the movement of the movable seat and the adjusting grinding component along the guide rails, and a dust collection device mounted on the surface of the machine base.

[0007] The dust collection device includes a positioning seat fixed on the machine surface, a movable platform on the positioning seat, and a cover first and a cover second fixedly connected to the surfaces of the positioning seat and the movable platform, located on both sides of the grinding pipe. A blowing part and a suction part are respectively arranged inside the cover first and the cover second, and a transmission part is arranged between the blowing part and the suction part. The main shaft is inserted into the blowing part and drives the blowing part to rotate synchronously. A collection part is inserted into the inner wall of the cover second for collecting grinding dust.

[0008] Preferably, the blowing and suction parts include a blowing shaft and a suction shaft respectively rotatably connected to the inner walls of the first and second housings. One end of the blowing shaft and the suction shaft is fixedly connected to a blower fan and a suction fan respectively. The main shaft is inserted into the inner wall of the blowing shaft. The surfaces of the first and second housings are provided with air inlets and air outlets. Through the above components, during the rotation of the main shaft, the main shaft can drive the blowing shaft and the blower fan to rotate. The blower fan, in conjunction with the air inlet, blows air onto the inner wall of the pipe. At the same time, the transmission part can drive the suction shaft and the suction fan to rotate. The suction fan, in conjunction with the blowing fan, can send the grinding dust inside the pipe into the collection part for collection.

[0009] Preferably, the mobile platform includes two guide blocks fixed on the surface of the positioning seat, a mobile stage is slidably connected to the surface of the guide blocks, a mobile cylinder is installed on the inner wall of the positioning seat, and the output end of the mobile cylinder is fixedly connected to the surface of the mobile stage. Through the above components, the mobile stage can be moved along the guide blocks by the mobile cylinder, thereby moving the second cover. The second cover cooperates with the first cover to clamp the two ends of the pipe.

[0010] Preferably, the transmission unit includes a synchronous shaft rotatably connected to the inner wall of the positioning seat, a synchronous belt installed between the synchronous shaft and the blower shaft, a hollow seat fixedly connected to the surface of the moving table, a synchronous head rotatably connected to the inner wall of the hollow seat, the synchronous shaft being inserted into the inner wall of the synchronous head, and a second synchronous belt installed between the synchronous head and the suction shaft. Through the above components, when the blower shaft drives the blower fan to rotate, the blower shaft, in conjunction with the first synchronous belt, drives the synchronous shaft to rotate, the synchronous shaft drives the synchronous head to rotate, and the synchronous head, in conjunction with the second synchronous belt, drives the suction shaft and the suction fan to rotate, thereby achieving the transmission effect.

[0011] Preferably, the collection unit includes a filter cylinder inserted into the inner wall of the housing. The upper end of the filter cylinder is fixedly connected to a handle. Through the above-mentioned components, the dust blown out by the blower and the dust sucked in by the suction fan are collected in the filter cylinder. The filter cylinder can be easily removed for cleaning through the handle.

[0012] Preferably, the inner wall of the second cover is slidably connected to a baffle plate for sealing the second cover. The lower surface of the baffle plate is rotatably connected to a roller. The surface of the positioning seat is fixedly connected to two auxiliary blocks. Through the above components, when the second cover moves towards the pipe, the roller and the baffle plate, together with the auxiliary blocks, will slowly move downward and lose the blocking effect. When the second cover is reset, the auxiliary blocks squeeze the roller and the baffle plate, and the baffle plate can perform a sealing operation on the second cover.

[0013] Preferably, the adjusting grinding assembly includes two grinding seats slidably connected to the inner wall of the main shaft, with detachable grinding blocks mounted on the two grinding seats. A return spring is fixedly connected to the side of each grinding seat corresponding to the inner wall of the main shaft. A contact wheel is rotatably connected to the inner wall of the grinding seat. A push rod is slidably connected to the inner wall of the main shaft. A pressing head is fixedly connected to one end of the push rod. A push cylinder is mounted on the inner wall of the moving seat. A push block is fixedly connected to the output end of the push cylinder. The push rod is rotatably connected to the inner wall of the push block. Through the above components, when the main shaft rotates, it can drive the two grinding seats and the grinding blocks to rotate for grinding operations. During adjustment, the push cylinder drives the push block to move, and the push block drives the push rod and the pressing head to move. The pressing head, in conjunction with the contact wheel, can push the two grinding seats to move in the radial direction of the main shaft to adjust the position of the grinding blocks. The return spring can stably drive the grinding seats and grinding blocks to return to their original positions.

[0014] Preferably, the grinding drive unit includes a drive motor mounted on the surface of the movable seat. The output end of the drive motor and the surface of the main shaft are respectively fixedly connected to sprocket one and sprocket two. A chain is installed between sprocket one and sprocket two. When in use, the drive motor is turned on, and the drive motor can drive sprocket one to rotate. Sprocket one drives sprocket two and the main shaft to rotate through the chain, thereby realizing the drive operation.

[0015] Preferably, the grinding moving part includes an adjusting screw that is rotatably connected to the inner wall of the machine base. The adjusting screw is threadedly connected to the inner wall of the moving seat. A moving motor is also installed on the surface of the machine base. The output end of the moving motor is fixedly connected to one end of the adjusting screw. By turning on the moving motor through the above components, the moving motor can drive the adjusting screw to rotate, and the adjusting screw can drive the moving seat to move linearly along the guide rail.

[0016] Preferably, the placement clamping table includes a fixed base fixed to the surface of the machine table. A clamping cylinder is installed on the surface of the fixed base. A pressure roller is fixedly connected to the output end of the clamping cylinder. Two guide rods that are slidably connected to the inner wall of the fixed base are installed on the pressure roller. Two placement wheels are also installed on the fixed base. With the above components, when placing the pipe, the pipe can be placed on the two placement wheels, and one end of the pipe can be made to fit against the cover. Then, the clamping cylinder drives the pressure roller to move downward to clamp the pipe.

[0017] In summary, the technical effects and advantages of this invention are as follows:

[0018] 1. In this invention, during the grinding process, a clamping table can be placed to hold the pipe fitting. Then, the moving platform on the positioning seat can drive the second cover to move, so that the first cover and the second cover can clamp the two ends of the pipe fitting. When the main shaft drives the adjustment grinding component to move and rotate for grinding, it can drive the blowing part in the first cover to blow air. At the same time, the blowing part can drive the suction part in the second cover to suction air through the transmission part. The blowing and suction form a directional airflow, which directly collects the grinding dust into the collection part, reducing the phenomenon of dust escaping and harming human health and polluting the equipment. At the same time, it can effectively clean and collect the dust in the pipe fitting.

[0019] 2. In this invention, the grinding moving part can drive the moving seat, the main shaft and the adjusting grinding component to move linearly along the guide rail, and the grinding driving part can drive the main shaft and the adjusting grinding component to rotate, which can fully cover the inner wall of the pipe and grind without dead angles, greatly improving grinding efficiency.

[0020] 3. In this invention, the adjusting grinding component moves the grinding seat by pushing the cylinder in conjunction with the push block to control the push rod and the extrusion head. With the reset action of the reset spring, it can not only accurately adjust the fit between the grinding block and the inner wall of the pipe, but also adapt to different grinding needs, and has a wide range of applications.

[0021] 4. In this invention, when the second cover moves closer to the pipe, the baffle plate, in conjunction with the roller and the auxiliary block, moves downward due to its own weight, losing its shielding effect on the second cover. When the second cover returns to its original position and moves away from the pipe, the auxiliary block presses against the roller and the baffle plate, and the baffle plate moves upward to seal the second cover. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a grinding device for the inner wall of a casting according to the present invention;

[0023] Figure 2 This is a side view of a grinding device for the inner wall of a casting according to the present invention.

[0024] Figure 3 This invention relates to a grinding device for the inner wall of castings. Figure 2 Schematic diagram of the structure at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the dust collection device structure of a grinding device for the inner wall of a casting according to the present invention;

[0026] Figure 5 This is a schematic diagram of the guide block structure of a dust collection device for a grinding apparatus for the inner wall of a casting according to the present invention;

[0027] Figure 6 This invention relates to a grinding device for the inner wall of castings. Figure 5 Schematic diagram of the structure at point B;

[0028] Figure 7 This invention relates to a grinding device for the inner wall of castings. Figure 5 Partial cross-sectional structural schematic diagram;

[0029] Figure 8 This is a schematic diagram of the main shaft structure of a grinding device for the inner wall of a casting according to the present invention;

[0030] Figure 9 This is a cross-sectional view of the main shaft portion of a grinding device for the inner wall of a casting according to the present invention.

[0031] In the diagram: 1. Machine base; 2. Placement and clamping table; 21. Fixed seat; 22. Clamping cylinder; 23. Guide rod; 24. Pressure roller; 25. Placement roller; 3. Guide rail; 4. Moving seat; 5. Main spindle; 6. Grinding drive unit; 61. Drive motor; 62. Sprocket 1; 63. Sprocket 2; 64. Chain; 7. Grinding moving part; 71. Moving motor; 72. Adjusting screw; 8. Dust collection device; 81. Positioning seat; 82. Moving table; 83. Guide block; 84. Cover 1; 85. Cover 2; 86. Blower shaft; 87. Synchronous shaft; 88. Blowing fan; 89. Air inlet; 810. Suction shaft; 811. Moving cylinder; 812. Suction fan; 813. Filter cartridge; 814. Handle; 815. Baffle plate; 816. Roller; 817. Auxiliary block; 818. Air outlet; 819. Hollow seat; 820. Synchronous head; 9. Adjusting grinding assembly; 91. Grinding seat; 92. Grinding block; 93. Push rod; 94. Push block; 95. Pushing cylinder; 96. Extrusion head; 97. Return spring; 98. Adhesion wheel; I. Fittings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] refer to Figure 1 - Figure 9The device for grinding the inner wall of a casting includes a machine base 1. Two sets of guide rails 3 are mounted on the surface of the machine base 1. A movable seat 4 is slidably connected to the surface of the two sets of guide rails 3. A placement and clamping platform 2 for placing and clamping a pipe fitting I is also provided on the surface of the machine base 1. A spindle 5 is rotatably connected to the inner wall of the movable seat 4. An adjusting grinding component 9 is provided on the spindle 5. A grinding drive unit 6 is provided on the movable seat 4 for controlling the rotation of the spindle 5 and the adjusting grinding component 9. A grinding moving part 7 is provided on the surface of the machine base 1 for controlling the movement of the movable seat 4 and the adjusting grinding component 9 along the guide rails 3. A dust collection device 8 is also provided on the surface of the machine base 1.

[0034] The dust collection device 8 includes a positioning seat 81 fixed to the surface of the machine base 1. A movable platform is mounted on the positioning seat 81. A first cover 84 and a second cover 85 are fixedly connected to the surfaces of the positioning seat 81 and the movable platform, respectively, located on both sides of the grinding pipe I. A blowing section and a suction section are respectively installed inside the first cover 84 and the second cover 85. A transmission section is provided between the blowing section and the suction section. A main shaft 5 is inserted into the blowing section, driving it to rotate synchronously. A collection section is inserted into the inner wall of the second cover 85 for collecting grinding dust. The blowing section and the suction section include a blowing shaft 86 and a suction shaft 810 respectively rotatably connected to the inner walls of the first cover 84 and the second cover 85. A blower fan 88 and a suction fan 812 are fixedly connected to one end of the blower shaft 86 and the suction shaft 810, respectively. The main shaft 5 is inserted into the inner wall of the blower shaft 86. The first cover 84 and the second cover 85... The surface is provided with an air inlet 89 and an air outlet 818. The moving platform includes two guide blocks 83 fixed on the surface of the positioning seat 81. A moving stage 82 is slidably connected to the surface of the guide blocks 83. A moving cylinder 811 is installed on the inner wall of the positioning seat 81. The output end of the moving cylinder 811 is fixedly connected to the surface of the moving stage 82. The transmission part includes a synchronous shaft 87 rotatably connected to the inner wall of the positioning seat 81. A synchronous belt is installed between the synchronous shaft 87 and the blowing shaft 86. A hollow seat 819 is fixedly connected to the surface of the moving stage 82. A synchronous head 820 is rotatably connected to the inner wall of the hollow seat 819. The synchronous shaft 87 is inserted into the inner wall of the synchronous head 820. A synchronous belt is installed between the synchronous head 820 and the suction shaft 810. The collection part includes a filter cylinder 813 inserted into the inner wall of the second cover 85. A handle 814 is fixedly connected to the upper end of the filter cylinder 813.

[0035] In this implementation scheme: During use, the moving cylinder 811 can drive the moving table 82 to move along the guide block 83, thereby driving the second cover 85 to move. The second cover 85, together with the first cover 84, is clamped on both ends of the pipe I. During the rotation of the main shaft 5, the main shaft 5 can drive the blowing shaft 86 and the blowing fan 88 to rotate. The blowing fan 88, together with the air inlet 89, blows air onto the inner wall of the pipe I. The blowing shaft 86, together with the first synchronous belt, drives the synchronous shaft 87 to rotate. The synchronous shaft 87 drives the synchronous head 820 to rotate. The synchronous head 820, together with the second synchronous belt, drives the suction shaft 810 and the suction fan 812 to rotate. The suction fan 812 sucks air and the blowing fan 88 blows air, which can collect the grinding dust in the filter cartridge 813. Subsequently, the filter cartridge 813 can be easily removed for cleaning using the handle 814.

[0036] The inner wall of the second cover 85 is slidably connected to a baffle plate 815 for sealing the second cover 85. The lower surface of the baffle plate 815 is rotatably connected to a roller 816. The surface of the positioning seat 81 is fixedly connected to two auxiliary blocks 817.

[0037] In this implementation scheme: when the second cover 85 moves towards the pipe I, the roller 816 and the baffle plate 815, together with the auxiliary block 817, will slowly move downward and lose the baffle effect. When the second cover 85 is reset, the auxiliary block 817 squeezes the roller 816 and the baffle plate 815, and the baffle plate 815 can block the second cover 85.

[0038] The adjusting grinding assembly 9 includes two grinding seats 91 that are slidably connected to the inner wall of the main shaft 5. A detachable grinding block 92 is installed on the two grinding seats 91. A return spring 97 is fixedly connected to the side of the grinding seat 91 corresponding to the inner wall of the main shaft 5. A contact wheel 98 is rotatably connected to the inner wall of the grinding seat 91. A push rod 93 is slidably connected to the inner wall of the main shaft 5. A pressing head 96 is fixedly connected to one end of the push rod 93. A push cylinder 95 is installed on the inner wall of the moving seat 4. A push block 94 is fixedly connected to the output end of the push cylinder 95. The push rod 93 is rotatably connected to the inner wall of the push block 94.

[0039] In this implementation scheme: when the main shaft 5 rotates, it can drive the two grinding seats 91 and the grinding block 92 to rotate and perform grinding operations. During adjustment, the cylinder 95 is pushed to drive the push block 94 to move. The push block 94 drives the push rod 93 and the extrusion head 96 to move. The extrusion head 96, in conjunction with the contact wheel 98, can push the two grinding seats 91 to move in the radial direction of the main shaft 5 to adjust the position of the grinding block 92. The return spring 97 can stably drive the grinding seats 91 and the grinding block 92 to return to their original positions.

[0040] The grinding drive unit 6 includes a drive motor 61 mounted on the surface of the movable seat 4. The output end of the drive motor 61 and the surface of the main shaft 5 are respectively fixedly connected to a first sprocket 62 and a second sprocket 63. A chain 64 is installed between the first sprocket 62 and the second sprocket 63.

[0041] In this implementation scheme: When in use, the drive motor 61 is turned on, and the drive motor 61 can drive the first sprocket 62 to rotate. The first sprocket 62 drives the second sprocket 63 and the main shaft 5 to rotate through the chain 64, thereby realizing the drive operation.

[0042] The grinding moving part 7 includes an adjusting screw 72 that is rotatably connected to the inner wall of the machine base 1. The adjusting screw 72 is threadedly connected to the inner wall of the moving seat 4. A moving motor 71 is also installed on the surface of the machine base 1. The output end of the moving motor 71 is fixedly connected to one end of the adjusting screw 72.

[0043] In this implementation: when the movable motor 71 is turned on, the movable motor 71 can drive the adjusting screw 72 to rotate, and the adjusting screw 72 can drive the movable seat 4 to move linearly along the guide rail 3.

[0044] The clamping table 2 includes a fixed base 21 fixed on the surface of the machine base 1. A clamping cylinder 22 is installed on the surface of the fixed base 21. A pressure roller 24 is fixedly connected to the output end of the clamping cylinder 22. Two guide rods 23 that are slidably connected to the inner wall of the fixed base 21 are installed on the pressure roller 24. Two placement wheels 25 are also installed on the fixed base 21.

[0045] In this implementation scheme: when placing pipe fitting I, pipe fitting I can be placed on two placement wheels 25, and one end of pipe fitting I can be made to fit against the cover 84. Then, the clamping cylinder 22 drives the pressure roller 24 to move downward to clamp pipe fitting I.

[0046] Working principle of this invention: When grinding the cast pipe fitting I, firstly, pipe fitting I can be placed on two placement wheels 25 and pushed so that one end of pipe fitting I is in contact with cover 84. Then, the clamping cylinder 22 is opened, causing the pressure roller 24 to move downwards. The pressure roller 24, in conjunction with the two placement wheels 25, can stably clamp pipe fitting I. After clamping, the moving cylinder 811 drives the moving table 82 to move along the guide block 83, thereby causing cover 85 to move closer to pipe fitting I. Finally, cover 84, in conjunction with cover 85, clamps both sides of pipe fitting I. During the movement of cover 85, roller 816 assists in the movement. Block 817, plus the weight of the baffle plate 815, causes the baffle plate 815 to move downwards and lose its obstruction of the cover 85. At this time, the drive motor 61 is turned on, which drives the sprocket 62 to rotate. The sprocket 62 drives the sprocket 63 and the main shaft 5 to rotate through the chain 64. Simultaneously, the moving motor 71 is turned on, which drives the adjusting screw 72 to rotate. The adjusting screw 72 drives the moving seat 4 to move linearly along the guide rail 3. The main shaft 5 drives the grinding seat 91 and the grinding block 92 to rotate while moving the grinding seat 91 and the grinding block 92, thus fully opening the inner wall of the pipe fitting I.

[0047] During the grinding process of the main spindle 5 rotating and moving, the blower shaft 86 can effectively support the main spindle 5. At the same time, the main spindle 5 can drive the blower shaft 86 and the blower fan 88 to rotate. The blower fan 88, together with the air inlet 89, blows air onto the inner wall of the pipe I. The blower shaft 86, together with the timing belt one, drives the timing shaft 87 to rotate. The timing shaft 87 drives the timing head 820 to rotate. The timing head 820, together with the timing belt two, drives the suction shaft 810 and the suction fan 812 to rotate. The suction fan 812 sucks air and blows air together with the blower fan 88. With blowing and suction, the grinding dust can be collected in the filter cartridge 813. The filter cartridge 813 can be easily removed for cleaning through the handle 814.

[0048] After the grinding is completed, all parts are reset. During the reset process of the second cover 85, the roller 816 in the baffle 815, together with the auxiliary block 817, can drive the baffle 815 to move upward and slowly seal the second cover 85.

[0049] When the position of the grinding block 92 needs to be adjusted during grinding, the push cylinder 95 is opened, and the push cylinder 95 drives the push block 94 to move. The push block 94 drives the push rod 93 and the extrusion head 96 to move. The extrusion head 96, in conjunction with the contact wheel 98, can push the two grinding seats 91 to move along the radial direction of the main shaft 5 to adjust the position of the grinding block 92. The return spring 97 deforms with the extrusion and generates elastic force. The detachable grinding block 92 is fixedly installed on the grinding seat 91 with screws for easy replacement later.

[0050] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding device for the inner wall of a casting, comprising a machine base (1), characterized in that: The surface of the machine base (1) is equipped with two sets of guide rails (3), and the surfaces of the two sets of guide rails (3) are slidably connected to a movable seat (4). The surface of the machine base (1) is also provided with a placement clamping table (2) for placing clamping pipe fittings. The inner wall of the movable seat (4) is rotatably connected to a spindle (5). An adjusting grinding component (9) is provided on the spindle (5). A grinding drive unit (6) is provided on the movable seat (4) for controlling the rotation of the spindle (5) and the adjusting grinding component (9). A grinding moving part (7) is provided on the surface of the machine base (1) for controlling the movement of the movable seat (4) and the adjusting grinding component (9) along the guide rails (3). A dust collection device (8) is also provided on the surface of the machine base (1). The dust collection device (8) includes a positioning seat (81) fixed on the surface of the machine base (1). A movable moving platform is provided on the positioning seat (81). Cover one (84) and cover two (85) are fixedly connected to the surfaces of the positioning seat (81) and the moving platform, respectively, located on both sides of the grinding pipe. A blowing part and a suction part are respectively provided inside the cover one (84) and the cover two (85). A transmission part is provided between the blowing part and the suction part. The main shaft (5) is inserted into the blowing part and drives the blowing part to rotate synchronously. A collection part is inserted into the inner wall of the cover two (85) for collecting grinding dust. The blowing and suction parts include a blowing shaft (86) and a suction shaft (810) that are rotatably connected to the inner walls of the first (84) and the second (85) housing respectively. A blower fan (88) and a suction fan fan (812) are fixedly connected to one end of the blowing shaft (86) and the suction shaft (810) respectively. The main shaft (5) is inserted into the inner wall of the blowing shaft (86). An air inlet (89) and an air outlet (818) are opened on the surface of the first (84) and the second (85) housing respectively.

2. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The mobile platform includes two guide blocks (83) fixed on the surface of the positioning seat (81), and a moving stage (82) is slidably connected to the surface of the guide blocks (83). A moving cylinder (811) is installed on the inner wall of the positioning seat (81), and the output end of the moving cylinder (811) is fixedly connected to the surface of the moving stage (82).

3. The grinding device for the inner wall of a casting according to claim 2, characterized in that: The transmission unit includes a synchronous shaft (87) rotatably connected to the inner wall of the positioning seat (81). A synchronous belt is installed between the synchronous shaft (87) and the blowing shaft (86). A hollow seat (819) is fixedly connected to the surface of the moving table (82). A synchronous head (820) is rotatably connected to the inner wall of the hollow seat (819). The synchronous shaft (87) is inserted into the inner wall of the synchronous head (820). A synchronous belt is installed between the synchronous head (820) and the suction shaft (810).

4. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The collection section includes a filter cylinder (813) inserted into the inner wall of the second cover (85), and a handle (814) is fixedly connected to the upper end of the filter cylinder (813).

5. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The inner wall of the second cover (85) is slidably connected to a baffle plate (815) for sealing the second cover (85), and the lower surface of the baffle plate (815) is rotatably connected to a roller (816). The surface of the positioning seat (81) is fixedly connected to two auxiliary blocks (817).

6. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The adjusting grinding assembly (9) includes two grinding seats (91) that are slidably connected to the inner wall of the main shaft (5). A detachable grinding block (92) is installed on the two grinding seats (91). A return spring (97) is fixedly connected to the side of the grinding seat (91) corresponding to the inner wall of the main shaft (5). A fitting wheel (98) is rotatably connected to the inner wall of the grinding seat (91). A push rod (93) is slidably connected to the inner wall of the main shaft (5). A pressing head (96) is fixedly connected to one end of the push rod (93). The pressing head (96) cooperates with the fitting wheel (98) to drive the grinding seat (91) to move radially along the main shaft (5). A push cylinder (95) is installed on the inner wall of the moving seat (4). A push block (94) is fixedly connected to the output end of the push cylinder (95). The push rod (93) is rotatably connected to the inner wall of the push block (94).

7. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The grinding drive unit (6) includes a drive motor (61) mounted on the surface of the moving seat (4). The output end of the drive motor (61) and the surface of the main shaft (5) are respectively fixedly connected to a sprocket one (62) and a sprocket two (63). A chain (64) is installed between the sprocket one (62) and the sprocket two (63).

8. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The grinding moving part (7) includes an adjusting screw (72) that is rotatably connected to the inner wall of the machine base (1). The adjusting screw (72) is threadedly connected to the inner wall of the moving seat (4). A moving motor (71) is also installed on the surface of the machine base (1). The output end of the moving motor (71) is fixedly connected to one end of the adjusting screw (72).

9. The grinding device for the inner wall of a casting according to claim 1, characterized in that: The placement clamping table (2) includes a fixed seat (21) fixed on the surface of the machine base (1). A clamping cylinder (22) is installed on the surface of the fixed seat (21). A pressure roller (24) is fixedly connected to the output end of the clamping cylinder (22). Two guide rods (23) that are slidably connected to the inner wall of the fixed seat (21) are installed on the pressure roller (24). Two placement wheels (25) are also installed on the fixed seat (21).

Images