Metal casting surface polishing device

Abstract

The invention relates to the technical field of metal casting machining, in particular to a metal casting surface polishing device which comprises a machine table. The fixing mechanism is used for fixing the annular casting; the polishing mechanism is used for polishing the fixed annular casting; the cooling mechanism is used for cooling the annular casting when the annular casting is polished; the cooling mechanism comprises an outer cooling assembly and an inner cooling assembly; the outer cooling assembly comprises a circular ring, a liquid storage shell, a spray head, a guide groove and a mounting shell, wherein the liquid storage shell and the spray head are arranged in the circumferential direction of the circular ring, the guide groove is formed in the circular ring, and the mounting shell is fixedly connected with the liquid storage shell. According to the annular casting polishing device, through mutual cooperation of the outer cooling assembly and the inner cooling assembly, synchronous cooling of the outer wall and the inner wall of the annular casting is achieved, cooling and polishing are conducted synchronously, timely cooling during polishing of the annular casting is achieved, the cooling effect is good, deformation during polishing of the annular casting is prevented, and the production quality of the annular casting is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting processing, in particular to a metal casting surface polishing device. Background Art

[0002] Metal castings are made by pouring, injecting, sucking or other casting methods into a pre-prepared mold of smelted liquid metal. After it cools and solidifies, it undergoes subsequent processing such as polishing to finally obtain objects with a certain shape, size and performance. They are widely used in various industrial and engineering environments, such as mechanical structural components, heavy machinery parts, construction and infrastructure.

[0003] Among them, annular castings, such as bearing rings, often have many burrs on their surfaces after production, and need to be polished to improve the surface quality and aesthetics of the annular castings.

[0004] A Chinese patent application numbered CN202311240895.1 discloses a precision casting surface treatment device, comprising a table, a pair of half boxes that fit the top surface of the table are arranged on the top of the table, an L-shaped half pipe that communicates with the half box is arranged at the front end of the half box, a force rod is fixed to the side of the half box, a spring is fixed to the outside of the force rod, a fixed plate is fixed to the other end of the spring, a spacing adjustment component is arranged between the two fixed plates, a fixed component that can be wrapped by two half boxes is arranged on the top of the table, a plurality of guide pillars distributed in corners are fixed on the top of the table, the top of the plurality of guide pillars is fixed with the same top plate, the plurality of guide pillars are sleeved with the same middle plate, a pair of push rods are arranged on the middle plate, and the adjacent ends of the push rod and the force rod are both provided with inclined surfaces. In the invention, the fixed component is wrapped inside by two half boxes, and the debris splashing outward impacts the circumferential inner wall of the half box, and then falls from the two half pipes, thereby effectively avoiding the splashing of debris.

[0005] A Chinese patent with application number CN202210122389.1 discloses a bearing raceway surface processing device, including a grinding module, the grinding module includes a connection frame, the top surface of the connection frame is provided with a fixed disk, the side of the fixed disk is fixedly connected to a clamping module, the top surface of the fixed disk is fixedly connected to a power mechanism for driving the connection frame to rotate, the inner side surface of the connection frame is slidably connected to a sliding plate, and the inner side surface of the connection frame is rotatably connected to an adjustment screw connected to the sliding plate. In this invention, the return spring 1 is fixedly connected to the sliding block, and when the raceway is polished, under the action of the return spring 1, the polishing block can always be in close contact with the raceway, which is conducive to improving the polishing effect, and after the polishing is completed, the sliding block can be directly opened, and then the inner ring can be removed, and there is no need to frequently adjust the position of the polishing block, which is conducive to the use of the processing device.

[0006] In the prior art, the annular casting cannot be cooled during grinding and polishing. Since the annular casting generates a large amount of heat during the polishing process, the annular casting is easily deformed by heat, thereby reducing the production quality of the annular casting.

[0007] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0008] The object of the present invention is to provide a metal casting surface polishing device which can effectively solve the above technical problems.

[0009] In order to achieve the purpose of the present invention, the following technical scheme is adopted: A metal casting surface polishing device comprises: a machine platform; a fixing mechanism for fixing an annular casting; a polishing mechanism for polishing the fixed annular casting; a cooling mechanism for cooling the annular casting during polishing; The cooling mechanism comprises: an external cooling component and an internal cooling component; The external cooling assembly comprises: a circular ring, a liquid storage shell and a nozzle arranged along the circumference of the circular ring, a guide groove provided in the circular ring, a mounting shell fixedly connected to the liquid storage shell, a linkage gear rotatably mounted on the mounting shell, a circular plate coaxially connected to the linkage gear, a linkage rod hingedly mounted to the circular plate, a push rod hingedly mounted to the linkage rod, a first piston fixedly connected to the end of the push rod, a fixing pipe fixedly mounted on the mounting shell, and a driving unit for driving the nozzle to move along the path of the guide groove; The internal cooling component includes: a liquid guide tube fixedly installed on the machine platform, an annular water bag fixedly sleeved on the liquid guide tube, a liquid storage tube connected to the liquid guide tube, a second piston slidably installed in the liquid storage tube, and a power unit driving the second piston to move.

[0010] Furthermore, the guide groove is an annular groove with a uniform waveform, and a tooth block is fixedly installed in the guide groove, and the linkage gear and the tooth block are meshed with each other.

[0011] Furthermore, the driving unit includes: a fixing rod fixedly mounted on the liquid storage shell, a limiting plate mounted on the fixing rod, an installation box fixedly connected to the limiting plate, a cylinder fixedly mounted on the installation box, a driven gear fixedly mounted on the cylinder, a driving gear meshingly connected to the driven gear, and a power source for driving the driving gear to rotate.

[0012] Furthermore, the power unit includes: a cooling box fixedly installed in the machine, a fixed plate fixedly installed in the cooling box, a threaded rod rotatably installed on the liquid storage tube and the fixed plate, a power source for driving the threaded rod to rotate, a threaded tube threadedly connected to the threaded rod, and a limit member for limiting the movement of the threaded tube; the threaded tube is fixedly connected to the second piston.

[0013] Furthermore, the limiting member includes: a limiting tube fixedly installed in the liquid storage tube, and a limiting strip fixedly installed on the threaded tube; a limiting groove 1 is provided in the limiting tube, and the limiting strip slides in the limiting groove 1.

[0014] Furthermore, the fixing mechanism includes: a mounting frame fixedly mounted on the machine platform, a movable plate movably mounted in the mounting frame, a power source for driving the movable plate to move, a guide member for guiding the movable plate when it moves, a pressure plate rotatably mounted on the mounting box, a positioning plate one fixedly mounted on the pressure plate, and a positioning plate two fixedly mounted on the machine platform.

[0015] Furthermore, the polishing mechanism includes: a rotating plate rotatably installed in the installation box, a power source four for driving the rotating plate to rotate, a guide groove opened on the rotating plate, a limit groove two opened on the installation box, a movable rod installed through the guide groove and the limit groove two, a polishing plate fixedly connected to the movable rod, and an orienting member for orienting the polishing plate when it moves.

[0016] Furthermore, the directional member includes: a slider fixedly installed on the end of the movable rod, a sliding rod penetrating and installed on the slider, and a sliding groove opened in the installation box; the slider slides in the sliding groove.

[0017] Furthermore, the cooling mechanism further comprises: a recovery component for recovering the coolant, and a replenishment component for replenishing the coolant into the liquid storage shell; The recycling component comprises: a collecting tank disposed on the machine platform, a through hole communicating with the collecting tank, and a filter net movably installed in the collecting tank.

[0018] Furthermore, the supplementary component includes: a liquid inlet pipe and a liquid outlet pipe connected to the liquid storage pipe, a liquid collecting pipe fixedly installed on the installation box, and a connecting pipe connecting the liquid collecting pipe and the liquid storage shell; the liquid outlet end of the liquid storage pipe is rotatably connected to the liquid collecting pipe, and the liquid storage pipe is connected to the liquid collecting pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a surface polishing device for metal castings. Through the cooperation between an external cooling component and an internal cooling component, synchronous cooling of the outer wall and the inner wall of the annular casting is achieved. The cooling and polishing are performed synchronously, so timely cooling of the annular casting during polishing is achieved. The cooling effect is good, deformation of the annular casting during polishing is prevented, and the production quality of the annular casting is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] Figure 1 It is a three-dimensional schematic diagram of a metal casting surface polishing device of the present invention; Figure 2 It is a cross-sectional schematic diagram of a component mounting frame of a metal casting surface polishing device of the present invention; Figure 3 A metal casting surface polishing device according to the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 It is a cross-sectional schematic diagram of a component movable plate of a metal casting surface polishing device of the present invention; Figure 5 It is a three-dimensional schematic diagram of a circular ring of components of a metal casting surface polishing device of the present invention; Figure 6 It is a schematic cross-sectional view of a component machine of a metal casting surface polishing device of the present invention; Figure 7 It is a schematic cross-sectional view of a circular ring of components of a metal casting surface polishing device of the present invention; Figure 8 It is a cross-sectional schematic diagram of a component installation box of a metal casting surface polishing device of the present invention; Fig. 9 A metal casting surface polishing device according to the present invention Figure 8 Enlarged view of point B in the middle; Fig.10 It is a schematic cross-sectional view of a component installation shell of a metal casting surface polishing device of the present invention; Fig.11 It is a three-dimensional schematic diagram of a component positioning plate of a metal casting surface polishing device of the present invention; Fig.12 A schematic cross-sectional view of a liquid storage pipe component of a metal casting surface polishing device according to the present invention; Fig.13 The present invention is a schematic cross-sectional view of a threaded pipe component of a metal casting surface polishing device.

[0022] In the figure: 1. Machine; 2. Fixing mechanism; 21. Mounting frame; 22. Power source 1; 23. Movable plate; 24. Pressing plate; 25. Positioning plate 1; 26. Positioning plate 2; 27. Guide member; 271. Guide rail; 272. Guide block; 3. Polishing mechanism; 31. Turning plate; 32. Power source 4; 33. Guide groove; 34. Limiting groove 2; 35. Movable rod; 36. Polishing plate; 37. Orienting member; 371. Sliding block; 372. Sliding rod; 4. Cooling mechanism; 41. External cooling assembly; 411. Circular ring; 412. Liquid storage shell; 413. Nozzle; 414. Guide groove; 415. Suction unit; 4151. Mounting shell; 4152. Linking gear; 4153. Circular plate; 4154. Linking rod; 4155. Push rod; 4156. First piston; 4157. Fixed tube; 416. Drive unit; 4161, fixed rod; 4162, limit plate; 4163, installation box; 4164, cylinder; 4165, driven gear; 4166, driving gear; 4167, power source 2; 42, internal cooling assembly; 421, liquid guide tube; 422, annular water bag; 423, liquid storage tube; 424, second piston; 425, power unit; 4251, cooling box; 4252, threaded rod ; 4253, threaded pipe; 4254, power source three; 4255, limit piece; 42551, limit pipe; 42552, limit strip; 42553, limit slot one; 43, recovery component; 431, collection slot; 432, through hole; 433, filter screen; 44, replenishment component; 441, liquid inlet pipe; 442, liquid outlet pipe; 443, liquid collecting pipe; 444, connecting pipe; 45, stirring blade. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0024] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 13 As shown, a metal casting surface polishing device of the present invention comprises: a machine table 1; a fixing mechanism 2 for fixing the annular casting; a polishing mechanism 3 for polishing the fixed annular casting; and a cooling mechanism 4 for cooling the annular casting when the annular casting is being polished.

[0026] The fixing mechanism 2 includes: a mounting frame 21 fixedly mounted on the machine 1, a movable plate 23 movably mounted in the mounting frame 21, a power source 22 for driving the movable plate 23 to move, the power source 22 fixedly mounted on the mounting frame 21, a guide member 27 for guiding the movable plate 23 when it moves, a pressing plate 24 rotatably mounted on the mounting box 4163, a positioning plate 25 fixedly mounted on the pressing plate 24, and a positioning plate 26 fixedly mounted on the machine 1.

[0027] When the annular casting is fixed, the annular casting is first placed on the machine table 1 and mounted on the second positioning plate 26. The second positioning plate 26 matches the inner diameter of the annular casting. The setting of the second positioning plate 26 can position the annular casting, improve the fixing efficiency of the annular casting, and avoid the displacement of the annular casting in the horizontal direction.

[0028] At this time, by starting the power source 22, the movable plate 23 is driven to move downward, the movable plate 23 drives the cylinder 4164 to move downward, the cylinder 4164 drives the installation box 4163 to move downward, the installation box 4163 drives the pressure plate 24 to move downward, the pressure plate 24 drives the positioning plate 25 to move downward, when the pressure plate 24 presses against the top of the annular casting, the positioning plate 25 is inserted into the annular casting, and the positioning plate 25 matches the inner diameter size of the annular casting, through the positioning plate 25, the annular casting can be further positioned, the fixing effect of the annular casting is improved, and the horizontal displacement of the annular casting is avoided.

[0029] Through the cooperation between the positioning plate 1 25 and the positioning plate 2 26, the annular casting can be double positioned, and the positions near the top and near the bottom of the annular casting can be positioned, effectively avoiding the displacement of the annular casting in the horizontal direction, and greatly improving the stability of the annular casting during polishing.

[0030] Through the cooperation between the pressing plate 24 and the machine platform 1, the top and bottom of the annular casting can be squeezed and fixed, thereby preventing the annular casting from being displaced in the vertical direction, and further improving the stability of the annular casting during polishing.

[0031] In the present application, the fixing mechanism 2 is provided to fix the annular casting from different directions, which greatly improves the stability of the annular casting during polishing, avoids the problem of the polishing accuracy being affected by the shaking of the annular casting, and improves the production quality of the annular casting.

[0032] It is to be added here that the power source 22 is preferably: a cylinder.

[0033] The guide member 27 includes: a guide block 272 fixedly mounted on the movable plate 23 , and a guide rail 271 for guiding the guide block 272 to slide; the guide rail 271 is fixedly mounted on the mounting frame 21 .

[0034] When the movable plate 23 moves, the guide block 272 can be driven to slide on the guide rail 271, so that the moving direction of the movable plate 23 can be limited, thereby improving the stability of the movable plate 23 when moving.

[0035] The polishing mechanism 3 includes: a rotating plate 31 rotatably installed in the installation box 4163, a power source 4 32 for driving the rotating plate 31 to rotate, a guide groove 33 provided on the rotating plate 31, a limit groove 2 34 provided on the installation box 4163, a movable rod 35 installed through the guide groove 33 and the limit groove 2 34, a polishing plate 36 fixedly connected to the movable rod 35, and an orienting member 37 for orienting the polishing plate 36 when it moves; the power source 4 32 is fixedly installed in the installation box 4163; the orienting member 37 includes: a slider 371 fixedly installed at the end of the movable rod 35, a slide rod 372 installed through the slider 371, and a slide groove provided in the installation box 4163; the slider 371 slides in the slide groove, and both ends of the slide rod 372 are fixedly installed in the slide groove.

[0036] Since the polishing mechanism 3 is installed on the installation box 4163, when the power source 1 22 drives the movable plate 23 to move downward, it can drive the installation box 4163 to move downward, and then drive the polishing plate 36 to move downward. After the annular casting is fixed, the polishing plate 36 moves to the required position. At this time, by starting the power source 4 32 to drive the rotating plate 31 to rotate, under the guidance of the guide groove 33, it can drive multiple movable rods 35 to move, and the movable rods 35 drive the adjacent polishing plates 36 to abut against the surface of the annular casting.

[0037] When the movable rod 35 moves, it can drive the adjacent slider 371 to slide in the slide groove, and through the cooperation with the limiting groove, the moving direction of the linkage rod 4154 is oriented, thereby orienting the moving direction of the polishing plate 36.

[0038] Since multiple groups of polishing plates 36 are arranged along the circumference of the installation box 4163, the outer wall of the annular casting can be polished simultaneously by multiple groups of polishing plates 36, thereby improving the polishing efficiency.

[0039] It is to be added here that the power source four 32 is preferably: a motor.

[0040] In the present invention, by starting the power source 1 22, on the one hand, the pressure plate 24, the positioning plate 1 25, and the positioning plate 2 26 can be driven to clamp and fix the annular casting, and on the other hand, the polishing mechanism 3 can be driven to move to the required polishing position synchronously.

[0041] The cooling mechanism 4 includes: an outer cooling component 41 and an inner cooling component 42; the outer cooling component 41 includes: a ring 411 fixedly mounted on the bottom of the movable plate 23, a liquid storage shell 412 and a nozzle 413 arranged along the circumference of the ring 411, a guide groove 414 provided in the ring 411, a driving unit 416 driving the nozzle 413 to move along the path of the guide groove 414, and a suction unit 415 sucking the coolant in the liquid storage shell 412 into the nozzle 413; the suction unit 415 includes: a mounting shell 4151 fixedly connected to the liquid storage shell 412, a linkage gear 4152 rotatably mounted on the mounting shell 4151, and a linkage gear 4152 connected to the linkage gear 4153. 152, a circular plate 4153 coaxially connected to the circular plate 4153, a connecting rod 4154 hingedly installed on the connecting rod 4154, a first piston 4156 fixedly connected to the end of the pushing rod 4155, and a fixed tube 4157 fixedly installed on the mounting shell 4151; the first piston 4156 slides in the fixed tube 4157, the nozzle 413 is connected to the fixed tube 4157 through a first delivery tube, and a first one-way valve (not shown) is installed on the first delivery tube, and the fixed tube 4157 is connected to the liquid storage shell 412 through a second delivery tube, and a second one-way valve (not shown) is installed on the second delivery tube.

[0042] Since the external cooling component 41 is installed at the bottom of the movable plate 23, when the power source 1 22 drives the movable plate 23 to move downward, it further drives the external cooling component 41 to move downward; when the annular casting is fixed, the external cooling component 41 moves to the required position; in the present invention, by starting the power source 1 22, on the one hand, it can drive the pressure plate 24, the positioning plate 1 25, and the positioning plate 2 26 to clamp and fix the annular casting, and on the other hand, it can simultaneously drive the polishing mechanism 3 to move to the required polishing position, and simultaneously drive the external cooling component 41 to move to the required cooling position.

[0043] When the annular casting needs to be cooled, the driving unit 416 is started, and the driving unit 416 includes: a fixing rod 4161 fixedly mounted on the liquid storage shell 412, and a nozzle 413 is installed at the bottom end of the fixing rod 4161; a limiting plate 4162 mounted on the fixing rod 4161; an installation box 4163 fixedly connected to the limiting plate 4162; a cylinder 4164 fixedly mounted on the installation box 4163, and the cylinder 4164 is rotatably mounted on the movable plate 23; a driven gear 4165 fixedly mounted on the cylinder 4164; a driving gear 4166 meshingly connected to the driven gear 4165; a power source 4167 that drives the driving gear 4166 to rotate; the power source 4167 is fixedly mounted on the movable plate 23, and the output end of the power source 4167 is connected to the driving gear 4166.

[0044] Specifically, by starting the second power source 4167, the driving gear 4166 is driven to rotate, the driving gear 4166 drives the driven gear 4165 to rotate, the driven gear 4165 drives the cylinder 4164 to rotate, the cylinder 4164 drives the installation box 4163 to rotate, the installation box 4163 drives the limit plate 4162 to rotate, the limit plate 4162 drives the fixing rod 4161 to rotate, the fixing rod 4161 drives the liquid storage shell 412 to rotate, the liquid storage shell 412 drives the installation shell 415 1 rotates, thereby driving the linkage gear 4152 to rotate. Since the guide groove 414 is an annular groove with a uniform waveform, and a tooth block (not shown) is fixedly installed in the guide groove 414, the linkage gear 4152 and the tooth block are meshed with each other, and the tooth block is arranged at the bottom of the inner cavity of the guide groove 414. Under the action of gravity, the linkage gear 4152 is always meshed with the tooth block, so that the linkage gear 4152 can be lifted and moved while rotating along the circumferential rotation of the installation box 4163.

[0045] When the linkage gear 4152 rotates, the circular plate 4153 can be driven to rotate, the circular plate 4153 drives the linkage rod 4154 to move, the linkage rod 4154 drives the push rod 4155 to move, and the push rod 4155 drives the first piston 4156 to move up and down in the fixed tube 4157; when the first piston 4156 moves upward, the first one-way valve is closed, the second one-way valve is opened, and the coolant in the liquid storage shell 412 is sucked into the fixed tube 4157; when the first piston 4156 moves downward, the first one-way valve is opened, and the second one-way valve is opened. The one-way valve is closed, and the coolant in the fixed pipe 4157 is squeezed, transported to the nozzle 413 through the second delivery pipe, and sprayed on the outside of the annular casting; on the one hand, the polishing part of the annular casting can be cooled to avoid deformation of the outer wall of the annular casting caused by excessive temperature during polishing, thereby protecting the outer wall of the annular casting from thermal damage and improving the polishing efficiency and quality; on the other hand, spraying the coolant can clean away the debris, dust and stains generated during polishing, keep the outer wall of the annular casting clean, and further improve the quality and appearance of the annular casting.

[0046] At the same time, as the linkage gear 4152 moves along the guide groove 414, the mounting shell 4151 is able to rotate circumferentially and move up and down, thereby driving the fixing rod 4161 to rotate circumferentially and move up and down, and further driving the nozzle 413 to rotate circumferentially and move up and down, so that the nozzle 413 has a wide spraying range, and the outer wall of the annular casting is fully sprayed with coolant, thereby enhancing the effect of cooling the outer wall of the annular casting and cleaning the debris, dust and stains generated during polishing.

[0047] In addition, the rotation of the mounting box 4163 can drive the movable rod 35 to rotate, and the movable rod 35 drives the adjacent polishing plate 36 to rotate, so that the outer wall of the annular casting can be polished.

[0048] In the present invention, the external cooling assembly 41 cools the outer wall of the annular casting while simultaneously driving the polishing plate 36 to polish the outer wall of the annular casting, so that cooling and polishing are performed simultaneously, thereby achieving timely cooling of the annular casting during polishing.

[0049] It should be added here that the power source 2 4167 is preferably: an electric motor.

[0050] The internal cooling component 42 includes: a liquid guide tube 421 fixedly installed on the machine 1, the liquid guide tube 421 passes through the positioning plate 26; an annular water bag 422 fixedly mounted on the liquid guide tube 421, the bottom of the annular water bag 422 abuts against the positioning plate 26, and the annular water bag 422 is connected to the liquid guide tube 421; a liquid storage tube 423 connected to the liquid guide tube 421, the liquid storage tube 423 is fixedly installed in the cooling box 4251; a second piston 424 slidably installed in the liquid storage tube 423; and a power unit 425 that drives the second piston 424 to move.

[0051] While cooling the outer wall of the annular casting, the power unit 425 is started, thereby driving the second piston 424 to move upward in the liquid storage tube 423. The portion of the liquid storage tube 423 located above the second piston 424 stores coolant. When the second piston 424 moves upward, the coolant is squeezed into the annular water bag 422, causing the annular water bag 422 to expand, thereby supporting the annular casting from the inside and cooling the inside of the annular casting; the power unit 425 includes: a cooling box 4251 fixedly installed in the machine 1, a fixing plate fixedly installed in the cooling box 4251, a threaded rod 4252 rotatably installed on the liquid storage tube 423 and the fixing plate, a power source three 4254 for driving the threaded rod 4252 to rotate, a threaded pipe 4253 fixedly installed on the fixing plate and threadedly connected to the threaded rod 4252, and a limiter 4255 for limiting the threaded pipe 4253 when it moves; the threaded pipe 4253 is fixedly connected to the second piston 424.

[0052] Specifically, the power source 3 4254 is started to drive the threaded rod 4252 to rotate, and the threaded tube 4253 is limited by the limiting member 4255, so that the threaded tube 4253 moves upward along the axial direction of the threaded rod 4252.

[0053] The limiting member 4255 includes: a limiting tube 42551 fixedly installed in the liquid storage tube 423, and a limiting strip 42552 fixedly installed on the threaded tube 4253; a limiting groove 42553 is provided in the limiting tube 42551, and the limiting strip 42552 slides in the limiting groove 42553; that is, through the mutual cooperation between the limiting strip 42552 and the limiting tube 42551, the threaded tube 4253 moves upward along the axial direction of the threaded rod 4252, and the threaded tube 4253 drives the second piston 424 to move upward in the liquid storage tube 423, and the coolant located above the second piston 424 is squeezed and enters the annular water bag 422 through the liquid guide tube 421, so that the annular water bag 422 expands.

[0054] After the annular casting is fixed by the positioning plate 1 25 and the positioning plate 2 26, the positioning plate 1 25 abuts against the top of the annular water bag 422; the arrangement of the positioning plate 1 25 and the positioning plate 2 26, on the one hand, can play a double positioning role for the annular casting, effectively avoiding the displacement of the annular casting in the horizontal direction, and greatly improving the stability of the annular casting during polishing; on the other hand, it plays a limiting role when the annular water bag 422 expands, so that the annular water bag 422 can only expand along the circumferential direction of the liquid guide tube 421, preventing the annular water bag 422 from expanding along the axial direction of the liquid guide tube 421.

[0055] The expanded annular water bag 422 is tightly attached to the inner wall of the annular casting. On the one hand, it can cool the inner wall of the annular casting, avoiding the problem that the annular casting will generate a lot of heat during the polishing process, which may easily cause the annular casting to deform due to heat, and further improve the production quality of the annular casting; on the other hand, it can squeeze the inner wall of the annular casting, thereby supporting the inner wall of the annular casting, further improving the stability of the inner wall of the annular casting during polishing, and preventing the annular casting from shifting and affecting the polishing accuracy.

[0056] In the present invention, the outer cooling component 41 and the inner cooling component 42 cooperate with each other to achieve synchronous cooling of the outer wall and the inner wall of the annular casting, and cooling and polishing are carried out simultaneously, thereby achieving timely cooling of the annular casting during polishing, with good cooling effect, preventing deformation of the annular casting during polishing, and greatly improving the production quality of the annular casting.

[0057] It is to be added here that the power source three 4254 is preferably: a motor.

[0058] The cooling mechanism 4 also includes: a recovery component 43 for recovering the used coolant, and a replenishing component 44 for replenishing the coolant into the liquid storage shell 412; the recovery component 43 includes: a collection tank 431 opened on the machine 1, a through hole 432 connected to the collection tank 431, a plurality of through holes 432 are provided to improve the efficiency of the coolant flowing into the cooling box 4251, and a filter screen 433 movably installed in the collection tank 431.

[0059] The used coolant mixed with the solid impurities generated by the polishing of the annular casting flows into the collecting tank 431, and the coolant can be filtered through the filter 433. The solid impurities such as debris are retained on the filter 433. The filtered coolant flows into the cooling box 4251 through the through hole 432, thereby realizing the recycling of the coolant, improving the utilization rate of the coolant, and saving production costs.

[0060] The filter screen 433 can be detachably installed in the collecting tank 431 , so that the filter screen 433 can be easily disassembled, and then the filter screen 433 can be easily cleaned or replaced.

[0061] It is added here that the cooling box 4251 can be connected to an external cold source to cool the coolant in the cooling box 4251, thereby ensuring the cooling effect on the outer wall of the annular casting; since the liquid storage tube 423 is immersed in the coolant in the cooling box 4251, the coolant in the cooling box 4251 can cool the liquid storage tube 423, and then cool the coolant in the liquid storage tube 423, thereby ensuring the cooling effect on the inner wall of the annular casting.

[0062] In addition, a stirring blade 45 is fixedly installed on the threaded rod 4252. When the threaded rod 4252 rotates, the stirring blade 45 can be driven to rotate, thereby stirring the coolant, so that when the cold source cools the coolant, the coolant is cooled evenly, ensuring the cooling effect of the coolant.

[0063] The replenishing component 44 includes: a liquid inlet pipe 441 and a liquid outlet pipe 442 connected to the liquid storage pipe 423, a liquid collecting pipe 443 fixedly installed on the installation box 4163, and a connecting pipe 444 located in the cylinder 4164 and connecting the liquid collecting pipe 443 and the liquid storage shell 412; the liquid outlet end of the liquid outlet pipe 442 is rotatably connected to the liquid collecting pipe 443, and the liquid outlet pipe 442 is connected to the liquid collecting pipe 443; a third one-way valve (not shown) is installed on the liquid inlet pipe 441, and a fourth one-way valve (not shown) is installed on the liquid outlet pipe 442.

[0064] When the second piston 424 moves upward in the liquid storage tube 423, the third one-way valve opens and the fourth one-way valve closes. At this time, the coolant in the cooling box 4251 enters the liquid storage tube 423 through the liquid inlet pipe 441; when the second piston 424 moves downward in the liquid storage tube 423, the third one-way valve closes and the fourth one-way valve opens. The coolant absorbed in the liquid storage tube 423 is squeezed out by the second piston 424 and flows through the liquid outlet pipe 442, the liquid collecting pipe 443, the connecting pipe 444 in turn, and flows into the liquid storage shell 412, thereby realizing automatic replenishment of the coolant in the liquid storage shell 412 without manual replenishment, thereby improving work efficiency.

[0065] In the present invention, when the second piston 424 moves upward in the liquid storage tube 423, on the one hand, the coolant in the liquid storage tube 423 located above the second piston 424 is squeezed into the annular water bag 422, and on the other hand, the liquid inlet pipe 441 synchronously absorbs the coolant into the liquid storage tube 423; when the second piston 424 moves downward in the liquid storage tube 423, on the one hand, the coolant in the annular water bag 422 is absorbed into the liquid storage tube 423, and on the other hand, the coolant absorbed by the liquid inlet pipe 441 can be transported to the liquid storage shell 412, thereby realizing automatic replenishment of the coolant in the liquid storage shell 412.

[0066] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0067] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A metal casting surface polishing device, characterized in that: include: Machine; A fixing mechanism for fixing the annular casting; A polishing mechanism for polishing the fixed annular casting; A cooling mechanism for cooling the annular casting when the annular casting is polished; The cooling mechanism comprises: an external cooling component and an internal cooling component; The external cooling assembly comprises: a circular ring, a liquid storage shell and a nozzle arranged along the circumference of the circular ring, a guide groove provided in the circular ring, a mounting shell fixedly connected to the liquid storage shell, a linkage gear rotatably mounted on the mounting shell, a circular plate coaxially connected to the linkage gear, a linkage rod hingedly mounted to the circular plate, a push rod hingedly mounted to the linkage rod, a first piston fixedly connected to the end of the push rod, a fixing pipe fixedly mounted on the mounting shell, and a driving unit for driving the nozzle to move along the path of the guide groove; The internal cooling component includes: a liquid guide tube fixedly installed on the machine platform, an annular water bag fixedly sleeved on the liquid guide tube, a liquid storage tube connected to the liquid guide tube, a second piston slidably installed in the liquid storage tube, and a power unit driving the second piston to move.

2. A metal casting surface polishing device as claimed in claim 1, characterized in that: The guide groove is an annular groove with uniform waveform, and a tooth block is fixedly installed in the guide groove, and the linkage gear and the tooth block are meshed with each other.

3. A metal casting surface polishing device as claimed in claim 1, characterized in that: The driving unit includes: a fixing rod fixedly mounted on the liquid storage shell, a limiting plate sleeved on the fixing rod, an installation box fixedly connected to the limiting plate, a cylinder fixedly mounted on the installation box, a driven gear fixedly sleeved on the cylinder, a driving gear meshingly connected to the driven gear, and a power source for driving the driving gear to rotate.

4. A metal casting surface polishing device as claimed in claim 1, characterized in that: The power unit includes: a cooling box fixedly installed in the machine, a fixing plate fixedly installed in the cooling box, a threaded rod rotatably installed on the liquid storage tube and the fixing plate, a power source three for driving the threaded rod to rotate, a threaded tube threadedly connected to the threaded rod, and a limiting member for limiting the position of the threaded tube when it moves; the threaded tube is fixedly connected to the second piston.

5. A metal casting surface polishing device as claimed in claim 4, characterized in that: The limiting member comprises: a limiting tube fixedly installed in the liquid storage tube, and a limiting strip fixedly installed on the threaded tube; a limiting groove 1 is provided in the limiting tube, and the limiting strip slides in the limiting groove 1.

6. A metal casting surface polishing device as claimed in claim 3, characterized in that: The fixing mechanism includes: a mounting frame fixedly mounted on the machine platform, a movable plate movably mounted in the mounting frame, a power source for driving the movable plate to move, a guide member for guiding the movable plate when it moves, a pressing plate rotatably mounted on the mounting box, a positioning plate 1 fixedly mounted on the pressing plate, and a positioning plate 2 fixedly mounted on the machine platform.

7. A metal casting surface polishing device as claimed in claim 3, characterized in that: The polishing mechanism includes: a rotating plate rotatably installed in the installation box, a power source four for driving the rotating plate to rotate, a guide groove provided on the rotating plate, a limit groove two provided on the installation box, a movable rod installed through the guide groove and the limit groove two, a polishing plate fixedly connected to the movable rod, and an orienting member for orienting the polishing plate when it moves.

8. A metal casting surface polishing device as claimed in claim 7, characterized in that: The directional member comprises: a sliding block fixedly mounted on the end of the movable rod, a sliding rod penetrating and mounted on the sliding block, and a sliding groove opened in the installation box; the sliding block slides in the sliding groove.

9. A metal casting surface polishing device as claimed in claim 3, characterized in that: The cooling mechanism further comprises: a recovery component for recovering the coolant, and a replenishment component for replenishing the coolant into the liquid storage shell; The recycling component comprises: a collecting tank disposed on the machine platform, a through hole communicating with the collecting tank, and a filter net movably installed in the collecting tank.

10. A metal casting surface polishing device as claimed in claim 9, characterized in that: The replenishing component includes: a liquid inlet pipe and a liquid outlet pipe connected to the liquid storage pipe, a liquid collecting pipe fixedly installed on the installation box, and a connecting pipe connecting the liquid collecting pipe and the liquid storage shell; the liquid outlet end of the liquid storage pipe is rotatably connected to the liquid collecting pipe, and the liquid storage pipe is connected to the liquid collecting pipe.

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