A surface polishing device for precision sand castings

Abstract

The utility model discloses a kind of surface polishing treatment devices of precision sand mould castings, including polishing mechanism, fixed frame, clamping mechanism and the vertical plate and horizontal plate of mutual fixed connection;Fixed frame is located on horizontal plate, clamping mechanism is located on fixed frame, and polishing mechanism is located on vertical plate;Through clamping mechanism clamping castings grate, then promote fixed frame to drive castings grate to move on horizontal plate close to polishing mechanism, then start polishing mechanism to polish castings grate;Clamping mechanism includes first support plate, lead screw, through axle, bidirectional lead screw, first fixed block, second fixed block, adjusting plate, adjusting block;Polishing mechanism includes motor, sanding belt, driven roller, driving roller.The utility model clamps castings by clamping mechanism, makes castings stable and reliable in polishing treatment process, further guarantees polishing quality and polishing safety.

Description

Technical Field

[0001] This utility model belongs to the field of polishing technology for casting products, and specifically relates to a surface polishing device for precision sand castings. Background Technology

[0002] Metal castings undergo numerous post-casting processes after casting, including gating and rising gates, surface polishing, surface rust prevention, and flash removal. Among these, grinding and polishing are the most common processing steps for most castings.

[0003] A search revealed a polishing device for the side of a casting with the existing technology announcement number CN222078895U. In this solution, the water pump casting is placed on the surface of a movable plate, and the movable plate is pushed so that the water pump casting comes into contact with the abrasive belt, thereby polishing. This working method has safety hazards. The water pump casting cannot be fixed on the movable plate, and it will roll and move. Secondly, if it cannot be controlled in time during the movement or rolling, it will damage the abrasive belt or even fall off the movable plate and injure the workers.

[0004] In response to the above problems, the applicant provides a casting surface treatment device that can meet the polishing requirements of the casting grate of the company's products and stabilize the casting during the polishing process. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a surface polishing device for precision sand castings. By clamping the castings with a clamping mechanism, the castings are made stable and reliable during the polishing process, further ensuring polishing quality and safety.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A surface polishing device for precision sand castings includes a polishing mechanism, a fixed frame, a clamping mechanism, and vertical and horizontal plates fixedly connected to each other. The fixed frame is mounted on the horizontal plate, the clamping mechanism is mounted on the fixed frame, and the polishing mechanism is mounted on the vertical plate. The clamping mechanism holds the casting grate, and then the fixed frame is pushed to move the casting grate on the horizontal plate closer to the polishing mechanism. Then the polishing mechanism is activated to polish the casting grate.

[0008] The clamping mechanism includes a first support plate, a lead screw, a through shaft, a bidirectional lead screw, a first fixing block, a second fixing block, an adjusting plate, and an adjusting block. The first support plate is provided with a second support plate, a third support plate, a U-shaped plate, and a first guide shaft. The first guide shaft is slidably connected to a fixing frame and fixedly connected to a U-shaped frame. The second support plate is provided with a third guide shaft. One end of the lead screw is rotatably connected to the first support plate, and the lead screw is threadedly connected to the fixing frame. The through shaft in the middle section of the bidirectional lead screw is rotatably connected to the third support plate. A pair of through shafts are provided, respectively located on both sides of the first support plate. Each through shaft is provided with a second guide shaft and a mounting plate. The mounting plate is threaded to the threaded section of the bidirectional lead screw, and the second guide shaft is slidably connected to the second support plate; the adjusting plate is provided in pairs and is respectively located on the upper and lower sides of the first support plate; the upper adjusting plate is slidably connected to the third guide shaft and is provided with a threaded first screw, and the through shaft at one end of the first screw is rotatably connected to the second support plate, and the two ends of the adjusting plate are provided with horizontal shafts; the lower adjusting plate is fixedly connected to the second support plate through a connecting shaft; the two ends of the through shaft are respectively provided with a first fixing block and a second fixing block that are slidably connected, and the first fixing block and the second fixing block are provided with a support plate and a protrusion; the first fixing block and the second fixing block are slidably connected to the horizontal shaft.

[0009] The second fixing block is also provided with a limiting rod and a pressure plate. One end of the pressure plate touches the side of the second fixing block; the limiting rod touches the side of the pressure plate; the adjusting block is located above the adjusting plate, and the two ends of the adjusting block are provided with crossbars, which are slidably connected to the pressure plate; the adjusting block is provided with a threaded second screw, and one end of the second screw is rotatably connected to the adjusting plate.

[0010] The lead screw is equipped with a telescopic sleeve to protect the lead screw and isolate polishing dust; the threaded section of the bidirectional lead screw and the first and second screws are also equipped with telescopic sleeves to isolate dust.

[0011] The horizontal plate is provided with a third through groove and a fourth through groove. The fourth through groove is located at one end of the horizontal plate, and a collection box is provided below the horizontal plate. The collection box is located below the fourth through groove to collect polishing debris.

[0012] Furthermore, one end of the collection box is equipped with a connected negative pressure suction pipe, which is connected to a negative pressure suction fan; this allows for the suction and collection of fine particles.

[0013] The bottom of the fixed frame is provided with a fixed connecting bearing plate, and the bearing plate is provided with sliding plates at both ends. The sliding plates are located in the third through groove. The sliding plates are provided with a second limiting block fixed by bolts to restrict the bearing plate and prevent it from slipping out of the third through groove.

[0014] The mounting bracket is also equipped with a handle for easy control.

[0015] The polishing mechanism includes a motor, a sanding belt, a driven roller, and a drive roller. The motor is fixed to the vertical plate by a motor mount, and the driven roller and the drive roller are fixed to the vertical plate by bearing mounts. The sanding belt is located between the driven roller and the drive roller. The drive roller and the motor shaft are equipped with pulleys, and a belt is installed between the pulleys. The motor drives the drive roller to rotate, which in turn drives the driven roller and the sanding belt to rotate.

[0016] The pulley and belt are equipped with a protective cover, which is fixed to the vertical plate by a right-angle plate and bolts to prevent polishing impurities from entering the belt and affecting power transmission.

[0017] The advantages of this utility model compared with the prior art are as follows:

[0018] The clamping mechanism provides stable clamping for the casting grates of our products, significantly improving worker safety. Secondly, this design allows for adjustment of the spacing between the through shafts by rotating the bidirectional lead screw and the height of the adjusting plate by rotating the first screw, thus adapting to the clamping requirements of grates of different sizes. The second screw controls the pressure plate to press down in conjunction with the plate for clamping and fixing. Quickly pushing the fixing frame allows the grate to approach the grinding mechanism rapidly, while rotating the lead screw allows it to slowly approach the polishing mechanism for polishing. The combined use of these two mechanisms is more convenient and safer. Furthermore, the lead screw also helps to keep the polishing position away from workers, further enhancing work safety.

[0019] The protrusions can push the grate plate surface, ensuring that the support plate does not protrude from the other side of the grate while supporting it, so as not to affect the grinding and polishing of the grate. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the surface polishing device for precision sand castings according to this utility model;

[0021] Appendix Figure 2 This is a structural diagram of the fixing frame;

[0022] Appendix Figure 3 This is a schematic diagram of the clamping mechanism. Figure 1 ;

[0023] Appendix Figure 4 This is a schematic diagram of the clamping mechanism. Figure 2 ;

[0024] In the diagram: 1. Vertical plate; 2. Horizontal plate; 21. Third channel; 22. Collection box; 23. Fourth channel; 24. Negative pressure suction pipe; 3. Polishing mechanism; 31. Motor; 32. Abrasive belt; 34. Driven roller; 35. Drive roller; 36. Protective cover; 4. Fixing frame; 42. Bearing plate; 421. Slide plate; 422. Second limit block; 43. Handle;

[0025] 5. Clamping mechanism; 51. First support plate; 511. Second support plate; 512. Third support plate; 513. U-shaped plate; 514. First guide shaft; 515. Third guide shaft; 52. Lead screw; 53. Through shaft; 531. Second guide shaft; 532. Mounting plate; 54. Bidirectional lead screw; 55. First fixing block; 56. Second fixing block; 561. Limiting rod; 562. Pressure plate; 57. Adjusting plate; 571. First screw; 572. Horizontal shaft; 573. Connecting shaft; 58. Adjusting block; 581. Crossbar; 582. Second screw; 59. Telescopic sleeve; 6. Grate; 7. Support plate; 8. Protrusion. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-4 The technical solution of this utility model will be further described in detail below.

[0027] A surface polishing device for precision sand castings includes a polishing mechanism 3, a fixing frame 4, a clamping mechanism 5, and a vertical plate 1 and a horizontal plate 2 fixedly connected to each other. The fixing frame 4 is located on the horizontal plate 2, the clamping mechanism 5 is located on the fixing frame 4, and the polishing mechanism 3 is located on the vertical plate 1. The clamping mechanism 5 clamps the casting grate 6, and then the fixing frame 4 is pushed to move the casting grate 6 on the horizontal plate 2 closer to the polishing mechanism 3. Then the polishing mechanism 3 is activated to polish the casting grate 6.

[0028] The horizontal plate 2 is provided with a third through groove 21 and a fourth through groove 23. The fourth through groove 23 is located at one end of the horizontal plate 2. A collection box 22 is provided below the horizontal plate 2. The collection box 22 is located below the fourth through groove 23 to collect polishing debris.

[0029] Furthermore, one end of the collection box 22 is equipped with a connected negative pressure suction pipe 24, which is connected to a negative pressure suction fan; it can suck up and collect fine particles.

[0030] The bottom end of the fixed frame 4 is provided with a fixed connecting bearing plate 42, and the two ends of the bearing plate 42 are provided with sliding plates 421. The sliding plates 421 are located in the third through groove 21. The sliding plates 421 are provided with a second limiting block 422 fixed by bolts to restrict the bearing plate 42 and prevent it from slipping out of the third through groove 21.

[0031] The mounting bracket 4 is also equipped with a handle 43 for easy control of the mounting bracket 4.

[0032] The polishing mechanism 3 includes a motor 31, a sanding belt 32, a driven roller 34, and a driving roller 35. The motor 31 is fixed to the vertical plate 1 by a motor base. The driven roller 34 and the driving roller 35 are fixed to the vertical plate 1 by bearing seats. The sanding belt 32 is located between the driven roller 34 and the driving roller 35. The shaft ends of the driving roller 35 and the motor 31 are provided with pulleys, and a belt is provided between the pulleys. The motor 31 drives the driving roller 35 to rotate, which in turn drives the driven roller 34 and the sanding belt 32 to rotate.

[0033] The pulley and belt are provided with a protective cover 36. The protective cover 36 is fixed to the vertical plate 1 by a right-angle plate and bolts to prevent polishing impurities from entering the belt and affecting power transmission.

[0034] The clamping mechanism 5 includes a first support plate 51, a lead screw 52, ​​a through shaft 53, a bidirectional lead screw 54, a first fixing block 55, a second fixing block 56, an adjusting plate 57, and an adjusting block 58. The first support plate 51 is provided with a second support plate 511, a third support plate 512, a U-shaped plate 513, and a first guide shaft 514. The first guide shaft 514 is slidably connected to a fixing frame 4 and fixedly connected to a U-shaped frame. The second support plate 511 is provided with a third guide shaft 515. One end of the lead screw 52 is rotatably connected to the first support plate 51, and the lead screw 52 is threadedly connected to the fixing frame 4. The through shaft in the middle section of the bidirectional lead screw 54 is rotatably connected to the third support plate 512. A pair of through shafts 53 are provided on both sides of the first support plate 51, and the through shaft 53 is provided with a second guide shaft 531 and a mounting plate 53. 2. The mounting plate 532 is threadedly connected to the threaded section of the bidirectional lead screw 54, and the second guide shaft 531 is slidably connected to the second support plate 511; the adjusting plate 57 is provided in pairs and is respectively provided on the upper and lower sides of the first support plate 51; the upper adjusting plate 57 is slidably connected to the third guide shaft 515 and is provided with a threaded first screw 571, and the through shaft at one end of the first screw 571 is rotatably connected to the second support plate 511; the adjusting plate 57 is provided with horizontal shafts 572 at both ends; the lower adjusting plate 57 is fixedly connected to the second support plate 511 through the connecting shaft 573; the through shaft 53 is provided with a first fixing block 55 and a second fixing block 56 slidably connected at both ends, and the first fixing block 55 and the second fixing block 56 are provided with a support plate 7 and a protrusion 8; the first fixing block 55 and the second fixing block 56 are slidably connected to the horizontal shaft 572.

[0035] The second fixing block 56 is also provided with a limiting rod 561 and a pressure plate 562. One end of the pressure plate 562 touches the side of the second fixing block 56; the limiting rod 561 touches the side of the pressure plate 562; the adjusting block 58 is located above the adjusting plate 57, and the two ends of the adjusting block 58 are provided with crossbars 581, which are slidably connected to the pressure plate 562; the adjusting block 58 is provided with a threaded second screw 582, and one end of the second screw 582 is rotatably connected to the adjusting plate 57.

[0036] The lead screw 52 is provided with a telescopic sleeve 59 for protecting the lead screw 52 and isolating polishing dust; the threaded section of the bidirectional lead screw 54 and the first screw 571 and the second screw 582 are also provided with telescopic sleeves 59 for isolating dust.

[0037] Rotating the second screw 582 causes the adjusting block 58 to move up and down, coordinating with the support plate 7 to press the ribs of the casting grate 6. The height of the second fixing block 56 and the support plate 7 is adjusted by the first screw 571 to adapt to the clamping spacing of the casting grate 6. Rotating the bidirectional lead screw 54 allows the spacing of the through shaft 53 to be adjusted to adapt to the overall size of the casting grate 6 for easy clamping. The protrusion 8 can push the surface of the grate 6, ensuring that the support plate 7 does not protrude from the other side of the grate 6 while supporting it, so as not to affect the grinding and polishing of the grate. Rotating the lead screw 52 can push the grate 6 closer to and further away from the polishing mechanism.

[0038] A surface polishing device for precision sand castings, the working process of which is as follows:

[0039] In this example, the casting is the company's product grate 6. The ribs of the grate 6 are supported by the support plate 7 on the first fixed block 55 in the clamping mechanism 5. Then, the first screw 571 is rotated to control the height of the adjusting plate 57, so that when the support plate 7 on the second fixed block 56 is clamped, the pressure plate 562 is controlled by rotating the second screw 582 to press the ribs in conjunction with the support plate 7 to achieve clamping and fixation. Then, the fixing frame 4 is pushed to make the grate 6 quickly approach the abrasive belt 32. Then, the screw 52 is rotated to control the grate 6 to slowly approach the abrasive belt 32 for friction and polishing. After polishing one side is completed, the fixing frame 4 is retracted and reset, and the other side of the grate 6 is clamped for polishing. For the dust generated during the polishing process, dust suction hoods of the prior art are provided on both sides and the top of the abrasive belt used for polishing. The dust is sucked up by negative pressure to prevent dust overflow. The dust removal technology during the polishing process is a conventional technology of the prior art, which will not be described in detail here.

[0040] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, the fixed connection methods include, but are not limited to, welding and bolting; the movable connection methods include, but are not limited to, sliding connection, rotating connection, and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0042] In summary, the electronic or electrical components, including but not limited to motors, are existing components that are custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this invention.

[0043] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A surface polishing device for precision sand castings, comprising a polishing mechanism, a fixing frame, a clamping mechanism, and vertical and horizontal plates fixedly connected to each other; the fixing frame is mounted on the horizontal plate, the clamping mechanism is mounted on the fixing frame, and the polishing mechanism is mounted on the vertical plate; the clamping mechanism clamps the casting grate, then the fixing frame is pushed to move the casting grate on the horizontal plate closer to the polishing mechanism, and then the polishing mechanism is activated to polish the casting grate; Its features The clamping mechanism includes a first support plate, a lead screw, a through shaft, a bidirectional lead screw, a first fixing block, a second fixing block, an adjusting plate, and an adjusting block. The first support plate is provided with a second support plate, a third support plate, a U-shaped plate, and a first guide shaft. The first guide shaft is slidably connected to a fixing frame and fixedly connected to a U-shaped frame. The second support plate is provided with a third guide shaft. One end of the lead screw is rotatably connected to the first support plate, and the lead screw is threadedly connected to the fixing frame. The through shaft in the middle section of the bidirectional lead screw is rotatably connected to the third support plate. A pair of through shafts are provided, respectively located on both sides of the first support plate. Each through shaft is provided with a second guide shaft and a mounting plate. The mounting plate is threaded to the threaded section of the bidirectional lead screw, and the second guide shaft is slidably connected to the second support plate; the adjusting plate is provided in pairs and is respectively located on the upper and lower sides of the first support plate; the upper adjusting plate is slidably connected to the third guide shaft and is provided with a threaded first screw, the through shaft at one end of the first screw is rotatably connected to the second support plate, and the adjusting plate is provided with horizontal shafts at both ends; the lower adjusting plate is fixedly connected to the second support plate through a connecting shaft; the through shaft is provided with a first fixing block and a second fixing block that are slidably connected at both ends, and the first fixing block and the second fixing block are provided with a support plate and a protrusion; the first fixing block and the second fixing block are slidably connected to the horizontal shaft; The second fixing block is also provided with a limiting rod and a pressure plate. One end of the pressure plate touches the side of the second fixing block; the limiting rod touches the side of the pressure plate; the adjusting block is located above the adjusting plate, and the two ends of the adjusting block are provided with crossbars, which are slidably connected to the pressure plate; the adjusting block is provided with a threaded second screw, and one end of the second screw is rotatably connected to the adjusting plate.

2. The surface polishing device for precision sand castings according to claim 1, characterized in that... The lead screw is equipped with a telescopic sleeve to protect the lead screw and isolate polishing dust; the threaded section of the bidirectional lead screw and the first and second screws are also equipped with telescopic sleeves to isolate dust.

3. The surface polishing device for precision sand castings according to claim 1, characterized in that... The horizontal plate is provided with a third through groove and a fourth through groove. The fourth through groove is located at one end of the horizontal plate, and a collection box is provided below the horizontal plate. The collection box is located below the fourth through groove to collect polishing debris. One end of the collection box is equipped with a connected negative pressure suction pipe, which is connected to a negative pressure suction fan; it can suck up and collect fine particles.

4. The surface polishing device for precision sand castings according to claim 1, characterized in that... The bottom end of the fixed frame is provided with a fixed connecting bearing plate, and the two ends of the bearing plate are provided with sliding plates. The sliding plates are located in the third through groove. The sliding plates are provided with a second limiting block fixed by bolts to restrict the bearing plate and prevent it from slipping out of the third through groove. The mounting bracket is also equipped with a handle for easy control.

5. The surface polishing device for precision sand castings according to claim 1, characterized in that... The polishing mechanism includes a motor, a grinding belt, a driven roller, and a drive roller. The motor is fixed to the vertical plate by a motor mount, and the driven roller and the drive roller are fixed to the vertical plate by bearing mounts. The grinding belt is located between the driven roller and the drive roller. The drive roller and the motor shaft are equipped with pulleys, and a belt is installed between the pulleys.

6. The surface polishing device for precision sand castings according to claim 5, characterized in that... The pulley and belt are equipped with a protective cover, which is fixed to the vertical plate by a right-angle plate and bolts to prevent polishing impurities from entering the belt and affecting power transmission.

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