A device and method for processing a casting blank

Abstract

The application provides a kind of casting blank processing device, comprising: flat main turntable, be fixed in the vertical sand blasting cylinder of main turntable top, bottom end is connected with the top surface of main turntable rotation, side wall is equipped with multiple rows of sand blasting mouth, sand supply pipe is connected to the top end of sand blasting cylinder, all are arranged in main turntable, located in the periphery of sand blasting cylinder and are evenly distributed along the circumference of sand blasting cylinder, multiple load units for carrying casting blank respectively, and drive unit for driving each load unit revolves around sand blasting cylinder while rotating and reciprocating lifting in the process of revolution and rotation.The application also provides a kind of casting blank processing method, which uses the above-mentioned processing device to implement sand blasting treatment on casting blank.The application can simultaneously implement sand blasting treatment on multiple casting blanks;Also can make each casting blank revolves around sand blasting cylinder while rotating and reciprocating lifting in the process of revolution and rotation during sand blasting treatment;Further can improve the efficiency and effect of implementing sand blasting treatment on casting blank.

Description

Technical Field

[0001] This invention relates to an apparatus and method for processing casting blanks. Background Technology

[0002] During the production of casting blanks, sandblasting is required. Currently, it is not possible to sandblast multiple casting blanks simultaneously in batches. Generally, multiple casting blanks are sandblasted sequentially. The efficiency and effectiveness of sandblasting casting blanks need to be improved. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a processing device for casting blanks, comprising: a horizontally placed main turntable; a vertically placed sandblasting cylinder fixed directly above the main turntable and coaxial with it, with its bottom end rotatably connected to the top surface of the main turntable and having multiple rows of sandblasting nozzles on its side walls; a sand supply pipe connected to the top of the sandblasting cylinder; multiple material-carrying units, all passing through the main turntable, located around the sandblasting cylinder and evenly distributed along its circumference, used to carry the casting blanks; and a drive unit that drives each material-carrying unit to revolve around the sandblasting cylinder while rotating on its own axis and to reciprocate up and down during the revolution and rotation.

[0004] Preferably, the material-carrying unit includes: a vertical rotating shaft penetrating the main turntable (the main turntable has a shaft hole for the rotating shaft to pass through vertically and slide vertically with the rotating shaft), a flat slave turntable fixed to the top of the rotating shaft (the slave turntable is coaxial with the rotating shaft), a clamp fixed to the top surface of the slave turntable for holding the casting blank, an upper convex plate and a lower convex plate fixed to the rotating shaft and both located below the main turntable (the upper convex plate and the lower convex plate are coaxial with the rotating shaft), a flat sliding gear (the rotating shaft is provided with a spline) fitted on the rotating shaft, located between the upper convex plate and the lower convex plate, and driving the rotating shaft to rotate through a spline, a vertical upper spring fitted around the rotating shaft, with its top end fixed to the bottom surface of the upper convex plate and its bottom end fixed to the top surface of the sliding gear, and a vertical lower spring fitted around the rotating shaft, with its bottom end fixed to the top surface of the lower convex plate and its top end fixed to the bottom surface of the sliding gear.

[0005] Preferably, the drive unit includes: a motor whose output shaft is fixedly connected to the bottom surface of the main turntable and drives the main turntable to rotate; a flat main gear (the main gear and the main turntable are coaxial) fixedly connected to the bottom end of the motor, located between each sliding gear and meshing with each sliding gear; a fixed column whose top end is fixedly connected to the bottom surface of the main gear; and a flat circular guide rail (the circular guide rail and the main turntable are coaxial) located directly below each rotating shaft and whose top surface supports the bottom end of each rotating shaft. The top surface of the circular guide rail is provided with a high-low structure for driving the bottom end of each rotating shaft to rise and fall when the bottom end of each rotating shaft moves along the circumference of the circular guide rail.

[0006] Preferably, the bottom surface of the main turntable is rotatably connected to the top of the cylindrical shell, and the main turntable is supported by the cylindrical shell; the components of the material carrying unit located below the main turntable (including the section of the rotating shaft located below the main turntable, the upper cam, the lower cam, the spline, the sliding gear, the upper spring, and the lower spring) and the drive unit (including the fixed column, the main gear, the motor, and the circular guide rail) are all located in the cylindrical shell; and the bottom end of the fixed column and the bottom surface of the circular guide rail are respectively fixed to the inner bottom wall of the cylindrical shell.

[0007] Preferably, the bottom end of the rotating shaft is hemispherical.

[0008] Preferably, the material-carrying unit further includes: a vertical telescopic sleeve fitted around the outer periphery of the rotating shaft, with its top end rotatably connected to the bottom surface of the turntable and its bottom end fixedly connected to the top surface of the main turntable.

[0009] Preferably, the top end of the telescopic sleeve is rotatably connected to the bottom surface of the turntable via a flat second bearing.

[0010] Preferably, the bottom end of the sandblasting cylinder is rotatably connected to the top surface of the main turntable via a horizontally placed first bearing; the bottom surface of the main turntable is rotatably connected to the top end of the cylinder shell via a horizontally placed third bearing.

[0011] Preferably, the multiple rows of sandblasting nozzles on the side wall of the sandblasting cylinder are evenly distributed along the circumference of the sandblasting cylinder, the sandblasting nozzles in the same row are equally spaced, and the sandblasting nozzles in adjacent rows are staggered.

[0012] The present invention also provides a method for processing casting blanks, wherein the casting blanks are subjected to sandblasting treatment using the above-mentioned processing device, comprising the following steps: The casting blanks that need to be sandblasted are placed on the turntables of each material loading unit, and the casting blanks are clamped and fixed by the clamps on the turntables. The sand supply pipe supplies abrasive for sandblasting to the sandblasting cylinder. Multiple rows of sandblasting nozzles on the side wall of the sandblasting cylinder spray abrasive onto the casting blanks on each material loading unit, thereby achieving sandblasting treatment on the casting blanks on each material loading unit. During the sandblasting process, the motor drives the main turntable to rotate, which in turn drives the rotating shafts of each material-carrying unit to rotate. This allows each material-carrying unit's slave turntable to revolve around the sandblasting cylinder, and the casting blanks on each material-carrying unit also revolve around the sandblasting cylinder (the sandblasting cylinder is fixed and does not rotate). As the slave turntables of each material-carrying unit revolve around the sandblasting cylinder, the sliding gears of each material-carrying unit also revolve around the main gear (the main gear is fixed and does not rotate). The main gear causes the sliding gears of each material-carrying unit to rotate on their own axis, which in turn drives the rotating shaft to rotate via splines. This results in each material-carrying unit's slave turntable simultaneously revolving around the sandblasting cylinder and rotating on its own axis, while the casting blanks on each material-carrying unit also revolve around the sandblasting cylinder. The sandblasting cylinder revolves around the main turntable while rotating on its own axis. As each material-carrying unit rotates with the main turntable, the bottom of each shaft moves circumferentially along the top surface of the circular guide rail. The undulating structure of the top surface of the circular guide rail drives the bottom of each shaft to reciprocate, causing the rotating turntable of each material-carrying unit to reciprocate during its revolution and rotation. The casting blanks on each material-carrying unit also reciprocate during this process. In other words, during sandblasting, the rotating turntable of each material-carrying unit revolves around the sandblasting cylinder while rotating on its own axis, and reciprocates during this process. The casting blanks on each material-carrying unit also reciprocate during this process. After the sandblasting process is completed, the sand supply pipe stops supplying abrasive for sandblasting to the sandblasting cylinder, and the sandblasted casting blanks are removed from the fixtures of each material-carrying unit.

[0013] The advantages and beneficial effects of the present invention are as follows: it provides a device and method for processing casting blanks; the present invention can simultaneously perform sandblasting treatment on multiple casting blanks; and during the sandblasting process, each casting blank can revolve around the sandblasting cylinder while rotating on its own axis, and reciprocate up and down during the revolution and rotation; thereby improving the efficiency and effect of sandblasting treatment on casting blanks.

[0014] This invention has the following characteristics: 1) During the sandblasting process of this invention, the motor drives the main turntable to rotate, which in turn drives the rotating shafts of each material-carrying unit to rotate, so that the slave turntables of each material-carrying unit revolve around the sandblasting cylinder, and the casting blanks on each material-carrying unit also revolve around the sandblasting cylinder (the sandblasting cylinder is fixed and does not rotate); during the process of the slave turntables of each material-carrying unit revolving around the sandblasting cylinder, the sliding gears of each material-carrying unit also revolve around the main gear (the main gear is fixed and does not rotate), and the main gear causes the sliding gears of each material-carrying unit to rotate on their own axis, which in turn drives the rotating shaft to rotate on its own axis through the spline, so that the slave turntables of each material-carrying unit revolve around the sandblasting cylinder and rotate on their own axis at the same time, and the casting blanks on each material-carrying unit also revolve around the sandblasting cylinder and rotate on their own axis at the same time; and As the rotating shafts of each material-carrying unit rotate with the main turntable, the bottom ends of each shaft move circumferentially along the top surface of the circular guide rail. The undulating structure of the top surface of the circular guide rail drives the bottom ends of each shaft to reciprocate and rise, thus enabling the rotating disks of each material-carrying unit to reciprocate and rise during their revolution and rotation. The casting blanks on each material-carrying unit also reciprocate and rise during their revolution and rotation. In other words, during the sandblasting process, the rotating disks of each material-carrying unit revolve around the sandblasting cylinder while rotating on their own axis, and reciprocate and rise during this process. The casting blanks on each material-carrying unit also revolve around the sandblasting cylinder while rotating on their own axis, and reciprocate and rise during this process. This improves the efficiency and effectiveness of sandblasting the casting blanks.

[0015] 2) During the sandblasting process of this invention, the casting blanks on each material-carrying unit revolve around the sandblasting cylinder while rotating on their own axis, and reciprocate up and down during the revolving and rotating process. This allows multiple rows of sandblasting nozzles on the side wall of the sandblasting cylinder to be evenly distributed along the circumference of the sandblasting cylinder. The sandblasting nozzles in the same row are set at equal intervals, and the sandblasting nozzles in adjacent rows are staggered. This can further improve the efficiency and effect of sandblasting the casting blanks.

[0016] 3) In this invention, the sliding gear is set between the upper cam and the lower cam, and a spline is set on the rotating shaft so that the sliding gear can drive the rotating shaft to rotate through the spline; and an upper spring that is always in a compressed state is set between the upper cam and the sliding gear, and a lower spring that is always in a compressed state is set between the lower cam and the sliding gear; in this way, the sliding gear and the main gear are always meshed, ensuring that the rotation of each material carrying unit is not interrupted by reciprocating lifting and lowering.

[0017] 4) During the sandblasting process of this invention, based on the fact that each material-carrying unit revolves around the sandblasting cylinder on one side of the rotating disk and rotates on its own axis while reciprocating up and down during the revolution and rotation, a telescopic sleeve is fitted around the section of the rotating shaft located above the main rotating disk. The top of the telescopic sleeve is rotatably connected to the bottom surface of the rotating disk through a flat second bearing, so that the bottom end of the telescopic sleeve is fixed to the top surface of the main rotating disk. This ensures that the section of the rotating shaft located above the main rotating disk is always surrounded by the telescopic sleeve, which can prevent the abrasive during sandblasting from adhering to the section of the rotating shaft located above the main rotating disk. This avoids and greatly reduces the adverse effects on the reciprocating up and down of the rotating shaft and the rotating disk caused by the abrasive adhering to the section of the rotating shaft located above the main rotating disk. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a device for processing casting blanks. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] The specific technical solution of this invention is as follows: This invention provides a method for processing casting blank 7, which involves using a processing device to perform sandblasting treatment on the casting blank 7; like Figure 1 As shown, the processing device includes: a horizontal main turntable 1, a vertical sandblasting cylinder 23 fixed above the main turntable 1 and coaxial with the main turntable 1, with its bottom end rotatably connected to the top surface of the main turntable 1 via a horizontal first bearing 21, and with multiple rows of sandblasting nozzles 22 on its side wall, a sand supply pipe 24 connected to the top of the sandblasting cylinder 23, all passing through the main turntable 1, located around the sandblasting cylinder 23 and evenly distributed along the circumference of the sandblasting cylinder 23, and used to carry the casting blank 7, and a drive unit that drives each material carrying unit to revolve around the sandblasting cylinder 23 while rotating on its own axis and to reciprocate up and down during the revolution and rotation. Multiple rows of sandblasting nozzles 22 on the side wall of the sandblasting cylinder 23 are evenly distributed around the circumference of the sandblasting cylinder 23. The sandblasting nozzles 22 in the same row are equally spaced, and the sandblasting nozzles 22 in adjacent rows are staggered. The material-carrying unit includes: a vertical rotating shaft 31 penetrating the main turntable 1 (the main turntable 1 has a shaft hole for the rotating shaft 31 to pass through vertically and slide vertically with the rotating shaft 31), a horizontally mounted slave turntable 32 fixed to the top of the rotating shaft 31 (the slave turntable 32 is coaxial with the rotating shaft 31), a clamp 33 fixed to the top surface of the slave turntable 32 for holding the casting blank 7, a vertically mounted telescopic sleeve 35 fitted around the rotating shaft 31, rotatably connected to the bottom surface of the slave turntable 32 at its top via a horizontally mounted second bearing 34, and fixedly connected to the top surface of the main turntable 1 at its bottom, and an upper convex plate 41 and a lower convex plate 42 fixed to the rotating shaft 31 and both located below the main turntable 1. The rotating shaft 31 is equipped with a horizontal sliding gear 44 (with a spline 43 on the rotating shaft 31), which is mounted on the rotating shaft 31 between the upper and lower convex disks 41 and drives the rotating shaft 31 to rotate via a spline 43. A vertical upper spring 45 (always in a compressed state) is mounted on the outer periphery of the rotating shaft 31, with its top end fixed to the bottom surface of the upper convex disk 41 and its bottom end fixed to the top surface of the sliding gear 44. A vertical lower spring 46 (always in a compressed state) is also mounted on the outer periphery of the rotating shaft 31, with its bottom end fixed to the top surface of the lower convex disk 42 and its top end fixed to the bottom surface of the sliding gear 44. The bottom end of the rotating shaft 31 is hemispherical. The drive unit includes: a motor 51 whose output shaft is fixedly connected to the bottom surface of the main turntable 1 and drives the main turntable 1 to rotate; a flat main gear 52 (the main gear 52 is coaxial with the main turntable 1) fixedly connected to the bottom end of the motor 51, located between each sliding gear 44 and meshing with each sliding gear 44 respectively; a fixed column 53 whose top end is fixedly connected to the bottom surface of the main gear 52; and a flat circular guide rail 54 (the circular guide rail 54 is coaxial with the main turntable 1) located directly below each rotating shaft 31 and whose top surface supports the bottom end of each rotating shaft 31. The top surface of the circular guide rail 54 is provided with a high-low undulation structure 55 for driving the bottom end of each rotating shaft 31 to rise and fall when the bottom end of each rotating shaft 31 moves along the circumference of the circular guide rail 54 on the top surface of the circular guide rail 54. The bottom surface of the main turntable 1 is rotatably connected to the top of the cylindrical shell 62 via a flat third bearing 61, and the main turntable 1 is supported by the cylindrical shell 62; the components of the material carrying unit located below the main turntable 1 (including the section of the rotating shaft 31 located below the main turntable 1, the upper cam 41, the lower cam 42, the spline 43, the sliding gear 44, the upper spring 45, and the lower spring 46) and the drive unit (including the fixed column 53, the main gear 52, the motor 51, and the circular guide rail 54) are all located in the cylindrical shell 62; and the bottom end of the fixed column 53 and the bottom surface of the circular guide rail 54 are respectively fixed to the inner bottom wall of the cylindrical shell 62; The process of sandblasting the casting blank 7 using the processing device includes the following steps: The casting blanks 7 to be sandblasted are placed on the turntables 32 of each material loading unit, and the casting blanks 7 are clamped and fixed by the clamps 33 on the turntables 32. The sand supply pipe 24 supplies abrasive for sandblasting to the sandblasting cylinder 23. The multiple rows of sandblasting nozzles 22 on the side wall of the sandblasting cylinder 23 spray abrasive onto the casting blanks 7 on each material loading unit, thereby realizing sandblasting of the casting blanks 7 on each material loading unit. During the sandblasting process, the motor 51 drives the main turntable 1 to rotate, which in turn drives the rotating shafts 31 of each material-carrying unit to rotate. This allows the slave turntables 32 of each material-carrying unit to revolve around the sandblasting cylinder 23, and the casting blanks 7 on each material-carrying unit also revolve around the sandblasting cylinder 23 (the sandblasting cylinder 23 is fixed and does not rotate). As the slave turntables 32 of each material-carrying unit revolve around the sandblasting cylinder 23, the sliding gears 44 of each material-carrying unit also revolve around the main gear 52 (the main gear 52 is fixed and does not rotate). The main gear 52 causes the sliding gears 44 of each material-carrying unit to rotate on their own axis, which in turn drives the rotating shafts 31 to rotate via the spline 43. This allows the slave turntables 32 of each material-carrying unit to revolve around the sandblasting cylinder 23 while simultaneously rotating on their own axis, and the casting blanks 7 on each material-carrying unit also revolve around the sandblasting cylinder 23. The material 7 also revolves around the sandblasting cylinder 23 while rotating on its own axis; and as the rotating shaft 31 of each material-carrying unit rotates with the main turntable 1, the bottom end of each rotating shaft 31 moves circumferentially along the top surface of the circular guide rail 54. The undulating structure 55 of the top surface of the circular guide rail 54 drives the bottom end of each rotating shaft 31 to reciprocate up and down, realizing that the slave turntable 32 of each material-carrying unit reciprocates up and down during the revolution and rotation, and the casting blank 7 on each material-carrying unit also reciprocates up and down during the revolution and rotation; that is, during the sandblasting process, the slave turntable 32 of each material-carrying unit revolves around the sandblasting cylinder 23 while rotating on its own axis and reciprocates up and down during the revolution and rotation, and the casting blank 7 on each material-carrying unit also reciprocates up and down during the revolution and rotation. After the sandblasting process is completed, the sand supply pipe 24 stops supplying abrasive for sandblasting to the sandblasting cylinder 23, and the sandblasted casting blank 7 is removed from the clamp 33 of each material carrying unit.

[0021] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for processing casting blanks, characterized in that, include: A horizontal main turntable, a vertically mounted sandblasting cylinder fixed directly above the main turntable with its bottom end rotatably connected to the top surface of the main turntable and having multiple rows of sandblasting nozzles on its side walls, and a sand supply pipe connected to the top of the sandblasting cylinder, all pass through the main turntable, are located around the sandblasting cylinder and are evenly distributed along the circumference of the sandblasting cylinder, and are used to carry multiple material-carrying units for carrying casting blanks, as well as a drive unit that drives each material-carrying unit to revolve around the sandblasting cylinder while rotating on its own axis and reciprocating up and down during the revolution and rotation.

2. The apparatus for processing casting blanks according to claim 1, characterized in that, The material-carrying unit includes: a vertical rotating shaft passing through the main turntable; a horizontally mounted slave turntable fixed to the top of the rotating shaft; a clamp fixed to the top surface of the slave turntable for holding the casting blank; an upper cam and a lower cam fixed to the rotating shaft and both located below the main turntable; a sliding gear mounted on the rotating shaft, located between the upper and lower cams, and driving the rotating shaft to rotate via a spline; an upper spring mounted on the periphery of the rotating shaft, with its top end fixed to the bottom surface of the upper cam and its bottom end fixed to the top surface of the sliding gear; and a lower spring mounted on the periphery of the rotating shaft, with its bottom end fixed to the top surface of the lower cam and its top end fixed to the bottom surface of the sliding gear.

3. The apparatus for processing casting blanks according to claim 2, characterized in that, The drive unit includes: a motor whose output shaft is fixedly connected to the bottom surface of the main turntable and drives the main turntable to rotate; a main gear fixedly connected to the bottom end of the motor and meshing with each sliding gear; a fixed column whose top end is fixedly connected to the bottom surface of the main gear; and a flat circular guide rail whose top surface supports the bottom end of each rotating shaft. The top surface of the circular guide rail is provided with a high and low undulating structure for driving the bottom end of each rotating shaft to rise and fall when the bottom end of each rotating shaft moves along the circumference of the circular guide rail.

4. The apparatus for processing casting blanks according to claim 3, characterized in that, The bottom surface of the main turntable is rotatably connected to the top of the cylinder shell; the material loading unit and the drive unit located below the main turntable are both located in the cylinder shell; and the bottom end of the fixed column and the bottom surface of the circular guide rail are respectively fixed to the inner bottom wall of the cylinder shell.

5. The apparatus for processing casting blanks according to claim 4, characterized in that, The bottom of the rotating shaft is hemispherical.

6. The apparatus for processing casting blanks according to claim 5, characterized in that, The material loading unit also includes a vertical telescopic sleeve that is fitted around the rotating shaft, with its top end rotatably connected to the bottom surface of the turntable and its bottom end fixed to the top surface of the main turntable.

7. The apparatus for processing casting blanks according to claim 6, characterized in that, The top of the telescopic sleeve is rotatably connected to the bottom of the turntable via a flat second bearing.

8. The apparatus for processing casting blanks according to claim 7, characterized in that, The bottom end of the sandblasting cylinder is rotatably connected to the top surface of the main turntable via a horizontal first bearing; the bottom surface of the main turntable is rotatably connected to the top end of the cylinder shell via a horizontal third bearing.

9. The apparatus for processing casting blanks according to claim 8, characterized in that, Multiple rows of sandblasting nozzles on the side wall of the sandblasting cylinder are evenly distributed along the circumference of the sandblasting cylinder. The sandblasting nozzles in the same row are arranged at equal intervals, and the sandblasting nozzles in adjacent rows are staggered.

10. A method for processing casting blanks, characterized in that, The sandblasting treatment of the casting blank using the processing apparatus of claim 9 includes the following steps: The casting blanks that need to be sandblasted are placed on the turntables of each material loading unit, and the casting blanks are clamped and fixed by the clamps on the turntables. The sand supply pipe supplies abrasive for sandblasting to the sandblasting cylinder. Multiple rows of sandblasting nozzles on the side wall of the sandblasting cylinder spray abrasive onto the casting blanks on each material-carrying unit, thereby achieving sandblasting treatment on the casting blanks on each material-carrying unit. During the sandblasting process, the motor drives the main turntable to rotate, which in turn drives the rotating shafts of each material-carrying unit to rotate. This allows the slave turntables of each material-carrying unit to revolve around the sandblasting cylinder, and the casting blanks on each material-carrying unit also revolve around the sandblasting cylinder. As the slave turntables of each material-carrying unit revolve around the sandblasting cylinder, the sliding gears of each material-carrying unit also revolve around the main gear. The main gear causes the sliding gears of each material-carrying unit to rotate on their own axis, which in turn drives the rotating shaft to rotate via splines. This results in each material-carrying unit's slave turntable simultaneously revolving around the sandblasting cylinder and rotating on its own axis, with the casting blanks on each material-carrying unit... The casting blanks also revolve around the sandblasting cylinder while rotating on their own axis; and as the rotating shafts of each material-carrying unit rotate with the main turntable, the bottom ends of each shaft move circumferentially along the top surface of the circular guide rail. The undulating structure of the top surface of the circular guide rail drives the bottom ends of each shaft to reciprocate and rise, thus realizing the reciprocating and rising of each material-carrying unit from the turntable during the revolution and rotation, and the casting blanks on each material-carrying unit also reciprocate and rise during the revolution and rotation; that is, during the sandblasting process, the casting blanks on each material-carrying unit revolve around the sandblasting cylinder while rotating on their own axis and reciprocate and rise during the revolution and rotation. After the sandblasting process is completed, the sand supply pipe stops supplying abrasive for sandblasting to the sandblasting cylinder, and the sandblasted casting blanks are removed from the fixtures of each material-carrying unit.

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