Automatic sand blasting rust removal device applied to special-shaped inner hole of cylindrical magnetic steel

Abstract

The utility model relates to cylindrical magnetic steel processing technical field especially for the sand blasting rust removal automation device for the application in the cylindrical magnetic steel special-shaped inner hole, including the chassis, be provided with the rust removal mechanism on the chassis and be used for rust removal to the cylindrical magnetic steel, and the rust removal mechanism includes: main part subassembly, including the protection cabin fixed in the top of the chassis, the sand blasting machine is installed in the rear end of protection cabin, positioning subassembly includes the base fixed in the inside of protection cabin, the base upper end rotatory mounting has the carousel, the periphery rotatory mounting has a plurality of work stations of the circular arrangement in the carousel inside, the work station upper end is fixed with the frock, the work station lower end is fixed with the driven pulley, the inside front end fixed with the cross seat in the protection cabin and located the base front, and the cross seat top left and right two ends all are fixed with the riser, through the compound movement that workpiece autorotation is combined with the spray head swing, realizes the dead angleless sand blasting of special-shaped inner hole, and its multi-station carousel design ensures the continuous automation production to complete the rust removal efficiently and evenly.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical magnet processing technology, specifically to an automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets. Background Technology

[0002] Cylindrical magnets, as key functional components, are widely used in various precision equipment and high-efficiency motors in modern industry; their internal irregular-shaped internal hole structure is crucial for meeting specific magnetic circuit designs, reducing overall weight, or realizing cooling channels.

[0003] According to CN217992136U, a cylindrical magnet grinding device is disclosed. This technology discloses a technical solution including: "a base, on which a grinding unit for grinding the shoulder of a cylindrical magnet is provided, the grinding unit including a clamping component for holding the cylindrical magnet, a support and a vibratory feeder for conveying the cylindrical magnet and adjusting its posture so that its length direction is consistent with the conveying direction are fixedly provided on the base, a guide rail arranged obliquely downward is connected to the discharge port at the upper end of the vibratory feeder, a slide block is slidably provided on the support, and a positioning groove with the slot facing upward is provided on the slide block. One end of the positioning groove is provided with an opening that connects to the lower end of the guide rail. The position adjustment and conveying of small magnet parts are completed by the vibratory feeder, and then the small magnet parts are slid from the guide rail into the positioning groove. Then, the positioning groove is connected to the small magnet parts and conveyed together to the position of the clamping component by the slide block."

[0004] Since irregularly shaped internal holes often contain complex geometric features such as steps and grooves, the abrasive flow cannot effectively cover all areas of these complex surfaces when using traditional fixed spray guns or sandblasting equipment with a single motion mode. This results in incomplete and uneven rust removal in some areas, making it difficult to meet the process quality requirements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets. Through a combination of workpiece rotation and nozzle oscillation, it achieves sandblasting of irregularly shaped inner holes without dead angles. Its multi-station turntable design ensures continuous automated production, thereby efficiently and uniformly completing rust removal.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets, comprising a base frame, on which a rust removal mechanism is mounted for rust removal of the cylindrical magnets. The rust removal mechanism includes:

[0007] The main components include a protective cabin fixed to the top of the base frame, with a sandblasting machine installed at the rear of the protective cabin;

[0008] The positioning assembly includes a base fixed inside the protective chamber, a turntable rotatably mounted on the upper end of the base, several circumferentially arranged workstations rotatably mounted on the inner outer edge of the turntable, a tooling fixed on the upper end of each workstation, a driven pulley fixed on the lower end of each workstation, a horizontal seat fixed at the front end inside the protective chamber and located in front of the base, and upright seats fixed at both the left and right ends of the top of the horizontal seat, a driving pulley rotatably mounted inside the upright seat, and a belt installed between the two driving pulleys and several driven pulleys;

[0009] The sandblasting assembly is located inside the protective chamber and is used for sandblasting cylindrical magnets.

[0010] Preferably, the positioning component includes a first servo motor mounted on the top of the protective cabin, the output end of the first servo motor being fixed to a first shaft and fixed to a turntable, and a second servo motor mounted on the top of the base, the output end of the second servo motor being fixed to a second shaft and fixed to one of the drive pulleys.

[0011] Preferably, the sandblasting assembly includes a crossbeam fixed to the rear end inside the protective chamber. Uprights are fixed to the top left and right ends of the crossbeam. Rotating shafts are rotatably installed between the upper and lower sides of the crossbeams at both ends. Several nozzles are fixed on the rotating shafts. Flexible hoses are fixed between the rear ends of the nozzles and the sandblasting machine. A rocker arm is fixed to the right end of the upper rotating shaft. A third servo motor is installed at the right end of the protective chamber. A circular plate is fixed to the output end of the third servo motor. A support rod is pivotally connected to the outer edge of the circular plate, and the upper end of the support rod is pivotally connected to the rear end of the rocker arm.

[0012] Preferably, the sandblasting assembly further includes an extension arm fixed to the right end of the rotating shaft, and a connecting rod is pivotally connected between the front ends of the upper and lower extension arms.

[0013] Preferably, the main component further includes a front hatch hinged to the front end of the protective cabin, and a side hatch pivotally connected to the right end of the protective cabin.

[0014] Preferably, the main component further includes a dust removal system located at the upper end of the protective chamber and a recycling system located at the lower end of the protective chamber.

[0015] Beneficial effects

[0016] This invention provides an automated sandblasting and rust removal device for irregularly shaped internal holes of cylindrical magnets. Compared with the prior art, it has the following advantages:

[0017] 1. By fixing the cylindrical magnet in the fixture, the first servo motor drives the first shaft to rotate, which in turn drives the turntable to perform intermittent indexing rotation. This revolution motion enables the workpieces to be sequentially fed into the front of the sandblasting assembly, thus forming a continuous production cycle. At the same time, the output end of the second servo motor drives the second shaft to rotate, which drives the active pulley to rotate. The power is synchronously transmitted to the driven pulleys below all the workpieces through the belt. Finally, the driven pulleys drive the fixture and the cylindrical magnet on it to rotate at a constant speed around their own axis through the workpieces. Through the combined motion of revolution and rotation, the fixture fixed in the sandblasting assembly can form a complex scanning trajectory relative to the irregular inner hole of the magnet, ensuring that the abrasive flow can cover every surface of the inner hole without dead angles.

[0018] 2. The output of the third servo motor drives the circular plate to rotate at a constant speed. The support rod pivotally connected to the outer edge of the circular plate moves accordingly, which in turn pushes the rocker arm fixed to the upper rotating shaft to swing back and forth. Finally, it drives several nozzles connected to the upper and lower sides through the rotating shaft to swing synchronously within a certain angle. This swinging spraying mode can effectively solve the problem of cleaning dead corners that are easily caused by complex structures such as steps and grooves in the inner hole, ensuring the uniformity and thoroughness of rust removal. When the upper rotating shaft swings, the extension arm fixed to the right end of the rotating shaft moves accordingly, and then transmits the power to the extension arm on the lower rotating shaft through the pivotally connected connecting rod, forcing the lower rotating shaft to swing synchronously in the opposite direction to the upper one. Symmetrical swinging can simultaneously cover areas of different depths or complex surfaces in the inner hole of the cylindrical magnet, which multiplies the efficiency and coverage uniformity of sandblasting operations and completely eliminates the visual blind spots and processing dead corners that may exist in unidirectional swinging. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the sandblasting assembly in this utility model;

[0021] Figure 3 This is a schematic diagram of the upper end of the positioning component in this utility model;

[0022] Figure 4 This is a schematic diagram of the lower end of the positioning component in this utility model.

[0023] In the diagram: 1. Base frame; 2. Rust removal mechanism; 21. Main component; 211. Protective chamber; 212. Sandblasting machine; 213. Front hatch; 214. Side hatch; 215. Dust removal system; 216. Recovery system; 22. Positioning component; 221. Base; 222. Turntable; 223. Workstation; 224. Tooling; 225. Driven pulley; 226. Horizontal seat; 227. Vertical seat; 228. Driven pulley; 2 29. Belt; 2210. First servo motor; 2211. First shaft; 2212. Second servo motor; 2213. Second shaft; 23. Sandblasting assembly; 231. Cross frame; 232. Vertical frame; 233. Rotating shaft; 234. Nozzle; 235. Hose; 236. Rocker arm; 237. Third servo motor; 238. Circular plate; 239. Support rod; 2310. Extension arm; 2311. Connecting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: an automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets, including a base frame 1, on which a rust removal mechanism 2 is installed for rust removal of the cylindrical magnets. The rust removal mechanism 2 includes:

[0026] The main component 21 includes a protective chamber 211 fixed to the top of the base frame 1, and a sandblasting machine 212 is installed at the rear end of the protective chamber 211;

[0027] The positioning component 22 includes a base 221 fixed inside the protective chamber 211. A turntable 222 is rotatably mounted on the upper end of the base 221. Several workstations 223 arranged in a circle are rotatably mounted on the outer edge of the turntable 222. A tooling 224 is fixed on the upper end of the workstation 223. A driven pulley 225 is fixed on the lower end of the workstation 223. A horizontal seat 226 is fixed at the front end of the protective chamber 211 and located in front of the base 221. A vertical seat 227 is fixed at both the left and right ends of the top of the horizontal seat 226. A driving pulley 228 is rotatably mounted inside the vertical seat 227. A belt 229 is installed between the two driving pulleys 228 and the several driven pulleys 225.

[0028] The sandblasting assembly 23 is located inside the protective chamber 211 and is used for sandblasting cylindrical magnets.

[0029] In this embodiment, by fixing the cylindrical magnet in the fixture 224, the first servo motor 2210 drives the first shaft 2211 to rotate, which in turn drives the turntable 222 to perform intermittent indexing rotation. This revolution motion enables each station 223 with the workpiece clamped to be sequentially sent to the front of the sandblasting assembly 23, thus forming a continuous production cycle. At the same time, the output end of the second servo motor 2212 drives the second shaft 2213 to rotate, which drives the drive pulley 228 to rotate. The power is synchronously transmitted to the driven pulleys 225 below all stations through the belt 229. Finally, the driven pulleys 225 drive the fixture 224 and the cylindrical magnet on it to rotate at a constant speed around their own axis through the station 223. Through the combined motion of revolution and rotation, the fixture fixed in the sandblasting assembly 23 can form a complex scanning trajectory relative to the irregular inner hole of the magnet, ensuring that the abrasive flow can cover every surface of the inner hole without dead angles.

[0030] Specifically, the positioning component 22 includes a first servo motor 2210 installed on the top of the protective chamber 211. The output end of the first servo motor 2210 is fixed to a first shaft 2211 and fixed to the turntable 222. A second servo motor 2212 is installed on the top of the base 221. The output end of the second servo motor 2212 is fixed to a second shaft 2213 and fixed to one of the drive pulleys 228.

[0031] Specifically, the sandblasting assembly 23 includes a crossbeam 231 fixed inside the rear end of the protective chamber 211. The top left and right ends of the crossbeam 231 are fixed with uprights 232. Rotating shafts 233 are rotatably installed between the upper and lower sides of the crossbeams 231 at both ends. Several nozzles 234 are fixed on the rotating shafts 233. A hose 235 is fixed between the rear end of the nozzles 234 and the sandblasting machine 212. A rocker arm 236 is fixed to the right end of the upper rotating shaft 233. A third servo motor 237 is installed at the right end of the protective chamber 211. A circular plate 238 is fixed to the output end of the third servo motor 237. A support rod 239 is pivotally connected to the outer edge of the circular plate 238, and the upper end of the support rod 239 is pivotally connected to the rear end of the rocker arm 236.

[0032] In this embodiment, the output end of the third servo motor 237 drives the circular plate 238 to rotate at a constant speed. The support rod 239 pivotally connected to the outer edge of the circular plate 238 moves accordingly, thereby pushing the rocker arm 236 fixed to the upper rotating shaft 233 to swing back and forth. Finally, it drives several nozzles 234 connected to the upper and lower sides through the rotating shaft 233 to swing synchronously within a certain angle. This swinging spray mode can effectively solve the problem of cleaning dead corners that are easily caused by complex structures such as steps and grooves in the inner hole, ensuring the uniformity and thoroughness of rust removal.

[0033] Specifically, the sandblasting assembly 23 also includes an extension arm 2310 fixed to the right end of the rotating shaft 233, and a connecting rod 2311 is pivotally connected between the front ends of the extension arms 2310 on the upper and lower sides.

[0034] In this embodiment, when the upper rotating shaft 233 swings, the extension arm 2310 fixed to the right end of the rotating shaft 233 moves accordingly, and then transmits power to the extension arm 2310 on the lower rotating shaft 233 through the pivotally connected connecting rod 2311, forcing the lower rotating shaft 233 to swing synchronously in the opposite direction to the upper one; the symmetrical swing can simultaneously cover areas or complex surfaces at different depths above and below the inner hole of the cylindrical magnet, which multiplies the efficiency and coverage uniformity of the sandblasting operation, and completely eliminates the visual blind spots and processing dead angles that may exist in the single-direction swing.

[0035] Specifically, the main component 21 also includes a front hatch 213 hinged to the front end of the protective compartment 211, and a side hatch 214 pivotally connected to the right end of the protective compartment 211.

[0036] In this embodiment, the front hatch 213 serves as the main operating channel, facilitating routine loading and unloading of workpieces and daily observation by the operator from the front, while the side hatch 214 provides a convenient side channel for maintaining the equipment interior, cleaning accumulated abrasive, and handling abnormal situations.

[0037] Specifically, the main component 21 also includes a dust removal system 215 installed at the upper end of the protective chamber 211, and a recycling system 216 installed at the lower end of the protective chamber 211.

[0038] In this embodiment, during sandblasting, the dust removal system 215 continuously generates negative pressure inside the protective chamber 211, which efficiently captures suspended fine dust particles and discharges clean air after filtration and purification, thereby maintaining good visibility inside the chamber and preventing environmental pollution; at the same time, the mixed abrasive and impurities that fall after sandblasting are collected by the recovery system 216 located at the bottom of the protective chamber 211.

[0039] The working principle and usage process of this utility model are as follows: First, the operator opens the front door 213 at the front of the protective chamber 211 and clamps and fixes the cylindrical magnets to be processed onto the various tooling 224 arranged circumferentially on the turntable 222 in sequence. Then, the front door 213 is closed to ensure a seal. After the device is started, the dust removal system 215 starts working first, creating a negative pressure environment inside the protective chamber 211, and the sandblasting machine 212 is ready at the same time. The automated cycle begins, and the first servo motor 2210 drives the turntable 222 to perform an intermittent indexing rotation through the first shaft 2211, accurately transferring a workstation 223 containing a workpiece to the processing position in front of the sandblasting assembly 23. At this time, the second servo motor 2212 starts immediately, driving the drive pulley 228 to rotate through the second shaft 2213. The power is synchronously transmitted to all driven pulleys 225 through the belt 229, thereby driving the workstation 223 to rotate. The tooling 224 at the processing position and the cylindrical magnet on it begin to rotate uniformly around their own axis. At the same time, the third servo motor 237 starts, driving the circular plate 238 to rotate. This drives the rocker arm 236 to swing through the support rod 239, which in turn drives the upper rotating shaft 233 to move. This movement, through the linkage of the extension arm 2310 and the connecting rod 2311, forces the lower rotating shaft 233 to swing synchronously in the opposite direction. As a result, the nozzle 234 installed on the upper and lower rotating shafts 233 begins to swing back and forth regularly under the material supply of the hose 235. Thus, under the combined motion of the continuous rotation of the magnet and the synchronous swing of the nozzle 234, the abrasive flow can cover all complex surfaces of the irregular inner hole of the impact magnet in all directions and without dead angles, achieving efficient and uniform rust removal. During this process, the dust generated is extracted and purified in real time by the dust removal system 215, while the abrasive and impurities that splash down are collected by the recovery system 216 at the bottom.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets, comprising a base frame (1), characterized in that: The base frame (1) is equipped with a rust removal mechanism (2) for removing rust from cylindrical magnets. The rust removal mechanism (2) includes: The main component (21) includes a protective chamber (211) fixed to the top of the base frame (1), and a sandblasting machine (212) is installed at the rear end of the protective chamber (211); The positioning component (22) includes a base (221) fixed inside the protective chamber (211), a turntable (222) is rotatably mounted on the upper end of the base (221), a number of workstations (223) arranged in a circle are rotatably mounted on the inner outer edge of the turntable (222), a tooling (224) is fixed on the upper end of the workstation (223), a driven pulley (225) is fixed on the lower end of the workstation (223), a horizontal seat (226) is fixed at the front end inside the protective chamber (211) and located in front of the base (221), and upright seats (227) are fixed on both the left and right ends of the top of the horizontal seat (226), a driving pulley (228) is rotatably mounted inside the upright seat (227), and a belt (229) is installed between the two driving pulleys (228) and the number of driven pulleys (225); A sandblasting assembly (23) is installed inside the protective chamber (211) and is used for sandblasting cylindrical magnets.

2. The automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets according to claim 1, characterized in that: The positioning component (22) includes a first servo motor (2210) installed on the top of the protective cabin (211). The output end of the first servo motor (2210) is fixed with a first shaft (2211) and fixed with a turntable (222). A second servo motor (2212) is installed on the top of the base (221). The output end of the second servo motor (2212) is fixed with a second shaft (2213) and fixed with one of the drive pulleys (228).

3. The automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets according to claim 1, characterized in that: The sandblasting assembly (23) includes a crossbeam (231) fixed inside the rear end of the protective chamber (211). The top left and right ends of the crossbeam (231) are fixed with uprights (232). Rotating shafts (233) are rotatably installed between the upper and lower sides of the crossbeams (231). Several nozzles (234) are fixed on the rotating shafts (233). A hose (235) is fixed between the rear end of the nozzles (234) and the sandblasting machine (212). A rocker arm (236) is fixed to the right end of the upper rotating shaft (233). A third servo motor (237) is installed at the right end of the protective chamber (211). A circular plate (238) is fixed to the output end of the third servo motor (237). A support rod (239) is pivotally connected to the outer edge of the circular plate (238), and the upper end of the support rod (239) is pivotally connected to the rear end of the rocker arm (236).

4. The automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets according to claim 3, characterized in that: The sandblasting assembly (23) also includes an extension arm (2310) fixed to the right end of the rotating shaft (233), and a connecting rod (2311) is pivotally connected between the front ends of the extension arms (2310) on the upper and lower sides.

5. The automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets according to claim 1, characterized in that: The main component (21) also includes a front hatch (213) hinged to the front end of the protective cabin (211), and a side hatch (214) pivotally connected to the right end of the protective cabin (211).

6. The automated sandblasting and rust removal device for irregularly shaped inner holes of cylindrical magnets according to claim 1, characterized in that: The main component (21) also includes a dust removal system (215) installed at the upper end of the protective chamber (211) and a recycling system (216) installed at the lower end of the protective chamber (211).

Images