A fine grinding device for motor rotor

Abstract

The utility model discloses a kind of fine grinding equipment for motor rotor, belong to fine grinding equipment technical field, including motor rotor fine grinding machine and install in the fine grinding wheel of the motor rotor fine grinding machine front side, the front side of the motor rotor fine grinding machine and below the fixed setting of the fine grinding wheel support plate, waste chip extraction mechanism is installed on the support plate, the utility model is extracted by setting waste chip extraction mechanism and grinding dust trapping mechanism outside fine grinding wheel, can be captured and concentrated in grinding process to the metal chip of spatter, shell adopts narrow upper wide structure, while guaranteeing workpiece processing space, effectively guide larger particle slide down and enter collection channel, electromagnetic suction plate forms stable adsorption area in shell inner wall when energization, metal dust can be captured in time, prevent it from flying around in cavity, after processing, power off can also make the fragment that has been adsorbed concentrated release.

Description

Technical Field

[0001] This utility model relates to the technical field of precision grinding equipment, specifically a precision grinding equipment for motor rotors. Background Technology

[0002] During the precision grinding of metal parts such as motor rotors, the high-speed rotation of the grinding wheel and its contact with the workpiece surface will generate a large number of fine metal chips. These chips, due to their kinetic energy, often fly at high speed along the cutting direction, which not only easily contaminates the processing environment, but may also enter moving parts such as the spindle and guide rails, causing wear or even jamming.

[0003] In the prior art, in order to reduce the pollution of the processing environment by debris and the damage to machine tool parts, some equipment is equipped with negative pressure fans or dust removal devices at the fine grinding station. The debris is taken away from the processing area by airflow suction. However, due to the complex airflow disturbance in the grinding area, some debris is difficult to enter the suction channel in time and often accumulates on the inner wall of the cover or falls to other areas of the processing room, which is not conducive to cleaning. Therefore, a fine grinding equipment for motor rotor is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a precision grinding equipment for motor rotors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision grinding equipment for motor rotors, comprising a motor rotor precision grinding machine tool and a precision grinding wheel installed on the front side of the motor rotor precision grinding machine tool;

[0006] A support plate is fixedly provided on the front side of the motor rotor precision grinding machine and below the precision grinding wheel, and a waste chip extraction mechanism is installed on the support plate.

[0007] The waste extraction mechanism includes a base, and a housing is connected to the upper part of the base by screws. The housing has a square opening on the front side and a circular opening on the rear side.

[0008] An annular frame is fixed to the rear side of the inner wall of the outer shell, and a conical frame is fixedly connected to one side of the annular frame. The inner wall of the conical frame is provided with several long through grooves along the circumference.

[0009] The outer shell has a structure that is narrow at the top and wide at the bottom. An electromagnetic suction plate is laid on the inner wall of the lower wide part, and an adsorption area is formed between the electromagnetic suction plate and the annular frame and the conical frame.

[0010] The outer casing is provided over the outside of the grinding wheel;

[0011] A wear debris collection mechanism is installed at the bottom of the support plate.

[0012] As a further preferred embodiment of this technical solution: the top two sides of the support plate are connected to guide rails by screws, and the outer wall of the guide rails is embedded with and slidably connected to sliders. The tops of the two sliders are fixedly connected to the bottom two sides of the base by screws respectively.

[0013] As a further preferred embodiment of this technical solution: a limit plate is fixed to the top of the support plate and the rear side of the guide rail by screws.

[0014] As a further preferred embodiment of this technical solution: the grinding debris collection mechanism includes a support frame, on which a storage box is placed, and a corrugated pipe is threadedly connected to the top of the storage box. The base and the support plate have interconnected pipe holes, and the inner wall of the pipe hole of the base has a threaded portion.

[0015] As a further preferred embodiment of this technical solution: one end of the corrugated pipe slides through the pipe hole of the support plate and is threadedly connected to the inner wall of the pipe hole of the base.

[0016] As a further preferred embodiment of this technical solution: a blower is installed on one side of the bottom of the support frame, one end of the blower is fixedly connected to a pipe, and the other end of the pipe is fixedly connected to the bottom of the storage box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention features a waste chip extraction and collection mechanism on the outside of the grinding wheel. This mechanism captures and extracts flying metal chips during grinding. The outer shell has a narrow top and wide bottom structure, which ensures sufficient processing space for the workpiece while effectively guiding larger particles to slide down and enter the collection channel. When energized, the electromagnetic suction plate forms a stable adsorption zone on the inner wall of the outer shell, which can instantly capture metal chips and prevent them from scattering throughout the cavity. After processing, the power is turned off, allowing the adsorbed chips to be released. Combined with the operation of the blower and the bellows, a negative pressure airflow is formed in the collection channel, which quickly pumps the falling chips to the storage box. This not only improves the timeliness and thoroughness of waste chip collection and enhances the cleanliness of the processing environment, but also effectively reduces the risk of wear and jamming caused by chips entering precision components such as the spindle and guide rails. Attached Figure Description

[0019] Figure 1 This is a first structural schematic diagram of a precision grinding equipment for motor rotors according to the present invention;

[0020] Figure 2 This is a schematic diagram of the second structure of a precision grinding equipment for motor rotors according to the present invention;

[0021] Figure 3This is a schematic diagram of the support plate in a precision grinding equipment for motor rotors according to this utility model;

[0022] Figure 4 This is a schematic diagram of the waste chip extraction mechanism in a precision grinding equipment for motor rotors according to this utility model;

[0023] Figure 5 This is a cross-sectional schematic diagram of the waste chip extraction mechanism in a precision grinding equipment for motor rotors according to this utility model.

[0024] In the diagram: 11. Motor rotor precision grinding machine; 12. Grinding wheel; 13. Support plate; 14. Guide rail; 15. Slider; 16. Limiting plate; 20. Grinding chip collection mechanism; 21. Support frame; 22. Storage box; 23. Blower; 24. Pipe; 25. Corrugated pipe; 26. Pipe hole; 30. Waste chip extraction mechanism; 31. Base; 32. Outer shell; 33. Annular frame; 34. Conical frame; 35. Long through slot; 36. Electromagnetic suction plate; 37. Adsorption zone. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example

[0027] Please see Figures 1-5 This utility model provides a technical solution: a precision grinding equipment for motor rotors, including a motor rotor precision grinding machine tool 11, a precision grinding wheel 12, a support plate 13, a waste chip extraction and discharge mechanism 30, and a chip collection mechanism 20.

[0028] In this embodiment, specifically: the motor rotor precision grinding machine tool 11 is the main supporting component of the whole machine. It is equipped with a drive motor and transmission mechanism to drive the front precision grinding wheel 12 to rotate at high speed. The precision grinding wheel 12 is fixedly installed on the front side of the motor rotor precision grinding machine tool 11, and its outer edge surface contacts the outer circle of the motor rotor to be processed. The surface is finished by high-speed grinding. Since a large amount of metal chips and dust will be generated during the grinding process, a support plate 13 is fixedly provided below the precision grinding wheel 12, and a waste chip extraction mechanism 30 is installed above the support plate 13. At the same time, a chip collection mechanism 20 is arranged at the lower part of the support plate 13 to form a waste chip collection and transfer path from top to bottom.

[0029] In this embodiment, the waste extraction mechanism 30 specifically includes a base 31, a shell 32, an annular frame 33, a conical frame 34, a long through groove 35, an electromagnetic suction plate 36, and an adsorption area 37.

[0030] In this embodiment, specifically: the base 31 is fixed to the support plate 13 by screws, serving as a load-bearing and positioning element. The upper end of the base 31 is screwed to the outer shell 32. The outer shell 32 has an overall structure that is narrower at the top and wider at the bottom. It has a square opening on the front side to facilitate the capture of waste chips and the grinding operation space when the workpiece and the grinding wheel 12 are in frontal contact. It has a circular opening on the rear side, which is coaxially arranged with the annular frame 33 to facilitate the entry of metal chips splashed during grinding into the internal collection channel.

[0031] In this embodiment, specifically: the annular frame 33 is fixed to the rear wall of the outer shell 32, and a conical frame 34 is connected to one side of it. Several long through grooves 35 are evenly distributed along the circumference of the inner wall of the conical frame 34. The long through grooves 35 form a flow channel, which can guide the iron filings attracted by the magnetic force or the tiny powders that are not attracted. The conical frame 34 also serves as a separator, separating the electromagnetic adsorption area 37 from the operation area.

[0032] In this embodiment, specifically: an electromagnetic chuck 36 is laid on the lower wide inner wall of the outer shell 32. When energized, it can form a stable magnetic field adsorption area 37 inside the outer shell, effectively capturing and fixing the magnetic metal chips generated during the processing, preventing the chips from scattering in the cavity. The electromagnetic chuck 36 works in conjunction with the structure of the outer shell 32, so that flying chips can be quickly adsorbed and guided to the collection area during grinding. After processing, the adsorbed iron chips can be released and fall into the lower channel by turning off the power, reducing the pollution of the operating environment caused by flying chips.

[0033] In this embodiment, specifically: guide rails 14 are installed on both sides of the top of the support plate 13 by screws, and sliders 15 are slidably embedded in the outer wall of the guide rails 14. The top of the sliders 15 is fixedly connected to both sides of the base 31 by screws, thereby realizing the sliding installation structure of the waste extraction mechanism 30 relative to the support plate 13. With this design, the operator can easily pull out or push the waste extraction mechanism 30 along the direction of the guide rails 14 during maintenance or cleaning, which improves the maintainability of the equipment.

[0034] In this embodiment, specifically: a limit plate 16 is fixed at the top of the support plate 13 and at the rear side of the guide rail 14 by screws, which serves to constrain the stroke and prevent the outer shell 32 from sliding in excessively due to external force, thus ensuring the safe operation of the equipment.

[0035] In this embodiment, specifically: the grinding debris collection mechanism 20 is installed at the bottom of the support plate 13, including a support frame 21, a storage box 22, a blower 23, a pipe 24, and a corrugated pipe 25.

[0036] In this embodiment, specifically: the support frame 21 is fixedly connected to the bottom of the support plate 13 to support the storage box 22. The top of the storage box 22 is threadedly connected to a corrugated pipe 25, which can communicate with the pipe holes 26 provided on the base 31 and the support plate 13, and achieve a reliable sealing connection through the threaded part, thereby establishing a waste discharge channel. The two ends of the corrugated pipe 25 are threadedly connected to the storage box 22 and the base 31 respectively, which can be easily disassembled for easy maintenance and cleaning later.

[0037] In this embodiment, specifically: the blower 23 is installed on the bottom side of the support frame 21, one end of which is connected to the pipe 24, and the other end of the pipe 24 is fixedly connected to the bottom of the storage box 22. When the blower 23 is running, it generates negative pressure suction to quickly pump the waste falling below the base 31 into the storage box 22 for centralized storage.

[0038] In this embodiment, specifically: the electromagnetic suction plate 36 in the waste chip extraction mechanism 30 and the blower 23 in the grinding chip collection mechanism 20 are both electrically connected to an independently set electrical control box. The electrical control box is then connected to the main control system of the precision grinding machine tool 11. As an intermediate control unit, the electrical control box can control the working status of the electromagnetic suction plate 36 and the blower 23 according to the control signal.

[0039] Working principle: When the equipment is put into use, the drive motor of the motor rotor precision grinding machine tool 11 drives the precision grinding wheel 12 to rotate at high speed. When the precision grinding wheel 12 contacts the outer circle surface of the motor rotor, a large amount of metal chips will be generated under the action of grinding force.

[0040] The generated metal chips are directly blocked by the outer casing 32 during the initial splashing stage. The square opening on the front of the outer casing 32 ensures that there is sufficient operating space when the workpiece contacts the grinding wheel 12. At the same time, the outer casing 32 is narrower at the top and wider at the bottom, which effectively guides the scattered chips into the cavity of the outer casing 32. The electromagnetic chuck 36 set on the lower part of the inner wall of the outer casing 32 will immediately form a stable magnetic field after being energized, and establish an adsorption area 37 around it. When these chips enter the adsorption area 37, they will be quickly captured and firmly adsorbed on the surface of the electromagnetic chuck 36 by the magnetic force. This effectively prevents the spread of fine chips in the processing area and ensures a relatively clean air environment in the grinding area, avoiding contamination of operators and precision machine tool parts.

[0041] As the grinding process continues, iron filings accumulate on the electromagnetic chuck 36. When a cycle of processing is completed, the control system cuts off the power to the electromagnetic chuck 36, the magnetic field disappears, and the iron filings that were originally attracted are released in a concentrated manner after being unbound. At this time, the falling iron filings are quickly transported to the tube hole 26 at the bottom of the base 31 under the action of gravity, and the working of the blower 23 further enhances the conveying effect.

[0042] After the debris enters the lower part of the base 31, it is further conveyed to the storage bin 22 through the corrugated pipe 25 connected to it. Due to the flexible and bendable nature of the corrugated pipe 25, the connection remains stable and sealed even during equipment maintenance or vibration environments, thus ensuring that the debris does not leak. At the same time, the threaded connection of the corrugated pipe 25 also facilitates disassembly and cleaning by operators when needed.

[0043] The blower 23, mounted on the support frame 21, is connected to the bottom of the storage box 22 via the pipe 24. When the blower 23 is started, it will form a continuous negative pressure airflow at one end of the corrugated pipe 25 and the pipe hole 26 of the base 31. The airflow can accelerate the falling speed of iron filings and dust, and can also suck up some light dust to prevent it from being retained in the shell 22. Through this negative pressure-assisted method, the thoroughness and efficiency of waste collection are improved.

[0044] 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. A precision grinding machine for motor rotors, characterized in that: include Motor rotor precision grinding machine (11) and a precision grinding wheel (12) installed on the front side of the motor rotor precision grinding machine (11); A support plate (13) is fixedly provided on the front side of the motor rotor precision grinding machine (11) and below the precision grinding wheel (12), and a waste chip extraction mechanism (30) is installed on the support plate (13); The waste extraction mechanism (30) includes a base (31), and a housing (32) is connected to the upper part of the base (31) by screws. The housing (32) has a square opening on the front side and a round opening on the rear side. An annular frame (33) is fixed to the rear side of the inner wall of the outer shell (32), and a conical frame (34) is fixedly connected to one side of the annular frame (33). The inner wall of the conical frame (34) is provided with several long through grooves (35) along the circumferential direction. The outer shell (32) has a structure that is narrow at the top and wide at the bottom. An electromagnetic suction plate (36) is laid on the inner wall of the lower wide part. An adsorption area (37) is formed between the electromagnetic suction plate (36), the annular frame (33), and the conical frame (34). The outer casing (32) covers the outside of the grinding wheel (12); The bottom of the support plate (13) is equipped with a chip collection mechanism (20).

2. The precision grinding equipment for motor rotors according to claim 1, characterized in that: The top two sides of the support plate (13) are connected to guide rails (14) by screws. The outer wall of the guide rails (14) is embedded and slidably connected to sliders (15). The tops of the two sliders (15) are fixedly connected to the bottom two sides of the base (31) by screws respectively.

3. The precision grinding equipment for motor rotors according to claim 2, characterized in that: A limit plate (16) is fixed to the top of the support plate (13) and behind the guide rail (14) by screws.

4. The precision grinding equipment for motor rotors according to claim 3, characterized in that: The grinding debris collection mechanism (20) includes a support frame (21), on which a storage box (22) is placed. A corrugated pipe (25) is threadedly connected to the top of the storage box (22). The base (31) and the support plate (13) are provided with interconnected pipe holes (26), and the inner wall of the pipe hole (26) of the base (31) is provided with a threaded part.

5. The precision grinding equipment for motor rotors according to claim 4, characterized in that: One end of the corrugated pipe (25) slides through the pipe hole (26) of the support plate (13) and is threadedly connected to the inner wall of the pipe hole (26) of the base (31).

6. The precision grinding equipment for motor rotors according to claim 5, characterized in that: A blower (23) is installed on one side of the bottom of the support frame (21). One end of the blower (23) is fixedly connected to a pipe (24), and the other end of the pipe (24) is fixedly connected to the bottom of the storage box (22).

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