Inner hole machining mechanism special for MB vacuum pump driving shaft

Abstract

The utility model discloses an inner hole machining mechanism special for an MB vacuum pump driving shaft. The inner hole machining mechanism comprises a base. The base is used for supporting a whole mechanism element and is characterized in that a sliding way, a sliding rail, a collecting box, a fixing plate, a magnetic attraction piece, a fixing frame, a first electric push rod, a driving groove, a driver, a grinding head, a containing base, a containing groove, a clamping frame, a clamping head, a guide hole, a guide rod, a threaded hole, a threaded rod, a rotating bearing, a handle and an iron scrap cleaning assembly are arranged on the base; the inner hole machining device relates to the technical field of inner hole machining, and has the beneficial effects that automatic cleaning can be carried out after an inner hole is polished in a powder blowing and light brushing mode through the iron scrap cleaning assembly, additional cleaning after the shaft body is taken down is not needed, many tedious processes are saved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of internal hole machining technology, specifically to a dedicated internal hole machining mechanism for the drive shaft of an MB vacuum pump. Background Technology

[0002] A Roots vacuum pump (abbreviated as Roots pump) is a type of variable displacement vacuum pump containing two lobe-shaped rotors that rotate synchronously in opposite directions. There are small gaps between the rotors and between the rotors and the inner wall of the pump casing so that they do not come into contact with each other.

[0003] Because the inner hole of the Roots vacuum pump drive shaft needs to be finely ground, and when grinding the inner hole in a conventional way, the iron powder that is ground off during the process will remain in the drive shaft hole, which is very inconvenient to clean. Therefore, we designed a special inner hole machining mechanism for MB vacuum pump drive shaft. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a special internal hole machining mechanism for the drive shaft of an MB vacuum pump, including a base; the base is used to support the entire mechanism components, and the base is provided with: a slide rail, a slide rail, a collection box, a fixing plate, a magnetic absorbing plate, a fixing frame, a first electric push rod, a drive groove, a driver, a grinding head, a placement seat, a placement groove, a clamping frame, a clamping head, a guide hole, a guide rod, a threaded hole, a threaded rod, a rotary bearing, a handle, a ramp slide frame, a drain hole, and a shavings cleaning assembly;

[0005] The slide is located at the bottom of the base, the ramp slide frame is installed at the front of the base, the drain hole is located on the base at the front end of the ramp slide frame, the slide rail is installed on the collection box, the collection box is installed in the slide via the slide rail, the fixing plate is installed on the collection box, the magnetic suction plate is installed on the fixing plate and the side of the base, the placement seat is installed on the base, the placement groove is located on the placement seat, the clamping frame is installed on the placement seat, the guide hole and the threaded hole are located on the clamping frame, the guide rod is installed in the guide hole, the threaded rod is installed in the threaded hole, the clamping head is connected to the bottom of the guide rod, the threaded rod is connected to the clamping head via a rotary bearing, and the handle is connected to the top of the threaded rod. With the above structure, the grinding work of the vacuum pump drive shaft hole can be completed.

[0006] The shavings cleaning assembly includes: a mounting slot, a second electric push rod, a third electric push rod, a lifting frame, a fan, a jet hood, an inclined exhaust port, a fourth electric push rod, a soft brush head, a motor slot, and a rotary motor.

[0007] The mounting slot is located at the rear of the base. The second electric push rod is installed in the mounting slot. The lifting frame is installed on the telescopic end of the second electric push rod. The third and fourth electric push rods are installed on the lifting frame. The fan is installed on the telescopic end of the third electric push rod. The jet hood is connected to the air outlet of the fan. The inclined exhaust port is located on the jet hood. The motor slot is located on the telescopic end of the fourth electric push rod. The rotary motor is installed in the motor slot. The soft brush head is installed on the output end of the rotary motor. This component can assist the mechanism in performing automatic cleaning of the shaft body.

[0008] Preferably, the lower part of the clamping head is configured as an arc shape to adapt to the surface of the Roots vacuum pump drive shaft.

[0009] Preferably, the shape of the placement slot needs to correspond to the shape of the Roots vacuum pump drive shaft.

[0010] Beneficial effects

[0011] This special internal bore machining mechanism for the MB vacuum pump drive shaft has the following advantages:

[0012] This invention utilizes a metal shavings cleaning component to automatically clean the inner hole after grinding using powder blowing and light brushing, eliminating the need to remove the shaft for separate cleaning, thus saving many tedious processes and greatly improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a dedicated internal hole machining mechanism for the MB vacuum pump drive shaft described in this utility model.

[0014] Figure 2 This is a front view structural schematic diagram of a special internal hole machining mechanism for the MB vacuum pump drive shaft described in this utility model.

[0015] Figure 3-4 This is a partially enlarged structural diagram of the internal hole machining mechanism for the MB vacuum pump drive shaft described in this utility model.

[0016] Figure 5 This is a partially enlarged structural diagram of the shavings removal component of the MB vacuum pump drive shaft internal hole machining mechanism described in this utility model.

[0017] Figure 6 This is a three-dimensional structural diagram of the mounting base for a dedicated internal hole machining mechanism for the MB vacuum pump drive shaft described in this utility model.

[0018] In the diagram: 1. Base; 2. Slide rail; 3. Slide track; 4. Collection box; 5. Fixing plate; 6. Magnetic plate; 7. Fixing frame; 8. First electric push rod; 9. Drive slot; 10. Driver; 11. Grinding head; 12. Placement seat; 13. Placement slot; 14. Clamping frame; 15. Clamping head; 16. Guide hole; 17. Guide rod; 18. Threaded hole; 19. Threaded rod; 20. Rotary bearing; 21. Handle; 22. Inclined slide rail frame; 23. Drain hole; 24. Mounting slot; 25. Second electric push rod; 26. Third electric push rod; 27. Lifting frame; 28. Fan; 29. ​​Jet hood; 30. Inclined exhaust port; 31. Fourth electric push rod; 32. Soft brush head; 33. Motor slot; 34. Rotary motor; Detailed Implementation

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figure 1-6 This utility model provides a technical solution.

[0021] A dedicated internal hole machining mechanism for the drive shaft of an MB vacuum pump includes a base 1; the base 1 supports the entire mechanism components and is provided with: a slide 2, a slide rail 3, a collection box 4, a fixing plate 5, a magnetic suction plate 6, a fixing frame 7, a first electric push rod 8, a drive groove 9, a driver 10, a grinding head 11, a placement seat 12, a placement groove 13, a clamping frame 14, a clamping head 15, a guide hole 16, a guide rod 17, a threaded hole 18, a threaded rod 19, a rotary bearing 20, a handle 21, a ramp slide frame 22, a drain hole 23, and a shavings cleaning assembly;

[0022] The slide 2 is located at the bottom of the base 1. The ramp slide frame 22 is installed in front of the base 1. The drain hole 23 is located on the base 1 at the front end of the ramp slide frame 22. The slide rail 3 is installed on the collection box 4. The collection box 4 is installed in the slide 2 via the slide rail 3. The fixing plate 5 is installed on the collection box 4. The magnetic suction piece 6 is installed on the fixing plate 5 and on the side of the base 1. The placement seat 12 is installed on the base 1. The placement groove 13 is located on the placement seat 12. The clamping frame 14 is installed on the placement seat 12. The guide hole 16 and the threaded hole 18 are located on the clamping frame 14. The guide rod 17 is installed in the guide hole 16. The threaded rod 19 is installed in the threaded hole 18. The clamping head 15 is connected to the bottom of the guide rod 17. The threaded rod 19 is connected to the clamping head 15 via a rotary bearing 20. The handle 21 is connected to the top of the threaded rod 19.

[0023] The shavings cleaning assembly includes: a mounting slot 24, a second electric push rod 25, a third electric push rod 26, a lifting frame 27, a fan 28, a jet hood 29, an inclined exhaust port 30, a fourth electric push rod 31, a soft brush head 32, a motor slot 33, and a rotary motor 34.

[0024] The mounting slot 24 is located behind the base 1. The second electric push rod 25 is installed in the mounting slot 24. The lifting frame 27 is installed on the telescopic end of the second electric push rod 25. The third electric push rod 26 and the fourth electric push rod 31 are installed on the lifting frame 27. The fan 28 is installed on the telescopic end of the third electric push rod 26. The jet hood 29 is connected to the air outlet of the fan 28. The inclined exhaust port 30 is located on the jet hood 29. The motor slot 33 is located on the telescopic end of the fourth electric push rod 31. The rotary motor 34 is installed in the motor slot 33. The soft brush head 32 is installed on the output end of the rotary motor 34.

[0025] It should be noted that when grinding the inner bore of the Roots vacuum pump drive shaft, the drive shaft is placed in the placement slot 13, and the handle 21 is turned to rotate the threaded rod 19 within the threaded hole 18, causing the clamping head 15 to descend on the guide rod 17 and press against the top groove of the Roots vacuum pump drive shaft, thereby clamping and fixing the drive shaft. Then, the first electric push rod 8 is controlled to extend the grinding head 11 into the drive shaft bore, while the driver 10 drives the grinding head 11 to rotate at high speed for grinding. After grinding, the second electric push rod 25 is controlled to raise and lower the lifting frame 27, and the third electric push rod 26 is used to align the jet shroud 29 with the drive shaft bore. Then... The operation of the blower 28 causes airflow to be ejected from the inclined exhaust port 30 of the jet hood 29, thereby blowing the iron powder on the shaft hole wall out of the hole. Then, the soft brush is aligned with the shaft hole, and the soft brush head 32 is inserted into the shaft hole of the drive shaft by the fourth electric push rod 31. Then, the rotating motor 34 drives the soft brush head 32 to rotate, thereby cleaning the iron shavings in the shaft hole and preventing iron powder from sticking after the powder blowing process. Then, the powder blowing is performed again. The blown iron powder enters the drain hole 23 through the inclined slide frame 22 and falls into the collection box 4 for collection. The collection box 4 can be moved out of the slide 2 by the slide rail 3 for processing and then installed back into the slide 2. The collection box 4 can be attracted and fixed by the magnetic suction plate 6.

[0026] Preferably, the gripping head 15 is further configured with an arc shape below it to fit the surface of the Roots vacuum pump drive shaft.

[0027] It should be noted that the arc-shaped clamping head 15 can better adapt to the surface shape of the Roots vacuum pump drive shaft, ensuring clamping stability.

[0028] Preferably, the shape of the placement slot 13 needs to correspond to the shape of the Roots vacuum pump drive shaft.

[0029] It should be noted that the shape of the placement groove 13 needs to be adapted to the drive shaft of the Ying Roots vacuum pump to ensure stability during the machining process.

[0030] 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 special hole processing mechanism for the main shaft of an MB vacuum pump, comprising a base; the base is used to support the entire mechanism element, characterized in that, The base is provided with: slide, slide rail, collection box, fixed plate, magnetic attraction piece, fixed frame, first electric push rod, drive groove, driver, polishing head, placement seat, placement groove, clamping frame, clamping head, guide hole, guide rod, threaded hole, threaded rod, rotary bearing, handle and iron cutting and cleaning assembly; The slide is opened in the bottom of the base, the slide rail is installed on the collection box, the collection box is installed in the slide through the slide rail, the fixed plate is installed on the collection box, the magnetic attraction piece is installed on the fixed plate and the side of the base, the placement seat is installed on the base, the placement groove is opened in the placement seat, the clamping frame is installed on the placement seat, the guide hole and the threaded hole are opened in the clamping frame, the guide rod is installed in the guide hole, the threaded rod is installed in the threaded hole, the clamping head is connected at the bottom of the guide rod, and the threaded rod is connected on the clamping head through the rotary bearing, and the handle is connected at the top of the threaded rod Wherein, iron cutting and cleaning assembly, including: installation groove, second electric push rod, third electric push rod, lifting frame, fan, jet cover, inclined exhaust port, fourth electric push rod, soft brush head and motor slot, rotary motor; The installation groove is opened at the back of the base, the second electric push rod is installed in the installation groove, the lifting frame is installed on the telescopic end of the second electric push rod, the third electric push rod and the fourth electric push rod are installed on the lifting frame, the fan is installed on the telescopic end of the third electric push rod, the jet cover is connected at the air outlet end of the fan, the inclined exhaust port is opened in the jet cover, the motor slot is opened on the telescopic end of the fourth electric push rod, the rotary motor is installed in the motor slot, and the soft brush head is installed on the output end of the rotary motor.

2. The inner hole processing mechanism for the main shaft of the MB vacuum pump according to claim 1, characterized in that, The clamping head below is set to be a circular arc shape matched with the surface of the driving shaft of the Roots vacuum pump.

3. The inner hole processing mechanism for the main shaft of the MB vacuum pump according to claim 1, characterized in that, The shape of the placement groove needs to be opened according to the outer shape of the driving shaft of the Roots vacuum pump.

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