Mechanism for measuring precision of inner hole of driving shaft of MB vacuum pump

Abstract

The utility model discloses a precision measuring mechanism for an inner hole of a driving shaft of an MB vacuum pump. The base is used for supporting the whole mechanism element, and the base is provided with a driving groove, a lead screw, a lead screw sliding block, a handle, a clamping frame, a moving frame and an inner hole precision measuring and detecting assembly. Driving shafts of MB vacuum pumps of different sizes can be supported to be installed on the mechanism, the shaft hole wall face of the driving shaft can be accurately measured through the inner hole precision measurement and detection assembly, and the process is convenient, rapid and efficient.

Description

Technical Field

[0001] This utility model relates to the field of drive shaft detection technology, specifically to a mechanism for measuring the accuracy of the inner bore of an MB vacuum pump drive shaft. Background Technology

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container to obtain a vacuum. In layman's terms, a vacuum pump is a device that uses various methods to improve, generate, and maintain a vacuum in a closed space. Its drive shaft is an important component of the vacuum pump, so its manufacturing precision must be guaranteed. Therefore, we designed a consistent MB vacuum pump drive shaft inner hole precision measuring mechanism. Summary of the Invention

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: an MB vacuum pump drive shaft inner hole precision measuring mechanism, including a base; the base is used to support the entire mechanism components, and the base is provided with a drive groove, a lead screw, a lead screw slider, a handle, a clamping frame, a moving frame, and an inner hole precision measuring and detection component;

[0004] The drive slots are opened on both sides inside the base, the lead screw is installed in the drive slots, the lead screw slider is fitted on the lead screw, the handle is connected to the lead screw, and the bottom of the clamping frame and the moving frame are distributed and connected to the lead screw slider.

[0005] The internal hole accuracy measurement and detection component includes: a transmission groove, a wrench holder, a rotating shaft, a telescopic groove, a telescopic column, a hinge seat, a swing arm, a first pipe top, a second pipe top, a return spring, a moving groove, a moving column, a handle, a mounting groove, a measuring head, a bracket, and a dial indicator.

[0006] The transmission groove begins on the clamping frame. The wrench holder is mounted on the opening above the transmission groove via a rotating shaft. The telescopic groove is opened at the bottom of the wrench holder. The telescopic column is installed in the telescopic groove. The hinge is installed at the bottom of the telescopic column. The first pipe tip is installed in the transmission groove. The swing arm is installed on the hinge and connected to the rear of the first pipe tip. The return spring is mounted between the rear wall of the transmission groove and the first pipe tip. The second pipe tip is fixedly installed on the moving frame. The moving groove is opened on the moving frame. The moving column is installed on the moving groove. The handle is connected to the rear end of the moving column. The mounting groove is opened at the front of the moving column. The dial indicator is installed on the moving column. The bracket passes through the mounting groove and is connected to the measuring end of the dial indicator. The measuring head is installed on the bracket. This assembly can be used to inspect the inner wall surface of the shaft hole of the MB vacuum pump drive shaft.

[0007] Preferably, the dimensions of the first pipe tip and the second pipe tip are the same as the inner diameter of the drive shaft.

[0008] Preferably, the base is provided with a shaft bracket.

[0009] Preferably, the measuring head needs to be kept in close contact with the inner wall of the drive shaft during testing.

[0010] This MB vacuum pump drive shaft inner bore precision measuring mechanism has the following advantages:

[0011] This invention features an adjustable clamping structure that allows for the mounting of drive shafts of MB vacuum pumps of different sizes onto the mechanism. The internal bore precision measurement and detection component enables accurate measurement of the shaft bore wall surface, making the process convenient, fast, and efficient. Attached Figure Description

[0012] Figure 1 This is a three-dimensional external structural diagram of the MB vacuum pump drive shaft inner hole precision measuring mechanism described in this utility model.

[0013] Figure 2 This is a top view schematic diagram of the MB vacuum pump drive shaft inner hole accuracy measuring mechanism described in this utility model.

[0014] Figure 3 This is a front sectional view of the MB vacuum pump drive shaft inner hole accuracy measuring mechanism described in this utility model.

[0015] Figure 4 This is a side sectional view of the MB vacuum pump drive shaft inner hole accuracy measuring mechanism described in this utility model.

[0016] Figure 5 This is a partially enlarged structural diagram of the inner hole accuracy measurement and detection component of the MB vacuum pump drive shaft inner hole accuracy measurement mechanism described in this utility model.

[0017] In the diagram: 1. Base; 2. Drive slot; 3. Lead screw; 4. Lead screw slider; 5. Handle; 6. Clamping frame; 7. Moving frame; 9. Transmission slot; 10. Wrench holder; 11. Rotating shaft; 12. Telescopic slot; 13. Telescopic column; 14. Hinge seat; 15. Swing arm; 16. First pipe top; 17. Second pipe top; 18. Return spring; 19. Moving slot; 20. Moving column; 21. Handle; 22. Mounting slot; 23. Measuring head; 24. Bracket; 8. Dial indicator. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5This utility model provides a technical solution.

[0020] An MB vacuum pump drive shaft inner hole accuracy measuring mechanism includes a base 1; the base 1 is used to support the entire mechanism components, and the base is provided with a drive groove 2, a lead screw 3, a lead screw slider 4, a handle 5, a clamping frame 6, a moving frame 7, and an inner hole accuracy measuring and detection component.

[0021] The drive groove 2 is opened on both sides inside the base 1, the lead screw 3 is installed in the drive groove 2, the lead screw slider 4 is fitted on the lead screw 3, the handle 5 is connected to the lead screw 3, and the bottom of the clamping frame 6 and the moving frame 7 are distributed and connected to the lead screw slider 4.

[0022] The internal hole accuracy measurement and detection assembly includes: a transmission groove 9, a wrench holder 10, a rotating shaft 11, a telescopic groove 12, a telescopic column 13, a hinge seat 14, a swing arm 15, a first pipe top 16, a second pipe top 17, a return spring 18, a moving groove 19, a moving column 20, a handle 21, a mounting groove 22, a measuring head 23, a bracket 24, and a dial indicator 8.

[0023] The transmission groove 9 begins on the clamping frame 6. The wrench holder 10 is mounted on the opening above the transmission groove 9 via a rotating shaft 11. The telescopic groove 12 is opened at the bottom of the wrench holder 10. The telescopic column 13 is installed in the telescopic groove 12. The hinge seat 14 is installed at the bottom of the telescopic column 13. The first pipe top 16 is installed in the transmission groove 9. The swing arm 15 is installed on the hinge seat 14 and connected to the rear of the first pipe top 16. The return spring 18 is mounted between the rear wall of the transmission groove 9 and the first pipe top 16. The second pipe top 17 is fixedly installed on the moving frame 7. The moving groove 19 is opened on the moving frame 7. The moving column 20 is installed in the moving groove 19. The handle 21 is connected to the rear end of the moving column 20. The mounting groove 22 is opened in front of the moving column 20. The dial indicator 8 is installed on the moving column 20. The bracket 24 passes through the mounting groove 22 and is connected to the measuring end of the dial indicator 8. The measuring head 23 is installed on the bracket 24.

[0024] It should be noted that before measuring the inner bore of the MB vacuum pump drive shaft, the second pipe tip 17 is inserted into the shaft hole at the rear of the drive shaft, and the first pipe tip 16 is inserted into the shaft hole at the front of the drive shaft, thus fixing the drive shaft. During precision measurement, the moving column 20 is pushed forward in the moving groove 19 by the handle 21, so that the measuring head 23 extends into the inner bore of the drive shaft and is attached to the inner bore wall. As the measuring head 23 moves into the hole, the accuracy value of the inner bore wall can be obtained by reading the dial indicator 8. When disassembling the drive shaft, the wrench holder 10 can be pulled, thereby pulling the first pipe tip 16 back by the swing arm 15, thereby removing the first pipe tip 16 from the inner bore of the drive shaft, thus disassembling the drive shaft.

[0025] Preferably, the dimensions of the first pipe head 16 and the second pipe head 17 are the same as the inner diameter of the drive shaft.

[0026] It should be noted that the first pipe head 16 and the second pipe head 17, whose dimensions are the same as the inner diameter of the drive shaft, can support the drive shaft more stably.

[0027] Preferably, the base 1 is provided with a shaft bracket.

[0028] It should be noted that the shaft bracket is used to provide auxiliary support for the drive shaft.

[0029] Preferably, the measuring head 23 needs to be kept in close contact with the inner wall of the drive shaft during detection.

[0030] It should be noted that ensuring the measuring head 23 is pressed tightly against the inner wall of the drive shaft allows for accurate detection of the inner hole's precision.

[0031] 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 measuring mechanism for the inner bore of an MB vacuum pump drive shaft, comprising a base; the base supports the entire mechanism component, characterized in that, The base is equipped with a drive groove, a lead screw, a lead screw slider, a handle, a clamping frame, a moving frame, and an internal hole accuracy measurement and detection component. The drive slots are opened on both sides inside the base, the lead screw is installed in the drive slots, the lead screw slider is fitted on the lead screw, the handle is connected to the lead screw, and the bottom of the clamping frame and the moving frame are distributed and connected to the lead screw slider. The internal hole accuracy measurement and detection component includes: a transmission groove, a wrench holder, a rotating shaft, a telescopic groove, a telescopic column, a hinge seat, a swing arm, a first pipe top, a second pipe top, a return spring, a moving groove, a moving column, a handle, a mounting groove, a measuring head, a bracket, and a dial indicator. The transmission groove begins on the clamping frame. The wrench holder is mounted on the opening above the transmission groove via a rotating shaft. The telescopic groove is opened at the bottom of the wrench holder. The telescopic column is installed in the telescopic groove. The hinge is installed at the bottom of the telescopic column. The first pipe tip is installed in the transmission groove. The swing arm is installed on the hinge and connected to the rear of the first pipe tip. The return spring is mounted between the rear wall of the transmission groove and the first pipe tip. The second pipe tip is fixedly installed on the moving frame. The moving groove is opened on the moving frame. The moving column is installed on the moving groove. The handle is connected to the rear end of the moving column. The mounting groove is opened at the front of the moving column. The dial indicator is installed on the moving column. The bracket passes through the mounting groove and is connected to the measuring end of the dial indicator. The measuring head is installed on the bracket.

2. The MB vacuum pump drive shaft inner hole accuracy measuring mechanism according to claim 1, characterized in that, The dimensions of the first pipe tip and the second pipe tip are the same as the inner diameter of the drive shaft.

3. The MB vacuum pump drive shaft inner hole accuracy measuring mechanism according to claim 1, characterized in that, The base is equipped with a shaft bracket.

4. The MB vacuum pump drive shaft inner hole accuracy measuring mechanism according to claim 1, characterized in that, The measuring head needs to be kept in close contact with the inner wall of the drive shaft during testing.

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