A kind of vacuum pump with the amount of tooling

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By designing a vacuum pump calibrator with a crossbeam, legs, and sliding seat, the problem of unstable tool fixation during multi-axis calibration of vacuum pumps was solved, achieving efficient and accurate measurement and calibration.

CN224534934UActive Publication Date: 2026-07-21BEIJING YISHENG PRECISION SEMICON CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: BEIJING YISHENG PRECISION SEMICON CO LTD
Filing Date: 2025-08-25
Publication Date: 2026-07-21

AI Technical Summary

Technical Problem

In the multi-axis calibration process of existing vacuum pumps, the sliding tool is difficult to fix, which leads to measurement errors and inaccurate calibration, affecting operational stability and efficiency.

Method used

A calibrator tool for vacuum pumps was designed, including a crossbeam, legs, a sliding seat, and a dial indicator. Through structures such as a locking strip, guide groove, and locking handle, the tool can be stably installed and accurately measured.

Benefits of technology

It improves the stability and accuracy of measurements, solves the error problem caused by the displacement of the sliding tool, and enhances operational efficiency and safety.

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Abstract

The utility model belongs to the technical field of vacuum pump channeling amount, specifically relates to a kind of channeling amount tools for vacuum pump, including crossbeam, support leg and sliding seat, crossbeam both ends connect support leg, support leg is installed on vacuum pump by fixed plate, sliding seat is slidably connected on crossbeam, sliding seat includes base, cover and mounting seat, base and cover snap crossbeam, cover is equipped with sighting notch for observing scale line on crossbeam, base is equipped with positioning column and spring, positioning column realizes the fixation or release of sliding seat by locking handle, mounting seat is connected micrometer by thread, micrometer measuring end is contacted with the X axis or Y axis of vacuum pump to realize high-precision channeling amount measurement, support leg top is equipped with clamping strip and the guiding slot of crossbeam snap to ensure the stability of overall structure and the accuracy of operation, tool design compact, installation is convenient, operation is flexible, effectively solved the measurement error problem caused by tool unstable sliding and not firm installation in prior art.

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Description

Technical Field

[0001] This utility model belongs to the field of vacuum pump calibration technology, specifically relating to a calibration tool for vacuum pumps. Background Technology

[0002] Vacuum pumps are widely used in industrial production, primarily to provide negative pressure conditions for vacuum environments. Their performance significantly impacts equipment operating efficiency and product quality. In practical applications, the performance of a vacuum pump is not only related to its structural design and manufacturing process but also affected by precise calibration during installation and commissioning. This is especially true in multi-axis operations, where the alignment and calibration of the X and Y axes are crucial for operational stability and accuracy.

[0003] In existing technologies, the axial position of vacuum pumps is typically adjusted manually or with simple tools, but these methods have several shortcomings. For example, during the adjustment process, sliding tools are often difficult to fix effectively, and measurement errors can easily occur due to the movement of the sliding seat. Furthermore, due to the simple design of the tools, it is difficult to simultaneously and accurately measure and adjust the calibration status of multiple axes. In such cases, not only is calibration efficiency reduced, but it may also lead to operational problems in the vacuum pump due to inaccurate calibration, such as increased vibration, decreased efficiency, and even shortened equipment lifespan. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a calibrator tool for vacuum pumps that not only has stable fixing capability but also can be flexibly adjusted to adapt to various application scenarios, thereby meeting the needs of modern industry for efficient and accurate calibration tools.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A calibrating tool for a vacuum pump includes a crossbeam with legs connected to both ends. During calibration, one end of each leg is connected to the vacuum pump.

[0007] A sliding seat is slidably connected to the crossbeam;

[0008] The sliding seat includes a base that engages with a crossbeam, a cover plate connected to the top of the base, and the crossbeam located between the base and the cover plate;

[0009] The upper surface of the crossbeam is provided with graduation lines, and one end of the cover plate is provided with a sight groove;

[0010] When the sliding seat slides on the crossbeam, the scale lines can be observed through the sight groove;

[0011] A mounting base is fixedly connected to one end of the base, and a dial indicator is connected to the mounting base.

[0012] Furthermore, guide grooves are provided on both sides of the crossbeam;

[0013] The top of the base has a slot, the crossbeam is located in the slot, and guide strips are fixedly connected to both sides of the slot. The guide strips are inserted into the guide groove.

[0014] Furthermore, the upper end face of the crossbeam is symmetrically provided with a through groove, and a positioning post is fixedly connected to the center of the inner side of the positioning groove. A spring is sleeved on the positioning post, and the positioning post passes through the through groove.

[0015] A pin plate is fixedly connected to the top of the positioning post, and a locking handle is rotatably connected to the pin plate. The locking handle is located above the cover plate.

[0016] A through hole is provided at the center of the top of the cover plate, through which the pin plate passes;

[0017] One end of the locking handle is fixedly connected to a positioning head. A movable groove is opened through one side of the positioning head, and a pin plate is located in the movable groove. A pin hole is opened through the side of the positioning head.

[0018] Furthermore, the top of the base is symmetrically provided with a second threaded groove, and the upper end face of the cover plate is provided with a second connecting hole corresponding to the second threaded groove.

[0019] Screws are connected to the second connecting hole and the second threaded groove.

[0020] Furthermore, a threaded hole is provided through the upper end face of the mounting base, and a connector is provided on the outside of the dial indicator to be connected to the threaded hole.

[0021] Furthermore, both ends of the crossbeam are symmetrically provided with first threaded grooves, and the top side of the support leg is provided with a first connecting hole corresponding to the first threaded groove.

[0022] The top side of the outrigger is symmetrically fixed with locking strips. When the outrigger and the crossbeam are connected, the locking strips are locked into the guide groove.

[0023] Furthermore, a fixing plate is fixedly connected to one side of the bottom of the support leg, and a fixing hole is symmetrically opened through the upper end of the fixing plate.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This vacuum pump calibrator achieves stable mounting on the vacuum pump through the cooperative design of the crossbeam and support legs. The locking strip at the top of the support legs, in conjunction with the guide grooves on both sides of the crossbeam, not only enhances the structural connection's robustness but also ensures accurate positioning during tool installation, thus resolving the measurement deviation problem caused by loose connections in existing technologies. The fixing holes on the mounting plate further ensure reliable mounting of the tool on the vacuum pump, improving measurement stability and safety.

[0026] The sliding seat's structural design fully considers both sliding stability and fixing flexibility. The sliding seat achieves a sliding connection through the engagement of the base, cover plate, and crossbeam. The cooperation between the guide strip and guide groove ensures consistent sliding direction and prevents wobbling. The locking mechanism at the top of the sliding seat, through the cooperation of the locking handle and the positioning pin, allows the sliding seat to be precisely fixed when needed, thus solving the problem of easy displacement of sliding tools during measurement in existing technologies. Simultaneously, when fixing is not required, adjusting the locking handle allows the sliding seat to slide freely, increasing operational flexibility.

[0027] The tool design incorporates an observation structure between the scale lines on the crossbeam and the sight groove on the cover plate, facilitating rapid adjustment of the slider's position. Users can clearly read the scale line position through the sight groove, allowing for intuitive adjustment of the slider and improving operational efficiency and measurement convenience. This design solves the problem of complex adjustments caused by the difficulty in observing the scale in traditional tools.

[0028] The design of the mounting base and the connection structure of the dial indicator ensures a tight fit between the measuring tool and the vacuum pump. The mounting base mates with the dial indicator's connector via a threaded hole, allowing the dial indicator to be stably mounted on the tool and in contact with the X-axis or Y-axis surface of the vacuum pump, thus achieving high-precision axial displacement measurement. Compared with prior art, this design effectively solves the problem of unstable dial indicator installation and improves measurement reliability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the crossbeam structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the support leg of this utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the sliding seat of this utility model;

[0033] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Crossbeam;

[0036] 11. Through groove; 12. Scale line; 13. First threaded groove; 14. Guide groove;

[0037] 2. Support legs;

[0038] 21. Locking strip; 22. First connecting hole; 23. Fixing plate; 231. Fixing hole;

[0039] 3. Sliding seat;

[0040] 31. Base; 311. Slot; 3111. Guide bar; 312. Second threaded groove;

[0041] 32. Mounting base; 321. Threaded hole;

[0042] 33. Cover plate; 331. Through hole; 332. Aiming slot; 333. Second connecting hole;

[0043] 34. Positioning post; 341. Pin joint plate;

[0044] 35. Spring;

[0045] 36. Locking handle; 361. Positioning head; 362. Movable groove; 363. Pin hole;

[0046] 37. Screws;

[0047] 4. Dial indicator; 41. Connector. Detailed Implementation

[0048] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0049] See Figure 1-5 A calibrating tool for a vacuum pump includes a crossbeam 1, with legs 2 connected to both ends of the crossbeam 1. One end of each leg 2 is fixed to the vacuum pump using screws through fixing holes 231 on a fixing plate 23. A locking strip 21 is symmetrically fixed to one side of the top of each leg 2. The locking strip 21 is inserted into guide grooves 14 opened on both sides of the crossbeam 1, thereby ensuring the stability of the connection between the legs 2 and the crossbeam 1 and ensuring accurate positioning. During calibrating, this stable structure ensures the accuracy of the measurement.

[0050] A sliding seat 3 is slidably connected to the crossbeam 1. The sliding seat 3 includes a base 31 that engages with the crossbeam 1. A cover plate 33 is connected to the top of the base 31 via a second threaded groove 312 and a screw 37. The crossbeam 1 is located between the base 31 and the cover plate 33. A through hole 331 is provided at the center of the top of the cover plate 33. A guide strip 3111 is provided in the top slot 311 of the base 31. The guide strip 3111 engages with the guide grooves 14 on both sides of the crossbeam 1, so that the sliding seat 3 can slide smoothly on the crossbeam 1 and maintain a consistent direction. A sight groove 332 is provided at one end of the cover plate 33. The scale line 12 on the upper surface of the crossbeam 1 can be clearly observed through the sight groove 332, so as to facilitate the adjustment of the specific position of the sliding seat 3.

[0051] See Figure 2-4 A mounting base 32 is fixedly connected to the top side of the base 31. A threaded hole 321 is opened through the upper end face of the mounting base 32. A connector 41 for mounting a dial indicator 4 is connected inside the threaded hole 321. The measuring end of the dial indicator 4 can directly contact the X-axis or Y-axis surface of the vacuum pump to achieve accurate axial measurement. This structure ensures the stability of the dial indicator 4 during installation and use.

[0052] See Figure 4-5 A positioning post 34 is fixedly connected to the center of the inner side of the base 31. The positioning post 34 passes through the through slot 11 opened through the upper end face of the crossbeam 1. A pin plate 341 is fixedly connected to the top of the positioning post 34. A locking handle 36 is rotatably connected to the pin plate 341. The locking handle 36 is located above the cover plate 33. A positioning head 361 is fixedly connected to one end of the locking handle 36. A pin hole 363 is opened through the side of the positioning head 361. The pin hole 363 is used to engage with the pin plate 341. The locking handle 36 is rotated so that it can flip. When the locking handle 36 is rotated to be in line with the positioning post 34, the lower end of the positioning head 361 will press the cover plate 33, so that the cover plate 33 is in close contact with the crossbeam 1, thereby fixing the position of the sliding seat 3 and avoiding measurement errors caused by sliding. When the locking handle 36 is perpendicular to the positioning post 34, the positioning head 361 separates from the cover plate 33 under the elastic force of the spring 35, and the sliding seat 3 can move flexibly along the crossbeam 1.

[0053] See Figure 1-3 The two ends of the crossbeam 1 are symmetrically provided with first threaded grooves 13, and the top side of the support leg 2 is provided with a first connecting hole 22 corresponding to the first threaded groove 13. The support leg 2 is connected to the crossbeam 1 through the first connecting hole 22 and screws, ensuring the overall rigid structure of the entire calibrating tool.

[0054] See Figure 4The upper end face of the cover plate 33 is provided with a second connecting hole 333 corresponding to the second threaded groove 312 on the top of the base 31. The second connecting hole 333 and the second threaded groove 312 are tightly connected by screws 37, which further improves the assembly stability of the cover plate 33 and the base 31.

[0055] See Figure 3 A fixing plate 23 is fixedly connected to one side of the bottom of the support leg 2. A fixing hole 231 is symmetrically opened on the upper end of the fixing plate 23. The fixing plate 23 securely connects the support leg 2 to the vacuum pump through the fixing hole 231, thereby ensuring the support stability of the vacuum pump during the flow measurement process.

[0056] The working principle of this utility model is as follows:

[0057] In use, first use screws to connect the fixing plate 23 to the end of the vacuum pump with the X and Y axes. Then, by sliding the position of the sliding seat 3 on the crossbeam 1, let the measuring ends of the two dial gauges 4 rest on the X and Y axes respectively. Then, move the locking handle 36 by hand to make the locking handle 36 and the positioning column 34 be in the same straight line. At this time, the positioning head 361 will press against the cover plate 33. Under the pressure of the positioning head 361, the cover plate 33 will be tightly fitted to the crossbeam 1. In this way, when using the adjusting ring wrench for calibration, the position of the sliding seat 3 will not move, thereby improving the accuracy of calibration.

[0058] When it is not necessary to fix the position of the sliding seat 3, simply move the locking handle 36 so that it is perpendicular to the positioning post 34. At this time, the positioning head 361 will separate from the cover plate 33. Under the elastic compression of the spring 35, the cover plate 33 will separate from the crossbeam 1, so that the base 31 can slide flexibly on the crossbeam 1.

[0059] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A calibrator for a vacuum pump, characterized in that: Includes a crossbeam (1), both ends of which are connected to support legs (2). During the axial movement, one end of the support leg (2) is connected to the vacuum pump. A sliding seat (3) is slidably connected to the crossbeam (1); The sliding seat (3) includes a base (31) that engages with the crossbeam (1), a cover plate (33) connected to the top of the base (31), and the crossbeam (1) located between the base (31) and the cover plate (33); The upper end face of the crossbeam (1) is provided with scale lines (12), and one end of the cover plate (33) is provided with a sight groove (332); When the sliding seat (3) slides on the crossbeam (1), the scale line (12) can be observed from the sight groove (332); One end of the base (31) is fixedly connected to the mounting base (32), and a dial indicator (4) is connected to the mounting base (32).

2. The calibrator tool for a vacuum pump according to claim 1, characterized in that: Guide grooves (14) are provided on both sides of the crossbeam (1); The top of the base (31) is provided with a slot (311), and the crossbeam (1) is located in the slot (311). Guide strips (3111) are fixedly connected to both sides of the slot (311), and the guide strips (3111) are inserted into the guide groove (14).

3. The calibrator tool for a vacuum pump according to claim 2, characterized in that: The upper end face of the crossbeam (1) is symmetrically provided with a through groove (11), and a positioning post (34) is fixedly connected to the center of the inner side of the positioning groove (311). A spring (35) is sleeved on the positioning post (34), and the positioning post (34) passes through the through groove (11). The top of the positioning post (34) is fixedly connected to a pin plate (341), and a locking handle (36) is rotatably connected to the pin plate (341). The locking handle (36) is located above the cover plate (33). A through hole (331) is provided at the top center of the cover plate (33), and the pin plate (341) passes through the through hole (331); One end of the locking handle (36) is fixedly connected to a positioning head (361). A movable groove (362) is provided through one side of the positioning head (361). A pin plate (341) is located in the movable groove (362). A pin hole (363) is provided through the side of the positioning head (361).

4. A calibrator for a vacuum pump according to claim 3, characterized in that: The top of the base (31) is symmetrically provided with a second threaded groove (312), and the upper end face of the cover plate (33) is provided with a second connecting hole (333) corresponding to the second threaded groove (312); A screw (37) is connected to the second connecting hole (333) and the second threaded groove (312).

5. A calibrator for a vacuum pump according to claim 1, characterized in that: The upper end face of the mounting base (32) is provided with a threaded hole (321), and the outside of the dial indicator (4) is provided with a connector (41) connected to the threaded hole (321).

6. A calibrator for a vacuum pump according to claim 2, characterized in that: The crossbeam (1) has a first threaded groove (13) symmetrically opened at both ends, and the support leg (2) has a first connecting hole (22) corresponding to the first threaded groove (13) through one side of the top. A locking strip (21) is symmetrically fixed to one side of the top of the outrigger (2). When the outrigger (2) and the crossbeam (1) are connected, the locking strip (21) is inserted into the guide groove (14).

7. A calibrator for a vacuum pump according to claim 6, characterized in that: A fixing plate (23) is fixedly connected to one side of the bottom of the support leg (2), and a fixing hole (231) is symmetrically opened through the upper end of the fixing plate (23).