A three-lobed roto-rotor profile grinding special tool

Abstract

The utility model relates to three -lobe roots rotor processing equipment technical field, concretely for a kind of three -lobe roots rotor profile grinding special frock, including bottom plate, the bottom plate top two sides symmetry fixed mounting has mounting bracket, slidingly setting mounting plate on mounting bracket, the slider is slidably arranged in mounting bracket, slider outer wall is fixedly connected with mounting plate, mounting plate is set up mounting shell, shaft and mounting disc by fixed plate, electric push rod is fixedly installed on mounting disc inner wall, electric push rod telescopic arm terminal fixed mounting has clamping block.This device moves by electric push rod to push clamping block, different size specifications of three -lobe roots rotor raw material can be clamped and fixed, and anti -skid grain is set in clamping block inner wall, the stability of clamping is enhanced, product quality and production efficiency are improved, simultaneously, utilize second motor to drive worm rotation, and then pass through worm gear to drive shaft rotation, realize the angle adjustment of three -lobe roots rotor raw material.

Description

Technical Field

[0001] This utility model relates to the technical field of three-lobe roots rotor processing equipment, specifically a special tooling for three-lobe roots rotor profile wire grinding. Background Technology

[0002] In the field of mechanical manufacturing, the three-lobe Roots rotor, as a key component, is widely used in various vacuum pumps, compressors, and other equipment. The accuracy and quality of its profile directly affect the performance and operating efficiency of the equipment. Therefore, high-precision profile grinding of the three-lobe Roots rotor is of paramount importance.

[0003] Traditional fixtures for grinding the profiles of three-lobe Roots rotors have several limitations. Firstly, in terms of clamping and fixing, they are difficult to adapt to raw materials of different sizes and specifications. For rotors with significant dimensional differences, specific fixtures often need to be changed, which not only increases production costs but also reduces production efficiency. Furthermore, the stability of the clamping is difficult to guarantee; during grinding, the rotor may shift due to insecure clamping, leading to a decrease in profile machining accuracy and affecting product quality. Secondly, during machining, the angle and height of the three-lobe Roots rotor need to be adjusted to meet the requirements of different machining areas. However, traditional fixtures lack an effective self-locking mechanism when adjusting the angle, and the adjusted angle is easily changed by external forces or machining vibrations, failing to guarantee the accuracy of the machining angle. Therefore, we propose a dedicated fixture for grinding the profiles of three-lobe Roots rotors. Utility Model Content

[0004] The purpose of this invention is to provide a special tooling for three-lobe roots rotor profile grinding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base plate, on which mounting frames are symmetrically fixedly installed on both sides of the top of the base plate. A mounting plate is slidably mounted on the mounting frames. A slider is slidably mounted inside the mounting frames, and the outer wall of the slider is fixedly connected to the mounting plate. A fixing plate is fixedly mounted at the front end of the mounting plate. A mounting shell is fixedly mounted on the outer wall of the fixing plate. A rotating shaft is rotatably mounted on the mounting shell via a bearing, passing through the fixing plate and rotatably connected to it. A mounting disc is fixedly mounted at the inner end of the rotating shaft. An electric push rod is fixedly mounted on the inner wall of the mounting disc. A clamping block is fixedly mounted at the end of the telescopic arm of the electric push rod. A worm gear is keyed to the rotating shaft inside the mounting shell. A worm is also rotatably mounted on the mounting shell, and the worm gear meshes with the worm.

[0006] Preferably, the mounting bracket is further provided with a threaded rod that rotatably passes through the slider and is threadedly connected to the slider. The base plate is further provided with a cavity, and the threaded rod passes through the base plate and extends into the cavity.

[0007] Preferably, a first synchronous pulley is connected to the threaded rod above the cavity via a key, and a drive shaft is rotatably mounted in the cavity of the base plate via a bearing. A second synchronous pulley is connected to the drive shaft via a key, and the second synchronous pulley is connected to the first synchronous pulley via a transmission belt.

[0008] Preferably, the inner wall of the clamping block is provided with anti-slip texture.

[0009] Preferably, a first motor is also fixedly installed on the top of the base plate. The first motor is a self-locking motor, and the power output shaft of the first motor is fixedly connected to the drive shaft through a coupling.

[0010] Preferably, a second motor is also fixedly installed on the outer wall of the mounting housing, and the power output shaft of the second motor is fixedly connected to the worm gear through a coupling.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By moving the clamping block through the electric push rod, raw materials of three-lobe roots rotors of different sizes can be clamped and fixed. The inner wall of the clamping block is provided with anti-slip texture, which enhances the stability of clamping and avoids the problem of rotor displacement caused by unstable clamping in traditional tooling, which affects the processing accuracy. This improves product quality and production efficiency, while reducing the production cost caused by changing specific fixtures. At the same time, the second motor drives the worm to rotate, which in turn drives the shaft to rotate through the worm wheel, realizing the angle adjustment of the raw materials of three-lobe roots rotors. Furthermore, the self-locking function of the worm wheel and worm keeps the adjusted angle stable, ensuring the accuracy of the processing angle.

[0012] In addition, the first motor drives the drive shaft to rotate, and through the transmission of the synchronous pulley and the transmission belt, the threaded rods on both sides rotate synchronously, thereby driving the slider and the mounting plate to move, realizing the adjustment of the material height of the three-lobe roots rotor to meet the needs of different processing parts. At the same time, since the first motor is a self-locking motor, the adjusted height can be maintained stably, meeting the strict requirements for precision and stability in actual processing, and effectively improving the overall quality and efficiency of the three-lobe roots rotor profile grinding process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the mounting bracket of this utility model;

[0015] Figure 3 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0016] Figure 4 For the present utility model Figure 2Enlarged view of the structure at point B in the middle.

[0017] The components represented by each number in the attached diagram are listed below: 1. Base plate; 2. Mounting bracket; 3. Slider; 4. Mounting plate; 5. Threaded rod; 6. Drive shaft; 7. First synchronous pulley; 8. Second synchronous pulley; 9. Transmission belt; 10. First motor; 11. Fixing plate; 12. Mounting housing; 13. Rotating shaft; 14. Mounting disc; 15. Electric push rod; 16. Clamping block; 17. Worm gear; 18. Worm; 19. Second motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0019] This utility model provides a technical solution: such as Figures 1-4 The tooling shown includes a base plate 1, on which mounting brackets 2 are symmetrically fixedly mounted on both sides of the top of the base plate 1. A mounting plate 4 is slidably mounted on the mounting brackets 2. A slider 3 is slidably mounted inside the mounting brackets 2. The outer wall of the slider 3 is fixedly connected to the mounting plate 4. The slider 3 can drive the mounting plate 4 to move on the mounting brackets 2. A threaded rod 5 is also rotatably mounted inside the mounting brackets 2. The threaded rod 5 passes through the slider 3 and is threadedly connected to the slider 3. Rotating the threaded rod 5 can drive the mounting plate 4 to move on the mounting brackets 2 through the slider 3.

[0020] A fixing plate 11 is fixedly installed at the front end of mounting plate 4. A mounting shell 12 is fixedly installed on the outer wall of fixing plate 11. A rotating shaft 13 is rotatably mounted on mounting shell 12 via a bearing. The rotating shaft 13 passes through fixing plate 11 and is rotatably connected to fixing plate 11. A mounting plate 14 is fixedly installed at the inner end of rotating shaft 13. An electric push rod 15 is fixedly installed on the inner wall of mounting plate 14. A clamping block 16 is fixedly installed at the end of the telescopic arm of electric push rod 15. The inner wall of clamping block 16 is provided with anti-slip texture. When it is necessary to profile the three-lobe Roots rotor, the worker will... The raw material for the three-lobe roots rotor is placed between the clamping blocks 16 on both sides. At the same time, the clamping blocks 16 are moved by the electric push rod 15 to clamp and fix the raw material for the three-lobe roots rotor. Under the action of the rotating shaft 13, the raw material for the three-lobe roots rotor can be rotated by the mounting plate 14, so as to better process the profile of the three-lobe roots rotor. This not only ensures the quality of subsequent processing of the three-lobe roots rotor, but also meets the requirements for clamping and fixing raw materials of three-lobe roots rotors of different sizes, thereby improving the applicability of the device to a certain extent.

[0021] A worm gear 17 is keyed and installed on the shaft 13 inside the mounting housing 12. A worm 18 is also rotatably mounted on the mounting housing 12. The worm 18 meshes with the worm gear 17. Rotating the worm 18 will drive the shaft 13 to rotate via the worm gear 17. This not only allows for angle adjustment of the three-lobe roots rotor material, but also, due to the self-locking function of the worm gear 17 and worm 18, limits the angle of rotation of the three-lobe roots rotor material, thus ensuring the subsequent processing quality of the three-lobe roots rotor material. A second motor 19 is also fixedly installed on the outer wall of the mounting housing 12. The power output shaft of the second motor 19 is fixedly connected to the worm 18 via a coupling. The second motor 19 can then drive the worm 18 to rotate.

[0022] The base plate 1 also has a cavity inside. The threaded rod 5 passes through the base plate 1 and extends into the cavity. Above the threaded rod 5, inside the cavity, a first synchronous pulley 7 is connected by a key. A drive shaft 6 is also rotatably mounted in the cavity inside the base plate 1 via bearings. A second synchronous pulley 8 is connected to the drive shaft 6 via a key. The second synchronous pulley 8 and the first synchronous pulley 7 are connected by a transmission belt 9. At this time, the drive shaft 6, the first synchronous pulley 7, and the second synchronous pulley 8 can drive the threaded rods 5 on both sides to rotate synchronously, thereby adjusting the height of the three-lobe roots rotor material to meet the actual processing requirements. A first motor 10 is also fixedly installed on the top of the base plate 1. The first motor 10 is a self-locking motor. The power output shaft of the first motor 10 is fixedly connected to the drive shaft 6 via a coupling. At this time, the first motor 10 can drive the shaft 6 to rotate, thereby adjusting the height of the three-lobe roots rotor material. In addition, because the first motor 10 is a self-locking motor, the height of the three-lobe roots rotor material after adjustment can be limited, thereby ensuring the processing quality of the three-lobe roots rotor material.

[0023] Working principle: First, the raw materials of different sizes of three-lobe roots rotor are clamped and fixed. The raw material is placed between the two clamping blocks 16, the electric push rod 15 extends and pushes the clamping blocks 16 to move, and the anti-slip texture of the inner wall of the clamping blocks 16 is used to achieve a stable clamping of the raw material.

[0024] When the angle of the raw material for the three-lobe roots rotor needs to be adjusted, the second motor 19 is started, and its power output shaft drives the worm 18 to rotate via a coupling. Since the worm 18 meshes with the worm wheel 17, and the worm wheel 17 is keyed to the rotating shaft 13, the rotation of the worm 18 will drive the worm wheel 17 to rotate, thereby causing the rotating shaft 13 to rotate. The rotating shaft 13 passes through the fixed plate 11 and is rotatably connected to the fixed plate 11. An installation plate 14 is installed at its inner end, and an electric push rod 15 on the inner wall of the installation plate 14 is connected to a clamping block 16. In this way, the rotation of the rotating shaft 13 can drive the raw material of the three-lobe roots rotor to rotate, thereby achieving angle adjustment. At the same time, thanks to the self-locking function of the worm wheel 17 and the worm 18, the angle of the raw material after rotation can be kept stable.

[0025] To adjust the height of the raw material in the three-lobe roots rotor, the first motor 10, which is a self-locking motor, is started. The power output shaft drives the drive shaft 6 to rotate via a coupling. The second synchronous pulley 8 on the drive shaft 6 is connected to the first synchronous pulley 7 above the threaded rod 5 via a transmission belt 9. Therefore, the rotation of the drive shaft 6 will drive the threaded rods 5 on both sides to rotate synchronously. The threaded rod 5 passes through the slider 3 and is threadedly connected to the slider 3. The outer wall of the slider 3 is fixedly connected to the mounting plate 4. The rotation of the threaded rod 5 causes the slider 3 to move, which in turn drives the mounting plate 4 to move on the mounting frame 2, thereby adjusting the height of the raw material in the three-lobe roots rotor. The adjusted height is maintained by the self-locking function of the first motor 10, ensuring the quality of subsequent processing.

[0026] 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.

[0027] 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 tooling for linear grinding of a three-lobe Roots rotor profile, comprising a base plate (1), characterized in that: Mounting brackets (2) are symmetrically fixedly installed on both sides of the top of the base plate (1). Mounting plates (4) are slidably mounted on the mounting brackets (2). Sliding blocks (3) are slidably mounted inside the mounting brackets (2). The outer wall of the sliding blocks (3) is fixedly connected to the mounting plates (4). A fixing plate (11) is fixedly installed at the front end of the mounting plate (4). A mounting shell (12) is fixedly installed on the outer wall of the fixing plate (11). A rotating shaft (13) is rotatably mounted on the mounting shell (12) via a bearing. The rotating shaft (13) passes through the fixing plate (11). 11) And it is rotatably connected to the fixed plate (11). The inner end of the rotating shaft (13) is fixedly installed with a mounting plate (14). An electric push rod (15) is fixedly installed on the inner wall of the mounting plate (14). A clamping block (16) is fixedly installed at the end of the telescopic arm of the electric push rod (15). A worm wheel (17) is provided on the rotating shaft (13) inside the mounting shell (12) by a key connection. A worm (18) is also rotatably provided on the mounting shell (12). The worm (18) and the worm wheel (17) mesh with each other.

2. The special tooling for linear grinding of a three-lobe Roots rotor according to claim 1, characterized in that: The mounting bracket (2) is also rotatably provided with a threaded rod (5), which passes through the slider (3) and is threadedly connected to the slider (3). The base plate (1) is also provided with a cavity, and the threaded rod (5) passes through the base plate (1) and extends into the cavity.

3. The special tooling for linear grinding of a three-lobe Roots rotor according to claim 2, characterized in that: The threaded rod (5) is located inside the cavity and is connected by a key to a first synchronous pulley (7). The base plate (1) is also connected to a drive shaft (6) through a bearing. The drive shaft (6) is connected by a key to a second synchronous pulley (8). The second synchronous pulley (8) and the first synchronous pulley (7) are connected by a transmission belt (9).

4. The special tooling for profile grinding of a three-lobe Roots rotor according to claim 1, characterized in that: The inner wall of the clamping block (16) is provided with anti-slip texture.

5. A special tooling for linear grinding of a three-lobe Roots rotor according to claim 3, characterized in that: The top of the base plate (1) is also fixedly installed with a first motor (10), which is a self-locking motor. The power output shaft of the first motor (10) is fixedly connected to the drive shaft (6) through a coupling.

6. The special tooling for profile grinding of a three-lobe Roots rotor according to claim 1, characterized in that: A second motor (19) is also fixedly installed on the outer wall of the mounting housing (12). The power output shaft of the second motor (19) is fixedly connected to the worm gear (18) through a coupling.

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