An oil-free screw rotor sealing rib inspection fixing tool

Abstract

This utility model discloses a fixture for inspecting and fixing the sealing ribs of an oilless screw rotor. It includes a worktable, a fixture body, and a pressure plate mechanism. The fixture body and pressure plate mechanism are movably mounted on the worktable, with the pressure plate mechanism circumferentially positioned around the fixture body, fixing the fixture body to the worktable. The fixture body includes a base plate, a positioning block, a support block, and a fixing mechanism. The base plate is movably mounted on the worktable, with a positioning hole at its center. A positioning block is mounted on the base plate, positioned above the positioning hole, and has a mounting groove at its center. A support block is mounted on the top surface of the positioning block, surrounding the mounting groove. The fixing mechanism is positioned on the bottom surface of the positioning block, located within the positioning hole. The fixing mechanism, mounting groove, and positioning hole are concentrically arranged. This utility model eliminates the need to prepare corresponding fixing fixtures for different models of oilless screw rotors, significantly reducing production costs.

Description

Technical fields:

[0001] This utility model belongs to the field of oil-free screw rotor production technology, and specifically relates to an inspection and fixing fixture for the sealing ribs of an oil-free screw rotor. Background technology:

[0002] In the machining process of oil-free screw rotors, the rotor profile is first machined on a rotor grinder, and then the sealing ribs of the oil-free screw rotor are milled in a horizontal machining center. After machining, the dimensions of the sealing ribs of the oil-free screw rotor need to be inspected. After the oil-free screw rotor is fixed, the sealing ribs are measured using an edge finder to check whether the dimensions of the sealing ribs are qualified.

[0003] Different models of oilless screw rotors have different dimensions, and even the same oilless screw rotor has different sealing rib dimensions. During testing, appropriate fixtures must be selected to ensure the edge finder can measure the sealing ribs at the appropriate distance. Designing a fixture that can adapt to different models of oilless screw rotors and reduce production costs is a problem that needs to be solved.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content:

[0005] The purpose of this utility model is to provide an inspection and fixing fixture for the sealing ribs of an oilless screw rotor, thereby overcoming the defects in the prior art.

[0006] To achieve the above objectives, this utility model provides a fixture for inspecting and fixing the sealing ribs of an oilless screw rotor, including a worktable, a fixture body, and a pressure plate mechanism. The fixture body and pressure plate mechanism are movably mounted on the worktable, with the pressure plate mechanism circumferentially positioned around the fixture body, fixing the fixture body to the worktable. The fixture body includes a base plate, a positioning block, a support block, and a fixing mechanism. The base plate is movably mounted on the worktable, with a positioning hole at its center. A positioning block is mounted on the base plate, positioned above the positioning hole, and has a mounting groove at its center. A support block is mounted on the top surface of the positioning block, surrounding the mounting groove. The fixing mechanism is positioned on the bottom surface of the positioning block, located within the positioning hole. The fixing mechanism, mounting groove, and positioning hole are concentrically arranged. The front end of the oilless screw rotor is placed in the mounting groove, the support block supports the sealing rib, and the fixing mechanism fixes the oilless screw rotor, aligning the center of the oilless screw rotor with the center of the positioning hole.

[0007] Preferably, in the technical solution, the fixing mechanism includes a pad and a fixing screw. The pad is set on the bottom surface of the positioning block and is concentric with the mounting groove. A fixing screw is set at the center of the pad. The oilless screw rotor is fixed by the fixing screw, and the center of the oilless screw rotor is aligned with the center of the positioning hole.

[0008] Preferably, in the technical solution, the workbench is provided with horizontal grooves and vertical grooves, the intersection of the horizontal grooves and the vertical grooves serves as the positioning point of the base plate center, and the pressure plate mechanism is set in the vertical grooves at the four corners of the base plate.

[0009] Preferably, in the technical solution, the pressure plate mechanism includes a T-slot nut, a double-ended stud, a shoulder nut, a pressure plate, and a height adjusting bolt. The height adjusting bolt is equipped with a pressure plate, and the double-ended stud is mounted on the pressure plate. The two ends of the double-ended stud are connected to the T-slot nut and the shoulder nut, respectively. The height of the pressure plate is adjusted by the height adjusting bolt. The T-slot nut cooperates with the longitudinal groove structure. The pressure plate is positioned at an angle towards the bottom plate, and the pressure plate contacts the top surface of the bottom plate. The pressure plate fixes the bottom plate to the worktable.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] By adjusting the position of the tooling on the worktable, the sealing ribs of different models of oilless screw rotors are kept at a suitable distance from the edge finder, facilitating the edge finder's detection of the sealing rib dimensions. This eliminates the need to prepare corresponding fixed tooling for different models of oilless screw rotors, significantly reducing production costs. Attached image description:

[0012] Figure 1 This is the main view of the inspection and fixing fixture for the oil-free screw rotor sealing ribs of this utility model;

[0013] Figure 2 This is a diagram showing the usage status of the inspection and fixing fixture for the oil-free screw rotor sealing rib of this utility model. Detailed implementation method:

[0014] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0015] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0016] like Figure 1-2As shown, a fixture for inspecting and fixing the sealing ribs of an oilless screw rotor includes a worktable 1, a fixture body 2, and a pressure plate mechanism 3. The fixture body 2 and the pressure plate mechanism 3 are movably mounted on the worktable 1. The worktable 1 has a transverse groove 10 and a longitudinal groove 11, the intersection of which serves as the positioning point for the center of the base plate 20. The pressure plate mechanism 3 is located within the longitudinal grooves 11 at the four corners of the base plate 20. The fixture body 2 includes a base plate 20, a positioning block 21, a support block 22, a pad block 23, and fixing screws 24. The base plate 20 is movably mounted on the worktable 1. A positioning hole 25 is provided at the center of the base plate 20. The positioning block 21 is located above the positioning hole 25 and has an installation groove 26 at its center. A support block 22 is provided on the top surface of the positioning block 21, surrounding the installation groove 26. The pad block 23 and the fixing screws 24 serve as the fixing mechanism. The structure includes a pad 23 on the bottom surface of the positioning block 21, which is located in the positioning hole 25. A fixing screw 24 is provided at the center of the pad 23. The pad 23, the mounting groove 26, and the positioning hole 25 are concentrically arranged. The oilless screw rotor 4 is fixed by the fixing screw 24, aligning the center of the oilless screw rotor 4 with the center of the positioning hole 25. The pressure plate mechanism 3 includes a T-slot nut 30, a double-ended stud 31, a shoulder nut 32, a pressure plate 33, and a height adjusting bolt 34. The pressure plate 33 is provided on the height adjusting bolt 34. The double-ended stud 31 is provided on the pressure plate 33, and its two ends are connected to the T-slot nut 30 and the shoulder nut 32, respectively. The height of the pressure plate 33 is adjusted by the height adjusting bolt 34. The T-slot nut 30 cooperates with the structure of the longitudinal groove 11. The pressure plate 33 is set at the corner facing the bottom plate 20 and contacts the top surface of the bottom plate 20. The pressure plate 33 fixes the bottom plate 20 to the worktable 1.

[0017] In use, the front end of the oilless screw rotor 4 is placed in the mounting groove 26, the support block 22 supports the sealing rib 5, and the fixing mechanism fixes the oilless screw rotor 4. The center of the oilless screw rotor 4 is aligned with the center of the positioning hole 25, and the edge finder 6 detects the size of the sealing rib 5. By adjusting the position of the tooling body 2 on the worktable 1, the sealing rib 5 of different models of oilless screw rotor 4 is kept at a suitable distance from the edge finder 6, which facilitates the edge finder 6 in detecting the size of the sealing rib 5. There is no need to prepare corresponding fixing fixtures for different models of oilless screw rotor 4, greatly reducing production costs.

[0018] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A fixture for inspecting and fixing the sealing ribs of an oilless screw rotor, characterized in that: The device includes a workbench, a fixture, and a pressure plate mechanism. The fixture and the pressure plate mechanism are movably mounted on the workbench. The pressure plate mechanism is circumferentially arranged around the fixture and fixes the fixture to the workbench. The fixture includes a base plate, a positioning block, a support block, and a fixing mechanism. The base plate is movably mounted on the workbench. A positioning hole is provided at the center of the base plate. A positioning block is provided on the base plate, located above the positioning hole. A mounting groove is provided at the center of the positioning block. A support block is provided on the top surface of the positioning block, circumferentially arranged around the mounting groove. The fixing mechanism is located on the bottom surface of the positioning block, within the positioning hole. The fixing mechanism, the mounting groove, and the positioning hole are concentrically arranged.

2. The inspection and fixing fixture for the sealing ribs of the oilless screw rotor according to claim 1, characterized in that: The fixing mechanism includes a pad and a fixing screw. The pad is set on the bottom surface of the positioning block and is concentric with the mounting groove. A fixing screw is set at the center of the pad and the oilless screw rotor is fixed by the fixing screw.

3. The inspection and fixing fixture for the sealing ribs of the oilless screw rotor according to claim 1, characterized in that: The workbench is equipped with horizontal and vertical grooves. The intersection of the horizontal and vertical grooves serves as the positioning point of the base plate center. The pressure plate mechanism is located in the vertical grooves at the four corners of the base plate.

4. The inspection and fixing fixture for the sealing ribs of the oilless screw rotor according to claim 3, characterized in that: The pressure plate mechanism includes a T-slot nut, a double-ended stud, a shoulder nut, a pressure plate, and a height adjusting bolt. The height adjusting bolt is equipped with a pressure plate, and the double-ended stud is mounted on the pressure plate. The two ends of the double-ended stud are connected to the T-slot nut and the shoulder nut, respectively. The height of the pressure plate is adjusted by the height adjusting bolt. The T-slot nut cooperates with the longitudinal groove structure. The pressure plate is positioned at the corner facing the base plate and contacts the top surface of the base plate. The pressure plate fixes the base plate to the worktable.

Images