Multi-specification differential cover CMM detection tool

Abstract

The utility model relates to the technical field of detection tools, and discloses a multi-specification differential cover CMM detection tool, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a supporting plate, an outer column and two supporting blocks, one side of the upper end of the supporting plate is provided with a placing port, and the outer column and the two supporting blocks are all located on one side, close to the placing port, of the supporting plate. A lifting cavity is formed in the outer column, the inner wall of the lifting cavity is connected with a lifting assembly, the upper end of the lifting assembly penetrates through the lifting cavity to the outside of the outer column, and the end, located outside the outer column, of the lifting assembly is further connected with an extrusion assembly. According to the multi-specification differential cover CMM detection tool, when differential cover CMM detection needs to be carried out on the outer circle of a flange, the outer circle of the flange to be detected only needs to be placed in the placement cavity, and then the outer circle of the flange can be limited from multiple angles through the lifting assembly, the extrusion assembly, the first rotating assembly, the second rotating assembly and the limiting insertion rod; and meanwhile, flange outer circles of different sizes can be fixed, the application range is wide, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of detection tooling, in particular to a CMM detection tooling for differential covers with various specifications. Background Art

[0002] A flange is a disc-shaped part used to connect pipes, valves, pumps and other mechanical equipment. It is usually made of metal. The outer circle of the flange refers to the outer circular edge of the flange.

[0003] During the production process, flange outer diameters are often inspected using a CMM (coordinate measuring machine) to detect manufacturing defects, such as unevenness, dimensional deviation, surface scratches, or cracks. A CMM is a high-precision measuring device that accurately measures the geometry and dimensions of an object, ensuring product quality meets design requirements. For critical connectors like flanges, the dimensional accuracy and surface quality of the outer diameter are crucial to the stability and sealing of the connection.

[0004] Because flanges vary in size, currently when inspecting flange outer circles, the same inspection tool cannot be adjusted for inspection according to flange outer circles of different sizes. As a result, flanges of different sizes can only be inspected with different inspection tools, which is monotonous in usability and low in practicality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a CMM detection tool for differential covers of various specifications, which can detect the outer circles of flanges of various specifications and sizes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CMM detection tooling for differential covers of various specifications, comprising a base plate, a support plate, an outer column and two support blocks fixedly connected to the upper surface of the base plate, a placement opening being provided on one side of the upper end of the support plate, the outer column and the two support blocks being located on the side of the support plate close to the placement opening, a lifting cavity being provided inside the outer column, a lifting assembly being connected to the inner wall of the lifting cavity, the upper end of the lifting assembly passing through the lifting cavity to the outside of the outer column, and an extrusion assembly being connected to the end of the lifting assembly located outside the outer column, the end of the extrusion assembly close to the support plate being matched and aligned with the placement opening, a No. 1 rotating assembly being connected between the two support blocks, a No. 2 rotating assembly being connected to the other end of the No. 1 rotating assembly, a limiting plug being connected to the other end of the No. 2 rotating assembly, a conical cross-section of the limiting plug, and a thinner end of the limiting plug facing the placement opening.

[0007] Furthermore, the lifting assembly includes a No. 1 knob, a fixed block and a lifting screw. The lower end of the lifting screw is located in the lifting cavity. The upper end of the lifting screw passes through the lifting cavity and the No. 1 knob and is fixedly connected to the bottom surface of the fixed block. The inner wall of the fixed block is connected to the extrusion assembly. The inner wall of the No. 1 knob is threadedly connected to the outer wall of the lifting screw. The bottom surface of the No. 1 knob is abutted against the upper surface of the outer column. The outer wall of the lifting screw is slidably connected to the inner wall of the lifting cavity.

[0008] Furthermore, a plurality of sliders are fixedly connected to the lower end of the lifting screw rod, a plurality of sliding grooves are provided on the inner wall of the lifting cavity, and the outer walls of the plurality of sliders are respectively slidably connected to the inner walls of the plurality of sliding grooves.

[0009] Furthermore, an anti-slip ring is fixedly connected to the bottom surface of the No. 1 knob, an anti-slip cavity is opened on the upper surface of the outer column, and the outer wall of the anti-slip ring is slidably connected to the inner wall of the anti-slip cavity.

[0010] Furthermore, the extrusion assembly includes front and rear screw rods and a moving block. The front and rear screw rods pass through and are threadedly connected to the inner wall of the fixed block. One end of the front and rear screw rods is fixedly connected to the side wall of the moving block, and the other side of the moving block is aligned with the placement port.

[0011] Furthermore, the No. 1 rotating assembly includes a No. 1 rotating rod, a No. 2 knob and a No. 1 plate. The outer wall of one end of the No. 1 rotating rod is rotatably connected to the inner wall of the upper end of one of the support blocks. The other end of the No. 1 rotating rod passes through the lower end of the No. 1 plate, the other support block and the No. 2 knob. The outer wall of the No. 1 rotating rod is fixedly connected to the penetration point of the No. 1 plate. The outer wall of the No. 1 rotating rod is slidingly connected to the inner wall of the second support block. The outer wall of the No. 1 rotating rod is threadedly connected to the inner wall of the No. 2 knob. The side of the No. 2 knob close to the No. 1 plate is against the side wall of the second support block. The upper end of the No. 1 plate is connected to the No. 2 rotating assembly.

[0012] Furthermore, the No. 2 rotating assembly includes a No. 2 rotating rod, a No. 3 knob and a No. 2 plate. One end of the No. 2 rotating rod is fixedly connected to the inner wall of the lower end of the No. 2 plate, and the other end of the No. 2 rotating rod passes through the upper end of the No. 1 plate and the No. 3 knob. The outer wall of the No. 2 rotating rod is slidably connected to the penetration of the No. 1 plate, and the outer wall of the No. 2 rotating rod is threadedly connected to the penetration of the No. 3 knob. The side of the No. 3 knob close to the No. 2 plate is against the side wall of the No. 1 plate, and the upper end of the No. 2 plate is fixedly connected to the thicker end of the limit plug.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This type of CMM inspection tooling for differential covers of various specifications is equipped with a support plate, an outer column and a support block on the base plate, and a placement cavity is opened on the support plate, a lifting component and an extrusion component are arranged on the outer column, and a No. 1 rotation component, a No. 2 rotation component and a limit plug rod are connected to the support block. When the outer circle of the flange needs to be inspected for differential cover CMM, it is only necessary to place the outer circle of the flange to be inspected in the placement cavity, and then the outer circle of the flange can be limited from multiple angles through the lifting component, extrusion component, No. 1 rotation component, No. 2 rotation component and limit plug rod. At the same time, the outer circles of flanges of different sizes can also be fixed. It has a wide range of applications and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the outer column, lifting assembly and extrusion assembly of the utility model;

[0017] Figure 3 This is an exploded schematic diagram of the structural support block, the No. 1 rotating assembly and the No. 2 rotating assembly of the utility model.

[0018] In the figure: 1. Base plate; 2. Support plate; 3. Outer column; 4. Knob No. 1; 5. Fixed block; 6. Front and rear screw rods; 7. Moving block; 8. Support block; 9. Turn rod No. 1; 10. Knob No. 2; 11. Plate No. 1; 12. Turn rod No. 2; 13. Knob No. 3; 14. Plate No. 2; 15. Limit plug; 16. Lifting screw rod; 17. Slider; 18. Anti-slip ring; 201. Placement port; 301. Lifting cavity; 302. Slide groove; 303. Anti-slip cavity. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-3, a CMM detection tooling for differential covers of multiple specifications, including a base plate 1, the upper surface of the base plate 1 is fixedly connected to a support plate 2, an outer column 3 and two support blocks 8, a placement opening 201 is opened on one side of the upper end of the support plate 2, the outer column 3 and the two support blocks 8 are both located on the side of the support plate 2 close to the placement opening 201, a lifting cavity 301 is opened inside the outer column 3, the inner wall of the lifting cavity 301 is connected with a lifting assembly, the upper end of the lifting assembly passes through the lifting cavity 301 to the outside of the outer column 3, and the end of the lifting assembly located outside the outer column 3 is also connected to an extrusion assembly, the end of the extrusion assembly close to the support plate 2 is matched and aligned with the placement opening 201, a No. 1 rotating assembly is connected between the two support blocks 8, the other end of the No. 1 rotating assembly is connected to the No. 2 rotating assembly, and the other end of the No. 2 rotating assembly is connected to a limit plug 15, the cross section of the limit plug 15 is conical, and the thinner end of the limit plug 15 faces the placement opening 201.

[0021] like Figures 1 to 3 As shown, when the CMM detection fixture for various specifications of differential covers in the present invention detects the outer circle of the flange, the outer circle of the flange to be detected is first placed on the placement port 201. Because the placement port 201 is V-shaped, the edge of the outer circle of the flange can be against the inner walls on both sides of the placement port 201. Then, according to the size of the outer circle of the flange, the lifting component is rotated to increase or decrease the height of the extrusion component. Then, the extrusion component is moved forward so that it is pressed against the placement port 201 from the side of the outer circle of the flange away from the placement port 201. Then, the position of the limit plug 15 is changed through the No. 1 rotating component and the No. 2 rotating component, so that the front end of the limit plug 15 is inserted into the hole of the outer circle of the flange. Because the limit plug 15 is sharper the closer to the placement port 201, it can also adapt to the outer circles of flanges with more different aperture sizes.

[0022] like Figures 1 to 3 As shown, the lifting assembly includes a No. 1 knob 4, a fixed block 5, and a lifting screw 16. The lower end of the lifting screw 16 is located in the lifting cavity 301. The upper end of the lifting screw 16 passes through the lifting cavity 301 and the No. 1 knob 4 and is fixedly connected to the bottom surface of the fixed block 5. The inner wall of the fixed block 5 is connected to the extrusion assembly. The inner wall of the No. 1 knob 4 is threadedly connected to the outer wall of the lifting screw 16. The bottom surface of the No. 1 knob 4 is against the upper surface of the outer column 3. The outer wall of the lifting screw 16 is slidably connected to the inner wall of the lifting cavity 301. The lower end of the lifting screw 16 is fixedly connected to a number of sliders 17. The inner wall of the lifting cavity 301 is provided with a number of slide grooves 302. The outer walls of the several sliders 17 are slidably connected to the inner walls of the several slide grooves 302 respectively. The bottom surface of the No. 1 knob 4 is fixedly connected to an anti-slip ring 18. The upper surface of the outer column 3 is provided with an anti-slip cavity 303. The outer wall of the anti-slip ring 18 is slidably connected to the inner wall of the anti-slip cavity 303.

[0023] More specifically, when the height of the extrusion assembly needs to be changed, it is only necessary to turn knob No. 4. After knob No. 4 is turned, due to the action of the anti-slip ring 18 and the anti-slip cavity 303, knob No. 4 will only rotate and will not fall off the outer column 3. As knob No. 4 is turned, the lifting screw 16 can be pushed upward through the internal thread (because the lifting screw 16 is restricted by the slider 17 and the slide groove 302, the lifting screw 16 itself cannot rotate, so it can only move up and down). While the lifting screw 16 rises, it can push the fixed block 5 upward, thereby pushing the extrusion assembly located in the fixed block 5 upward together, and then the position of the extrusion assembly extruded on the outer circular surface of the flange can be changed.

[0024] like Figures 1 to 3 As shown, the extrusion assembly includes front and rear screw rods 6 and a moving block 7. The front and rear screw rods 6 pass through and are threadedly connected to the inner wall of the fixed block 5. One end of the front and rear screw rods 6 is fixedly connected to the side wall of the moving block 7, and the other side of the moving block 7 is aligned with the placement port 201.

[0025] More specifically, when the fixed block 5 moves up, the front and rear screw rods 6 and the movable block 7 connected thereto will move up together. When the movable block 7 moves up to a suitable height, the front and rear screw rods 6 are rotated to move the movable block 7 laterally toward the outer circle of the flange until the movable block 7 rests on the outer circle of the flange and cannot rotate and then stops. At this time, the outer circle of the flange is tightly squeezed into the placement port 201.

[0026] like Figures 1 to 3 As shown, the No. 1 rotating assembly includes a No. 1 rotating rod 9, a No. 2 knob 10 and a No. 1 plate 11. The outer wall of one end of the No. 1 rotating rod 9 is rotatably connected to the inner wall of the upper end of one of the support blocks 8. The other end of the No. 1 rotating rod 9 passes through the lower end of the No. 1 plate 11, the other support block 8 and the No. 2 knob 10. The outer wall of the No. 1 rotating rod 9 is fixedly connected to the penetration point of the No. 1 plate 11. The outer wall of the No. 1 rotating rod 9 is slidably connected to the inner wall of the second support block 8. The outer wall of the No. 1 rotating rod 9 is threadedly connected to the inner wall of the No. 2 knob 10. The side of the No. 2 knob 10 close to the No. 1 plate 11 is against the side wall of the second support block 8, and the upper end of the No. 1 plate 11 is connected to the No. 2 rotating assembly.

[0027] More specifically, when the position of the limit plug 15 needs to be changed, it is only necessary to first loosen the squeeze between the No. 2 knob 10 and the second support block 8. At this time, the No. 1 plate 11 can rotate with the No. 1 rotating rod 9 as the axis, thereby changing the position of the No. 2 rotating assembly at the other end of the No. 1 plate 11. When the position is appropriate, it is only necessary to turn the No. 2 knob 10 again to squeeze the second support block 8 and the No. 1 plate 11 tightly.

[0028] like Figures 1 to 3As shown, the No. 2 rotating assembly includes a No. 2 rotating rod 12, a No. 3 knob 13 and a No. 2 plate 14. One end of the No. 2 rotating rod 12 is fixedly connected to the inner wall of the lower end of the No. 2 plate 14, and the other end of the No. 2 rotating rod 12 passes through the upper end of the No. 1 plate 11 and the No. 3 knob 13. The outer wall of the No. 2 rotating rod 12 is slidably connected to the penetration of the No. 1 plate 11, and the outer wall of the No. 2 rotating rod 12 is threadedly connected to the penetration of the No. 3 knob 13. The side of the No. 3 knob 13 close to the No. 2 plate 14 is against the side wall of the No. 1 plate 11, and the upper end of the No. 2 plate 14 is fixedly connected to the thicker end of the limit plug 15.

[0029] More specifically, when the position of the limit plug 15 needs to be changed, it is only necessary to first loosen the extrusion limit between the No. 3 knob 13 and the No. 1 plate 11, and then the No. 2 plate 14 can rotate with the No. 2 rotating rod 12 as the axis, and then cooperate with the angle change of the No. 1 rotating component to make the limit plug 15 move within a certain range to adapt to the position of the outer circular hole of different flanges.

[0030] It should be noted here that the rotation order of the No. 1 rotating assembly and the No. 2 rotating assembly is not limited and is subject to actual operation.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CMM inspection tool for differential covers of various specifications, characterized by: The invention comprises a bottom plate (1), wherein the upper surface of the bottom plate (1) is fixedly connected with a support plate (2), an outer column (3) and two support blocks (8), a placement opening (201) is provided on one side of the upper end of the support plate (2), the outer column (3) and the two support blocks (8) are both located on the side of the support plate (2) close to the placement opening (201), a lifting cavity (301) is provided inside the outer column (3), a lifting assembly is connected to the inner wall of the lifting cavity (301), and the upper end of the lifting assembly passes through the lifting cavity (301) to the outer column (3), and the end of the lifting assembly located outside the outer column (3) is also connected to an extrusion assembly, and the end of the extrusion assembly close to the support plate (2) is aligned with the placement opening (201), and a No. 1 rotation assembly is connected between the two support blocks (8), and the other end of the No. 1 rotation assembly is connected to the No. 2 rotation assembly, and the other end of the No. 2 rotation assembly is connected to a limit plug (15), and the cross section of the limit plug (15) is conical, and the thinner end of the limit plug (15) faces the placement opening (201).

2. The CMM inspection tool for differential covers of various specifications according to claim 1, characterized in that: The lifting assembly comprises a No. 1 knob (4), a fixed block (5) and a lifting screw (16), the lower end of the lifting screw (16) is located in the lifting cavity (301), the upper end of the lifting screw (16) passes through the lifting cavity (301) and the No. 1 knob (4), and is fixedly connected to the bottom surface of the fixed block (5), the inner wall of the fixed block (5) is connected to the extrusion assembly, the inner wall of the No. 1 knob (4) is threadedly connected to the outer wall of the lifting screw (16), the bottom surface of the No. 1 knob (4) is against the upper surface of the outer column (3), and the outer wall of the lifting screw (16) is slidably connected to the inner wall of the lifting cavity (301).

3. The CMM inspection tool for differential covers of various specifications according to claim 2, characterized in that: The lower end of the lifting screw rod (16) is fixedly connected to a plurality of sliders (17), the inner wall of the lifting cavity (301) is provided with a plurality of slide grooves (302), and the outer walls of the plurality of sliders (17) are respectively slidably connected to the inner walls of the plurality of slide grooves (302).

4. The CMM inspection tool for differential covers of various specifications according to claim 2 or 3, characterized in that: The bottom surface of the No. 1 knob (4) is fixedly connected to an anti-slip ring (18), the upper surface of the outer column (3) is provided with an anti-slip cavity (303), and the outer wall of the anti-slip ring (18) is slidably connected to the inner wall of the anti-slip cavity (303).

5. The CMM inspection tool for differential covers of various specifications according to claim 2 or 3, characterized in that: The extrusion assembly includes front and rear screw rods (6) and a moving block (7). The front and rear screw rods (6) pass through and are threadedly connected to the inner wall of the fixed block (5). One end of the front and rear screw rods (6) is fixedly connected to the side wall of the moving block (7), and the other side of the moving block (7) is aligned with the placement opening (201).

6. A CMM inspection tool for differential covers of various specifications according to claim 1, 2 or 3, characterized in that: The No. 1 rotating assembly comprises a No. 1 rotating rod (9), a No. 2 rotating knob (10) and a No. 1 plate (11). The outer wall of one end of the No. 1 rotating rod (9) is rotatably connected to the inner wall of the upper end of one of the support blocks (8). The other end of the No. 1 rotating rod (9) passes through the lower end of the No. 1 plate (11), the other support block (8) and the No. 2 rotating knob (10). The outer wall of the No. 1 rotating rod (9) is fixedly connected to the penetration of the No. 1 plate (11). The outer wall of the No. 1 rotating rod (9) is slidably connected to the inner wall of the second support block (8). The outer wall of the No. 1 rotating rod (9) is threadedly connected to the inner wall of the No. 2 rotating knob (10). The side of the No. 2 rotating knob (10) close to the No. 1 plate (11) is against the side wall of the second support block (8). The upper end of the No. 1 plate (11) is connected to the No. 2 rotating assembly.

7. The CMM inspection tool for differential covers of various specifications according to claim 6, characterized in that: The second rotating assembly comprises a second rotating rod (12), a third knob (13) and a second plate (14), one end of the second rotating rod (12) is fixedly connected to the inner wall of the lower end of the second plate (14), the other end of the second rotating rod (12) passes through the upper end of the first plate (11) and the third knob (13), the outer wall of the second rotating rod (12) is slidably connected to the penetration of the first plate (11), the outer wall of the second rotating rod (12) is threadedly connected to the penetration of the third knob (13), the side of the third knob (13) close to the second plate (14) is against the side wall of the first plate (11), and the upper end of the second plate (14) is fixedly connected to the thicker end of the limit plug (15).

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