A bearing inner ring measuring device

Abstract

A bearing inner ring measuring device includes a mounting base, a first movable seat mounted on the base, a second movable seat mounted on the first movable seat, and a cylinder seat mounted on the second movable seat. A piston is disposed in the center of the cylinder seat, and a measuring rod and a limiting rod are respectively disposed on both sides of the cylinder seat. A linkage plate is disposed at the rear of the cylinder seat. One end of the piston extends out of the cylinder seat and is connected to a transmission rod, which is connected to the linkage plate. A measuring head is mounted at the front end of the measuring rod, and a probe is mounted at the front end of the measuring head. The rear end of the measuring rod is connected to the linkage plate via a connecting plate. The front end of the limiting rod extends out of the cylinder seat and is connected to a limiting screw, and the rear end of the limiting rod is connected to the linkage plate. Compared with the prior art, this bearing inner ring measuring device, installed on a bearing grinding machine, measures the bore diameter after the bearing inner ring mounting hole is ground, achieving high measurement accuracy and significantly improved measurement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a bearing inner ring measuring device. Background Technology

[0002] To ensure the required dimensions, the mounting hole in the center of the bearing inner ring generally needs to be ground and then measured using measuring tools. Traditional manual measurement is not only inefficient but also prone to errors. For miniature bearings, the bearing parts are small, making it difficult to measure them manually. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bearing inner ring measuring device to address the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A bearing inner ring measuring device includes a mounting base, a first movable seat mounted on the bottom of the mounting base, a second movable seat mounted on the first movable seat, a cylinder seat mounted on the second movable seat, a piston disposed in the middle of the cylinder seat, a measuring rod and a limiting rod disposed on both sides of the cylinder seat, a linkage plate disposed at the rear of the cylinder seat, one end of the piston extending out of the cylinder seat and connected to a transmission rod, the transmission rod being connected to the linkage plate, a measuring head disposed at the front end of the measuring rod, a probe disposed at the front end of the measuring head, the rear end of the measuring rod being connected to the linkage plate via a connecting plate, a limiting screw being disposed at the front end of the limiting rod extending out of the cylinder seat, and the rear end of the limiting rod being connected to the linkage plate.

[0006] Furthermore, the mounting base has a positioning groove machined at its bottom and mounting bevels machined on both sides of its bottom. A guide strip is provided on the surface of the mounting base. A first guide groove that mates with the guide strip is machined at the bottom of the first movable seat. First oblong holes are machined on both sides of the first movable seat, and the first oblong holes are connected to the mounting base via first mounting screws. A first adjusting seat is mounted on the side of the mounting base, and a first adjusting screw is provided on the first adjusting seat, connecting to the first movable seat. A first mounting side plate is machined on the side of the first movable seat, and a second mounting side plate is machined on the side of the second movable seat. Second oblong grooves are machined on both sides of the second mounting side plate. The second mounting side plate is connected to the second mounting side plate via a second mounting screw at the two-waisted groove. The surface of the first mounting side plate is machined with a second guide groove. The back of the second mounting side plate is provided with a first protrusion, which is embedded in the second guide groove. A second adjusting seat is installed above the first mounting side plate. A second adjusting screw is provided on the second adjusting seat and is connected to the upper end of the second mounting side plate. A third guide groove is machined on the surface of the second movable seat. A second protrusion is provided at the bottom of the cylinder seat and is embedded in the third guide groove. A third adjusting seat is installed on the side of the second movable seat. A third adjusting screw is provided on the third adjusting seat and is connected to the cylinder seat.

[0007] Furthermore, limit flanges are machined on the threaded shafts of the first, second, and third adjusting screws.

[0008] Furthermore, the cylinder seat has oil inlet and outlet holes machined on both sides of the piston.

[0009] Furthermore, the connecting plate is machined with a cylindrical boss, which fits tightly onto the measuring rod. The connecting plate is also machined with connecting holes around its perimeter, which are then fixedly connected to the linkage plate by mounting screws.

[0010] Furthermore, a linear bearing is provided between the measuring rod and the cylinder seat, and a wire hole is machined in the middle of the measuring rod.

[0011] Furthermore, tension springs are provided between the upper and lower sides of the cylinder seat and the linkage plate.

[0012] Compared with the prior art, the bearing inner ring measuring device of this utility model is installed on a bearing grinding machine. After the mounting hole of the bearing inner ring is ground, the hole diameter is measured by the measuring device, which has high measurement accuracy and significantly improved measurement efficiency. Attached Figure Description

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

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a schematic diagram of the installation structure of the mounting base and guide strip of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the first movable seat of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the second movable seat of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the hydraulic cylinder seat of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the piston and cylinder seat of this utility model;

[0020] Figure 8 This is a schematic diagram of the structure of the measuring rod and the cylinder seat of this utility model;

[0021] Figure 9 This is a schematic diagram of the structure of the adjusting screw of this utility model;

[0022] Figure 10 This is a schematic diagram of the structure of the connecting plate of this utility model;

[0023] The components include: 1. Mounting base; 2. First movable seat; 3. Second movable seat; 4. Cylinder seat; 5. Positioning groove; 6. Mounting inclined surface; 7. Guide strip; 8. First guide groove; 9. First oblong hole; 10. First adjusting seat; 11. First adjusting screw; 12. First mounting side plate; 13. Second mounting side plate; 14. Second oblong groove; 15. Second guide groove; 16. First protrusion; 17. Second adjusting seat; 18. Second adjusting screw; 19. Third guide groove; 20. Second protrusion. 1. Third adjusting seat; 22. Third adjusting screw; 23. Limiting flange; 24. Piston; 25. Oil inlet / outlet hole; 26. Plug block; 27. Measuring rod; 28. Limiting rod; 29. ​​Linkage plate; 30. Transmission rod; 31. Measuring head; 32. Probe; 33. Threaded wire; 34. Linear bearing; 35. Connecting plate; 36. Cylindrical boss; 37. Connecting hole; 38. Limiting screw; 39. Tension spring; 40. Tension spring connecting column; 41. Clearance hole; 42. Clearance groove; 43. Tension spring hanging column. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0025] like Figures 1-10As shown, a bearing inner ring measuring device includes a mounting base 1, a first movable seat 2 mounted on the mounting base 1, a second movable seat 3 mounted on the first movable seat 2, and a cylinder seat 4 mounted on the second movable seat 3. The mounting base 1 has a positioning groove 5 machined at its bottom, which positions with a positioning boss on a bearing grinding machine. Mounting inclined surfaces 6 are machined on both sides of the bottom of the mounting base 1, and the mounting base 1 is fixed by pressing the mounting inclined surfaces with a pressure block mounted on the bearing grinding machine. A guide strip 7 is provided on the surface of the mounting base 1. A first guide groove 8 that mates with the guide strip 7 is machined on the bottom of the first movable seat 2. First oblong holes 9 are machined on both sides of the first movable seat 2, and the first oblong holes 9 are connected to the mounting base 1 by first mounting screws. A first adjusting seat 10 is mounted on the side of the mounting base 1, and a first adjusting screw 11 is provided on the first adjusting seat 10, which is connected to the first movable seat 2. The first movable seat 2 has a... The system includes a first mounting side plate 12, a second movable seat 3 with a second mounting side plate 13, and second waist-shaped grooves 14 on both sides of the second mounting side plate 13. The second waist-shaped grooves 14 are connected to the first mounting side plate 12 by second mounting screws. The surface of the first mounting side plate 12 is machined with a second guide groove 15. The back of the second mounting side plate 13 is provided with a first protrusion 16, which is embedded in the second guide groove 15. A second adjusting seat 17 is installed above the first mounting side plate 12, and a second adjusting screw 18 is provided on the second adjusting seat 17. The second adjusting screw 18 is connected to the upper end of the second mounting side plate 13. The surface of the second movable seat 2 is machined with a third guide groove 19. The bottom of the cylinder seat 4 is provided with a second protrusion 20, which is embedded in the third guide groove 19. A third adjusting seat 21 is installed on the side of the second movable seat 2, and a third adjusting screw 22 is provided on the third adjusting seat 21. The third adjusting screw 22 is connected to the cylinder seat 4.

[0026] In this embodiment, the first guide groove 8 and the third guide groove 19 are horizontal adjustment grooves, and the left and right positions of the cylinder seat 4 are adjusted by the first adjusting screw and the third adjusting screw 22. The second guide groove 15 is a vertical adjustment groove, and the up and down positions of the cylinder seat 4 are adjusted by the second adjusting screw 18. The threaded rods of the first adjusting screw 11, the second adjusting screw 18 and the third adjusting screw 22 are machined with limiting flanges 23, and the limiting flanges 23 and the screw heads of the adjusting screws are locked on the adjusting seat.

[0027] The cylinder seat 4 has a piston hole machined in the middle, and a piston 24 is installed in the piston hole. Oil inlet and outlet holes 25 are machined on both sides of the piston 24 on the cylinder seat 4. In this embodiment, in order to facilitate the installation of the piston 24, a plug block 26 is provided at the piston hole of the cylinder seat 4 to block the piston 24. The plug block 26 has an oil inlet and outlet hole 25 machined on it. Another oil inlet and outlet hole 25 is machined on the cylinder seat 4. After hydraulic oil is introduced into the oil inlet and outlet hole 25, the piston 24 is controlled to move.

[0028] Measuring rods 27 and limiting rods 28 are respectively provided on both sides of the cylinder seat 4. A linkage plate 29 is provided at the tail of the cylinder seat 4. One end of the piston 24 extends out of the cylinder seat 4 and is connected to a transmission rod 30. The transmission rod 30 is screwed and fixed on the linkage plate 29. A measuring head 31 is installed at the front end of the measuring rod 27. The measuring head 31 is screwed onto the front end of the measuring rod 27. In this embodiment, the measuring head 31 is a grinding measuring instrument from Marposs. A measuring head 32 is installed at the front end of the measuring head 31. The measuring head 32 measures the inner hole of the bearing inner ring. A wire hole 33 is machined in the middle of the measuring rod 27. The data cable at the tail of the measuring head 31 passes through the wire hole. A linear bearing 34 is provided between the measuring rod 27 and the cylinder seat 4 to reduce the friction when the measuring rod 27 moves back and forth. The tail of the measuring rod 27 is connected to the linkage plate 29 through the connecting plate 35. In this embodiment, a cylindrical boss 36 is machined on the connecting plate 35. The cylindrical boss 36 is fitted onto the measuring rod 27 and fits tightly with the measuring rod 27. A connecting hole 37 is machined around the periphery of the connecting plate 35. The connecting hole 37 is fixedly connected to the linkage plate 29 by mounting screws. The front end of the limiting rod 28 extends out of the cylinder seat 4 and is connected to the limiting screw 38. The tail of the limiting rod 38 is connected to the linkage plate 29.

[0029] When the measuring device is working, the piston 24 in the cylinder seat 4 drives the linkage plate 29 through the transmission rod 30. The linkage plate 29 drives the probe 32 at the front end of the measuring rod 27 to measure the inner ring diameter of the bearing. In order to ensure the stability of the linkage plate during the measurement process, tension springs 39 are provided between the upper and lower sides of the cylinder seat 4 and the linkage plate 29. Tension spring connecting columns 40 are connected to the upper and lower sides of the cylinder seat 4. The tension spring connecting column 40 below the cylinder seat 4 passes through the second movable seat 3. The second movable seat 3 is machined with a clearance hole 41 and a clearance groove 42. The clearance hole 41 avoids the tension spring connecting column 40, and the clearance groove 42 avoids the tension spring 39. A tension spring hanging column 43 is installed on the linkage plate 29. The two ends of the tension spring 39 are hooked to the tension spring connecting column 40 and the tension spring hanging column 43, respectively.

[0030] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. A bearing inner race measuring device characterized by: The device includes a mounting base, a first movable seat mounted on the base of the mounting base, a second movable seat mounted on the first movable seat, and a cylinder seat mounted on the second movable seat. A piston is located in the middle of the cylinder seat, and a measuring rod and a limiting rod are respectively located on both sides of the cylinder seat. A linkage plate is located at the rear of the cylinder seat. One end of the piston extends out of the cylinder seat and is connected to a transmission rod, which is connected to the linkage plate. A measuring head is mounted at the front end of the measuring rod, and a probe is mounted at the front end of the measuring head. The rear end of the measuring rod is connected to the linkage plate through a connecting plate. The front end of the limiting rod extends out of the cylinder seat and is connected to a limiting screw, and the rear end of the limiting rod is connected to the linkage plate.

2. A bearing inner race measuring apparatus as set forth in claim 1, characterized by: The mounting base has a positioning groove machined at its bottom and mounting bevels machined on both sides of its bottom. A guide strip is provided on the surface of the mounting base. A first guide groove that mates with the guide strip is machined at the bottom of the first movable seat. First oblong holes are machined on both sides of the first movable seat, and the first oblong holes are connected to the mounting base via first mounting screws. A first adjusting seat is mounted on the side of the mounting base, and a first adjusting screw is provided on the first adjusting seat, connecting to the first movable seat. A first mounting side plate is machined on the side of the first movable seat, and a second mounting side plate is machined on the side of the second movable seat. Second oblong grooves are machined on both sides of the second mounting side plate. The groove is connected to the first mounting side plate by a second mounting screw. The surface of the first mounting side plate is machined with a second guide groove. The back of the second mounting side plate is provided with a first protrusion, which is embedded in the second guide groove. A second adjusting seat is installed above the first mounting side plate. A second adjusting screw is provided on the second adjusting seat and is connected to the upper end of the second mounting side plate. A third guide groove is machined on the surface of the second movable seat. A second protrusion is provided at the bottom of the cylinder seat and is embedded in the third guide groove. A third adjusting seat is installed on the side of the second movable seat. A third adjusting screw is provided on the third adjusting seat and is connected to the cylinder seat.

3. A bearing inner race measuring apparatus as set forth in claim 2 wherein: Limiting flanges are machined on the threaded shafts of the first, second, and third adjusting screws.

4. The bearing inner race measuring apparatus of claim 1, wherein: The cylinder seat has oil inlet and outlet holes machined on both sides of the piston.

5. The bearing inner race measuring apparatus of claim 1, wherein: The connecting plate is machined with a cylindrical boss, which fits tightly onto the measuring rod. The connecting plate is also machined with connecting holes around its perimeter, which are fixedly connected to the linkage plate by mounting screws.

6. A bearing inner race measuring apparatus as set forth in claim 1, characterized by: A linear bearing is provided between the measuring rod and the cylinder seat, and a wire hole is machined in the middle of the measuring rod.

7. The bearing inner race measuring apparatus of claim 1, wherein: Tension springs are provided between the upper and lower sides of the cylinder seat and the linkage plate.

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