A new type of bearing outer diameter measuring instrument

Abstract

This utility model relates to the field of measuring device technology and discloses a novel bearing outer diameter measuring instrument, including a base, a measuring platform on the top of the base, a lower groove inside the base, a lower support on the top of the measuring platform, a lower positioning rod inside the lower support, a lower slider fixedly connected to the bottom of the lower positioning rod, an inclined groove inside the base, a fixed plate on the top of the measuring platform, a rotating groove inside the fixed plate, a turntable on the top of the fixed plate, and a locking bolt inside the turntable. In this utility model, the angle of the inclined support point can be flexibly adjusted through the cooperation of the fixed plate, turntable, locking block, locking bolt, and rotating groove to adapt to bearing outer rings with different curvatures. Tightening the locking bolt causes the locking block to engage with the rotating groove at a fixed angle, ensuring stable positioning. Compared with traditional bearing outer diameter measuring instruments, this improves measurement adaptability and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, and in particular to a novel bearing outer diameter measuring instrument. Background Technology

[0002] The bearing outer diameter measuring instrument is mainly used to accurately measure the outer diameter of the bearing outer ring. It can quickly detect geometric errors such as dimensional deviation and ovality, ensuring that the bearing outer diameter meets the standard specifications and guaranteeing the compatibility between the bearing and the mounting components. It is widely used in bearing production quality inspection, equipment maintenance and testing and other scenarios to improve product quality and assembly accuracy.

[0003] Traditional bearing outer diameter measuring instruments mainly consist of a measuring platform, a probe, a positioning mechanism, and a data display unit. In use, the bearing is placed in the positioning mechanism for centering, and the probe contacts the outer diameter. When the bearing rotates, the probe senses the change in the outer diameter dimension and converts it into an electrical signal or mechanical displacement. After processing, the value is displayed on the display unit to realize the measurement of errors such as outer diameter and roundness.

[0004] However, traditional bearing outer diameter measuring instruments often experience slight deviations when fixing the left support point after finding the maximum value by fixing the lower support point, which also causes the maximum value to shift, amplifying the measurement error. Furthermore, the support points of traditional equipment are mostly rigid connections, lacking fine adjustment mechanisms. In scenarios where high measurement accuracy is required, it is difficult to ensure precise fit between the support point and the bearing outer ring through fine adjustments.

[0005] Therefore, a novel bearing outer diameter measuring instrument is provided to solve the problems mentioned in the background art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a new type of bearing outer diameter measuring instrument, which aims to improve the problems of easy error when fixing the fulcrum and lack of fine adjustment mechanism in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A novel bearing outer diameter measuring instrument, comprising a base, a measuring platform at the top of the base, a lower groove inside the base, a lower support at the top of the measuring platform, a lower positioning rod inside the lower support, a lower slider fixedly connected to the bottom of the lower positioning rod, an oblique groove inside the base, a fixed plate at the top of the measuring platform, a rotating groove inside the fixed plate, a turntable at the top of the fixed plate, a locking bolt inside the turntable, a locking block fixedly connected to the end of the locking bolt away from the fixed plate, an oblique positioning rod inside the fixed plate, an oblique slider fixedly connected to the bottom of the oblique positioning rod, limit nuts threadedly connected to the outer sides of both the lower positioning rod and the oblique positioning rod, and a telescopic assembly inside the turntable.

[0008] Furthermore, the telescopic assembly includes a support rod disposed inside the turntable, a sleeve fixedly connected inside the turntable, a connecting piece fixedly connected outside the support rod, a rack fixedly connected outside the support rod, a rotating gear meshing outside the rack, a rotating rod fixedly connected inside the rotating gear, a fixing bolt fixedly connected to the top of the rotating rod, and a knob fixedly connected to the top of the fixing bolt.

[0009] Furthermore, the knob is rotatably connected to the top of the turntable, and the rotating gear and the rotating rod are rotatably connected inside the turntable.

[0010] Furthermore, the lower slider is slidably connected inside the lower dovetail groove, and the oblique slider is slidably connected inside the oblique dovetail groove.

[0011] Furthermore, the turntable is rotatably connected to the top of the fixed plate, and the locking block is slidably connected inside the rotating groove.

[0012] Furthermore, the lower positioning rod passes through the lower support and is fixedly connected to the top of the lower slider, and the inclined positioning rod passes through the fixed plate and is fixedly connected to the top of the inclined slider.

[0013] Furthermore, the turntable is provided with an inclined support point on its exterior, and the lower support is fixedly connected to the lower support point on its exterior.

[0014] Furthermore, an instrument rack is provided on the outside of the base, and an auxiliary support is provided on the outside of the base.

[0015] This utility model has the following beneficial effects: 1. In this utility model, the angle of the inclined support point can be flexibly adjusted by the cooperation of the fixed plate, the turntable, the locking block, the locking bolt and the rotating groove, which can be adapted to the outer ring of bearings with different curvatures. Tightening the locking bolt makes the locking block snap into the rotating groove at a fixed angle, ensuring stable positioning. Compared with the traditional bearing outer diameter measuring instrument, the measurement adaptability and accuracy are improved.

[0016] 2. In this utility model, the extension length of the inclined support point can be precisely adjusted through the design of the telescopic component, so as to achieve precise support for bearings of different specifications. Its gear and rack transmission is stable, avoiding the problems of large adjustment error and poor adaptability, and improving measurement accuracy and efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of a novel bearing outer diameter measuring instrument proposed in this utility model; Figure 2 This is a schematic diagram of the fixing structure of a novel bearing outer diameter measuring instrument proposed in this utility model; Figure 3 This is a schematic diagram of the sliding structure of a novel bearing outer diameter measuring instrument proposed in this utility model. Figure 4 This is a schematic diagram of the rotating structure of a novel bearing outer diameter measuring instrument proposed in this utility model. Figure 5 A schematic diagram of the telescopic assembly structure of a novel bearing outer diameter measuring instrument proposed in this utility model. Figure 6 This is a schematic diagram of the transmission component structure of a novel bearing outer diameter measuring instrument proposed in this utility model.

[0018] Legend: 1. Base; 2. Instrument frame; 3. Auxiliary support; 4. Measuring platform; 5. Lower dovetail groove; 6. Lower slider; 7. Lower positioning rod; 8. Lower support; 9. Lower fulcrum; 10. Inclined dovetail groove; 11. Inclined slider; 12. Inclined positioning rod; 13. Fixed plate; 14. Rotary groove; 15. Turntable; 16. Locking block; 17. Locking bolt; 18. Inclined fulcrum; 19. Telescopic assembly; 191. Support rod; 192. Sleeve; 193. Connecting piece; 194. Rack; 195. Rotating gear; 196. Rotating rod; 197. Fixing bolt; 198. Knob; 20. Limit nut. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1-4This utility model provides an embodiment of a novel bearing outer diameter measuring instrument, comprising a base 1, an instrument frame 2 and an auxiliary support 3 on the outside of the base 1, a measuring platform 4 on the top of the base 1, a lower groove 5 inside the base 1, a lower support 8 on the top of the measuring platform 4, a lower fulcrum 9 fixedly connected to the outside of the lower support 8, a lower positioning rod 7 inside the lower support 8, a lower slider 6 fixedly connected to the bottom of the lower positioning rod 7, the lower positioning rod 7 passing through the lower support 8 and fixedly connected to the top of the lower slider 6, the lower slider 6 being slidably connected inside the lower groove 5, an inclined groove 10 inside the base 1, and a fixed plate 13 on the top of the measuring platform 4, the fixed plate 13 having a rotating groove inside. 14. A turntable 15 is provided on the top of the fixed plate 13. An inclined fulcrum 18 is provided on the outside of the turntable 15. The turntable 15 is rotatably connected to the top of the fixed plate 13. A locking bolt 17 is provided inside the turntable 15. A locking block 16 is fixedly connected to the end of the locking bolt 17 away from the fixed plate 13. The locking block 16 is slidably connected inside the rotating groove 14. An inclined positioning rod 12 is provided inside the fixed plate 13. An inclined slider 11 is fixedly connected to the bottom of the inclined positioning rod 12. The inclined positioning rod 12 passes through the fixed plate 13 and is fixedly connected to the top of the inclined slider 11. The inclined slider 11 is slidably connected inside the inclined groove 10. Limit nuts 20 are threadedly connected to the outer sides of the lower positioning rod 7 and the inclined positioning rod 12. A telescopic component 19 is provided inside the turntable 15. Specifically, place the base 1 on a horizontal workbench. According to the specifications of the bearing to be measured, first adjust the height of the instrument frame 2 outside the base 1 so that its distance from the measuring table 4 matches the bearing size. Then rotate the auxiliary support 3 to a suitable angle to help stabilize the measurement environment. Loosen the lower limit nut 20 and push the lower slider 6 along the lower groove 5 through the lower positioning rod 7 so that the lower support 8 drives the lower fulcrum 9 to move to the initial position of contact with the outer ring of the bearing. After confirming the position, tighten the limit nut 20 to lock the lower slide block 6 in the lower groove 5, ensuring that the lower fulcrum 9 firmly supports the bearing. Loosen the limit nut 20 on the inclined positioning rod 12 and push the inclined slide block 11 to slide along the inclined groove 10, driving the fixed plate 13 and the upper assembly to move as a whole, achieving coarse positioning of the inclined fulcrum 18. After it is in place, tighten the limit nut 20 to fix it, loosen the locking bolt 17, so that the locking block 16 is released from the locking state of the rotating groove 14. Rotate the turntable 15 to adjust the angle between the inclined fulcrum 18 and the lower fulcrum 9 to match the curvature of the bearing outer ring. After adjustment, tighten the locking bolt 17. The angle of the turntable 15 is fixed by the engagement of the locking block 16 and the rotating groove 14, realizing the flexible adjustment of the angle of the inclined fulcrum 18.

[0021] Reference Figure 5 and Figure 6The telescopic assembly 19 includes a support rod 191, which is disposed inside the turntable 15. A sleeve 192 is fixedly connected inside the turntable 15. A connecting piece 193 is fixedly connected to the outside of the support rod 191. A rack 194 is fixedly connected to the outside of the support rod 191. A rotating gear 195 meshes with the outside of the rack 194. A rotating rod 196 is fixedly connected inside the rotating gear 195. The rotating gear 195 and the rotating rod 196 are rotatably connected inside the turntable 15. A fixing bolt 197 is fixedly connected to the top of the rotating rod 196. A knob 198 is fixedly connected to the top of the fixing bolt 197. The knob 198 is rotatably connected to the top of the turntable 15. Specifically, when the distance between the inclined fulcrum 18 and the bearing is far, the fixing bolt 197 is loosened, and the knob 198 is rotated. The knob 198 drives the rotating rod 196 to rotate, and the rotating rod 196 drives the rotating gear 195 to rotate. The rotating gear 195 meshes with the rack 194, driving the support rod 191 to slide inside the sleeve 192. The support rod 191 drives the inclined fulcrum 18 to move through the connecting piece 193. By precisely adjusting the extension length of the support rod 191, the inclined fulcrum 18 and the lower fulcrum 9 together form a two-point stable support for the outer ring of the bearing. After the inclined fulcrum 18 is adjusted to the appropriate position, the fixing bolt 197 is tightened to fix the support rod 191 and prevent it from moving, thus avoiding accidental contact with the inclined fulcrum 18 and affecting the measurement accuracy. This achieves precise support for bearings of different specifications.

[0022] Working Principle: When using this device, place the base 1 on a horizontal worktable. Based on the specifications of the bearing to be measured, first adjust the height of the instrument frame 2 outside the base 1 so that its distance from the measuring table 4 matches the bearing size. Then, rotate the auxiliary support 3 to a suitable angle to help stabilize the measurement environment. Loosen the limit nut 20, and push the lower slider 6 along the lower groove 5 via the lower positioning rod 7. This causes the lower support 8 to move the lower fulcrum 9 to the initial position of contact with the outer ring of the bearing. After confirming the position, tighten the limit nut 20 to lock the lower slider 6 within the lower groove 5, ensuring... The lower fulcrum 9 provides stable support for the bearing. The limit nut 20 on the inclined positioning rod 12 is loosened, and the inclined slider 11 is pushed to slide along the inclined groove 10, which drives the fixed plate 13 and the upper components to move as a whole, so as to achieve the coarse positioning of the inclined fulcrum 18. After it is in place, the limit nut 20 is tightened to fix it. The locking bolt 17 is loosened so that the locking block 16 is released from the locking state of the rotating groove 14. The turntable 15 is rotated to adjust the angle between the inclined fulcrum 18 and the lower fulcrum 9 to match the curvature of the outer ring of the bearing. After adjustment, the locking bolt 17 is tightened, and the angle of the turntable 15 is fixed by the engagement of the locking block 16 and the rotating groove 14. When the distance between the inclined fulcrum 18 and the bearing is far, loosen the fixing bolt 197 and turn the knob 198. The knob 198 drives the rotating rod 196 to rotate, and the rotating rod 196 drives the rotating gear 195 to rotate. The rotating gear 195 meshes with the rack 194, driving the support rod 191 to slide in the sleeve 192. The support rod 191 drives the inclined fulcrum 18 to move through the connecting piece 193. By precisely adjusting the extension length of the support rod 191, the inclined fulcrum 18 and the lower fulcrum 9 together form a two-point stable support for the outer ring of the bearing. After the inclined fulcrum 18 is adjusted to the appropriate position, tighten the fixing bolt 197 to fix the support rod 191 so that it cannot move, avoiding accidental contact with the inclined fulcrum 18 and affecting the measurement accuracy.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel bearing outer diameter measuring instrument, comprising a base (1), characterized in that: The top of the base (1) is provided with a measuring platform (4), the interior of the base (1) is provided with a lower slot (5), the top of the measuring platform (4) is provided with a lower support (8), the interior of the lower support (8) is provided with a lower positioning rod (7), the bottom of the lower positioning rod (7) is fixedly connected with a lower slider (6), the interior of the base (1) is provided with an inclined slot (10), the top of the measuring platform (4) is provided with a fixed plate (13), the interior of the fixed plate (13) is provided with a rotating groove (14), the fixed plate (13)... A turntable (15) is provided at the top of the turntable (15), and a locking bolt (17) is provided inside the turntable (15). A locking block (16) is fixedly connected to the end of the locking bolt (17) away from the fixed plate (13). An inclined positioning rod (12) is provided inside the fixed plate (13), and an inclined slider (11) is fixedly connected to the bottom of the inclined positioning rod (12). Limit nuts (20) are threadedly connected to the outer sides of the lower positioning rod (7) and the inclined positioning rod (12). A telescopic component (19) is provided inside the turntable (15).

2. A novel bearing outer diameter measuring instrument as claimed in claim 1, wherein: The telescopic assembly (19) includes a support rod (191) which is disposed inside a turntable (15). A sleeve (192) is fixedly connected inside the turntable (15). A connecting piece (193) is fixedly connected to the outside of the support rod (191). A rack (194) is fixedly connected to the outside of the support rod (191). A rotating gear (195) meshes with the outside of the rack (194). A rotating rod (196) is fixedly connected inside the rotating gear (195). A fixing bolt (197) is fixedly connected to the top of the rotating rod (196). A knob (198) is fixedly connected to the top of the fixing bolt (197).

3. A novel bearing outer diameter measuring instrument as claimed in claim 2, wherein: The knob (198) is rotatably connected to the top of the turntable (15), and the rotating gear (195) and the rotating rod (196) are rotatably connected inside the turntable (15).

4. The new type bearing outer diameter measuring instrument according to claim 1, characterized in that: The lower slider (6) is slidably connected inside the lower groove (5), and the oblique slider (11) is slidably connected inside the oblique groove (10).

5. The novel bearing outer diameter measuring instrument according to claim 1, characterized in that: The turntable (15) is rotatably connected to the top of the fixed plate (13), and the locking block (16) is slidably connected to the inside of the rotating groove (14).

6. A new type bearing outer diameter measuring instrument according to claim 1, characterized in that: The lower positioning rod (7) passes through the lower support (8) and is fixedly connected to the top of the lower slider (6), and the inclined positioning rod (12) passes through the fixed plate (13) and is fixedly connected to the top of the inclined slider (11).

7. A novel bearing outer diameter measuring instrument according to claim 1, characterized in that: The turntable (15) is provided with an inclined support (18) on its outside, and the lower support (8) is fixedly connected to a lower support (9) on its outside.

8. A new type bearing outer diameter measuring instrument according to claim 1, characterized in that: An instrument rack (2) is provided on the outside of the base (1), and an auxiliary support (3) is provided on the outside of the base (1).

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