A tapered roller bearing measuring device

Abstract

The utility model relates to the field of tapered roller bearing measuring equipment discloses a kind of tapered roller bearing measuring device, including measuring table and three coordinate measuring unit, the upside of measuring table is fixedly connected with limiting table, multiple No. One clamping groove is opened in limiting table, multiple No. One clamping groove is in circumferential array distribution, the utility model is through the opening No. Two clamping grooves in push table interior, when push table is in the up-down sliding of limiting table interior, multiple No. Two sliding blocks in its interior can be indirectly driven to mutually approach or move away by No. Two clamping grooves, to realize the drive No. One sliding block in No. One clamping groove mutually approach or move away, and No. One sliding block can directly drive multiple clamping blocks to fix and position tapered roller bearing, and multiple inner clamping sliding block nesting mechanisms cooperate with each other, not only reduce the interference of external factors to precision, but also can significantly reduce system error, improve positioning accuracy, to help improve bearing measuring accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of tapered roller bearing testing equipment, and in particular to a tapered roller bearing measuring device. Background Technology

[0002] Tapered roller bearings are separable bearings, with both inner and outer rings having tapered raceways. Before use, the bearing's outer diameter typically needs to be measured to assess its accuracy. Excessive deviation in the outer diameter can lead to imbalance and increased noise during rotation, potentially affecting the smooth operation of the entire mechanical system. In practice, to improve measurement efficiency and accuracy, high-precision coordinate measuring machines (CMMs) are generally used. This involves first fixing the bearing to the CMM's worktable using a fixture, then establishing a coordinate system matching the bearing using software, setting appropriate measurement parameters based on the shape and size of the bearing raceway, and finally starting the CMM to automatically measure the bearing raceway according to the set parameters. During measurement, it's crucial to ensure stable contact between the probe and the bearing raceway surface to avoid excessive measurement errors. However, existing CMM bearing measurement devices generally suffer from low positioning accuracy in the fixtures used to fix and position tapered roller bearings.

[0003] For example, Chinese utility model patent CN221706373U discloses a width measuring device for tapered roller bearings. Although this solution can clamp and measure tapered roller bearings of various specifications through the cooperation between the positioning plate, guide rod, and rotating plate, the method of using a telescopic rod to push the rotating plate to rotate, and then using the rotating plate to drive the clamping blocks sliding on the limiting track to move closer to each other to form a clamping and fixing effect on the bearing, since both the rotating plate and the limiting track plate are exposed on the outside, dust easily accumulates on the surface. After long-term use and wear, the rotation of the rotating plate, designed with the lever principle, further amplifies the positioning error of the clamping blocks, resulting in inaccurate positioning accuracy. This will directly lead to inaccurate bearing measurement data. Based on this, a tapered roller bearing measuring device that can solve the above problems is proposed. Utility Model Content

[0004] To address the technical problem of positioning accuracy during tapered roller bearing measurement, this utility model provides a tapered roller bearing measuring device.

[0005] This utility model is achieved using the following technical solution: a tapered roller bearing measuring device, comprising a measuring table and a three-coordinate measuring unit. A limiting platform is fixedly connected to the upper side of the measuring table. The limiting platform has multiple slots of the first rank, which are arranged in a circumferential array. A slider of the first rank is slidably connected to the inner side of each slot. A connecting block is fixedly connected to the upper side of each slider of the first rank. A clamping mechanism is provided on the side of each connecting block that is close to each other. A slider driving mechanism is provided on the inner side of the measuring table to move the multiple sliders of the first rank closer to each other or further apart. A measuring machine mounting mechanism for mounting the three-coordinate measuring unit is provided on one side of the measuring table.

[0006] As a further improvement to the above solution, the clamping mechanism includes clamping blocks that are fixedly connected to one side of each of the connecting blocks, and each clamping block has a groove that matches the outer contour of the tapered roller bearing.

[0007] As a further improvement to the above solution, the first slider driving mechanism includes a pusher that is slidably connected to the inner side of the limiting platform. The pusher has multiple second slots arranged in a circular array. A second slider is slidably connected to the inner side of each second slot. The second slider is paired with the first slider, and one side of each second slider is fixedly connected to one side of the paired first slider. A pusher driving mechanism that causes the pusher to move up and down is provided on the lower side of the measuring platform.

[0008] As a further improvement to the above solution, the pusher drive mechanism includes a support plate fixedly connected to the lower side of the measuring table. A servo motor is installed on the lower side of the support plate. The output end of the servo motor passes upward through the measuring table and is fixedly connected to a lead screw. The lead screw is threadedly connected to the pusher. The upper end of the lead screw is provided with a placement platform mechanism for placing tapered roller bearings.

[0009] As a further improvement to the above solution, the placement platform mechanism includes a placement plate rotatably connected to the upper end of the lead screw, and a limit sliding rod mechanism is provided between the placement plate and the push platform.

[0010] As a further improvement to the above solution, the limiting slide bar mechanism includes multiple limiting slide grooves opened on the push platform. The multiple limiting slide grooves are distributed in a circumferential array, and each limiting slide groove has a slide bar slidably connected to the lower side of the push platform.

[0011] As a further improvement to the above solution, the measuring machine mounting mechanism includes a load-bearing frame fixedly connected to the upper side of the measuring platform, one side of the load-bearing frame being fixedly connected to the coordinate measuring unit, and an industrial control center mechanism being provided on the upper side of the load-bearing frame.

[0012] As a further improvement to the above solution, the industrial control center mechanism includes an LED control panel fixedly connected to the upper side of the load-bearing frame, the LED control panel being electrically connected to the coordinate measuring unit, and the servo motor being electrically connected to the LED control panel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model has a second slot inside the push table. When the push table slides up and down inside the limiting table, it can indirectly drive multiple second sliders inside the second slot to move closer or further away from each other. This will drive the first slider inside the first slot to move closer or further away from each other. The first slider can directly drive multiple clamping blocks to fix and position the tapered roller bearing. The multiple internal clamping slider nesting mechanisms cooperate with each other, which not only reduces the interference of external factors on accuracy, but also significantly reduces system error and improves positioning accuracy, thereby helping to improve the bearing measurement accuracy.

[0015] 2. This utility model uses a servo motor to push the pusher up and down, which in turn drives the first slider to slide in the first slot, thereby realizing the opening and closing of the clamping block. This makes the measuring device have the advantages of strong wear resistance and long service life. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a tapered roller bearing measuring device provided by this utility model;

[0017] Figure 2 for Figure 1 A bottom view;

[0018] Figure 3 for Figure 1 A partial structural diagram;

[0019] Figure 4 for Figure 3 A schematic diagram of the exploded structure;

[0020] Figure 5 This is a cross-sectional view of the pusher platform in one embodiment of the present invention.

[0021] Explanation of key symbols:

[0022] 1. Measuring table; 2. Limiting table; 3. Clamping block; 4. Coordinate measuring unit; 5. Load-bearing frame; 6. LED control panel; 7. Support plate; 8. Servo motor; 9. Slider No. 1; 10. Connecting block; 11. Lead screw; 12. Placement plate; 13. Push table; 14. Slider No. 2; 15. Slide rod; 16. Limiting slide groove; 17. Slot No. 2; 18. Slot No. 1. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 4 This embodiment of a tapered roller bearing measuring device includes a measuring platform 1 and a three-coordinate measuring unit 4. The three-coordinate measuring unit 4 can move up, down, left, right, forward, and backward. A limiting platform 2 is fixedly connected to the upper side of the measuring platform 1. In this embodiment, the limiting platform 2 is a cylindrical structure with three slots 18 arranged in a circular array. Each slot 18 has a slider 9 slidably connected to its inner side. Each slider 9 has a connecting block 10 fixedly connected to its upper side. Each connecting block 10 has a clamping mechanism on its side that is close to each other. The measuring platform 1 has a slider driving mechanism on its inner side that moves the multiple sliders 9 closer or further apart. A measuring machine mounting mechanism for mounting the three-coordinate measuring unit 4 is provided on one side of the measuring platform 1.

[0026] With the above technical solution, the first slider 9 can only move inside the first slot 18, which can effectively avoid the problem of reduced accuracy caused by external factors such as dust accumulation.

[0027] Example 2:

[0028] The clamping mechanism includes clamping blocks 3 fixedly connected to one side of each connecting block 10. Each clamping block 3 has a groove adapted to the outer contour of the tapered roller bearing, such as... Figure 4 As shown, in this embodiment, the groove layout of the clamping block 3 is a conical structure, and each clamping block 3 is distributed in a circumferential array. In this embodiment, three clamping blocks are used to achieve self-centering positioning. In other embodiments, no less than two clamping blocks 3 can be used for positioning, which is also within the protection scope of this utility model.

[0029] Example 3:

[0030] Please combine Figure 4 As shown, the first slider driving mechanism includes a push platform 13 that is slidably connected to the inner side of the limiting platform 2. The push platform 13 has a cylindrical structure and three second slots 17 are provided on the push platform 13. The three second slots 17 are arranged in a circumferential array. A second slider 14 is slidably connected to the inner side of each second slot 17. It should be noted that in this embodiment, the second slider 14 and the second slot 17 adopt an oblique layout design. When the push platform 13 descends, the three second sliders 14 move closer to each other. Conversely, when the push platform 13 rises, the three second sliders 14 move further away from each other.

[0031] The second slider 14 is paired with the first slider 9, and one side of each second slider 14 is fixedly connected to one side of the paired first slider 9. The lower side of the measuring table 1 is provided with a pusher drive mechanism that makes the pusher 13 move up and down reciprocally.

[0032] Please combine Figure 4 As shown, the pusher drive mechanism includes a support plate 7 fixedly connected to the lower side of the measuring table 1. The support plate 7 is mainly used to support the servo motor 8. The servo motor 8 is installed on the lower side of the support plate 7. The output end of the servo motor 8 passes upward through the measuring table 1 and is fixedly connected to a lead screw 11. The lead screw 11 is threadedly connected to the pusher 13. The upper end of the lead screw 11 is provided with a placement platform mechanism for placing tapered roller bearings.

[0033] Example 4:

[0034] Please combine Figure 4 As shown, the placement platform mechanism includes a placement plate 12 rotatably connected to the upper end of the lead screw 11. A limiting slide mechanism is provided between the placement plate 12 and the push platform 13. The limiting slide mechanism includes three limiting slide grooves 16 opened on the push platform 13. The three limiting slide grooves 16 are arranged in a circumferential array. Each limiting slide groove 16 has a slide rod 15 slidably connected to the inner side of the slide rod 15 and fixedly connected to the lower side of the push platform 13. In this embodiment, three slide rods 15 are used. In other embodiments, at least one slide rod 15 can be used for limiting, which can ensure that the placement plate 12 places the bearing more stably.

[0035] Please combine Figure 1 As shown, the measuring machine mounting mechanism includes a load-bearing frame 5 fixedly connected to the upper side of the measuring table 1, one side of the load-bearing frame 5 is fixedly connected to the coordinate measuring unit 4, and an industrial control center mechanism is set on the upper side of the load-bearing frame 5.

[0036] The industrial control center includes an LED control panel 6 fixedly connected to the upper side of the load-bearing frame 5. The LED control panel 6 is electrically connected to the coordinate measuring unit 4, and the servo motor 8 is electrically connected to the LED control panel 6.

[0037] The implementation principle of a tapered roller bearing measuring device in this embodiment is as follows: The bearing to be measured is placed on the placement plate 12, and then the coordinate measuring unit 4 is started through the LED control panel 6 to move the measuring machine to the upper surface of the bearing. Then, the servo motor 8 is started through the LED control panel 6 to drive the lead screw 11 to rotate. The lead screw 11 pushes the push table 13 to move downward. At this time, the second slider 14 is limited by the second slot 17, which drives multiple second sliders 14 to move closer to each other. At the same time, it drives multiple first sliders 9 to move closer to each other. The first slider 9 drives multiple clamping blocks 3 to move closer to each other through the upper connecting block 10, thereby realizing the positioning function of the bearing. Meanwhile, when the push table 13 descends, the slide rod 15 rises relative to the limiting slide groove 16. The measured data can finally be collected and displayed on the display screen of the LED control panel 6.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A tapered roller bearing measuring device, comprising a measuring table (1) and a coordinate measuring unit (4), characterized in that, The upper side of the measuring platform (1) is fixedly connected to a limiting platform (2). The limiting platform (2) is provided with multiple slots (18). The multiple slots (18) are arranged in a circular array. Each slot (18) is slidably connected to a slider (9). Each slider (9) is fixedly connected to a connecting block (10). Each connecting block (10) is provided with a clamping mechanism on the side that is close to each other. The inner side of the measuring platform (1) is provided with a slider driving mechanism that makes the multiple sliders (9) move closer or further apart. One side of the measuring platform (1) is provided with a measuring machine mounting mechanism for installing the coordinate measuring unit (4).

2. The tapered roller bearing measuring device as described in claim 1, characterized in that, The clamping mechanism includes clamping blocks (3) that are fixedly connected to one side of each of the connecting blocks (10), and each clamping block (3) has a groove that matches the outer contour of the tapered roller bearing.

3. The tapered roller bearing measuring device as described in claim 1, characterized in that, The first slider driving mechanism includes a pusher (13) that is slidably connected to the inner side of the limiting platform (2). The pusher (13) has multiple second slots (17) arranged in a circular array. Each second slot (17) has a second slider (14) slidably connected to its inner side. The second slider (14) is paired with the first slider (9) one by one, and one side of each second slider (14) is fixedly connected to one side of the paired first slider (9). The lower side of the measuring platform (1) is provided with a pusher driving mechanism that makes the pusher (13) move up and down.

4. The tapered roller bearing measuring device as described in claim 3, characterized in that, The pusher drive mechanism includes a support plate (7) fixedly connected to the lower side of the measuring table (1). A servo motor (8) is installed on the lower side of the support plate (7). The output end of the servo motor (8) passes upward through the measuring table (1) and is fixedly connected to a lead screw (11). The lead screw (11) is threadedly connected to the pusher (13). The upper end of the lead screw (11) is provided with a placement platform mechanism for placing tapered roller bearings.

5. The tapered roller bearing measuring device as described in claim 4, characterized in that, The placement platform mechanism includes a placement plate (12) rotatably connected to the upper end of the lead screw (11), and a limit slide mechanism is provided between the placement plate (12) and the push platform (13).

6. The tapered roller bearing measuring device as described in claim 5, characterized in that, The limiting slide bar mechanism includes multiple limiting slide grooves (16) opened on the push table (13). The multiple limiting slide grooves (16) are arranged in a circumferential array. Each limiting slide groove (16) has a slide bar (15) slidably connected to the lower side of the push table (13) inside.

7. The tapered roller bearing measuring device as described in claim 4, characterized in that, The measuring machine mounting mechanism includes a load-bearing frame (5) fixedly connected to the upper side of the measuring platform (1), one side of the load-bearing frame (5) is fixedly connected to the coordinate measuring unit (4), and an industrial control center mechanism is provided on the upper side of the load-bearing frame (5).

8. The tapered roller bearing measuring device as described in claim 7, characterized in that, The industrial control center includes an LED control panel (6) fixedly connected to the upper side of the load-bearing frame (5). The LED control panel (6) is electrically connected to the coordinate measuring unit (4), and the servo motor (8) is electrically connected to the LED control panel (6).

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