Bearing roller pin size detection tool

Abstract

The utility model discloses bearing needle size detection frock, specifically related to needle size detection technical field, including fixed box, the top fixed connection of fixed box has two support plates, and the top of fixed box and between two support plates inserts first distance measuring sensor, and the top one side fixed connection of fixed box has the support frame, and the top of support frame inserts and inserts the plug -in rod. The utility model discloses first through the support plate top "V" -shaped groove, can be placed to the needle of limiting, improves the stability of needle, avoids the inclination influence detection's accuracy, and through first pressing plate to needle top extrusion, through second distance measuring sensor detection first pressing plate and fixed box top wall body's distance, and through first distance measuring sensor detection needle bottom wall body and fixed box top wall body's distance, can be through two numerical value subtraction obtains needle diameter, and the convenient adaptation of a plurality of sizes needle carries out detection and places use.

Description

Technical Field

[0001] This utility model relates to the field of needle roller dimension inspection technology, and more specifically, to a tooling for inspecting bearing needle roller dimensions. Background Technology

[0002] Needle roller bearings are roller bearings with cylindrical rollers that are both thin and long relative to their diameter. These rollers are called needle rollers. Needle rollers have a compact radial structure and are suitable for installation in support parts with limited radial dimensions. They need to have a high load-bearing capacity. The manufacturing precision of the needle rollers directly affects the quality of the bearing. Therefore, the dimensions of the needle rollers are a very important inspection indicator in the bearing quality inspection process.

[0003] Chinese patent publication number CN220751079U discloses an automatic needle roller size detection device, including a base plate and a needle roller placement mechanism placed on the base plate. A controller, an air pump, and a hollow flow channel plate are mounted on the base plate. Multiple pneumatic detection devices are connected to the flow channel plate, with the needle rollers placed on the needle roller placement mechanism directly below each device. The air pump is connected to the flow channel plate via an air pipe, thereby driving the pneumatic detection devices connected to the flow channel plate to detect the needle roller size. The controller is electrically connected to the air pump and the pneumatic detection devices. This invention enables batch detection of needle roller sizes by the air pump driving multiple pneumatic detection devices through the flow channel plate, achieving a high degree of automation and significantly improving detection efficiency.

[0004] However, as can be seen from the accompanying drawings in the instruction manual, when measuring the length of the needle roller, the needle roller needs to be inserted into the placement hole. If the size of the placement hole is larger than the size of the needle roller, the needle roller may tilt, affecting the length measurement result. If the placement hole is smaller than the needle roller, the needle roller cannot be inserted. This makes it inconvenient to adapt to the measurement of needle rollers of various sizes. Furthermore, when measuring the length and diameter, the placement state of the needle roller needs to be changed for secondary measurement, which is inefficient. Therefore, a bearing needle roller size measurement fixture is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing needle roller dimension detection fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bearing needle roller size detection fixture, including a fixed box, two support plates fixedly connected to the top of the fixed box, which can support the needle roller; a first distance sensor is embedded in the top of the fixed box and between the two support plates, which can detect the distance between the needle roller and the top surface of the fixed box; a support frame is fixedly connected to one side of the top of the fixed box, a rod is inserted into the top of the support frame, and a first pressure plate and a fixed plate are fixedly connected to the bottom of the rod; the support frame supports the rod, and the first pressure plate moves downward to press and fix the needle roller, while making the needle roller horizontal.

[0007] A first spring is sleeved in the middle of the insertion rod, and a second distance sensor is fixedly connected to the top side of the first pressure plate. The first spring pushes the fixed plate, which can generate a downward force on the first pressure plate. The distance between the first pressure plate and the top wall of the fixed box is detected by the second distance sensor. The diameter of the needle roller can be obtained by subtracting the value detected by the first distance sensor from the value detected by the second distance sensor, which is convenient for testing.

[0008] One of the support plates has a fixed rod fixedly connected to the side away from the support frame. A second spring and a second pressure plate are sleeved in the middle of the fixed rod. A vertical plate is fixedly connected to one end of the fixed rod. A handle and a third distance sensor are fixedly connected to one side of the second pressure plate. The second spring pushes the second pressure plate, causing the second pressure plate to press against one end of the needle roller, thereby moving the needle roller until the other end of the needle roller is in contact with the side wall of the support frame. The distance between the second pressure plate and the side wall of the support frame can be detected by the third distance sensor to obtain the length of the needle roller, which is convenient for detection and use. The handle makes it easy to pull the second pressure plate, and the fixed rod improves the stability of the movement of the second pressure plate.

[0009] Preferably, an operation panel is provided on one side of the top of the fixed box. The operation panel is electrically connected to the second ranging sensor, the first ranging sensor, and the third ranging sensor. The operation panel facilitates receiving the detection results and displaying them on the display panel, making it convenient to observe the values ​​after detection.

[0010] Preferably, the top of the support plate is provided with a "V" shaped groove, the support plate is disposed between the support frame and the upright plate, and the cross-sectional shape of the support plate is set to "L" shape. The "V" shaped groove at the top of the support plate can limit the placement of the needle roller, improve the stability of the needle roller, and avoid tilting from affecting the accuracy of the test.

[0011] Preferably, the cross-sectional shape of the first pressure plate is set to "H" shape, the middle part of the first pressure plate is located between two support plates, the fixed plate is set on the top of the first pressure plate, and the first spring is set on the top of the fixed plate. The middle part of the first pressure plate is located between two support plates, which facilitates the squeezing of the middle part of the top needle roller of the support plate. The two ends of the first pressure plate facilitate the operation of the first pressure plate. The first spring pushes the fixed plate, causing the first pressure plate to generate a downward force.

[0012] Preferably, stabilizing plates are symmetrically fixedly connected to the top two sides of the fixed plate, the stabilizing plates penetrate the top of the support frame, and a limiting plate is fixedly connected to the top of the insertion rod. The stabilizing plates improve the stability of the movement of the fixed plate and the first pressure plate, and the limiting plate limits the movement range of the first pressure plate.

[0013] Preferably, the detection end of the third distance sensor is located on the side of the second pressure plate near the support frame, and one side of the third distance sensor corresponds to the wall of the support frame. The distance between the second pressure plate and the support frame can be detected by the third distance sensor, thereby obtaining the length value of the needle roller.

[0014] Preferably, the second pressure plate is located on the side of the second spring away from the upright plate, and the handle is fixed on the side of the second pressure plate close to the second spring. The handle facilitates the movement of the second pressure plate, and the second spring pushes the second pressure plate to generate a force that squeezes the needle roller.

[0015] Preferably, guide blocks are fixedly connected to both sides of the bottom of the second pressure plate, and a guide groove adapted to the guide block is opened on the top of the fixed box. One end of the guide block extends into the interior of the guide groove and a stabilizing rod is inserted therein. The stabilizing rod is fixed in the middle of the fixed box. The guide block slides inside the guide groove, and the stability of the movement of the second pressure plate is improved by cooperating with the stabilizing rod.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model firstly uses the "V" shaped groove at the top of the support plate to limit the placement of the needle roller, improve the stability of the needle roller, and avoid tilting from affecting the accuracy of the test. The first pressure plate squeezes the top of the needle roller, and the second distance sensor detects the distance between the first pressure plate and the top wall of the fixed box, and the first distance sensor also detects the distance between the bottom wall of the needle roller and the top wall of the fixed box. The diameter of the needle roller can be obtained by subtracting the two values, which is convenient for adapting to various sizes of needle rollers for testing and placement.

[0018] 2. This utility model also uses a second spring to push the second pressure plate, causing the second pressure plate to press one end of the needle roller, so that the other end of the needle roller is in contact with the support frame. The distance between the second pressure plate and the support frame is detected by a third distance sensor, thereby obtaining the length of the needle roller. The diameter and length can be detected simultaneously without changing the placement position of the needle roller, which improves the detection efficiency. Furthermore, the stability of the movement of the second pressure plate is improved by the cooperation of the guide block, the stabilizing rod, and the guide groove, thus improving the detection accuracy.

[0019] In summary, through the interaction of the above-mentioned multiple functions, the placement of the needle roller can be limited, improving the stability of the needle roller and avoiding the impact of tilting on the accuracy of the test. At the same time, it can be easily adapted to various sizes of needle rollers for testing, and can simultaneously test the diameter and length of the needle roller, thereby improving the testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0023] The attached diagram is labeled as follows: 1. Fixing box; 2. Support plate; 3. First distance sensor; 4. Support frame; 5. Insert rod; 6. First pressure plate; 7. Fixing plate; 8. First spring; 9. Second distance sensor; 10. Fixing rod; 11. Vertical plate; 12. Second spring; 13. Second pressure plate; 14. Handle; 15. Third distance sensor; 16. Operation panel; 17. Guide groove; 18. Guide block; 19. Stabilizing rod. Detailed Implementation

[0024] 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.

[0025] As attached Figure 1-3The bearing needle roller size inspection fixture shown includes a fixed box 1. Two support plates 2 are fixedly connected to the top of the fixed box 1, which can support the needle roller. A first distance sensor 3 is embedded in the top of the fixed box 1 and between the two support plates 2. The first distance sensor 3 can detect the distance between the needle roller and the top surface of the fixed box 1. A support frame 4 is fixedly connected to one side of the top of the fixed box 1. A rod 5 is inserted into the top of the support frame 4. A first pressure plate 6 and a fixed plate 7 are fixedly connected to the bottom of the rod 5. The rod 5 is supported by the support frame 4. The first pressure plate 6 moves downward to squeeze and fix the needle roller, while making the needle roller horizontal.

[0026] A first spring 8 is sleeved in the middle of the insertion rod 5, and a second distance sensor 9 is fixedly connected to the top side of the first pressure plate 6. The first spring 8 pushes the fixed plate 7, which can generate a downward force on the first pressure plate 6. The distance between the first pressure plate 6 and the top wall of the fixed box 1 is detected by the second distance sensor 9. The diameter of the needle roller can be obtained by subtracting the detection value of the first distance sensor 3 from the detection value of the second distance sensor 9, which is convenient for detection and use.

[0027] One of the support plates 2 is fixedly connected to a fixing rod 10 on the side away from the support frame 4. A second spring 12 and a second pressure plate 13 are sleeved in the middle of the fixing rod 10. A vertical plate 11 is fixedly connected to one end of the fixing rod 10. A handle 14 and a third distance sensor 15 are fixedly connected to one side of the second pressure plate 13. The second spring 12 pushes the second pressure plate 13, causing the second pressure plate 13 to press one end of the needle roller, thereby moving the needle roller until the other end of the needle roller is in contact with the side wall of the support frame 4. The distance between the second pressure plate 13 and the side wall of the support frame 4 can be detected by the third distance sensor 15 to obtain the length of the needle roller, which is convenient for detection and use. The handle 14 makes it easy to pull the second pressure plate 13, and the fixing rod 10 improves the stability of the movement of the second pressure plate 13.

[0028] As attached Figure 1-3As shown, an operation panel 16 is provided on one side of the top of the fixed box 1. The operation panel 16 is electrically connected to the second ranging sensor 9, the first ranging sensor 3, and the third ranging sensor 15. A "V" shaped groove is opened on the top of the support plate 2. The support plate 2 is set between the support frame 4 and the upright plate 11. The cross-sectional shape of the support plate 2 is set as "L" shape. The cross-sectional shape of the first pressure plate 6 is set as "H" shape. The middle part of the first pressure plate 6 is located between the two support plates 2. The fixing plate 7 is set on the top of the first pressure plate 6. The first spring 8 is set on the top of the fixing plate 7. The top sides of the top of the fixing plate 7 are symmetrically fixed with stabilizing plates. The stabilizing plates pass through the top of the support frame 4. The top of the insertion rod 5 is fixedly connected to... The device is connected to a limiting plate, and the operation panel 16 is used to conveniently receive the test results and display them on the display panel for easy observation of the test values. The "V" shaped groove at the top of the support plate 2 can limit the placement of the needle roller, improve the stability of the needle roller, and prevent tilting from affecting the accuracy of the test. The middle of the first pressure plate 6 is located between the two support plates 2, which facilitates the squeezing of the middle of the needle roller at the top of the support plate 2. The two ends of the first pressure plate 6 are convenient for operation. The first spring 8 pushes the fixed plate 7, which causes the first pressure plate 6 to generate a downward force. The stabilizing plate improves the stability of the movement of the fixed plate 7 and the first pressure plate 6. The limiting plate limits the movement range of the first pressure plate 6.

[0029] As attached Figure 1-3 As shown, the detection end of the third ranging sensor 15 is located on the side of the second pressure plate 13 near the support frame 4. One side of the third ranging sensor 15 corresponds to the wall of the support frame 4. The second pressure plate 13 is located on the side of the second spring 12 away from the upright plate 11. The handle 14 is fixed on the side of the second pressure plate 13 near the second spring 12. Guide blocks 18 are fixedly connected to both sides of the bottom of the second pressure plate 13. The top of the fixing box 1 has a guide groove 17 that matches the guide block 18. One end of the guide block 18 extends into the guide groove 17. An internal stabilizing rod 19 is inserted and fixed in the middle of the fixed box 1. The distance between the second pressure plate 13 and the support frame 4 can be detected by the third distance sensor 15, thereby obtaining the length value of the needle roller. The handle 14 facilitates the movement of the second pressure plate 13. The second spring 12 pushes the second pressure plate 13, causing the second pressure plate 13 to generate a force that squeezes the needle roller. The guide block 18 slides inside the guide groove 17, and the stability of the movement of the second pressure plate 13 is improved by cooperating with the stabilizing rod 19.

[0030] The multiple ranging sensors described in this application are model number ZYT-0100.

[0031] The working principle of this utility model is as follows: When in use, the first pressure plate 6 is moved upward, and then the needle roller is placed inside the "V" shaped groove at the top of the support plate 2 and supported by the second pressure plate 13, so that the second pressure plate 13 squeezes the second spring 12. Then, the handle 14 is pulled to separate the second pressure plate 13 from the end of the needle roller.

[0032] After the needle roller is placed, the first spring 8 pushes the fixing plate 7, causing the first pressure plate 6 to press against the top of the needle roller, thus fixing the needle roller. Then, the handle 14 is released, causing the second pressure plate 13 to press against the needle roller, thereby fitting against the end of the needle roller and making the other end of the needle roller fit against the wall of the support frame 4.

[0033] Then, the operation panel 16 controls the activation of the first distance sensor 3, the second distance sensor 9, and the third distance sensor 15. The first distance sensor 3 detects the distance between the support plate 2 and the fixed box 1, the second distance sensor 9 detects the distance between the first pressure plate 6 and the top wall of the fixed box 1, and the third distance sensor 15 detects the distance between the second pressure plate 13 and the support frame 4.

[0034] The operation panel 16 receives the detection values ​​and can obtain the diameter and length of the needle roller for convenient testing.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 fixture for measuring the dimensions of bearing needle rollers, comprising a fixed housing (1), characterized in that: The top of the fixed box (1) is fixedly connected to two support plates (2). A first ranging sensor (3) is embedded on the top of the fixed box (1) and between the two support plates (2). A support frame (4) is fixedly connected to one side of the top of the fixed box (1). A plug rod (5) is inserted into the top of the support frame (4). A first pressure plate (6) and a fixed plate (7) are fixedly connected to the bottom of the plug rod (5). A first spring (8) is sleeved in the middle of the insertion rod (5), and a second distance sensor (9) is fixedly connected to the top side of the first pressure plate (6); One of the support plates (2) is fixedly connected to a fixing rod (10) on the side away from the support frame (4). A second spring (12) and a second pressure plate (13) are sleeved in the middle of the fixing rod (10). A vertical plate (11) is fixedly connected to one end of the fixing rod (10). A handle (14) and a third distance sensor (15) are fixedly connected to one side of the second pressure plate (13).

2. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: An operation panel (16) is provided on one side of the top of the fixed box (1), and the operation panel (16) is electrically connected to the second ranging sensor (9), the first ranging sensor (3), and the third ranging sensor (15).

3. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: The top of the support plate (2) is provided with a "V" shaped groove. The support plate (2) is located between the support frame (4) and the upright plate (11). The cross-sectional shape of the support plate (2) is set as "L".

4. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: The first pressure plate (6) has an "H" shaped cross section. The middle part of the first pressure plate (6) is located between two support plates (2). The fixing plate (7) is located on the top of the first pressure plate (6). The first spring (8) is located on the top of the fixing plate (7).

5. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: The top two sides of the fixed plate (7) are symmetrically fixed with stabilizing plates, which penetrate the top of the support frame (4). The top of the insertion rod (5) is fixedly connected with a limiting plate.

6. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: The detection end of the third ranging sensor (15) is located on the side of the second pressure plate (13) near the support frame (4), and one side of the third ranging sensor (15) corresponds to the wall of the support frame (4).

7. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: The second pressure plate (13) is located on the side of the second spring (12) away from the upright plate (11), and the handle (14) is fixed on the side of the second pressure plate (13) close to the second spring (12).

8. The bearing needle roller dimension inspection fixture according to claim 1, characterized in that: Guide blocks (18) are fixedly connected to the bottom two sides of the second pressure plate (13). The top of the fixed box (1) is provided with a guide groove (17) that matches the guide block (18). One end of the guide block (18) extends into the interior of the guide groove (17) and is inserted with a stabilizing rod (19). The stabilizing rod (19) is fixed in the middle of the fixed box (1).

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