Bearing wall thickness difference detection tool
By designing a bearing wall thickness difference detection fixture, the problem of unstable fixing of the inner and outer rings of the bearing during inspection was solved, thereby improving the accuracy and efficiency of the inspection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- C&U CO LTD
- Filing Date
- 2023-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
Existing bearing testing devices cannot stably fix the inner and outer rings of the bearing, resulting in large errors in the testing results. Furthermore, the testing angle and position cannot be adjusted, leading to poor applicability.
A bearing wall thickness difference detection fixture was designed, including a base, an outer ring fixing component, an inner ring fixing component, a detection component, a first adjusting component, and a second adjusting component. The tilt angle and position of the detection component are adjusted by the adjusting component to ensure the stability and accuracy of the bearing during the detection process.
It improves the stability and accuracy of bearing testing, reduces shaking during the testing process, and enhances testing efficiency and applicability.
Smart Images
Figure CN116678284B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bearing testing technology, specifically to a bearing wall thickness difference testing fixture. Background Technology
[0002] During the production of bearings, the machining accuracy of each batch needs to be inspected, especially the wall thickness difference between the inner and outer rings. A large wall thickness difference can easily damage other components during use. However, existing testing equipment cannot stably fix the inner and outer rings of the bearing during testing, allowing the bearing to rotate easily and resulting in significant measurement errors. Furthermore, the dial indicator on existing testing equipment cannot be adjusted along the X and Y axes or the testing angle, limiting the equipment to testing bearings of fixed dimensions and making it less versatile. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a bearing wall thickness difference detection fixture, which solves the problem of the lack of a detection fixture in the prior art for detecting the wall thickness difference between the inner and outer rings of a bearing and fixing the inner or outer ring of the bearing during the detection process.
[0004] To achieve the above objectives, the present invention provides a bearing wall thickness difference detection fixture, comprising a base, a placement surface for placing an inner or outer ring of an external bearing to be tested, an outer ring fixing member for fixing the outer ring of the external bearing to be tested and an inner ring fixing member for fixing the inner ring of the external bearing to be tested, a detection member for detecting the wall thickness difference of the external outer ring or the wall thickness difference of the external inner ring to be tested, and a first adjusting member for adjusting the tilt angle of the detection member on the placement surface and a second adjusting member for adjusting the height of the detection member on the placement surface.
[0005] The advantages of adopting the above technical solution are as follows: the operator places the outer ring or inner ring of the bearing to be tested on the placement surface and then fixes it with the outer ring fixing component or the inner ring fixing component. After fixing, the outer ring or inner ring of the bearing can be tested. The operator adjusts the height and tilt angle of the test piece on the placement surface using the first and second adjusting components, so that the test piece can be directly aligned with the groove of the outer ring or inner ring of the bearing to be tested, thereby improving the testing efficiency. At the same time, the above technical settings can improve the stability of the outer ring or inner ring of the bearing on the placement surface during the testing process, further improving the testing accuracy and avoiding the impact of shaking of the outer ring or inner ring of the bearing to be tested on the testing accuracy.
[0006] The invention further comprises: an adjusting block at the center of the placement surface; two sliding grooves on the outer walls of the adjusting block; two sliding grooves facing each other; sliding plates slidably disposed in the two sliding grooves; an adjusting hole penetrating the end face of the adjusting block along the height direction of the adjusting block; an adjusting rod threadedly connected to the adjusting hole; the adjusting hole communicating with the two sliding grooves; first teeth arranged axially on the adjusting rod; second teeth engaged with the first teeth on both sliding plates; an inner ring abutting plate extending from the beginning of the sliding plate through the corresponding sliding groove and abutting against the inner circumferential wall of the inner ring to be tested on the outside; the radial cross-section of the inner ring abutting plate being arc-shaped; and the inner ring abutting plate being the inner ring fixing component.
[0007] The advantages of adopting the above technical solution are as follows: When it is necessary to fix the inner ring of the bearing to be tested, the operator can rotate the adjusting rod so that the first tooth on the adjusting rod partially engages with the two second teeth. At this time, the two slide plates slide in their respective corresponding grooves, thereby driving the slide plates to pass through the grooves, so that the two inner ring abutment plates directly abut against the inner circumferential wall of the inner ring. This achieves the fixation of the inner ring of the bearing to be tested on the placement surface, improves the stability of the inner ring of the bearing to be tested on the placement surface, and thus improves the accuracy of the test piece. In the above technology, the inner ring abutment plates can abut against the inner ring of the bearing to be tested by rotating the adjusting rod, thereby improving efficiency, facilitating the operation of the operator, and reducing the preparation time before testing.
[0008] The invention further comprises: a hollow linkage cavity on the base, in which a main gear is movably disposed; the axis of the main gear being aligned with the axis of the adjustment hole; a linkage hole communicating with the adjustment hole on the base; a mating groove penetrating the adjustment rod along its height direction; a linkage rod sliding along the height direction of the mating groove in the mating groove; a main hole for the end of the linkage rod to be inserted and threaded into the main gear; a limit block protruding on the outer wall of the linkage rod; a limit groove for the limit block to slide along the height direction of the adjustment rod on the inner wall of the mating groove; the shape of the limit groove matching the shape of the limit block; the inner peripheral wall of the limit groove contacting the inner peripheral wall of the limit block; a circumferentially circumferentially formed rotating groove on the inner peripheral wall of the mating groove communicating with the limit groove; two linkage plates disposed in the linkage cavity; the two linkage plates being disposed opposite each other; and meshing teeth for meshing with the main gear being provided on the inner wall of each linkage plate; and corresponding linkage plates in the linkage cavity. Each movable plate is rotatably equipped with a rotating shaft, which is positioned above the corresponding linkage plate. The linkage plate has mating teeth along its length on its end face. The rotating shaft has linkage teeth on its outer periphery for meshing with adjacent and corresponding mating teeth. A secondary gear is located at one end of the rotating shaft. A vertical plate is located on the end face of the base, with a through hole on the vertical plate. A through rod slides along the axis of the through hole within the through hole. A through groove communicating with the through hole is located on the vertical plate and is connected to the linkage cavity. Two secondary gears correspond one-to-one with two through grooves. A drive gear is located in the through groove for partial meshing with the corresponding and adjacent secondary gear. Drive teeth for meshing with adjacent drive gears are located on the outer wall of the through rod along its length. One end of the through rod has an outer ring abutment plate for partial contact with the outer periphery of the outer ring to be tested. The radial cross-section of the outer ring abutment plate is arc-shaped, and the outer ring abutment plate serves as the outer ring fixing component.
[0009] The advantages of the above technical solution are as follows: When it is necessary to fix the outer ring of the bearing to be tested, the operator presses down the linkage rod, causing it to move downward in the mating groove. At this time, the limiting block on the linkage rod will disengage from the limiting groove and enter the turnover groove, so that the limiting block is no longer restricted by the limiting groove. Then, the operator rotates the linkage rod so that the end of the linkage rod engages with the thread of the main hole, thereby realizing the synchronous rotation of the main gear when the linkage rod rotates. The main gear meshes with the meshing teeth, so that when the main gear rotates, it will drive the linkage plate to slide in the linkage cavity. When the linkage plate slides, it engages with the linkage teeth through the mating teeth. The meshing mechanism causes the linkage teeth to drive the rotating shaft to rotate along its axial direction. The rotation of the rotating shaft synchronously drives the secondary gear to rotate, which in turn drives the drive gear to rotate. The drive gear meshes with the drive teeth, causing the through rod to slide along the through hole axis as it rotates. This allows the outer ring abutment plate on the through rod to abut against the outer peripheral wall of the outer ring of the bearing to be tested, thus fixing the outer ring of the bearing to be tested on the placement surface. The separate design of the linkage rod and the adjusting rod reduces the size of the base and saves operation and disassembly time, thereby improving testing efficiency.
[0010] The invention further includes the following features: guide posts are connected to both ends of the outer ring abutment plate; guide grooves are provided on the placement surface corresponding to the positions of each guide post; and the guide posts are partially slidably disposed in the guide grooves.
[0011] The advantages of adopting the above technical solution are: the setting of the guide post ensures that the outer ring abutment plate can smoothly abut against the outer peripheral wall of the outer ring to be tested when it moves, thereby ensuring the fixation of the outer ring abutment plate on the placement surface and improving its stability on the placement surface.
[0012] The present invention further comprises: a vertical pole is provided on the placement surface, a support rod is provided on the vertical pole, a swing block is movably provided at the beginning of the support rod, and the detection element includes a dial indicator provided on the swing block.
[0013] The advantages of adopting the above technical solution are: the dial indicator is used to detect the grooves of the inner and outer rings, and then to detect their wall thickness values. By subtracting the designed wall thickness data from the actual measured wall thickness data, the wall thickness difference of the bearing can be obtained. The dial indicator setting can improve the detection data.
[0014] The invention further comprises: a swing hole penetrating the beginning end of the support rod; an insert shaft for inserting into the swing hole is provided on the side wall of the swing block; a limiting shaft is inserted into the swing hole; a slot for partial insertion of the insert shaft is provided on the limiting shaft; a first adjusting tooth pattern is arranged on the outer peripheral wall of the insert shaft; a second adjusting tooth pattern for engaging with the first adjusting tooth pattern is arranged on the inner peripheral wall of the slot; a third adjusting tooth pattern is arranged on the outer peripheral wall of the limiting shaft; and a fourth adjusting tooth pattern for engaging with the third adjusting tooth pattern is arranged on the inner peripheral wall of the swing hole; the limiting shaft is the first adjusting component.
[0015] The advantages of adopting the above technical solution are as follows: When it is necessary to adjust the relative tilt angle of the dial indicator on the support rod, the operator pulls the limiting shaft out of the swing hole. At this time, the insert shaft disengages from the slot and can swing in the swing hole, realizing the adjustment of the rotation angle of the swing block on the support rod, thereby changing the angle of the dial indicator. After the dial indicator angle is adjusted, the operator inserts the limiting shaft into the swing hole, so that the insert shaft and the slot are partially engaged. At this time, the first adjusting tooth on the outer peripheral wall of the insert shaft meshes with the second adjusting tooth on the slot, making it difficult for the insert shaft to rotate in the slot, thus fixing the insert shaft in the swing hole, which indirectly fixes the swing block on the support rod. The third adjusting tooth on the limiting shaft meshes with the fourth adjusting tooth in the swing hole, thus fixing the limiting shaft in the swing hole and preventing the limiting shaft from disengaging from the swing hole. The above technical settings ensure that the dial indicator can be fixed on the support rod after adjustment, so that the dial indicator will not shake or shift when testing the outer or inner ring, thus affecting the test results.
[0016] The present invention further comprises: a plurality of insertion holes arranged along its height direction on the upright; an insertion ring for fitting onto the upright is provided at the end of the support rod; an insertion rod is inserted into one of the plurality of insertion holes; the outer peripheral wall of the insertion rod abuts against the bottom wall of the insertion ring; and the insertion rod is the second adjusting member.
[0017] The advantages of adopting the above technical solution are: when it is necessary to adjust the height of the dial indicator on the base, the operator pulls the plug rod out of the socket, and then moves the plug ring up and down, so that the plug ring drives the support rod to slide along the height of the upright, thereby realizing the adjustment of the height of the dial indicator on the base. After the adjustment is completed, the plug rod is inserted into the socket below the plug ring, thereby realizing the support of the plug rod on the plug ring and ensuring that the support rod can be fixed on the upright.
[0018] The present invention further comprises: a guide ring provided on the outer peripheral wall of the base, the guide ring having a circular radial cross-section, a slider provided on the guide ring that slides along the arc of the guide ring, and the upright being provided on the slider.
[0019] The advantages of adopting the above technical solution are as follows: In the above technology, the slider slides along the arc direction of the guide ring, allowing the operator to drive the slider to slide after adjusting the dial indicator, thus enabling the dial indicator to perform circumferential testing of the inner and outer rings to be tested, thereby improving the accuracy and stability of the test; In the above technology, the slider can be driven manually or by setting a motor or other driving method to drive the slider to slide on the guide ring; In the above technology, the support rod can be set as two rod sections, which can be connected by a threaded connection, making it easy to adjust the distance between the two rod sections, thereby adjusting the length of the support rod. This ensures that the length of the support rod can be adjusted when the slider slides to a certain position on the guide ring, ensuring that the dial indicator can contact the test points of the inner and outer rings to be tested, thus ensuring that the dial indicator can perform the test normally; In the above technology, the axis of the inner or outer ring of the bearing to be tested is aligned with the axis of the guide ring, thus ensuring that the dial indicator can make normal contact with the inner or outer ring when sliding with the slider. Attached Figure Description
[0020] Figure 1 This is a three-dimensional view of the present invention;
[0021] Figure 2 This is a cross-sectional view of the present invention;
[0022] Figure 3 This is a partial perspective view of the base in this invention;
[0023] Figure 4 This is a three-dimensional view of the linkage state structure in this invention;
[0024] Figure 5 This is an exploded view of the dial gauge adjustment state structure in this invention. Detailed Implementation
[0025] This invention provides a bearing wall thickness difference detection fixture, including a base 1. The base 1 has a placement surface 11 for placing the inner or outer ring of the bearing to be tested. The base 1 has an outer ring fixing member for fixing the outer ring of the bearing to be tested and an inner ring fixing member for fixing the inner ring of the bearing to be tested. The base 1 also has a detection component for detecting the wall thickness difference of the outer or inner ring of the bearing to be tested. The base 1 has a first adjusting member for adjusting the tilt angle of the detection component on the placement surface 11 and a second adjusting member for adjusting the height of the detection component on the placement surface 11. An adjusting block 2 is located at the center of the placement surface 11, and grooves 2 are provided on both outer walls of the adjusting block 2. 1. Two sliding grooves 21 are arranged opposite to each other, and sliding plates 22 are slidably arranged in the two sliding grooves 21. An adjustment hole 23 is passed through the end face of the adjustment block 2 along the height direction of the adjustment block 2. An adjustment rod 24 is threadedly connected to the adjustment hole 23. The adjustment hole 23 is connected to the two sliding grooves 21. The adjustment rod 24 has first teeth 241 arranged axially. Both sliding plates 22 are provided with second teeth 221 for meshing with the first teeth 241. The starting end of the sliding plate 22 passes through the corresponding sliding groove 21 and is provided with an inner ring abutment plate 222 for abutting against the inner circumferential wall of the inner ring to be tested. The radial cross section of the inner ring abutment plate 222 is arranged in an arc shape. The inner ring abutment plate 222 is the inner ring fixing component. The base 1 is hollow. A linkage cavity 12 is provided, in which a main gear 3 is movably disposed. The axis of the main gear 3 is aligned with the axis of the adjustment hole 23. A linkage hole 13 communicating with the adjustment hole 23 is provided on the base 1. A mating groove 242 extends through the adjustment rod 24 along its height direction. A linkage rod 31 slides along the height direction of the mating groove 242. A main hole 32 is provided on the main gear 3 for the end of the linkage rod 31 to be inserted and threaded. A limit block 33 protrudes from the outer wall of the linkage rod 31. A limit groove 243 is provided on the inner wall of the mating groove 242 for the limit block 33 to slide along the height direction of the adjustment rod 24. The shape of the limit groove 243 is adapted to the shape of the limit block 33. The inner peripheral wall of the 3-positioning groove 242 is in contact with the inner peripheral wall of the limiting block 33. A circumferentially circumferentially formed rotating groove 244 is provided on the inner peripheral wall of the mating groove 242, and the rotating groove 244 communicates with the limiting groove 243. Two linkage plates 34 are provided in the linkage cavity 12, with the two linkage plates 34 facing each other and each having meshing teeth 341 on its inner wall for meshing with the main gear 3. A rotating shaft 35 is rotatably mounted in the linkage cavity 12 corresponding to the positions of the two linkage plates 34, and the rotating shaft 35 is positioned above the corresponding linkage plate 34. Mating teeth 342 are provided on the end face of the linkage plate 34 along its length. Linkage teeth 351 for meshing with adjacent and corresponding mating teeth 342 are provided on the outer peripheral wall of the rotating shaft 35.A secondary gear 36 is provided at one end of the rotating shaft 35. A vertical plate 4 is provided on the end face of the base 1. A through hole 41 is provided on the vertical plate 4. A through rod 42 is slidably disposed in the through hole 41 along the axial direction of the through hole 41. A through groove 43 communicating with the through hole 41 is provided on the vertical plate 4. The through groove 43 is connected to the linkage cavity 12. The two secondary gears 36 are arranged in a one-to-one correspondence with the two through grooves 43. A drive gear 44 is provided in the through groove 43 for partial meshing with the corresponding and adjacent secondary gear 36. A drive tooth pattern 421 for meshing with the adjacent drive gear 44 is provided on the outer wall of the through rod 42 along the length direction of the through rod 42. One end of the probe 42 is provided with an outer ring abutment plate 422 for partial contact with the outer peripheral wall of the outer ring to be tested. The radial cross-section of the outer ring abutment plate 422 is arc-shaped. The outer ring abutment plate 422 is the outer ring fixing component. Guide posts 45 are connected to both ends of the outer ring abutment plate 422. A guide groove 14 is provided on the placement surface 11 corresponding to the position of each guide post 45. The guide post 45 is partially slidably disposed in the guide groove 14. A vertical rod 5 is provided on the placement surface 11. A support rod 51 is provided on the vertical rod 5. A swing block 6 is movably disposed at the beginning of the support rod 51. The testing component includes a percentage component disposed on the swing block 6. Table 7 shows that the support rod 51 has a penetrating swing hole 52 at its starting end. The side wall of the swing block 6 is provided with an insert shaft 61 for inserting into the swing hole 52. A limiting shaft 53 is inserted into the swing hole 52. The limiting shaft 53 has a slot 54 for partial insertion of the insert shaft 61. The outer peripheral wall of the insert shaft 61 has a first adjusting tooth pattern 611. The inner peripheral wall of the slot 54 has a second adjusting tooth pattern 541 for engaging with the first adjusting tooth pattern 611. The outer peripheral wall of the limiting shaft 53 has a third adjusting tooth pattern 531. The inner peripheral wall of the swing hole 52 has a fourth adjusting tooth pattern 52 for engaging with the third adjusting tooth pattern 531. 1. The limiting shaft 53 is the first adjusting component. The upright 5 has several insertion holes 55 arranged along its height direction. The end of the support rod 51 is provided with an insertion ring 511 for fitting onto the upright 5. An insertion rod 56 is inserted into one of the insertion holes 55. The outer peripheral wall of the insertion rod 56 abuts against the bottom wall of the insertion ring 511. The insertion rod 56 is the second adjusting component. A guide ring 15 is provided on the outer peripheral wall of the base 1. The guide ring 15 has a circular radial cross-section. A slider 16 is provided on the guide ring 15, sliding along the arc direction of the guide ring 15. The upright 5 is mounted on the slider 16.
[0026] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.
Claims
1. A bearing wall thickness difference detection fixture, characterized in that: The system includes a base with a placement surface for placing the inner or outer ring of an external bearing to be tested. The base has an outer ring fixing component for securing the outer ring and an inner ring fixing component for securing the inner ring. A testing component is provided on the base for detecting the wall thickness difference of the outer or inner ring of the external bearing to be tested. The base also has a first adjusting component for adjusting the tilt angle of the testing component on the placement surface and a second adjusting component for adjusting the height of the testing component on the placement surface. An adjusting block is located at the center of the placement surface. The adjusting block has sliding grooves on both outer walls, with two grooves facing each other. A sliding plate slides within the two grooves. An adjustment hole is formed through the end face of the segment block along the height direction of the adjustment block. An adjustment rod is threaded into the adjustment hole. The adjustment hole is connected to two sliding grooves. The adjustment rod has first teeth arranged axially. Both sliding plates are provided with second teeth for meshing with the first teeth. The starting end of the sliding plate extends out of the corresponding sliding groove and is provided with an inner ring abutment plate for abutting against the inner circumferential wall of the inner ring to be tested. The radial cross-section of the inner ring abutment plate is arc-shaped. The inner ring abutment plate is the inner ring fixing component. A linkage cavity is hollowed out on the base. A main gear is movably arranged in the linkage cavity. The axis of the main gear is aligned with the axis of the adjustment hole. A linkage hole communicating with the adjustment hole is formed on the base. The adjustment rod is formed through the adjustment rod along its height direction. The system includes a mating groove in which a linkage rod slides along its height. The main gear has a main hole for the end of the linkage rod to be inserted and threaded into. A limit block protrudes from the outer wall of the linkage rod. A limit groove is formed on the inner wall of the mating groove for the limit block to slide along the height of the linkage rod. The shape of the limit groove matches the shape of the limit block. The inner circumferential wall of the limit groove contacts the inner circumferential wall of the limit block. A circumferentially circumferentially formed rotational groove is formed on the inner circumferential wall of the mating groove, communicating with the limit groove. Two linkage plates are disposed in the linkage cavity, facing each other, and each plate has meshing teeth on its inner wall for meshing with the main gear. Rotating shafts are rotatably disposed in the linkage cavity corresponding to the positions of the two linkage plates. The rotating shaft is positioned above the corresponding linkage plate. The linkage plate has mating teeth along its length on its end face. The rotating shaft has linkage teeth on its outer peripheral wall for meshing with adjacent and corresponding mating teeth. A secondary gear is located at one end of the rotating shaft. A vertical plate is located on the end face of the base. A through hole is formed on the vertical plate, and a through rod slides along the axis of the through hole. A through groove communicating with the through hole is formed on the vertical plate and is connected to the linkage cavity. Two secondary gears are correspondingly positioned with two through grooves. A drive gear for partial meshing with the corresponding and adjacent secondary gear is located in the through groove. Drive teeth for meshing with adjacent drive gears are formed on the outer wall of the through rod along its length.One end of the through rod is provided with an outer ring abutment plate for partial contact with the outer peripheral wall of the outer ring to be tested. The radial cross-section of the outer ring abutment plate is arc-shaped, and the outer ring abutment plate is the outer ring fixing component.
2. The bearing wall thickness difference detection fixture according to claim 1, characterized in that: The outer ring abutment plate is connected to guide posts at both ends, and a guide groove is provided on the placement surface corresponding to the position of each guide post. The guide post is partially slidably disposed in the guide groove.
3. The bearing wall thickness difference detection fixture according to claim 1, characterized in that: A vertical pole is provided on the placement surface, a support rod is provided on the vertical pole, a swing block is movably provided at the beginning of the support rod, and the detection component includes a dial indicator provided on the swing block.
4. The bearing wall thickness difference detection fixture according to claim 3, characterized in that: The support rod has a penetrating swing hole at its starting end. The side wall of the swing block is provided with a shaft for inserting into the swing hole. A limiting shaft is inserted into the swing hole. The limiting shaft has a slot for partial insertion of the shaft. The outer peripheral wall of the shaft is provided with a first adjusting tooth pattern. The inner peripheral wall of the slot is provided with a second adjusting tooth pattern for engaging with the first adjusting tooth pattern. The outer peripheral wall of the limiting shaft is provided with a third adjusting tooth pattern. The inner peripheral wall of the swing hole is provided with a fourth adjusting tooth pattern for engaging with the third adjusting tooth pattern. The limiting shaft is the first adjusting component.
5. The bearing wall thickness difference detection fixture according to claim 3, characterized in that: The upright has several holes arranged along its height direction. The end of the support rod is provided with a ring for fitting onto the upright. A rod is inserted into one of the holes. The outer peripheral wall of the rod abuts against the bottom wall of the ring. The rod is the second adjusting component.
6. The bearing wall thickness difference detection fixture according to claim 3, characterized in that: A guide ring is provided on the outer peripheral wall of the base. The radial cross-section of the guide ring is circular. A slider is provided on the guide ring and slides along the arc direction of the guide ring. The upright is provided on the slider.