Shaft seat capable of being bent and deformed
By designing a bendable and deformable bearing seat and utilizing the elastic deformation of the extended wall and through groove, the problems of poor coaxiality of the shaft hole and inconvenience in measuring and positioning high-precision shaft parts are solved, achieving smooth shaft hole insertion and adaptive positioning for high-precision measurement.
Patent Information
- Application Number
- CN202520378740.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-05
AI Technical Summary
In shaft-hole insertion structures, poor coaxiality of the shaft hole can lead to problems such as unsmooth insertion or jamming. At the same time, when measuring high-precision shaft parts, the end face is not perpendicular to the shaft centerline, which makes positioning inconvenient.
A bendable bearing seat is designed. By setting two sets of mutually perpendicular extension walls and through grooves on the main body structure, elastic deformation is allowed under the action of external force, changing the relative angle of the two end faces to adapt to the coaxiality of the shaft hole and achieve adaptive positioning.
It achieves smooth shaft-hole insertion and high-precision shaft measurement with end-face adaptive positioning, reducing assembly errors and measurement equipment costs, and improving insertion efficiency and measurement accuracy.
Smart Images
Figure CN223849065U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of measuring or processing machine tool, especially a shaft seat of flexible deformation. BACKGROUND
[0002] With the improvement of the automation degree of processing or testing equipment, the automatic clamping positioning technology is more and more widely applied, but in order to realize the automatic docking of products and processing or measuring equipment, the processing and assembly error of products and equipment is improved.
[0003] When the shaft hole insertion structure is used for the docking structure of products and equipment, the coaxiality of the shaft hole is not good, which will cause the shaft hole insertion to be not smooth, and even the shaft hole insertion will be stuck.
[0004] In addition, when measuring the local size parameters of the shaft workpiece, the end face of the shaft is often used as the reference for measurement. Due to the existence of the machining error of the end face of the shaft, the end face and the center line of the shaft are not necessarily perpendicular, which brings inconvenience to the end positioning during measurement in the case of high precision size measurement. UTILITY MODEL CONTENTS
[0005] In view of the above-mentioned shortcomings in the prior art, the present application provides a shaft seat of flexible deformation and a shaft piece measurement reference seat, so that the coaxiality of the shaft hole can be adapted during the shaft hole insertion process, the insertion is smooth, and the end face self-adaptive positioning can also be applied to high-precision shaft piece size measurement.
[0006] The technical scheme adopted by the utility model is as follows:
[0007] A shaft seat of flexible deformation comprises:
[0008] A body structure, which is columnar;
[0009] A first through slot is located on the body structure, the number of which is two and symmetrical about the first diameter of the body structure, the first through slot penetrates the outer wall of the body structure, and the body structure between the two first through slots forms a first extension wall;
[0010] A second through slot is located on the body structure, the number of which is two and symmetrical about the second diameter of the body structure, the second through slot penetrates the outer wall of the body structure, and the body structure between the two second through slots forms a second extension wall, and the first diameter is perpendicular to the second diameter;
[0011] Wherein, the external force acts on the body structure, so that the first extension wall and / or the second extension wall are elastically deformed, and the relative angle of the end faces at both ends of the body structure is changed.
[0012] As a further improvement of the above technical scheme:
[0013] The body structure is a tubular structure;
[0014] The first through slot penetrates the inner and outer walls of the body structure, and the first extension wall is located at two ends of the first diameter;
[0015] The second through slot penetrates the inner and outer walls of the body structure, and the first extension wall is located at two ends of the second diameter.
[0016] The first diameter and the second diameter are located at the same cross section of the body structure, the first through slot is inclined towards one end of the body structure, and the second through slot is inclined towards the other end of the body structure.
[0017] Further comprising a pair of first through holes penetrating the body structure, and the body structure between the two first through holes forms the first extension wall;
[0018] Further comprising a pair of second through holes penetrating the body structure, and the body structure between the two second through holes forms the second extension wall;
[0019] The first through hole communicates with the first through slot, and the second through hole communicates with the second through slot.
[0020] The first through hole axis is parallel to the first diameter, and the second through hole axis is parallel to the second diameter.
[0021] The first extension wall and the second extension wall have the same structure size.
[0022] The first through hole and the second through hole are both cylindrical holes.
[0023] The cross section of the body structure is circular or square.
[0024] The cross section of the first through slot and the cross section of the second through slot are both in the shape of a Chinese character.
[0025] The beneficial effects of the utility model are as follows:
[0026] The utility model discloses compact structure, reasonable, convenient operation, through the body structure inner wall on setting two groups of extension walls perpendicular to each other, and the through slot is the elastic deformation of extension wall and provides space, makes the axial two parts of body structure under the action of external force can respectively occur elastic bending deformation and deviate the axis of body structure, and the deformation direction is perpendicular to each other, and then can change the relative angle of the end face of the two ends of body structure, thereby can realize the coaxiality of shaft hole in the process of inserting and fitting, makes the insertion and fitting smooth, and also can be applicable to the end face self -adaptation positioning of high -precision shaft size measurement.
[0027] The utility model also includes the following advantages:
[0028] (1) by setting the body structure of the bendable shaft seat is tubular structure, the first diameter and the second diameter can be set in the same cross section of the body structure, so that no matter how the force position of the bendable shaft seat changes, the relative inclination of the end face of the body structure to the deformation reference point is always unchanged.
[0029] (2) the cross section of the body structure is circular or square, the size of the first diameter and the second diameter is equal, the size of the first extension wall and the second extension wall is consistent, so that the two parts of the body structure in two perpendicular directions have the same deformation performance. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 is a structural schematic view (circular pipe) of the utility model.
[0031] Figure 2 is a front view of Figure 1 .
[0032] Figure 3 is a side view of Figure 1 .
[0033] Figure 4 is a sectional view of A-A section in Figure 3 .
[0034] Figure 5 is a structural schematic view (square pipe) of the utility model.
[0035] Figure 6 is a structural schematic view of the utility model applied to shaft hole floating butt joint.
[0036] Figure 7 is a local enlarged view of A in Figure 6 .
[0037] Figure 8 is a schematic view of the shaft hole insertion structure of the utility model (one).
[0038] Figure 9 is a schematic view of the shaft hole insertion structure of the utility model (two).
[0039] Figure 10 is a structural schematic view of the utility model applied to shaft end face positioning.
[0040] Among them:
[0041] 1, the first fixed part; 11, the first butt joint structure;
[0042] 2, the second fixed part; 21, the second butt joint structure;
[0043] 3, the bendable shaft seat; 31, the first connecting end; 32, the body structure; 33, the first through slot;
[0044] 34. First extension wall; 340. First diameter; 341. First through hole;
[0045] 35. Second extension wall; 350. Second diameter; 351. Second through hole;
[0046] 36. Second through slot; 37. Second connecting end;
[0047] 4. Axial drive mechanism;
[0048] 5. Shaft; 6. Positioning shaft. Detailed Implementation
[0049] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0050] Example 1:
[0051] like Figures 1-5 As shown, the bendable bearing of this embodiment includes:
[0052] Body structure 32, body structure 32 is columnar;
[0053] The first through groove 33 is located on the main body structure 32, and there are two of them. They are symmetrical about the first diameter 340 of the main body structure 32. The first through groove 33 penetrates the outer wall of the main body structure 32, and the main body structure 32 between the two first through grooves 33 forms a first extension wall 34.
[0054] The second through groove 36 is located on the main body structure 32. There are two of them and they are symmetrical about the second diameter 350 of the main body structure 32. The second through groove 36 penetrates the outer wall of the main body structure 32. The main body structure 32 between the two second through grooves 36 forms a second extension wall 35. The first diameter 340 is perpendicular to the second diameter 350.
[0055] The external force acts on the main body structure 32, causing the first extension wall 34 and / or the second extension wall 35 to undergo elastic deformation, changing the relative angle between the two end faces of the main body structure 32.
[0056] Specifically, the main body structure 32 can be made of steel, and both the first through groove 33 and the second through groove 36 can be formed on the main body structure 32 by machining. In this embodiment, the diameter refers to the line located on the cross-section of the main body structure 32 and intersecting the central axis of the main body structure 32 perpendicularly.
[0057] In this embodiment, after the extension wall undergoes elastic deformation, the width of the first through groove 33 and / or the second through groove 36 changes, the axis of the main body structure 32 bends, and after the external force disappears, the first extension wall 34 and / or the second extension wall 35 elastically reset, and the first through groove 33 and the second through groove 36 return to their initial width.
[0058] Wherein, two mutually perpendicular first extension wall 34 and second extension wall 35 make the relative angle of the two end faces of the body structure 32 change, the relative inclination direction of the two end faces of the body structure 32 can be any direction within the 360 degree range of the outer periphery of the central axis of the body structure 32, and adapt to the action direction of the external force.
[0059] Exemplary, the flexible deformation shaft seat of the embodiment is applied to the shaft hole floating butt joint, as shown in the figure, the first fixed part 1 and the second fixed part 2 need to be inserted through the shaft hole structure to realize the positioning connection of the first fixed part 1 and the second fixed part 2. Figures 6-9
[0060] As shown in the figure, one end of the flexible deformation shaft seat 3 is the first connecting end 31, the other end of the flexible deformation shaft seat 3 is the second connecting end 37, and the second connecting end 37 is connected with the moving part of the axial driving mechanism 4; one end of the second fixed part 2 is connected with the first connecting end 31, and the other end of the second fixed part 2 is the second butt joint structure 21. Figure 7 The axial driving mechanism 4 can be a linear displacement mechanism driven by a gas cylinder, and the piston rod of the gas cylinder is the moving part.
[0061] The first fixed part 1 is provided with the first butt joint structure 11 corresponding to the second butt joint structure 21, and the first butt joint structure 11 and the second butt joint structure 21 are axially inserted and matched, as shown in the figure, the end of the shaft and the end of the hole are generally provided with a chamfer structure; the axial driving mechanism 4 is used for driving the second fixed part 2 to move along the axial direction of the second butt joint structure 21.
[0062] Figure 8 Figure 9 When the shaft hole is not coaxial, during the insertion of the first butt joint structure 11 and the second butt joint structure 21, the external force acts on the body structure 32, so that the first extension wall 34 and / or the second extension wall 35 of the flexible deformation shaft seat 3 are elastically deformed, the relative angle of the first connecting end 31 and the second connecting end 37 of the body structure 32 is changed, the axial direction of the second butt joint structure 21 is adaptively adjusted, and smooth insertion is realized.
[0063] As shown in the figure, the axial direction of the second butt joint structure 21 is vertical direction. Avoid the elastic deformation of the flexible deformation shaft seat 3 caused by gravity.
[0064] Figure 7
[0065] For example, when measuring and positioning the dimensions of a high-precision shaft 5, after the radial direction of the shaft 5 is limited, the end face of the shaft 5 contacts the first connecting end 31 of the bendable and deformable bearing seat 3 to adapt to the inclination of the end face of the shaft 5, so that the end face of the shaft 5 is adaptively supported, balancing the error of the end face inclination and ensuring that the end of the shaft 5 is fully in contact and positioned.
[0066] By setting two sets of mutually perpendicular extension walls on the inner wall of the main body structure 32, and providing space for the elastic deformation of the extension walls through the through groove, the two axial parts of the main body structure 32 can undergo elastic bending deformation and deviate from the axis of the main body structure 32 under the action of external force, and the deformation directions are perpendicular to each other. This can change the relative angle of the two end faces of the main body structure 32, thereby achieving the coaxiality of the shaft hole during the shaft hole insertion process, making the insertion smooth. It can also be used for the end face adaptive positioning of high-precision shaft 5 dimension measurement.
[0067] Flexible shaft seats can be integrally formed by machining, avoiding assembly errors caused by mechanical assembly.
[0068] Example 2:
[0069] The flexible shaft seat of this embodiment, such as... Figures 1-5 As shown, the main body structure 32 is a tubular structure;
[0070] The first through groove 33 penetrates the inner and outer walls of the main body structure 32, and the first extension wall 34 is in two places and is located at both ends of the first diameter 340 respectively;
[0071] The second through groove 36 penetrates the inner and outer walls of the main body structure 32, and the first extension wall 34 is located at two points, respectively at both ends of the second diameter 350.
[0072] The first diameter 340 and the second diameter 350 are located at the same cross-section of the body structure 32, the first through groove 33 is inclined toward one end of the body structure 32, and the second through groove 36 is inclined toward the other end of the body structure 32.
[0073] The cross-sections of the first through groove 33 and the second through groove 36 are both straight. The straight through grooves are easy to process. When the four extended walls are located on the same cross-section of the main body structure 32, the inclined through grooves are used to avoid adjacent extended walls.
[0074] By setting the body structure 32 of the bendable bearing 3 to be a tubular structure, the first diameter 340 and the second diameter 350 can be set on the same cross section of the body structure 32, so that no matter how the force position of the bendable bearing 3 changes, the relative tilting deformation reference point of the two end faces of the body structure 32 remains unchanged.
[0075] For example, such as Figure 10As shown, the second connecting end 37 of the main body structure 32 is fixed, and a positioning shaft 6 is fixedly installed in the inner hole of the main body structure 32. One end of the positioning shaft 6 is fixedly connected to the second connecting end 37, and the other end of the positioning shaft 6 extends out of the main body structure 32 to cooperate with the inner hole of the shaft 5, so as to realize the coaxial positioning of the shaft 5 and the positioning shaft 6. At the same time, there is a gap between the side wall of the positioning shaft 6 and the inner hole of the main body structure 32, so that the relative angle between the first connecting end 31 and the second connecting end 37 can change relative to each other.
[0076] When positioning shaft 5, after the end face of shaft 5 contacts the end face of the first connecting end 31 of the body structure 32, axial pressure is applied to the first connecting end 31. After the first connecting end 31 swings, it adapts to the inclination of the end face of shaft 5. The center point of the end face of shaft 5 is always located on the axis of positioning shaft 6. Combined with the radial limiting effect of positioning shaft 6, when the end face of the first connecting end 31 is tilted, one side of the end face of the first connecting end 31 on both sides of the axis of positioning shaft 6 is raised and the other side is lowered. This ensures that the center point of the end face of shaft 5 remains unchanged even if there is a contour error. It can be approximately equivalent to the center point of the end face of shaft 5 being located on the end face of the first connecting end 31 in the initial state. That is, the end face of the first connecting end 31 in the initial state can be used as the measurement reference for the dimensional parameters on shaft 5.
[0077] The aforementioned reference surface can be determined through a mechanical structure. Compared to the existing method of determining the reference surface by measuring the end face of the shaft component 5 using multiple sensors, this eliminates the time required for setting up multiple sensors and performing measurement calculations, thereby increasing measurement speed and reducing the cost of the measuring equipment. Furthermore, the positioning accuracy and deformation accuracy of the reference surface can be guaranteed through machining accuracy, avoiding the impact of sensor installation accuracy, debugging, and measurement errors.
[0078] Example 3:
[0079] The flexible shaft seat of this embodiment, such as... Figures 1-5 As shown, it also includes a pair of first through holes 341 penetrating the body structure 32, and the body structure 32 between the two first through holes 341 forms a first extension wall 34.
[0080] It also includes a pair of second through holes 351 penetrating the body structure 32, and the body structure 32 between the two second through holes 351 forms a second extension wall 35;
[0081] The first through hole 341 is connected to the first through groove 33, and the second through hole 351 is connected to the second through groove 36.
[0082] When the main body structure 32 is a tubular structure, the two ends of the first through groove 33 are respectively connected to the first through hole 341, and the two ends of the second through groove 36 are respectively connected to the second through hole 351.
[0083] The first through hole 341 is parallel to the first diameter 340 in axis; the second through hole 351 is parallel to the second diameter 350 in axis.
[0084] The first and second extension walls 34 and 35 are identical in structure size.
[0085] The first and second through holes 341 and 351 are both cylindrical holes.
[0086] The cylindrical through holes parallel to each other facilitate the forming of the first and second extension walls 34 and 35. The diameters of the first and second through holes 341 and 351 are equal, ensuring that the longitudinal section structure of the first and second extension walls 34 and 35 are identical, as shown in Figure 2 、 Figure 3 The first and second extension walls 34 and 35 are overall in the shape of a narrow waist, ensuring that the first and second extension walls 34 and 35 have good resilience.
[0087] The cross section of the body structure 32 is circular or square. When the body structure 32 is square, the first and second diameters 340 and 350 are the diameters of the inscribed circle of the square, as shown in Figure 5 .
[0088] The cross section of the body structure 32 is circular or square, the first and second diameters 340 and 350 are identical in size, and the first and second extension walls 34 and 35 are consistent in size, so that the two axial parts of the body structure 32 have the same deformation performance in two perpendicular directions.
[0089] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined in the claims. Within the scope of the utility model, any form of modification is possible.
Claims
1. A bendable and deformable axle seat, characterized by: include: The main body structure (32) is columnar; The first through groove (33) is located on the main body structure (32), there are two of them and they are symmetrical about the first diameter (340) of the main body structure (32). The first through groove (33) penetrates the outer wall of the main body structure (32), and the main body structure (32) between the two first through grooves (33) forms a first extension wall (34). The second through groove (36) is located on the main body structure (32), there are two of them and they are symmetrical about the second diameter (350) of the main body structure (32). The second through groove (36) penetrates the outer wall of the main body structure (32). The main body structure (32) between the two second through grooves (36) forms a second extension wall (35). The first diameter (340) is perpendicular to the second diameter (350). The external force acts on the main body structure (32), causing the first extension wall (34) and / or the second extension wall (35) to undergo elastic deformation, changing the relative angle between the two end faces of the main body structure (32).
2. The bendably deformable shaft mount of claim 1, wherein: The main body structure (32) is a tubular structure; The first through groove (33) penetrates the inner and outer walls of the main body structure (32), and the first extension wall (34) is in two places and is located at both ends of the first diameter (340); The second through groove (36) penetrates the inner and outer walls of the main body structure (32), and the first extension wall (34) is in two places and is located at both ends of the second diameter (350).
3. A bendably deformable axle seat as in claim 2 wherein: The first diameter (340) and the second diameter (350) are located in the same cross section of the body structure (32), the first through groove (33) is inclined toward one end of the body structure (32), and the second through groove (36) is inclined toward the other end of the body structure (32).
4. The bendable bearing as described in claim 1, characterized in that: It also includes a pair of first through holes (341) penetrating the body structure (32), and the body structure (32) between the two first through holes (341) forms the first extension wall (34); It also includes a pair of second through holes (351) penetrating the body structure (32), and the body structure (32) between the two second through holes (351) forms the second extension wall (35); The first through hole (341) is connected to the first through groove (33), and the second through hole (351) is connected to the second through groove (36).
5. The bendably deformable shaft mount of claim 4, wherein: The axis of the first through hole (341) is parallel to the first diameter (340); the axis of the second through hole (351) is parallel to the second diameter (350).
6. The bendably deformable shaft mount of claim 4, wherein: The first extension wall (34) and the second extension wall (35) have the same structural dimensions.
7. A bendably deformable axle seat as in claim 6 wherein: Both the first through hole (341) and the second through hole (351) are cylindrical holes.
8. The bendably deformable shaft mount of claim 1, wherein: The cross-section of the main body structure (32) is circular or square.
9. The bendably deformable shaft mount of claim 1, wherein: The cross-sections of the first through groove (33) and the second through groove (36) are both straight.