Long shaft machining stabilizing structure
By using a flexible design of support base and abutment joint during the machining of long shafts, the problem of long shaft vibration affecting machining accuracy is solved, achieving stable support and lubrication of the shaft, and improving machining accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-07
AI Technical Summary
During the turning process of a long shaft, the distance between the fixed points at both ends of the long shaft is relatively far, and the cutting force can easily cause the long shaft to vibrate, affecting the machining accuracy.
The system employs a support base that moves with the movable tool post and an abutment on the support base. The abutment abuts against the outer surface of the shaft body to provide support. A flexible element is provided at the end of the abutment. The surface of the flexible element away from the abutment is provided with an arc-shaped surface. The flexible element contains a cavity and a spring. Multiple abutments are provided on the support base, and the spacing is adjusted by an adjusting element.
It effectively reduces vibration of long shafts during dynamic machining, improves machining accuracy, avoids scratches on the shaft surface, adapts to the machining needs of shafts of different diameters and materials, and enhances machining stability and accuracy.
Smart Images
Figure CN224088440U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of long shaft machining, in particular to a long shaft machining stability structure. BACKGROUND
[0002] Long shaft machining is an important link in the field of mechanical manufacturing, and the machining precision directly affects the performance and quality of the final product. In modern industrial production, long shaft parts are widely used in the fields of automobiles, ships, aerospace, etc., and the precision requirement of surface turning machining is increasing. In order to meet the demand of high-precision machining, the industry continuously optimizes the machining equipment and process to improve the stability and reliability of long shaft machining.
[0003] At present, in the process of long shaft surface turning machining, as shown in the prior art, Figure 1 Generally, a fixed mechanism is used on both sides of the workbench to clamp the long shaft, and the long shaft is rotated by a driving mechanism, and then cutting is completed by a moving tool table. In order to improve the machining stability, various means are often used in the prior art, such as increasing the number of fixed points, adjusting the position of the clamp or improving the tool path. However, these methods are mostly focused on static support or local reinforcement, and in actual machining, when the moving tool table approaches the middle of the long shaft, the cutting force is easy to cause the long shaft to vibrate due to the long distance between the two end fixed points of the long shaft, thereby affecting the machining precision. Therefore, further improvement is needed. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the above problems, the application provides a long shaft machining stability structure.
[0005] The application provides a long shaft machining stability structure, which adopts the following technical scheme:
[0006] A long shaft machining stability structure, comprising a support seat moving with a moving tool table and an abutting head arranged on the support seat to abut against the outer surface of the shaft body, and a flexible piece is arranged at the end of the abutting head.
[0007] By adopting the above technical scheme, by arranging the support seat moving with the moving tool table, and by arranging the abutting head on the support seat to abut against the outer surface of the shaft body, real-time abutting against the shaft body can be realized, and certain support for the shaft body when being machined by the moving tool table can be provided, so that the stability of the shaft body during machining can be effectively improved, the vibration problem caused by the machining of the moving tool table can be reduced, and the machining precision of the shaft body during machining can be improved. And by arranging the flexible piece at the end of the abutting head, the precision problem caused by the scratching of the abutting head during the rotation of the shaft body can be reduced, and the flexible piece is also adapted to the change of the outer diameter during the machining of the shaft body.
[0008] Preferably, an arc surface is arranged on the surface of the flexible piece away from the abutting head, and the axis of the arc surface is arranged close to the abutting head.
[0009] By adopting the technical scheme, the flexible member is provided with an arc surface away from the surface of the abutting head, and the axis of the arc surface is close to the abutting head, so that the cutting fluid can flow along the arc surface to the contact surface between the flexible member and the shaft body.
[0010] Preferably, the surface of the flexible member in contact with the shaft body is provided with a lubricating groove or a lubricating hole.
[0011] By adopting the technical scheme, the surface of the flexible member in contact with the shaft body is provided with a lubricating groove or a lubricating hole, so that the cutting fluid flows to the contact surface to play a lubricating role, reduces friction and wear, and further reduces the risk of wear of the surface of the shaft body in the machining process, and improves the stability of the shaft body during rotation.
[0012] Preferably, the flexible member is provided with a cavity filled with gas.
[0013] By adopting the technical scheme, the cavity filled with gas in the flexible member can enhance the buffering performance of the flexible member, effectively reduce the pressure concentration on the surface of the shaft body when the abutting head contacts the shaft body, and further improve the stability of the shaft body during rotation, while avoiding damage to the surface of the shaft body due to excessive pressure.
[0014] Preferably, the flexible member in the cavity is provided with a spring.
[0015] By adopting the technical scheme, the spring is arranged in the cavity of the flexible member, which can provide buffering effect when the shaft body is subjected to the force of the abutting head, further reduce vibration, and improve machining stability. At the same time, the restoring force of the spring can ensure that the flexible member and the shaft body maintain good contact, avoid poor contact due to changes in force during machining, and thus improve machining precision.
[0016] Preferably, the abutting head is an arc-shaped plate, and the axis of the arc-shaped plate is close to the shaft body.
[0017] By adopting the technical scheme, the abutting head is an arc-shaped plate, and the axis of the arc-shaped plate is close to the shaft body, which can increase the contact area of the abutting head and the shaft body, and make the force of the abutting head on the shaft body more evenly distributed, thereby further improving the stability of the shaft body during machining, reducing vibration, and improving machining precision.
[0018] Preferably, a plurality of abutting heads are arranged on one support seat.
[0019] By adopting the technical scheme, the arrangement of multiple abutting heads can abut the outer surface of the shaft body from different directions, further improve the stability of the shaft body during machining, effectively reduce vibration, and thus improve machining precision. At the same time, the arrangement of multiple abutting heads makes the support seat better adapt to different shapes and sizes of the shaft body, and enhances the applicability of the structure.
[0020] Preferably, the axis of one of the abutting heads is the same as the cutting direction of the moving guide table.
[0021] By adopting the above technical scheme, when the axis of one of the abutting heads is the same as the cutting direction of the moving guide table, the supporting force provided by the abutting head during the rotation of the shaft body is more concentrated near the cutting area. This helps to further improve the stability of the shaft body at the cutting point, reduce vibration caused by cutting force, and thus improve the machining precision.
[0022] Preferably, the support seat is provided with an adjusting member for adjusting the distance between the abutting head and the shaft body.
[0023] By adopting the above technical scheme, the adjusting member can flexibly adjust the distance between the abutting head and the shaft body, thereby adapting to the machining requirements of shaft bodies of different diameters and improving the versatility of the equipment. At the same time, the abutting head and the shaft body surface are ensured to maintain appropriate pressure, further improving the stability of the shaft body during machining and reducing the influence of vibration on machining precision.
[0024] Preferably, the adjusting member includes an adjusting screw threaded through the support seat and a handle provided on the adjusting screw, and the adjusting screw is connected with the abutting head.
[0025] By adopting the above technical scheme, the adjusting screw is connected with the abutting head, and manual adjustment is realized through the handle, so as to accurately control the distance between the abutting head and the shaft body and the abutting force, thereby ensuring that the abutting head provides stable supporting force to the shaft body at different machining positions. This adjustable supporting mode not only improves the stability of the long shaft during machining, but also adapts to the machining requirements of shaft bodies of different sizes and materials, further improving the machining efficiency and quality.
[0026] In summary, the present utility model has the following beneficial effects:
[0027] By moving the support seat with the moving tool table and abutting the abutting head to the outer surface of the shaft body, vibration of the long shaft during dynamic machining can be effectively reduced, and machining precision can be improved. By providing a flexible member at the end of the abutting head, scratching of the shaft body during rotation due to contact can be avoided, which is especially suitable for aluminum shaft bodies with soft surface material. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application;
[0029] Figure 2 is Figure 1 is a partial enlarged schematic diagram of part A of
[0030] Figure 3is a structural schematic view of the abutting head arranged in an arc-shaped plate in Embodiment 1 of the present application;
[0031] Figure 4 is a side view structural schematic view of the support seat in Embodiment 1 of the present application;
[0032] Figure 5 is a sectional view structural schematic view of the flexible member in Embodiment 2 of the present application.
[0033] The reference signs are explained as follows: 1, workbench; 11, fixing mechanism; 12, driving mechanism; 13, moving cutter table; 131, sliding seat; 132, connecting rod; 133, sliding rail; 14, liquid spraying pipe; 2, shaft body; 3, support seat; 4, abutting head; 5, flexible member; 51, lubricating hole; 52, cavity; 53, spring; 6, adjusting member; 61, adjusting screw; 62, handle. DETAILED DESCRIPTION
[0034] The following will be explained in combination with the accompanying Figures 1-5 The present application is further explained in detail.
[0035] The embodiment of the present application discloses a long shaft machining stabilizing structure.
[0036] Embodiment 1
[0037] The long shaft machining stabilizing structure, referring to Figure 1 , Figure 2 , comprises a support seat 3 moving with the moving cutter table 13 and an abutting head 4 arranged on the support seat 3 to abut the outer surface of the shaft body 2, wherein the end of the abutting head 4 is provided with a flexible member 5, so as to reduce the vibration in the long shaft machining process and improve the machining precision. Specifically, the scheme exerts a stable supporting force on the outer surface of the long shaft through the abutting head 4, and at the same time, the flexible member 5 can absorb the vibration energy, so as to avoid scratches on the surface of the long shaft due to hard contact.
[0038] Referring to Figure 2 , Figure 3 , wherein for the connection between the support seat 3 and the moving cutter table, specifically, the sliding seat 131 driving the moving cutter table 13 to slide is extended to the other side of the shaft body 2, the connecting rod 132 is connected between the sliding seat 131 and the support seat 3, and the sliding rail 133 is arranged on the upper surface of the workbench 1 along the length direction of the shaft body 2, and the connecting rod 132 is slidably connected to the sliding rail 133.
[0039] Wherein the abutting head 4 is arranged on the side of the support seat 3 close to the shaft body 2, in the embodiment, the abutting head 4 can refer to Figure 3The abutment 4 is set in an arc shape, with the axis of the arc shape close to the shaft 2. The flexible part 5 is set corresponding to the abutment 4 to abut against the shaft 2. It matches the outer surface of the shaft 2 to maximize the abutment area and improve the support effect. However, the arc-shaped abutment 4 can only support a limited number of shaft 2 sizes. Therefore, it may be necessary to set several abutments 4 to match the diameter of the shaft 2. When processing shafts 2 of different sizes, it is necessary to disassemble and replace them. Specifically, a mounting block can be protruded on the abutment 4. The mounting block and the abutment seat are connected by threads or snaps to facilitate installation or disassembly. The specific configuration depends on the requirements.
[0040] Or perhaps, refer to Figure 2 , Figure 4 This arrangement ensures that the surface of the abutment 4 near the shaft 2 is arc-shaped, and the surface of the flexible member 5 away from the abutment 4 is also arc-shaped, with the axis of the arc-shaped surfaces close to the abutment 4. Furthermore, to enhance support for the shaft 2, in this embodiment, several abutments 4 are arranged along the axis of the shaft 2, with one abutment 4 having its axis aligned with the cutting direction of the moving guide table and positioned opposite to it. Increasing the number of abutments 4 further enhances the support effect, particularly by providing multi-point support for different parts of the long shaft, thereby better suppressing vibration. Both methods are possible, but the latter has relatively higher adaptability; in this embodiment, the latter is specifically demonstrated.
[0041] Because multiple abutment joints 4 are provided, and the positions of the abutment joints 4 differ for bearings of different diameters, the support base 3 is equipped with an adjusting component 6 to adjust the distance between the abutment joints 4 and the shaft body 2. The adjusting component 6 specifically includes an adjusting screw 61 threaded through the support base 3 and a handle 62 attached to the adjusting screw 61. The adjusting screw 61 is connected to the abutment joint 4. The adjusting screw 61 can use a fine-pitch thread or a trapezoidal thread to achieve higher adjustment sensitivity. The handle 62 is designed as a handwheel or lever for easy and quick adjustment by the operator. During use, the abutment joints 4 will wear down; therefore, the abutment joints 4 and the adjusting screw 61 can be detachably connected, and the connection between the abutment joints 4 and the adjusting screw 61 can be threaded.
[0042] Regarding the material selection for the flexible component 5, flexible materials such as rubber, silicone, or polyurethane can be chosen, as these materials possess excellent shock absorption and wear resistance. It should be noted that the cutting fluid outlet is positioned close to the abutment 4 and sprayed onto the contact surface between the abutment 4 and the shaft 2. The cutting fluid also provides lubrication between the abutment 4 and the shaft 2. The abutment 4 applies a stable supporting force to the outer surface of the long shaft, while the flexible component 5 absorbs vibration energy, preventing scratches on the long shaft surface caused by hard contact.
[0043] The implementation principle of the long shaft machining stabilization structure in this application embodiment is as follows: the support seat 3 moves with the movable tool table 13 and abuts against the outer surface of the shaft body 2 using the abutment 4, which can effectively reduce the vibration of the long shaft during dynamic machining and improve machining accuracy; and a flexible part 5 is provided at the end of the abutment 4 to avoid scratches caused by contact during the rotation of the shaft body 2, which is especially suitable for aluminum shaft bodies 2 with softer surface materials.
[0044] Example 2:
[0045] Reference Figure 5 The difference from Embodiment 1 is that the surface of the flexible component 5 in contact with the shaft 2 can be provided with a lubrication groove or a lubrication hole 51, which can be used to store lubricating oil or cutting fluid, further reducing friction and preventing damage to the surface of the shaft 2. In this embodiment, a lubrication hole 51 is specifically shown. It should be noted that the lubrication groove can be arranged in an arc-shaped groove around the axis of the shaft 2, while the lubrication hole 51 can be designed as a circular hole or an elliptical hole, which can continuously provide lubrication and prevent the surface of the shaft 2 from being damaged by friction.
[0046] Furthermore, referring to the figure, the flexible member 5 is provided with a cavity 52 for gas filling, and a spring 53 is provided in the cavity 52. The presence of the cavity 52 enables the flexible member 5 to have a certain elastic deformation capability, which can adapt to shafts 2 of different diameters; the spring 53 plays a buffering role and provides additional support force when the abutment 4 contacts the shaft 2.
[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A long shaft machining stabilization structure, characterized in that: It includes a support base (3) that moves with the movable tool holder (13) and an abutment (4) disposed on the support base (3) to abut against the outer surface of the shaft (2), the abutment (4) having a flexible element (5) at its end.
2. The long shaft machining stabilization structure according to claim 1, characterized in that: The flexible member (5) has an arc-shaped surface on its surface away from the abutment (4), and the axis of the arc-shaped surface is located close to the abutment (4).
3. A long shaft machining stabilization structure according to claim 1 or 2, characterized in that: The flexible component (5) has a lubrication groove or lubrication hole (51) on the surface that contacts the shaft (2).
4. The long shaft machining stabilization structure according to claim 1, characterized in that: The flexible component (5) has a cavity (52) for gas filling.
5. The long shaft machining stabilization structure according to claim 4, characterized in that: The flexible component (5) is provided with a spring (53) located inside the cavity (52).
6. The long shaft machining stabilization structure according to claim 1, characterized in that: The abutment (4) is an arc-shaped plate, and the axis of the arc-shaped plate is set close to the shaft (2).
7. The long shaft machining stabilization structure according to claim 1, characterized in that: A plurality of abutment joints (4) are provided on one of the support bases (3).
8. The long shaft machining stabilization structure according to claim 7, characterized in that: One of the abutment joints (4) has its axis aligned with the cutting direction of the moving guide.
9. The long shaft machining stabilization structure according to claim 1, characterized in that: The support base (3) is provided with an adjusting component (6) for adjusting the distance between the abutment (4) and the shaft (2).
10. The long shaft machining stabilization structure according to claim 9, characterized in that: The adjusting member (6) includes an adjusting screw (61) threaded through the support base (3) and a handle (62) provided on the adjusting screw (61), the adjusting screw (61) being connected to the abutment (4).