Device for machining shaft sleeve
By combining the fixing components, clamping components, and press-fitting components, the problem of insecure fixing of the inner and outer sides of the multi-axis bushing is solved, realizing all-round fixing of the multi-axis bushing and improving machining accuracy and stability.
Patent Information
- Application Number
- CN202423185920.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing bushing processing equipment cannot fix multi-axis bushings in all directions, both inside and outside, resulting in unstable fixing and affecting processing accuracy and stability.
The device employs a combination of fixing components, clamping components, and pressing components. The inner side is fixed by the clamping head, the reinforcing rib is clamped by the clamping head, and the pressing plate presses the shaft sleeve seat, achieving omnidirectional fixation on both the inner and outer sides.
It improves the machining accuracy and stability of multi-axis bushings, prevents loosening and deformation, and ensures firm fixation during milling and drilling processes.
Smart Images
Figure CN223544721U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bushing processing technology, and in particular to a device for bushing processing. Background Technology
[0002] A bushing machining apparatus is a series of mechanical equipment and tools specifically designed for manufacturing and machining bushings, including CNC lathes, grinding machines, milling machines, drilling machines, tapping machines, etc. They work together to complete the forming, cutting, polishing, and inspection processes of bushings to ensure that the dimensional accuracy and surface quality of the bushings meet the design requirements.
[0003] For multi-axis bushings, milling and drilling are usually performed after fixing them on a milling machine. However, due to the complex structure of multi-axis bushings, existing bushing processing devices mostly use clamps to clamp and fix the bushings. On the one hand, this fixing method cannot fix the complex multi-axis bushings from all directions. On the other hand, clamping and fixing can only fix the outer side of the multi-axis bushing, not the inner side, and the fixation is not strong enough. Furthermore, clamping and fixing usually involves circumferential clamping of the multi-axis bushing, which hinders milling and drilling on the surface of the multi-axis bushing.
[0004] Therefore, this application provides an apparatus for machining bushings to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to provide a device for bushing processing, which solves the problem that existing bushing processing devices cannot fix multi-axis bushings in all directions, resulting in insufficient fixation of multi-axis bushings.
[0006] To solve the above-mentioned technical problems, this utility model provides a device for machining bushings, including a base, a multi-axis bushing disposed on the base, a spindle hole opened in the middle of the multi-axis bushing, and a bushing seat disposed at the bottom of the multi-axis bushing against the base;
[0007] A fixing component is provided on one axial side of the spindle hole; the fixing component includes a collet that fits into the spindle hole and is used to fix the inner side of the multi-axis bushing.
[0008] Clamping assemblies are symmetrically arranged on both radial sides of the spindle hole; the clamping assembly includes a clamping head, which is used to clamp the reinforcing ribs between the shafts on the multi-axis bushing, thereby clamping and fixing the multi-axis bushing.
[0009] The pressing assemblies are symmetrically arranged on both sides of the spindle hole in the radial direction; the pressing assemblies are adjacent to the clamping assemblies, and the pressing assemblies include pressing plates, which are used to press the bushing seats.
[0010] A further improvement of the present invention is that the fixing component further includes a first bolt rod, which passes through the clamping head connecting block and the first fixing block sequentially from top to bottom. The clamping head connecting block is provided with a clamping head that is adapted to the spindle hole. The first fixing block is abutted against the base. An adjusting spring is sleeved on the first bolt rod between the clamping head connecting block and the first fixing block. The lower end of the first bolt rod is screwed to the base.
[0011] A further improvement of this utility model is that: guide rods are symmetrically arranged on both sides of the first bolt rod, and the lower ends of the two guide rods are screwed to the base. The guide rods are smooth, and both guide rods vertically penetrate the clamp connecting block and the first fixing block.
[0012] A further improvement of the present invention is that the clamping assembly further includes a second fixing block that abuts against the base. A locking rod is threaded through the second fixing block along the radial direction of the spindle hole. A limiting head is provided at the front end of the locking rod by opening an annular groove. The limiting head has a conical structure and a clamping head is covered on the limiting head.
[0013] A further improvement of this utility model is that a guide rod is provided on the second fixing block in the same direction as the locking rod, and the guide rod is located above the locking rod.
[0014] A further improvement of this utility model is that: the clamping head has a limiting cavity adapted to the limiting head, the top of the clamping head is provided with a guide groove adapted to the guide rod, and the two sides of the guide groove are vertically connected to the clamping head with limiting rods. The limiting rods are adapted to the groove to limit and engage the groove, and the vertical distance between the two limiting rods is less than the diameter of the locking rod.
[0015] A further improvement of the present invention is that the pressing assembly further includes a support rod vertically arranged on the base, the upper end of the support rod is movably connected to one end of the pressing plate, a second bolt rod is vertically inserted through the center of the pressing plate, the bottom end of the second bolt rod is connected to the base, and a support spring is sleeved on the second bolt rod between the base and the pressing plate.
[0016] A further improvement of this utility model is that: drilling holes are made on the base corresponding to the machining holes of the multi-axis bushing.
[0017] By adopting the above technical solution, this utility model has the following beneficial effects:
[0018] 1. This utility model provides a device for machining bushings. This machining device, through the combination of a fixing component, a clamping component, and a pressing component, facilitates the all-round fixing of multi-axis bushings on both the inner and outer sides. The fixing is firm and not easy to loosen during milling and drilling, thus improving machining accuracy. Specifically, the chuck of the fixing component extends and embeds into the spindle hole to fix the inner side of the multi-axis bushing, while supporting and offsetting the external pressure brought by milling and drilling to prevent deformation of the multi-axis bushing; the clamping head of the clamping component is used to clamp the reinforcing ribs between the axes of the multi-axis bushing, and fixes the multi-axis bushing horizontally; the pressing plate of the pressing component presses the bushing seat, fixing the multi-axis bushing on the base and fixing the multi-axis bushing vertically.
[0019] 2. The present invention provides a device for processing bushings, wherein an adjusting spring is sleeved on the first bolt rod between the chuck connecting block and the first fixing block, which facilitates the vertical elastic adjustment of the chuck to adapt to the height of the multi-axis bushing, and also facilitates the chuck to abut against the inner sidewall in the spindle hole, thereby enhancing the fixation of the multi-axis bushing.
[0020] 3. The device for processing bushings provided by this utility model, through the combination of a locking rod and a clamping head, facilitates the radial translation of the clamping head along the multi-axis bushing without rotation during the movement, preventing the rotating head from misaligning with the reinforcing ribs between the shafts. Specifically, the front end of the locking rod is provided with a limiting head through an annular groove, and the clamping head is provided with a limiting cavity adapted to the limiting head. The locking rod rotates and advances within the second fixed block, and the limiting head rotates and advances accordingly. The limiting head abuts against the limiting cavity and pushes the clamping head forward. Because the top of the clamping head is provided with a guide groove adapted to a guide rod, if the clamping head has a tendency to rotate, it will be blocked by the guide rod, so that the clamping head maintains a stable state for translational movement and clamping the multi-axis bushing.
[0021] 4. The present invention provides a device for processing bushings, wherein the limiting rod is adapted to the groove and limits and engages with the groove, and the vertical distance between the two limiting rods is less than the diameter of the locking rod, which is beneficial to the locking rod during the retraction and retraction process, by engaging the limiting head with the two limiting rods, pulling the clamping head to move together, and the clamping head does not rotate during the movement. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1This is an overall schematic diagram of a device for machining bushings;
[0024] Figure 2 This is an overall schematic diagram of a device for machining bushings from another angle;
[0025] Figure 3 This is a schematic diagram of the structure of a multi-axis bushing;
[0026] Figure 4 This is a schematic diagram of a device for machining bushings without multi-axis bushings;
[0027] Figure 5 This is a structural diagram of the fixed component;
[0028] Figure 6 This is a schematic diagram of the clamping assembly.
[0029] Figure 7 This is a schematic diagram of the locking rod.
[0030] Figure 8 This is a schematic diagram of the clamping head structure;
[0031] Figure 9 This is a structural diagram of the press-fit assembly.
[0032] Reference numerals: 1. Base; 11. Drill hole; 2. Multi-axis bushing; 21. Spindle hole; 22. Bushing seat; 23. Reinforcing rib; 24. Machining hole; 3. Fixing assembly; 31. Chuck; 32. First bolt rod; 33. Chuck connecting block; 34. First fixing block; 35. Adjusting spring; 36. Guide rod; 4. Clamping assembly; 41. Clamping head; 42. Second fixing block; 43. Locking rod; 44. Groove; 45. Limiting head; 46. Guide rod; 47. Limiting cavity; 48. Guide groove; 49. Limiting rod; 5. Pressing assembly; 51. Pressing plate; 52. Support rod; 53. Second bolt rod; 54. Support spring. Detailed Implementation
[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] The present invention will be further explained below with reference to specific embodiments.
[0037] like Figures 1-9As shown, this embodiment provides an apparatus for machining bushings, including a base 1, with a drilled hole 11 on the base 1 corresponding to the machining hole 24 of the multi-axis bushing 2, the multi-axis bushing 2 being disposed on the base 1, a spindle hole 21 being formed in the middle of the multi-axis bushing 2, and a bushing seat 22 being disposed at the bottom of the multi-axis bushing 2 abutting against the base 1; a fixing component 3 is disposed on one axial side of the spindle hole 21; the fixing component 3 includes a chuck 31 adapted to the spindle hole 21, the chuck 31 being used to fix the inner side of the multi-axis bushing 2; clamping components 4 are symmetrically disposed on both radial sides of the spindle hole 21; the clamping components 4 include clamping heads 41, the clamping heads 41 being used to clamp the reinforcing ribs 23 between the shafts of the multi-axis bushing 2, thereby clamping and fixing the multi-axis bushing 2; pressing components 5 are symmetrically disposed on both radial sides of the spindle hole 21; the pressing components 5 are adjacent to the clamping components 4, the pressing components 5 including a pressing plate 51, the pressing plate 51 being used to press the bushing seat 22. This processing device, through the combined arrangement of fixing component 3, clamping component 4, and pressing component 5, facilitates comprehensive fixation of the multi-axis bushing 2 both internally and externally. The fixation is firm, preventing loosening during milling and drilling, thus improving processing accuracy. Specifically, the chuck 31 of the fixing component 3 extends and embeds into the spindle hole 21, fixing the inner side of the multi-axis bushing 2 while simultaneously supporting and counteracting external pressure during milling and drilling, preventing deformation of the multi-axis bushing 2. The clamping head 41 of the clamping component 4 clamps the reinforcing ribs 23 between the axes of the multi-axis bushing 2, providing horizontal fixation. The pressing plate 51 of the pressing component 5 presses the bushing seat 22, fixing the multi-axis bushing 2 onto the base 1, providing vertical fixation. The processing hole 24 is connected to the drilling hole 11 on the base 1, facilitating drilling and milling of the fixed multi-axis bushing 2.
[0038] like Figures 4-5 As shown, in this embodiment, the fixing component 3 further includes a first bolt rod 32. The first bolt rod 32 passes through the clamping head connecting block 33 and the first fixing block 34 sequentially from top to bottom. The clamping head connecting block 33 is provided with a clamping head 31 that adapts to the spindle hole 21. The first fixing block 34 is abutted against the base 1. An adjusting spring 35 is sleeved on the first bolt rod 32 between the clamping head connecting block 33 and the first fixing block 34. The adjusting spring 35 is beneficial for the vertical elastic adjustment of the clamping head 31 to adapt to the height of the multi-axis bushing 2, and is also beneficial for abutting against the inner sidewall in the spindle hole 21 to enhance the fixation of the multi-axis bushing 2. The lower end of the first bolt rod 32 is screwed to the base 1. Guide rods 36 are symmetrically arranged on both sides of the first bolt rod 32. The lower ends of the two guide rods 36 are screwed to the base 1. The rod body of the guide rod 36 is smooth. The two guide rods 36 vertically penetrate the clamp connecting block 33 and the first fixing block 34. The guide rods 36 guide the clamp connecting block 33, so that the clamp connecting block 33 can only move up and down in the vertical direction to prevent deviation.
[0039] like Figure 4 , Figures 6-8As shown, in this embodiment, the clamping assembly 4 further includes a second fixing block 42 abutting against the base 1. A locking rod 43 is threaded through the second fixing block 42 radially along the spindle hole 21. A limiting head 45 is provided at the front end of the locking rod 43 through an annular groove 44. The limiting head 45 has a conical structure and a clamping head 41 is provided on the limiting head 45. A guide rod 46 in the same direction as the locking rod 43 is provided on the second fixing block 42, and the guide rod 46 is located above the locking rod 43. The clamping head 41 has a limiting cavity 47 adapted to the limiting head 45. The limiting cavity 47 has a conical structure. A guide groove 48 adapted to the guide rod 46 is provided at the top of the clamping head 41. Limiting rods 49 are vertically inserted through the clamping head 41 on both sides of the guide groove 48. The limiting rods 49 are adapted to the groove 44 to limit and engage the groove 44, and the vertical distance between the two limiting rods 49 is less than the diameter of the locking rod 43. The combination of locking rod 43 and clamping head 41 facilitates the radial translation of clamping head 41 along multi-axis bushing 2 without rotation during movement, preventing clamping head 41 from misaligning with reinforcing rib 23 between shafts. Specifically, the front end of locking rod 43 is provided with a limiting head 45 through an annular groove 44, and clamping head 41 is provided with a limiting cavity 47 adapted to the limiting head 45. Locking rod 43 rotates and advances within the second fixing block 42, and limiting head 45 rotates and advances accordingly. Limiting head 45 abuts against limiting cavity 47 and pushes clamping head 41 forward. Because the top of clamping head 41 is provided with a guide groove 48 adapted to guide rod 46, if clamping head 41 has a tendency to rotate, it will be blocked by guide rod 46, thus clamping head 41 in a stable state for translational movement and clamping multi-axis bushing 2. The limiting rod 49 is adapted to the groove 44 to limit and engage the groove 44. The vertical distance between the two limiting rods 49 is less than the diameter of the locking rod 43. This is beneficial for the locking rod 43 to pull the clamping head 41 to move together during the retraction and retraction process by engaging the limiting head 45 with the two limiting rods 49. The clamping head 41 does not rotate during the movement.
[0040] like Figure 4 , Figure 9 As shown, in this embodiment, the press-fit assembly 5 further includes a support rod 52 vertically disposed on the base 1. The upper end of the support rod 52 is movably connected to one end of the press-fit plate 51. The press-fit plate 51 can rotate around the upper end of the support rod 52. A second bolt rod 53 is vertically disposed through the center of the press-fit plate 51. The bottom end of the second bolt rod 53 is connected to the base 1. A support spring 54 is sleeved on the second bolt rod 53 between the base 1 and the press-fit plate 51. By tightening the bolt on the second bolt rod 53, the press-fit plate 51 is pressed down to press and fix the bushing seat 22, pressing the bushing seat 22 onto the base 1. The support spring 54 is used to support the press-fit plate 51 and to lift the press-fit plate 51 upward during disassembly for easy assembly and disassembly.
[0041] The working principle of the technical solution provided by this utility model is as follows:
[0042] The operator places the multi-axis bushing 2 onto the base 1, ensuring the bushing seat 22 abuts against the top surface of the base 1 and the spindle hole 21 aligns with the chuck 31. The height of the chuck 31 is adjusted by adjusting the bolt on the first bolt rod 32 to match the height of the spindle hole 21. The multi-axis bushing 2 is then moved to insert the chuck 31 into the spindle hole 21. Simultaneously, the position of the multi-axis bushing 2 is adjusted so that the machining hole 24 aligns with the drill hole 11 on the base 1. The pressing plate 51 of the pressing assembly 5 presses the bushing seat 22. By tightening the bolt on the second bolt rod 53, the pressing plate 51 is pressed down to secure the bushing seat 22, pressing it firmly onto the base 1 and vertically fixing the multi-axis bushing 2. The operator then controls the clamping assembly 4 to clamp the multi-axis bushing 2 between the shafts. The reinforcing rib 23 is first rotated. The locking rod 43 has a limiting head 45 set at the front end of the locking rod 43 through an annular groove 44. The clamping head 41 has a limiting cavity 47 adapted to the limiting head 45. The locking rod 43 rotates and moves forward in the second fixing block 42. The limiting head 45 rotates and moves forward accordingly. The limiting head 45 pushes the clamping head 41 forward against the limiting cavity 47. Since the top of the clamping head 41 is provided with a guide groove 48 adapted to the guide rod 46, if the clamping head 41 has a tendency to rotate, it will be blocked by the guide rod 46, so that the clamping head 41 maintains a stable state and moves forward horizontally. The clamping head 41 fixes the reinforcing rib 23 between the shafts of the multi-axis bushing 2, realizing the horizontal and transverse fixation of the multi-axis bushing 2. After the fixation is completed, the workers process the multi-axis bushing 2.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An apparatus for machining bushings, characterized in that, Includes a base (1), a multi-axis bushing (2) is provided on the base (1), a main shaft hole (21) is opened in the middle of the multi-axis bushing (2), and a bushing seat (22) is provided at the bottom of the multi-axis bushing (2) against the base (1); A fixing component (3) is provided on one axial side of the spindle hole (21); the fixing component (3) includes a collet (31) adapted to the spindle hole (21), and the collet (31) is used to fix the inner side of the multi-axis bushing (2); Clamping assemblies (4) are symmetrically arranged on both radial sides of the spindle hole (21); the clamping assembly (4) includes a clamping head (41), which is used to clamp the reinforcing ribs (23) between the shafts on the multi-axis bushing (2), thereby clamping and fixing the multi-axis bushing (2); Press-fitting assemblies (5) are symmetrically arranged on both radial sides of the spindle hole (21); the press-fitting assemblies (5) are adjacent to the clamping assembly (4), and the press-fitting assemblies (5) include a press-fitting plate (51) for press-fitting the bushing seat (22).
2. The apparatus for machining bushings according to claim 1, characterized in that, The fixing component (3) also includes a first bolt rod (32), which passes through the head connector block (33) and the first fixing block (34) from top to bottom. The head connector block (33) is provided with a head (31) adapted to the spindle hole (21). The first fixing block (34) is abutted against the base (1). An adjusting spring (35) is sleeved on the first bolt rod (32) between the head connector block (33) and the first fixing block (34). The lower end of the first bolt rod (32) is screwed to the base (1).
3. The apparatus for machining bushings according to claim 2, characterized in that, Guide rods (36) are symmetrically arranged on both sides of the first bolt rod (32). The lower ends of the two guide rods (36) are screwed to the base (1). The rod body of the guide rod (36) is smooth. The two guide rods (36) vertically pass through the clamp connecting block (33) and the first fixing block (34).
4. The apparatus for machining bushings according to claim 1, characterized in that, The clamping assembly (4) also includes a second fixing block (42) that abuts against the base (1). The second fixing block (42) has a locking rod (43) that is threaded through the spindle hole (21) in the radial direction. The front end of the locking rod (43) is provided with a limiting head (45) through an annular groove (44). The limiting head (45) has a conical structure and a clamping head (41) is provided on the limiting head (45).
5. The apparatus for machining bushings according to claim 4, characterized in that, The second fixing block (42) is provided with a guide rod (46) in the same direction as the locking rod (43), and the guide rod (46) is located above the locking rod (43).
6. The apparatus for machining bushings according to claim 4, characterized in that, The clamping head (41) has a limiting cavity (47) adapted to the limiting head (45). The top of the clamping head (41) is provided with a guide groove (48) adapted to the guide rod (46). Limiting rods (49) are provided vertically through the clamping head (41) on both sides of the guide groove (48). The limiting rods (49) are adapted to the groove (44) to limit and engage the groove (44). The vertical distance between the two limiting rods (49) is less than the diameter of the locking rod (43).
7. The apparatus for machining bushings according to claim 1, characterized in that, The press assembly (5) also includes a support rod (52) vertically mounted on the base (1). The upper end of the support rod (52) is movably connected to one end of the press plate (51). A second bolt rod (53) is vertically mounted through the center of the press plate (51). The bottom end of the second bolt rod (53) is connected to the base (1). A support spring (54) is sleeved on the second bolt rod (53) between the base (1) and the press plate (51).
8. The apparatus for machining bushings according to claim 1, characterized in that, A drill hole (11) is made on the base (1) at the position of the machining hole (24) of the multi-axis bushing (2).