A machining fixture for a special-shaped part
By designing a fixture with a "┘" shaped limit block and a cylinder limit plate, the problem of poor adaptability of traditional fixtures to irregularly shaped parts was solved, achieving stable clamping and high-precision machining of irregularly shaped parts, reducing costs and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 芜湖顺威智能科技有限公司
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional machining fixtures are difficult to adapt to irregularly shaped parts, especially those with curved structures, and the complex adjustable structure increases costs and reduces reliability and service life.
A machining fixture including a "┘" shaped limiting block and a second limiting mechanism was designed. The "┘" shaped limiting block limits the upper limit in two horizontal directions, while the cylinder and limiting plate limit the upper limit in the other two directions. The inclined slide and flexible pad are used to prevent the arc-shaped parts from shifting. The structure is simple and highly adaptable.
It achieves stable clamping and fixing of irregularly shaped parts, improves machining accuracy and production efficiency, reduces manufacturing costs and extends the service life of the fixture.
Smart Images
Figure CN224310108U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of parts processing technology, and in particular relates to a processing fixture for irregularly shaped parts. Background Technology
[0002] In the field of machining, the processing of irregular-shaped parts has always been a technical challenge. Traditional machining fixtures are mostly designed for parts with regular shapes, such as squares and circles. For irregular-shaped parts, especially those with arc-shaped structures, traditional fixtures often cannot meet their processing requirements.
[0003] In order to accommodate parts of different shapes, some traditional fixtures are designed with complex adjustable structures, but this complexity not only increases manufacturing costs, but also reduces the reliability and service life of the fixtures.
[0004] To address the shortcomings of existing technologies, this utility model provides a machining fixture for irregularly shaped parts, aiming to solve the aforementioned problems. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a machining fixture for irregularly shaped parts, which can be used to clamp and fix irregularly shaped parts with square and arc-shaped structures, and has a simple structure.
[0006] To achieve the above objectives, this utility model employs the following technical solution:
[0007] A machining fixture for irregularly shaped parts, comprising:
[0008] Workbench;
[0009] A "┘" shaped limiting block is provided on the worktable to limit the irregularly shaped parts to be processed placed on the worktable in two horizontal directions.
[0010] And a second limiting mechanism, which is located on the worktable, to limit the irregular parts to be processed placed on the worktable in two other horizontal directions.
[0011] Preferably, there are two second limiting mechanisms, each comprising a cylinder and a limiting plate;
[0012] Both cylinders are mounted on the worktable, and the extension directions of the output ends of the two cylinders are parallel to the two sides of the “┘” shaped limiting block, respectively; and the output ends of the two cylinders are opposite to the opening of the “┘” shaped limiting block.
[0013] The two limiting plates are connected to the output end of the cylinder.
[0014] Preferably, the two limiting plates are respectively provided with inclined grooves, and the two limiting plates and the two inclined slide plates are provided with a plurality of threaded holes in the horizontal direction, and the threaded holes on the limiting plates and the threaded holes on the inclined slide plates are in the same thread direction.
[0015] Preferably, the second limiting mechanism further includes:
[0016] An inclined slide plate is slidably connected to the inclined groove, and a connecting column is connected to one end of the inclined slide plate near the worktable. A handle is connected to one end of the connecting column, and the handle is located on the outside of the limiting plate.
[0017] A plurality of screws, each screw being adapted to the threaded hole and threadedly connected to the threaded hole.
[0018] Preferably, each of the inclined grooves and inclined slides is inclined in the horizontal direction toward the irregular part to be processed, forming an acute angle.
[0019] Preferably, the inner side of the “┘”-shaped limiting block, near the side of the irregular part, is also provided with a “┘”-shaped flexible pad.
[0020] Preferably, each of the inclined slide plates is further provided with a flexible pad on the side near the irregular part.
[0021] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:
[0022] 1. For irregularly shaped parts with a square structure, this utility model first uses "┘" shaped limiting blocks to limit the parts in two horizontal directions (e.g., southeast direction), and then uses two cylinders and two limiting plates of the second limiting mechanism to limit the parts in two other horizontal directions (e.g., northwest direction). By limiting the parts in four horizontal directions, the irregularly shaped parts with a square structure can be clamped and fixed.
[0023] 2. For irregularly shaped parts with arc-shaped structures, this utility model allows the inclined slide plate to slide out from the inclined groove and tilt in the horizontal direction toward the irregularly shaped part to be processed, forming an acute angle. This enables the inclined slide plate to apply a clamping force toward the irregularly shaped part, effectively preventing the irregularly shaped part with arc-shaped structures from shifting upwards. Furthermore, when the inclined slide plate is not needed, it can be stored in the inclined groove. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] Figure 2 This is a partially enlarged view A of the present invention.
[0026] Figure 3 This is a front view of the present invention.
[0027] Figure 4 This is an open view of the second limiting mechanism of this utility model.
[0028] in:
[0029] 1. Workbench; 20. "┘" shaped limit block; 21. "┘" shaped flexible pad; 3. Second limit mechanism; 31. Cylinder; 32. Limit plate; 321. Inclined groove; 322. Threaded hole; 33. Inclined slide plate; 34. Connecting column; 35. Handle; 36. Screw; 37. Flexible pad II; 4. Irregularly shaped parts. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0031] In the description of this utility model, it should be understood that the terms "middle," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "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, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0032] 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.
[0033] Example 1
[0034] refer to Figures 1-4 This embodiment provides a machining fixture for irregularly shaped part 4, including:
[0035] Workbench 1;
[0036] "┘" shaped limiting block 20, the "┘" shaped limiting block 20 is provided on the worktable 1, and limits the irregular part 4 to be processed placed on the worktable 1 in two horizontal directions;
[0037] And a second limiting mechanism 3, which is located on the worktable 1, to limit the irregular part 4 to be processed placed on the worktable 1 in two other horizontal directions.
[0038] Specifically, there are two second limiting mechanisms 3, which respectively include a cylinder 31 and a limiting plate 32;
[0039] Both cylinders 31 are mounted on the worktable 1, and the extension directions of the output ends of the two cylinders 31 are parallel to the two sides of the “┘” shaped limiting block 20, respectively; and the output ends of the two cylinders 31 are opposite to the opening of the “┘” shaped limiting block 20.
[0040] The two limiting plates 32 are connected to the output end of the cylinder 31.
[0041] Working principle: When in use, place the irregular part 4 to be processed on the worktable 1 and make it fit against the inner side of the "┘" shaped limit block 20. Start the two cylinders 31, and the piston rod of the cylinder 31 extends towards the irregular part 4 until the two limit plates 32 contact the irregular part 4 respectively. Then close the two cylinders 31.
[0042] In this embodiment, for the irregularly shaped part 4 with a square structure, the present invention first uses the "┘" shaped limiting block 20 to limit it in two horizontal directions (e.g., the southeast direction), and then uses the two cylinders 31 and two limiting plates 32 of the second limiting mechanism 3 to limit it in two other horizontal directions (e.g., the northwest direction). Through the limitation in four horizontal directions, the irregularly shaped part 4 with a square structure can be clamped and fixed.
[0043] Example 2
[0044] refer to Figures 1-4 Based on Embodiment 1, the present invention also includes the following design:
[0045] Furthermore, the two limiting plates 32 are respectively provided with inclined grooves 321, and the two limiting plates 32 and the two inclined slide plates 33 are provided with a plurality of threaded holes 322 in the horizontal direction, and the threaded directions of the threaded holes 322 on the limiting plates 32 and the threaded holes 322 on the inclined slide plates 33 are consistent.
[0046] Preferably, the second limiting mechanism 3 further includes:
[0047] The inclined slide plate 33 is slidably connected to the inclined groove 321, and a connecting post 34 is connected to one end of the inclined slide plate 33 near the worktable 1. A handle 35 is connected to one end of the connecting post 34, and the handle 35 is located on the outside of the limiting plate 32.
[0048] A plurality of screws 36, each screw 36 being adapted to the threaded hole 322 and threadedly connected to the threaded hole 322.
[0049] It should be noted that each of the inclined grooves 321 and inclined slides 33 are inclined in the horizontal direction toward the irregular part 4 to be processed, forming an acute angle; so that the inclined slides 33 can apply a clamping force toward the irregular part 4, which can effectively prevent the irregular part with arc structure from shifting upward, and when the inclined slides 33 are not needed, they can be stored in the inclined grooves 321.
[0050] In order to protect the surface of the irregular part 4 from damage caused by the hard contact of the clamp, and to increase the friction between the clamp and the irregular part 4, in this embodiment, the inner side of the "┘" shaped limiting block 20 near the side of the irregular part 4 is also provided with a "┘" shaped flexible pad 21.
[0051] Similarly, in this embodiment, each of the inclined slide plates 33 is also provided with a flexible pad 37 on the side near the irregular part 4, which further improves the stability of the device.
[0052] Working principle: In use, based on the operation of Example 1, by pushing the handle 35, the two inclined slide plates 33 extend upward along the inclined groove 321, and are fixed by screws 36 in sequence threaded into the threaded holes 322 of the limiting plate 32 and the inclined slide plate 33 to prevent the irregular part 4 of the arc structure from shifting upward.
[0053] In summary, the machining fixture for irregularly shaped parts 4 of this utility model, through its reasonable design and structural layout, effectively solves the problems of poor adaptability, complex structure, and low machining accuracy of traditional fixtures when machining irregularly shaped parts 4. It has the advantages of simple structure, strong adaptability, high machining accuracy, easy operation, and high cost-effectiveness, and is of great significance for improving the machining quality and production efficiency of irregularly shaped parts 4.
[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A machining fixture for irregularly shaped parts, characterized in that, include: Workbench (1); "┘" type limiting block (20), the "┘" type limiting block (20) is provided on the worktable (1) to limit the irregular part (4) to be processed placed on the worktable (1) in two horizontal directions; And a second limiting mechanism (3), which is located on the worktable (1) and limits the irregular part (4) to be processed placed on the worktable (1) in two other horizontal directions.
2. The machining fixture for irregularly shaped parts according to claim 1, characterized in that, The second limiting mechanism (3) has two parts, which respectively include a cylinder (31) and a limiting plate (32); Both cylinders (31) are mounted on the worktable (1), and the extension directions of the output ends of the two cylinders (31) are parallel to the two sides of the "┘" shaped limiting block (20); and the output ends of the two cylinders (31) are opposite to the opening of the "┘" shaped limiting block (20); The two limiting plates (32) are connected to the output end of the cylinder (31).
3. The machining fixture for irregularly shaped parts according to claim 2, characterized in that, The two limiting plates (32) are respectively provided with inclined grooves (321), and the two limiting plates (32) and the two inclined slide plates (33) are provided with a number of threaded holes (322) in the horizontal direction. The threaded directions of the threaded holes (322) on the limiting plates (32) and the threaded holes (322) on the inclined slide plates (33) are consistent.
4. The machining fixture for irregularly shaped parts according to claim 3, characterized in that, The second limiting mechanism (3) also includes: An inclined slide plate (33) is slidably connected to the inclined groove (321), and a connecting post (34) is connected to one end of the inclined slide plate (33) near the workbench (1). A handle (35) is connected to one end of the connecting post (34), and the handle (35) is located on the outside of the limiting plate (32). A plurality of screws (36), each of the screws (36) being adapted to the threaded hole (322) and threadedly connected to the threaded hole (322).
5. The machining fixture for irregularly shaped parts according to claim 4, characterized in that, Each of the inclined grooves (321) and inclined slides (33) is inclined in the horizontal direction toward the irregular part (4) to be processed, forming an acute angle.
6. The machining fixture for irregularly shaped parts according to claim 1, characterized in that, The inner side of the "┘" shaped limiting block (20) near the side of the irregular part (4) is also provided with a "┘" shaped flexible pad (21).
7. The machining fixture for irregularly shaped parts according to claim 4, characterized in that, Each of the inclined slide plates (33) is also provided with a flexible pad (37) on the side near the irregular part (4).