A pressing device and processing system for thin-walled parts

Abstract

The utility model provides a kind of for thin-walled parts's presser and processing system, it is related to part processing technical field, for thin-walled parts's presser includes base, positioning table and presser assembly, presser assembly includes pressing plate, first bar, second bar, first nut and second nut, first bar, second bar and positioning table are sequentially spaced on base, positioning table is used to place thin-walled part, pressing plate includes horizontal part and the bending part bending towards the direction close to base, first bar and second bar end away from base respectively penetrate in horizontal part, the end face of bending part away from horizontal part is inclined plane, and it is used to be pressed with the inclined plane of thin-walled part resistance;First nut is threadedly connected in first bar;Second nut is threadedly connected in second bar.The utility model for thin-walled parts's presser, compared to prior art, can guarantee the presser effect of thin-walled parts without exerting greater presser force.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, and more specifically, to a clamping device and processing system for thin-walled parts. Background Technology

[0002] With the development of aviation technology, there are many types of parts materials, and many parts are thin-walled, so they are not suitable for heavy pressure during processing.

[0003] Currently, most traditional fixtures use planar clamping, which relies on the friction between the part, the pressure plate, and the fixture support surface to position the part. However, for some thin-walled parts with special structures, such as parts with fewer planar parts and more inclined parts, the planar clamping method of traditional fixtures requires a large clamping force to ensure the clamping effect. This results in significant deformation of the part after machining, which fails to meet the requirements. Utility Model Content

[0004] The problem this invention aims to solve is: how to ensure the clamping effect of thin-walled parts without applying a large clamping force.

[0005] This utility model provides a clamping device for thin-walled parts, comprising: a base, a positioning platform, and a clamping assembly. The clamping assembly includes a pressure plate, a first rod, a second rod, a first nut, and a second nut. The first rod, the second rod, and the positioning platform are sequentially spaced on the base. The positioning platform is used to place the thin-walled part. The pressure plate includes a horizontal portion and a bent portion that bends towards the base. The ends of the first rod and the second rod away from the base respectively pass through the horizontal portion. The end face of the bent portion away from the horizontal portion is an inclined surface and is used to abut against the pressure inclined surface of the thin-walled part. The first nut is threadedly connected to the first rod and is used to abut against the end face of the horizontal portion facing the base. The second nut is threadedly connected to the second rod and is used to abut against the end face of the horizontal portion away from the base.

[0006] The present invention provides a clamping device for thin-walled parts, which, compared with the prior art, has the following beneficial effects, but is not limited to:

[0007] The clamping device for thin-walled parts described in this utility model is used by first arranging a first rod, a second rod, and a positioning platform sequentially and spaced apart on the upper surface of a base. The first and second rods are parallel to each other and arranged vertically. The thin-walled part is then placed on the positioning platform, which supports it. A pressure plate (horizontal portion) is then inserted through the upper ends of the first and second rods, with the first and second rods respectively penetrating the pressure plate (horizontal portion). Under gravity, the pressure plate contacts the first nut threaded onto the first rod. Simultaneously, the bent end of the pressure plate away from the horizontal portion abuts against the inclined surface of the thin-walled part. A preload is then applied via the second nut. The pressure plate is pressed onto the thin-walled part. The end face of the bent part of the pressure plate that contacts the thin-walled part is inclined, and the slope of this inclined surface can be designed and manufactured based on the slope of the pressure-bearing inclined surface of the thin-walled part. This allows the end face of the bent part that contacts the thin-walled part to fit precisely against the pressure-bearing inclined surface of the thin-walled part. At this time, the clamping force of the pressure plate on the thin-walled part can be divided into axial clamping force in the vertical direction and radial clamping force in the horizontal direction. The positioning of the thin-walled part is achieved by the resultant force of the radial clamping force and the frictional force between the thin-walled part and the positioning table. Compared with the planar clamping method of traditional fixtures, the clamping effect on the thin-walled part can be improved under the same clamping force, ensuring that the part will not be deformed after processing and meeting the design requirements.

[0008] Optionally, the first rod is connected to the base in a vertical direction, and a first through hole is provided on the horizontal part, with the upper end of the first rod passing through the first through hole.

[0009] Optionally, the base has a second through hole, and a bushing is installed in the second through hole; the horizontal part has a third through hole, and the second rod passes through the bushing and the third through hole in the vertical direction; the lower end of the second rod is provided with a frustum, which is used to abut against the end face of the bushing away from the pressure plate.

[0010] Optionally, both the first rod and the second rod are screws.

[0011] Optionally, a rubber pad is provided on the end face of the bent portion that abuts against the thin-walled member.

[0012] Optionally, the clamping assembly further includes an extension plate, which is detachably connected to the end face of the bent portion for abutting against the thin-walled member, and the cross-sectional dimension of the extension plate is larger than the end face of the bent portion for abutting against the thin-walled member.

[0013] Optionally, the angle between the horizontal portion and the bent portion is an obtuse angle.

[0014] Optionally, multiple sets of clamping assemblies are spaced apart on the base, and the pressure plates of each set of clamping assemblies are used to jointly abut against the thin-walled member.

[0015] Optionally, the positioning stage is a ring-shaped stage.

[0016] In addition, this utility model also provides a processing system for thin-walled parts, including a cutting device, a rotary mechanism, and a clamping device for thin-walled parts as described above. The rotary mechanism is connected to the base of the clamping device for thin-walled parts and is used to drive the base to rotate. The cutting device is used to cut the blank contour of the thin-walled parts.

[0017] Since the technical improvements and effects of the processing system for thin-walled parts are the same as those of the clamping device for thin-walled parts, the technical effects of the processing system for thin-walled parts will not be described in detail. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a clamping device for thin-walled parts according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the expansion plate in an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Positioning platform; 3. Pressure plate; 31. Horizontal part; 32. Bending part; 4. First rod; 5. Second rod; 6. First nut; 7. Second nut; 8. Bushing; 9. Frustum; 10. Extension plate; 100. Thin-walled part; a. Pressure inclined surface; b. Raw material outline; c. Part outline; d. Rotation center. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; 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.

[0025] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0026] Furthermore, in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents down; in the attached diagram, the X-axis represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents left, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents right.

[0027] It should also be noted that the meanings of the aforementioned Z-axis and X-axis are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 on this utility model.

[0028] like Figure 1As shown, the clamping device for thin-walled parts according to an embodiment of the present invention includes: a base 1, a positioning platform 2, and a clamping assembly. The clamping assembly includes a pressure plate 3, a first rod 4, a second rod 5, a first nut 6, and a second nut 7. The first rod 4, the second rod 5, and the positioning platform 2 are sequentially spaced on the base 1. The positioning platform 2 is used to place the thin-walled part 100. The pressure plate 3 includes a horizontal portion 31 and a bent portion 32 that bends toward the base 1. The ends of the first rod 4 and the second rod 5 away from the base 1 respectively pass through the horizontal portion 31. The end face of the bent portion 32 away from the horizontal portion 31 is an inclined surface and is used to abut against the pressure inclined surface a of the thin-walled part 100. The first nut 6 is threadedly connected to the first rod 4 and is used to abut against the end face of the horizontal portion 31 toward the base 1. The second nut 7 is threadedly connected to the second rod 5 and is used to abut against the end face of the horizontal portion 31 away from the base 1.

[0029] In this embodiment, in conjunction with the appendix Figure 1 As shown, in use, the first rod 4, the second rod 5, and the positioning platform 2 are first arranged sequentially and at intervals on the upper surface of the base 1 (see attached diagram). Figure 1 (in the positive Z-axis direction), where the first member 4 and the second member 5 are parallel to each other and along the vertical direction (see attached). Figure 1 The thin-walled component 100 is set in the Z-axis direction, and then placed on the positioning table 2. The positioning table 2 supports the thin-walled component 100. Then, the pressure plate 3 (horizontal part 31) is inserted through the upper ends of the first rod 4 and the second rod 5, wherein the first rod 4 and the second rod 5 respectively pass through the pressure plate 3 (horizontal part 31). At this time, the pressure plate 3 contacts the first nut 6 threadedly connected to the first rod 4 under the action of gravity. At the same time, the end face of the bent part 32 of the pressure plate 3 away from the horizontal part 31 is in contact with the thin-walled component 100. The pressure-bearing inclined surfaces a abut against each other, and then a preload is applied by the second nut 7, causing the pressure plate 3 to press against the thin-walled component 100. The end face of the bent portion 32 of the pressure plate 3 that contacts the thin-walled component 100 is an inclined surface, and the slope of this inclined surface is designed and manufactured based on the slope of the pressure-bearing inclined surface a of the thin-walled component 100, so that the end face of the bent portion 32 that contacts the thin-walled component 100 can fit precisely against the pressure-bearing inclined surface a of the thin-walled component 100. At this time, the clamping force exerted by the pressure plate 3 on the thin-walled component 100 can be divided into the vertical direction (see attached...). Figure 1 The axial clamping force (in the Z-axis direction) and the horizontal force (attached) Figure 1 The radial clamping force (in the X-axis direction) is used to position the thin-walled part 100 by the resultant force of the radial clamping force and the friction between the thin-walled part 100 and the positioning table 2. Compared with the traditional clamping method of planar clamping, the clamping effect of the thin-walled part 100 can be improved under the same clamping force, ensuring that the part will not be deformed after processing and meeting the design requirements.

[0030] In other embodiments, the horizontal portion 31 and the bent portion 32 of the pressure plate 3 can be separate structures, wherein the bent portion 32 can be damped and rotatably connected to the horizontal portion 31. This allows the deflection angle of the bent portion 32 to be adjusted so that the end face of the bent portion 32 that contacts different thin-walled parts 100 is completely attached to the pressure surface of different thin-walled parts 100, eliminating the need to design different pressure plates 3 for different thin-walled parts 100.

[0031] Optionally, the first rod 4 is connected to the base 1 in a vertical direction, and a first through hole is provided on the horizontal part 31, with the upper end of the first rod 4 passing through the first through hole.

[0032] In this embodiment, in conjunction with the appendix Figure 1 As shown, the first rod 4 can be a screw, or the upper half of the first rod 4 can be a screw and the lower half can be a cylindrical rod. The base 1 can be provided with a threaded hole or a circular groove. The lower end of the first rod 4 can be threaded or embedded into the threaded hole or circular groove on the base 1. The horizontal part 31 of the pressure plate 3 is provided with a first through hole. The horizontal part 31 of the pressure plate 3 can be a rectangular plate structure. The first through hole is opened at the end of the horizontal part 31 away from the bending part 32. The upper end of the first rod 4 can pass through the first through hole. A gap is left between the first rod 4 and the first through hole on the horizontal part 31 so that the first rod 4 and the pressure plate 3 can be quickly disassembled and assembled.

[0033] Optionally, the base 1 has a second through hole, and a bushing 8 is installed in the second through hole; the horizontal part 31 has a third through hole, and the second rod 5 passes through the bushing 8 and the third through hole in a vertical direction; the lower end of the second rod 5 is provided with a frustum 9, and the frustum 9 is used to abut against the end face of the bushing 8 away from the pressure plate 3.

[0034] In this embodiment, in conjunction with the appendix Figure 1 As shown, a second through hole is provided on the base 1, and a bushing 8 is installed at the second through hole. A third through hole is provided at the middle position of the horizontal part 31. The second rod 5 passes through the bushing 8 and the third through hole in the vertical direction. The bushing 8 plays a guiding role for the second rod 5. A gap is left between the second rod 5 and the third through hole on the horizontal part 31, so that the second rod 5 and the pressure plate 3 can be quickly disassembled and assembled.

[0035] It should be noted that the second member 5 can be a screw, or at least the upper part can be a screw.

[0036] Optionally, both the first rod 4 and the second rod 5 are screws.

[0037] Optionally, the bent portion 32 has a rubber pad on the end face that abuts against the thin-walled member 100.

[0038] In this embodiment, the end face of the bent portion 32 that abuts against the thin-walled component 100 is provided with a rubber pad, wherein the rubber pad can prevent the pressure plate 3 from making hard contact with the thin-walled component 100, thereby protecting the thin-walled component 100.

[0039] Optionally, the clamping assembly further includes an extension plate 10, which is detachably connected to the end face of the bending portion 32 that abuts against the thin-walled member 100. The cross-sectional dimension of the extension plate 10 is larger than the end face of the bending portion 32 that abuts against the thin-walled member 100.

[0040] In this embodiment, in conjunction with the appendix Figure 2 As shown, the extension plate 10 may have threaded holes, and the bending part 32 may also have threaded holes on the end face that abuts against the thin-walled part 100. Thus, the extension plate 10 can be connected to the bending part 32 by a screw. The cross-sectional dimension of the extension plate 10 is larger than the end face of the bending part 32 that abuts against the thin-walled part 100, which can ensure a better clamping effect.

[0041] Optionally, the angle between the horizontal portion 31 and the bent portion 32 is an obtuse angle.

[0042] In this embodiment, in conjunction with the appendix Figure 1 As shown, the angle between the horizontal part 31 and the bent part 32 is an obtuse angle, which can prevent the pressure plate 3 from interfering with the thin-walled part 100.

[0043] Optionally, multiple sets of clamping assemblies are spaced apart on the base 1, and the pressure plate 3 of each set of clamping assemblies is used to jointly abut against the thin-walled member 100.

[0044] The positioning platform 2 is a ring-shaped platform.

[0045] In this embodiment, the thin-walled component 100 can be an annular component, the positioning platform 2 can be designed as an annular platform, the base 1 can be designed as an annular seat, and multiple sets of clamping components are arranged at intervals along the same circumference on the base 1. The pressure plate 3 of each set of clamping components is used to jointly abut against the thin-walled component 100.

[0046] In addition, this utility model also provides a processing system for thin-walled parts, including a cutting device, a rotary mechanism, and a clamping device for thin-walled parts as described above. The rotary mechanism is connected to the base 1 of the clamping device for thin-walled parts and is used to drive the base 1 to rotate. The cutting device is used to cut the blank contour b of the thin-walled part 100.

[0047] In this embodiment, in conjunction with the appendix Figure 1As shown, the base 1 can be driven to rotate around the rotation center d by the rotary mechanism, and the blank outline b of the thin-walled part 100 can be removed by the cutting equipment, thereby exposing the part outline c.

[0048] Since the technical improvements and effects of the processing system for thin-walled parts are the same as those of the clamping device for thin-walled parts, the technical effects of the processing system for thin-walled parts will not be described in detail.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0050] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A clamping device for thin-walled parts, characterized in that, include: The base (1), positioning platform (2), and clamping assembly are provided. The clamping assembly includes a pressure plate (3), a first rod (4), a second rod (5), a first nut (6), and a second nut (7). The first rod (4), the second rod (5), and the positioning platform (2) are arranged sequentially and spaced apart on the base (1). The positioning platform (2) is used to place a thin-walled part (100). The pressure plate (3) includes a horizontal part (31) and a bent part (32) that bends toward the base (1). The first rod (4) and the second rod (5) are away from the base. One end of the seat (1) passes through the horizontal part (31), and the end face of the bent part (32) away from the horizontal part (31) is an inclined surface, which is used to abut against the pressure inclined surface (a) of the thin-walled part (100); the first nut (6) is threaded to the first rod (4), and the first nut (6) is used to abut against the end face of the horizontal part (31) facing the base (1); the second nut (7) is threaded to the second rod (5), and the second nut (7) is used to abut against the end face of the horizontal part (31) away from the base (1).

2. The clamping device for thin-walled parts according to claim 1, characterized in that, The first rod (4) is connected to the base (1) in a vertical direction, and a first through hole is provided on the horizontal part (31), with the upper end of the first rod (4) passing through the first through hole.

3. The clamping device for thin-walled parts according to claim 1, characterized in that, The base (1) has a second through hole, and a bushing (8) is installed in the second through hole; the horizontal part (31) has a third through hole, and the second rod (5) passes through the bushing (8) and the third through hole in the vertical direction; the lower end of the second rod (5) is provided with a frustum (9), and the frustum (9) is used to abut against the end face of the bushing (8) away from the pressure plate (3).

4. The clamping device for thin-walled parts according to claim 1, characterized in that, Both the first rod (4) and the second rod (5) are screws.

5. The clamping device for thin-walled parts according to claim 1, characterized in that, The bent portion (32) has a rubber pad on the end face that abuts against the thin-walled member (100).

6. The clamping device for thin-walled parts according to claim 1, characterized in that, The clamping assembly also includes an extension plate (10), which is detachably connected to the end face of the bending portion (32) for abutting against the thin-walled member (100). The cross-sectional dimension of the extension plate (10) is larger than the end face of the bending portion (32) for abutting against the thin-walled member (100).

7. The clamping device for thin-walled parts according to claim 1, characterized in that, The angle between the horizontal part (31) and the bent part (32) is an obtuse angle.

8. The clamping device for thin-walled parts according to any one of claims 1-7, characterized in that, The clamping assembly is provided in multiple sets at intervals on the base (1), and the pressure plate (3) of each set of the clamping assembly is used to jointly abut against the thin-walled member (100).

9. The clamping device for thin-walled parts according to any one of claims 1-7, characterized in that, The positioning platform (2) is a ring platform.

10. A machining system for thin-walled parts, characterized in that, The device includes a cutting device, a rotating mechanism, and a clamping device for thin-walled parts as described in any one of claims 1-9. The rotating mechanism is connected to the base (1) of the clamping device for thin-walled parts and is used to drive the base (1) to rotate. The cutting device is used to cut the blank outline (b) of the thin-walled part (100).

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