Rapid clamping tool for thin-walled cylinder part

Abstract

The utility model discloses a rapid clamping tool for a thin-walled cylinder part, which comprises an annular supporting piece, and the inner side surface of the annular supporting piece is attached to the outer side surface of a part; the bottom of the annular supporting piece is provided with a bottom pressing piece which presses downwards, the top of the annular supporting piece is provided with a top pressing piece which presses downwards, and the middle of the annular supporting piece is further provided with a drawing shape correcting piece. The clamping device can be used for clamping quickly, is convenient to adjust, can effectively control the deformation of the thin-wall cylindrical part, realizes high machining efficiency, ensures the dimensional accuracy of the part, and reduces the situation of accumulated deformation caused by repeated machining.

Description

Technical Field

[0001] The utility model relates to a quick clamping tool for thin-walled cylinders, belonging to the technical field of tooling fixtures. Background Art

[0002] The machining of large, conical, thin-walled, cylindrical parts often presents numerous technical challenges. Due to their thin walls and poor overall structural rigidity, these parts are prone to distortion during machining. In particular, during the material removal process, the stress distribution within the part changes, leading to further deformation and significantly increasing machining complexity. This deformation not only affects the dimensional accuracy of the part but can also extend the machining cycle and even require repeated machining, severely impacting production efficiency and product quality.

[0003] Traditional clamping and machining methods often struggle to effectively control the deformation of these thin-walled, cylindrical parts. Conventional clamping methods fail to ensure the flatness of the upper and lower end surfaces, leading to unstable clamping and further exacerbating deformation during machining. Furthermore, the lack of effective alignment and support methods makes parts prone to multiple deformations during machining due to material removal, making it difficult to ensure machining accuracy and consistency. Utility Model Content

[0004] The purpose of this utility model is to provide a quick clamping tool for thin-walled cylindrical parts in response to the above-mentioned problems, which can quickly clamp, easily adjust and effectively control the deformation of thin-walled cylindrical parts, achieve high processing efficiency, ensure the dimensional accuracy of parts, and reduce the cumulative deformation caused by repeated processing.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A quick clamping tool for thin-walled cylindrical parts includes an annular support part, the inner side of the annular support part is in contact with the outer side of the part; the bottom of the annular support part is provided with a bottom clamping part, the top of the annular support part is provided with a top clamping part for pressing downward, and the middle part of the annular support part is also provided with a radially arranged drawing and shaping part.

[0007] Optionally, the bottom pressing member, the top pressing member and the drawing and shaping member each include a plurality of members distributed at intervals along the circumferential direction.

[0008] Optionally, a gasket is provided on the inner side of the bottom of the annular support member, and the bottom pressing member includes a first pressing plate provided on the gasket, and the first pressing plate is connected to the gasket via a first bolt.

[0009] Optionally, a pressing groove for placing parts is provided at the radially outer bottom of the first pressing plate, and a protrusion is provided at the radially inner bottom of the first pressing plate.

[0010] Optionally, the top pressing member includes a second pressing plate arranged on the top of the annular support member, and the second pressing plate is connected to the annular support member through a second bolt; a pad is also provided below the radial outer side of the second pressing plate.

[0011] Optionally, the pull-out shaping member includes a shaping bolt, the front end of which passes radially inward through the annular support member, and the rear end of the shaping bolt is provided with a locking nut, which is located radially outside the annular support member, and a gasket is provided between the locking nut and the annular support member.

[0012] Optionally, a positioning pin corresponding to the part window is further provided on the inner side of the middle portion of the annular support.

[0013] Optionally, the annular support member is conical.

[0014] Optionally, the annular support member is a grid structure, and the annular support member includes a plurality of annular cross beams, and the plurality of annular cross beams are connected by longitudinal beams, and the longitudinal beams include a plurality of beams distributed at intervals along the annular direction.

[0015] Optionally, a detachable hanging ring is further connected to the bottom of the annular support.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The utility model provides a quick clamping tool for thin-walled cylindrical parts. Through the coordinated design of an annular support part, a bottom clamping part, a top clamping part and a drawing and shaping part, it significantly improves the clamping stability, deformation control accuracy and operation convenience during the processing of thin-walled cylindrical parts.

[0018] 2. The utility model provides a quick clamping fixture for thin-walled cylindrical parts. The annular support member adopts a conical or grid structure, which can closely fit the part shape, provide uniform support force, and reduce deformation caused by local stress concentration. The bottom and top clamping members ensure precise clamping of the upper and lower end faces of the part through the design of pressure plates, bolts, and washers, preventing displacement or warping during processing. The drawing and shaping member achieves precise control and shaping of the part through the cooperation of shaping bolts and locking nuts, ensuring processing accuracy. In addition, the provision of locating pins further enhances the positioning accuracy of the part and prevents clamping deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 yes Figure 1 Enlarged view of point A.

[0021] Figure 3 yes Figure 1 Enlarged view of point B.

[0022] Figure 4 yes Figure 1 Enlarged view of point C.

[0023] Figure 5 It is a schematic diagram of clamping of the present utility model.

[0024] Markings in the figure: 1-annular support, 11-gasket, 12-annular crossbeam, 13-longitudinal beam, 2-bottom clamping member, 21-first pressure plate, 211-pressing groove, 22-first bolt, 3-top clamping member, 31-second pressure plate, 32-second bolt, 33-pad, 4-pull-out shape correction member, 41-shape correction bolt, 42-locking nut, 43-washer, 5-locating pin, 6-lifting ring. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] A quick clamping tool for thin-walled cylinders, such as Figure 1-5 As shown, it includes an annular support member 1, the inner side of which fits the outer side of the part to ensure that the part is evenly supported during the clamping process and reduce deformation caused by local stress concentration; the bottom clamping member 2 of the annular support member 1 is used to fix the lower end face of the part to prevent it from displacement or warping during processing; the top of the annular support member 1 is provided with a top clamping member 3 that presses downward to further ensure the flatness and stability of the upper end face of the part, avoid processing errors caused by loose clamping, and further prevent part displacement; the middle part of the annular support member 1 is also provided with a radially arranged drawing and shaping member 4. By adjusting the drawing and shaping member 4, the part can be shaped to correct deformation caused by material removal during processing, while providing radial support, reducing processing vibration, and ensuring processing accuracy and stability. The overall structural design is reasonable, taking into account the convenience of clamping, the effectiveness of deformation control, and the stability of the processing process, and is suitable for efficient and precise processing of thin-walled cylindrical parts.

[0028] As another specific embodiment, the bottom pressure member 2, top pressure member 3, and drawing and shaping member 4 each comprise multiple members spaced apart along the circumference. This multi-point support and compression design applies uniform pressure, effectively dissipating vibrations during processing, reducing machining errors, and improving processing efficiency and product quality. The drawing and shaping members 4 are evenly distributed along the circumference, enabling multi-point shaping and support of the part's outer surface. By adjusting the force of each drawing and shaping member 4, precise control of part deformation is achieved.

[0029] As another specific embodiment, a gasket 11 is provided on the inner side of the bottom of the annular support member 1, and the bottom clamping member 2 includes a first pressure plate 21 provided on the gasket 11, and the first pressure plate is connected to the gasket 11 by a first bolt 22. The bottom of the part has an inward bend, which is located between the first pressure plate 21 and the gasket 11. The provision of the gasket 11 can provide a stable support base for the bottom clamping member 2, ensuring that the clamping force is evenly transmitted to the lower end face of the part, avoiding deformation or damage caused by local stress concentration. The first pressure plate 21 is connected to the gasket 11 by a first bolt 22, making the adjustment of the clamping force more flexible and precise.

[0030] As another specific embodiment, the radially outer bottom of the first pressure plate 21 is provided with a pressing groove 211 for placing parts, and the radially inner bottom of the first pressure plate is provided with a protrusion. Specifically, the radially outer thickness of the first pressure plate 21 is smaller than the radially inner thickness, and the annular and radially outer sides of the pressing groove 211 are continuous. It can provide a precise positioning and support area for the parts, ensuring that the parts are tightly fitted with the pressure plate during the clamping process, avoiding processing errors caused by unstable clamping, and the pressing groove 211 reserves space for the thickness of the parts, effectively preventing the pressure plate from tilting during the clamping process, ensuring that the clamping force is evenly distributed on the lower end surface of the part, and the protrusion is raised to ensure stable contact between the pressing groove 211 and the part. Furthermore, an annular groove is also provided on the inner side of the upper surface of the gasket 11. By fitting the side of the annular groove with the side of the pressing groove 211, the first pressure plate 21 can also be rotated and positioned.

[0031] As another specific embodiment, the top clamping member 3 includes a second pressure plate 31 arranged on the top of the annular support member 1, and the second pressure plate 31 is connected to the annular support member 1 through a second bolt 32; a pad 33 is also provided below the radial outer side of the second pressure plate 31. The second pressure plate 31 is connected to the annular support member 1 through the second bolt 32, so that the clamping force adjustment of the top clamping member 3 is more flexible and precise. The parts are pressed below the radial inner side of the second pressure plate 31, and the setting of the pad 33 can raise the side opposite to the part of the second pressure plate 31, effectively preventing the second pressure plate 31 from tilting during the clamping process, ensuring uniform distribution of the clamping force and stability and reliability of the top clamping. Furthermore, the second bolt 32 is provided on the second pressure plate 31 through a strip groove, which can realize position adjustment.

[0032] As another specific embodiment, the drawing and shaping part 4 includes a shaping bolt 41, the front end of the shaping bolt 41 passes through the annular support 1 radially inward, and the rear end of the shaping bolt 41 is provided with a locking nut 42, and the locking nut 42 is located radially outside the annular support 1, and a gasket 43 is provided between the locking nut 42 and the annular support 1. The shaping bolt 41 passes through the annular support 1 radially inward, and can directly apply a radial pulling force to the outer side of the part. By adjusting the tightness of the shaping bolt 41, it is possible to achieve precise control and shaping of the part deformation, especially deformation caused by material removal during the processing process, which can be corrected in time to ensure the dimensional accuracy and shape stability of the part. The provision of the locking nut 42 makes the adjustment and fixation of the shaping bolt 41 more convenient, and can prevent it from loosening during the processing. The provision of the gasket 43 can effectively disperse the contact stress between the locking nut 42 and the annular support 1.

[0033] As another specific embodiment, a locating pin 5 corresponding to the part window is further provided on the inner side of the middle portion of the annular support 1. Firstly, the locating pin 5 can precisely match the window on the part, ensuring accurate positioning of the part during the clamping process and avoiding processing errors caused by clamping deviations.

[0034] As another specific embodiment, the annular support member 1 is conical. The conical structure matches the shape of the conical thin-walled cylindrical part, can better fit the outer surface of the part, provide uniform support force, reduce deformation or damage caused by local stress concentration, and the conical structure can naturally guide the part's positioning during the clamping process.

[0035] As another specific embodiment, the annular support member 1 is a grid structure, and the annular support member 1 includes a plurality of annular cross beams 12, and the plurality of annular cross beams 12 are connected by longitudinal beams 13, and the longitudinal beams 13 include a plurality of beams distributed at intervals along the circumferential direction. The design of the grid structure enables the annular support member 1 to have high rigidity and lightweight characteristics, and can reduce the weight of the tooling itself while providing sufficient supporting force, making it easy to operate and carry. The combination of multiple annular cross beams 12 and longitudinal beams 13 forms a stable grid structure, which can evenly distribute the supporting force, avoid local stress concentration, and effectively reduce the deformation of parts during the processing process. The longitudinal beams 13 distributed at intervals along the circumferential direction can further enhance the overall stability of the annular support member 1.

[0036] As another specific embodiment, the bottom of the annular support member 1 is further connected to a detachable lifting ring 6. The provision of the lifting ring 6 facilitates the lifting and transportation of the tooling. The detachable connection mode allows the lifting ring 6 to be flexibly installed or removed according to actual needs, which not only facilitates the use of the tooling, but also avoids interference with the tooling operation when the lifting ring 6 is not required.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention extends to any new features or any new combinations disclosed in this specification, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the detailed technical features not disclosed in this embodiment, such as the specific structure, are all prior art, and those skilled in the art can obtain them from the prior art; the connection method can be a fixed connection, a detachable connection, or an integrated connection; it can be a fixed connection, a movable connection, or a hinged connection, and can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific manner in which the above terms are used in the embodiments of the present invention can be understood according to the specific circumstances, and the embodiments disclosed herein do not make specific limitations on this.

Claims

1. A quick clamping tool for thin-walled cylindrical parts, characterized by: The invention comprises an annular support member (1), the inner side surface of the annular support member (1) is fitted with the outer side surface of the part; the bottom of the annular support member (1) is provided with a bottom pressing member (2) for pressing downwards, the top of the annular support member (1) is provided with a top pressing member (3) for pressing downwards, and the middle of the annular support member (1) is also provided with a drawing and shaping member (4).

2. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: The bottom pressing member (2), the top pressing member (3) and the drawing and shaping member (4) all include a plurality of members distributed at intervals along the circumferential direction.

3. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: A gasket (11) is provided on the inner side of the bottom of the annular support member (1), and the bottom pressing member (2) includes a first pressing plate (21) provided on the gasket (11), and the first pressing plate (21) is connected to the gasket (11) via a first bolt (22).

4. The quick clamping fixture for thin-walled cylindrical parts according to claim 3, characterized in that: A pressing groove (211) for placing parts is provided at the radially outer bottom of the first pressing plate (21), and a protrusion is provided at the radially inner bottom of the first pressing plate (21).

5. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: The top pressing member (3) comprises a second pressing plate (31) arranged on the top of the annular support member (1), and the second pressing plate (31) is connected to the annular support member (1) via a second bolt (32); a pad (33) is also provided below the radial outer side of the second pressing plate (31).

6. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: The drawing and shaping member (4) includes a shaping bolt (41), the front end of which passes through the annular support member (1) radially inward, and the rear end of which is provided with a locking nut (42), the locking nut (42) being located radially outside the annular support member (1), and a gasket (43) being provided between the locking nut (42) and the annular support member (1).

7. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: A positioning pin (5) corresponding to the part window is also provided on the inner side of the middle portion of the annular support member (1).

8. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: The annular support member (1) is conical.

9. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: The annular support member (1) is a grid structure, comprising a plurality of annular cross beams (12), the plurality of annular cross beams (12) being connected by longitudinal beams (13), and the longitudinal beams (13) comprising a plurality of beams distributed at intervals along the annular direction.

10. The quick clamping fixture for thin-walled cylindrical parts according to claim 1, characterized in that: The bottom of the annular support member (1) is also connected to a detachable hanging ring (6).

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