Clamping device for machining the inner and outer surfaces of thin-walled annular parts by cutting

Description

2

[0005] To solve the aforementioned technical problems, the present invention proposes a clamping device for machining the internal and external surfaces of thin-walled annular parts.

[0006] The present invention is implemented by the following technical solutions.

[0007] The present invention provides a clamping device for machining the internal and external surfaces of thin-walled annular workpieces by cutting, comprising a base plate, a support plate, and a clamping block. The lower end face of the support plate is fixed to the base plate, the upper end face of the support plate is configured as a first form surface, the lower end face of the clamping block is configured as a second form surface, the upper end face of the clamping block is provided with a pressure guide groove, the support plate is fixed to the clamping block, and the workpiece is clamped between the first and second form surfaces. The pressure guide groove is in the shape of an inverted cone, half- inverted regular sphere or pyramid.

[0008] The support plate and the clamping block are fixed together by means of at least one pair of cylindrical pins, this pair of cylindrical pins being arranged on either side of the 15-strain guide groove.

[0009] A vibration-damping rubber pad is also glued onto the second shaped surface, the vibration-damping rubber pad being inserted between the part and the second shaped surface.

[0010] The clamping device for machining the internal and external surfaces of thin-walled annular parts also includes a clamping plate, a support rod, a support rod, and a vacuum rod. The surface of the clamping plate is provided with a limiting hole. The surface of the base plate is provided with at least one pair of positioning holes. This pair of positioning holes is located on the internal and external sides of the support plate. One end of the support rod is screwed into the positioning hole. The other end of the support rod is also screwed into a locking nut. The support rod also passes through the limiting hole. One end of the clamping plate is screwed to one end of the support rod. resting on the base plate, the other end of the clamping plate being fixed to one end of the pressure rod, the other end of the pressure rod resting in the pressure guide groove.

[0011] The support rod also passes through a washer, the washer being inserted between the clamping plate and the locking nut.

[0012] The limiting hole is an oblong through hole.

[0013] The surface of the base plate is also provided with a positioning shoulder, the support rod penetrating the positioning shoulder.

[0014] The support plate has a torus shape.

[0015] The base plate has a torus shape.

[0016] The beneficial effect of the present invention lies in the fact that: by adopting the technical solution of the present invention, clamping the part between the first form surface and the second form surface, the rigidity of the part is increased, allowing the part to maintain a stable positioning position during the machining process by cutting, which lays the basis for improving the machining accuracy of cutting.Furthermore, by providing a pressure guide groove on the surface of the clamping block, when the clamping force is applied through the pressure guide groove, the clamping force can be distributed uniformly over the surface of the clamping block, so that all parts of the workpiece bear a uniform clamping force, further enabling the workpiece to maintain a stable position during the machining process. 10 Drawing Description

[0017] Figure 1 is a front view of the present invention; Figure 2 is a front view of the support plate of the present invention; 15 Figure 3 is a front view of the clamping block of the present invention.

[0018] Reference signs: 1–base plate, 2–support plate, 3–clamping block, 4–first form surface, 5–second form surface, 6–pressure guide groove, 7–cylindrical pin, 8–vibration damping rubber pad, 9–clamping plate, 10–support rod, 11–support rod, 12–pressure rod, 13–limiting hole, 14–positioning hole, 15–lock nut, 20–16–washer, 17–positioning shoulder.Detailed description of embodiments

[0019] The technical solution of the present invention is described in more detail below, but the scope of the protection claimed is not limited to what is described.

[0020] As illustrated in Figures 1 to 3, the present invention provides a clamping device for machining the internal and external surfaces of thin-walled annular parts by cutting, comprising a base plate 1, a support plate 2 and a clamping block 3, the lower end face of the support plate 2 being fixed to the base plate 1, the upper end face of the support plate 2 being configured as a first form surface 4, the lower end face of the clamping block 3 being co.

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