Fixture for finish machining of thin-walled parts

Abstract

The utility model discloses a thin-wall part finish machining clamp which comprises a bottom plate, and a positioning assembly, a top pressing assembly, a limiting assembly, a side pressing assembly and a supporting assembly are arranged on the bottom plate. The positioning assemblies are arranged along the periphery of the thin-wall part, and the jacking assemblies are arranged on the outer sides of the positioning assemblies. The positioning assembly and the jacking assembly clamp and fix the upper surface and the lower surface of the outer edge of the thin-wall part in the first direction. The limiting assembly is arranged along one side of the peripheral ring of the thin-wall part, the side pressing assembly is arranged along the other side of the peripheral ring of the thin-wall part, and the limiting assembly and the side pressing assembly clamp and fix the outer edge of the thin-wall part in the second direction; the supporting assembly is arranged below the thin-wall part, the top of the supporting assembly makes contact with the lower surface of the thin-wall part, the thin-wall part is supported in the first direction, time and labor are saved when the thin-wall part is clamped and fixed, meanwhile, the back face of the thin-wall part is supported, and deformation of the thin-wall part can be prevented during finish machining.

Description

Technical Field

[0001] The utility model relates to the field of accessories for fine machining of thin-walled parts, in particular to a clamp for fine machining of thin-walled parts. Background Art

[0002] Among mechanical parts, thin-walled parts are important accessories. The characteristics of thin-walled parts are thin walls, such as Figure 1 The thin-walled parts shown are 10 mm at their thinnest point. A clamp is required for machining thin-walled parts (drilling, milling, etc.). Currently, there are some clamps on the market, such as the clamp for thin-walled parts disclosed in Chinese patent CN115609308A. This patent can be used to clamp thin-walled parts. However, this patent also has certain defects: for example, the fasteners and locking parts are screws and nuts, which require manual operation, which is time-consuming and labor-intensive. Utility Model Content

[0003] The utility model aims to provide a clamp for fine machining of thin-walled parts.

[0004] The innovation of the utility model is that the clamping and fixing of thin-walled parts by the application saves time and effort, and at the same time supports the back of the thin-walled parts, which can prevent the thin-walled parts from being deformed during fine processing.

[0005] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is:

[0006] A fixture for finishing thin-walled parts, comprising a base plate, on which a positioning assembly, a top-pressing assembly, a limiting assembly, a side-pressing assembly and a supporting assembly are arranged; the positioning assembly is arranged along the outer circumference of the thin-walled part, the top-pressing assembly is arranged on the outside of the positioning assembly, the positioning assembly comprises a positioning seat and a positioning column arranged on the top of the positioning seat; the top-pressing assembly comprises a top-pressing seat and a lever-type hydraulic cylinder arranged on the top-pressing seat, the free end of the pressure plate of the lever-type hydraulic cylinder is located above the positioning column; the positioning assembly and the top-pressing assembly clamp and fix the upper and lower surfaces of the outer edge of the thin-walled part in a first direction; the limiting assembly is arranged along the outer circumference of the thin-walled part The side pressure assembly is arranged on one side of the circumference, and the side pressure assembly is arranged along the other side of the outer circumference of the thin-walled part. The limiting assembly includes a limiting seat and a limiting column arranged on the side wall of the limiting seat, and the free end of the limiting column clamps the outer edge of one side of the thin-walled part. The side pressure assembly includes a side pressure seat and a telescopic hydraulic cylinder arranged on the top of the side pressure seat, and the telescopic column of the telescopic hydraulic cylinder clamps the outer edge of the other side of the thin-walled part. The limiting assembly and the side pressure assembly clamp and fix the outer edge of the thin-walled part in the second direction; the support assembly is arranged below the thin-walled part, and the top of the support assembly contacts the lower surface of the thin-walled part to form support for the thin-walled part in the first direction.

[0007] Furthermore, at least two positioning components are provided, and the number of the pressing components is the same as that of the positioning components.

[0008] Furthermore, at least three limit assemblies are provided, and at least three side pressure assemblies are provided.

[0009] Furthermore, the support assembly is a hydraulic floating support cylinder; at least two support assemblies are provided.

[0010] Furthermore, the first direction is perpendicular to the second direction.

[0011] Furthermore, hanging ears are provided at the four corners of the front side of the base plate.

[0012] The beneficial effects of the utility model are:

[0013] First: Use lever-type hydraulic cylinders and telescopic hydraulic cylinders in conjunction with positioning components and limit components to form fixed clamping for thin-walled parts in the first and second directions, saving time and effort;

[0014] Second: Use support components to support thin-walled parts to prevent deformation of thin-walled parts during finishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the thin-walled part structure.

[0016] Figure 2 It is a top view of the utility model.

[0017] Figure 3 This is a schematic diagram of the assembly of the utility model and thin-walled parts.

[0018] In the figure: 10 is a thin-walled part, 11 is a process flange, 20 is a base plate, 30 is a positioning assembly, 31 is a positioning seat, 32 is a positioning column, 40 is a top pressure assembly, 41 is a top pressure seat, 42 is a lever-type hydraulic cylinder, 42.1 is a pressure plate, 50 is a limit assembly, 51 is a limit seat, 52 is a limit column, 60 is a side pressure assembly, 61 is a side pressure seat, 62 is a telescopic hydraulic cylinder, 62.1 is a telescopic column, 70 is a support assembly, and 80 is a switch. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0020] A fixture for finishing thin-walled parts, comprising a base plate 20, on which a positioning assembly 30, a pressing assembly 40, a limiting assembly 50, a side pressure assembly 60 and a supporting assembly 70 are arranged; the positioning assembly 30 is arranged along the outer circumference of the thin-walled part 10, the pressing assembly 40 is arranged on the outside of the positioning assembly 30, the positioning assembly 30 comprises a positioning seat 31 and a positioning column 32 arranged on the top of the positioning seat 31; the pressing assembly 40 comprises a pressing seat 41 and a lever-type hydraulic cylinder 42 arranged on the pressing seat 41, the free end of the pressure plate 42.1 of the lever-type hydraulic cylinder 42 is located above the positioning column 32; the positioning assembly 30 and the pressing assembly 40 clamp and fix the upper and lower surfaces of the outer edge of the thin-walled part 10 in a first direction; the limiting assembly 50 is arranged along the outer circumference of the thin-walled part The side pressure assembly 60 is arranged on one side of the outer circumference of the thin-walled part 10, and the side pressure assembly 60 is arranged along the other side of the outer circumference of the thin-walled part 10. The limiting assembly 50 includes a limiting seat 51 and a limiting column 52 arranged on the side wall of the limiting seat 51. The free end of the limiting column 52 clamps the outer edge of one side of the thin-walled part 10. The side pressure assembly 60 includes a side pressure seat 61 and a telescopic hydraulic cylinder 62 arranged on the top of the side pressure seat 61. The telescopic column 62.1 of the telescopic hydraulic cylinder 62 clamps the outer edge of the other side of the thin-walled part 10. The limiting assembly 50 and the side pressure assembly 60 clamp and fix the outer edge of the thin-walled part 10 in the second direction; the support assembly 70 is arranged below the thin-walled part 10, and the top of the support assembly 70 contacts the lower surface of the thin-walled part 10 to form support for the thin-walled part 10 in the first direction.

[0021] Furthermore, at least two positioning components 30 are provided, and the number of the pressing components 40 is the same as that of the positioning components.

[0022] Furthermore, the outer edge of the thin-walled part 10 is processed with a process convex edge 11. The number of the process convex edges 11 can be determined according to the size of the thin-walled part 10. The preliminary positioning can be completed by aligning the process convex edge 11 with the position of the positioning column 31 on the positioning component 30.

[0023] Furthermore, at least three limit assemblies are provided, and at least three side pressure assemblies are provided.

[0024] Furthermore, when fixing, first press the outer edge of one side of the thin-walled part 10 against the limit column 51 of the limit assembly 50, then turn on the switch 80, supply oil to the telescopic hydraulic cylinder 62 of the side pressure assembly 60, and the telescopic column 62.1 extends to press against the outer edge of the other side of the thin-walled part 10 to complete the fixation in the second direction.

[0025] Furthermore, the support assembly is a hydraulic floating support cylinder; at least two support assemblies are provided; the hydraulic floating support cylinder is an existing technology and can be purchased directly from the market. The number of support assemblies arranged can be determined according to the size of the thin-walled part 10, and the arrangement position can be determined according to the structure of the thin-walled part 10 and the part that needs to be finely processed, such as Figure 3 As shown, a large number of support components 70 are provided at the left through hole of the thin-walled part 10 . During machining, the support components 70 can prevent the left through hole from deforming.

[0026] Furthermore, the first direction is perpendicular to the second direction.

[0027] Further, the first direction may be a vertical direction, and the second direction may be a horizontal direction.

[0028] Furthermore, hanging ears 21 are provided at the four corners of the front side of the bottom plate.

[0029] The embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A fixture for finishing thin-walled parts, comprising a base plate, characterized in that: The bottom plate is provided with a positioning assembly, a top-pressing assembly, a limiting assembly, a side-pressing assembly and a supporting assembly; the positioning assembly is arranged along the outer circumference of the thin-walled part, the top-pressing assembly is arranged on the outside of the positioning assembly, and the positioning assembly includes a positioning seat and a positioning column arranged on the top of the positioning seat; the top-pressing assembly includes a top-pressing seat and a lever-type hydraulic cylinder arranged on the top-pressing seat, and the free end of the pressure plate of the lever-type hydraulic cylinder is located above the positioning column; the positioning assembly and the top-pressing assembly clamp and fix the upper and lower surfaces of the outer edge of the thin-walled part in the first direction; the limiting assembly is arranged along one side of the outer circumference of the thin-walled part, The side pressure assembly is arranged along the other side of the outer circumference of the thin-walled part, and the limiting assembly includes a limiting seat and a limiting column arranged on the side wall of the limiting seat, and the free end of the limiting column clamps the outer edge of one side of the thin-walled part. The side pressure assembly includes a side pressure seat and a telescopic hydraulic cylinder arranged on the top of the side pressure seat, and the telescopic column of the telescopic hydraulic cylinder clamps the outer edge of the other side of the thin-walled part. The limiting assembly and the side pressure assembly clamp and fix the outer edge of the thin-walled part in the second direction; the support assembly is arranged below the thin-walled part, and the top of the support assembly contacts the lower surface of the thin-walled part to form support for the thin-walled part in the first direction.

2. A fixture for finishing thin-walled parts according to claim 1, characterized in that: At least two positioning components are provided, and the number of the pressing components is the same as that of the positioning components.

3. A fixture for finishing thin-walled parts according to claim 1, characterized in that: At least three of the limit assemblies are provided, and at least three of the side pressure assemblies are provided.

4. A fixture for finishing thin-walled parts according to claim 1, characterized in that: The support assembly is a hydraulic floating support cylinder; at least two support assemblies are provided.

5. The fixture for finishing thin-walled parts according to claim 1, characterized in that: The first direction is perpendicular to the second direction.

6. The fixture for finishing thin-walled parts according to claim 1, characterized in that: Hanging ears are also provided at the four corners of the front side of the bottom plate.

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