Pneumatic clamp for aviation sheet metal forming

Abstract

The utility model relates to the field of sheet metal clamps, in particular to an aviation sheet metal forming pneumatic clamp. According to the technical scheme, the clamp comprises a clamp support, a clamping air cylinder and a fixing clamping plate, a main body of the fixing clamping plate is of a rectangular pipe body structure, the fixing clamping plate is fixed to one side of the upper portion of the clamp support, and the clamping air cylinder is arranged on the portion, at the same height as the fixing clamping plate, of the clamp support. The distance between the movable clamping plate and the fixed clamping plate is adjustable during clamping of the movable clamping plate, the opposite sides of the movable clamping plate and the fixed clamping plate are both made of soft rubber materials, adjustment is conducted according to the requirements of different clamped sheet metal parts, and the movable clamping plate and the fixed clamping plate are generally used for fastening and safety of clamping. When the movable clamping plate is used for clamping, the distance between the movable clamping plate and the fixed clamping plate is about 1-2 mm smaller than the width of the clamping position of the sheet metal part, and the specific width can be adjusted according to the needed clamping force and the strength of the sheet metal part.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal fixtures, and in particular to a pneumatic fixture for forming aerospace sheet metal. Background Technology

[0002] In aerospace sheet metal processing, due to the small batch size and different dimensions of the sheet metal parts, it is impossible to completely replace the processing with mechanical equipment. Therefore, fixtures are used to assist workers in processing. However, since the same clamping equipment needs to process parts of different sizes and thicknesses, and because too much force cannot be applied during clamping to avoid damaging the parts, and the clamping position of the pneumatic cylinder is difficult to control precisely, we designed an aerospace sheet metal forming pneumatic fixture that can quickly control the clamping thickness. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a pneumatic clamp for aerospace sheet metal forming.

[0004] To achieve the purpose of this utility model, the technical solution adopted is as follows: a pneumatic clamp for aerospace sheet metal forming, including a clamp bracket, a clamping cylinder, and a fixed clamping plate. The main body of the fixed clamping plate is a rectangular tubular structure, which is fixed to one side of the clamp bracket. A clamping cylinder is installed on the clamp bracket at the same height on one side of the fixed clamping plate. The pneumatic rod of the clamping cylinder is connected to a movable clamping plate. A pneumatic rod extension distance adjustment rod is provided on one side of the movable clamping plate. A limiting block is provided on one side of the clamping cylinder. A through hole is provided at the position corresponding to the pneumatic rod extension distance adjustment rod. One end of the pneumatic rod extension distance adjustment rod is fixedly connected to the movable clamping plate, and the other end can extend and retract through the through hole. A thread is provided on the side of the pneumatic rod extension distance adjustment rod passing through the through hole. A matching nut is provided at the end of the pneumatic rod extension distance adjustment rod passing through the through hole. The diameter of the nut is larger than that of the through hole. The nut is adjusted to control the extension distance of the cylinder according to the width of the sheet metal part to be clamped.

[0005] The clamping cylinder and its matching movable clamping plate are symmetrically arranged in two sets.

[0006] The clamping cylinder is mounted on the horizontal column of the clamping bracket, and a horizontal longitudinal column is provided between the two horizontal columns. The limiting iron blocks corresponding to the two clamping cylinders are fixedly mounted on the horizontal longitudinal column.

[0007] Both the fixed clamp and the movable clamp are provided with rough rubber pads on their opposing sides.

[0008] A sheet metal frame is provided above the clamping cylinder, and the supporting feet of the sheet metal frame are provided on the clamp bracket.

[0009] The fixed clamping plate is symmetrically provided with two fixed welding ribs on the side away from the clamping cylinder, and the bottom of the fixed welding ribs is welded to the clamping bracket.

[0010] The beneficial effects of this utility model are as follows:

[0011] The distance between the movable clamping plate and the fixed clamping plate of this device is adjustable when clamping. Both the movable and fixed clamping plates are made of soft rubber material and can be adjusted according to the needs of different sheet metal parts. Generally, for the sake of clamping tightness and safety, the distance between the movable clamping plate and the fixed clamping plate is about 1-2mm less than the width of the clamping part of the sheet metal part. The specific width can be adjusted according to the required clamping force and the strength of the sheet metal part. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] See Figure 1 .

[0016] This utility model discloses a pneumatic clamp for aerospace sheet metal forming, including a clamping bracket 1, a clamping cylinder 2, and a fixed clamping plate 3. The fixed clamping plate 3 has a rectangular tubular structure and is fixed to one side of the clamping bracket. A clamping cylinder is mounted on the clamping bracket at the same height on one side of the fixed clamping plate. The pneumatic rod of the clamping cylinder is connected to a movable clamping plate 4. A pneumatic rod extension distance adjustment rod 5 is provided on one side of the movable clamping plate. A limiting block 6 is provided on one side of the clamping cylinder. A through hole is provided at the position corresponding to the pneumatic rod extension distance adjustment rod. One end of the pneumatic rod extension distance adjustment rod is fixedly connected to the movable clamping plate, and the other end can extend and retract through the through hole. A thread is provided on the side of the pneumatic rod extension distance adjustment rod that passes through the through hole. A matching nut 7 is provided at the end of the pneumatic rod extension distance adjustment rod that passes through the through hole. The diameter of the nut is larger than that of the through hole. The extension distance of the cylinder is controlled by adjusting the nut according to the width of the sheet metal part to be clamped.

[0017] The clamping cylinder and its matching movable clamping plate are symmetrically arranged in two sets.

[0018] The clamping cylinder is mounted on the horizontal cross column 8 of the clamping bracket, and a horizontal longitudinal column 9 is provided between the two horizontal cross columns. The limiting iron blocks corresponding to the two clamping cylinders are fixedly mounted on the horizontal longitudinal column.

[0019] Both the fixed clamp and the movable clamp are provided with rough rubber pads on their opposing sides.

[0020] A sheet metal frame 10 is provided above the clamping cylinder, and the supporting feet 11 around the sheet metal frame are provided on the clamp bracket.

[0021] Two fixed welding ribs 12 are symmetrically arranged on the side of the fixed clamping plate away from the clamping cylinder, and the bottom of the fixed welding ribs is welded to the clamping bracket.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pneumatic clamp for forming aerospace sheet metal, characterized in that: The fixture includes a clamping bracket (1), a clamping cylinder (2), and a fixed clamping plate (3). The fixed clamping plate (3) has a rectangular tubular structure and is fixed on one side above the clamping bracket. A clamping cylinder is installed on the clamping bracket at the same height on one side of the fixed clamping plate. The pneumatic rod of the clamping cylinder is connected to a movable clamping plate (4). A pneumatic rod telescopic distance adjustment rod (5) is installed on one side of the movable clamping plate. A limiting iron block (6) is installed on one side of the clamping cylinder. A through hole is provided at the position corresponding to the pneumatic rod telescopic distance adjustment rod. One end of the pneumatic rod telescopic distance adjustment rod is fixedly connected to the movable clamping plate, and the other end can telescopically pass through the through hole. A thread is provided on the side of the pneumatic rod telescopic distance adjustment rod that passes through the through hole. A matching nut (7) is provided on the end of the pneumatic rod telescopic distance adjustment rod that passes through the through hole. The diameter of the nut is larger than that of the through hole.

2. The pneumatic clamp for aerospace sheet metal forming according to claim 1, characterized in that: The clamping cylinder and its matching movable clamping plate are symmetrically arranged in two sets.

3. The pneumatic clamp for aerospace sheet metal forming according to claim 2, characterized in that: The clamping cylinder is mounted on the horizontal column (8) of the clamping bracket, and a horizontal column (9) is provided between the two horizontal columns. The limiting iron blocks corresponding to the two clamping cylinders are fixedly mounted on the horizontal column.

4. The aerospace sheet metal forming pneumatic fixture according to claim 1, characterized in that: Both the fixed clamp and the movable clamp are provided with rough rubber pads on their opposing sides.

5. The pneumatic clamp for aerospace sheet metal forming according to claim 1, characterized in that: A sheet metal frame (10) is provided above the clamping cylinder, and the supporting feet (11) around the sheet metal frame are provided on the clamping bracket.

6. The pneumatic clamp for aerospace sheet metal forming according to claim 1, characterized in that: The fixed clamping plate is symmetrically provided with two fixed welding ribs (12) on the side away from the clamping cylinder, and the bottom of the fixed welding ribs is welded to the clamping bracket.

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