Tube lumen tensioning gripping fixture

Abstract

The present invention discloses a tube inner cavity tensioning and grasping jig, comprising a flange plate, a seamless tube, an end cover, a cylinder, a retaining ring, an inner piston, a tapered tube and an O-ring; the flange plate is connected to the end cover through a seamless tube, the cylinder is fixedly mounted on the right side of the end cover, the left side of the tapered tube is fixedly connected to the left side of the inner wall of the cylinder, the inner piston is inserted into the right side of the inner cavity of the cylinder and sleeved on the left outer wall of the tapered tube, the retaining ring is fixedly mounted on the right side of the cylinder, and an air inlet and an air outlet are respectively provided at the upper and lower ends of the inner wall of the cylinder. The present invention achieves product grasping action by tightening the inner cavity with soft glue, develops a connected cylinder airflow structure, and enables the inner piston to prop up or retract the O-ring, making the sealing ring larger or smaller, so that the sealing ring is tightly matched with the inner cavity of the product after it is enlarged, achieving grasping and movable operation. If the diameter of the O-ring returns to its initial state and loosely matches the size of the inner cavity of the product, the product can be loosened and moved.

Description

Technical Field

[0001] The invention relates to the technical field of grasping jigs, in particular to a tube lumen tensioning grasping jig. Background Art

[0002] During the production process, due to the particularity of the product, the cylinder wall is thin and it is impossible to use steel to clamp and tighten the product. Therefore, a tube inner cavity tensioning and grasping fixture is proposed to solve the above problems. Summary of the Invention

[0003] The object of the present invention is to provide a tube lumen tensioning and grasping jig to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tube inner cavity tensioning and grasping jig, comprising a flange plate, a seamless tube, an end cover, a cylinder, a retaining ring, an inner piston, a conical tube and an O-ring; the flange plate is connected to the end cover through a seamless tube, the cylinder is fixedly mounted on the right side of the end cover, the left side of the conical tube is fixedly connected to the left side of the inner wall of the cylinder, the inner piston is inserted into the right side of the inner cavity of the cylinder and is sleeved on the left outer wall of the conical tube, the retaining ring is fixedly mounted on the right side of the cylinder, and an air inlet and an air outlet are respectively provided at the upper and lower ends of the inner wall of the cylinder, and the O-ring is sleeved on the outer wall of the conical tube.

[0005] Preferably, an air pipe is connected between the flange plate and the end cover.

[0006] Preferably, the inner piston can slide left and right along the outer wall of the tapered tube.

[0007] Preferably, the tapered circular tube is a combination of a cylinder and a frustum.

[0008] Preferably, the O-ring is a soft rubber ring.

[0009] The tube inner cavity tensioning and grasping fixture proposed in the present invention has the following beneficial effects: the present invention achieves the product grasping action by tightening the inner cavity through soft glue, develops a connected cylinder airflow structure, and makes the inner piston support or retract the O-ring, making the sealing ring larger or smaller, so that the sealing ring can be tightly matched with the inner cavity of the product after expansion, achieving grasping and movable operation. If the diameter of the O-ring returns to its initial state and loosely matches the size of the inner cavity of the product, the product can be loosened and moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A perspective view of the present invention;

[0011] Figure 2 is a cross-sectional view of the present invention;

[0012] Figure 3 is a cross-sectional view of the flange plate of the present invention;

[0013] Figure 4 It is a cross-sectional view of the cylinder of the present invention;

[0014] Figure 5 is a cross-sectional view of the retaining ring of the present invention;

[0015] Figure 6 is a cross-sectional view of the inner piston of the present invention;

[0016] Figure 7 It is a cross-sectional view of a tapered circular tube of the present invention.

[0017] In the figure: 1. flange plate, 2. seamless pipe, 3. end cover, 4. cylinder, 5. retaining ring, 6. inner piston, 7. tapered tube, 8. air inlet, 9. air outlet, 10. O-ring. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example

[0020] See also Figure 1-7 The present invention provides a technical solution: a tube inner cavity tensioning and grasping jig, comprising a flange plate 1, a seamless tube 2, an end cover 3, a cylinder 4, a retaining ring 5, an inner piston 6, a tapered tube 7 and an O-ring 10; the flange plate 1 is connected to the end cover 3 through the seamless tube 2, the cylinder 4 is fixedly mounted on the right side of the end cover 3, the left side of the tapered tube 7 is fixedly connected to the left side of the inner wall of the cylinder 4, the inner piston 6 is inserted into the right side of the inner cavity of the cylinder 4 and is sleeved on the left outer wall of the tapered tube 7, the retaining ring 5 is fixedly mounted on the right side of the cylinder 4, the inner wall of the cylinder 4 is respectively provided with an air inlet hole 8 and an air outlet hole 9 at the upper and lower ends, the O-ring 10 is sleeved on the outer wall of the tapered tube 7, an air pipe is connected between the flange plate 1 and the end cover 3, the inner piston 6 can slide left and right along the outer wall of the tapered tube 7, the tapered tube 7 is a combination of a cylinder and a frustum, and the O-ring is a soft rubber ring.

[0021] Working principle: When the present invention is working, the conical tube 7 is extended into the inner cavity of the product, the cylinder 4 starts to work, the air inlet 8 takes in air, and the air flow pushes the inner piston 6 to slide to the right along the outer wall of the conical tube 7, supporting the O-ring 10. The outer wall of the O-ring 10 fits tightly with the inner cavity of the product, achieving a grabbing and movable operation. When the product is loosened, the air outlet 9 is exhausted, the inner piston 6 slides to the left along the outer wall of the conical tube 7, and the diameter of the O-ring 10 returns to its initial state, loosely matching the size of the inner cavity of the product, achieving a loose and movable action of the product.

[0022] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Tube lumen tensioning and grasping fixture, characterized by: It comprises a flange plate (1), a seamless pipe (2), an end cover (3), a cylinder (4), a retaining ring (5), an inner piston (6), a tapered tube (7) and an O-ring (10); The flange plate (1) is connected to the end cover (3) through a seamless pipe (2). An air inlet hole (8) and an air outlet hole (9) are respectively provided at the upper and lower ends of the inner cavity of the cylinder (4). When the cylinder (4) is working, the inner piston (6) and the cylinder (4) generate relative motion. The inner piston (6) slides along the outer wall of the tapered tube (7) to support the O-ring (10). The retaining ring (5) is fixedly installed on the right side of the cylinder (4). The O-ring (10) is sleeved on the outer wall of the tapered tube (7). The inner piston (6) can slide left and right along the outer wall of the tapered tube (7). The tapered tube (7) is a combination of a cylinder and a frustum.

2. The tube lumen tensioning and grasping jig according to claim 1, characterized in that: An air pipe is connected between the flange plate (1) and the end cover (3).

3. The tube lumen tensioning and grasping jig according to claim 1, characterized in that: The O-ring is a soft rubber ring.

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