CN111473109A - A multi-channel plugging group using the internal expansion plugging method - Google Patents

Abstract

The invention discloses a multi-channel plugging group adopting an internal expansion plugging method, comprising a base and a main body of a workpiece, and the main body of the workpiece is fixedly installed on the base by a clamp. The multi-channel plugging group using the internal expansion plugging method is set to operate the first cylinder, and at the same time, the third cylinder also acts to withdraw the third sealing ring and the first sealing ring into the cavity, and the second cylinder acts to move the second sealing ring. The sealing ring is plugged at the required sealing position. When in use, the sealing ring is movably sleeved on the air pressure rods in the three pneumatic cylinders. Under the action of thrust, the outer surface of the sealing ring is extruded and bonded with the inner wall of the workpiece to a certain extent. At this time, when the air pressure rod of the cylinder is withdrawn, the sealing ring will not be taken out, so that the multi-channel plugging using the internal expansion plugging method is adopted. The group has the effect of simultaneously using internal expansion to achieve the plugging effect of different end faces at the same position.

Description

A multi-channel plugging group using the internal expansion plugging method

technical field

The invention relates to a multi-channel plugging group adopting an internal expansion plugging method, in particular to the technical field of plugging mechanisms.

Background technique

The plugging method used in the traditional engine leak testing station is plane plugging. For the processing surface, this plugging method is economical and applicable, and the plugging effect is good. However, in the plugging of tubular structures such as water pipes and oil pipe orifices, the plugging effect of this method is very poor, and it is easy to leak;

There are mainly the following two problems: First, since the water pipes and oil pipes are generally sheet metal/stamping parts, the position of the nozzles has a large deviation, so it is easy to cause excessive extrusion on one side when plugging, and on the other/other side. The sealing is not in place, and there is still a gap. Secondly, water pipes and oil pipes are generally sheet metal/stamping parts, so the rigidity of the nozzle is poor. If a cylinder or an oil cylinder is used to hold the nozzle, the large pressure exerted on the nozzle will easily cause deformation of the pipeline and even make the product scrapped .

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a multi-channel plugging group adopting the internal expansion plugging method.

In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:

The present invention is a multi-channel plugging group adopting an internal expansion plugging method, comprising a base and a main body of a workpiece, the main body of the workpiece is fixedly installed on the base by a clamp, and the upper surface of the base is respectively fixed with a second A cylinder, a second cylinder and a third cylinder, one end of the piston rod of the first cylinder, the second cylinder and the third cylinder are respectively movably sleeved with a first sealing ring, a second sealing ring and a third sealing ring, so The piston rods of the first cylinder, the second cylinder and the third cylinder respectively drive the first sealing ring, the second sealing ring and the third sealing ring into the step surface 1, the step surface 2 and the step surface 3 in the main body of the workpiece. then exit.

Preferably, an angle guide rail mounting plate is fixedly connected to the surface of the base, a translational installation plate is fixedly connected to the right side wall of the first cylinder, and a left side wall of the translational installation plate is slidably connected to the right end of the angle guide rail installation plate .

Preferably, the surface of the base is fixedly connected with a front limit plate, the right side wall of the front limit plate is slidably connected with the left end of the angle guide rail mounting plate, and the surface of the base is fixedly connected with a fixing strip.

Preferably, the fixing bars are located on both sides of the second cylinder, a slider seat is fixedly connected to the surface of the base, and a push plate is slidably connected to the right side wall of the slider seat.

Preferably, the push plate is fixedly connected to the base, a cylinder connecting head is fixedly connected to the left side wall of the third cylinder, and a cylinder connecting plate is fixedly connected to both ends of the second cylinder.

Preferably, a connecting stud is fixedly connected to the right side wall of the second cylinder, and a large hole plug is fixedly connected to the left side of the third cylinder.

Preferably, the interior of the base is fixedly connected with double blocking rods, and the opposite sides of the two double blocking rods are fixedly connected with inner expansion rods.

The beneficial effects achieved by the present invention are:

1. The multi-channel plugging group using the internal expansion plugging method is set to operate the first cylinder. At the same time, the third cylinder also acts to withdraw the third sealing ring and the first sealing ring into the cavity, and the second cylinder acts to move the second cylinder. The sealing ring is blocked at the required sealing position. When in use, the sealing ring is movably sleeved on the air pressure rods in the three pneumatic cylinders. When the sealing ring is pushed to the inner wall of the designated position of the sealing ring on the main body of the workpiece The outer surface of the sealing ring is extruded and bonded to the inner wall of the workpiece under the action of thrust. At this time, when the air pressure rod of the cylinder is withdrawn, the sealing ring will not be taken out, so that the multi-channel sealing using the internal expansion sealing method is used. The plugging group has the effect of simultaneously using internal expansion to achieve the plugging effect of different end faces at the same position.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the top sectional view of the present invention;

Fig. 3 is the sectional view of the present invention;

Fig. 4 is a perspective view of the present invention.

As shown in the figure: 1. Base; 2. The first sealing ring; 3. The first cylinder; 4. The second cylinder; 5. The second sealing ring; 6. The third cylinder; 7. The third sealing ring; 8. The angle guide Mounting plate; 9. Translation mounting plate; 10. Front limit plate; 11. Fixing strip; 12. Slider seat; 13. Push plate; 14. Cylinder connector; 15. Cylinder connecting plate; 16. Connecting stud; 17. Large hole plug; 18. Double plugging rod; 19. Inwardly expanding tie rod; 20. The main body of the workpiece.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

As shown in Figures 1-4, a multi-channel plugging group using the internal expansion plugging method includes a base 1 and a workpiece body 20. The workpiece body 20 is fixedly installed on the base 1 through a clamp. The upper surface of the base 1 The first cylinder 3, the second cylinder 4 and the third cylinder 6 are respectively fixedly installed, and the piston rod ends of the first cylinder 3, the second cylinder 4 and the third cylinder 6 are respectively movably sleeved with the first sealing ring 2, the third cylinder The second sealing ring 5 and the third sealing ring 7, the piston rods of the first cylinder 3, the second cylinder 4 and the third cylinder 6 respectively drive the first sealing ring 2, the second sealing ring 5 and the third sealing ring 7 into the workpiece The first step surface, the second step surface and the third step surface in the main body 20 are backed out.

Further, the surface of the base 1 is fixedly connected with an angular rail mounting plate 8 , the right side wall of the first cylinder 3 is fixedly connected with a translational mounting plate 9 , and the left side wall of the translational mounting plate 9 is slidably connected with the right end of the angular rail mounting plate 8 . .

Further, the surface of the base 1 is fixedly connected with a front limit plate 10 , the right side wall of the front limit plate 10 is slidably connected to the left end of the angle guide rail mounting plate 8 , and the surface of the base 1 is fixedly connected with a fixing strip 11 .

Further, the fixing bars 11 are located on both sides of the second cylinder 4 , the surface of the base 1 is fixedly connected with a slider seat 12 , and the right side wall of the slider seat 12 is slidably connected with a push plate 13 .

Further, the push plate 13 is fixedly connected with the base 1 , the left side wall of the third cylinder 6 is fixedly connected with a cylinder connecting head 14 , and both ends of the second cylinder 4 are fixedly connected with a cylinder connecting plate 15 .

Further, a connecting stud 16 is fixedly connected to the right side wall of the second cylinder 4 , and a large hole plug 17 is fixedly connected to the left side of the third cylinder 6 .

Further, the interior of the base 1 is fixedly connected with double blocking rods 18 , and opposite sides of the two double blocking rods 18 are fixedly connected with inner expansion rods 19 .

Working principle: First, the main body 1 of the workpiece is fixed by the fixture, the piston rod of the first cylinder 3 extends out of the step surface close to the main body 1 of the workpiece 1, and the first sealing ring 2 is sent into place; secondly, the second cylinder 4 The piston rod extends close to the step surface 2 of the main body 1 of the workpiece, and the second sealing ring 5 is sent into place. Finally, the piston rod of the third cylinder 6 extends close to the step surface 3, and the third sealing ring 7 is sent into place. Press the in order.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (7)

1. A multi-channel blocking group adopting an internal expansion plugging method, comprising a base (1) and a main body of a workpiece (20), characterized in that: the main body of the workpiece (20) is fixedly mounted on the base by a clamp (1), a first air cylinder (3), a second air cylinder (4) and a third air cylinder (6) are respectively fixedly installed on the upper surface of the base (1). One ends of the piston rods of the cylinder (4) and the third cylinder (6) are respectively movably sleeved with a first sealing ring (2), a second sealing ring (5) and a third sealing ring (7). The piston rods of a cylinder (3), a second cylinder (4) and a third cylinder (6) respectively drive the first sealing ring (2), the second sealing ring (5) and the third sealing ring (7) into the workpiece The first step surface, the second step surface and the third step surface in the main body (20) are withdrawn. 2. A multi-channel plugging group using an internal expansion plugging method according to claim 1, characterized in that: the surface of the base (1) is fixedly connected with an angular guide rail mounting plate (8), and the first A translation mounting plate (9) is fixedly connected to the right side wall of a cylinder (3), and the left side wall of the translation mounting plate (9) is slidably connected to the right end of the angular rail mounting plate (8). 3. The multi-channel plugging group adopting an internal expansion plugging method according to claim 2, characterized in that: a front limit plate (10) is fixedly connected to the surface of the base (1), and the front The right side wall of the limiting plate (10) is slidably connected with the left end of the angular guide rail mounting plate (8), and the surface of the base (1) is fixedly connected with a fixing strip (11). 4. A multi-channel plugging group using an internal expansion plugging method according to claim 3, characterized in that: the fixing bars (11) are located on both sides of the second cylinder (4), the base (11) A slider seat (12) is fixedly connected to the surface of 1), and a push plate (13) is slidably connected to the right side wall of the slider seat (12). 5. The multi-channel plugging group adopting the internal expansion plugging method according to claim 4, characterized in that: the push plate (13) is fixedly connected with the base (1), and the third cylinder (6) ) is fixedly connected with a cylinder connecting head (14), and both ends of the second cylinder (4) are fixedly connected with a cylinder connecting plate (15). 6. The multi-channel plugging group adopting an internal expansion plugging method according to claim 1, wherein a connecting stud (16) is fixedly connected to the right side wall of the second cylinder (4), A large hole plug (17) is fixedly connected to the left side of the third cylinder (6). 7. The multi-channel plugging group adopting the internal expansion plugging method according to claim 1, characterized in that: the interior of the base (1) is fixedly connected with double plugging rods (18), and two of the The opposite sides of the double blocking rods (18) are fixedly connected with inner expansion pull rods (19).

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