Shaping device for piston sealing element of hydraulic oil cylinder

Abstract

The utility model discloses a hydraulic oil cylinder piston sealing element shaping device which comprises an installation bottom plate, a detachable propelling air cylinder and a detachable shaping assembly are arranged on the installation bottom plate, a piston push rod is arranged on the head portion of the propelling air cylinder, and the shaping assembly comprises a guide rail lower fixing seat, a guide rail upper fixing seat and a shaping barrel. The shaping cylinder is located between the guide rail lower fixing base and the guide rail upper fixing base, a longitudinally-arranged mounting support is arranged on the side portion of the mounting bottom plate, a longitudinally-arranged fixing vertical plate is arranged on the top of the mounting support, a shaping air cylinder is arranged on the fixing vertical plate, a positioning clamping jaw is arranged on the head of the shaping air cylinder, and the shaping air cylinder is connected with the positioning clamping jaw. And the positioning clamping jaw faces the shaping cylinder. The hydraulic oil cylinder piston sealing element shaping device is easy to operate, the outer ring of the shaped piston sealing element does not protrude out of the outer side of the piston sealing element any more, installation is convenient, ring cutting of the piston sealing element is effectively avoided, the effect is good, and practicability is high.

Description

Technical Field

[0001] This utility model relates to a piston shaping tool, or more precisely, a hydraulic cylinder piston seal shaping device. Background Technology

[0002] In existing technologies, such as Figure 3 As shown, a polytetrafluoroethylene outer ring P1 is provided on the outer wall of the piston seal P. When the piston seal P of the hydraulic cylinder is installed in the closed groove, the protruding outer ring P1 affects the installation. If it is forcibly installed without shaping, the outer ring P1 is easily cut off, causing damage to the piston seal P. Utility Model Content

[0003] Therefore, it is necessary to provide a hydraulic cylinder piston seal shaping device to address the aforementioned technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A hydraulic cylinder piston seal shaping device is characterized in that the device includes a mounting base plate, on which a detachable propulsion cylinder and a detachable shaping assembly are provided. The head of the propulsion cylinder is provided with a piston push rod. The shaping assembly includes a lower guide rail fixing seat, an upper guide rail fixing seat, and a shaping cylinder. The shaping cylinder is located between the lower guide rail fixing seat and the upper guide rail fixing seat. The side of the mounting base plate is provided with a longitudinally arranged mounting bracket. The top of the mounting bracket is provided with a longitudinally arranged fixing plate. The fixing plate is provided with a shaping cylinder. The head of the shaping cylinder is provided with a positioning claw, which faces the shaping cylinder.

[0006] In a preferred embodiment of this utility model, the propulsion cylinder is connected to the mounting base plate via a first screw.

[0007] In a preferred embodiment of this utility model, the lower surface of the guide rail upper fixing seat is provided with an arc-shaped upper fixing arc surface; the two sides of the guide rail upper fixing seat are provided with upper connecting flanges, and the upper connecting flanges are provided with a pair of first connecting screw holes; the shaping cylinder includes a cylindrical central sleeve, the head of the central sleeve is provided with a semi-cylindrical front guide cylinder, and the tail of the central sleeve is provided with a semi-cylindrical rear guide cylinder; the upper surface of the guide rail lower fixing seat is provided with an arc-shaped lower fixing arc surface; the bottom of the guide rail lower fixing seat is provided with four lower connecting flanges, and the lower connecting flanges are provided with second connecting screw holes; a pair of third connecting screw holes are provided on each of the two end faces of the lower fixing arc surface.

[0008] The radii of the upper and lower fixed arc surfaces are adapted to the radius of the outer wall of the central sleeve. The first connecting screw hole and the third connecting screw hole are connected by a second screw, and the second connecting screw hole is connected to the mounting base plate by a third screw.

[0009] In a preferred embodiment of this utility model, the radii of the upper fixed arc surface and the lower fixed arc surface are the same.

[0010] In a preferred embodiment of this utility model, the piston push rod and the central sleeve are coaxially arranged.

[0011] In a preferred embodiment of this utility model, the shaping cylinder is an integral structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model provides a hydraulic cylinder piston seal shaping device. The hydraulic cylinder piston seal shaping device is simple to operate. After shaping, the outer ring of the piston seal no longer protrudes from the outside of the piston seal. It is easy to install, effectively avoids the piston seal from cutting the ring, and has good effect and strong practicality. Attached Figure Description

[0014] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the hydraulic cylinder piston seal shaping device of this utility model.

[0016] Figure 2 for Figure 1 An exploded three-dimensional structural diagram of the hydraulic cylinder piston seal shaping device.

[0017] Figure 3 This is a schematic cross-sectional view of the piston seal of a hydraulic cylinder before it is shaped.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the piston seal of a hydraulic cylinder after shaping.

[0019] The markings in the diagram are explained as follows: 1. Mounting base plate; 10. Upper fixing seat on the guide rail; 101. Upper fixing arc surface; 102. Upper connecting flange; 103. First connecting screw hole; 11. Second screw; 12. Third screw; 2. First screw; 3. Push cylinder; 4. Shaping cylinder; 5. Fixing plate; 6. Positioning claw; 7. Piston push rod; 8. Lower fixing seat on the guide rail; 81. Lower fixing arc surface; 82. Lower connecting flange; 83. Second connecting screw hole; 84. Third connecting screw hole; 9. Shaping cylinder; 91. Center sleeve; 92. Front guide cylinder; 93. Rear guide cylinder; K. Mounting bracket; S. Shaping assembly. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] Such as 1 and Figure 2 As shown, the hydraulic cylinder piston seal shaping device includes a mounting base plate 1. The mounting base plate 1 is provided with a detachable propulsion cylinder 3 and a detachable shaping component S. The head of the propulsion cylinder 3 is provided with a piston push rod 7. The shaping component S includes a lower guide rail fixed seat 8, an upper guide rail fixed seat 10 and a shaping cylinder 9. The shaping cylinder 9 is located between the lower guide rail fixed seat 8 and the upper guide rail fixed seat 10. The side of the mounting base plate 1 is provided with a longitudinally arranged mounting bracket K. The top of the mounting bracket K is provided with a longitudinally arranged fixing plate 5. The fixing plate 5 is provided with a shaping cylinder 4. The head of the shaping cylinder 4 is provided with a positioning claw 6, which faces the shaping cylinder 9.

[0022] In addition, the propulsion cylinder 3 is connected to the mounting base plate 1 by the first screw 2.

[0023] like Figure 2 As shown, the lower surface of the guide rail upper fixing seat 10 is provided with an arc-shaped upper fixing arc surface 101. Upper connecting flanges 102 are provided on both sides of the guide rail upper fixing seat 10. A pair of first connecting screw holes 103 are provided on the upper connecting flanges 102. The shaping cylinder 9 includes a cylindrical central sleeve 91. The head of the central sleeve 91 is provided with a semi-cylindrical front guide cylinder 92, and the tail of the central sleeve 91 is provided with a semi-cylindrical rear guide cylinder 93. The upper surface of the guide rail lower fixing seat 8 is provided with an arc-shaped lower fixing arc surface 81. The bottom of the guide rail lower fixing seat 8 is provided with four lower connecting flanges 82. Second connecting screw holes 83 are provided on the lower connecting flanges 82. A pair of third connecting screw holes 84 are provided on each of the two end faces of the lower fixing arc surface 81.

[0024] The radii of the upper fixed arc surface 101 and the lower fixed arc surface 81 are adapted to the radii of the outer wall of the central sleeve 91. The first connecting screw hole 103 and the third connecting screw hole 84 are connected by the second screw 11, and the second connecting screw hole 83 is connected to the mounting base plate 1 by the third screw 12.

[0025] It should be noted that the upper fixed arc surface 101 and the lower fixed arc surface 81 have the same radius of curvature.

[0026] In addition, the piston push rod 7 is coaxially arranged with the central sleeve 91. The shaping cylinder 9 is a one-piece structure.

[0027] The following describes the working principle of the hydraulic cylinder piston seal shaping device, including the steps:

[0028] Step S1: Place the piston seal P to be shaped onto the front guide cylinder 92;

[0029] Step S2: Start the shaping cylinder 4 and push the positioning claw 6. Then, the inner circle of the positioning claw 6 engages with the outer circle of the piston seal P, so that the piston seal P to be shaped and the shaping cylinder 9 are in a coaxial state.

[0030] Step S3: Start the propulsion cylinder 3, which drives the piston push rod 7 to the right, pushing the piston seal P from the left side into the center sleeve 91 of the shaping cylinder 9, and out from one side of the rear guide cylinder 93. At this point, the shaping action is complete. Figure 3 and Figure 4 As can be seen, the outer ring P1 of the PTFE material of the piston seal P is compressed, its outer diameter is reduced, and it no longer protrudes from the outside of the piston seal P, which facilitates installation and effectively avoids the phenomenon of ring cutting.

[0031] This hydraulic cylinder piston seal shaping device is simple to operate. After shaping, the outer ring of the piston seal no longer protrudes from the outside of the piston seal, making installation convenient and effectively preventing the piston seal from cutting off the ring. It has good effect and strong practicality.

[0032] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.

Claims

1. A hydraulic cylinder piston seal shaping device, characterized in that, The hydraulic cylinder piston seal shaping device includes a mounting base plate (1), on which a detachable propulsion cylinder (3) and a detachable shaping component (S) are provided. The head of the propulsion cylinder (3) is provided with a piston push rod (7). The shaping component (S) includes a lower guide rail fixing seat (8), an upper guide rail fixing seat (10), and a shaping cylinder (9). The shaping cylinder (9) is located between the lower guide rail fixing seat (8) and the upper guide rail fixing seat (10). The side of the mounting base plate (1) is provided with a longitudinally arranged mounting bracket (K). The top of the mounting bracket (K) is provided with a longitudinally arranged fixing plate (5). The fixing plate (5) is provided with a shaping cylinder (4). The head of the shaping cylinder (4) is provided with a positioning claw (6). The positioning claw (6) faces the shaping cylinder (9).

2. The hydraulic cylinder piston seal shaping device according to claim 1, characterized in that, The propulsion cylinder (3) is connected to the mounting base plate (1) by the first screw (2).

3. The hydraulic cylinder piston seal shaping device according to claim 1, characterized in that, The upper fixing seat (10) of the guide rail has an arc-shaped upper fixing arc surface (101) on its lower surface. The upper fixing seat (10) of the guide rail has upper connecting flanges (102) on both sides. The upper connecting flanges (102) have a pair of first connecting screw holes (103). The shaping cylinder (9) includes a cylindrical central sleeve (91). The head of the central sleeve (91) has a semi-cylindrical front guide cylinder (92). The tail of the central sleeve (91) has a semi-cylindrical rear guide cylinder (93). The upper surface of the lower fixing seat (8) of the guide rail has an arc-shaped lower fixing arc surface (81). The bottom of the lower fixing seat (8) of the guide rail has four lower connecting flanges (82). The lower connecting flanges (82) have second connecting screw holes (83). The two end faces of the lower fixing arc surface (81) each have a pair of third connecting screw holes (84). The radii of the upper fixed arc surface (101) and the lower fixed arc surface (81) are adapted to the radii of the outer wall of the central sleeve (91). The first connecting screw hole (103) and the third connecting screw hole (84) are connected by a second screw (11). The second connecting screw hole (83) is connected to the mounting base plate (1) by a third screw (12).

4. The hydraulic cylinder piston seal shaping device according to claim 3, characterized in that, The upper fixed arc surface (101) and the lower fixed arc surface (81) have the same radius of curvature.

5. The hydraulic cylinder piston seal shaping device according to claim 3, characterized in that, The piston push rod (7) is coaxially arranged with the central sleeve (91).

6. The hydraulic cylinder piston seal shaping device according to claim 1, characterized in that, The shaping cylinder (9) is an integral structure.

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