PEEK inner container of laser welding structure

Abstract

The PEEK inner container of the laser welding structure comprises a cylindrical main bottle body, an upper installation cover is arranged above the main bottle body, an opening is formed in the upper surface of the main bottle body, a positioning installation groove is formed in the inner wall of the opening in the upper surface of the main bottle body, an opening is formed in the lower surface of the upper installation cover, and the opening is communicated with the positioning installation groove. And the inner wall of the opening in the lower surface of the upper mounting cover is fixedly connected with a reinforcing connecting plate. The PEEK inner container of the laser welding structure is provided with a positioning mounting groove and a reinforcing connecting plate, so that when the PEEK inner container works, the reinforcing connecting plate can be conveniently guided through the positioning mounting groove, and the reinforcing connecting plate can be conveniently and rapidly inserted and positioned; and then the contact area between the reinforcing connecting plate and the positioning mounting groove is increased to ensure that the connection stability is improved during laser welding, and through the trapezoidal section design of the reinforcing connecting plate, the strength is conveniently improved, breaking and cracking during a subsequent inflation test are prevented, and the connection strength of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PEEK gas cylinder processing, in particular to a PEEK liner with a laser welding structure. Background Art

[0002] PEEK polyetheretherketone is a special engineering plastic with excellent properties such as high temperature resistance, self-lubrication, easy processing and high mechanical strength. It can be manufactured and processed into various mechanical parts, such as automobile gears, oil screens, shift start plates; aircraft engine parts, automatic washing machine wheels, medical device parts, etc. Because PEEK can withstand repeated high-pressure sterilization, it can be used in medical devices to manufacture endoscope parts, dental descaling devices, etc. In addition, due to the high strength and low solubility of PEEK, it has been used in liquid chromatography columns, tubes, accessories, etc. for instrumental analysis. Moreover, because PEEK has good compatibility with the human body, it has successfully replaced traditional titanium metal as an artificial bone material, which is the main application area of ​​PEEK.

[0003] PEEK polyetheretherketone resin is a special engineering plastic with excellent performance. Compared with other special engineering plastics, it has many significant advantages. When processing existing PEEK material gas cylinders, the gas cylinder welding process is divided into three steps. The sunscreen is evenly applied on the welding annular contact surface of the upper cover and the main body of the bottle. The bottle body is fixed horizontally on a rotating carrier. The ABB robotic arm aligns the laser welding end with the welding annular surface of the upper cover and the main body of the bottle, and finally performs rotational welding. The prepared gas cylinders will be filled with gas for testing later. The thickness of the PEEK outer layer connection is relatively thin, the stress area is small, and the pressure resistance is low, so it is easy to crack and break during the inflation test. Utility Model Content

[0004] The purpose of the utility model is to provide a PEEK liner with a laser welding structure to solve the problem in the above background technology that the PEEK outer layer connection is relatively thin, the stress-bearing area is small, the pressure resistance is low, and it is easy to crack and break during the inflation test.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PEEK liner with a laser welding structure, comprising a main bottle body, which is cylindrical in design, an upper mounting cover is arranged above the main bottle body, an opening is arranged on the upper surface of the main bottle body, a positioning mounting groove is arranged on the inner wall of the opening on the upper surface of the main bottle body, an opening is arranged on the lower surface of the upper mounting cover, a reinforcing connecting plate is fixedly connected to the inner wall of the opening on the lower surface of the upper mounting cover, an opening is arranged on the upper surface of the upper mounting cover, and a gas nozzle limiting block is fixedly connected to the inner wall of the opening on the upper surface of the upper mounting cover, a sealing connecting block is fixedly connected to the upper surface of the gas nozzle limiting block, a gas nozzle supporting block is installed on the outer surface of the sealing connecting block, and a gas nozzle body is fixedly connected to the upper surface of the gas nozzle supporting block.

[0006] Preferably, the outer diameter of the main bottle body is the same as the outer diameter of the upper mounting cover, and the positioning mounting groove is annular in design.

[0007] By adopting the above technical solution, the outer diameter of the main bottle body is the same as the outer diameter of the upper mounting cover, which is convenient for the overall beauty of subsequent products, and the annular positioning mounting groove is convenient for increasing stability.

[0008] Preferably, the reinforcing connecting plate is annular in design, and the vertical cross-section of the reinforcing connecting plate is isosceles trapezoidal in design, the outer diameter of the reinforcing connecting plate is larger than the inner diameter of the main bottle body, and the lower end of the reinforcing connecting plate overlaps the bottom surface of the positioning and mounting groove.

[0009] By adopting the above technical solution, the reinforcing connecting plate with an annular design can be inserted into the positioning installation groove for positioning connection, which improves the installation efficiency, improves the stability of subsequent connections, and is beneficial to improve the strength of the welding part of the device to prevent cracking during testing.

[0010] Preferably, the air nozzle limit block is connected to the sealing connection block, the inner wall of the opening at the lower end of the air nozzle limit block is of arc-shaped design, and the connection between the lower end of the air nozzle limit block and the inner wall of the main bottle body is of arc-shaped design.

[0011] By adopting the above technical solution, the gas flow is facilitated by connecting the gas nozzle limit block with the sealing connection block, and the gas flow efficiency is improved by guiding the gas through the arc-shaped lower surface of the gas nozzle limit block.

[0012] Preferably, an annular protrusion is provided on the side surface of the sealing connection block, and a connecting thread is provided on the outer surface of the protrusion of the sealing connection block.

[0013] By adopting the above technical solution, the connecting thread of the sealing connection block is used to connect and fix the air nozzle support block, and the annular protrusion on the side surface of the sealing connection block is used to limit the first O-ring and the second O-ring.

[0014] Preferably, a connecting groove is provided on the lower surface of the air nozzle support block, and the connecting groove of the air nozzle support block is threadedly connected with the sealing connection block through a connecting thread, and a first O-ring is provided above the protrusion of the sealing connection block and between the air nozzle support block.

[0015] By adopting the above technical scheme, the sealing connection block can be easily installed through the connecting groove on the lower surface of the air nozzle support block, and the first O-ring is limited and pressed through the inner wall between the upper part of the sealing connection block and the air nozzle support block, so that the first O-ring can fit the inner wall of the sealing connection block and the air nozzle support block for sealing.

[0016] Preferably, a second O-ring is provided between the lower portion of the sealing connection block protrusion and the air nozzle support block, the lower end side surface of the connecting groove of the air nozzle support block is inclined, and the air nozzle support block is connected to the air nozzle body.

[0017] By adopting the above technical solution, the second O-ring can be limited and pressed through the inner wall between the bottom of the sealing connection block protrusion and the air nozzle support block, so that the second O-ring can fit the inner wall of the sealing connection block and the air nozzle support block after deformation, thereby improving the sealing performance.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the PEEK liner of the laser welding structure:

[0019] 1. A positioning installation groove and a strengthening connection plate are provided, so that when the device is working, the positioning installation groove is used to guide the strengthening connection plate, which is convenient for the strengthening connection plate to be quickly inserted and positioned, and then the contact area between the strengthening connection plate and the positioning installation groove is increased to ensure the stability of the connection during laser welding, and the trapezoidal cross-section design of the strengthening connection plate is used to increase the strength, prevent the subsequent breakage and cracking during the inflation test, and improve the strength of the connection of the device;

[0020] 2. A gas nozzle limit block and a sealing connection block are provided, so that when the device is working, the arc design of the lower surface of the gas nozzle limit block facilitates the gas guidance, thereby improving the efficiency of gas flow, and the gas nozzle support block is effectively connected through the sealing connection block and the connecting thread, thereby increasing the connection efficiency;

[0021] 3. An air nozzle support block and a first O-ring are provided so that when the device is working, the first O-ring and the second O-ring are installed in a limited position between the connecting groove of the air nozzle support block and the sealing connection block, which facilitates pressing and fixing the first O-ring and the second O-ring, so that the first O-ring and the second O-ring fit between the air nozzle support block and the sealing connection block, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the main bottle body and the upper mounting cover connected to the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the main bottle body and the positioning installation groove of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper mounting cover and the positioning mounting groove of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the upper mounting cover and the sealing connection block of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection between the air nozzle support block and the air nozzle body of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection between the first O-ring and the second O-ring of the utility model.

[0028] In the figure: 1. Main bottle body; 2. Upper mounting cover; 3. Positioning mounting groove; 4. Reinforced connecting plate; 5. Air nozzle limit block; 6. Sealing connecting block; 7. Connecting thread; 8. Air nozzle support block; 9. Air nozzle body; 10. First O-ring; 11. Second O-ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 The utility model provides a technical solution: a PEEK liner with a laser welding structure, comprising a main bottle body 1, an upper mounting cover 2, a positioning mounting groove 3, a reinforcing connecting plate 4, a nozzle limit block 5, a sealing connecting block 6, a connecting thread 7, a nozzle support block 8, a nozzle body 9, a first O-ring 10 and a second O-ring 11. The main bottle body 1 is cylindrical in design, and the outer diameter of the main bottle body 1 is the same as the outer diameter of the upper mounting cover 2. The positioning mounting groove 3 is an annular design. When processing the device, a positioning mounting groove 3 is opened on the inner wall of the upper surface of the main bottle body 1, and the reinforcing connecting plate 4 is fixed on the inner wall of the lower surface of the upper mounting cover 2, so that the reinforcing connecting plate 4 is plugged into the positioning mounting groove 3 for rapid positioning connection.

[0031] An upper mounting cover 2 is arranged above the main bottle body 1, an opening is arranged on the upper surface of the main bottle body 1, a positioning mounting groove 3 is arranged on the inner wall of the opening on the upper surface of the main bottle body 1, the reinforcing connecting plate 4 is of annular design, and the vertical cross-section of the reinforcing connecting plate 4 is of isosceles trapezoidal design, the outer diameter of the reinforcing connecting plate 4 is larger than the inner diameter of the main bottle body 1, the lower end of the reinforcing connecting plate 4 is overlapped on the bottom surface of the positioning mounting groove 3, the reinforcing connecting plate 4 is inserted into the positioning mounting groove 3 to connect the main bottle body 1 and the upper mounting cover 2, and then the main bottle body 1 and the upper mounting cover 2 are laser welded, the contact surface increased by the reinforcing connecting plate 4 and the positioning mounting groove 3 improves the stability of the connection, and at the same time, the reinforced connecting plate 4 after welding is designed with its trapezoidal cross-section, which is convenient for increasing the strength of the welding point, thereby preventing damage and cracking during the inflation test, thereby improving the practicability of the device.

[0032] An opening is provided on the lower surface of the upper mounting cover 2, and a reinforcing connecting plate 4 is fixedly connected to the inner wall of the opening on the lower surface of the upper mounting cover 2. The air nozzle limit block 5 is connected to the sealing connection block 6. The inner wall of the opening at the lower end of the air nozzle limit block 5 is of arc-shaped design, and the connection between the lower end of the air nozzle limit block 5 and the inner wall of the main bottle body 1 is of arc-shaped design. An annular protrusion is provided on the side surface of the sealing connection block 6, and a connecting thread 7 is provided on the outer surface of the protrusion of the sealing connection block 6. When installing the air nozzle support block 8, the first O-ring 10 is placed above the protrusion of the sealing connection block 6, and the second O-ring 11 is placed below the protrusion of the sealing connection block 6. The air nozzle support block 8 is connected to the connecting thread 7 by rotating it, so as to facilitate the fixing of the air nozzle support block 8 and the sealing connection block 6.

[0033] An opening is provided on the upper surface of the upper mounting cover 2, and a gas nozzle limiting block 5 is fixedly connected to the inner wall of the opening on the upper surface of the upper mounting cover 2, a sealing connection block 6 is fixedly connected to the upper surface of the gas nozzle limiting block 5, a gas nozzle supporting block 8 is installed on the outer surface of the sealing connection block 6, a gas nozzle body 9 is fixedly connected to the upper surface of the gas nozzle supporting block 8, a connecting groove is provided on the lower surface of the gas nozzle supporting block 8, and the connecting groove of the gas nozzle supporting block 8 is threadedly connected with the sealing connection block 6 through a connecting thread 7, a first O-ring 10 is provided between the upper part of the sealing connection block 6 and the gas nozzle supporting block 8, and the lower part of the sealing connection block 6 and the gas nozzle supporting block 8 are connected to the gas nozzle supporting block 8. A second O-ring 11 is arranged in between, and the lower end side surface of the connecting groove of the air nozzle support block 8 is inclined. The air nozzle support block 8 is connected to the air nozzle body 9, and is connected through the air nozzle support block 8 and the sealing connection block 6, so that the inner wall of the connecting groove of the air nozzle support block 8 is convenient for pressing the first O-ring 10 and the second O-ring 11, so that the first O-ring 10 and the second O-ring 11 are deformed and fit between the sealing connection block 6 and the air nozzle support block 8, thereby improving the sealing of the device, and through the arc design of the lower surface of the air nozzle limit block 5, it is convenient to guide the gas, thereby improving the flow efficiency of the gas when it is used.

[0034] Working principle: When using the PEEK liner with the laser welding structure, first, a positioning and mounting groove 3 is opened on the inner wall of the opening on the upper surface of the main bottle body 1, and a reinforcing connecting plate 4 is fixed to the inner wall of the opening on the lower surface of the upper mounting cover 2. During processing, the reinforcing connecting plate 4 is inserted into the positioning and mounting groove 3 for connection and positioning. Subsequently, the main bottle body 1 and the upper mounting cover 2 are fixed by laser welding to increase stability. At the same time, the strength is improved by reinforcing the trapezoidal cross-section design of the connecting plate 4 to prevent damage during the inflation test. The air nozzle support block 8 is rotated to connect and fix it to the sealing connection block 6 through the connecting thread 7. At the same time, the air nozzle support block 8 will press the first O-ring 10 and the second O-ring 11, so that the first O-ring 10 and the second O-ring 11 are deformed and fit the inner walls of the air nozzle support block 8 and the sealing connection block 6, thereby improving the sealing and increasing the overall practicality.

[0035] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PEEK liner of laser welding structure, comprising a main bottle body (1) of cylindrical design, an upper mounting cover (2) being arranged above the main bottle body (1), characterized in that: The upper surface of the main bottle body (1) is provided with an opening, the inner wall of the upper surface opening of the main bottle body (1) is provided with a positioning installation groove (3), the lower surface of the upper installation cover (2) is provided with an opening, the inner wall of the lower surface opening of the upper installation cover (2) is fixedly connected with a reinforcing connection plate (4), the upper surface of the upper installation cover (2) is provided with an opening, and the inner wall of the upper surface opening of the upper installation cover (2) is fixedly connected with a gas nozzle limiting block (5), the upper surface of the gas nozzle limiting block (5) is fixedly connected with a sealing connection block (6), the outer surface of the sealing connection block (6) is provided with a gas nozzle supporting block (8), and the upper surface of the gas nozzle supporting block (8) is fixedly connected with a gas nozzle body (9).

2. The PEEK liner of the laser welded structure according to claim 1, characterized in that: The outer diameter of the main bottle body (1) is the same as the outer diameter of the upper mounting cover (2), and the positioning mounting groove (3) is of an annular design.

3. The PEEK liner of the laser welded structure according to claim 1, characterized in that: The reinforcing connecting plate (4) is of an annular design, and the vertical cross section of the reinforcing connecting plate (4) is of an isosceles trapezoidal design. The outer diameter of the reinforcing connecting plate (4) is greater than the inner diameter of the main bottle body (1), and the lower end of the reinforcing connecting plate (4) overlaps the bottom surface of the positioning installation groove (3).

4. The PEEK liner of the laser welded structure according to claim 1, characterized in that: The air nozzle limit block (5) is connected to the sealing connection block (6), the inner wall of the lower opening of the air nozzle limit block (5) is designed to be arc-shaped, and the connection between the lower end of the air nozzle limit block (5) and the inner wall of the main bottle body (1) is designed to be arc-shaped.

5. The PEEK liner of the laser welded structure according to claim 1, characterized in that: The side surface of the sealing connection block (6) is provided with an annular protrusion, and the outer surface of the protrusion of the sealing connection block (6) is provided with a connecting thread (7).

6. The PEEK liner of the laser welded structure according to claim 5, characterized in that: The lower surface of the air nozzle support block (8) is provided with a connection groove, and the connection groove of the air nozzle support block (8) is threadedly connected with the sealing connection block (6) through a connecting thread (7), and a first O-ring (10) is provided between the upper part of the protrusion of the sealing connection block (6) and the air nozzle support block (8).

7. The PEEK liner of the laser welded structure according to claim 5, characterized in that: A second O-ring (11) is arranged between the lower portion of the protrusion of the sealing connection block (6) and the air nozzle support block (8); the lower end side surface of the connecting groove of the air nozzle support block (8) is inclined; and the air nozzle support block (8) is connected to the air nozzle body (9).

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