Corrosion-resistant lining stainless steel joint preforming equipment
By designing a pre-forming equipment for corrosion-resistant stainless steel lined joints, and utilizing components such as lifting motors and hydraulic presses, the automated docking of stainless steel joints and corrugated pipes and the processing of stepped surfaces are achieved. This solves the problems of complexity and wear in traditional processes, and improves processing accuracy and automation.
Patent Information
- Application Number
- CN202422682806.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Traditional corrugated pipe joint manufacturing processes are complex, resulting in low product quality. Furthermore, the processing of stainless steel lined joints requires manual operation, making continuous automated processing difficult and prone to wear.
A preforming device for corrosion-resistant stainless steel lined joints was designed. Utilizing components such as a lifting motor, hydraulic press, and push rod motor, the device enables automatic docking of stainless steel joints with corrugated pipes and processing of stepped surfaces, thus avoiding wear on the lining.
It enables automated docking of stainless steel joints and corrugated pipes and the processing of stepped surfaces, improving processing accuracy and the degree of automation of equipment, avoiding wear of the inner lining, and making it easy to promote and use.
Smart Images

Figure CN223616539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alloy parts processing technology, specifically to a preforming equipment for corrosion-resistant stainless steel lined joints. Background Technology
[0002] Composite material pipes, with their excellent properties such as corrosion resistance, high strength, and light weight, have been widely used in many fields such as chemical and petroleum industries. For example, alloy corrugated pipes require joints for interconnection or connection with other materials during use. Traditional pipe joints using cloth tape or fiber winding have complex shapes, making the manufacturing process complicated and the product quality not high. At the same time, for stainless steel lined joints, preventing wear of the lining is also an issue that needs to be considered.
[0003] Corrugated pipe fittings come in various forms, commonly including straight connections, tees, multi-way fittings, and elbows. For straight-connected threaded fittings, if one end of the corrugated pipe is pre-connected to the fitting, the threaded stainless steel-lined fitting is first inserted into one end of the threaded pipe, and then a stepped surface is machined on the end of the threaded pipe. Sometimes, a stepped surface also needs to be machined on the threaded stainless steel-lined fitting. This process is generally completed manually with the aid of lathes, and there is no continuous complete process forming equipment yet. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a preforming device for corrosion-resistant stainless steel lined joints.
[0005] The technical solution of this utility model is:
[0006] A corrosion-resistant stainless steel lining preforming device includes a base, a first fixing plate and a second fixing plate located on the upper surface of the base. The first fixing plate has a first fixing rod that can be raised, lowered and extended on its inner side. The second fixing plate has a second fixing rod and a third fixing rod fixed on its inner side wall. The third fixing rod is located directly above the second fixing rod. The end of the first fixing rod has a magnet, the end of the second fixing rod has a positioning block, and the end of the third fixing rod has a positioning ring. The positioning block is inverted L-shaped and has a thickened section at the top. A hydraulic press is located on the upper surface of the middle part of the base.
[0007] Furthermore, a lifting motor is provided on the outer side of the first fixed plate, a lifting rod is provided above the lifting motor, a slot is provided in the middle of the first fixed plate, and a connecting rod provided on one side of the lifting rod passes through the slot and is connected to the rear end of the first fixed rod.
[0008] Note: The raising and lowering of the first fixed rod is controlled by a lifting motor.
[0009] Furthermore, a limiting block is provided in the middle of the connecting rod, and the limiting block is slidably connected to the limiting grooves provided on the two side walls inside the slot.
[0010] Note: The stability of the first fixed rod during lifting and lowering is maintained by the limit block and limit groove.
[0011] Furthermore, when the first fixing rod is at its lowest position, the magnet block and the positioning block are on the same horizontal line.
[0012] Note: By restricting the lowest position of the first fixing rod, it is possible to easily begin the pressing operation of the stainless steel liner joint.
[0013] Furthermore, the output shaft of the hydraulic press has a circular cross-section.
[0014] Furthermore, a push rod motor is provided on the upper surface of the base on one side of the hydraulic press. The output end of the push rod motor is connected to the side wall of the hydraulic press to push the hydraulic press to slide left and right, so that the output shaft of the hydraulic press covers the position of the positioning block and the positioning ring in the vertical direction.
[0015] Note: The push rod motor facilitates the connection between the hydraulic press output shaft and the connector or bellows.
[0016] The beneficial effects of this utility model are:
[0017] This utility model discloses a pre-forming equipment for corrosion-resistant stainless steel lined joints. It can process stainless steel lined joints and then insert the processed stainless steel lined joints into the corrugated pipe to be processed. The end of the corrugated pipe is then processed immediately. The equipment has a high degree of automation, can achieve fully automatic operation, and has high precision. It will not cause wear on the lining of the stainless steel lined joint during processing. It is highly practical and easy to promote and use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure on the right side of a corrosion-resistant stainless steel lining joint preforming equipment according to this utility model.
[0019] Figure 2 This is a schematic diagram of the overall structure on the left side of a corrosion-resistant stainless steel lining joint preforming equipment according to this utility model.
[0020] Figure 3 This is a front view of a corrosion-resistant stainless steel lined joint preforming equipment according to this utility model during the processing of stainless steel lined joints.
[0021] Figure 4 This is a front view of a pre-forming equipment for corrosion-resistant stainless steel lined joints of this utility model when processing a corrugated pipe that is connected to a stainless steel lined joint.
[0022] Figure 5 This is a schematic diagram of the internal structure of the left side of the first fixed plate of a corrosion-resistant stainless steel lining joint preforming equipment according to this utility model.
[0023] Among them, 1-base, 2-first fixing plate, 21-slot, 22-limiting slot, 3-second fixing plate, 4-first fixing rod, 41-magnet block, 5-second fixing rod, 51-positioning block, 52-thickened section, 6-third fixing rod, 61-positioning ring, 7-hydraulic press, 8-lifting motor, 81-lifting rod, 82-connecting rod, 83-limiting block, 9-push rod motor. Detailed Implementation
[0024] Example 1
[0025] like Figure 1 and 2 As shown, a corrosion-resistant stainless steel lined joint preforming equipment includes a base 1, a first fixing plate 2 and a second fixing plate 3 located on the upper surface of the base 1. The inner side of the first fixing plate 2 is provided with a first fixing rod 4 that can be raised, lowered and extended. The first fixing rod 4 is a commercially available electro-hydraulic actuator. The inner side wall of the second fixing plate 3 is fixed with a second fixing rod 5 and a third fixing rod 6. The third fixing rod 6 is located directly above the second fixing rod 5. The end of the first fixing rod 4 is provided with a magnet block 41. The end of the second fixing rod 5 is provided with a positioning block 51. The end of the third fixing rod 6 is provided with a positioning ring 61. The positioning block 51 is arranged in an inverted L shape. The upper part of the positioning block 51 is a thickened section 52. The upper surface of the middle part of the base 1 is provided with a hydraulic press 7. The hydraulic press 7 is a commercially available hydraulic press. The output shaft cross-section of the hydraulic press 7 is circular.
[0026] like Figure 1 and 5 As shown, a lifting motor 8 is provided on the outer side of the first fixed plate 2. The lifting motor 8 is a commercially available industrial lifting motor. A lifting rod 81 is provided above the lifting motor 8. A slot 21 is provided in the middle of the first fixed plate 2. A connecting rod 82 provided on one side of the lifting rod 81 passes through the slot 21 and is connected to the rear end of the first fixed rod 4. A limiting block 83 is provided in the middle of the connecting rod 82. The limiting block 83 is slidably connected to the limiting grooves 22 provided on the inner side walls of the slot 21. When the first fixed rod 4 is at the bottom, the magnet block 41 and the positioning block 51 are located on the same horizontal line.
[0027] like Figure 1 As shown, a push rod motor 9 is provided on the upper surface of the base 1 on one side of the hydraulic press 7. The push rod motor 9 is a commercially available gear reduction motor. The output end of the push rod motor 9 is connected to the side wall of the hydraulic press 7 to push the hydraulic press 7 to slide left and right, so that the output shaft of the hydraulic press 7 covers the position of the positioning block 51 and the positioning ring 61 in the vertical direction.
[0028] Working principle:
[0029] The working principle of a corrosion-resistant stainless steel lining joint preforming equipment according to Embodiment 1 of this utility model will be briefly explained below.
[0030] In use, the internal structure of the threaded stainless steel liner needs to be machined to allow it to mate with the bellows. The stainless steel liner is then placed on the magnet block 41. Next, the first fixing rod 4 is activated, pushing the magnet block 41 and the stainless steel liner towards the positioning block 51. Since the magnet block 41 and the positioning block 51 are on the same horizontal line when the first fixing rod 4 is at its lowest position, the stainless steel liner stops moving when it reaches the positioning block 51. Figure 3 As shown;
[0031] Then, the hydraulic press 7 is activated to move the output shaft upwards to process the center of the stainless steel liner joint, creating a stepped surface. Next, the bellows to be processed is placed inside the positioning ring 61. The first fixing rod 4 is retracted, causing the processed stainless steel liner joint to move from the bottom of the bellows to the middle. The lifting motor 8 is activated to move the lifting rod 81 upwards, allowing the limiting block 83 to slide within the limiting groove 22, maintaining stability during the upward movement. The upward movement process is programmed to prevent contact and wear between the inner wall of the stainless steel liner joint and the outer wall of the bellows. The result is as follows: Figure 4 The state shown;
[0032] At this time, the stainless steel lining joint abuts against the thickened section 52 of the positioning block 51, and the bellows is also fixed by the external force above it. By turning on the push rod motor 9 and moving it to the left a certain distance, the output shaft of the hydraulic press 7 is positioned directly below the bellows. Then, the hydraulic press 7 is turned on again to move the output shaft up to process the bottom of the bellows and press out the stepped surface. Finally, the stainless steel lining joint is lowered by the lifting motor 8 in conjunction with the first fixing rod 4 so that the two stepped surfaces are connected to complete the installation of the joint.
[0033] If the stainless steel lining joint is large, during the above-mentioned processing of the corrugated pipe, the stainless steel lining joint should not be brought into contact with the thickened section 52 of the positioning block 51. Instead, the stainless steel lining joint should be placed above the thickened section, and the working mode can be adjusted as needed.
Claims
1. A preforming equipment for corrosion-resistant stainless steel lined joints, characterized in that, The base includes a base (1), a first fixing plate (2) and a second fixing plate (3) located on the upper surface of the base (1). The first fixing plate (2) has a first fixing rod (4) that can be raised, lowered and extended on its inner side. The second fixing plate (3) has a second fixing rod (5) and a third fixing rod (6) fixed on its inner side wall. The third fixing rod (6) is located directly above the second fixing rod (5). The end of the first fixing rod (4) has a magnet (41). The end of the second fixing rod (5) has a positioning block (51). The end of the third fixing rod (6) has a positioning ring (61). The positioning block (51) is inverted L-shaped. The upper part of the positioning block (51) is a thickened section (52). The upper surface of the middle part of the base (1) is provided with a hydraulic press (7).
2. The corrosion-resistant stainless steel lining joint preforming equipment according to claim 1, characterized in that, A lifting motor (8) is provided on the outside of the first fixing plate (2), and a lifting rod (81) is provided above the lifting motor (8). A slot (21) is provided in the middle of the first fixing plate (2), and a connecting rod (82) provided on one side of the lifting rod (81) passes through the slot (21) and is connected to the rear end of the first fixing rod (4).
3. The corrosion-resistant stainless steel lining joint preforming equipment according to claim 2, characterized in that, The connecting rod (82) is provided with a limiting block (83) in the middle, and the limiting block (83) is slidably connected to the limiting grooves (22) provided on the inner two side walls of the slot (21).
4. The corrosion-resistant stainless steel lining joint preforming equipment according to claim 2, characterized in that, When the first fixing rod (4) is at its lowest position, the magnet block (41) and the positioning block (51) are on the same horizontal line.
5. The preforming equipment for corrosion-resistant stainless steel lined joints according to claim 1, characterized in that, The output shaft of the hydraulic press (7) has a circular cross-section.
6. The corrosion-resistant stainless steel lining joint preforming equipment according to claim 5, characterized in that, A push rod motor (9) is provided on the upper surface of the base (1) on one side of the hydraulic press (7). The output end of the push rod motor (9) is connected to the side wall of the hydraulic press (7) to push the hydraulic press (7) to slide left and right, so that the output shaft of the hydraulic press (7) covers the position of the positioning block (51) and the positioning ring (61) in the vertical direction.