A thick copper pipe and stainless steel rod explosion composite butt joint device

Abstract

The application is suitable for the technical field of metal composite processing, and particularly relates to a thick copper pipe and stainless steel rod explosion composite butt joint device. The copper pipe positioning ring is internally connected with a support ring, one end of the support ring is provided with a plurality of rotating parts, and the outer side of the rotating part is rotatably connected with an adjustable steel rod positioning block. The technical scheme can not only ensure high-precision coaxial positioning of the thick copper pipe and the steel rod, but also automatically adapt to columnar steel rods with different outer diameters within a certain range, avoiding the shortcomings of traditional methods that rely on manual replacement of clamps or repeated adjustment. Through cooperation of the arc-shaped guide surface and the elastic reset part, the positioning process is more stable and reliable, and the reset is rapid, improving the automation degree and the repeat positioning precision of the device. Compared with the prior art, the application has stronger applicability and can efficiently meet the positioning needs of steel rods with different specifications, providing a stable and accurate prerequisite for the explosion composite process.

Description

Technical Field

[0001] This invention relates to the field of metal composite processing technology, specifically a device for explosive composite docking of thick copper tubes and stainless steel bars. Background Technology

[0002] Metal composite processing technology is an important development direction in the current materials manufacturing field, especially in industries such as power, metallurgy, and chemicals, where it is often necessary to combine metals with different properties to balance conductivity, corrosion resistance, and structural strength. Copper has excellent electrical and thermal conductivity, while stainless steel has high mechanical strength and corrosion resistance. By joining these two materials through an explosive bonding process, composite components that combine conductivity and corrosion resistance can be produced, thus having wide application value in the manufacture of electrical equipment, marine engineering, and corrosion-resistant structural components.

[0003] In existing explosive bonding processes for thick copper tubes and stainless steel bars, coaxiality is typically maintained manually or with simple positioning rings and clamps. However, due to variations in the outer diameter of stainless steel bars during processing and manufacturing, conventional fixed clamps are difficult to adapt to bars of different diameters. This often necessitates replacing the positioning sleeve or repeated adjustments for different specifications, making the process cumbersome and compromising positioning accuracy. Furthermore, existing positioning mechanisms often employ rigid contact, which can easily lead to center displacement of the steel bar when subjected to uneven force, thus affecting the uniformity and bonding quality of the subsequent explosive bonding interface.

[0004] Therefore, existing technologies generally suffer from the following shortcomings: a lack of positioning mechanisms capable of automatically adapting to steel bars of different outer diameters within a certain range, resulting in poor applicability of the device; simple positioning block or clamp structures, making it difficult to maintain stable coaxiality and repeatability during adjustment; and reliance on manual adjustment for resetting, which is inefficient and prone to large errors, failing to meet the high-precision docking requirements for the explosive bonding of thick copper tubes and steel bars. In summary, there is an urgent need for a docking device capable of automated adjustment, applicable to steel bars of different specifications, and ensuring high-precision coaxial positioning to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide an explosive composite docking device for thick copper tubes and stainless steel rods, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A device for explosive composite docking of thick copper tube and stainless steel rod includes a copper tube positioning ring, a support ring connected inside the copper tube positioning ring, and a plurality of rotating parts installed at one end of the support ring. An adjustable steel rod positioning block is rotatably connected to the outside of the rotating parts. An elastic element is installed on both the adjustable steel rod positioning block and the inner side of the support ring.

[0008] The end of the support ring away from the rotating component is connected to a support top plate, and the support top plate and the support ring are jointly provided with several sets of precision drive components. The precision drive components are used to drive the adjustable steel bar positioning block to rotate through the rotating component.

[0009] Furthermore, the outer surface of the adjustable steel rod positioning block is configured as an arc-shaped structure.

[0010] Furthermore, the elastic element is a spring or a torsion spring.

[0011] Furthermore, the rotating component is a hinge or a unidirectional rotating connection structure of a pivot.

[0012] Furthermore, the precision drive assembly includes a ball nut that is slidably connected inside the support ring. A servo motor is mounted on the surface of the support top plate, and a ball screw is mounted on the output end of the servo motor. The ball screw is engaged inside the ball nut. The thickness of the ball nut is the same as the width between the top of the adjustable steel bar positioning block and the support ring in the initial state.

[0013] Furthermore, the support ring has a guide groove inside, and the ball nut has a guide slider installed on its surface. The ball nut is slidably connected inside the support ring through the cooperation of the guide slider and the guide groove.

[0014] Furthermore, a controller is mounted on the surface of the supporting top plate.

[0015] Furthermore, a copper tube positioning area is formed between the copper tube positioning ring and the support ring.

[0016] Furthermore, the outer side of the copper tube positioning ring is connected to several lifting sleeve rods, and the inside of the lifting sleeve rods is slidably connected to a slide rod. One end of the slide rod is connected to a movable base, and the surface of the movable base is equipped with self-locking universal wheels.

[0017] Furthermore, an electric telescopic rod is installed on the surface of the movable base, and one end of the electric telescopic rod is connected to a connecting block, the outer side of which is connected to the outer side of the lifting sleeve rod.

[0018] The present invention provides an explosive composite docking device for thick copper tubes and stainless steel rods, which has the following beneficial effects:

[0019] This invention achieves synchronous rotation and automatic adjustment of the positioning blocks by arranging several adjustable steel rod positioning blocks between the copper tube positioning ring and the support ring, and combining them with a ball screw-ball nut transmission system driven by a servo motor. The positioning blocks adopt a V-shaped structure, which can tilt and retract towards the axis under the driving action, thereby forming a positioning ring that matches the outer diameter of the stainless steel rod.

[0020] This design not only ensures high-precision coaxial positioning of the thick copper tube and the steel rod, but also automatically adapts to cylindrical steel rods of different outer diameters within a certain range, avoiding the shortcomings of traditional methods that rely on manual clamp replacement or repeated adjustments. Through the cooperation of the arc-shaped guide surface and the elastic reset component, the positioning process is more stable and reliable, with rapid reset, improving the automation level and repeatability of the device. Compared with existing technologies, this invention has wider applicability and can efficiently meet the positioning requirements of steel rods of various specifications, providing stable and precise prerequisites for explosive composite processes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a device for explosive composite docking of a thick copper tube and a stainless steel rod.

[0022] Figure 2 This is a partial structural schematic diagram of an explosive composite docking device for thick copper tubes and stainless steel bars.

[0023] Figure 3 This is a schematic diagram of the precision drive component in an explosive composite docking device for thick copper tubes and stainless steel bars.

[0024] In the diagram: 1. Movable base; 2. Self-locking caster wheel; 3. Slide rod; 4. Connecting block; 5. Lifting sleeve rod; 6. Electric telescopic rod; 7. Copper tube positioning ring; 8. Precision drive assembly; 81. Servo motor; 82. Ball screw; 83. Ball nut; 84. Guide groove; 85. Guide slider; 9. Controller; 10. Support top plate; 11. Support ring; 12. Copper tube positioning area; 13. Adjustable steel rod positioning block; 14. Elastic element; 15. Rotating element. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] like Figures 1-3 As shown in the figure, an explosive composite docking device for thick copper tubes and stainless steel rods provided in this embodiment of the invention includes a copper tube positioning ring 7, a support ring 11 connected inside the copper tube positioning ring 7, and a plurality of rotating parts 15 installed at one end of the support ring 11. A copper tube positioning area 12 is formed between the copper tube positioning ring 7 and the support ring 11, and the width of the copper tube positioning area 12 is adapted to the wall thickness of the thick copper tube to be processed. The rotating parts 15 are hinges or unidirectional rotating connection structures of the shaft type.

[0028] An adjustable steel rod positioning block 13 is rotatably connected to the outer side of the rotating part 15. An elastic element 14 is installed on the inner side of the adjustable steel rod positioning block 13 and the support ring 11. The elastic element 14 is a spring or a torsion spring.

[0029] The end of the support ring 11 away from the rotating part 15 is connected to the support top plate 10, and the support top plate 10 and the support ring 11 are jointly provided with several sets of precision drive components 8. The precision drive components 8 are used to drive the adjustable steel rod positioning block 13 to rotate through the rotating part 15.

[0030] The precision drive assembly 8 includes a ball nut 83, which is slidably connected inside the support ring 11. A servo motor 81 is mounted on the surface of the support top plate 10, and a ball screw 82 is mounted on the output end of the servo motor 81. The ball screw 82 is engaged inside the ball nut 83. The thickness of the ball nut 83 is the same as the width between the top of the adjustable steel rod positioning block 13 and the support ring 11 in the initial state. A controller 9 is mounted on the surface of the support top plate 10, and the controller 9 is electrically connected to the servo motor 81.

[0031] In one embodiment of the present invention, the process of using the explosive composite docking device for thick copper tube and stainless steel rod is as follows:

[0032] When coaxial positioning of thick copper tubes and stainless steel bars is required, the thick copper tubes and stainless steel bars are first placed together on a horizontal pad to ensure that their axes are approximately coincident. Since the inner diameter and wall thickness tolerances of the thick copper tubes to be processed are small and the dimensions are relatively stable under the same process conditions, while the outer diameter of the stainless steel bars varies slightly, this device is mainly used to precisely adjust the positioning to address the positioning difficulties caused by the variation in the outer diameter of the steel bars.

[0033] During operation, the copper tube positioning ring 7 is moved above the pad, so that it is coaxially aligned with the thick copper tube and the stainless steel rod, and the thick copper tube is embedded in the copper tube positioning area 12. Then, the precision drive assembly 8 is activated via the controller 9, driving the servo motor 81 to rotate the ball screw 82, thereby causing the ball nut 83 to slide axially along the internal guide groove 84 of the support ring 11. When the ball nut 83 moves downwards, it contacts the upper end of the adjustable steel rod positioning block 13, pushing the positioning block 13 to rotate unidirectionally around the rotating component 15.

[0034] The adjustable steel bar positioning block 13 has a V-shaped structure with an inner included angle greater than 90°. Multiple adjustable steel bar positioning blocks 13 are evenly distributed around the support ring 11. When the servo motor 81 drives the ball nut 83 to move downward, several positioning blocks 13 simultaneously tilt and rotate inward under the action of the ball nut 83, so that the inner surfaces of each positioning block 13 gradually move closer together and form a positioning ring that matches the outer diameter of the stainless steel bar, thereby achieving self-adaptive holding and coaxial positioning of the stainless steel bar. When the servo motor rotates in the opposite direction, the ball nut 83 retracts, and the adjustable steel bar positioning block 13 returns to its initial position under the reset action of the elastic element 14 (torsion spring or compression spring), so as to replace or adjust steel bars of different specifications.

[0035] Through the aforementioned structural design and automatic drive control, this device can achieve rapid, precise, and synchronous adjustment and positioning of steel bars with different outer diameters without the need for manual measurement and repeated adjustments. Multiple V-shaped positioning blocks 13, driven by electricity, can form a highly consistent holding structure, ensuring that the axes of the thick copper tube and the stainless steel bar remain coaxial within a very small error range, providing a stable geometric accuracy basis for the subsequent explosive composite process.

[0036] The technical effects of the embodiments of the present invention are as follows:

[0037] 1. Automated precision alignment: Through servo motor drive and ball screw transmission system, the tilt angle of positioning block 13 can be controlled and synchronously adjusted to automatically adapt to stainless steel bars of different diameters.

[0038] 2. High coaxiality and repeatability: The V-shaped positioning structure and multi-point distributed clamping design enable the copper tube and steel rod to be uniformly wrapped under multi-point support, which significantly improves coaxiality and repeatability.

[0039] 3. Stable structure and rapid response: The unidirectional rotating component 15 provides a stable rotation fulcrum, and the reset characteristics of the elastic component 14 enable the device to have a rapid reset capability, shortening the adjustment time.

[0040] 4. Strong applicability and high reliability: It is suitable for use in the pre-explosive composite positioning operation of steel bars and thick copper tubes of different specifications. It can be widely used in the field of copper-steel dissimilar metal composite manufacturing and has good prospects for industrial application.

[0041] In this embodiment, the outer surface of the adjustable steel rod positioning block 13 is configured as an arc-shaped structure. This arc-shaped structure enables the positioning block 13 to form continuous contact with the inner wall of the support ring 11 when it rotates around the rotating member 15, thereby making the movement trajectory of the positioning block smoother and avoiding jamming or wear caused by planar contact.

[0042] In addition, the arc-shaped outer surface can effectively disperse the contact stress when the positioning block is subjected to force, improve the fit and guiding accuracy between the positioning block and the support ring, and ensure that multiple positioning blocks 13 maintain a consistent rotation radius during tilting movement, thus ensuring the coaxiality and circumferential uniformity of the steel rod during positioning.

[0043] This structural design reduces mechanical friction resistance and improves the wear resistance and service life of the device during repeated adjustments.

[0044] In this embodiment, a guide groove 84 is provided inside the support ring 11, and a guide slider 85 is installed on the surface of the ball nut 83. The ball nut 83 is slidably connected inside the support ring 11 through the cooperation of the guide slider 85 and the guide groove 84.

[0045] The guide groove 84 and guide slider 85 are designed to restrict the movement direction of the ball nut 83, prevent it from deflecting or wobbling during transmission, and ensure that the ball nut 83 slides smoothly along the axial direction of the support ring 11, thereby improving transmission accuracy and structural stability.

[0046] In this embodiment, a plurality of lifting sleeve rods 5 are connected to the outer side of the copper tube positioning ring 7, and a sliding rod 3 is slidably connected inside the lifting sleeve rod 5. One end of the sliding rod 3 is connected to a movable base 1, and a self-locking universal wheel 2 is installed on the surface of the movable base 1. An electric telescopic rod 6 is installed on the surface of the movable base 1, and a connecting block 4 is connected to one end of the electric telescopic rod 6. The outer side of the connecting block 4 is connected to the outer side of the lifting sleeve rod 5.

[0047] The overall height adjustment of the copper tube positioning ring 7 is achieved by setting up a cooperative structure between the lifting sleeve 5 and the sliding rod 3; the electric telescopic rod 6 is used to drive the connecting block 4 to raise and lower the lifting sleeve 5, thereby facilitating the adjustment of the working height and positioning position of the device according to different working conditions. The self-locking universal wheels 2 enable the device to steer flexibly during movement and positioning, and to remain stable after locking, facilitating the precise positioning and fixation of the device.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for explosive composite docking of a thick copper tube and a stainless steel rod, comprising a copper tube positioning ring (7), characterized in that, The copper tube positioning ring (7) is internally connected to a support ring (11), and a number of rotating parts (15) are installed at one end of the support ring (11), and an adjustable steel rod positioning block (13) is rotatably connected to the outside of the rotating parts (15). An elastic element (14) is installed on the inner side of the adjustable steel rod positioning block (13) and the support ring (11). The support ring (11) is connected to a support top plate (10) at the end away from the rotating part (15), and a number of precision drive components (8) are provided on the support top plate (10) and the support ring (11). The precision drive components (8) are used to drive the adjustable steel rod positioning block (13) to rotate through the rotating part (15). The precision drive assembly (8) includes a ball nut (83), which is slidably connected inside the support ring (11). A servo motor (81) is mounted on the surface of the support top plate (10), and a ball screw (82) is mounted on the output end of the servo motor (81). The ball screw (82) is meshed inside the ball nut (83). The thickness of the ball nut (83) is the same as the width between the top of the adjustable steel rod positioning block (13) and the support ring (11) in the initial state. A guide groove (84) is provided inside the support ring (11), and a guide slider (85) is mounted on the surface of the ball nut (83). The ball nut (83) is slidably connected inside the support ring (11) through the cooperation of the guide slider (85) and the guide groove (84). A copper tube positioning area (12) is formed between the copper tube positioning ring (7) and the support ring (11). The width of the copper tube positioning area is adapted to the wall thickness of the thick copper tube to be processed; the adjustable steel rod positioning block (13) has a V-shaped structure with an inner included angle greater than 90°, and multiple adjustable steel rod positioning blocks (13) are evenly distributed around the support ring (11); when the ball nut (83) moves, it contacts the upper end of the adjustable steel rod positioning block (13) and pushes the adjustable steel rod positioning block (13) to rotate around the rotating part (15), so that several adjustable steel rod positioning blocks (13) tilt and rotate inward at the same time, and the inner side of each adjustable steel rod positioning block (13) gradually approaches and forms a positioning ring that matches the outer diameter of the stainless steel rod.

2. The explosive composite docking device for thick copper tube and stainless steel rod according to claim 1, characterized in that, The outer surface of the adjustable steel rod positioning block (13) is set as an arc structure.

3. The explosive composite docking device for thick copper tube and stainless steel rod according to claim 1, characterized in that, The elastic element (14) is a spring.

4. The explosive composite docking device for thick copper tube and stainless steel rod according to claim 1, characterized in that, The rotating component (15) is a hinge.

5. The explosive composite docking device for thick copper tube and stainless steel rod according to claim 1, characterized in that, A controller (9) is mounted on the surface of the supporting top plate (10).

6. The explosive composite docking device for thick copper tube and stainless steel rod according to claim 1, characterized in that, The outer side of the copper tube positioning ring (7) is connected to several lifting sleeve rods (5), and the inside of the lifting sleeve rod (5) is slidably connected to a slide rod (3). One end of the slide rod (3) is connected to a movable base (1), and the surface of the movable base (1) is equipped with a self-locking universal wheel (2).

7. The explosive composite docking device for thick copper tube and stainless steel rod according to claim 6, characterized in that, An electric telescopic rod (6) is installed on the surface of the movable base (1), and one end of the electric telescopic rod (6) is connected to a connecting block (4). The outer side of the connecting block (4) is connected to the outer side of the lifting sleeve rod (5).

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