A calibration device for large-diameter precision spiral coiled parts of thin-walled copper tubes

Abstract

This invention discloses a calibration device for a large-diameter precision spiral coiled component of a thin-walled copper tube, comprising: a base, support columns, a pressure ring, a first locking assembly, and a second locking assembly. Multiple support columns are evenly spaced on the same circumference centered on the base. The coiled component to be calibrated is placed within the space enclosed by the multiple columns and the base. The first locking assembly is positioned on top of the coiled component, clamping and pressing the opposing support columns against the top of the coiled component. The pressure ring is positioned above the first locking assembly, and the second locking assembly is positioned on top of the pressure ring, clamping and pressing the opposing support columns against the top of the pressure ring. Thus, the first and second locking assemblies circumferentially tighten the support columns and axially press the coiled component from the top. This invention features a simple structure, low investment, and convenient operation, meeting assembly requirements and providing technical support for high-precision automatic measurement.

Description

Technical Field

[0001] This invention belongs to the field of mechanical manufacturing technology and relates to a calibration device for a large-diameter precision spiral coiled part of a thin-walled copper tube. Background Technology

[0002] In high-energy laser energy testing, large-diameter thin-walled copper tubes need to be spirally coiled and bent into a large-sized water flow channel. The ratio of the outer diameter (D) to the wall thickness (H) of the large-diameter thin-walled copper tube is greater than 20, and the outer diameter of the formed part after spiral coiling and bending is greater than 600mm, with a length of approximately 300mm. Due to the large size of the bent part, with its thick and thin tube, the positional and shape accuracy of each bending part is difficult to control. Therefore, it is difficult for the bent part to meet the technical requirements, thus making it difficult to meet assembly requirements and affecting the measurement results. Currently available bending machines cannot guarantee the shape and size of large parts after bending large-diameter thin-walled copper tubes. In actual production, a dedicated calibration device needs to be designed to calibrate the part before assembly. To reduce equipment investment, the designed calibration device needs to be simple in structure, low in cost, and easy to operate. Summary of the Invention

[0003] (I) Purpose of the Invention

[0004] The purpose of this invention is to address the deficiencies in the existing technology by providing a calibration device for large-diameter precision spiral coiled thin-walled copper tubes. This device calibrates the large-diameter precision spiral coiled thin-walled copper tubes to ensure they have a regular shape, high dimensional accuracy, and are easy to assemble. Furthermore, this calibration device has a simple structure, low cost, and is easy to operate.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, the present invention provides a calibration device for a large-diameter precision spiral coiled part of a thin-walled copper tube, comprising: a base 1, a support column 2, a pressure ring 7, a first locking assembly, and a second locking assembly; there are multiple support columns 2, evenly spaced on the same circumference centered on the center of the base 1, and the coiled part to be calibrated is placed in the receiving space enclosed by the multiple columns and the base 1. The first locking assembly is arranged on the top of the coiled part to be calibrated, and the first locking assembly clamps and presses the opposite support column 2 onto the top of the coiled part to be calibrated. The pressure ring 7 is arranged above the first locking assembly, and the second locking assembly is arranged on the top of the pressure ring 7, and the second locking assembly clamps and presses the opposite support column 2 onto the top of the pressure ring 7. Thus, the support column 2 is circumferentially tightened by the first locking assembly and the coiled part is axially pressed from the top.

[0007] The support column 2 consists of 8 columns.

[0008] The first locking assembly includes two locking screws 5 and two locking blocks 4. The two parallel locking screws 5 pass between the four opposing support columns 2, and the locking blocks 4 are installed at both ends. The locking blocks 4 are locked on the outside of the support column 2 and are tightened and fixed by locking nuts.

[0009] The second locking assembly includes a locking screw 6 and two locking blocks 3. The locking screw 6 passes between the other four pillars 2 directly opposite each other, and the locking blocks 3 are installed at both ends respectively. The locking blocks 3 are locked on the outside of the pillars 2 and are tightened and fixed by locking nuts 8.

[0010] The chassis 1 is circular and is used to support the entire device. There are 8 screw holes evenly distributed around the center of the chassis 1, and 8 support columns 2 with threads at the bottom end are connected to the screw holes on the chassis 1.

[0011] The size of the accommodating space formed by the eight pillars 2 is equivalent to the outer diameter of the coiled part.

[0012] The locking screw 5 and the locking screw 6 are arranged crosswise.

[0013] Among them, the locking block 3 and the locking block 4 are tangent to the same circle and are evenly distributed.

[0014] (III) Beneficial Effects

[0015] The above-mentioned technical solution provides a calibration device for large-diameter precision spiral coiled parts of thin-walled copper tubes. It has a simple structure, low investment, and convenient operation. It can calibrate large-diameter precision spiral coiled parts of thin-walled copper tubes so that their shape and size can reach a good technical state, thereby meeting the assembly requirements and providing technical support for high-precision automatic measurement. Attached Figure Description

[0016] Figure 1 This is a front view of the calibration device according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Top view. Detailed Implementation

[0018] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0019] like Figure 1 and Figure 2As shown, the thin-walled copper tube large-diameter precision spiral winding shaping device of this embodiment includes: a base 1, a support column 2, a pressure ring 7, a first locking component, and a second locking component; there are multiple support columns 2, which are evenly spaced on the same circumference centered on the center of the base. The winding part to be shaped is placed in the receiving space enclosed by the multiple columns and the base 1. The first locking component is arranged on the top of the winding part to be shaped. The first locking component clamps and presses the opposite support column 2 on the top of the winding part to be shaped. The pressure ring 7 is arranged above the first locking component. The second locking component is arranged on the top of the pressure ring 7. The second locking component clamps and presses the opposite support column 2 on the top of the pressure ring 7. Thus, the support column 2 is circumferentially tightened by the first locking component and the winding part is axially pressed from the top.

[0020] In this embodiment, eight support pillars are provided for pillar 2.

[0021] The first locking assembly includes two locking screws 5 and two locking blocks 4. The two parallel locking screws 5 pass between the four opposing support columns 2, and locking blocks 4 are installed at both ends. The locking blocks 4 are locked on the outside of the support column 2 and are tightened and fixed by locking nuts.

[0022] The second locking assembly includes a locking screw 26 and two locking blocks 13. The locking screw 26 passes between the other four support pillars 2 directly opposite each other, and the locking blocks 13 are installed at both ends respectively. The locking blocks 13 are locked on the outside of the support pillar 2 and are tightened and fixed by the locking nut 8.

[0023] The base 1 is circular and is used to support the entire device. There are 8 screw holes evenly distributed around the center of the base 1. 8 support columns 2 with threads at the bottom end are connected to the screw holes on the base. The space formed by the 8 support columns can hold a cylinder, and its size is comparable to the outer diameter of the large-diameter precision spiral coil of the thin-walled copper tube.

[0024] Locking screw 5 and locking screw 6 are placed crosswise and used in conjunction with pressure ring 7 to control the length dimension of the large-diameter precision spiral coil of thin-walled copper tube.

[0025] Two sets of locking blocks 3 and 4 are evenly distributed in a circle. They generate preload through locking nuts 8, which indirectly compress the 8 support pillars 2, thereby limiting the outer diameter dimension of the large-diameter precision spiral coil of thin-walled copper tube.

[0026] When using the calibration device of this embodiment, eight support columns 2 are respectively installed on the chassis 1. The thin-walled copper tube large-diameter precision spiral coiled part 9 to be calibrated is placed in the space formed by the eight support columns. Two locking screws 5 and two locking blocks 4 are installed in sequence and tightened with two locking nuts 8. A pressure ring 7 is placed on the locking screw 5. Then, locking screws 6 and two locking blocks 3 are installed in sequence and tightened with locking nuts 8. By adjusting the preload of each locking nut, the locking blocks 3 and 4 squeeze the support column 2 and locking screw 5, thereby indirectly squeezing the thin-walled copper tube large-diameter precision spiral coiled part 9 to be calibrated. This can effectively control the shape and size of the thin-walled copper tube large-diameter precision spiral coiled part 9 to be calibrated, so that it reaches a good technical state, thereby achieving the calibration goal and meeting the assembly requirements.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for calibrating large-diameter precision spiral coiled parts of thin-walled copper tubes, characterized in that, include: Chassis (1), support column (2), pressure ring (7), first locking assembly and second locking assembly; There are multiple support columns (2), which are evenly spaced on the same circumference centered on the center of the chassis. The coiled part to be calibrated is placed in the accommodating space enclosed by the multiple support columns (2) and the chassis (1). A first locking component is arranged on the top of the coiled part to be calibrated. The first locking component clamps and presses the opposite support column (2) on the top of the coiled part to be calibrated. A pressure ring (7) is arranged above the first locking component. A second locking component is arranged on the top of the pressure ring (7). The second locking component clamps and presses the opposite support column (2) on the top of the pressure ring (7). Thus, the support column (2) is circumferentially tightened by the first locking component and the second locking component, and the coiled part is axially pressed from the top. The support column (2) is provided with 8 columns; The first locking assembly includes two locking screws (5) and two locking blocks (4). The two parallel locking screws (5) pass through the four opposing pillars (2), and locking blocks (4) are installed at both ends. The locking blocks (4) are locked on the outside of the pillars (2) and are tightened by locking nuts. The second locking assembly includes a locking screw 2 (6) and two locking blocks 1 (3). The locking screw 2 (6) passes between the other four pillars (2) directly opposite each other, and the locking blocks 1 (3) are installed at both ends respectively. The locking blocks 1 (3) are stuck on the outside of the pillars (2) and are tightened and fixed by locking nuts (8). The locking screw one (5) and locking screw two (6) are placed crosswise; The locking block one (3) and locking block two (4) are tangent to the same circle and are evenly distributed.

2. The device for straightening large-diameter precision spiral coiled parts of thin-walled copper tubes as described in claim 1, characterized in that, The chassis (1) is circular and is used to support the entire device. There are 8 screw holes evenly distributed around the center of the chassis (1). 8 support columns (2) with threads at the bottom end are connected to the screw holes on the chassis (1) respectively.

3. The device for straightening large-diameter precision spiral coiled parts of thin-walled copper tubes as described in claim 2, characterized in that, The size of the accommodating space enclosed by the 8 pillars (2) is comparable to the outer diameter of the coiled part.

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