Hidden crack prevention copper pipe bending die

Abstract

The utility model discloses an anti-dark-crack copper pipe bending die, which belongs to the technical field of copper pipe bending and comprises an operating table, supporting plates are arranged on two sides of the upper end of the operating table, a top plate is arranged at the upper ends of the supporting plates, a hydraulic rod is arranged at the upper end of the top plate, a pressing plate is arranged at the output end of the hydraulic rod, and a stamping block is arranged on the lower side of the pressing plate. According to the copper pipe bending device, the limiting assembly is arranged, after a copper pipe is placed on the two installation plates, the two sides of the copper pipe enter the folded plates, the double-shaft lead screw is rotated to drive the two sliding seats to be close to each other, the copper pipe is pressed by the pressing plate, and therefore the copper pipe can be bent, and the copper pipe can be bent. The two sliding seats drive the limiting plates to move through the connecting frame till the side edges of the limiting plates are tangent to the side edges of the copper pipe, the two limiting plates can limit and fix the copper pipe, the copper pipe needing to be bent can be limited by arranging the limiting assembly, and the copper pipe is prevented from moving when the copper pipe is bent.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper tube bending, and particularly relates to a copper tube bending die for preventing hidden cracks. Background Technique

[0002] Copper tubes, also known as red copper tubes, are a type of non-ferrous metal tubes and are seamless tubes produced by pressing and drawing. Copper tubes have the characteristics of being strong and corrosion-resistant, and thus have become the choice for modern contractors in the installation of tap water pipes, heating, and refrigeration pipes in all residential commercial housing.

[0003] Chinese Patent Application No. 2021222803262 discloses a profile bending die for preventing fracture, which includes a base and an operating table. A top plate is arranged on the top of the operating table through a support plate, and a stamping component is arranged on the top plate. Support rods are arranged at both ends of the top of the operating table, and a mounting plate is arranged at the top of the support rods; an inclined plate is arranged on one side of the two mounting plates close to each other, and a moving component is arranged inside the operating table. An adjusting component for adjusting the inclination angle of the inclined plate is arranged on one side of the support rod; the stamping component includes a hydraulic rod arranged on the top plate, the output end of the hydraulic rod at the bottom is connected with a pressure plate, a plurality of springs are evenly arranged at the bottom of the pressure plate, and a stamping block is connected to one end of the spring away from the pressure plate. By setting the moving component, it is convenient to adjust the distance between the two inclined plates according to the size of the profile and the required bending length, and the practicability is strong.

[0004] The above-mentioned disclosed patent does not have a limiting function and cannot limit the copper tube to be bent. When bending the copper tube, the copper tube is prone to displacement, which affects the bending quality of the copper tube. At the same time, the original device is not convenient for disassembling and replacing the stamping block, and the wear of the stamping block during long-term use affects the subsequent use quality. Summary of the Utility Model

[0005] In order to solve the problems raised in the above background technique, the utility model provides a copper tube bending die for preventing hidden cracks, which has the characteristic of being able to limit the copper tube to be bent.

[0006] To achieve the above object, the utility model provides the following technical solution: A copper tube bending die for preventing hidden cracks, which includes an operating table. Support plates are arranged on both sides of the upper end of the operating table, a top plate is arranged at the upper end of the support plates, a hydraulic rod is arranged at the upper end of the top plate, the output end of the hydraulic rod is provided with a pressure plate, a stamping block is arranged on the lower side of the pressure plate, a spring is arranged between the stamping block and the pressure plate, mounting plates are arranged on both sides of the upper end of the operating table, an adjusting mechanism is arranged between the mounting plate and the operating table, one end of the mounting plate is rotatably connected with an inclined plate, a telescopic rod is arranged between the inclined plate and the adjusting mechanism, and limiting components are arranged on both sides of the upper end of the operating table.

[0007] Preferably, the limiting component includes a folding plate, a support rod, a fixing plate, a double-axis screw rod, a sliding seat, a limiting plate, a connecting frame and a support component. Among them, folding plates are arranged at positions corresponding to the mounting plates on both sides of the upper end of the operating table. Support rods are arranged on both sides of the lower ends of the folding plates. Two fixing plates are arranged on the lower side of one end of the folding plate. A double-axis screw rod is arranged between the two fixing plates. Sliding seats are threadedly connected to both sides of the surface of the double-axis screw rod. Limiting plates are arranged at positions corresponding to the sliding seats in the folding plates. The limiting plates and the sliding seats are connected by a connecting frame. A support component is arranged on the lower side of one end of the folding plate.

[0008] Preferably, the support component includes fixed ears, a rotating shaft, a support roller and a rubber pad. Among them, two fixed ears are arranged on the lower side of one end of the folding plate. A support roller is arranged between the two fixed ears. The support roller and the fixed ears are connected by a rotating shaft. A rubber pad is arranged on the surface of the support roller.

[0009] Preferably, the two sliding seats are threadedly connected to the double-axis screw rod in opposite directions. The sides of the sliding seats are closely attached to the sides of the folding plate. A bearing rotating seat is arranged between the double-axis screw rod and the fixing plate.

[0010] Preferably, a fixing seat is arranged at the lower end of the spring. A damping rod is arranged inside the spring between the fixing seat and the pressing plate. Insertion plates are arranged on both sides of the upper end of the stamping block. Slots corresponding to the insertion plates are arranged on both sides of the lower end of the fixing seat. The insertion plates and the fixing seat are connected by fixing bolts. Fixing holes corresponding to the fixing bolts are arranged in the insertion plates.

[0011] Preferably, both between the damping rod and the pressing plate and between the damping rod and the fixing seat are welded by pressure welding. Through holes corresponding to the fixing bolts are arranged at both ends of the fixing seat.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By setting the limiting component in the present utility model, after placing the copper tube on the two mounting plates, both sides of the copper tube enter the folding plate. Rotating the double-axis screw rod drives the two sliding seats to approach each other. The two sliding seats drive the limiting plate to move through the connecting frame until the side of the limiting plate is tangent to the side of the copper tube. The two limiting plates can limit and fix the copper tube. By setting the limiting component, the copper tube to be bent can be limited to prevent the copper tube from displacing when being bent.

[0014] 2. By setting the fixing seat in the present utility model, when installing the stamping block, the insertion plates on both sides of the upper end of the stamping block are inserted into the slots at the lower end of the fixing seat, and then the fixing bolts are screwed into the fixing holes of the insertion plates to achieve the effect of limiting and fixing the insertion plates and the stamping block. By setting the fixing seat, it is convenient to disassemble, install and replace the stamping block. When the stamping block bends the copper tube, the spring is compressed, and at the same time, the damping rod is compressed. The setting of the damping rod makes the buffering effect of the stamping block better, and at the same time, the stamping block is not easy to shake. Description of the Drawings

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a perspective view of the limit component of the present utility model;

[0017] Figure 3 is a perspective view when the stamping block of the present utility model is installed;

[0018] In the figure: 1, operating table; 2, limit component; 21, folding plate; 22, support rod; 23, fixing plate; 24, double-axis lead screw; 25, sliding seat; 26, limit plate; 27, connecting frame; 28, support component; 281, fixing ear; 282, rotating shaft; 283, support roller; 284, rubber pad; 3, support plate; 4, top plate; 5, pressing plate; 6, hydraulic rod; 7, fixing seat; 8, stamping block; 9, mounting plate; 10, adjusting mechanism; 11, inclined plate; 12, telescopic rod; 13, spring; 14, damping rod; 15, inserting plate; 16, inserting slot; 17, fixing bolt; 18, fixing hole. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Please refer to Figures 1-3 , the present utility model provides the following technical solutions: A copper tube bending die for preventing dark cracks, including an operating table 1, support plates 3 are arranged on both sides of the upper end of the operating table 1, a top plate 4 is arranged on the upper end of the support plates 3, a hydraulic rod 6 is arranged on the upper end of the top plate 4, a pressing plate 5 is arranged at the output end of the hydraulic rod 6, a spring 13 is arranged between the pressing plate 5 and the stamping block 8, mounting plates 9 are arranged on both sides of the upper end of the operating table 1, an adjusting mechanism 10 is arranged between the mounting plate 9 and the operating table 1, one end of the mounting plate 9 is rotatably connected to an inclined plate 11, a telescopic rod 12 is arranged between the inclined plate 11 and the adjusting mechanism 10, and limit components 2 are arranged on both sides of the upper end of the operating table 1.

[0022] Specifically, the limiting component 2 includes a folding plate 21, a support rod 22, a fixing plate 23, a double-axis lead screw 24, a sliding seat 25, a limiting plate 26, a connecting frame 27 and a support component 28. Among them, folding plates 21 are arranged at positions corresponding to the mounting plates 9 on both sides of the upper end of the operating table 1. Support rods 22 are arranged on both sides of the lower ends of the folding plates 21. Two fixing plates 23 are arranged on the lower side of one end of the folding plate 21. A double-axis lead screw 24 is arranged between the two fixing plates 23. Sliding seats 25 are threadedly connected to both sides of the surface of the double-axis lead screw 24. Limiting plates 26 are arranged at positions corresponding to the sliding seats 25 in the folding plates 21. The limiting plates 26 and the sliding seats 25 are connected by a connecting frame 27. A support component 28 is arranged on the lower side of one end of the folding plate 21.

[0023] By adopting the above technical solution, after the copper tube is placed on the two mounting plates 9, both sides of the copper tube enter the folding plates 21. Rotating the double-axis lead screw 24 drives the two sliding seats 25 to approach each other. The two sliding seats 25 drive the limiting plates 26 to move through the connecting frame 27 until the side of the limiting plate 26 is tangent to the side of the copper tube. The two limiting plates 26 can limit and fix the copper tube. By setting the limiting component 2, the copper tube to be bent can be limited to prevent the copper tube from shifting when it is bent.

[0024] Specifically, the support component 28 includes fixed ears 281, a rotating shaft 282, a support roller 283 and a rubber pad 284. Among them, two fixed ears 281 are arranged on the lower side of one end of the folding plate 21. A support roller 283 is arranged between the two fixed ears 281. The support roller 283 and the fixed ears 281 are connected by a rotating shaft 282. A rubber pad 284 is arranged on the surface of the support roller 283.

[0025] By adopting the above technical solution, the support roller 283 can rotate on the fixed ears 281 through the rotating shaft 282. The support roller 283 can support the copper tube to prevent the side of the folding plate 21 from scratching the surface of the copper tube. At the same time, a rubber pad 284 is arranged on the surface of the support roller 283 to reduce the wear between the copper tube and the support roller 283.

[0026] Specifically, the two sliding seats 25 are threadedly connected to the double-axis lead screw 24 in opposite directions. The sides of the sliding seats 25 are closely attached to the sides of the folding plates 21. A bearing rotating seat is arranged between the double-axis lead screw 24 and the fixing plate 23.

[0027] By adopting the above technical solution, the rotation of the double-axis lead screw 24 can drive the two sliding seats 25 to move towards each other, and the sliding seats 25 will not rotate with the double-axis lead screw 24.

[0028] When this embodiment is in use, when the anti-cracking copper pipe bending die is in use, the device is installed at a suitable position. The two mounting plates 9 are adjusted to a suitable distance through the adjusting mechanism 10. The telescopic rod 12 pushes the inclined plate 11 to a suitable angle. The copper pipe is placed on the two mounting plates 9. The hydraulic rod 6 is activated to push the stamping block 8 on the lower side of the pressing plate 5 to move and bend the copper pipe. At the same time, the spring 13 is provided to play a buffering and protective role. By setting the limiting component 2, after the copper pipe is placed on the two mounting plates 9, both sides of the copper pipe enter the folding plate 21. The double-shaft screw rod 24 is rotated to drive the two sliding seats 25 to approach each other. The two sliding seats 25 drive the limiting plate 26 to move through the connecting frame 27 until the side of the limiting plate 26 is tangent to the side of the copper pipe. The two limiting plates 26 can limit and fix the copper pipe. By setting the limiting component 2, the copper pipe to be bent can be limited to prevent the copper pipe from shifting when it is bent. By setting the supporting component 28, the supporting roller 283 can rotate on the fixed ear 281 through the rotating shaft 282. The supporting roller 283 can support the copper pipe to prevent the side of the folding plate 21 from scratching the surface of the copper pipe. At the same time, a rubber pad 284 is provided on the surface of the supporting roller 283 to reduce the wear between the copper pipe and the supporting roller

[0029] Embodiment 2

[0030] The difference between this embodiment and Embodiment 1 is that: a fixed seat 7 is provided at the lower end of the spring 13. A damping rod 14 is provided inside the spring 13 between the fixed seat 7 and the pressing plate 5. Insert plates 15 are provided on both sides of the upper end of the stamping block 8. Slots 16 corresponding to the insert plates 15 are provided on both sides of the lower end of the fixed seat 7. The insert plates 15 and the fixed seat 7 are connected by fixing bolts 17. Fixing holes 18 corresponding to the fixing bolts 17 are provided in the insert plates 15.

[0031] By adopting the above technical solution, when installing the stamping block 8, the insert plates 15 on both sides of the upper end of the stamping block 8 are inserted into the slots 16 at the lower end of the fixed seat 7, and then the fixing bolts 17 are screwed into the fixing holes 18 of the insert plates 15 to achieve the effect of limiting and fixing the insert plates 15 and the stamping block 8. By providing the fixed seat 7, it is convenient to disassemble, install and replace the stamping block 8. When the stamping block 8 bends the copper pipe, the spring 13 is compressed, and at the same time, the damping rod 14 is compressed. The setting of the damping rod 14 makes the buffering effect of the stamping block 8 better, and at the same time, the stamping block 8 is not prone to shaking.

[0032] Specifically, the damping rod 14 is welded to the pressing plate 5 and the fixed seat 7 by resistance welding. Through holes corresponding to the fixing bolts 17 are provided at both ends of the fixed seat 7.

[0033] By adopting the above technical solution, resistance welding makes the connection between the damping rod 14 and the pressing plate 5 and between the damping rod 14 and the fixed seat 7 more firm. The fixing bolts 17 can pass through the fixed seat 7 and be screwed into the fixing holes 18 of the insert plates

[0034] When this embodiment is in use, by setting the fixed seat 7, when installing the stamping block 8, the insertion plates 15 on both sides of the upper end of the stamping block 8 are inserted into the slots 16 at the lower end of the fixed seat 7, and then the fixing bolts 17 are screwed into the fixing holes 18 of the insertion plates 15 to achieve the effect of limiting and fixing the insertion plates 15 and the stamping block 8. By setting the fixed seat 7, it is convenient to disassemble, install and replace the stamping block 8. When the stamping block 8 bends the copper tube, the spring 13 is compressed, and at the same time, the damping rod 14 is compressed. The setting of the damping rod 14 makes the buffering effect of the stamping block 8 better, and at the same time, the stamping block 8 is not easy to shake.

[0035] In this utility model, the damping rod 14 is an existing publicly disclosed technology, and the selected model is SQS.

[0036] In this utility model, the structures and working principles of the operating table 1, the support plate 3, the top plate 4, the pressing plate 5, the hydraulic rod 6, the stamping block 8, the mounting plate 9, the adjusting mechanism 10, the inclined plate 11, the telescopic rod 12 and the spring 13 have been disclosed in a fracture-proof profile bending die with the Chinese patent application number 2021222803262. Its working principle is to adjust the two mounting plates 9 to a suitable distance through the adjusting mechanism 10, push the inclined plate 11 to a suitable angle by the telescopic rod 12, place the copper tube on the two mounting plates 9, and start the hydraulic rod 6 to push the stamping block 8 under the pressing plate 5 to move to bend the copper tube. At the same time, the setting of the spring 13 plays a role in buffering and protecting.

[0037] Working principle and usage process of the utility model: When the anti-dark crack copper pipe bending die is in use, the device is installed at a suitable position. The distance between the two mounting plates 9 is adjusted to a suitable distance through the adjusting mechanism 10. The telescopic rod 12 pushes the inclined plate 11 to a suitable angle. The copper pipe is placed on the two mounting plates 9. The hydraulic rod 6 is activated to push the stamping block 8 on the lower side of the pressing plate 5 to move for bending the copper pipe. Meanwhile, the spring 13 is provided to play a buffering and protecting role. By setting the limiting component 2, after the copper pipe is placed on the two mounting plates 9, both sides of the copper pipe enter the folding plates 21. The double-axis lead screw 24 is rotated to drive the two sliding seats 25 to approach each other. The two sliding seats 25 drive the limiting plate 26 to move through the connecting frame 27 until the side of the limiting plate 26 is tangent to the side of the copper pipe. The two limiting plates 26 can limit and fix the copper pipe. By setting the limiting component 2, the copper pipe to be bent can be limited to prevent the copper pipe from shifting during bending. By setting the supporting component 28, the supporting roller 283 can rotate on the fixed ear 281 through the rotating shaft 282. The supporting roller 283 can support the copper pipe to prevent the side of the folding plate 21 from scratching the surface of the copper pipe. Meanwhile, a rubber pad 284 is provided on the surface of the supporting roller 283 to reduce the wear between the copper pipe and the supporting roller 283. By setting the fixed seat 7, when the stamping block 8 is installed, the insertion plates 15 on both sides of the upper end of the stamping block 8 are inserted into the slots 16 at the lower end of the fixed seat 7. Then, the fixing bolts 17 are screwed into the fixing holes 18 of the insertion plates 15 to achieve the effect of limiting and fixing the insertion plates 15 and the stamping block 8. By setting the fixed seat 7, it is convenient to disassemble, install and replace the stamping block 8. When the stamping block 8 bends the copper pipe, the spring 13 is compressed. Meanwhile, the damping rod 14 is compressed. The setting of the damping rod 14 makes the buffering effect of the stamping block 8 better, and at the same time, the stamping block 8 is not prone to shaking.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A copper tube bending die for preventing dark cracks, comprising an operating table, characterized in that: On both sides of the upper end of the operation table, there are support plates. On the upper ends of the support plates, there is a top plate. On the upper end of the top plate, there is a hydraulic rod. At the output end of the hydraulic rod, there is a pressure plate. Below the pressure plate, there is a stamping block. Between the stamping block and the pressure plate, there is a spring. On both sides of the upper end of the operation table, there are mounting plates. Between the mounting plates and the operation table, there is an adjustment mechanism. One end of the mounting plate is rotatably connected to an inclined plate. Between the inclined plate and the adjustment mechanism, there is a telescopic rod. On both sides of the upper end of the operation table, there are limit components.

2. The anti-dark crack copper tube bending die according to claim 1, characterized in that: The limit components include folding plates, support rods, fixed plates, double-shaft screw rods, sliding seats, limit plates, connecting frames, and support components. Among them, folding plates are arranged at positions corresponding to the mounting plates on both sides of the upper end of the operation table. Support rods are arranged on both sides of the lower ends of the folding plates. Two fixed plates are arranged on the lower side of one end of the folding plate. Between the two fixed plates, there is a double-shaft screw rod. On both sides of the surface of the double-shaft screw rod, there are sliding seats threadedly connected. At positions corresponding to the sliding seats in the folding plates, there are limit plates. The limit plates and the sliding seats are connected through connecting frames. On the lower side of one end of the folding plate, there is a support component.

3. The bending die for preventing dark cracks of copper tubes according to claim 2, characterized in that: The support component includes fixed ears, a rotating shaft, a support roller, and a rubber pad. Among them, two fixed ears are arranged on the lower side of one end of the folding plate. Between the two fixed ears, there is a support roller. The support roller and the fixed ears are connected through a rotating shaft. A rubber pad is arranged on the surface of the support roller.

4. The bending die for preventing dark cracks of copper tubes according to claim 2, characterized in that: The two sliding seats are threadedly connected to the double-shaft screw rod in opposite directions. The sides of the sliding seats are closely attached to the sides of the folding plates. Between the double-shaft screw rod and the fixed plates, there is a bearing rotating seat.

5. The bending die for preventing dark cracks of copper tubes according to claim 1, characterized in that: At the lower end of the spring, there is a fixed seat. Inside the spring between the fixed seat and the pressure plate, there is a damping rod. On both sides of the upper end of the stamping block, there are insertion plates. On both sides of the lower end of the fixed seat, there are slots corresponding to the insertion plates. The insertion plates and the fixed seat are connected through fixing bolts. In the insertion plates, there are fixing holes corresponding to the fixing bolts.

6. The anti-dark crack copper tube bending die according to claim 5, characterized in that: The damping rod is welded to the pressure plate and the fixed seat by pressure welding. Through holes corresponding to the fixing bolts are arranged at both ends of the fixed seat.

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