Seamless tube machining and punching mechanism for heat exchanger

Abstract

The invention discloses a seamless tube machining and punching mechanism for a heat exchanger, and belongs to the field of seamless tube machining equipment.The seamless tube machining and punching mechanism comprises a workbench, a moving rod is fixedly connected to the left side of the upper end of the workbench, a drilling machine used for punching is fixedly connected to the upper end of the moving rod, and a limiting assembly is arranged at the upper end of the workbench; the limiting assembly is used for supporting the inner wall of the seamless pipe, a rectangular rod drives a conical block to move, inclined blocks are made to get close to the inner wall of the seamless pipe, the inclined blocks have certain pressure on the seamless pipe, and under the action of the multiple inclined blocks, the seamless pipe can be fully fixed from the interior of the seamless pipe, so that when a drilling machine conducts downward pressing drilling, the inner wall of the seamless pipe is prevented from being damaged. The inclined blocks can provide good supporting force, deformation of seamless pipes caused by a drilling machine during machining can be avoided, the drilling effect is improved, meanwhile, through movement of the multiple inclined blocks, good supporting force can be provided for seamless pipes with different diameters, and the applicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the field of seamless pipe processing, and more specifically, to a seamless pipe processing and punching mechanism for heat exchangers. Background Art

[0002] The seamless pipe for heat exchangers is a kind of pipe widely used in the manufacture of heat exchangers. It has a seamless structure and is manufactured by processes such as hot rolling, cold rolling or cold drawing. The seamless pipe punching mechanism is a special equipment or device for processing holes in seamless steel pipes. Such mechanisms are usually designed to accurately punch holes at specific positions on seamless steel pipes to meet the requirements of heat exchangers, pipe connectors or other industrial applications.

[0003] In the existing punching devices, when punching seamless pipes, the seamless pipes are limited by an externally provided limiting component, and then the drilling machine moves downward to punch the seamless pipes. However, since the thickness of the seamless pipes for heat exchangers is relatively thin, when the drilling machine moves downward, the drill bit will exert a downward pressure on the seamless pipe during rotation, and heat is generated due to the contact between the rotating drill bit and the seamless pipe, making the drilled position prone to deformation, resulting in the drilled position collapsing downward during drilling. In severe cases, it may affect the overall shape of the seamless pipe, and the processing effect is not ideal.

[0004] Therefore, a seamless pipe processing and punching mechanism for heat exchangers is proposed. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a seamless pipe processing and punching mechanism for heat exchangers, which can realize appropriate support inside the seamless pipe through inclined blocks, ensure that the seamless pipe does not deform during processing, and can support seamless pipes with different diameters well.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A seamless pipe processing and punching mechanism for heat exchangers includes a workbench. A moving rod is fixedly connected to the left side of the upper end of the workbench. A drilling machine for punching is fixedly connected to the upper end of the moving rod. A limiting component is arranged on the upper end of the workbench, and the limiting component is used for supporting the inner wall of the seamless pipe; The limiting component includes a support plate fixedly connected to the upper right side of the workbench. A cross bar is fixedly connected to the left side of the support plate. A support block is provided on the left side of the cross bar. The support block is circularly arranged. A rectangular rod is slidably connected inside the cross bar. A motor is fixedly connected to the right side of the support plate. The output end of the motor is fixedly connected to a first threaded rod. The rod wall of the first threaded rod is threadedly connected to the inside of the rectangular rod. A conical block is provided on the left side of the rectangular rod. A first sliding groove is uniformly formed inside the support block. A first slider is slidably connected inside the first sliding groove. A first spring is fixedly connected to one side of the first slider. A slanting block is fixedly connected to the left side of the first slider. The slanting block is slidably connected to the outside of the support block. The slanting blocks are provided in multiple numbers. Circular holes are formed on the opposite sides of the upper and lower two slanting blocks.

[0008] Preferably, the right side of the support block is rotatably connected to the left side of the cross bar. A second threaded rod is fixedly connected to the left side of the rectangular rod. A one-way bearing is threadedly connected to the outside of the second threaded rod. The outer ring of the one-way bearing is connected to the inside of the support block. The left side of the second threaded rod is movably connected to the conical block.

[0009] Preferably, a square rod is slidably connected inside the second threaded rod. The left side of the square rod is fixedly connected to the right side of the conical block. A round block is fixedly connected to the right side of the square rod. A second spring is sleeved on the rod wall of the square rod.

[0010] Preferably, limiting grooves are uniformly formed on the outer side of the left side of the conical block. A limiting block is fixedly connected to one side of the lower end of the slanting block. The outer ring of the one-way bearing is rotatably connected to the inside of the support block. A return spring is fixedly connected to the outer ring of the one-way bearing. One end of the return spring is fixedly connected to the support block.

[0011] Preferably, circular grooves are formed at the upper and lower positions on the left side of the cross bar. A third spring is fixedly connected inside the circular groove. A convex block is fixedly connected to the left side of the third spring. The convex block is slidably arranged inside the circular groove. The left side of the convex block is embedded in the right side of the support block.

[0012] Preferably, a metal block is slidably connected inside the circular hole. Clamping blocks are fixedly connected to both sides of the inner wall of the circular hole.

[0013] Preferably, a vertical rod is slidably connected to the upper left side of the workbench. An arc-shaped block is fixedly connected to the upper end of the vertical rod. A third threaded rod is threadedly connected inside the arc-shaped block. The third threaded rod is rotatably connected to the inside of the workbench. A first bevel gear is fixedly connected to the lower end of the third threaded rod. A turntable is rotatably connected to the left side of the workbench. A second bevel gear meshing with the first bevel gear is fixedly connected to the right side of the turntable.

[0014] Preferably, a second sliding groove is formed at the upper end of the workbench. A second sliding block is slidably connected inside the second sliding groove. A fourth spring is fixedly connected to the right side of the second sliding block. A placing block is provided at the upper end of the second sliding block. A rectangular groove is formed at the lower end of the workbench where the second sliding groove is located. A moving block is slidably connected inside the rectangular groove. A blocking block is fixedly connected to the upper end of the moving block. A fourth threaded rod is rotatably connected inside the rectangular groove. The fourth threaded rod is threadedly connected to the inside of the moving block. A scale is provided at the upper end of the workbench.

[0015] Preferably, a square block is slidably connected to the upper end of the second sliding block. A fifth spring is fixedly connected to the lower end of the square block. The left side of the placing block is inclined. The upper end of the square block is fixedly connected to the lower end of the placing block.

[0016] Preferably, a dirt accumulating box is slidably connected to the left side of the upper end of the workbench. A rubber block is fixedly connected to the left side of the supporting block.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By driving the tapered block to move through the rectangular rod, the inclined block is moved closer to the inner wall of the seamless pipe, and the inclined block has a certain pressure on the seamless pipe. Under the action of multiple inclined blocks, the fixing effect can be fully exerted from the inside of the seamless pipe. In this way, when the drill presses down for drilling, the inclined block can provide good supporting force, which can avoid the deformation of the seamless pipe caused by the drill during processing, improve the drilling effect, and at the same time, through the movement of multiple inclined blocks, good supporting force can be provided for seamless pipes of different diameters, improving the applicability of the device.

[0018] (2) By means of the one-way bearing, the supporting block rotates, and thus the metal chips remaining inside the round hole can be discharged, avoiding the accumulation of metal chips inside the round hole and affecting the next drilling effect, improving the use effect.

[0019] (3) When the tapered block moves to the right, the limiting block is snapped into the limiting groove. Since the right side of the tapered block is a square rod, the tapered block cannot rotate by itself. When the limiting block is snapped into the limiting groove, the inclined block is in a stable state during work and will not shake, improving the stability of drilling.

[0020] (4) The moving distance of the second sliding block is limited by the position of the blocking block. In this way, when processing multiple seamless pipes, only by pushing the seamless pipe to the right, it can reach the position where drilling is required, without the need to measure the position every time drilling is performed, improving the working speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic cross-sectional structure diagram of the present invention; Figure 3 of the present invention Figure 2 Enlarged structure diagram at position A in; Figure 4 of the present invention Figure 2 Enlarged structure diagram at position B in; Figure 5 of the present invention Figure 2 Enlarged structure diagram at position C in; Figure 6 Schematic cross-sectional structure diagram of the support block of the present invention; Figure 7 of the present invention Figure 6 Enlarged structure diagram at position D in; Figure 8 Schematic structure diagram of the conical block of the present invention; Figure 9 Schematic structure diagram of the placement block of the present invention; Figure 10 Schematic structure diagram of the support block of the present invention.

[0022] Explanation of reference numerals in the figure: 1, workbench; 2, arc block; 3, vertical rod; 4, dirt accumulation box; 5, moving rod; 6, drill; 7, support plate; 8, motor; 9, cross bar; 10, support block; 11, scale; 12, rectangular rod; 13, first threaded rod; 14, rubber block; 15, third threaded rod; 16, first bevel gear; 17, second bevel gear; 18, inclined block; 19, clamping block; 20, metal block; 21, first chute; 22, first spring; 23, conical block; 24, limiting groove; 25, first slider; 26, second threaded rod; 27, one-way bearing; 28, return spring; 29, square rod; 30, convex block; 31, circular groove; 32, third spring; 33, circular hole; 34, second chute; 35, rectangular groove; 36, moving block; 37, second spring; 38, stop block; 39, second slider; 40, placement block; 41, square block; 42, fifth spring; 43, limiting block; 44, round block; 45, fourth spring; 46, fourth threaded rod. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-10, A seamless pipe processing and punching mechanism for a heat exchanger, including a workbench 1. On the left side of the upper end of the workbench 1, a moving rod 5 is fixedly connected. The moving rod 5 is a driving device. In the existing device, a drilling machine 6 for punching is fixedly connected to the upper end of the moving rod 5. The moving rod 5 can drive the drilling machine 6 to move up and down, thereby realizing the punching work. A limiting component is arranged on the upper end of the workbench 1, and the limiting component is used to support the inner wall of the seamless pipe; The limiting component includes a support plate 7 fixedly connected to the right side of the upper end of the workbench 1. The support plate 7 is used for supporting. A cross bar 9 is fixedly connected to the left side of the support plate 7. The cross bar 9 has a certain supporting force and is relatively stable, and will not shake during work. A support block 10 is arranged on the left side of the cross bar 9. The support block 10 is circularly arranged. During work, the seamless pipe to be punched is passed through the support block 10 so that the support block 10 is located inside the seamless pipe. A rectangular rod 12 is slidably connected inside the cross bar 9. The rectangular rod 12 can slide left and right inside the cross bar 9. A motor 8 is fixedly connected to the right side of the support plate 7. The motor 8 is a driving device. In the prior art, the output end of the motor 8 is fixedly connected to a first threaded rod 13. The motor 8 drives the first threaded rod 13 to rotate. The rod wall of the first threaded rod 13 is threadedly connected to the inside of the rectangular rod 12. The rotation of the first threaded rod 13 causes the rectangular rod 12 to move. A conical block 23 is arranged on the left side of the rectangular rod 12. The movement of the rectangular rod 12 drives the conical block 23 to move. A first chute 21 is uniformly opened inside the support block 10. A first slider 25 is slidably connected inside the first chute 21. The first slider 25 can move inside the first chute 21. A first spring 22 is fixedly connected to one side of the first slider 25. The first spring 22 enables the first slider 25 to reset after moving. An inclined block 18 is fixedly connected to the left side of the first slider 25. The movement of the inclined block 18 drives the first slider 25 to move. The inclined block 18 is slidably connected to the outside of the support block 10. The inclined block 18 is arranged in multiple numbers. Circular holes 33 are opened on the opposite sides of the upper and lower inclined blocks 18. A dirt collecting box 4 is slidably connected to the left side of the upper end of the workbench 1. The dirt collecting box 4 is used to place the generated debris. A rubber block 14 is fixedly connected to the left side of the support block 10. The rubber block 14 is made of a relatively soft material and can fit on the inner wall of seamless pipes with different inner diameters. When the seamless pipe is taken out after processing, the rubber block 14 can push the sundries on the inner wall of the seamless pipe to the right relative to the seamless pipe, avoiding the impurities generated during drilling from remaining inside the seamless pipe; When working, the seamless pipe to be drilled is passed through the outside of the support block 10 and the cross bar 9 and sleeved on the outside of the cross bar 9 and the support block 10. At this time, the motor 8 works, and the output end of the motor 8 drives the first threaded rod 13 to rotate. The rotation of the first threaded rod 13 causes the rectangular rod 12 to move to the right. The movement of the rectangular rod 12 drives the tapered block 23 to move to the right. When the tapered block 23 moves to the right, it contacts the inclined block 18. The inclined surface of the tapered block 23 contacts the inclined surface of the inclined block 18 and pushes the inclined block 18 to move. The movement of the inclined block 18 drives the first slider 25 to move inside the first chute 21. Multiple inclined blocks 18 move and fit against the inner wall of the seamless pipe. At this time, the moving rod 5 drives the drill 6 to move downward and cooperate with the round hole 33 to drill the seamless pipe. After the drilling is completed, the motor 8 drives the rectangular rod 12 to move to the left, and then the tapered block 23 moves to the left. At this time, the inclined block 18 is reset under the action of the first spring 22 and retracts into the support block 10. In this way, when drilling, the movement of the tapered block 23 is driven by the rectangular rod 12, so that the inclined block 18 approaches the inner wall of the seamless pipe, and the inclined block 18 has a certain pressure on the seamless pipe. Under the action of multiple inclined blocks 18, a sufficient fixing effect can be achieved from the inside of the seamless pipe. In this way, when the drill 6 presses down for drilling, the inclined block 18 can provide good supporting force, which can avoid the deformation of the seamless pipe caused by the drill 6 during processing, improve the drilling effect, and at the same time, through the movement of multiple inclined blocks 18, good supporting force can be provided for seamless pipes of different diameters, improving the applicability of the device.

[0025] As Figure 2-7 shown, the right side of the support block 10 is rotatably connected to the left side of the cross bar 9. The left side of the rectangular rod 12 is fixedly connected with a second threaded rod 26. The left and right movement of the rectangular rod 12 drives the second threaded rod 26 to move. The second threaded rod 26 drives the tapered block 23 to move. The outside of the second threaded rod 26 is threadedly connected with a one-way bearing 27. The one-way bearing 27 is an existing component. The inner ring and the outer ring can rotate relative to each other in one direction, and the inner ring and the outer ring can be locked in the other direction. The outer ring of the one-way bearing 27 is connected to the inside of the support block 10. The left side of the second threaded rod 26 is movably connected with the tapered block 23; When the rectangular rod 12 moves to the right, it drives the second threaded rod 26 to move to the right. The movement of the second threaded rod 26 causes the inner ring of the one-way bearing 27 to rotate. When the second threaded rod 26 moves to the right, the inner and outer rings of the one-way bearing 27 rotate relative to each other. When the rectangular rod 12 moves to the left, the inner and outer rings of the one-way bearing 27 are in a locked state at this time. In this way, when the second threaded rod 26 moves to the left, it causes the entire one-way bearing 27 to rotate, and then causes the support block 10 to rotate, and the rotation angle is 180 degrees. In this way, each time it works, the support block 10 is rotated through the one-way bearing 27, so that the metal chips remaining inside the circular hole 33 can be discharged, avoiding the accumulation of metal chips inside the circular hole 33 and affecting the next drilling effect.

[0026] As Figure 4 and Figure 6 shown, a square rod 29 is slidably connected inside the second threaded rod 26. The left side of the square rod 29 is fixedly connected to the right side of the conical block 23. A circular block 44 is fixedly connected to the right side of the square rod 29. A second spring 37 is sleeved on the rod wall of the square rod 29; When supporting and fixing seamless pipes with different inner diameters, the moving distance of the conical block 23 is different, but the moving distance of the second threaded rod 26 needs to be the same each time to ensure the stable rotation of the support block 10. Therefore, the moving distance of the second threaded rod 26 driven by the rectangular rod 12 is the same each time. When the second threaded rod 26 moves, it compresses the second spring 37. The second spring 37 has a thrust on the circular block 44, thereby pulling the square rod 29 to move, and the square rod 29 drives the conical block 23 to move.

[0027] As Figure 3 、 Figure 7 and Figure 10 shown, limiting grooves 24 are evenly formed on the outer side of the left side of the conical block 23. A limiting block 43 is fixedly connected to one side of the lower end of the inclined block 18. When the conical block 23 moves to the right, the left side of the limiting block 43 is inserted into the inside of the limiting groove 24. It should be noted that the left side of the limiting block 43 is set to be an acute angle. The outer ring of the one-way bearing 27 is rotatably connected to the inside of the support block 10. A return spring 28 is fixedly connected to the outer ring of the one-way bearing 27. One end of the return spring 28 is fixedly connected to the support block 10; When the conical block 23 moves to the right, the limit block 43 is engaged into the inside of the limit groove 24. Since the right side of the conical block 23 is a square rod 29, the conical block 23 cannot rotate. When the limit block 43 is engaged into the inside of the limit groove 24, the inclined block 18 is in a stable state during operation and will not shake, improving the stability of drilling. When the second threaded rod 26 moves to the left, at this time the inclined block 18 cannot rotate. When the one-way bearing 27 rotates, the return spring 28 is deformed. When the limit block 43 disengages from the limit groove 24, under the action of the elastic force of the return spring 28, the support block 10 rotates, ensuring the normal progress of the work.

[0028] As Figure 6 and Figure 7 shown, circular grooves 31 are provided at both the upper and lower positions on the left side of the cross bar 9. A third spring 32 is fixedly connected inside the circular groove 31. The left side of the third spring 32 is fixedly connected with a convex block 30. The convex block 30 is slidably arranged inside the circular groove 31. The left side of the convex block 30 is embedded into the right side of the support block 10. The third spring 32 has a certain thrust on the convex block 30, so that there is a certain frictional force between the convex block 30 and the support block 10. In this way, when no other external force is applied, the support block 10 can be in a stable state; As Figure 6 shown, a metal block 20 is slidably connected inside the circular hole 33. Clamping blocks 19 are fixedly connected to both sides of the inner wall of the circular hole 33. When the support block 10 rotates, the upper circular hole 33 faces downward. At this time, the metal block 20 moves downward under the action of gravity, pushing the metal chips inside the circular hole 33 and improving the chip removal effect. The metal block 20 is limited by the clamping blocks 19; As Figure 2 and Figure 5 shown, a vertical rod 3 is slidably connected to the upper left end of the workbench 1. The upper end of the vertical rod 3 is fixedly connected with an arc-shaped block 2. A third threaded rod 15 is threadedly connected inside the arc-shaped block 2. The third threaded rod 15 is rotatably connected to the inside of the workbench 1. The lower end of the third threaded rod 15 is fixedly connected with a first bevel gear 16. A turntable is rotatably connected to the left side of the workbench 1. A second bevel gear 17 meshing with the first bevel gear 16 is fixedly connected to the right side of the turntable; Rotate the turntable to make the second bevel gear 17 rotate, and then make the first bevel gear 16 rotate. The rotation of the first bevel gear 16 drives the third threaded rod 15 to rotate. The third threaded rod 15 makes the vertical rod 3 drive the arc-shaped block 2 to move up and down, and make appropriate adjustments according to seamless pipes of different diameters, and provide appropriate supporting effects through the arc-shaped block 2.

[0029] As Figure 2 and Figure 4As shown in the figure, a second sliding groove 34 is formed at the upper end of the workbench 1. A second sliding block 39 is slidably connected inside the second sliding groove 34. The second sliding block 39 moves inside the second sliding groove 34. A fourth spring 45 is fixedly connected to the right side of the second sliding block 39. The fourth spring 45 exerts a rightward thrust on the second sliding block 39. A placing block 40 is provided at the upper end of the second sliding block 39. One end of the seamless pipe is placed on the upper end of the placing block 40. A rectangular groove 35 is formed at the lower end of the workbench 1 where the second sliding groove 34 is located. A moving block 36 is slidably connected inside the rectangular groove 35. The moving block 36 moves left and right inside the rectangular groove 35. A blocking block 38 is fixedly connected to the upper end of the moving block 36. A fourth threaded rod 46 is rotatably connected inside the rectangular groove 35. The fourth threaded rod 46 is threadedly connected to the inside of the moving block 36. By rotating the fourth threaded rod 46, the moving block 36 moves inside the rectangular groove 35. A scale 11 is provided at the upper end of the workbench 1, which is convenient for observing the moving distance of the right side of the seamless pipe. A square block 41 is slidably connected to the upper end of the second sliding block 39. A fifth spring 42 is fixedly connected to the lower end of the square block 41. The fifth spring 42 exerts a supporting force on the square block 41, enabling the placing block 40 to provide a supporting force for the right side of the seamless pipe. The left side of the placing block 40 is inclined, and the inclined setting can guide the right side of the seamless pipe, thus accommodating seamless pipes of different diameters. By providing the placing block 40, it can provide a supporting effect on the seamless pipe when placing the seamless pipe, and then push the seamless pipe to the right to move to the position where drilling is required. Under the action of the second sliding block 39, the seamless pipe can move stably, making the feeding more convenient. At the same time, by rotating the fourth threaded rod 46, the moving block 36 moves inside the rectangular groove 35. The movement of the moving block 36 drives the movement of the blocking block 38. The moving distance of the second sliding block 39 is limited by the position of the blocking block 38. The blocking block 38 points to the scale 11, which is convenient for observing the adjusted distance. In this way, when processing multiple seamless pipes, only by pushing the seamless pipe to the right, it can reach the position where drilling is required, without the need to measure the position every time drilling is performed, improving the working speed.

[0030] Working principle: During operation, the seamless pipe to be drilled is passed through the outside of the support block 10 and the cross bar 9 and sleeved on the outside of the cross bar 9 and the support block 10. At this time, the motor 8 operates, and the output end of the motor 8 drives the first threaded rod 13 to rotate. The rotation of the first threaded rod 13 causes the rectangular rod 12 to move to the right. The movement of the rectangular rod 12 drives the conical block 23 to move to the right. When the conical block 23 moves to the right, it contacts the inclined block 18. The inclined surface of the conical block 23 contacts the inclined surface of the inclined block 18, pushing the inclined block 18 to move. The movement of the inclined block 18 drives the first slider 25 to move inside the first chute 21. Multiple inclined blocks 18 move and fit against the inner wall of the seamless pipe. At this time, the moving rod 5 drives the drill 6 to move downward and cooperate with the round hole 33 to drill the seamless pipe. After the drilling is completed, the motor 8 drives the rectangular rod 12 to move to the left, causing the conical block 23 to move to the left. At this time, the inclined block 18 is reset under the action of the first spring 22 and retracted into the support block 10. In this way, during the drilling operation, the conical block 23 is driven by the rectangular rod 12 to move, causing the inclined block 18 to approach the inner wall of the seamless pipe, and the inclined block 18 exerts a certain pressure on the seamless pipe. Under the action of multiple inclined blocks 18, a sufficient fixing effect can be achieved from the inside of the seamless pipe. In this way, when the drill 6 presses down for drilling, the inclined block 18 can provide good support force, avoiding the deformation of the seamless pipe caused by the drill 6 during processing, improving the drilling effect. At the same time, through the movement of multiple inclined blocks 18, good support force can be provided for seamless pipes of different diameters, improving the applicability of the device; Furthermore, when the rectangular rod 12 moves to the right, it drives the second threaded rod 26 to move to the right. The movement of the second threaded rod 26 causes the inner ring of the one-way bearing 27 to rotate. When the second threaded rod 26 moves to the right, the inner ring and the outer ring of the one-way bearing 27 rotate relative to each other. When the rectangular rod 12 moves to the left, the inner ring and the outer ring of the one-way bearing 27 are in a locked state at this time. In this way, when the second threaded rod 26 moves to the left, it causes the entire one-way bearing 27 to rotate, thereby causing the support block 10 to rotate, and the rotation angle is 180 degrees. In this way, during each operation, the support block 10 is rotated by the one-way bearing 27, thereby being able to discharge the metal chips remaining inside the round hole 33 and preventing the metal chips from accumulating inside the round hole 33 and affecting the next drilling effect; Furthermore, when supporting and fixing seamless pipes with different inner diameters, the moving distances of the conical blocks 23 are different, but the moving distance of the second threaded rod 26 needs to be the same each time to ensure the stable rotation of the support block 10. Therefore, the moving distance of the second threaded rod 26 driven by the rectangular rod 12 is the same each time. When the second threaded rod 26 moves, it compresses the second spring 37. The second spring 37 exerts a thrust on the round block 44, thereby pulling the square rod 29 to move. The square rod 29 drives the conical block 23 to move; Further, when the conical block 23 moves to the right, the limit block 43 is inserted into the inside of the limit groove 24. Since the right side of the conical block 23 is a square rod 29, the conical block 23 cannot rotate. When the limit block 43 is inserted into the inside of the limit groove 24, the inclined block 18 is in a stable state during operation and will not shake, improving the stability of drilling. When the second threaded rod 26 moves to the left, the inclined block 18 cannot rotate at this time. When the one-way bearing 27 rotates, the return spring 28 is deformed. When the limit block 43 disengages from the limit groove 24, under the action of the elastic force of the return spring 28, the support block 10 rotates, ensuring the normal progress of the work; Further, the provided placement block 40 can support the seamless pipe when placing the seamless pipe, and then push the seamless pipe to move to the right to the position where drilling is required. Under the action of the second slider 39, the seamless pipe can move stably, making the feeding more convenient. At the same time, by rotating the fourth threaded rod 46, the moving block 36 moves inside the rectangular groove 35. The movement of the moving block 36 drives the movement of the stop block 38. The movement distance of the second slider 39 is limited by the position of the stop block 38. The stop block 38 points to the scale 11, facilitating the observation of the adjusted distance. In this way, when processing multiple seamless pipes, only by pushing the seamless pipe to the right can it reach the position where drilling is required, without the need to measure the position every time drilling is performed, improving the working speed.

[0031] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A seamless pipe processing and punching mechanism for a heat exchanger, comprising a workbench, characterized in that: A moving rod is fixedly connected to the left side of the upper end of the workbench, and a drilling rig for drilling is fixedly connected to the upper end of the moving rod. A limiting assembly is provided at the upper end of the workbench, and the limiting assembly is used to support the inner wall of the seamless pipe; The limit assembly includes a support plate fixedly connected to the right side of the upper end of the workbench, the left side of the support plate is fixedly connected to a cross bar, the left side of the cross bar is provided with a support block, the support block is circularly set, a rectangular rod is slidably connected to the inside of the cross bar, the right side of the support plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a first threaded rod, the rod wall of the first threaded rod is threadedly connected to the inner side of the rectangular rod, a conical block is provided on the left side of the rectangular rod, a first slide groove is evenly opened inside the support block, a first slider is slidably connected inside the first slide groove, one side of the first slider is fixedly connected to a first spring, and the left side of the first slider is fixedly connected to an inclined block, the inclined block is slidably connected to the outer side of the support block, and the inclined blocks are multiplely set, and circular holes are opened on the opposite sides of the upper and lower inclined blocks.

2. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 1, characterized in that: The right side of the support block is rotatably connected to the left side of the cross bar, the left side of the rectangular rod is fixedly connected to a second threaded rod, the outer side of the second threaded rod is threadedly connected to a one-way bearing, the outer ring of the one-way bearing is connected to the inside of the support block, and the left side of the second threaded rod is movably connected to the conical block.

3. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 2, characterized in that: A square rod is slidably connected inside the second threaded rod, the left side of the square rod is fixedly connected to the right side of the conical block, the right side of the square rod is fixedly connected to a round block, and the rod wall of the square rod is sleeved with a second spring.

4. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 3, characterized in that: Limiting grooves are evenly arranged on the left outer side of the conical block, one side of the lower end of the inclined block is fixedly connected to the limiting block, the outer ring of the one-way bearing is rotatably connected to the inside of the support block, the outer ring of the one-way bearing is fixedly connected to a return spring, and one end of the return spring is fixedly connected to the support block.

5. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 1, characterized in that: Circular grooves are provided at the upper and lower positions of the left side of the cross bar, a third spring is fixedly connected to the inside of the circular groove, a protrusion is fixedly connected to the left side of the third spring, the protrusion is slidingly arranged inside the circular groove, and the left side of the protrusion is embedded in the right side of the support block.

6. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 1, characterized in that: A metal block is slidably connected inside the circular hole, and clamping blocks are fixedly connected on both sides of the inner wall of the circular hole.

7. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 1, characterized in that: A vertical rod is slidably connected to the left side of the upper end of the workbench, and an arc block is fixedly connected to the upper end of the vertical rod. The internal thread of the arc block is connected to a third threaded rod, and the third threaded rod is rotatably connected to the inside of the workbench. The lower end of the third threaded rod is fixedly connected to a first bevel gear, and a turntable is rotatably connected to the left side of the workbench, and a second bevel gear meshing with the first bevel gear is fixedly connected to the right side of the turntable.

8. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 1, characterized in that: A second sliding groove is provided at the upper end of the workbench, a second slider is slidably connected inside the second sliding groove, a fourth spring is fixedly connected to the right side of the second slider, a placing block is provided at the upper end of the second slider, a rectangular groove is provided at the lower end of the workbench located at the second sliding groove, a moving block is slidably connected inside the rectangular groove, a stopper is fixedly connected to the upper end of the moving block, a fourth threaded rod is rotatably connected inside the rectangular groove, the fourth threaded rod is connected to the internal thread of the moving block, and a scale is provided at the upper end of the workbench.

9. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 8, characterized in that: The upper end of the second sliding block is slidably connected to a square block, the lower end of the square block is fixedly connected to a fifth spring, the left side of the placement block is inclined, and the upper end of the square block is fixedly connected to the lower end of the placement block.

10. The seamless pipe processing and punching mechanism for a heat exchanger according to claim 1, characterized in that: A dirt collection box is slidably connected to the left side of the upper end of the workbench, and a rubber block is fixedly connected to the left side of the support block.

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