Pipe piercing machine

Abstract

The utility model provides a kind of pipe punching machine, comprising: lower mould core;First punching assembly, first punching assembly is arranged in the side of lower mould core, first punching assembly has first punching part and first driving part, and first driving part is driven connection with first punching part;Second punching assembly, second punching assembly is arranged in the side of lower mould core away from first punching assembly, second punching assembly is oppositely arranged with first punching assembly, second punching assembly has second punching part and second driving part, and second driving part is driven connection with second punching part, first punching assembly and second punching assembly are oppositely arranged in the both sides of pipe, and make its driving part can drive punching part synchronous or as needed to the direction of lower mould core movement, reach the effect that the both sides of pipe are punched simultaneously or in coordination, significantly improve the concentricity precision of the both sides hole of pipe, overcome the concentricity difference problem caused by die gap, pipe error and positioning deviation due to stepwise single stamping.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to a pipe punching machine. Background Technology

[0002] In industries such as construction, furniture, automobiles, agricultural machinery, sporting goods, and fences, metal or non-metal pipes (such as round, square, and rectangular pipes) are commonly used structural materials. To meet the needs of connection and assembly, ventilation and drainage, weight reduction, or to achieve specific functions, it is necessary to punch holes at specific locations on the pipe wall. Pipe punching machines are specialized equipment for this process. Currently, the widely used method of punching both sides of the pipe in a single, step-by-step process results in a gap between the die core and the inner wall of the pipe. Furthermore, the pipe may have straightness errors and positioning deviations on the equipment, making it difficult to guarantee the concentricity of the holes punched in two stages on both sides of the pipe wall.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a pipe punching machine to solve the technical problem that the method of punching the front and back sides of the pipe in stages in the related technology results in a gap between the mold core and the inner wall of the pipe. At the same time, the pipe may have straightness errors and positioning deviations on the equipment, which makes it difficult to ensure the concentricity of the holes punched in two stages on both sides of the pipe wall.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a pipe punching machine is provided, comprising: a lower die core; a first punching assembly, the first punching assembly being disposed on one side of the lower die core, the first punching assembly having a first punching portion and a first driving portion, the first driving portion being drivenly connected to the first punching portion to drive the first punching portion to move toward the lower die core, so as to punch one side of the profile placed on the lower die core; and a second punching assembly, the second punching assembly being disposed on the side of the lower die core away from the first punching assembly, the second punching assembly being disposed opposite to the first punching assembly, the second punching assembly having a second punching portion and a second driving portion, the second driving portion being drivenly connected to the second punching portion to drive the second punching portion to move toward the lower die core, so as to punch the other side of the profile.

[0006] Further, the first punching assembly includes: a first driving member that extends and retracts toward the lower die core; and a first punching member that is driven to be driven by the first driving member to punch one side of the profile. The second punching assembly includes: a second driving member that extends and retracts toward the lower die core; and a second punching member that is correspondingly disposed to the first punching member and driven to be driven by the second driving member to punch the other side of the profile.

[0007] Furthermore, the first punching component includes at least two first punches; the second punching component includes at least two second punches; the pipe punching machine further includes: a first punch selection component, which is connected to the first punching component and the first driving component respectively, and is used to select one of the at least two first punches to punch one side of the profile; and a second punch selection component, which is connected to the second punching component and the second driving component respectively, and is used to select one of the at least two second punches to punch the other side of the profile.

[0008] Further, the first punch selection component includes: a first upper template, the first upper template having a number of first clearance spaces corresponding to the number of first punches, each first punch being movably disposed within its corresponding first clearance space; at least two first blocking blocks, each first blocking block being respectively disposed in a one-to-one correspondence with each first clearance space, each first blocking block being movably disposed within its corresponding first clearance space; each first blocking block having a first blocking position and a first clearance position; wherein, when the first blocking block is in the first blocking position, the first blocking block is located on the movement path of the first punch in the corresponding first clearance space, to prevent the first punch from moving toward the first clearance space to punch the profile; when the first blocking block is in the first clearance position, the first blocking block moves away from the movement path of the first punch in the corresponding first clearance space, to allow the first punch to enter the first clearance space to punch the profile. The second punch selection component includes: a second upper template, which has a number of second clearance spaces corresponding to the number of second punches, each second punch being movably disposed within its corresponding second clearance space; at least two second blocking blocks, each second blocking block being movably disposed within its corresponding second clearance space; each second blocking block having a second blocking position and a second clearance position; wherein, when the second blocking block is in the second blocking position, the second blocking block is located on the movement path of the second punch in the corresponding second clearance space to prevent the second punch from moving toward the second clearance space to punch the profile; when the second blocking block is in the second clearance position, the second blocking block moves away from the movement path of the second punch in the corresponding second clearance space to allow the second punch to enter the second clearance space to clearance the profile.

[0009] Furthermore, the first punch selection component also includes: a first limiting plate, which is connected to the side of the first upper template near the first punch, and each first punch is movably inserted through the first limiting plate and moved into a corresponding first clearance space; each first sealing block is movably disposed relative to each first limiting plate; the second punch selection component also includes: a second limiting plate, which is connected to the side of the second upper template near the second punch, and each second punch is movably inserted through the second limiting plate and moved into a corresponding second clearance space; each second sealing block is movably disposed relative to each second limiting plate.

[0010] Furthermore, the pipe punching machine also includes: a first anti-deformation component, the first anti-deformation component having a first connecting part and a first anti-deformation part, the first connecting part being connected to the first punching part, and the side of the first connecting part away from the first punching part being connected to the first driving part; the first anti-deformation part being movably disposed relative to the first connecting part, and the first anti-deformation part having the same number of first clearance holes as the first punch; The first punching part is movably inserted into the first clearance hole; the first driving part drives the first connecting part, the first punching part, and the first anti-deformation part to move together toward the lower die core until the first anti-deformation part abuts against the profile; thereafter, the first driving part continues to drive the first connecting part and the first punching part to move relative to the first anti-deformation part and toward the lower die core, so that the first punching part passes through the first clearance hole and punches the profile; the pipe punching machine also includes: a second anti-deformation assembly, the second anti-deformation assembly having a second connecting part and a second anti-deformation part, the second connecting part being connected to the second punching part, and the side of the second connecting part away from the second punching part being connected to the second driving part; the second anti-deformation part is movably disposed relative to the second connecting part, and the second anti-deformation part has a second clearance hole with the same number as the second punch; The second punching part is movably inserted into the second clearance hole; the second driving part is used to drive the second connecting part, the second punching part and the second anti-deformation part to move together toward the lower die core until the second anti-deformation part abuts the profile; thereafter, the second driving part continues to drive the second connecting part and the second punching part to move relative to the second anti-deformation part and toward the lower die core, so that the second punching part passes through the second clearance hole and punches the profile.

[0011] Further, the first anti-deformation component includes: a first upper template, which is connected to the first punched portion, and the side of the first upper template away from the first punched portion is connected to the first driving portion; and a first anti-deformation plate, which is movably disposed relative to the first upper template, and a first clearance hole is provided on the first anti-deformation plate. The second anti-deformation component includes: a second upper template, which is connected to the second punched portion, and the side of the second upper template away from the second punched portion is connected to the second driving portion; and a second anti-deformation plate, which is movably disposed relative to the second upper template, and a second clearance hole is provided on the second anti-deformation plate.

[0012] Furthermore, the first anti-deformation component further includes: a first connector, which sequentially passes through the first upper template and the first anti-deformation plate, the first connector being connected to the first upper template, and the first anti-deformation plate being movably disposed relative to the first connector; a first spring, which is sleeved on the first connector, and its two ends being connected to the first upper template and the first anti-deformation plate respectively; the second anti-deformation component further includes: a second connector, which sequentially passes through the second upper template and the second anti-deformation plate, the second connector being connected to the second upper template, and the second anti-deformation plate being movably disposed relative to the second connector; a second spring, which is sleeved on the second connector, and its two ends being connected to the second upper template and the second anti-deformation plate respectively.

[0013] Furthermore, the pipe punching machine also includes a positioning plate, which is movably mounted on the lower die core.

[0014] Furthermore, the pipe punching machine also includes a slider, which is movably disposed inside the lower die core.

[0015] Beneficial effects: 1. By setting the first punching assembly and the second punching assembly opposite each other on both sides of the pipe, and making their driving parts able to drive the punching parts to move synchronously or as needed towards the downward die core, the effect of punching the two side walls of the pipe simultaneously or in a coordinated manner is achieved, which significantly improves the concentricity accuracy of the holes on both sides of the pipe and overcomes the problem of concentricity difference caused by die clearance, pipe error and positioning deviation in step-by-step single-pressing.

[0016] 2. By setting multiple first punches and second punches in the first punching part and the second punching part respectively, and configuring first punch selection components and second punch selection components, the effect of flexibly selecting different specifications of punches for work according to processing requirements is achieved, which improves the adaptability and processing efficiency of the equipment and eliminates the need for frequent replacement of the overall mold.

[0017] 3. By specifically setting clearance spaces on the upper templates of the first and second punch selection components to accommodate the punches, and configuring movable first and second blocking blocks, and by controlling the first and second blocking blocks to be in the first / second blocking position or the first / second clearance position, the target punch is accurately selected and locked for operation, while allowing non-operating punches to move and retreat within the clearance space, thus achieving rapid and reliable switching of punch specifications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the pipe punching machine used in this embodiment of the utility model; Figure 2 This is a partial structural schematic diagram of the pipe punching machine used in this embodiment of the utility model; Figure 3 This is a schematic diagram of the internal structure of the pipe punching machine used in this embodiment of the utility model; Figure 4 This is a schematic diagram of the first anti-deformation component structure of the pipe punching machine used in this embodiment of the utility model; Figure 5 This is a schematic diagram of the lower mold core structure provided in an embodiment of the present invention.

[0019] The above figures include the following reference numerals: 1. Lower die core; 2. First punching assembly; 3. Second punching assembly; 4. First driving component; 5. First punching component; 6. First punch; 7. First punch selection assembly; 8. First upper template; 9. First anti-deformation plate; 10. First sealing block; 11. First limiting plate; 12. First anti-deformation assembly; 13. First connecting component; 14. First spring; 16. Positioning plate; 17. First proximity switch; 18. Slider; 19. Second proximity switch; 20. Hydraulic cylinder. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] According to an embodiment of this utility model, a pipe punching machine is provided. Please refer to [link / reference]. Figures 1 to 5 The assembly includes: a lower die core 1; a first punching assembly 2, which is disposed on one side of the lower die core 1, having a first punching portion and a first driving portion, the first driving portion being drivenly connected to the first punching portion to drive the first punching portion to move toward the lower die core 1 to punch one side of the profile placed on the lower die core 1; and a second punching assembly 3, which is disposed on the side of the lower die core 1 away from the first punching assembly 2, and is disposed opposite to the first punching assembly 2, having a second punching portion and a second driving portion, the second driving portion being drivenly connected to the second punching portion to drive the second punching portion to move toward the lower die core 1 to punch the other side of the profile.

[0022] By adopting the above technical solution, a first punching component 2 and a second punching component 3 are arranged opposite to each other on both sides of the pipe, and the driving part can drive the punching part to move synchronously or as needed towards the downward die core 1. This achieves the effect of punching the two side walls of the pipe simultaneously or in a coordinated manner, significantly improving the concentricity accuracy of the holes on both sides of the pipe, and overcoming the problem of concentricity difference caused by die gap, pipe error and positioning deviation in step-by-step single-pressing.

[0023] Please refer to Figure 1 and Figure 3The first punching assembly 2 includes: a first driving member 4, which extends and retracts toward the lower die core 1; and a first punching member 5, which is driven to be connected to the first driving member 4 so as to drive the first punching member 5 to punch one side of the profile through the first driving member 4; the second punching assembly 3 includes: a second driving member, which extends and retracts toward the lower die core 1; and a second punching member, which is correspondingly arranged to the first punching member 5 and is driven to be connected to the second driving member so as to drive the second punching member to punch the other side of the profile through the second driving member.

[0024] The first driving member 4 forms a first driving part, and the first punching member 5 forms a first punching part; the second driving member forms a second driving part, and the second punching member forms a second punching part.

[0025] Furthermore, the first driving member 4 and the second driving member can be a hydraulic rod, a pneumatic cylinder, or a hydraulic cylinder, with a hydraulic cylinder being preferred.

[0026] By adopting the above technical solution, the first driving part and the second driving part are specifically defined as the retractable first driving member 4 and the second driving member, and the first punching part and the second punching part are specifically defined as the corresponding first punching member 5 and the second punching member, thereby achieving the effect of providing a stable and reliable driving force to drive the punching member to perform precise punching action, and ensuring the power and controllability of the punching process.

[0027] Please refer to Figure 1 , Figure 3 and Figure 4 The first punching component 5 includes at least two first punches 6; the second punching component includes at least two second punches; the pipe punching machine further includes: a first punch selection component 7, which is connected to the first punching component 5 and the first driving component 4 respectively, and is used to select one of the at least two first punches 6 to punch one side of the profile; and a second punch selection component, which is connected to the second punching component and the second driving component respectively, and is used to select one of the at least two second punches to punch the other side of the profile.

[0028] By adopting the above technical solution, multiple first punches 6 and second punches are respectively set in the first punching part 5 and the second punching part, and the first punch selection component 7 and the second punch selection component are configured, so that different specifications of punches can be flexibly selected for work according to processing requirements, thereby improving the adaptability and processing efficiency of the equipment and eliminating the need for frequent replacement of the overall mold.

[0029] Please refer to Figure 1 and Figure 2The first punch selection component 7 includes: a first upper template 8, which has first clearance spaces corresponding to the number of first punches 6, and each first punch 6 is movably disposed within the corresponding first clearance space; at least two first blocking blocks 10, each first blocking block 10 being disposed one-to-one with each first clearance space, and each first blocking block 10 being movably disposed within the corresponding first clearance space; each first blocking block 10 has a first blocking position and a first clearance position; Specifically, when the first blocking block 10 is in the first blocking position, it is located on the movement path of the first punch 6 corresponding to the first clearance space, thus preventing the first punch 6 from moving toward the first clearance space to punch the profile; when the first blocking block 10 is in the first clearance position, it moves away from the movement path of the first punch 6 corresponding to the first clearance space, allowing the first punch 6 to enter the first clearance space to clearance the profile; the second punch selection component includes: a second upper template, which has a number of second clearance spaces corresponding to the number of second punches, and each second punch is movably disposed in the corresponding second clearance space; at least two second blocking blocks, each second blocking block is respectively disposed in a one-to-one correspondence with each second clearance space, and each second blocking block is movably disposed in the corresponding second clearance space; each second blocking block has a second blocking position and a second clearance position; Specifically, when the second blocking block is in the second blocking position, the second blocking block is located on the movement path of the second punch corresponding to the second clearance space, so as to block the second punch from moving toward the second clearance space to punch the profile; when the second blocking block is in the second clearance position, the second blocking block moves away from the movement path of the second punch corresponding to the second clearance space, so as to allow the second punch to enter the second clearance space to avoid the profile.

[0030] By adopting the above technical solution, the first punch selection component 7 and the second punch selection component specifically adopt the method of setting a clearance space on their respective upper templates to accommodate the punch, and configuring a movable first blocking block 10 and a second blocking block. By controlling the first blocking block 10 and the second blocking block to be in the first / second blocking position or the first / second clearance position, the target punch is accurately selected and locked for operation, while allowing non-working punches to move and retreat within the clearance space, thus realizing the rapid and reliable switching of punch specifications.

[0031] Please refer to Figures 1 to 3The first punch selection component 7 further includes: a first limiting plate 11, which is connected to the side of the first upper template 8 near the first punch 6, and each first punch 6 is movably inserted through the first limiting plate 11 and moved to a corresponding first clearance space; each first blocking block 10 is movably disposed relative to each first limiting plate 11; the second punch selection component further includes: a second limiting plate, which is connected to the side of the second upper template near the second punch, and each second punch is movably inserted through the second limiting plate and moved to a corresponding second clearance space; each second blocking block is movably disposed relative to each second limiting plate.

[0032] By adopting the above technical solution, a first limiting plate 11 and a second limiting plate are added to the first punch selection component 7 and the second punch selection component, which achieves the effect of providing precise guidance and limiting for the movement path of each first punch 6 and the second punch, ensuring that the punch remains stable during the punching and avoidance process and preventing deflection; at the same time, it provides basic support for the movement of the first sealing block 10 and the second sealing block.

[0033] Please refer to Figure 1 and Figure 4 The pipe punching machine also includes: a first anti-deformation component 12, the first anti-deformation component 12 having a first connecting part and a first anti-deformation part, the first connecting part being connected to the first punching part, and the side of the first connecting part away from the first punching part being connected to the first driving part; the first anti-deformation part being movably disposed relative to the first connecting part, and the first anti-deformation part having the same number of first clearance holes as the first punch 6; The first punching part is movably inserted into the first clearance hole; the first driving part drives the first connecting part, the first punching part, and the first anti-deformation part to move together toward the lower die core 1 until the first anti-deformation part abuts against the profile; thereafter, the first driving part continues to drive the first connecting part and the first punching part to move relative to the first anti-deformation part and toward the lower die core 1, so that the first punching part passes through the first clearance hole and punches the profile; the pipe punching machine also includes: a second anti-deformation assembly, the second anti-deformation assembly having a second connecting part and a second anti-deformation part, the second connecting part being connected to the second punching part, and the second connecting part being away from the first clearance hole. One side of the second punching part is connected to the second driving part; the second anti-deformation part is movably disposed relative to the second connecting part, and the second anti-deformation part has a second clearance hole with the same number as the second punch; wherein, the second punching part is movably disposed in the second clearance hole; the second driving part is used to drive the second connecting part, the second punching part and the second anti-deformation part to move together toward the lower die core 1 until the second anti-deformation part abuts against the profile; thereafter, the second driving part continues to drive the second connecting part and the second punching part to move relative to the second anti-deformation part and toward the lower die core 1, so that the second punching part passes through the second clearance hole and punches the profile.

[0034] By adopting the above technical solution, a first anti-deformation component 12 and a second anti-deformation component are set up, which include a first connecting part and a first anti-deformation part that can move relatively, as well as a second connecting part and a second anti-deformation part. The segmented driving method is adopted (first, they move together to make the first / second anti-deformation parts press the pipe, and then the first / second punching parts are driven to move separately to punch). This achieves the effect of the first / second anti-deformation parts pre-pressing the area of ​​the pipe to be punched before punching, effectively preventing the thin-walled pipe from collapsing, deforming or wrinkling during the punching process, and ensuring the punching quality and pipe shape.

[0035] Please refer to Figure 1 , Figure 2 and Figure 4 The first anti-deformation component 12 includes: a first upper template 8, which is connected to the first punching portion, and the side of the first upper template 8 away from the first punching portion is connected to the first driving portion; and a first anti-deformation plate 9, which is movably disposed relative to the first upper template 8, and a first clearance hole is provided on the first anti-deformation plate 9. The first punching part is movably inserted into the first clearance hole; the first driving part is used to drive the first upper template 8, the first punching part and the first anti-deformation plate 9 to move together toward the lower mold core 1 until the first anti-deformation plate 9 abuts against the profile; then, the first driving part continues to drive the first upper template 8 and the first punching part to move relative to the first anti-deformation plate 9 and toward the lower mold core 1, so that the first punching part passes through the first clearance hole and punches the profile.

[0036] The first upper template 8 forms the first connecting part; the first anti-deformation plate 9 forms the first anti-deformation part.

[0037] The second anti-deformation component includes: a second upper template, which is connected to the second punching portion, and the side of the second upper template away from the second punching portion is connected to the second driving portion; and a second anti-deformation plate, which is movably disposed relative to the second upper template, and a second clearance hole is provided on the second anti-deformation plate. The second punching part is movably inserted into the second clearance hole; the second driving part is used to drive the second upper template, the second punching part and the second anti-deformation plate to move together toward the lower mold core 1 until the second anti-deformation plate abuts the profile; then, the second driving part continues to drive the second upper template and the second punching part to move relative to the second anti-deformation plate and toward the lower mold core 1, so that the second punching part passes through the second clearance hole and punches the profile.

[0038] The second upper template forms the second connecting part; the second anti-deformation plate forms the second anti-deformation part.

[0039] By adopting the above technical solution, the first connecting part and the first anti-deformation part of the first anti-deformation component 12 are specifically defined as the relatively movable first upper template 8 and the first anti-deformation plate 9, and the second connecting part and the second anti-deformation part of the second anti-deformation component are specifically defined as the relatively movable second upper template and the second anti-deformation plate. By utilizing the connection relationship between each upper template and the corresponding punching part, the anti-deformation function is efficiently integrated with the punch selection / drive structure, simplifying the device structure, while ensuring that the first / second anti-deformation plate can accurately cover the punching area and provide uniform clamping force.

[0040] Please refer to Figures 1 to 4 The first anti-deformation component 12 further includes: a first connector 13, which is sequentially inserted through the first upper template 8 and the first anti-deformation plate 9, and is connected to the first upper template 8; the first anti-deformation plate 9 is movably disposed relative to the first connector 13; and a first spring 14, which is sleeved on the first connector 13, and the two ends of the first spring 14 are respectively connected to the first upper template 8 and the first anti-deformation plate 9. The second anti-deformation component further includes: a second connector, which is sequentially inserted through the second upper template and the second anti-deformation plate, the second connector being connected to the second upper template, and the second anti-deformation plate being movably disposed relative to the second connector; and a second spring, which is sleeved on the second connector, with both ends of the second spring being connected to the second upper template and the second anti-deformation plate, respectively.

[0041] By adopting the above technical solution, a first connector 13 and a second connector, as well as a first spring 14 and a second spring sleeved on them, are provided in the first anti-deformation component 12 and the second anti-deformation component. Taking the working principle of the first anti-deformation component 12 as an example, the first connector 13 connects the first anti-deformation plate 9 to the first upper template 8 and allows relative movement. The first spring 14 provides reset and buffer force, which achieves the effect that after the first anti-deformation plate 9 presses the pipe, the first upper template 8 and the first punching part can continue to move down independently to punch. At the same time, it ensures that the first anti-deformation plate 9 maintains the pressing force on the pipe and assists the anti-deformation plate to reset after punching. Since the structure and principle of the second anti-deformation component are the same as those of the first anti-deformation component 12, they will not be described in detail here.

[0042] Please refer to Figure 1 The pipe punching machine also includes a positioning plate 16, which is movably mounted on the lower die core.

[0043] By adopting the above technical solution, a movable positioning plate 16 is set on the lower mold core 1, which achieves the effect of axial positioning of the pipe fed into the lower mold core 1, ensuring that the pipe is in the correct processing position in the length direction.

[0044] Furthermore, a first proximity switch 17 is provided on the positioning plate 16, which is used to detect whether the profile has reached the positioning plate 16.

[0045] By adopting the above technical solution, a first proximity switch 17 is set on the positioning plate 16, which achieves the effect of automatically detecting whether the end of the pipe has moved to the predetermined position of the positioning plate 16, and provides a pipe positioning signal for automated control.

[0046] Please refer to Figure 1 The pipe punching machine also includes a slider 18, which is movably disposed inside the lower die core 1.

[0047] By adopting the above technical solution, a movable slider 18 is set inside the lower die core 1, which achieves the effect of providing support for the inner cavity of the tube when needed, enhancing the rigidity of the lower die core 1 in the punching area, and preventing the lower die core 1 from deforming or being damaged during punching. It is especially suitable for thin-walled tubes or high punching pressure.

[0048] Furthermore, a second proximity switch 19 is provided on the side of the lower mold core 1 away from the slider 18. The second proximity switch 19 is used to detect whether the profile enters the lower mold core 1.

[0049] By adopting the above technical solution, a second proximity switch 19 is set at the entrance of the lower mold core 1, which achieves the effect of automatically detecting whether the pipe has started to enter the lower mold core 1, and provides a trigger signal for the subsequent support action of the slider 18 or the start of processing.

[0050] Furthermore, the slider 18 is driven by the hydraulic cylinder 20. When the profile enters the lower mold core 1, the second proximity switch 19 is triggered, and the hydraulic cylinder 20 drives the slider 18 to enter the lower mold core 1 to support the lower mold core 1.

[0051] By adopting the above technical solution, the hydraulic cylinder 20 drives the slider 18 and is linked with the second proximity switch 19. This achieves the effect of automatically driving the slider 18 to move to the designated position to provide internal support for the key area of ​​the lower die core 1 after the tube enters the lower die core 1, thereby enhancing the load-bearing capacity and stability of the lower die core 1 and ensuring the punching accuracy.

[0052] Furthermore, the lower mold core 1 is provided with a material leakage space and a material leakage port connected to the material leakage space.

[0053] By adopting the above technical solution, a material discharge space and a material discharge port are set inside the lower die core 1, so that the waste generated by punching can pass smoothly through the material discharge space and be discharged from the material discharge port, preventing the accumulation of waste from affecting the mold operation, pipe positioning or processing environment.

[0054] Working principle: During operation, the tube to be processed is first fed into the lower die core 1. When the front end of the tube passes the second proximity switch 19 located at the entrance of the lower die core 1, the second proximity switch 19 is triggered, controlling the hydraulic cylinder 20 to drive the slider 18 to move into a predetermined position inside the lower die core 1, providing internal support for the punching area. The tube continues to be fed until its end abuts against the movable positioning plate 16. At this time, the first proximity switch 17 on the positioning plate 16 is triggered, confirming that the tube positioning is complete. According to the required hole diameter, the operator pre-sets the first punch selection component 7 and the second punch selection component: for the first punch selection component 7, the target first punch... The first blocking block 10 corresponding to the first punch 6 is moved to the first blocking position (blocking the movement path of the first punch 6 in the first clearance space), and at the same time, the first blocking block 10 corresponding to the non-target first punch 6 is placed in the first clearance position (moved away from the movement path of the first punch 6 in its first clearance space, so that the non-target first punch 6 is in the first clearance space when the first upper template 8 moves, preventing it from punching the profile), and the second punch selection component performs the same operation to select the target second punch; the equipment is started, and the first driving component 4 and the second driving component move synchronously to drive the first upper template 8, the first punching component 5 (including all the first punches 6) and The first anti-deformation plate 9 moves together with the lower die core 1, simultaneously driving the second upper die plate, the second punching component, and the second anti-deformation plate to move together with the lower die core 1 until the first anti-deformation plate 9 and the second anti-deformation plate tightly press against the outer walls of both sides of the area to be punched in the pipe. Subsequently, the first driving component 4 and the second driving component continue to drive the first upper die plate 8, the first punching component 5, and the second upper die plate and the second punching component to move downward relative to the stationary first anti-deformation plate 9 and the second anti-deformation plate, overcoming the resistance of the first spring 14 and the second spring, so that the selected target first punch 6 passes through the corresponding first clearance hole on the first anti-deformation plate 9 and impacts one side wall of the pipe. Simultaneously, the selected target second punch passes through the corresponding second clearance hole on the second anti-deformation plate and impacts the opposite side wall of the pipe, completing the synchronous punching of the holes on both sides; the waste generated by punching passes through the preset leakage space on the lower die core 1 and is discharged from the leakage port; after punching is completed, the first drive component 4 and the second drive component retract, driving the first upper template 8, the first punching component 5, the first anti-deformation plate 9, as well as the second upper template, the second punching component, and the second anti-deformation plate to reset under the action of their respective springs; the hydraulic cylinder 20 drives the slider 18 to exit the lower die core 1; the operator removes the processed pipe or the equipment automatically sends the pipe out, ready for the next processing cycle.

[0055] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0056] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0057] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0058] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0059] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A pipe punching machine, characterized in that, include: Lower mold core (1); The first punching assembly (2) is disposed on one side of the lower die core (1). The first punching assembly (2) has a first punching part and a first driving part. The first driving part is drivenly connected to the first punching part to drive the first punching part to move toward the lower die core (1) to punch one side of the profile placed on the lower die core (1). The second punching assembly (3) is disposed on the side of the lower die core (1) away from the first punching assembly (2). The second punching assembly (3) is disposed opposite to the first punching assembly (2). The second punching assembly (3) has a second punching part and a second driving part. The second driving part is drivenly connected to the second punching part to drive the second punching part to move toward the lower die core (1) to punch the other side of the profile.

2. The pipe punching machine according to claim 1, characterized in that, The first punching assembly (2) includes: The first driving member (4) extends and retracts toward the lower mold core (1); The first punching part (5) is driven to be connected to the first driving part (4) so ​​that the first punching part (5) is driven by the first driving part (4) to punch a hole on one side of the profile. The second punching assembly (3) includes: The second driving member extends and retracts toward the lower mold core (1); The second punching component is provided corresponding to the first punching component (5). The second punching component is driven to be connected to the second driving component so as to drive the second punching component to punch the other side of the profile through the second driving component.

3. The pipe punching machine according to claim 2, characterized in that, The first punch (5) includes at least two first punches (6); the second punch includes at least two second punches; The pipe punching machine also includes: The first punch selection component (7) is connected to the first punching component (5) and the first driving component (4) respectively. The first punch selection component (7) is used to select one of the at least two first punches (6) to punch one side of the profile. The second punch selection component is connected to the second punching member and the second driving member respectively. The second punch selection component is used to select one of the at least two second punches to punch the other side of the profile.

4. The pipe punching machine according to claim 3, characterized in that, The first punch selection component (7) includes: The first upper template (8) has a number of first clearance spaces corresponding to the number of first punches (6), and each first punch (6) is movably set in the corresponding first clearance space; At least two first blocking blocks (10) are provided, each first blocking block (10) is respectively provided in correspondence with each first clearance space, and each first blocking block (10) is movably provided in the corresponding first clearance space; each first blocking block (10) has a first blocking position and a first clearance position; wherein, when the first blocking block (10) is in the first blocking position, the first blocking block (10) is located on the movement path of the first punch (6) in the corresponding first clearance space, so as to block the first punch (6) from moving toward the first clearance space to punch the profile; When the first blocking block (10) is in the first avoidance position, the first blocking block (10) moves away from the movement path of the first punch (6) corresponding to the first avoidance space, so as to allow the first punch (6) to enter the first avoidance space to avoid the profile; The second punch selection component includes: The second upper template has a number of second clearance spaces corresponding to the number of second punches, and each second punch is movably set in the corresponding second clearance space; At least two second blocking blocks are provided, each second blocking block being respectively configured in a one-to-one correspondence with each second clearance space, and each second blocking block being movably disposed within the corresponding second clearance space; each second blocking block has a second blocking position and a second clearance position; wherein, when the second blocking block is in the second blocking position, the second blocking block is located on the movement path of the second punch in the corresponding second clearance space, so as to prevent the second punch from moving toward the second clearance space to punch the profile; When the second blocking block is in the second avoidance position, the second blocking block moves away from the second punch movement path corresponding to the second avoidance space, so as to allow the second punch to enter the second avoidance space to avoid the profile.

5. The pipe punching machine according to claim 4, characterized in that, The first punch selection component (7) further includes: The first limiting plate (11) is connected to the side of the first upper template (8) near the first punch (6). Each first punch (6) is movably inserted through the first limiting plate (11) and moved to the corresponding first clearance space. Each first blocking block (10) is movably set relative to each first limiting plate (11). The second punch selection component also includes: The second limiting plate is connected to the side of the second upper template near the second punch. Each second punch is movably inserted through the second limiting plate and moved into the corresponding second clearance space. Each second blocking block is movably set relative to each second limiting plate.

6. The pipe punching machine according to claim 3, characterized in that, The pipe punching machine further includes: a first anti-deformation component (12), the first anti-deformation component (12) having a first connecting part and a first anti-deformation part, the first connecting part being connected to the first punching part, and the side of the first connecting part away from the first punching part being connected to the first driving part; the first anti-deformation part being movably disposed relative to the first connecting part, and the first anti-deformation part having the same number of first clearance holes as the first punch (6); The first punched portion is movably inserted into the first clearance hole; the first driving portion is used to drive the first connecting portion, the first punched portion and the first anti-deformation portion to move together toward the lower die core (1) until the first anti-deformation portion abuts the profile; thereafter, the first driving portion continues to drive the first connecting portion and the first punched portion to move relative to the first anti-deformation portion and toward the lower die core (1), so that the first punched portion passes through the first clearance hole and punches the profile; The pipe punching machine further includes: a second anti-deformation component, the second anti-deformation component having a second connecting part and a second anti-deformation part, the second connecting part being connected to the second punching part, and the side of the second connecting part away from the second punching part being connected to the second driving part; the second anti-deformation part being movably disposed relative to the second connecting part, and the second anti-deformation part having a second clearance hole having the same number as the second punch; The second punched portion is movably inserted into the second clearance hole; the second driving portion is used to drive the second connecting portion, the second punched portion and the second anti-deformation portion to move together toward the lower die core (1) until the second anti-deformation portion abuts the profile; thereafter, the second driving portion continues to drive the second connecting portion and the second punched portion to move relative to the second anti-deformation portion and toward the lower die core (1), so that the second punched portion passes through the second clearance hole and punches the profile.

7. The pipe punching machine according to claim 6, characterized in that, The first anti-deformation component (12) includes: The first upper template (8) is connected to the first punched portion, and the side of the first upper template (8) away from the first punched portion is connected to the first driving portion; The first anti-deformation plate (9) is movably disposed relative to the first upper template (8), and the first anti-deformation plate (9) is provided with a first clearance hole; The second anti-deformation component includes: The second upper template is connected to the second punched portion, and the side of the second upper template away from the second punched portion is connected to the second drive portion; The second anti-deformation plate is movably disposed relative to the second upper template, and the second anti-deformation plate is provided with a second clearance hole.

8. The pipe punching machine according to claim 7, characterized in that, The first anti-deformation component (12) further includes: The first connector (13) is sequentially inserted through the first upper template (8) and the first anti-deformation plate (9). The first connector (13) is connected to the first upper template (8). The first anti-deformation plate (9) is movably disposed relative to the first connector (13). The first spring (14) is sleeved on the first connector (13), and the two ends of the first spring (14) are respectively connected to the first upper template (8) and the first anti-deformation plate (9); The second anti-deformation component also includes: The second connector is sequentially inserted through the second upper template and the second anti-deformation plate. The second connector is connected to the second upper template, and the second anti-deformation plate is movably disposed relative to the second connector. The second spring is sleeved on the second connector, and its two ends are respectively connected to the second upper template and the second anti-deformation plate.

9. The pipe punching machine according to claim 1, characterized in that, The pipe punching machine also includes a positioning plate (16), which is movably mounted on the lower die core.

10. The pipe punching machine according to claim 1, characterized in that, The pipe punching machine further includes a slider (18), which is movably disposed inside the lower die core (1).

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