Bent pipe punching machine

Abstract

The utility model relates to the technical field of bent pipes, and discloses a bent pipe punching machine which comprises a lower die and an upper die, a sliding groove is fixedly formed in the lower die, a first spring is fixedly connected to one side in the sliding groove, and a sliding block is fixedly connected to the end, away from the sliding groove, of the first spring. The end, away from the first spring, of the sliding block is fixedly connected with a material abutting block, two second springs are fixedly connected into the material abutting block, the upper ends of the two second springs are fixedly connected with a spring bolt, a lock catch is arranged at the upper end of the lower die in a penetrating mode, and a push block is fixedly connected to the bottom end of the upper die. According to the bent pipe punching machine, through the arrangement of the first spring, the sliding block, the material abutting block, the second spring, the spring bolt and the lock catch, the bent pipe punching machine has the advantage that a punched bent pipe is pushed out, continuous operation is facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bent pipes, specifically a bent pipe punching machine. Background Art

[0002] A bent pipe is a pipe bent using a complete set of equipment. Currently, bent pipes are used in all kinds of machinery and pipelines, so bent pipes are widely used in industries such as transportation, machinery, and chemical engineering. According to the actual usage, various machining processes need to be carried out on the bent pipe, including bending, flanging, punching, welding, etc. When the bent pipe is in use, it needs to be connected to various interfaces and pipelines. Therefore, punching on the surface of the bent pipe is a relatively common machining process.

[0003] A prior patent (publication number: CN214290337U) discloses a punching die for a bent pipe, which includes a fixed bottom plate. A punching rod for inserting the bent pipe and a support frame for defining the position degree of the bent pipe are arranged on the fixed bottom plate. The punching rod is fixedly arranged on the fixed bottom plate, and a blanking hole is opened on the punching rod. The support frame includes a support seat for supporting the bent pipe and an abutting seat for defining the bent pipe. The abutting seat includes two extension rods fixedly connected to the fixed bottom plate and a limiting block for abutting against the bent pipe. The support seat and the limiting block are fixedly arranged on the extension rods.

[0004] The above comparative document points out that the device reduces the deformation of the bent pipe during punching through the inserted pipe and the blanking hole opened on the inserted pipe, supports the bent pipe on the side far from the punching process through the support frame, and ensures the position degree of the connection holes on both sides of the bent pipe through the symmetrically arranged abutting seats on both sides of the inserted pipe. However, when removing the punched bent pipe from the device, since the bent pipe may be stuck inside the die after being squeezed, it is difficult to remove the punched bent pipe, which affects the production efficiency of the bent pipe. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the present application provides a bent pipe punching machine, which has the advantages of high-efficiency production, etc., and solves the problem that when removing the punched bent pipe from the device, since the bent pipe may be stuck inside the die after being squeezed, it is difficult to remove the punched bent pipe, which affects the production efficiency of the bent pipe.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a pipe bending and punching machine, comprising a lower mold and an upper mold, the lower mold having a fixed slide groove inside, a first spring fixedly connected to one side of the slide groove, a slider fixedly connected to the end of the first spring away from the slide groove, a stop block fixedly connected to the end of the slider away from the first spring, two second springs fixedly connected to the stop block, locking tongues fixedly connected to the upper ends of the two second springs, a lock buckle running through the upper end of the lower mold, and a push block fixedly connected to the bottom end of the upper mold.

[0007] Through the above scheme, through the arrangement of the first spring, the slider, the material block, the second spring, the lock tongue and the lock buckle, when placing the bent pipe, the bent pipe is used to push the material block, and the first spring is compressed by the slider. When the material block moves, the lock tongue at the upper end of the material block is squeezed and shrinks into the inside of the material block. When the slider slides to a certain extent in the slide groove, the lock tongue corresponds to the lock buckle, and the second spring restores the deformation to insert the lock tongue into the inside of the lock buckle to fix the material block. When stamping, the upper mold moves downward to insert the 2 push blocks into the inside of the lock buckle. Then, the lock tongue is squeezed to separate from the lock buckle, and the upper mold rises after stamping. The bent pipe is no longer restricted by the upper mold, and the stamped bent pipe is pushed out of the lower mold through the first spring to restore the deformation. The device has the advantage of pushing out the stamped bent pipe, which is convenient for continuous operation and improves work efficiency.

[0008] Furthermore, the lower mold has a first mounting groove and a second mounting groove at both ends of one side, and two threaded holes are respectively provided inside the two first mounting grooves and the second mounting grooves, and the two first mounting grooves are slidably connected to the second positioning blocks, and the two second mounting grooves are slidably connected to the first positioning blocks.

[0009] Through the above solution, the first positioning block is installed in the second installation groove, and the second positioning block is installed in the first installation groove. Through modular design, when the first positioning block or the second positioning block is damaged, it can be replaced separately.

[0010] Furthermore, fixing bolts are slidably connected inside the two first positioning blocks and the second positioning blocks respectively, and the plurality of fixing bolts are threadedly connected to the threaded holes.

[0011] Through the above solution, the fixing bolts are used to fix the first positioning block and the second positioning block.

[0012] Furthermore, a placement groove is provided at the upper end of the lower mold.

[0013] Through the above scheme, the placement groove is used to place the bent pipe.

[0014] Furthermore, four positioning holes are provided at the upper end of the lower mold.

[0015] Through the above solution, the positioning holes are provided for positioning the upper die.

[0016] Furthermore, four positioning columns are fixedly connected to the bottom end of the upper die. A pressing block is fixedly connected to the bottom end of the upper die. A first punching rod is fixedly connected to the bottom end of the pressing block. Second punching rods are fixedly connected to both sides of the bottom end of the upper die. Four connecting modules are fixedly connected to the upper end of the upper die.

[0017] Through the above solution, the pressing block is provided for fixing the bent pipe between the upper die and the lower die. The first punching rod and the second punching rods are used for punching the bent pipe.

[0018] Furthermore, all four positioning columns are slidably arranged inside the positioning holes, and the push block corresponds to the lock.

[0019] Through the above solution, the positioning columns slide inside the positioning holes, thereby restricting the position of the upper die.

[0020] Furthermore, the slider is slidably arranged inside the chute.

[0021] Through the above solution, the slider slides inside the slider and is reset by the first spring.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0023] In this bent pipe punching machine, through the arrangement of the first spring, the slider, the material pressing block, the second spring, the lock tongue and the lock, when placing the bent pipe, the bent pipe is used to push the material pressing block, the first spring is compressed by the slider. When the material pressing block moves, the lock tongue at the upper end of the material pressing block is squeezed and retracts into the material pressing block. When the slider slides inside the chute to a certain extent, the lock tongue corresponds to the lock, and the second spring restores its deformation to make the lock tongue insert into the lock to fix the material pressing block. When stamping, the upper die moves downward to make the 2 push blocks insert into the lock. Then the lock tongue is squeezed to disengage from the lock. After stamping is completed and the upper die rises, the bent pipe is no longer restricted by the upper die. The stamped bent pipe is pushed out of the lower die by the restoration of the first spring. This device has the advantage of pushing out the stamped bent pipe, facilitating continuous operation, improving work efficiency, and through modular design, when the first positioning block or the second positioning block is damaged, it can be replaced separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the structure of the present application;

[0025] Figure 2 is the internal structural schematic diagram of the structure of the present application;

[0026] Figure 3 is the installation structural schematic diagram of the positioning device of the structure of the present application;

[0027] Figure 4 This is a schematic diagram of the upper die structure of the present application structure.

[0028] In the figure:

[0029] 1. Lower die; 2. Slide groove; 3. First spring; 4. Slide block; 5. Material pressing block; 6. Second spring; 7. Lock tongue; 8. Upper die; 9. Pushing block; 10. Lock; 11. First installation groove; 12. Second installation groove; 13. Threaded hole; 14. First positioning block; 15. Second positioning block; 16. Fixed bolt; 17. Placing groove; 18. Positioning hole; 19. Positioning column; 20. Pressing block; 21. First stamping rod; 22. Second stamping rod; 23. Connection module. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , in the pipe bending and punching machine of this embodiment, it includes a lower die 1 and an upper die 8. A slide groove 2 is fixedly opened inside the lower die 1. One side inside the slide groove 2 is fixedly connected with a first spring 3. The end of the first spring 3 away from the slide groove 2 is fixedly connected with a slide block 4. The end of the slide block 4 away from the first spring 3 is fixedly connected with a material pressing block 5. The slide block 4 drives the material pressing block 5 to move. The slide block 4 moves in the slide groove 2 and is reset by the first spring 3. Two second springs 6 are fixedly connected inside the material pressing block 5. The upper ends of the two second springs 6 are fixedly connected with a lock tongue 7. The lock tongue 7 can move in the material pressing block 5 through the second spring 6. A lock 10 is penetrated and opened at the upper end of the lower die 1. The lock 10 is used to cooperate with the lock tongue 7 to fix the position of the material pressing block 5. The bottom end of the upper die 8 is fixedly connected with a pushing block 9. The pushing block 9 is used to push the lock tongue 7 to release the contact restriction of the material pressing block 5.

[0032] Please refer to Figure 3, on both ends of one side of the lower die 1, a first installation groove 11 and a second installation groove 12 are respectively opened. Two threaded holes 13 are respectively opened inside the two first installation grooves 11 and the second installation groove 12. A second positioning block 15 is slidably connected inside each of the two first installation grooves 11. A first positioning block 14 is slidably connected inside each of the two second installation grooves 12. The first positioning block 14 is installed inside the second installation groove 12, and the second positioning block 15 is installed inside the first installation groove 11. Through modular design, when the first positioning block 14 or the second positioning block 15 is damaged, it can be replaced separately. A fixing bolt 16 is slidably connected inside each of the two first positioning blocks 14 and the second positioning block 15. A plurality of fixing bolts 16 are threadedly connected to the threaded holes 13. The fixing bolts 16 are used to fix the first positioning block 14 and the second positioning block 15. A placement groove 17 is opened at the upper end of the lower die 1. The placement groove 17 is provided for placing the bent pipe. Four positioning holes 18 are opened at the upper end of the lower die 1. The positioning holes 18 are provided for positioning the upper die 8.

[0033] Please refer to Figure 1 , Figure 2 and Figure 4 , four positioning columns 19 are fixedly connected to the bottom end of the upper die 8. A pressing block 20 is fixedly connected to the bottom end of the upper die 8. A first punching rod 21 is fixedly connected to the bottom end of the pressing block 20. Two second punching rods 22 are fixedly connected to both sides of the bottom end of the upper die 8. Four connecting modules 23 are fixedly connected to the upper end of the upper die 8. The pressing block 20 is provided for fixing the bent pipe between the upper die 8 and the lower die 1. The first punching rod 21 and the second punching rods 22 are used for punching the bent pipe. All four positioning columns 19 are slidably arranged inside the positioning holes 18. The push block 9 corresponds to the lock 10. The positioning columns 19 slide inside the positioning holes 18, thereby restricting the position of the upper die 8. The slider 4 is slidably arranged inside the chute 2. The slider 4 slides inside the chute 2 and is reset by the first spring 3.

[0034] In this embodiment, for the elbow punching machine, through the arrangement of the first spring 3, the slider 4, the material pressing block 5, the second spring 6, the lock tongue 7 and the lock catch 10, when placing the elbow, the material pressing block 5 is pushed by the elbow, the first spring 3 is compressed through the slider 4. When the material pressing block 5 moves, the lock tongue 7 at the upper end of the material pressing block 5 is squeezed and retracts into the interior of the material pressing block 5. When the slider 4 slides in the chute 2 to a certain extent, the lock tongue 7 corresponds to the lock catch 10, and the lock tongue 7 is inserted into the interior of the lock catch 10 by the restoration of the deformation of the second spring 6 to fix the material pressing block 5. When stamping, the upper die 8 moves downward to make the push block 9 insert into the interior of the lock catch 10, and then the lock tongue 7 is squeezed to disengage from the lock catch 10. After stamping is completed and the upper die 8 rises, the elbow is no longer restricted by the upper die 8, and the stamped elbow is pushed out of the lower die 1 by the restoration of the deformation of the first spring 3. This device has the advantage of pushing out the stamped elbow, facilitating continuous operation, improving work efficiency, and through modular design, when the first positioning block 14 or the second positioning block 15 is damaged, it can be replaced separately.

[0035] It should be noted that two groups of positioning devices are provided in this device, which can punch holes in elbows with different bending directions.

[0036] The working principle of the above embodiment is as follows:

[0037] Place the lower die 1 in an appropriate position, position it in the corresponding first installation groove 11 and second installation groove 12 through the first positioning block 14 and the second positioning block 15, and fix it in the appropriate position with the fixing bolt 16. Place the elbow to be punched in the placement groove 17, align the upper die 8 with the lower die 1, ensure that the positioning post 19 is slidably arranged inside the positioning hole 18, so as to position the upper die 8. Lower the upper die 8 so that the pressing block 20 contacts and fixes the elbow to ensure that the elbow is stably placed between the upper die 8 and the lower die 1. Continue to lower the upper die 8 so that the first punching rod 21 and the second punching rod 22 perform punching operations on the elbow. During the punching process, the push block 9 at the bottom end of the upper die 8 will contact and push the lock tongue 7 to disengage it from the lock catch 10, thereby releasing the fixation of the material pressing block 5. After punching is completed, the upper die 8 rises. At this time, the slider 4 is reset under the action of the first spring 3, pushing the material pressing block 5 and the elbow to move, and the elbow is pushed out of the placement groove 17 of the lower die 1. At this time, the punched elbow can be taken off.

[0038] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Bend pipe punching machine, including lower die (1) and upper die (8), characterized in that: Inside the lower die (1), a chute (2) is fixedly formed. On one side inside the chute (2), a first spring (3) is fixedly connected. The end of the first spring (3) far from the chute (2) is fixedly connected to a slider (4). The end of the slider (4) far from the first spring (3) is fixedly connected to a material blocking block (5). Inside the material blocking block (5), two second springs (6) are fixedly connected. The upper ends of the two second springs (6) are fixedly connected to a locking tongue (7). A locking buckle (10) is formed through the upper end of the lower die (1). A pushing block (9) is fixedly connected to the bottom end of the upper die (8).

2. The elbow punching machine according to claim 1, wherein: On both ends of one side of the lower die (1), a first installation groove (11) and a second installation groove (12) are respectively formed. Inside the two first installation grooves (11) and the second installation groove (12), two threaded holes (13) are respectively formed. Inside the two first installation grooves (11), a second positioning block (15) is slidably connected. Inside the two second installation grooves (12), a first positioning block (14) is slidably connected.

3. The elbow punching machine according to claim 2, wherein: Inside the two first positioning blocks (14) and the second positioning blocks (15), fixing bolts (16) are respectively slidably connected. A plurality of the fixing bolts (16) are threadedly connected to the threaded holes (13).

4. The elbow punching machine according to claim 1, wherein: A placement groove (17) is formed at the upper end of the lower die (1).

5. The elbow punching machine according to claim 1, characterized in that: Four positioning holes (18) are formed at the upper end of the lower die (1).

6. The elbow punching machine according to claim 1, characterized in that: Four positioning posts (19) are fixedly connected to the bottom end of the upper die (8). A pressing block (20) is fixedly connected to the bottom end of the upper die (8). A first punching rod (21) is fixedly connected to the bottom end of the pressing block (20). On both sides of the bottom end of the upper die (8), second punching rods (22) are fixedly connected. Four connecting modules (23) are fixedly connected to the upper end of the upper die (8).

7. The elbow punching machine according to claim 6, wherein: The four positioning posts (19) are all slidably arranged inside the positioning holes (18). The pushing block (9) corresponds to the locking buckle (10).

8. The elbow punching machine according to claim 1, characterized in that: The slider (4) is slidably arranged inside the chute (2).

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