Round pipe notch cutting die

Abstract

The utility model provides a round pipe notching die. The round pipe notching die is characterized in that a positioning blanking core is arranged in the center of the top of a lower die plate; the positioning discharging module is connected to one side of the positioning blanking core through a bolt; the upper die plate is arranged over the lower die plate, and a punching machine connecting block is arranged in the center of the top of the upper die plate. The blanking module is connected to the center of the bottom end of the upper die plate through bolts, the bottom of the blanking module vertically extends downwards to be clamped in the positioning blanking core, and the length of a round pipe needing to be machined can be controlled through the positioning discharging module. The redundant length of the round pipe needing to be machined can be cut off through the blanking module, and an arc-shaped notch is blanked in one end of the round pipe.

Description

Technical Field

[0001] The utility model relates to the field of punching dies, in particular to the technical field of round tube punching, and specifically is a round tube cutting die. Background Art

[0002] It is necessary to process arc-shaped notches at both ends of the formed hollow metal round tube to facilitate the subsequent butt joint during welding between the tube bodies. Conventional laser cutting machines have low processing efficiency and require long processing time. In addition, the cut surface will turn black, affecting the appearance. The hardness of the cut surface will increase, affecting the subsequent welding process, and the concentricity of the cut notch cannot be ensured. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a round tube cutting die to solve the difficulties of the prior art.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a round tube cutting die, comprising:

[0005] A lower template 1, wherein a positioning punching core 2 is arranged in the middle of the top of the lower template 1;

[0006] A positioning and unloading module 3, wherein the positioning and unloading module 3 is arranged on one side of the positioning and blanking core 2 by bolt connection;

[0007] An upper template 4, wherein the upper template 4 is arranged directly above the lower template 1, and a punching machine connecting block 41 is arranged in the middle of the top of the upper template 4;

[0008] The punching die set 5 is connected by bolts and arranged in the middle of the bottom end of the upper die plate 4 . The bottom of the punching die set 5 extends vertically downward and is clamped in the positioning punching core 2 .

[0009] According to a preferred embodiment, the punch connection block 41 is in an inverted T shape.

[0010] According to the preferred embodiment, a feeding hole 21 is opened through the middle of one side of the positioning punching core 2, a cutting groove 22 is opened vertically in the middle of the top of the positioning punching core 2, and the cutting groove 22 is communicated with the feeding hole 21, and a discharge groove 23 is opened vertically at the bottom of the positioning punching core 2, and the top of the discharge groove 23 is communicated with the feeding hole 21, and the bottom of the discharge groove 23 extends downward through the lower template 1.

[0011] According to the preferred embodiment, a threaded hole 24 is provided at the top of the positioning punching core 2 on one side of the cutting groove 22 close to the positioning discharge module 3 , the bottom of the threaded hole 24 is connected to the feeding hole 21 , and a locking knob 25 is provided in the threaded hole 24 .

[0012] According to a preferred embodiment, the cutting groove 22 is square on one side away from the positioning and discharging module 3, and the other side of the cutting groove 22 is arc-shaped.

[0013] According to the preferred embodiment, the positioning and discharging module 3 includes: a discharging block 31, a V-shaped balancing block 32 and a scale line 33. One side of the discharging block 31 is connected by bolts and is arranged on the top of the lower template 1 on one side of the positioning punching core 2. A V-shaped balancing block 32 is provided in the middle of the discharging block 31 with a clearance fit, and a scale line 33 is drawn on one side of the top of the discharging block 31.

[0014] According to the preferred embodiment, the bottom end of the V-shaped balancing block 32 and the bottom end of the lower template 1 are in the same plane.

[0015] According to the preferred embodiment, the V-shaped balancing block 32 moves forward and backward along the discharging block 31 .

[0016] According to a preferred embodiment, the punching die set 5 comprises:

[0017] A mounting block 51, which is bolted and arranged in the middle of the bottom of the upper template 4, and a mounting square groove 52 is provided in the middle of the bottom of the mounting block 51, and a clearance square groove 53 is provided at the bottom of the mounting block 51 just above the locking knob 25;

[0018] The punch rod 54 has a top that is interference fit in the mounting square groove 52, and a bottom that extends toward the discharge groove 23. The bottom end of the punch rod 54 is a triangular cutting blade 55. A diamond punch 56 is provided on the bottom of the punch rod 54 near the V-shaped balance block 32, and the diamond punch 56 is arc-shaped near the discharge block 31.

[0019] The utility model adopts a lower template, a positioning blanking core, a positioning discharge module, an upper template and a blanking module. By installing the lower template and the upper template on the blanking machine, it is necessary to move the V-shaped balance block away from the positioning blanking core along the scale line to the scale of the required length of the round tube, and then align one end of the round tube to be processed with the end of the V-shaped balance block away from the positioning blanking core. After adjusting the V-shaped balance block, at the top of the discharge block on the side of the V-shaped balance block away from the positioning blanking core, it is necessary to tighten the locking knob to limit the round tube to be processed to prevent The round tube is displaced during punching, and the punching machine is driven to control the upper template to drive the punch rod to press down to complete the processing of the arc-shaped notch on one side of the round tube. Some of the waste generated during processing will enter the discharge trough, and the other part of the waste will be stuck in the side of the penetration hole away from the V-shaped balance block, which can be pulled out directly by hand. After pulling out the round tube, align the punched side with the end of the V-shaped balance block away from the positioning punching core in the opposite direction. Repeat the punching steps to complete the processing of the arc-shaped notches at both ends of the round tube. The processing efficiency is high and it will not affect the hardness and color of the punching surface.

[0020] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 Shown is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0023] Figure 3 Shown is an enlarged schematic diagram of the three-dimensional structure of the positioning punching core in the utility model;

[0024] Figure 4 The display is an enlarged schematic diagram of the three-dimensional structure of the punching die set in the present utility model;

[0025] Description of symbols

[0026] 1. Download the template;

[0027] 2. Positioning punching core; 21. Passing hole; 22. Cutting groove; 23. Discharge groove; 24. Threaded hole; 25. Locking knob;

[0028] 3. Positioning discharge module; 31. Discharge block; 32. V-shaped balance block; 33. Scale line;

[0029] 4. Upper template; 41. Punch press connecting block;

[0030] 5. Punching die set; 51. Mounting block; 52. Mounting square slot; 53. Make way square slot; 54. Punch rod; 55. Triangular cutting blade; 56. Diamond punch; DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0033] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] The utility model proposes a round tube notching die for use in a punching process. The utility model does not limit the type of the length of the round tube to be punched, but the structure of the lower template 1, the positioning punching core 2, the positioning discharge module 3, the upper template 4 and the punching module group 5 is particularly suitable for processing arc-shaped notches at both ends of a hollow metal round tube.

[0035] In general, the circular tube cutting die proposed in the present invention mainly comprises: a lower die plate 1, a positioning punching core 2, a positioning discharge module 3, an upper die plate 4 and a punching module 5, wherein, Figure 1 , which shows the arrangement relationship of the lower template 1, the positioning and punching core 2, the positioning and discharge module 3, the upper template 4 and the punching module group 5.

[0036] When the circular tube cutting die proposed by the utility model is used, the lower template 1 and the upper template 4 need to be installed on the punching machine. If the circular tube to be processed has a length requirement, the V-shaped balance block 32 needs to be moved along the scale line 33 away from the positioning punching core 2 to the scale of the required length of the circular tube. It should be noted that the scale line 33 takes the end face of the diamond punch 56 close to the punch rod 54 as the 0 scale point, and then aligns one end of the circular tube to be processed with the end of the V-shaped balance block 32 away from the positioning punching core 2. After adjusting the V-shaped balance block 32, a pad can be placed on the top of the discharge block 31 on the side of the V-shaped balance block 32 away from the positioning punching core 2 for convenience. After the above-mentioned alignment steps of the circular tube to be processed, it is necessary to tighten the locking knob 25 to limit the circular tube to be processed to prevent the circular tube from being displaced during punching. The punching machine is driven to control the upper template 4 to drive the punch rod 54 to be pressed down to complete the processing of the arc-shaped notch on one side of the circular tube. Part of the waste generated during processing will enter the discharge groove 23, and the other part of the waste will be stuck in the penetration hole 21 away from the side of the V-shaped balance block 32, and can be pulled out directly by hand. After the circular tube is pulled out, the punched side is aligned in the opposite direction with the end of the V-shaped balance block 32 away from the positioning punching core 2, and the punching steps are repeated to complete the processing of the arc-shaped notches at both ends of the circular tube.

[0037] The above-mentioned positioning punching core 2 is arranged in the middle of the top of the lower template 1, and a feeding hole 21 is opened in the middle of one side of the positioning punching core 2, and a cutting groove 22 is vertically opened in the middle of the top of the positioning punching core 2. The cutting groove 22 is square on the side away from the positioning and discharging module 3, and the other side of the cutting groove 22 is arc-shaped. The cutting groove 22 is connected with the feeding hole 21, and a discharge groove 23 is vertically opened at the bottom of the positioning punching core 2. The top of the discharge groove 23 is connected with the feeding hole 21, and the bottom of the discharge groove 23 extends downward through the lower template 1. A threaded hole 24 is opened on the top of the positioning punching core 2, which is located on the side of the cutting groove 22 close to the positioning and discharging module 3. The bottom of the threaded hole 24 is connected with the feeding hole 21, and a locking knob 25 is passed through the threaded hole 24 to prevent the round tube from being displaced during punching and affecting the processing accuracy.

[0038] The positioning and discharging module 3 is connected by bolts on one side of the positioning and punching core 2. The positioning and discharging module 3 includes: a discharging block 31, a V-shaped balancing block 32 and a scale line 33. One side of the discharging block 31 is connected by bolts on the top of the lower template 1 and is located on one side of the positioning and punching core 2. A V-shaped balancing block 32 is fitted in the middle gap of the discharging block 31. A scale line 33 is marked on one side of the top of the discharging block 31, so that the round tube cutting die can accurately adjust the length of the round tube to be processed.

[0039] The above-mentioned punching die set 5 is arranged in the middle of the bottom end of the upper template 4 by bolt connection, and the bottom of the punching die set 5 extends vertically downward and is clamped in the positioning punching core 2. The punching die set 5 includes: a mounting block 51, a punch rod 54, a triangular cutting blade 55 and a diamond punch 56, wherein the mounting block 51 is arranged in the middle of the bottom of the upper template 4 by bolt connection, a mounting square groove 52 is opened in the middle of the bottom of the mounting block 51, and a yielding square groove 53 is arranged at the bottom of the mounting block 51 just above the locking knob 25. The top of the punch rod 54 is interference fit in the mounting square groove 52, and the bottom of the punch rod 54 extends toward the discharge groove 23. The bottom end of the punch rod 54 is a triangular cutting blade 55, which can cut off the excess length of the round tube, and a diamond punch 56 is arranged on the side of the bottom of the punch rod 54 close to the V-shaped balance block 32. The diamond punch 56 is arc-shaped close to the discharge block 31, which is convenient for processing arc-shaped notches.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A round tube cutting die, characterized in that: include: A lower template (1), wherein a positioning punching core (2) is arranged in the middle of the top of the lower template (1); A positioning discharge module (3), wherein the positioning discharge module (3) is arranged on one side of the positioning punching core (2) through a bolt connection; An upper template (4), the upper template (4) being arranged directly above the lower template (1), and a punching machine connecting block (41) being arranged in the middle of the top of the upper template (4); The punching die set (5) is arranged in the middle of the bottom end of the upper die plate (4) by bolt connection, and the bottom of the punching die set (5) extends vertically downward and is clamped in the positioning punching core (2).

2. The round tube cutting die according to claim 1, characterized in that: A material penetration hole (21) is provided in the middle of one side of the positioning punching core (2), a cutting groove (22) is vertically provided in the middle of the top of the positioning punching core (2), the cutting groove (22) is communicated with the material penetration hole (21), a material discharge groove (23) is vertically provided at the bottom of the positioning punching core (2), the top of the material discharge groove (23) is communicated with the material penetration hole (21), and the bottom of the material discharge groove (23) extends downward and penetrates the lower template (1).

3. The round tube cutting die according to claim 2, characterized in that: A threaded hole (24) is provided at the top of the positioning punching core (2) and located near the cutting groove (22) and the positioning discharge module (3). The bottom of the threaded hole (24) is connected to the feed hole (21). A locking knob (25) is provided in the threaded hole (24).

4. The round tube cutting die according to claim 3, characterized in that: The cutting groove (22) is square on one side away from the positioning and discharging module (3), and is arc-shaped on the other side.

5. The round tube cutting die according to claim 4, characterized in that: The positioning material discharge module (3) comprises: a material discharge block (31), a V-shaped balancing block (32) and a scale line (33); one side of the material discharge block (31) is arranged on the top of the lower template (1) and located on one side of the positioning punching core (2) through bolt connection; a V-shaped balancing block (32) is sleeved in the middle of the material discharge block (31) in a clearance fit; and a scale line (33) is marked on one side of the top of the material discharge block (31).

6. The round tube cutting die according to claim 5, characterized in that: The punching die set (5) comprises: A mounting block (51), the mounting block (51) being arranged in the middle of the bottom of the upper template (4) by bolt connection, a mounting square groove (52) being provided in the middle of the bottom of the mounting block (51), and a clearance square groove (53) being provided in the bottom of the mounting block (51) just above the locking knob (25); A punch rod (54), the top of which is interference-fitted in the mounting square groove (52), the bottom of which extends toward the discharge groove (23), the bottom of which is a triangular cutting blade (55), a diamond punch (56) is provided on the bottom of the punch rod (54) near the V-shaped balance block (32), and the diamond punch (56) is arc-shaped on the side near the discharge block (31).

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