An angle steel corner cutting mold

Abstract

This invention provides an angle steel corner cutting mold to solve the problems of short tool life due to large punching impact, poor processing consistency due to lack of precise control, and low production efficiency due to poor material discharge in existing angle steel corner cutting devices. The device includes a tool holder, consisting of a tool holder base and a tool holder platform fixedly connected above the tool holder base. The tool holder base has discharge grooves distributed through both sides of the tool holder base. An upper tool holder is slidably connected to the tool holder platform in a vertical direction and has an upper cutting blade fixedly mounted thereon. A lower tool holder is fixedly connected to the tool holder base and has mounting holes that communicate with the discharge grooves, and a lower cutting blade located directly below the upper cutting blade is fixed inside the lower tool holder. A buffer assembly and a limiting assembly are connected between the upper tool holder and the tool holder platform to buffer the upper tool holder and limit its maximum upward and downward sliding stroke. Furthermore, the double-sided material discharge design of this device enhances the adaptability of the corner cutting mold under different production line layouts.

Description

Technical Field

[0001] This utility model relates to the technical field of angle steel cutting devices, specifically to an angle steel corner cutting mold. Background Technology

[0002] Angle steel, as a basic structural material, is widely used in steel structure fields such as construction, bridges, power towers and machinery manufacturing. During the processing of angle steel, it is often necessary to cut corners at its ends or specific locations to facilitate subsequent splicing, welding or installation. Currently, the corner cutting of angle steel is usually completed by stamping dies or cutting equipment.

[0003] However, existing methods of cutting angle steel generally have the following shortcomings:

[0004] 1) During the punching process, a huge impact force is generated between the tool and the workpiece. This impact not only generates a lot of noise and vibration, but also causes the tool edge to wear and break quickly, significantly shortening the tool's service life and increasing production costs.

[0005] 2) Traditional stamping equipment often lacks precise stroke control and buffering mechanisms, which can easily lead to inconsistent cutting depth and unstable cutting quality due to improper operation or cumulative errors caused by long-term operation of the equipment, thus affecting the assembly accuracy of the final product.

[0006] 3) Waste generated during the cutting process tends to accumulate inside the mold or on the worktable. If it is not cleaned in time, it may affect the positioning accuracy of subsequent workpieces or even block the mold, requiring frequent machine stops for manual cleaning, thereby reducing the overall production efficiency and automation level. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, this utility model provides an angle steel corner cutting mold, which aims to solve the problems of short tool life due to large punching impact, poor processing consistency due to lack of precise control, and low production efficiency due to poor material discharge.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An angle steel corner cutting die, comprising:

[0010] The tool holder consists of a tool holder base and a tool holder platform fixedly connected above the tool holder base. The tool holder base is provided with a discharge groove, which is distributed through both sides of the tool holder base.

[0011] The upper blade holder is slidably connected to the blade holder in the vertical direction, and the upper cutting blade is fixedly connected to the upper blade holder;

[0012] The lower cutter holder is fixedly connected to the cutter holder. The lower cutter holder is provided with a mounting hole, which is connected to the discharge groove and has a lower cutter fixedly connected inside it, located directly below the upper cutter.

[0013] The buffer assembly, connected between the upper tool holder and the tool post, is used to buffer the upper tool holder;

[0014] The limiting component, connected between the upper tool holder and the tool post, is used to limit the maximum upward and downward sliding stroke of the upper tool holder.

[0015] Furthermore, the buffer assembly includes a guide rod and a buffer spring. The tool holder is provided with a receiving cavity distributed along the height direction. The guide rod is distributed along the vertical direction, with its upper end fixedly connected to the upper tool holder and its lower end located in the receiving cavity. The buffer spring is sleeved on the outside of the guide rod and its two ends along the length direction are respectively connected to the upper tool holder and the lower end face of the receiving cavity.

[0016] Furthermore, the limiting component includes a limiting block and a limiting rod. The limiting block is fixedly connected to the tool holder. The limiting block is provided with sliding holes distributed vertically. The limiting rod is slidably connected to the sliding holes. The upper end of the limiting rod is fixedly connected to the upper tool holder, and the lower end is provided with a protrusion with an outer diameter larger than the diameter of the sliding holes.

[0017] Furthermore, the lower cutter consists of two sets of long lower cutters and short lower cutters fixedly connected to the inner wall of the mounting hole, and the two sets of long lower cutters, short lower cutters, and the side wall of the mounting hole form a through hole that matches the shape of the upper cutter.

[0018] Furthermore, the bottom surface of the discharge trough is an inclined surface that is higher in the middle and lower on both sides.

[0019] Furthermore, a connecting shaft is fixedly connected above the upper tool holder for connecting to an external longitudinal drive assembly.

[0020] Furthermore, the upper knife holder and the upper cutting blade, the lower knife holder and the lower cutting blade, and the lower knife holder and the knife post can all be detachably and fixedly connected.

[0021] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0022] 1. By setting up a buffer component, the high-speed downward-moving upper tool holder can be effectively buffered at the end of the punching process, absorbing and dissipating most of the impact energy. This greatly reduces the instantaneous impact force on the upper and lower cutting edges when they contact the workpiece and at the end of the stroke, effectively preventing edge breakage and rapid wear, thereby significantly extending the tool's service life, reducing the frequency of tool replacement, and directly reducing the company's production and operating costs;

[0023] 2. By setting limit components, the highest and lowest stop points of the upper tool holder's return stroke can be precisely controlled, ensuring that the starting position of each work cycle remains highly consistent, thereby guaranteeing the consistency of cutting depth and the stability of the quality of processed products. At the same time, this limit function also effectively prevents the upper tool holder from moving excessively upward due to excessive driving force or spring force, avoiding potential equipment damage or safety risks.

[0024] 3. The discharge chute adopts an inclined structure that is high in the middle and low on both sides. This structure is connected to the mounting hole of the lower blade holder, so that the waste generated after cutting can be smoothly discharged along the inclined surface to both sides of the mold by its own gravity. This effectively avoids the accumulation and blockage of waste inside the mold, eliminates the need for frequent shutdowns for cleaning, greatly improves the continuous working capacity and overall production efficiency of the equipment, and the bidirectional discharge design also enhances the adaptability of the mold under different production line layouts.

[0025] 4. The blade holder and the frame, as well as the cutter and the blade holder, are fixedly connected by bolts or other detachable methods. Operators can easily and quickly disassemble and install them, which greatly simplifies the maintenance process and shortens the downtime for equipment maintenance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a cross-sectional view of the present invention in three-dimensional form;

[0029] Figure 3 This is a top view of the present invention;

[0030] Figure 4 for Figure 3 Sectional view of AA;

[0031] Figure 5 This is a schematic diagram of the tool holder structure;

[0032] Figure 6 This is a schematic diagram of the upper tool holder structure;

[0033] Figure 7 This is a schematic diagram of the lower tool holder structure.

[0034] in:

[0035] 1-Tool holder, 101-Tool holder base, 102-Tool holder table, 103-Discharge groove, 104-Slide rail, 105-Receiving cavity, 106-Limiting groove;

[0036] 2-Upper tool holder, 201-Slider, 202-Connecting shaft;

[0037] 3-Upper cutter;

[0038] 4-Lower tool holder, 401-Mounting hole;

[0039] 5-Downward cutter, 501-Long downward cutter, 502-Short downward cutter, 503-Through hole;

[0040] 6-Buffer assembly, 601-Guide rod, 602-Buffer spring;

[0041] 7-Limit assembly, 701-Limit block, 702-Limit rod;

[0042] 8-Connecting plate. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0044] like Figures 1-7 As shown, this utility model provides an angle steel corner cutting mold, including a knife holder 1, an upper knife seat 2, an upper cutting blade 3, a lower knife seat 4, and a lower cutting blade 5. The upper knife seat 2 is slidably connected to the knife holder 1, and the lower knife seat 4 is fixedly connected to the lower part of the knife holder 1. The upper cutting blade 3 and the lower cutting blade 5 are fixedly connected to the upper knife seat 2 and the lower knife seat 4, respectively. A buffer component 6 and a limiting component 7 are provided between the upper knife seat 2 and the knife holder 1.

[0045] Specifically, the knife holder 1 is as follows Figures 1-2 , Figures 4-5 As shown, it consists of a tool holder 101 and a tool holder platform 102 integrally formed on the upper left side of the tool holder 101. The tool holder 101 is provided with a discharge groove 103, which is distributed through the tool holder 101 on both sides and the lower end face is distributed with the middle being higher and the two sides being lower. The tool holder platform 102 is provided with a receiving cavity 105, which is distributed along the height direction and has openings at the top and right side. A slide rail 104 is also fixedly connected to the right side of the tool holder platform 102. The length of the slide rail 104 is distributed along the vertical direction, and a groove is formed between the slide rail 104 and the right side face of the tool holder platform 102.

[0046] like Figures 1-2 , Figures 4-6 As shown, a slider 201 is integrally formed on the left side of the upper tool holder 2. The slider 201 slide rail 104 and the right side of the tool holder 102 form a sliding groove and slide up and down. The upper cutter 3 is detachably fixed to the lower part of the upper tool holder 2 by bolts. The length of the upper cutter 3 is distributed in the left and right direction and the lower end face is distributed with the left side lower and the right side higher. The left side of the upper cutter 3 is also fixedly connected to the tool holder 101 by bolts to further improve the stability of the upper cutter 3. In addition, a connecting shaft 202 is detachably fixed to the upper part of the upper tool holder 2 by bolts so that it can be connected to the longitudinal drive component such as the longitudinal drive cylinder through the connecting shaft 202 to drive the upper tool holder 2 to slide up and down along the tool holder 102.

[0047] like Figures 1-7 As shown, the lower tool holder 4 is detachably and fixedly connected to the upper part of the tool holder 101 by bolts, and the left side of the lower tool holder 4 is also detachably and fixedly connected to the tool holder 102 by bolts. The lower tool holder 4 is provided with mounting holes 401 distributed vertically. The mounting holes 401 are as follows: Figure 7 As shown, the stepped hole, which is smaller at the top and larger at the bottom, is located directly above the discharge trough 103. The mounting hole 401 is connected to the discharge trough 103. The lower cutter 5 consists of two sets of long lower cutters 501 and one set of short lower cutters 502. The two sets of long lower cutters 501 and one set of short lower cutters 502 are fixedly connected to the inner side wall of the mounting hole 401. A through hole 503 is formed between the two sets of long lower cutters 501 and one set of short lower cutters 502 and the left side wall of the mounting hole 401. The upper cutter 3 cooperates with the through hole 503 to cut the angle steel placed on the lower cutter holder 4.

[0048] In addition, a connecting plate 8 is fixedly connected to the upper left side of the upper tool holder 2, and the buffer assembly 6 and the limiting assembly 7 are both connected between the connecting plate 8 and the receiving cavity 105.

[0049] Specifically, buffer component 6, such as Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, it includes a guide rod 601 and a buffer spring 602. The guide rod 601 is distributed along the vertical direction, with its upper end fixedly connected to the connecting plate and its lower end located inside the receiving cavity 105. The buffer spring 602 is coaxially sleeved on the outside of the guide rod 601, and its upper and lower ends are respectively connected to the lower end face of the connecting plate 8 and the bottom end of the receiving cavity 105.

[0050] The limiting component 7 includes a limiting block 701 and a limiting rod 702, such as Figure 5As shown, a limiting groove 106 is also provided on the inner wall of the receiving cavity 105. The limiting groove 106 is distributed in a C-shape along the circumference of the receiving cavity 105. The limiting block 701 can slide left and right in the limiting groove 106 and is detachably fixed to the inside of the receiving cavity 105 by bolts. The limiting groove 106 can prevent the limiting block 701 from moving up and down, and the limiting block 701 is provided with a sliding hole that runs through it from top to bottom. The length of the limiting rod 702 is distributed in the vertical direction, and the limiting rod 702 is slidably connected to the sliding hole of the limiting block 701. The upper end of the limiting rod 702 is fixedly connected to the connecting plate 8 by double nuts, and the lower end is a protrusion with an outer diameter larger than the diameter of the sliding hole. The protrusion can limit the height of the limiting rod 702 sliding upward.

[0051] Additionally, it should be noted that when the upper tool holder 2 slides to the highest position of the tool post 102, that is, when the lower end of the limiting rod 702 slides upward until it is limited by the protrusion, the height difference between the lower end of the limiting rod 702 and the bottom surface of the receiving cavity 105 is the maximum allowable descent height of the upper tool holder 2. By controlling the distance between the lower end of the limiting rod 702 and the bottom surface of the receiving cavity 105, the downward sliding distance of the upper tool holder 2 can be limited.

[0052] The working principle of this device when cutting angle steel is as follows:

[0053] by Figure 4 For illustrative purposes, the upper cutter holder 2 is connected to the movable end of the piston rod of a longitudinal drive assembly, such as a longitudinal drive cylinder, via a connecting shaft. The piston rod axis of the longitudinal drive cylinder is distributed vertically. The action of the longitudinal drive cylinder can drive the upper cutter holder 2 and the upper cutter 3 to slide up and down along the cutter holder 102. The angle steel to be cut is distributed front and back, with one side parallel and placed on the upper end face of the lower cutter holder 4. The longitudinal drive cylinder drives the upper cutter holder 2 and the upper cutter 3 to move downward to cut the angle steel located on the lower cutter holder 4. During the cutting process, the buffer spring 602 in the buffer assembly 6 can buffer the upper cutter 3 to reduce cutter damage. After the cutting is completed, the upper cutter 2 is driven to move upward under the reset action of the buffer spring 602. The cut-off waste material is positioned and limited by the limiting rod 702. After passing through the through hole 506 and the mounting hole 401 from top to bottom, it falls into the discharge groove 103. Since the bottom surface of the discharge groove 103 is a slope with a high middle and low sides, the waste material will automatically slide along the slope to one or both sides of the mold. The bidirectional discharge design enhances the adaptability of the corner cutting mold under different production line layouts. It should also be noted that when setting the receiving plate or receiving box, it can be set according to the actual installation position of the corner cutting mold. For example, two sets of corner cutting molds with the upper cutter 3 facing each other can cut the two sides of the angle steel respectively. The receiving plate is set on the side away from the upper cutter 3. The discharge groove 103 on the side close to the upper cutter 3 can be blocked by setting a baffle.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A corner-cutting mold for angle steel, comprising: The tool holder (1) consists of a tool holder base (101) and a tool holder platform (102) fixedly connected above the tool holder base (101). The tool holder base (101) is provided with a discharge groove (103), which is distributed through both sides of the tool holder base (101). The upper knife holder (2) is slidably connected to the knife holder (102) in the vertical direction, and the upper knife holder (2) is fixedly connected to the upper cutting knife (3); The lower cutter holder (4) is fixedly connected to the cutter holder (101). The lower cutter holder (4) is provided with a mounting hole (401). The mounting hole (401) is connected to the discharge groove (103) and a lower cutter (5) located directly below the upper cutter (3) is fixedly connected inside. The buffer assembly (6) is connected between the upper tool holder (2) and the tool post (102) and is used to buffer the upper tool holder (2); The limiting component (7) is connected between the upper tool holder (2) and the tool post (102) to limit the maximum stroke of the upper tool holder (2) sliding upward and downward.

2. The angle steel cutting die according to claim 1, characterized in that, The buffer assembly (6) includes a guide rod (601) and a buffer spring (602). The tool holder (102) is provided with a receiving cavity (105) distributed along the height direction. The guide rod (601) is distributed along the vertical direction, with its upper end fixedly connected to the upper tool holder (1) and its lower end located in the receiving cavity (105). The buffer spring (602) is sleeved on the outside of the guide rod (601) and its two ends along the length direction are respectively connected to the upper tool holder (2) and the lower end face of the receiving cavity (105).

3. The angle steel cutting die according to claim 1, characterized in that, The limiting component (7) includes a limiting block (701) and a limiting rod (702). The limiting block (701) is fixedly connected to the tool holder (102). The limiting block (701) is provided with sliding holes that are distributed vertically. The limiting rod (702) is slidably connected to the sliding holes. The upper end of the limiting rod (702) is fixedly connected to the upper tool holder (2), and the lower end is provided with a protrusion with an outer diameter larger than the diameter of the sliding hole.

4. The angle steel cutting die according to claim 1, characterized in that, The lower cutter (5) consists of two sets of long lower cutters (501) and short lower cutters (502) fixedly connected to the inner wall of the mounting hole (401), and the two sets of long lower cutters (501), short lower cutters (502) and the side wall of the mounting hole (401) form a through hole (503) that matches the shape of the upper cutter (3).

5. The angle steel cutting die according to claim 1, characterized in that, The bottom surface of the discharge trough (103) is an inclined surface that is high in the middle and low on both sides.

6. The angle steel cutting die according to claim 1, characterized in that, A connecting shaft (202) is fixedly connected above the upper tool holder (2) for connecting to an external longitudinal drive assembly.

7. The angle steel cutting die according to claim 1, characterized in that, The upper knife holder (2) can be detachably and fixedly connected to the upper cutting knife (3), the lower knife holder (4) to the lower cutting knife (5), and the lower knife holder (4) to the knife holder (1).

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