An automated machining machine tool based on tungsten steel knives

Abstract

An automatic processing machine tool based on tungsten steel cutter production belongs to the field of machine tools, in order to solve when tungsten steel cutter cuts the pickled steel plate with fold, the residual acid in the fold is extruded and flows out, the high temperature generated in the cutting process accelerates the reaction of acid liquid and incision, the high temperature in the cutting process further intensifies the corrosion of acid liquid, which causes the inner wall material of incision to be brittle, and seriously affects the cutting quality. An automatic processing machine tool based on tungsten steel cutter production, comprising a machine tool main body, a tungsten steel cutter main body fixedly connected to one side above the machine tool main body, a first cover plate driven by an electric push rod to move at the same speed as the pickled steel plate, so that the first cover plate and the first baffle are attached to the outer side of the steel plate, and a dust collector sucks away the acid liquid flowing out from the cutting surface fold through the air pipe, so as to reduce the residence time of acid liquid on the cutting surface, reduce the damage to the steel plate and improve the quality after cutting.

Description

Technical Field

[0001] This invention relates to the field of machine tools, and in particular to an automated machining machine tool based on the production of tungsten carbide cutting tools. Background Technology

[0002] In the field of sheet metal processing, pickled steel sheets are widely used in industries such as automobile manufacturing and home appliance production because the surface oxide scale is removed and the subsequent processing performance is excellent. Currently, the industry generally uses automated machining tools based on tungsten carbide blades to cut them, taking advantage of the high hardness, wear resistance, and high cutting precision of tungsten carbide blades to achieve efficient and continuous slitting of pickled steel sheets.

[0003] However, this cutting process has problems: during the production and processing of pickled steel plates, due to the characteristics of the pickling process, some acid is easily left on the surface of the steel plate, and the toughness of the steel plate changes slightly after pickling. During subsequent automated cutting, wrinkles easily form on the surface. These wrinkles become areas for acid accumulation, making it impossible to completely remove residual acid, thus causing a series of quality problems in the cutting process. Specifically, during the production, transportation, and processing of pickled steel plates, due to limitations such as the power of the cleaning equipment and the speed of the steel belt, residual acid on the surface cannot be completely removed. Some acid adheres to the surface of the steel plate and forms localized enrichment areas. At the same time, the toughness of the steel plate changes after pickling, and irregular wrinkles easily form on the surface. These wrinkles become storage spaces for residual acid, leading to long-term adhesion. When a tungsten carbide cutter cuts this type of pickled steel plate with wrinkles, the residual acid in the wrinkles is squeezed out. The high temperature generated during the cutting process accelerates the reaction between the acid and the cut, and the high temperature further intensifies the corrosive effect of the acid, causing the inner wall material at the cut to become brittle, seriously affecting the cutting quality.

[0004] Existing automated tungsten carbide cutting machine tools are not designed to address the above issues, and cannot prevent residual acid from contacting the high-temperature cutting edge. This results in products that are prone to rusting after cutting, have reduced structural strength, and affect subsequent processing and use, making it difficult to meet the high standards of industrial production for the cutting quality of pickled steel plates. Summary of the Invention

[0005] The purpose of this invention is to provide an automated machining tool based on tungsten carbide cutting tools, which solves the problem that when tungsten carbide cutting tools are used to cut pickled steel plates with wrinkles, residual acid at the wrinkles is squeezed out, and the high temperature generated during the cutting process accelerates the reaction between the acid and the cut, and the high temperature during cutting further aggravates the corrosive effect of the acid, causing the inner wall material at the cut to become brittle, which seriously affects the cutting quality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated machining tool based on tungsten carbide cutting tool production, comprising a machine tool body, a tungsten carbide cutting tool body fixedly connected to one side above the machine tool body, a first support plate fixedly connected to the inner side of the machine tool body, and an acid-washed steel plate placed above the first support plate, characterized in that a pushing mechanism is provided on one side of the tungsten carbide cutting tool body, a first cover plate is provided on the side of the pushing mechanism close to the machine tool body, a second cover plate is provided on the inner side of the first cover plate, a fixing structure is provided on the side of the second cover plate away from the tungsten carbide cutting tool body, and two sets of pushing mechanisms are symmetrically arranged about the central axis of the first support plate; The pushing mechanism is used to drive the first cover plate to move at the same speed as the pickling steel plate, so that the first cover plate fits against the outer side of the pickling steel plate, and the vacuum cleaner sucks away the acid liquid flowing out of the folds of the cut surface, reducing the residence time of the acid liquid on the cut surface.

[0007] Preferably, the pushing mechanism includes a frame fixedly connected to the outer side of the first support plate, a second support plate fixedly connected to the upper surface of the frame, a vacuum cleaner fixedly connected to the upper end of the second support plate, a guide groove opened in the inner wall of the second support plate, a guide rod disposed inside the guide groove, a push plate disposed on one side of the second support plate, an electric push rod fixedly connected to the side of the first support plate away from the tungsten carbide blade body, a pull rod fixedly connected to the outside of the guide rod and fixedly connected to the first cover plate, and an air duct connected to the input end of the vacuum cleaner and connected to both sides of the first cover plate; A first baffle is fixedly connected to the side of the first cover plate near the tungsten carbide knife body. An air inlet is provided inside the first baffle plate. An electric push rod is fixedly connected to a push plate, and the push plate is vertically slidably connected to a guide rod. This is used to drive the guide rod to slide along the guide groove, thereby driving the first cover plate to rise and fall and move horizontally.

[0008] Preferably, the guide groove has a downwardly inclined guide section at the end near the tungsten carbide cutter body and an upwardly inclined guide section at the end away from the tungsten carbide cutter body; When the guide rod slides along the guide groove, it drives the first cover plate to move horizontally and simultaneously lift and lower, so that the first cover plate descends to fit against the surface of the pickled steel plate after cutting, and rises back to its original position after acid absorption is completed.

[0009] Preferably, the inner side of the first cover plate is fitted with the outer side of the second cover plate to form a closed air intake channel to prevent acid leakage.

[0010] Preferably, the lower surface of the first cover plate and the lower surface of the first baffle are on the same horizontal plane, so that they can simultaneously adhere to the surface of the pickled steel plate after descent to ensure sealing.

[0011] Preferably, the width of the first cover plate and the width of the second cover plate are both greater than the spacing of the pickled steel strips after cutting, so as to cover the cutting area and ensure that the vacuum cleaner can effectively absorb the acid.

[0012] Preferably, the width of the air inlet is consistent with the spacing of the pickled steel strips after cutting, so as to supplement the gas from the outside when the vacuum cleaner is working and guide the acid-containing gas to flow in a directional manner.

[0013] Preferably, the fixing structure includes a third support plate fixedly connected to the inner side of the frame, a support rod fixedly connected to the third support plate near the tungsten carbide blade body, and a second baffle fixedly connected to the support rod near the tungsten carbide blade body. The second baffle is fixedly connected to the second cover plate and is used to scrape off the burrs that have become brittle due to cooling during the movement of the pickling steel plate.

[0014] Preferably, the lower surface of the second baffle and the lower surface of the second cover plate are on the same horizontal plane to maintain uniform contact with the surface of the pickled steel plate during burr removal.

[0015] Preferably, the width of the second baffle and the width of the second cover plate are both greater than the spacing of the pickled steel strip after cutting, so as to completely cover the cutting area and ensure the effect of scraping off burrs.

[0016] 1. Compared with the prior art, the beneficial effects of the present invention are: by driving the first cover plate to move at the same speed as the pickling steel plate through the electric push rod, the first cover plate and the first baffle are attached to the outer side of the steel plate, and the vacuum cleaner sucks away the acid liquid flowing out of the folds of the cut surface through the air duct, thereby achieving the effects of reducing the residence time of acid liquid on the cut surface, reducing damage to the steel plate, and improving the quality after cutting.

[0017] 2. This invention utilizes two vacuum cleaners symmetrically positioned about the central axis of the first support plate, which adsorb acid from the top and bottom sides respectively. This achieves the effect of preventing acid from spreading in a single direction and contacting more cut surfaces, thus reducing the area damaged by the acid.

[0018] 3. The present invention utilizes the fact that the temperature of the gas moving out from the acid solution on the cutting surface is lower than that of the high-temperature burr that has just been cut, and the gas contains acid solution, which causes the burr to cool down quickly, harden and become brittle. At the same time, the acid solution corrodes the root and sharp corner of the burr, thereby achieving the effect of reducing the toughness of the burr, stress concentration, and making it easier to break and fall off.

[0019] 4. In this invention, when the corroded and cooled burrs move to the position of the second baffle, the second baffle scrapes them off, thereby achieving the effect of removing the burrs and having them carried away by the vacuum cleaner, further reducing the number of burrs on the cutting surface.

[0020] 5. The present invention sets the suction power of the vacuum cleaner to be able to suck up the acid liquid but not blow away the burrs, and the first cover plate and the steel plate remain relatively stationary to prevent the cover plate from moving and pushing over the burrs or the airflow from blowing away the burrs. This achieves the effect of increasing the contact area between the acid gas and the burrs and promoting the burrs to become more brittle and fall off.

[0021] 6. This invention utilizes the uneven shape and stress of the steel plate's folded areas, which makes it easier to generate more burrs during cutting. Furthermore, the folded areas happen to contain more acid, thus achieving the effect of using concentrated acid to corrode the burrs and, in conjunction with subsequent baffles, more effectively cleaning the burrs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the machine tool body from another perspective of the present invention; Figure 3 This is a schematic diagram of the external structure of the push plate of the present invention; Figure 4 This is a schematic diagram of the guide groove structure from the left side of the present invention; Figure 5 This is a schematic diagram of the external structure of the first cover plate of the present invention; Figure 6 This is a schematic diagram of the left-side cross-sectional structure of the first cover plate of the present invention; Figure 7 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle; Figure 8 For the present invention Figure 5 Schematic diagram of the structure at point B.

[0023] In the diagram: 1. Machine tool body; 2. Tungsten carbide cutter body; 3. Pushing mechanism; 4. First cover plate; 5. Second cover plate; 6. First support plate; 7. Fixing structure; 31. Frame; 32. Second support plate; 33. Vacuum cleaner; 34. Guide groove; 35. Guide rod; 36. Push plate; 37. Electric push rod; 38. Pull rod; 39. Air duct; 310. First baffle; 311. Air inlet; 71. Third support plate; 73. Support rod; 74. Second baffle. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-8As shown, this invention is an automated machining tool based on tungsten carbide cutting tool production, comprising a machine tool body 1, a tungsten carbide cutting tool body 2 fixedly connected to one side of the upper part of the machine tool body 1, a first support plate 6 fixedly connected to the inner side of the machine tool body 1, and an acid-washed steel plate 8 placed on the first support plate 6. A pushing mechanism 3 is provided on one side of the tungsten carbide cutting tool body 2, a first cover plate 4 is provided on the side of the pushing mechanism 3 near the machine tool body 1, a second cover plate 5 is provided on the inner side of the first cover plate 4, and a fixing structure 7 is provided on the side of the second cover plate 5 away from the tungsten carbide cutting tool body 2. Two sets of pushing mechanisms 3 are symmetrically arranged about the central axis of the first support plate 6.

[0026] It should be noted that the cutting tool used in this embodiment is a tungsten carbide blade body 2, which contains a rotatable circular tungsten carbide blade.

[0027] When it is necessary to cut the pickled steel plate 8, first place the pickled steel plate 8 above the first support plate 6, start the external pushing mechanism to push the pickled steel plate 8 towards the tungsten steel cutter body 2, and at the same time start the tungsten steel cutter body 2 fixedly connected to one side of the machine tool body 1 to cut the pickled steel plate 8.

[0028] It should be noted that in practical implementation, the electric push rod 37 is only used for the lifting and lowering control of the first cover plate 4 in a single cutting event, and does not need to follow up throughout the entire continuous feeding process. After each cutting segment (e.g., one workpiece or a specified length), the electric push rod 37 performs a complete extension and retraction cycle, and then quickly retracts to the initial position, waiting for the next cutting event. This avoids the control complexity and energy consumption problems caused by the electric push rod 37 following up for a long time during continuous feeding. The cutting process in the above embodiment is as follows: Step 1: The pickled steel plate 8 is fed forward, and the tungsten carbide blade body 2 starts cutting, forming a cutting slit on the surface of the steel plate.

[0029] Step 2: As cutting begins, the electric push rod 37 starts and drives the push plate 36 to extend horizontally towards the tungsten carbide blade body 2.

[0030] Step 3: The push plate 36 drives the guide rod 35 to slide along the guide groove 34 through the vertical sliding connection. The guide rod 35 moves horizontally first, and after reaching point a, it descends along the downward inclined section, so that the first cover plate 4 is in contact with the surface of the steel plate.

[0031] Step 4: The electric push rod 37 retracts at the same speed as the steel plate feeding speed, so that the first cover plate 4 and the steel plate are relatively stationary.

[0032] Step 5: The vacuum cleaner 33 is started, and a directional airflow is formed through the air duct 39, the internal cavity of the first cover plate 4 and the air inlet 311 to suck away the acid liquid flowing out of the cutting seam.

[0033] Step 6: The acidic gas cools and corrodes the burrs, and then the second baffle 74 scrapes off the embrittled burrs.

[0034] Step 7: After acid suction and deburring are completed, the electric push rod 37 continues to retract, the guide rod 35 rises and resets along the upward inclined section, and the first cover plate 4 is separated from the steel plate.

[0035] Step 8: The electric actuator 37 quickly retracts to its initial position, preparing for the next cycle.

[0036] While cutting is in progress, an electric push rod 37 fixedly connected to the side of the first support plate 6 away from the tungsten carbide blade body 2 is activated. The pushing mechanism 3 includes a frame 31 fixedly connected to the outer side of the first support plate 6, a second support plate 32 fixedly connected to the upper surface of the frame 31, a vacuum cleaner 33 fixedly connected to the upper end of the second support plate 32, a guide groove 34 opened in the inner wall of the second support plate 32, a guide rod 35 set inside the guide groove 34, a push plate 36 set on one side of the second support plate 32, an electric push rod 37 fixedly connected to the side of the first support plate 6 away from the tungsten carbide blade body 2, a pull rod 38 fixedly connected to the outside of the guide rod 35 and fixedly connected to the first cover plate 4, and an air duct 39 connected to the input end of the vacuum cleaner 33 and connected to both sides of the first cover plate 4. A first baffle 310 is fixedly connected to the side of the first cover plate 4 near the tungsten carbide blade body 2. An air inlet 311 is opened inside the first baffle 310, and the width of the air inlet 311 is consistent with the spacing of the pickled steel strip after cutting. The electric push rod 37 is fixedly connected to the push plate 36, and the push plate 36 is vertically slidably connected to the guide rod 35.

[0037] The electric push rod 37 drives the push plate 36 to move towards the tungsten carbide blade body 2. The push plate 36 drives the guide rod 35 to slide along the guide groove 34. Point a is set on the outer side of the guide groove 34 near the tungsten carbide blade body 2, and point b is set on the inner side; point c is set on the outer side of the guide groove 34 away from the tungsten carbide blade body 2, and point d is set on the inner side. Point a is closer to the pickling steel plate 8 than point b (i.e., the horizontal height of point a is lower than that of point b), and point c is farther away from the pickling steel plate 8 than point d (i.e., the horizontal height of point c is higher than that of point d).

[0038] The geometric trajectory of guide groove 34 is further detailed as follows: Guide groove 34 is a continuous curved groove, and its trajectory is composed of the following four segments connected smoothly in sequence: The first segment (horizontal segment): extends horizontally from the initial position of the guide rod 35 (the farthest end away from the tungsten steel knife body 2) to the projected position directly above point a. This segment of the guide rod 35 only moves horizontally and does not move up or down.

[0039] The second segment (descending inclined segment): Starting from the projection position directly above point a, it extends along a smooth downward inclined straight line to point b. The angle between this segment and the horizontal segment is 30° to 60°, and the corners are rounded (radius of curvature R ≥ 5mm) to ensure that the guide rod 35 passes smoothly. The guide rod 35 moves downward in this segment, causing the first cover plate 4 to descend to fit against the surface of the pickled steel plate 8.

[0040] The third section (horizontal working section): extending horizontally from point b to the projection position directly below point d. In this section, the guide rod 35 only moves horizontally, and the first cover plate 4 maintains a constant height in contact with the steel plate.

[0041] The fourth segment (ascending inclined segment): Starting from the projection position directly below point d, it extends along a smooth, upward inclined straight line to point c. The angle between this segment and the horizontal segment is 30° to 60°, and the corners are also rounded. The guide rod 35 moves upward in this segment, causing the first cover plate 4 to rise and reset, separating it from the steel plate surface.

[0042] Points a, b, c, and d mentioned above are not the physical endpoints of the guide groove 34, but rather geometric feature points of each trajectory segment. Point a is the starting point (outermost lowest point) of the descending incline segment, point b is the ending point (innermost lowest point) of the descending incline segment, point d is the starting point (innermost highest point) of the ascending incline segment, and point c is the ending point (outermost highest point) of the ascending incline segment. The actual movement sequence of the guide rod 35 is: initial position to horizontal segment to point a to descending incline segment to point b to horizontal working segment to point d to ascending incline segment to point c to return to the initial position.

[0043] The guide groove 34 is a continuous curved groove. One end near the tungsten carbide cutter body 2 has a downward-sloping guide section, and the other end away from the tungsten carbide cutter body 2 has an upward-sloping guide section. The middle section is a horizontal straight section. The corners are rounded with a radius of curvature of not less than 5mm to ensure that the guide rod 35 passes smoothly without jamming.

[0044] The initial length of the electric actuator 37 is L0, and its extension direction is horizontal towards the tungsten carbide blade body 2, with a maximum extension of S. When the electric actuator 37 pushes the push plate 36 to move horizontally forward, the push plate 36 is vertically slidably connected to the guide rod 35 through its vertical oblong hole or groove. Therefore, the push plate 36 only applies a horizontal thrust to the guide rod 35, and does not apply a vertical force. Under the action of the horizontal thrust, the guide rod 35 slides along the guide groove 34, and its rise and fall are completely determined by the curved trajectory constraint of the guide groove 34.

[0045] To ensure that the guide rod 35 always conforms to the trajectory of the guide groove 34, the guide rod 35 and the guide groove 34 are fitted with a clearance (clearance ≤ 0.1mm). During horizontal movement, the guide rod 35 is subjected to a continuous horizontal thrust from the push plate 36. This thrust is decomposed into a vertical component in the inclined section of the guide groove, causing the guide rod 35 to naturally rise or fall along the groove wall. No additional pre-tightening device is required.

[0046] Moving inward means that the guide rod 35 moves from away from the horizontal guide groove 34 of the pickling steel plate 8 to close to the horizontal guide groove 34 of the pickling steel plate 8.

[0047] When the push plate 36 moves the guide rod 35 to point a (i.e., the guide rod 35 reaches the starting point of the downward inclined section along the horizontal section), the electric push rod 37 immediately moves in the opposite direction (i.e., retracts horizontally), causing the push plate 36 to move back. Because the guide rod 35 is constrained by the wall of the downward inclined section of the guide groove 34 during its reverse movement, the horizontal thrust is decomposed into a downward vertical component, causing the guide rod 35 to move from point a to point b along the downward inclined section of the guide groove 34, completing the descent.

[0048] When the guide rod 35 moves to point d and continues to move towards point c, the upward tilting section of the guide groove 34 causes the guide rod 35 to gradually rise and complete the reset.

[0049] A pull rod 38 is fixedly connected to the outer side of the guide rod 35, and the pull rod 38 is fixedly connected to the first cover plate 4. Therefore, when the guide rod 35 moves inward, it drives the first cover plate 4 to move downward toward the pickling steel plate 8 through the pull rod 38. A first baffle 310 is fixedly connected to the side of the first cover plate 4 near the tungsten carbide knife body 2, and the lower surface of the first cover plate 4 and the lower surface of the first baffle 310 are on the same horizontal plane. When the first cover plate 4 is lowered into position, the lower surfaces of the first cover plate 4 and the first baffle 310 simultaneously adhere to the outer side of the pickling steel plate 8. A second cover plate 5 is provided on the inner side of the first cover plate 4, and the inner side of the first cover plate 4 adheres to the outer side of the second cover plate 5. The speed at which the electric push rod 37 moves back is consistent with the speed at which the pickled steel plate 8 moves toward the tungsten carbide blade body 2. This is achieved in the following way: the machine tool main controller simultaneously sends synchronous speed commands to the servo drivers of the feeding drive motor and the electric push rod 37. The feeding speed V1 is set by the host computer, and the retraction speed V2 of the electric push rod 37 is set to be equal to V1. The encoder provides real-time feedback correction to ensure that the first cover plate 4 and the pickled steel plate 8 remain relatively stationary.

[0050] At this time, the vacuum cleaner 33, which is fixedly connected to the upper end of the second support plate 32, is started. The input end of the vacuum cleaner 33 is connected to the air duct 39, which is connected to both sides of the first cover plate 4. After the vacuum cleaner 33 is started, it sucks away the acid liquid that just flowed onto the cutting surface due to cutting the wrinkles of the pickled steel plate 8.

[0051] The inner sides of the first cover plate 4 and the second cover plate 5 form a closed suction chamber, and the air inlet 311 on the first baffle 310 is located directly above the cutting slit. After the vacuum cleaner 33 is started, a negative pressure is formed in the chamber, and external air enters through the air inlet 311. The airflow direction is from the air inlet 311 towards the cutting slit, then flows horizontally to both sides along the cutting slit, and then enters the vacuum cleaner 33 through the air ducts 39 on both sides of the first cover plate 4. This airflow path directly passes through the acid accumulation area in the cutting slit, carrying acid droplets.

[0052] Technical explanation regarding the vacuum cleaner 33's removal of liquid acid: The vacuum cleaner 33 does not suck up pure liquid acid, but rather acid mist (tiny droplets suspended in the air) formed by the partial vaporization of acid during cutting at high temperatures, as well as fine acid droplets carried by high-speed airflow. The high temperatures generated during cutting (up to several hundred degrees Celsius) cause the liquid acid on the steel plate surface to evaporate or atomize rapidly, forming an acid mist aerosol. The negative pressure airflow (wind speed of approximately 10–30 m / s) generated by the vacuum cleaner 33 is sufficient to draw this acid mist aerosol into the air duct 39. For any remaining larger droplets, the high-speed airflow tears them into smaller droplets and carries them away. To prevent acid from corroding the interior of the vacuum cleaner 33, the air intake pipe and internal components in contact with the airflow are made of acid-resistant materials (such as PTFE coating or 316L stainless steel). Furthermore, an acid collector is installed downstream of the vacuum cleaner 33 to separate and recover the acid, preventing it from entering the motor section of the vacuum cleaner 33.

[0053] Furthermore, the suction power of the vacuum cleaner 33 is precisely adjusted through frequency conversion control, and the inlet negative pressure is set to 2-5 kPa. Within this negative pressure range, acid mist and fine acid droplets can be effectively sucked in, while burr particles with a diameter greater than 0.1 mm cannot be sucked in due to their greater inertia, thus achieving selective suction.

[0054] The primary purpose of this device is to absorb the acid that flows out from the cut into the folds; it is not necessary to absorb the acid that has not yet flowed out from within. When the flowing acid comes into contact with the freshly cut, unoxidized, and high-temperature cut, a chemical reaction occurs, causing corrosion. The longer the acid remains in contact with the cut, the stronger the corrosion. Therefore, timely removal of the flowing acid is crucial to reducing corrosion. The inlet negative pressure of the vacuum cleaner 33 is set sufficiently to draw in acid droplets exposed on the steel plate surface.

[0055] The suction power of vacuum cleaner 33 is set to be able to only suck up acid liquid but not to suck up or blow away the burrs produced by cutting. This is not a deliberate setting of suction power, because burrs are ultimately part of the steel plate and cannot be sucked up directly by suction power. They can only be sucked up by subsequent corrosion, cooling catalysis and mechanical collision.

[0056] When the gas inside the first cover plate 4 and the second cover plate 5 is reduced by being drawn away, the gas on the outside will enter from the air inlet 311 to replenish it, forming a directional airflow.

[0057] Through the above process, the residence time of the acid solution on the cut surface of the pickled steel plate 8 is reduced, thereby reducing the damage of the acid solution to the pickled steel plate 8 and improving the quality of the pickled steel plate 8 after cutting.

[0058] When the folds of the pickled steel plate 8 are cut, the tungsten carbide blade body 2 causes the acid to splash upwards or downwards, resulting in acid on both the upper and lower sides of the cut surface. Two sets of pushing mechanisms 3 are symmetrically arranged about the central axis of the first support plate 6; therefore, two vacuum cleaners 33 are also symmetrically arranged, located on the upper and lower sides of the pickled steel plate 8 respectively. When both vacuum cleaners 33 are activated simultaneously, the acid on the cut surface of the pickled steel plate 8 is drawn upwards and downwards respectively, preventing the acid above from being pushed downwards and the acid below from being pushed upwards, thus avoiding contact with more of the cut surface. This reduces the area damaged by the acid and further improves the quality of the pickled steel plate 8 after cutting.

[0059] When the tungsten carbide blade body 2 cuts the pickled steel plate 8, high-temperature burrs are generated at the cut surface. Since the widths of the first cover plate 4 and the second cover plate 5 are both greater than the spacing of the pickled steel strips after cutting, and the air duct 39 is connected to both sides of the first cover plate 4, the gas drawn from the acid solution at the cut surface of the pickled steel plate 8 moves horizontally to both sides along the upper surface of the pickled steel plate 8. The temperature of this gas is lower than the high-temperature burrs immediately after cutting, and the gas contains acid. The high-temperature burrs quickly harden and become brittle after being rapidly cooled by the acid-containing cold gas, resulting in decreased toughness; the acid also corrodes the root and sharp corners of the burrs, making them thinner, more brittle, and less strong. Under subsequent airflow, vibration, or slight external force, the burrs are more likely to break off from the root, fracturing and falling off.

[0060] Regarding the time and effect of acid corrosion on burrs: Acid corrosion of burrs does not require a long residence time on the burrs. Due to the extremely high surface area and stress concentration of the high-temperature burrs generated during cutting, and the presence of microcracks and crystal defects at the burr root, the rate of acid corrosion on them is much faster than that on the smooth cut surface. Under high-temperature conditions (burr temperature approximately 300–500°C), a rapid chemical reaction occurs on the burr surface the instantaneously (on the millisecond scale) upon contact with the acidic gas, generating brittle oxides or salt products, reducing the burr's hardness and toughness. Simultaneously, the acid absorbs heat during evaporation, causing a sudden drop in burr surface temperature (thermal shock), further exacerbating burr embrittlement. Therefore, even a very short residence time of the acid on the burr (several milliseconds to tens of milliseconds) is sufficient to produce a measurable embrittlement effect, which can be removed by mechanical scraping with the second baffle 74.

[0061] The core of this solution lies in utilizing the dual effects of the acid: on the one hand, the acid briefly lingers on the burrs during the suction path, making them brittle; on the other hand, the acid is quickly removed by the vacuum cleaner 33, preventing it from remaining on the cut surface for an extended period. Therefore, reducing the acid's residence time and utilizing the acid to corrode the burrs are not contradictory, but rather different stages of the same process. The acid preferentially acts on the burrs, which are more easily corroded than the cut surface, and is then promptly removed, thus utilizing its beneficial effects while minimizing its harmful effects.

[0062] The core problem this device aims to solve is reducing the residence time of acid at the cut, rather than completely preventing acid from passing through the cut. When the tungsten carbide blade 2 cuts the pickled steel plate 8, the acid in the folds will inevitably flow to the cut under the cutting pressure. At this time, the vacuum cleaner 33 is activated to remove the acid, but the acid must pass through the high-temperature burr area at the cut as it is sucked into the duct 39 from the cut. As a three-dimensional structure, the burrs will physically block and adsorb the acid, causing some of the acid to temporarily remain on the burr surface.

[0063] It is this portion of acid intercepted by the burrs that cools and corrodes them: the acidic gas is at a lower temperature than the burrs, causing them to become brittle quickly; the acid also corrodes the root and sharp corners of the burrs. Most of the acid is then sucked away by the vacuum cleaner 33 after passing through the burrs and does not remain on the cut surface for an extended period.

[0064] Therefore, "removing acid to reduce cut corrosion" and "using acid to corrode burrs" are not contradictory. The former is the primary function of a vacuum cleaner, while the latter is a beneficial side effect produced when acid naturally passes through burrs in the suction path. The acid is not intentionally retained at the cut, but is promptly removed after passing through the burrs, thus minimizing the risk of corrosion to the cut itself while utilizing its ability to corrode the burrs.

[0065] In this way, while reducing corrosion on the cut surface, the acid also promotes the embrittlement and shedding of burrs through its cooling and corrosive effects, further reducing the number of burrs after cutting the pickled steel plate and improving the cutting quality.

[0066] The suction power of the vacuum cleaner 33 is set to only remove acid liquid and not burrs. Furthermore, the reciprocating speed of the electric push rod 37 is the same as the movement speed of the pickled steel plate 8, keeping the first cover plate 4 and the pickled steel plate 8 relatively stationary. This prevents the first cover plate 4 from pushing over burrs or the airflow from blowing them away. This results in a larger contact area between the acidic gas and the burrs, allowing the burrs to be cooled and corroded more thoroughly, making them easier to detach.

[0067] The fixed structure 7 includes a third support plate 71 fixedly connected to the inner side of the frame 31. A support rod 73 is fixedly connected to the third support plate 71 near the tungsten carbide blade body 2, and a second baffle 74 is fixedly connected to the support rod 73 near the tungsten carbide blade body 2. The second baffle 74 is fixedly connected to the second cover plate 5. The lower surface of the second baffle 74 and the lower surface of the second cover plate 5 are on the same horizontal plane. The width of the second baffle 74 and the width of the second cover plate 5 are both greater than the spacing of the pickled steel strips after cutting.

[0068] When the corroded and cooled burrs move with the pickled steel plate 8 to the position of the second baffle 74, the second baffle 74 scrapes them off. The scraped burrs are then sucked away by the vacuum cleaner 33 through the air duct 39, thereby further reducing the number of burrs on the cut surface.

[0069] It needs to be clarified that the scraped burr particles are relatively large (diameter > 0.1mm) and will not be directly sucked away by the airflow. Instead, they are scraped off by the second baffle 74 and fall onto the surface of the pickled steel plate 8. Subsequently, they are collected by the vacuum cleaner 33 through a short pulse of increased suction or by an external cleaning device in subsequent processes. The statement in the instruction manual that "the scraped burrs are subsequently sucked away by the vacuum cleaner 33" refers to the cleaning action in subsequent processes, not that it is performed simultaneously with the acid suction with the same parameters.

[0070] The folded areas of the pickled steel plate 8 are inherently uneven in shape and have uneven internal stress, making them more prone to producing more burrs when cut. Furthermore, the folded areas tend to accumulate more acid. This solution utilizes the acid concentrated in the folds to corrode the burrs produced there, and combined with the scraping action of the subsequent second baffle 74, achieves more effective burr removal.

[0071] After the acid absorption and deburring processes are completed, the electric push rod 37 continues to move horizontally backward (away from the tungsten carbide blade body 2). The push plate 36 drives the guide rod 35 to move horizontally away from the tungsten carbide blade body 2. The guide groove 34 has an upwardly inclined guide section at the end away from the tungsten carbide blade body 2. Under the action of horizontal thrust, the guide rod 35 enters this inclined section. Due to the constraint of the groove wall of the guide groove 34, the guide rod 35 is forced to move upward along the inclined surface, thereby driving the first cover plate 4 to rise and reset. The driving force for this upward movement comes entirely from the vertical component of the horizontal thrust of the electric push rod 37 generated by the decomposition of the inclined surface of the guide groove, without the need for additional drive. When the guide rod 35 moves to position c, the first cover plate 4 has completely detached from the surface of the pickled steel plate 8. Subsequently, the electric push rod 37 moves at a faster speed away from the tungsten carbide blade body 2, preparing for the next round of processing, thereby achieving continuous operation.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated machining tool based on tungsten carbide cutting tool production, comprising a machine tool body (1), a tungsten carbide cutting tool body (2) fixedly connected to one side above the machine tool body (1), a first support plate (6) fixedly connected to the inner side of the machine tool body (1), and a pickled steel plate (8) placed above the first support plate (6), characterized in that, A pushing mechanism (3) is provided on one side of the tungsten steel cutter body (2). A first cover plate (4) is provided on the side of the pushing mechanism (3) close to the machine tool body (1). A second cover plate (5) is provided on the inner side of the first cover plate (4). A fixing structure (7) is provided on the side of the second cover plate (5) away from the tungsten steel cutter body (2). Two sets of pushing mechanisms (3) are symmetrically arranged about the central axis of the first support plate (6). The pushing mechanism (3) is used to drive the first cover plate (4) to move at the same speed as the pickling steel plate (8), so that the first cover plate (4) fits against the outer side of the pickling steel plate (8), and the acid liquid flowing out of the folds of the cut surface is sucked away by the vacuum cleaner, reducing the residence time of the acid liquid on the cut surface.

2. The automated machining tool based on tungsten carbide tool production according to claim 1, characterized in that, The pushing mechanism (3) includes a frame (31) fixedly connected to the outer side of the first support plate (6), a second support plate (32) fixedly connected to the upper surface of the frame (31), a vacuum cleaner (33) fixedly connected to the upper end of the second support plate (32), a guide groove (34) opened on the inner wall of the second support plate (32), a guide rod (35) set inside the guide groove (34), a push plate (36) set on one side of the second support plate (32), an electric push rod (37) fixedly connected to the side of the first support plate (6) away from the tungsten steel knife body (2), a pull rod (38) fixedly connected to the outside of the guide rod (35) and fixedly connected to the first cover plate (4), and an air duct (39) connected to the input end of the vacuum cleaner (33) and connected to both sides of the first cover plate (4). The first cover plate (4) is fixedly connected to a first baffle (310) on the side near the tungsten steel knife body (2). An air inlet hole (311) is opened inside the first baffle (310). The electric push rod (37) is fixedly connected to the push plate (36). The push plate (36) is vertically slidably connected to the guide rod (35) to drive the guide rod (35) to slide along the guide groove (34), thereby driving the first cover plate (4) to rise and fall and move horizontally.

3. The automated machining tool based on tungsten carbide tool production according to claim 2, characterized in that, The guide groove (34) has a downwardly inclined guide section at one end near the tungsten steel knife body (2) and an upwardly inclined guide section at the other end away from the tungsten steel knife body (2). When the guide rod (35) slides along the guide groove (34), it drives the first cover plate (4) to move horizontally and lift up at the same time, so that the first cover plate (4) descends to fit against the surface of the pickled steel plate (8) after the cutting is completed, and rises back to its original position after the acid absorption is completed.

4. An automated machining tool based on tungsten carbide tool production according to claim 2, characterized in that, The inner side of the first cover plate (4) is attached to the outer side of the second cover plate (5) to form a closed air intake channel to prevent acid leakage.

5. An automated machining tool based on tungsten carbide cutting tool production according to claim 2, characterized in that, The lower surface of the first cover plate (4) and the lower surface of the first baffle (310) are on the same horizontal plane, so that they can simultaneously adhere to the surface of the pickled steel plate (8) after descent to ensure sealing.

6. An automated machining tool based on tungsten carbide cutting tool production according to claim 2, characterized in that, The width of the first cover plate (4) and the width of the second cover plate (5) are both greater than the spacing of the pickled steel strip after cutting, and are used to cover the cutting area to ensure that the vacuum cleaner can effectively absorb the acid.

7. An automated machining tool based on tungsten carbide cutting tool production according to claim 2, characterized in that, The width of the air inlet (311) is consistent with the spacing of the pickled steel strip after cutting, and is used to supplement gas from the outside when the vacuum cleaner is working, and guide the acid-containing gas to flow in a directional manner.

8. An automated machining tool based on tungsten carbide cutting tool production according to claim 1, characterized in that, The fixed structure (7) includes a third support plate (71) fixedly connected to the inner side of the frame (31), a support rod (73) fixedly connected to the side of the third support plate (71) near the tungsten steel knife body (2), and a second baffle (74) fixedly connected to the side of the support rod (73) near the tungsten steel knife body (2). The second baffle (74) is fixedly connected to the second cover plate (5) and is used to scrape off the burrs that have been cooled and become brittle during the movement of the pickled steel plate (8).

9. An automated machining tool based on tungsten carbide tool production according to claim 8, characterized in that, The lower surface of the second baffle (74) is on the same horizontal plane as the lower surface of the second cover plate (5) to maintain uniform contact with the surface of the pickled steel plate (8) when scraping burrs.

10. An automated machining tool based on tungsten carbide cutting tool production according to claim 8, characterized in that, The width of the second baffle (74) and the width of the second cover plate (5) are both greater than the spacing of the pickled steel strip after cutting, so as to completely cover the cutting area and ensure the effect of scraping off burrs.

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