Precision casting sprue cutting machine and cutting method

Abstract

The invention discloses a precise casting pouring gate cutting machine and a cutting method, and relates to the technical field of high-quality copper casting and titanium casting manufacturing. The precise casting pouring gate cutting machine comprises a frame, a workbench is arranged in the frame, a first rotating shaft is fixedly connected to the inner wall of the frame, and a hinge rod is rotationally connected to the outer portion of the first rotating shaft; a pedal is fixedly connected to one end of the hinge rod, a hinge piece is hinged to the other end of the hinge rod, a push rod is hinged to the inner wall of the hinge piece, a hinge plate is hinged to the top end of the push rod, and a second rotating shaft is rotationally connected to the inner wall of the hinge plate. According to the cutting device for the casting part, the casting part sprue is cut through high-speed rotation of the blade, meanwhile, a worker adjusts the casting part in real time, flexible cutting work of the casting part can be completed on the workbench, convenience of cutting operation is improved through treading type pressing cutting, and the cutting efficiency and quality of the high-quality copper casting are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing high-quality copper castings and titanium castings, and in particular to a precision casting gate cutting machine and a cutting method. Background Art

[0002] The high-quality copper casting and titanium casting manufacturing industry mainly uses traditional manual cutting machines to separate the pouring cup and the casting. When cutting, the worker needs to hold the casting and press down the grinding wheel to cut the casting. The worker needs to hold the casting tightly, and the hands and face are very close to the high-speed rotating grinding wheel, which is very dangerous. At the same time, the sparks and dust generated by cutting are flying, the noise is very loud, and the working environment is harsh. In view of the disadvantages of this cutting method, a highly automated and stable cutting machine is urgently needed.

[0003] A precision casting gate cutting machine described in a patent application with announcement number CN103537657B includes a frame, on which a cutting mechanism and a clamp are provided. The clamp includes a first clamping plate and a second clamping plate that can be clamped together. The first clamping plate and the second clamping plate are provided with grooves that are adapted to the gate cup, and a plurality of positioning protrusions are provided on the surface of the grooves.

[0004] At present, when workers operate the cutting machine to cut the pouring gate of high-quality copper castings and titanium castings, the waste chips and sparks generated by the cutting of the castings will splash around and contaminate the faces of the workers, resulting in the problem that manual operation is not conducive to the cutting of the pouring gate of the castings. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a precision casting gate cutting machine and a cutting method, which achieve the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a precision casting gate cutting machine, comprising a frame, a workbench is arranged inside the frame, a first rotating shaft is fixedly connected to the inner wall of the frame, a hinge rod is rotatably connected to the outside of the first rotating shaft, a pedal is fixedly connected to one end of the hinge rod, a hinge is hinged to the other end of the hinge rod, a push rod is hinged to the inner wall of the hinge, a hinge plate is hinged to the top of the push rod, a second rotating shaft is rotatably connected to the inner wall of the hinge plate, two ends of the second rotating shaft are fixedly connected to the inner wall of the frame, a cutter is fixedly connected to the top of the hinge plate, a blade is arranged inside the cutter, and a cutting mechanism is arranged on the outer wall of the workbench; The cutting mechanism comprises: A fixed plate, the fixed plate is a square plate-shaped structure, one end of the fixed plate is fixedly connected to the outer wall of the cutter, the outer wall of the fixed plate is fixedly connected to a first rotating rod, the outer wall of the first rotating rod is rotatably connected to a rotating sleeve, the outer wall of the rotating sleeve is fixedly connected to a movable plate, and the fixed plate is used to connect the cutter and the first rotating rod; The opening and closing plate is a square frame structure, one side of the opening and closing plate is fixedly connected with a connecting piece, the connecting piece is hinged to one end of the movable plate, and the opening and closing plate is used for protection.

[0007] Preferably, a groove is provided on the inner wall of the opening and closing plate, and a glass plate is fixedly connected to the inner wall of the groove, and the glass plate is used to observe the cutting position.

[0008] Preferably, a long sleeve is fixedly connected to the top of the opening and closing plate, a U-shaped rod is rotatably connected to the inner wall of the long sleeve, a connecting block is fixedly connected to the bottom of the U-shaped rod, and one side of the connecting block is fixedly connected to the outer wall of the workbench.

[0009] Preferably, a baffle is fixedly connected to the top of the long sleeve, and the baffle is an arc-shaped plate structure, and the baffle is used to protect sparks and debris above.

[0010] Preferably, the outer wall of the opening and closing plate is provided with a protective mechanism, and the protective mechanism includes a second rotating rod, one end of the second rotating rod is fixedly connected to the outer wall of the opening and closing plate, the outer wall of the second rotating rod is rotatably connected to the opening and closing rod, one end of the opening and closing rod is rotatably connected to the third rotating rod, a sliding groove is provided on the side of the U-shaped rod, one end of the third rotating rod is slidably connected to the inner wall of the sliding groove, and the outer wall of the opening and closing rod is provided with elastic cloth.

[0011] Preferably, the outer wall of the opening and closing rod is rotatably connected with a slide groove, the outer wall of the slide groove is fixedly connected to the outer wall of the elastic cloth, the outer wall of the elastic cloth is fixedly connected with a fixing column, one end of the fixing column is fixedly connected to the outer wall of the opening and closing plate, and the elastic cloth is used to protect against sparks.

[0012] Preferably, the outer wall of the slide groove is fixedly connected to a first telescopic rod, the outer wall of the first telescopic rod is fixedly connected to a second telescopic rod, one end of the second telescopic rod is fixedly connected to a long strip, one side of the long strip is fixedly connected to one side of the opening and closing plate, the second telescopic rod is used to limit the first telescopic rod in the telescopic direction, the surface of the elastic cloth is a bright reflective material, and the elastic cloth is elastic.

[0013] Preferably, the protective mechanism also includes a vertical slide bar, which is fixedly connected to the outer wall of the opening and closing plate, and the outer wall of the vertical slide bar is fixedly connected with a support block and a top plate, a long spring is fixedly connected between the support block and the top plate, and lifting plates are fixedly connected on both sides of the lifting block, and a scale groove is provided on the middle vertical bar on the front of the opening and closing plate.

[0014] A precision casting gate cutting method comprises the following steps: S1: When in use, when you need to cut the gate of high-quality copper and titanium castings, place it on the workbench in the frame; S2: Then the cutter is started to control the blade to rotate, thereby completing the cutting of the casting gate; S3: Place the high-quality copper casting sprue to be cut on the workbench and align it with the blade; S4: The worker sits in front of the frame and steps on the pedal, so that the cutter and the blade are lowered as a whole, and the high-speed rotation of the blade is used to complete the cutting of the casting gate.

[0015] The present invention provides a precision casting gate cutting machine and cutting method, which have the following beneficial effects: 1. The present invention sets a cutting mechanism so that the cutter and the blade are lowered as a whole, and the high-speed rotation of the blade is used to complete the cutting of the casting gate. At the same time, the staff makes real-time adjustments to the casting, so that the casting can be flexibly cut on the workbench. The convenience of the cutting operation is improved through foot-operated pressing cutting, so that the cutting efficiency and quality of high-quality copper castings can be guaranteed.

[0016] 2. The present invention sets a cutting mechanism so that when cutting high-quality copper castings, the opening and closing plates will automatically tilt and approach the face of the staff, so that the staff's face will not be injured by the splashing of debris and sparks during high-speed cutting as much as possible, and when not cutting, the opening and closing plates will be far away from the face, so as not to hinder the staff from placing and clamping the high-quality copper castings.

[0017] 3. The present invention sets a cutting mechanism and can also limit the position of the worker's head. The deeper the blade descends and the bigger the spark, the farther the opening and closing plate blocks the worker's face from the cutting point, thereby preventing the worker from ignoring the dangers of waste chips and sparks caused by deep cutting due to bad operating habits.

[0018] 4. The present invention provides a cutting mechanism. When cutting, the upper baffle plate is brought closer to the cutting position to reduce the splashing of sparks and debris at the upper position caused by cutting, thereby preventing the sparks and debris from splashing from above and affecting the state of the staff operating the cutting at this time, thereby ensuring the stable cutting and processing of high-quality copper castings. When not cutting, the baffle plate remains in a vertical state to reduce the coverage of the cutting position, which is convenient for observing and operating the casting gate.

[0019] 5. The present invention provides a protective mechanism, and the opened slide groove and the fixed column form an inclined surface. Therefore, after the elastic cloth between them is pulled apart, an inclined surface will be formed and aligned with the cutting processing position, completing the automatic stretching and expansion of the elastic cloth during cutting, so as to ensure that the debris and sparks at the cutting position are fully blocked, and prevent a large amount of debris and sparks from splashing and overflowing during cutting, causing safety hazards to external staff and affecting their operation of cutting the high-quality copper casting gate. When the cutting stops, the elastic cloth will also retract, and the two opening and closing rods will rotate to the two sides of the opening and closing plate, reducing the interference of the staff when operating on the workbench.

[0020] 6. The present invention sets a protective mechanism. Since the two elastic cloths on both sides of the opening and closing plate are inclined surfaces, when cutting, when the two elastic cloths are opened, the cutting sparks and firelight generated at the cutting position will shine on the two elastic cloths, and the elastic cloths are aligned with the cutting position at an angle to complete the automatic reflection of the firelight, so that the elastic cloths can reflect light, thereby ensuring the stable highlight of the cutting point during cutting and the uniformity of the illumination, so that the staff can cover and protect the sparks and debris while also using the brightness of the firelight to automatically illuminate the internal cutting position, ensuring the stable and accurate operation of the staff in cutting the pouring gate of high-quality copper castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic structural diagram of the cutting mechanism of the present invention; Figure 4 For the present invention Figure 2 A magnified image of point A; Figure 5 For the present invention Figure 3 A magnified view of point B; Figure 6 The motion state of the cutting mechanism of the present invention is Figure 1 ; Figure 7 The motion state of the cutting mechanism of the present invention is Figure 2 ; Figure 8 It is a structural schematic diagram of the protection mechanism of the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of point C; Fig.10 For the present invention Figure 8 The enlarged view of point D; Fig.11 The motion state of the protection mechanism of the present invention is Figure 1 ; Fig.12 The motion state of the protection mechanism of the present invention is Figure 2 ; Fig.13 The motion state of the protection mechanism of the present invention is Figure 3 ; Fig.14 The motion state of the protection mechanism of the present invention is Figure 4 ; Fig.15 For the present invention Fig.14 Enlarged view of point E.

[0022] In the figure: 1 frame, 2 cutting mechanism, 201 fixed plate, 202 first rotating rod, 203 rotating sleeve, 204 movable plate, 205 connecting piece, 206 opening and closing plate, 207 glass plate, 208 long sleeve, 209 baffle, 210 U-shaped rod, 211 connecting block, 3 protection mechanism, 301 second rotating rod, 302 opening and closing rod, 303 third rotating rod, 304 slide, 305 first telescopic rod, 306 second telescopic rod, 307 long strip plate, 308 elastic cloth, 309 fixed column, 310 vertical slide, 311 lifting block, 312 supporting block, 313 long spring, 314 top plate, 315 lifting plate, 4 pedals, 5 hinged rod, 6 hinged piece, 7 push rod, 8 hinged plate, 9 cutter, 10 blade, 11 workbench, 12 first rotating shaft, 13 second rotating shaft. DETAILED DESCRIPTION

[0023] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a precision casting gate cutting machine, comprising a frame 1, a workbench 11 is arranged inside the frame 1, a first rotating shaft 12 is fixedly connected to the inner wall of the frame 1, a hinge rod 5 is rotatably connected to the outside of the first rotating shaft 12, a pedal 4 is fixedly connected to one end of the hinge rod 5, a hinge 6 is hinged to the other end of the hinge rod 5, a push rod 7 is hinged to the inner wall of the hinge 6, a hinge plate 8 is hinged to the top of the push rod 7, a second rotating shaft 13 is rotatably connected to the inner wall of the hinge plate 8, both ends of the second rotating shaft 13 are fixedly connected to the inner wall of the frame 1, a cutter 9 is fixedly connected to the top of the hinge plate 8, a blade 10 is arranged inside the cutter 9, and a cutting mechanism 2 is arranged on the outer wall of the workbench 11; The cutting mechanism 2 comprises: The fixed plate 201 is a square plate structure, one end of the fixed plate 201 is fixedly connected to the outer wall of the cutter 9, the outer wall of the fixed plate 201 is fixedly connected to the first rotating rod 202, the outer wall of the first rotating rod 202 is rotatably connected to the rotating sleeve 203, the outer wall of the rotating sleeve 203 is fixedly connected to the movable plate 204, and the fixed plate 201 is used to connect the cutter 9 and the first rotating rod 202; The opening and closing plate 206 is a square frame structure. A connecting piece 205 is fixedly connected to one side of the opening and closing plate 206. The connecting piece 205 is hinged to one end of the movable plate 204. The opening and closing plate 206 is used for protection. When in use, when it is necessary to cut the pouring gate of high-quality copper or titanium castings, it is placed on the workbench 11 in the frame 1, and then the cutter 9 is started to control the blade 10 to rotate, so as to complete the cutting work of the pouring gate of the casting; When cutting, the worker sits in front of the frame 1 and steps on the pedal 4, so that after the pedal 4 is stepped on, it rotates on the first rotating shaft 12, and lifts the hinge 6 at the other end of the hinge rod 5 through the lever, so that the hinge 6 is lifted up and pushes the push rod 7 on the inner wall through the hinge. The push rod 7 is pushed up and pushes the upper hinge plate 8 through the hinge. The hinge plate 8 rotates on the outer wall of the second rotating shaft 13, and the entire cutter 9 and the blade 10 above the hinge plate 8 rotate synchronously. When the hinge plate 8 is pushed up by the push rod 7, the position of the other end of the hinge plate 8 carrying the blade 10 is lowered by the lever, so that the cutter 9 and the blade 10 are completely lowered, and the high-speed rotation of the blade 10 is used to complete the cutting of the casting gate. At the same time, the worker adjusts the casting in real time, so that the casting can complete flexible cutting work on the workbench 11, and the convenience of cutting operation is improved through foot-operated pressing cutting, so that the cutting efficiency and quality of high-quality copper castings can be guaranteed; Example 2: Please refer to Figure 1-7 Based on the first embodiment, the present invention provides a technical solution: a groove is provided on the inner wall of the opening and closing plate 206, and a glass plate 207 is fixedly connected to the inner wall of the groove. The glass plate 207 is used to observe the cutting position and protect the staff.

[0024] A long sleeve 208 is fixedly connected to the top of the opening and closing plate 206 , a U-shaped rod 210 is rotatably connected to the inner wall of the long sleeve 208 , a connecting block 211 is fixedly connected to the bottom of the U-shaped rod 210 , and one side of the connecting block 211 is fixedly connected to the outer wall of the workbench 11 .

[0025] A baffle 209 is fixedly connected to the top of the long sleeve 208. The baffle 209 is an arc-shaped plate structure, and the baffle 209 is used to protect the sparks and debris above. When the cutter 9 drives the blade 10 to descend and completes cutting the high-quality copper casting gate below, the fixed plate 201 on the outer wall of the cutter 9 is driven down synchronously, and the fixed plate 201 pushes the rotating sleeve 203 and the movable plate 204 to the connecting member 205 through the first rotating rod 202, so that the connecting member 205 and the opening and closing plate 206 are hinged and pushed forward by the movable plate 204, and the connecting member 205 and the opening and closing plate 206 are rotated on the inner wall of the baffle 209 by the upper long sleeve 208. At this time, the opening and closing plate 206 is pushed and the long sleeve 208 is lifted and rotated with the baffle 209 as the center of the circle, so that when cutting the high-quality copper casting, the opening and closing plate 206 will automatically tilt and approach the face of the staff, and as much as possible during the high-speed cutting process, the face of the staff will not be injured by the splashing of debris and sparks, and in the non-cutting state, it is far away from the face, so as not to hinder the staff from placing and clamping the high-quality copper casting at this time; At the same time, the position of the worker's head can also be limited. The deeper the blade 10 descends and the larger the sparks, the farther the opening and closing plate 206 blocks the worker's face from the cutting point, preventing the worker from ignoring the dangers of waste chips and sparks caused by deep cutting due to bad operating habits. At the same time, the baffle 209 above the long sleeve 208 is also tilted toward the cutting area due to the rotation of the long sleeve 208, so that the long sleeve 208 is close to the face of the staff to reduce facial injuries, and the upper baffle 209 is close to the cutting position to reduce the splashing of sparks and debris at the upper position caused by cutting, so as to prevent the sparks and debris from splashing from the upper part and affecting the state of the staff operating the cutting at this time, thereby ensuring the stable cutting and processing of high-quality copper castings. In the non-cutting state, the baffle 209 is kept in a vertical state to reduce the coverage of the cutting position, which is convenient for observation and operation of taking the casting gate; Example 3: Please refer to Figure 1-12 On the basis of the first and second embodiments, the present invention provides a technical solution: a protective mechanism 3 is provided on the outer wall of the opening and closing plate 206, and the protective mechanism 3 includes a second rotating rod 301, one end of the second rotating rod 301 is fixedly connected to the outer wall of the opening and closing plate 206, the outer wall of the second rotating rod 301 is rotatably connected to the opening and closing rod 302, one end of the opening and closing rod 302 is rotatably connected to the third rotating rod 303, a sliding groove 304 is provided on the side of the U-shaped rod 210, one end of the third rotating rod 303 is slidably connected to the inner wall of the sliding groove 304, and an elastic cloth 308 is provided on the outer wall of the opening and closing rod 302.

[0026] The outer wall of the opening and closing rod 302 is rotatably connected with a slide groove 304, the outer wall of the slide groove 304 is fixedly connected to the outer wall of the elastic cloth 308, the outer wall of the elastic cloth 308 is fixedly connected with a fixing column 309, one end of the fixing column 309 is fixedly connected to the outer wall of the opening and closing plate 206, and the elastic cloth 308 is used to protect against sparks.

[0027] The outer wall of the slide groove 304 is fixedly connected to the first telescopic rod 305, the outer wall of the first telescopic rod 305 is fixedly connected to the second telescopic rod 306, one end of the second telescopic rod 306 is fixedly connected to a long plate 307, one side of the long plate 307 is fixedly connected to one side of the opening and closing plate 206, the second telescopic rod 306 is used to limit the first telescopic rod 305 in the telescopic direction, the surface of the elastic cloth 308 is a bright reflective material, and the elastic cloth 308 is elastic.

[0028] The protection mechanism 3 also includes a vertical slide bar 310, which is fixedly connected to the outer wall of the opening and closing plate 206, and a support block 312 and a top plate 314 are fixedly connected to the outer wall of the vertical slide bar 310, and a long spring 313 is fixedly connected between the support block 312 and the top plate 314, and lifting plates 315 are fixedly connected to both sides of the lifting block 311, and a scale groove is provided on the middle vertical bar on the front of the opening and closing plate 206; When the opening and closing plate 206 rotates and is lifted, the second rotating rod 301 of the outer wall will be lifted together, and the third rotating rod 303 is slidably connected to the inner wall of the sliding groove 304, so that the third rotating rod 303 can only slide vertically up and down, and the two ends of the opening and closing rod 302 are hinged to the second rotating rod 301 and the third rotating rod 303, so when the opening and closing plate 206 drives the second rotating rod 301 to be lifted, the second rotating rod 301 starts to move away from the U-shaped rod 210 and pulls the opening and closing rod 302. When the opening and closing rod 302 is pulled, it will start to slide down in the inner wall of the sliding groove 304 through the third rotating rod 303 on the other end, so that the opening and closing rod 302 originally located at the bottom changes from a nearly vertical state to a state of being opened to the rear of the opening and closing plate 206 by rotating on the second rotating rod 301; The first telescopic rod 305 is opened together with the slide slot 304, and the first telescopic rod 305 is limited by the second telescopic rod 306 and can only remain in a vertical state, so the slide slot 304 will drive the first telescopic rod 305 and another slide slot 304 located above to open and close synchronously with the opening and closing rod 302; When the upper and lower opening and closing rods 302 begin to open together, the elastic cloth 308 on the outer wall of the two slide grooves 304 will begin to open because the two slide grooves 304 are moving away from each other, and pull the elastic cloth 308 in the normal state, so that the elastic cloth 308 is pulled open, and the elastic cloth 308 expands elastically. At the same time, the two ends of the elastic cloth 308 are fixed to the fixed column 309, and the other two ends of the elastic cloth 308 are fixed to the slide groove 304. The opened slide groove 304 and the fixed column 309 form an inclined surface, so after the elastic cloth 308 between them is pulled apart, an inclined surface is formed. The surface is aligned with the cutting processing position, and the elastic cloth 308 is automatically stretched and expanded during cutting to ensure that the debris and sparks at the cutting position are fully blocked, so as to prevent a large amount of debris and sparks from splashing and overflowing during cutting, causing safety hazards to external workers and affecting their operation of cutting the high-quality copper casting gate. When the cutting is stopped, the upper and lower opening and closing rods 302 will automatically rotate and retract, and the elastic cloth 308 will also retract, and the two opening and closing rods 302 will rotate back to the two sides of the opening and closing plate 206, reducing the interference of the workers when operating on the workbench 11; And because the two elastic cloths 308 on both sides of the opening and closing plate 206 are inclined surfaces, when the two elastic cloths 308 are opened during cutting, the cutting sparks and firelight generated at the cutting position will be irradiated onto the two elastic cloths 308, and the elastic cloths 308 are aligned with the cutting position at an angle to complete the automatic reflection of the firelight, so that the elastic cloths 308 can reflect light, thereby ensuring the stable highlighting of the cutting point during cutting, and the uniformity of the illumination, so that the staff can cover and protect the sparks and debris, and also use the brightness of the firelight to automatically illuminate the internal cutting position, ensuring the stable and accurate cutting of the high-quality copper casting gate by the staff; The opening and closing angles of the opening and closing plate 206 are lifted to different degrees depending on the degree of foot stepping. When the opening and closing plate 206 is lifted when opening and closing, the higher the lifting angle is, the less the degree to which the weight of the lifting block 311 overcomes the elastic force of the long spring 313 is, and the lifting block 311 begins to be pulled by the resilience of the long spring 313 to slide and rise on the outer wall of the vertical slide bar 310, and the two ends of the lifting block 311 slightly extend out of the vertical bar in the middle of the opening and closing plate 206, so that the front staff can judge the specific degree of the deep cutting at this time by observing the scales on the vertical bar corresponding to the different positions of the lifting block 311 on the vertical bar, which is convenient for the staff to accurately judge the cutting angle depth and angle, and then improve the cutting accuracy of the casting gate; As the cutting is continued, the opening and closing plate 206 is also continuously lifted and lowered to reset. During this process, the lifting block 311 is also continuously slid and lifted to drive the narrower lifting plates 315 at both ends to rise and fall, and the lifting plates 315 are extended to the glass plate 207 to scrape off the spark condensates and metal particles attached to the surface of the glass plate 207 due to cutting, so as to ensure that the staff can visually observe the specific cutting conditions inside the glass plate 207 to avoid affecting the cutting accuracy.

[0029] A precision casting gate cutting method comprises the following steps: S1: When in use, when it is necessary to cut the pouring mouth of high-quality copper or titanium castings, place them on the workbench 11 in the frame 1; S2: Then, the cutter 9 is started to control the blade 10 to rotate, thereby completing the cutting of the casting gate; S3: Place the high-quality copper casting sprue to be cut on the workbench 11 and align it with the blade 10; S3: The worker sits in front of the frame 1 and steps on the pedal 4, so that the cutter 9 and the blade 10 are lowered as a whole, and the high-speed rotation of the blade 10 is used to complete the cutting work of the casting gate.

[0030] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision casting gate cutting machine, comprising a frame (1), a workbench (11) is arranged inside the frame (1), a first rotating shaft (12) is fixedly connected to the inner wall of the frame (1), a hinge rod (5) is rotatably connected to the outside of the first rotating shaft (12), one end of the hinge rod (5) is fixedly connected to a pedal (4), the other end of the hinge rod (5) is hinged to a hinge member (6), a push rod (7) is hinged to the inner wall of the hinge member (6), a hinge plate (8) is hinged to the top of the push rod (7), the inner wall of the hinge plate (8) is rotatably connected to a second rotating shaft (13), both ends of the second rotating shaft (13) are fixedly connected to the inner wall of the frame (1), a cutter (9) is fixedly connected to the top of the hinge plate (8), a blade (10) is arranged inside the cutter (9), and the characteristics are: The outer wall of the workbench (11) is provided with a cutting mechanism (2); The cutting mechanism (2) comprises: A fixed plate (201), the fixed plate (201) being a square plate-shaped structure, one end of the fixed plate (201) being fixedly connected to the outer wall of the cutter (9), the outer wall of the fixed plate (201) being fixedly connected to a first rotating rod (202), the outer wall of the first rotating rod (202) being rotatably connected to a rotating sleeve (203), the outer wall of the rotating sleeve (203) being fixedly connected to a movable plate (204), the fixed plate (201) being used to connect the cutter (9) and the first rotating rod (202); An opening and closing plate (206) is a square frame structure, one side of the opening and closing plate (206) is fixedly connected to a connecting piece (205), the connecting piece (205) is hinged to one end of the movable plate (204), and the opening and closing plate (206) is used to play a protective role.

2. A precision casting gate cutting machine according to claim 1, characterized in that: The inner wall of the opening and closing plate (206) is provided with a groove, and the inner wall of the groove is fixedly connected to a glass plate (207), and the glass plate (207) is used to observe the cutting position.

3. A precision casting gate cutting machine according to claim 2, characterized in that: The top of the opening and closing plate (206) is fixedly connected to a long sleeve (208), the inner wall of the long sleeve (208) is rotatably connected to a U-shaped rod (210), the bottom of the U-shaped rod (210) is fixedly connected to a connecting block (211), and one side of the connecting block (211) is fixedly connected to the outer wall of the workbench (11).

4. A precision casting gate cutting machine according to claim 3, characterized in that: A baffle (209) is fixedly connected to the top of the long sleeve (208); the baffle (209) is an arc-shaped plate structure; the baffle (209) is used to protect sparks and debris above.

5. A precision casting gate cutting machine according to claim 4, characterized in that: The outer wall of the opening and closing plate (206) is provided with a protection mechanism (3), the protection mechanism (3) comprising a second rotating rod (301), one end of the second rotating rod (301) being fixedly connected to the outer wall of the opening and closing plate (206), the outer wall of the second rotating rod (301) being rotatably connected to an opening and closing rod (302), one end of the opening and closing rod (302) being rotatably connected to a third rotating rod (303), a sliding groove (304) being provided on a side surface of the U-shaped rod (210), one end of the third rotating rod (303) being slidably connected to an inner wall of the sliding groove (304), and an elastic cloth (308) being provided on the outer wall of the opening and closing rod (302).

6. A precision casting gate cutting machine according to claim 5, characterized in that: The outer wall of the opening and closing rod (302) is rotatably connected to a slide groove (304), the outer wall of the slide groove (304) is fixedly connected to the outer wall of the elastic cloth (308), the outer wall of the elastic cloth (308) is fixedly connected to a fixing column (309), one end of the fixing column (309) is fixedly connected to the outer wall of the opening and closing plate (206), and the elastic cloth (308) is used to protect against sparks.

7. A precision casting gate cutting machine according to claim 6, characterized in that: The outer wall of the slide groove (304) is fixedly connected to a first telescopic rod (305), the outer wall of the first telescopic rod (305) is fixedly connected to a second telescopic rod (306), one end of the second telescopic rod (306) is fixedly connected to a long strip (307), one side of the long strip (307) is fixedly connected to one side of the opening and closing plate (206), the second telescopic rod (306) is used to limit the first telescopic rod (305) in the telescopic direction, the surface of the elastic cloth (308) is a bright reflective material, and the elastic cloth (308) is elastic.

8. A precision casting gate cutting machine according to claim 7, characterized in that: The protection mechanism (3) further comprises a vertical slide bar (310), wherein the vertical slide bar (310) is fixedly connected to the outer wall of the opening and closing plate (206), a support block (312) and a top plate (314) are fixedly connected to the outer wall of the vertical slide bar (310), a long spring (313) is fixedly connected between the support block (312) and the top plate (314), a lifting plate (315) is fixedly connected to both sides of the lifting block (311), and a scale groove is provided on the middle vertical bar on the front side of the opening and closing plate (206).

9. A method for cutting a precision casting gate, according to a precision casting gate cutting machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: When in use, when it is necessary to cut the pouring mouth of a high-quality copper or titanium casting, place it on the workbench (11) in the frame (1); S2: Then, the cutter (9) is started to control the blade (10) to rotate, thereby completing the cutting of the casting gate; S3: Place the high-quality copper casting sprue to be cut on the workbench (11), and align it with the blade (10); S3: A worker sits in front of the frame (1) and steps on the pedal (4), thereby causing the cutter (9) and the blade (10) to descend as a whole, and uses the high-speed rotation of the blade (10) to complete the cutting of the casting gate.

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