A metal manufacturing cutting machine capable of quickly adjusting distance and a cutting method thereof

Abstract

The present invention discloses a metal manufacturing cutting machine and a cutting method thereof, which can quickly adjust the distance. The cutting machine and a cutting method thereof relate to the field of metal manufacturing technology, and include a cutting seat, a cutting motor and a cutting knife. A mounting seat is fixed to the upper surface of the cutting seat, a disc is fixed to the front side of the mounting seat, a cutting knife is fixed to the front side of the pulley at the output end of the cutting motor, a collecting cover is installed at the front end of the cutting seat, a rectangular block is fixed to the bottom end of the cutting seat, and a cutting knife is arranged directly above the cutting groove. The metal manufacturing cutting machine and a cutting method thereof, which can quickly adjust the distance between the metal workpiece and the cutting knife, are convenient for cutting out metal workpieces of a desired length. When the cutting knife rotates to cut the workpiece, the transmission structure drives the stirring rod to rotate and stir the sand, and the rotation of the sand is used to quickly extinguish the spark, thereby improving the spark extinguishing effect. The transmission structure is used to reduce the number of power equipment and reduce costs.

Description

Technical Field

[0001] The invention relates to the technical field of metal manufacturing, in particular to a metal manufacturing cutting machine capable of quickly adjusting distance and a cutting method thereof. Background Art

[0002] When manufacturing metal, it is necessary to use a metal cutting machine to cut the metal workpiece into a desired shape and then weld it. The metal cutting machine is a commonly used cutting equipment and is widely used in production. In the prior art, the metal workpiece is fixed by a fixed structure during cutting to improve the cutting accuracy.

[0003] The Chinese invention patent with the authorization announcement number CN110666240B discloses a metal cutting machine, including a base, a quick clamping mechanism and a fixed seat are arranged on the base, the quick clamping mechanism passes through the fixed seat, a manual movable switch for fixing the quick clamping mechanism is arranged on the fixed seat, a mounting seat is arranged on the base, and also includes a cutting device, the cutting device is hinged to the mounting seat through a rotating shaft, a groove structure is arranged at the position where the cutting device is hinged to the mounting seat through the rotating shaft, a lock for locking the cutting device is also arranged on one side of the mounting seat, the lock includes a fixing rod with a through-hole structure and a locking rod passing through the fixing rod through-hole structure, the locking rod has a circular hole structure, an axle pin passing through the circular hole structure is arranged on the locking rod, two groups of circular arc groove structures are arranged on the side of the fixing rod close to the locking rod, the axle pin can be fixed in the two groups of circular arc grooves by angle rotation, so as to achieve the effects of safe and efficient operation, time saving and labor saving;

[0004] For example, a Chinese utility model patent with authorization announcement number CN213053024U discloses a spark-proof metal cutting machine, which belongs to the technical field of cutting machines and includes a motor, a cutting disc connected to the driving end of the motor, a protective shell half-enclosing the rear of the cutting disc, a hand-held handle fixedly provided on the motor housing, a control handle fixedly provided on the outside of the protective shell, and a spark absorbing device connected to the bottom of the protective shell; the spark absorbing device includes an outer shell and sand, an opening is provided on the front side of the outer shell, and a blocking plate is provided at the bottom of the opening. The utility model provides a spark-proof metal cutting machine, in which an operator holds the hand-held handle and the control handle, turns on the cutting machine to perform cutting operations, and sparks generated during the cutting operation enter the spark absorbing device at the bottom of the protective shell under the action of the centrifugal force of the high-speed rotating cutting disc. Since sand is placed in the spark absorbing device, the sparks will be immediately extinguished by the sand after entering, thereby preventing sparks from splashing;

[0005] However, existing metal manufacturing cutting machines still have the following problems:

[0006] 1. It is not possible to quickly adjust the distance between the end of the metal workpiece and the cutting knife, making it inconvenient to adjust the cutting length of the metal workpiece;

[0007] 2. Sparks will be generated during the cutting process. In order to avoid sparks flying, sand is set in the protective structure to extinguish the sparks by the sand to avoid sparks flying. However, the effect of extinguishing sparks by static sand is poor. Therefore, we propose a metal manufacturing cutting machine with quick adjustable distance and a cutting method thereof to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide a metal manufacturing cutting machine and a cutting method thereof that can quickly adjust the distance, so as to solve the problem that the existing metal manufacturing cutting machine proposed in the above background technology cannot quickly adjust the distance between the end of the metal workpiece and the cutting knife, thereby making it inconvenient to adjust the cutting length of the metal workpiece, and sparks will be generated during the cutting process. In order to avoid sparks flying, sand is set in the protective structure to extinguish the sparks by the sand to avoid sparks flying, but the effect of extinguishing sparks by the stationary sand is poor.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a metal manufacturing cutting machine capable of quickly adjusting the distance, comprising a cutting seat, a cutting motor and a cutting knife:

[0010] A mounting seat is fixed on the upper surface of the cutting seat, and a mounting frame is rotatably connected to the inner side of the mounting seat, a disc is fixed to the front side of the mounting frame, and a pulley is rotatably connected to the front end of the disc, a transmission belt is arranged on the outer side of the pulley, a handle is fixed to the outer side of the mounting frame, a cutting motor is fixed to the top of the mounting frame, and a pulley is fixed to the output end of the cutting motor, a protective cover is fixed to the front side of the cutting motor, and a cutting knife is fixed to the front side of the pulley at the output end of the cutting motor;

[0011] A collecting cover is installed at the front end of the cutting seat, and a stirring rod is rotatably connected inside the collecting cover, and a guide plate is fixed at the left end of the collecting cover;

[0012] A connecting seat is fixed on the upper surface of the cutting seat, and a screw rod is connected to the inner thread of the connecting seat, a rotating rod is fixed to the left end of the screw rod, and the right end of the screw rod passes through the inside of the connecting rod, a first clamping plate is arranged on the outer side of the connecting rod, and a second clamping plate is arranged on the right side of the first clamping plate;

[0013] A mounting column is fixed to the bottom end of the second clamping plate, and a partition is fixed to the lower surface of the mounting column, a rectangular block is fixed to the bottom end of the cutting seat, and a spring is fixed to the left side of the rectangular block, a clamping block is fixed to the left side of the spring, a tape measure is fixed to the lower surface of the mounting column, a ruler is wound around the inside of the tape measure, and a cross bar is fixed to the end of the ruler away from the tape measure, a vertical bar is fixed to the left side of the cross bar, and a placement seat is fixed to the upper surface of the vertical bar, a limiting shell is fixed to the upper surface of the placement seat, and a reverse screw rod is rotatably connected to the inside of the limiting shell, and the outer end of the reverse screw rod is threadedly connected to a fixing plate, a cutting groove is opened in the interior of the cutting seat, and a cutting knife is arranged directly above the cutting groove.

[0014] Preferably, the longitudinal section of the connection between the pulley and the disc is a T-shaped structure, and a pulley is fixed to the rear side of the stirring rod.

[0015] Preferably, the cutting knife is rotatably connected to the inside of the protective cover.

[0016] Preferably, the longitudinal section of the guide plate is in a triangular structure, and an opening opened inside the collection cover is provided on the left side of the guide plate.

[0017] Preferably, the first clamping plate and the connecting rod form a rotating structure.

[0018] Preferably, the mounting post is rotatably mounted in the cutting seat, and limiting grooves are provided at equal angles at the bottom end of the mounting post, and the connection between the clamping block and the mounting post is a clamping connection.

[0019] Preferably, the rectangular block, the spring and the clamping block are combined into a limiting structure.

[0020] Preferably, the upper surface of the placement seat is flush with the upper surface of the cutting seat, the fixing plate is symmetrically arranged about the center line of the placement seat, and the fixing plate and the limiting shell form a sliding structure.

[0021] A cutting method for a metal manufacturing cutting machine capable of quickly adjusting distance, comprising the following steps;

[0022] Step 1: Place the metal workpiece on the left side of the second clamping plate;

[0023] Step 2: Place the seat and the fixing plate to clamp the metal workpiece, and measure the cutting length of the metal workpiece using a tape measure and a ruler;

[0024] Step 3: manually rotating the screw rod to move the first clamping plate, fixing the metal workpiece by the first clamping plate and the second clamping plate, and rotating the metal workpiece by rotating the first clamping plate and the second clamping plate when the metal workpiece is cut at an angle;

[0025] Step 4: Press the handle downward, the cutting motor drives the cutting blade and the stirring rod to rotate, the rotation of the stirring rod cuts the metal workpiece, and the rotation of the stirring rod stirs the sand inside the collecting cover, the cutting sparks are absorbed by the collecting cover, and the stirred sand extinguishes the sparks;

[0026] Step 5: After cutting, rotate the screw and reverse screw counterclockwise to remove the metal workpiece.

[0027] Compared with the prior art, the invention has the following beneficial effects: the metal manufacturing cutting machine and cutting method capable of quickly adjusting the distance between the metal workpiece and the cutting knife can quickly adjust the distance between the metal workpiece and the cutting knife, so as to facilitate cutting of the metal workpiece of required length; when the cutting knife rotates to cut the workpiece, the stirring rod is driven to rotate and stir the sand through the transmission structure, and the rotation of the sand is used to quickly extinguish the spark, thereby improving the spark extinguishing effect; the transmission structure is used to reduce the number of power equipment and reduce the cost;

[0028] 1. Place the metal workpiece on the cutting seat, the metal workpiece is located on the left side of the second clamping plate, the end of the metal workpiece is placed on the placement seat, the reverse screw is rotated, the two sets of fixing plates move relatively, the end of the metal workpiece is fixed by the two sets of fixing plates, the metal workpiece is pulled outward, the ruler is pulled out from the inside of the tape measure, and the distance between the end of the metal workpiece and the cutting knife is observed by observing the size data on the ruler, so as to quickly adjust the distance between the metal workpiece and the cutting knife, so as to cut the metal workpiece of the required length;

[0029] After adjusting the length of the metal workpiece to be cut, the metal workpiece is fixed by the first clamping plate and the second clamping plate, and the ruler is limited to prevent the ruler from moving;

[0030] 2. When cutting metal workpieces, turn the mounting frame downward, the disc rotates relative to the pulley, the transmission belt rotates, and the inclination angle of the transmission belt is changed. When the cutting motor drives the cutting knife to rotate, the transmission stirring rod through the pulley and the transmission belt rotates. The stirring rod rotates inside the collection cover to stir the sand inside the collection cover, and the rotation of the sand is used to quickly extinguish the spark, thereby improving the spark extinguishing effect;

[0031] When the stirring rod rotates, the pulley connected to the stirring rod rotates rapidly relative to the disc to prevent the mounting frame and the stirring rod from rotating at the same speed;

[0032] 3. When adjusting the angle of the second clamping plate, the mounting column rotates, and the mounting column is quickly limited by the limiting structure composed of the rectangular block, the spring and the clamping block, so as to facilitate the rapid positioning of the second clamping plate after adjusting the angle of the second clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front perspective structural schematic diagram of the present invention;

[0034] Figure 2 This is a bottom perspective structural diagram of the present invention;

[0035] Figure 3 This is a schematic diagram of the cutting structure of the collecting cover of the present invention;

[0036] Figure 4 This is a schematic diagram of the connection structure between the clamp block and the mounting column of the present invention;

[0037] Figure 5 It is a schematic diagram of the connection structure between the pulley and the disc of the present invention;

[0038] Figure 6 Schematic diagram of the connection structure between the stirring rod and the collecting cover of the present invention

[0039] Figure 7 It is a schematic diagram of the connection structure between the pulley and the transmission belt of the present invention;

[0040] Figure 8 A schematic diagram of the top perspective structure of the present invention;

[0041] Fig. 9 It is a schematic structural diagram of the second clamping plate in the rotating state of the present invention.

[0042] In the figure: 1. cutting seat; 2. mounting seat; 3. mounting frame; 4. disc; 5. pulley; 6. transmission belt; 7. handle; 8. cutting motor; 9. protective cover; 10. cutting knife; 11. stirring rod; 12. collecting cover; 13. guide plate; 14. connecting seat; 15. screw rod; 16. rotating rod; 17. connecting rod; 18. first clamping plate; 19. second clamping plate; 20. mounting column; 21. partition; 22. rectangular block; 23. spring; 24. block; 25. measuring tape; 26. ruler; 27. horizontal rod; 28. vertical rod; 29. ​​placing seat; 30. limiting shell; 31. reverse screw rod; 32. fixing plate; 33. cutting groove. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1: Please refer to Figure 1-Figure 9 The existing metal manufacturing cutting machine cannot quickly adjust the distance between the end of the metal workpiece and the cutting blade 10, so it is not convenient to adjust the cutting length of the metal workpiece. In order to solve this technical problem, this embodiment discloses the following technical content;

[0045] A metal manufacturing cutting machine capable of quickly adjusting the distance, wherein a mounting seat 2 is fixed on the upper surface of a cutting seat 1, and a mounting frame 3 is rotatably connected to the inner side of the mounting seat 2, a handle 7 is fixed to the outer side of the mounting frame 3, a cutting motor 8 is fixed to the top of the mounting frame 3, a protective cover 9 is fixed to the front side of the cutting motor 8, and a cutting knife 10 is fixed to the front side of a pulley 5 at the output end of the cutting motor 8, and the cutting knife 10 is rotatably connected to the inside of the protective cover 9;

[0046] A connecting seat 14 is fixed on the upper surface of the cutting seat 1, and a screw rod 15 is connected to the inner thread of the connecting seat 14, a rotating rod 16 is fixed to the left end of the screw rod 15, and the right end of the screw rod 15 passes through the inside of the connecting rod 17, a first clamping plate 18 is arranged on the outer side of the connecting rod 17, the first clamping plate 18 and the connecting rod 17 form a rotating structure, and a second clamping plate 19 is arranged on the right side of the first clamping plate 18;

[0047] A mounting column 20 is fixed to the bottom end of the second clamping plate 19, a tape measure 25 is fixed to the lower surface of the mounting column 20, a ruler strip 26 is wound inside the tape measure 25, and a cross bar 27 is fixed to the end of the ruler strip 26 away from the tape measure 25, a vertical bar 28 is fixed to the left side of the cross bar 27, and a placement seat 29 is fixed to the upper surface of the vertical bar 28, a limiting shell 30 is fixed to the upper surface of the placement seat 29, and a reverse screw rod 31 is rotatably connected to the inside of the limiting shell 30, and a fixing plate 32 is threadedly connected to the outer end of the reverse screw rod 31, the upper surface of the placement seat 29 is flush with the upper surface of the cutting seat 1, the fixing plate 32 is symmetrically arranged about the center line of the placement seat 29, and the fixing plate 32 and the limiting shell 30 form a sliding structure, a cutting groove 33 is opened inside the cutting seat 1, and a cutting knife 10 is arranged just above the cutting groove 33;

[0048] Place the metal workpiece on the left side of the second clamping plate 19, place the front end of the metal workpiece on the placement seat 29, rotate the reverse screw rod 31, move the fixing plate 32 threadedly connected to the reverse screw rod 31, fix the front end of the metal workpiece by two sets of fixing plates 32, and then pull the metal workpiece forward, so that the ruler 26 is pulled out from the inside of the measuring tape 25, and the length of the metal workpiece cut off is understood by observing the size data on the pulled ruler 26;

[0049] After pulling out the metal workpiece of the required length, hold the rotating rod 16, rotate the rotating rod 16 and the screw 15, and as the screw 15 rotates clockwise, the connecting rod 17 and the first clamping plate 18 move to the right, so that the right side surface of the first clamping plate 18 fits the metal workpiece, thereby fixing the metal workpiece;

[0050] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1. The existing metal manufacturing cutting machine cannot quickly fix the clamping plate after adjusting the angle of the clamping plate. In order to solve this technical problem, this embodiment discloses the following technical content, please refer to Figure 1 , Figure 2 and Figure 4 ;

[0051] A partition plate 21 is fixed to the lower surface of the mounting column 20, a rectangular block 22 is fixed to the bottom end of the cutting seat 1, a spring 23 is fixed to the left side of the rectangular block 22, a clamping block 24 is fixed to the left side of the spring 23, the mounting column 20 is rotatably mounted in the cutting seat 1, and a limiting groove is provided at an equal angle at the bottom end of the mounting column 20, the clamping block 24 is connected to the mounting column 20 in a snap-fit ​​connection, and the rectangular block 22, the spring 23 and the clamping block 24 are combined into a limiting structure;

[0052] When the metal workpiece needs to be cut at an angle, the clamping block 24 is moved to the right so that the clamping block 24 leaves the mounting column 20, and then the mounting column 20 and the second clamping plate 19 are rotated. After the angle of the second clamping plate 19 is adjusted, the clamping block 24 is released, and the clamping block 24 is inserted into the inside of the mounting column 20 to limit the mounting column 20 and the second clamping plate 19. The first clamping plate 18 is rotated outside the connecting rod 17 so that the first clamping plate 18 is parallel to the second clamping plate 19.

[0053] Embodiment 3: Existing metal cutting machines generate sparks during the cutting process. To prevent sparks from flying, sand is placed inside the protective structure to extinguish the sparks. However, the effect of static sand in extinguishing sparks is poor. To solve this technical problem, this embodiment discloses the following technical content, please refer to Figure 1-Figure 3 and Figure 5-Figure 7 ;

[0054] A disc 4 is fixed to the front side of the mounting frame 3, and a pulley 5 is rotatably connected to the front end of the disc 4, a transmission belt 6 is arranged on the outside of the pulley 5, a pulley 5 is fixed to the output end of the cutting motor 8, the longitudinal section of the connection between the pulley 5 and the disc 4 is a T-shaped structure, a pulley 5 is fixed to the rear side of the stirring rod 11, a collecting cover 12 is installed at the front end of the cutting seat 1, and the inside of the collecting cover 12 is rotatably connected to the stirring rod 11, and a guide plate 13 is fixed to the left end of the collecting cover 12, the longitudinal section of the guide plate 13 is a triangular structure, and an opening opened inside the collecting cover 12 is arranged on the left side of the guide plate 13;

[0055] The staff member holds the handle 7 with his hand, and then turns the handle 7 and the cutting motor 8 downward. After the cutting knife 10 is attached to the metal workpiece, the cutting motor 8 is turned on. The cutting motor 8 drives the pulley 5, the transmission belt 6, the cutting knife 10 and the stirring rod 11 to rotate. The rotation and downward rotation of the cutting knife 10 cut the metal workpiece. The rotation of the stirring rod 11 causes the sand inside the collecting cover 12 to rotate and stir the sand inside the collecting cover 12. Sparks generated during the cutting of the metal workpiece by the cutting knife 10 enter the interior of the collecting cover 12, and the sparks are extinguished by the rotation of the sand, thereby avoiding spark reflection and improving the spark extinguishing effect.

[0056] The above completes a series of operations of the metal manufacturing cutting machine with quick adjustable distance and the cutting method thereof. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0057] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal manufacturing cutting machine capable of quickly adjusting the distance, comprising a cutting seat (1), a cutting motor (8) and a cutting blade (10), characterized in that: A mounting seat (2) is fixed on the upper surface of the cutting seat (1), and a mounting frame (3) is rotatably connected to the inner side of the mounting seat (2), a disc (4) is fixed to the front side of the mounting frame (3), and a pulley (5) is rotatably connected to the front end of the disc (4), a transmission belt (6) is arranged on the outer side of the pulley (5), a handle (7) is fixed to the outer side of the mounting frame (3), a cutting motor (8) is fixed to the top of the mounting frame (3), and a pulley (5) is fixed to the output end of the cutting motor (8), a protective cover (9) is fixed to the front side of the cutting motor (8), and a cutting knife (10) is fixed to the front side of the pulley (5) at the output end of the cutting motor (8); A collecting hood (12) is installed at the front end of the cutting seat (1), a stirring rod (11) is rotatably connected inside the collecting hood (12), and a guide plate (13) is fixed at the left end of the collecting hood (12); A connecting seat (14) is fixed on the upper surface of the cutting seat (1), and a screw rod (15) is connected to the internal thread of the connecting seat (14); a rotating rod (16) is fixed to the left end of the screw rod (15), and the right end of the screw rod (15) passes through the inside of the connecting rod (17); a first clamping plate (18) is arranged on the outside of the connecting rod (17), and a second clamping plate (19) is arranged on the right side of the first clamping plate (18); A mounting column (20) is fixed to the bottom end of the second clamping plate (19), and a partition plate (21) is fixed to the lower surface of the mounting column (20); a rectangular block (22) is fixed to the bottom end of the cutting seat (1), and a spring (23) is fixed to the left side of the rectangular block (22), and a clamping block (24) is fixed to the left side of the spring (23); a measuring tape (25) is fixed to the lower surface of the mounting column (20), a ruler (26) is wound around the inside of the measuring tape (25), and a cross bar (27) is fixed to the end of the ruler (26) away from the measuring tape (25), and a vertical bar (28) is fixed to the left side of the cross bar (27), and the vertical bar (28) is fixed to the left side of the cross bar (27). A placement seat (29) is fixed on the upper surface of the placement seat (28), a limiting shell (30) is fixed on the upper surface of the placement seat (29), and a reverse screw rod (31) is rotatably connected inside the limiting shell (30), and the outer end of the reverse screw rod (31) is threadedly connected to a fixing plate (32), a cutting groove (33) is provided inside the cutting seat (1), and a cutting knife (10) is provided directly above the cutting groove (33), the mounting column (20) is rotatably mounted in the cutting seat (1), and a limiting groove is provided at an equal angle at the bottom end of the mounting column (20), and the connection method of the clamping block (24) and the mounting column (20) is a snap-fit ​​connection.

2. A metal manufacturing cutting machine capable of quickly adjusting the distance according to claim 1, characterized in that: The longitudinal section of the connection between the belt pulley (5) and the disc (4) is in a T-shaped structure, and the belt pulley (5) is fixed to the rear side of the stirring rod (11).

3. A metal manufacturing cutting machine capable of quickly adjusting the distance according to claim 1, characterized in that: The cutting knife (10) is rotatably connected to the inside of the protective cover (9).

4. A metal manufacturing cutting machine capable of quickly adjusting the distance according to claim 1, characterized in that: The longitudinal section of the guide plate (13) is in a triangular structure, and an opening opened inside the collection cover (12) is provided on the left side of the guide plate (13).

5. A metal manufacturing cutting machine capable of quickly adjusting the distance according to claim 1, characterized in that: The first clamping plate (18) and the connecting rod (17) form a rotating structure.

6. A metal manufacturing cutting machine capable of quickly adjusting the distance according to claim 1, characterized in that: The rectangular block (22), the spring (23) and the clamping block (24) are combined into a limiting structure.

7. A metal manufacturing cutting machine capable of quickly adjusting the distance according to claim 1, characterized in that: The upper surface of the placement seat (29) is flush with the upper surface of the cutting seat (1), the fixing plate (32) is symmetrically arranged about the center line of the placement seat (29), and the fixing plate (32) and the limiting shell (30) form a sliding structure.

8. A cutting method for a metal manufacturing cutting machine capable of quickly adjusting the distance as claimed in claim 1, characterized in that: The steps include: Step 1: placing the metal workpiece on the left side of the second clamping plate (19); Step 2: clamp the metal workpiece with the placement seat (29) and the fixing plate (32), and measure the cutting length of the metal workpiece with the measuring tape (25) and the ruler (26); Step 3: manually rotating the screw rod (15) to move the first clamping plate (18), fixing the metal workpiece by the first clamping plate (18) and the second clamping plate (19), and rotating the metal workpiece by rotating the first clamping plate (18) and the second clamping plate (19) when the metal workpiece is cut at an angle; Step 4: Press the handle (7) downward, the cutting motor (8) drives the cutting blade (10) and the stirring rod (11) to rotate, the rotation of the stirring rod (11) cuts the metal workpiece, and the rotation of the stirring rod (11) stirs the sand inside the collecting cover (12), the cutting sparks are absorbed by the collecting cover (12), and the stirred sand extinguishes the sparks; Step 5: After cutting is completed, rotate the screw (15) and the reverse screw (31) counterclockwise to remove the metal workpiece.

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