Screw cutting machining device and machining process

Abstract

The invention discloses a screw rod cutting machining device and a machining process, and relates to the technical field of bolt machining, the screw rod cutting machining device comprises a rack, two vertical grooves are symmetrically formed in the inner side of the rack, transverse adjusting frames are movably arranged on the inner walls of the two vertical grooves, a driving piece is arranged in one vertical groove, and the driving piece is arranged in the other vertical groove; the end, inserted into the vertical groove, of the transverse adjusting frame is sleeved with the driving piece in a threaded mode. When the transverse adjusting frame is reset, the movable block is controlled by the transverse adjusting frame to move towards the first toothed plate, so that the first toothed plate drives the first gear nut to rotate, the positioning rod is promoted to move to be separated from the tool bit, the tool bit is promoted to be out of limit, and then the tool bit is conveniently replaced; the transverse adjusting frame drives the second toothed plate to move downwards, so that the second toothed plate drives the second gear nut to rotate, the abutting rod is promoted to move and abut against the other end of the workpiece along with rotation of the second gear nut, the position of the workpiece is fixed in cooperation with the sleeve, and therefore the workpiece is more convenient to fix.

Description

Technical Field

[0001] The invention relates to the technical field of bolt processing, and in particular to a screw cutting processing device and a processing technology. Background Art

[0002] Thread cutting processing or production refers to the process or production of processing large quantities of threaded parts using automatic multi-axis machine tools. Thread cutting is the most efficient and economical processing method for processing threaded parts. The continuous protrusions and grooves with the same cross-section formed along the spiral line on the cylindrical surface are called threads.

[0003] The existing patent (Announcement No.: CN212265172U) discloses a cutting device for high-viscosity screw pump processing, including a base plate, support plates are provided on the left and right sides of the upper surface of the base plate, a first slide groove is provided on the upper part of the support plate, the first slide groove is slidably connected to the left and right sides of the lifting plate, the left side of the lifting plate is threadedly connected to the middle part of the first screw rod, and the lower part of the first screw rod is rotatably connected to the left side of the upper surface of the base plate. In the process of implementing this solution, it was found that the following problems exist in the prior art and have not been well solved: the cutter head of the device is installed at the bottom of the movable block, and the cutter head is generally fixed by multiple bolts. When the cutter head needs to be replaced, the operator needs to use tools to remove the bolts before the cutter head can be replaced, so it is more troublesome to replace the cutter head. Summary of the invention

[0004] In order to improve the problem that the cutter head of the above-mentioned device is installed at the bottom of the movable block, the cutter head is generally fixed by a plurality of bolts. When the cutter head needs to be replaced, the operator needs to use tools to remove the bolts, and then the cutter head can be replaced, so the cutter head replacement is troublesome. The present invention provides a screw cutting processing device and a processing technology.

[0005] The present invention provides a screw cutting device and a processing technology, which adopts the following technical solutions:

[0006] A screw cutting processing device comprises a frame, wherein two vertical slots are symmetrically provided on the inner side of the frame, and the inner walls of the two vertical slots are movably provided with transverse adjustment frames, a driving member is provided in one of the vertical slots, and one end of the transverse adjustment frame inserted into the vertical slot is threadedly sleeved on the driving member, a movable block is provided in the transverse adjustment frame, a cutter head is clamped on the side wall of the movable block, a first gear nut is rotatably provided on the side wall of the movable block, a positioning rod is movably provided in the movable block, one end of the positioning rod is movably plugged with the cutter head, and the other end of the positioning rod extends out of the movable block The first gear nut is threadedly inserted into the first gear nut, and a first tooth plate corresponding to the first gear nut is fixedly provided on the inner side wall of the frame, and the first tooth plate is meshed with the first gear nut. A first motor is provided on one side of the inner wall of the frame, and a sleeve is fixedly provided on the rotating shaft of the first motor. A second gear nut is rotatably provided on the other side of the inner wall of the frame, and a resistance rod is inserted into the inner thread of the second gear nut, and the axis of the resistance rod is coaxial with the axis of the sleeve. A second tooth plate is fixedly provided on the side wall of the lateral adjustment frame, and the second tooth plate is meshed with the second gear nut.

[0007] Through the above technical scheme, one end of the workpiece is first inserted into the sleeve, and then the driving member is started to control the lateral adjustment frame to move downward, thereby causing the cutter head to contact the workpiece, and the second tooth plate is driven downward by the lateral adjustment frame, thereby driving the second gear nut to rotate through the second tooth plate, and as the second gear nut rotates, the interference rod is prompted to move and contact the other end of the workpiece, and cooperate with the sleeve to fix the position of the workpiece, and the first motor is used to drive the sleeve and the workpiece to rotate, and at the same time, the cutter head is controlled to move through the lateral adjustment frame, and then the workpiece is cut.

[0008] Optionally, in the above-mentioned screw cutting processing device, a guide rod is fixedly provided on the inner wall of the vertical groove, and one end of the lateral adjustment frame away from the driving member is inserted into the vertical groove and movably sleeved on the guide rod.

[0009] Through the above technical solution, the movement of the lateral adjustment frame away from the driving member can be limited by the guide rod.

[0010] Optionally, in the above-mentioned screw cutting processing device, the driving member includes a second motor and a first screw, the first screw is rotatably set in a vertical groove, the second motor is fixedly set on the top of the frame, and the rotating shaft of the second motor is fixedly connected to the upper end of the first screw.

[0011] Through the above technical solution, the second motor can easily drive the first screw rod to rotate, and as the first screw rod rotates, the lateral adjustment frame moves along the inner wall of the vertical slot.

[0012] Optionally, in the above-mentioned screw cutting processing device, a third motor is fixedly provided on the inner wall of the lateral adjustment frame, a reciprocating screw is fixedly provided on the rotating shaft of the third motor, and one end of the reciprocating screw away from the third motor is rotatably connected to the inner wall of the lateral adjustment frame.

[0013] Through the above technical solution, the third motor is used to drive the reciprocating screw to rotate, and as the reciprocating screw rotates, the movable block drives the cutter head to move along the inner wall of the transverse adjustment frame.

[0014] Optionally, in the above-mentioned screw cutting processing device, the movable block is provided with an internal threaded hole compatible with the reciprocating screw, the movable block is provided with a movable groove, and the positioning rod is movably arranged in the movable groove.

[0015] Through the above technical solution, as the reciprocating screw rotates, the movable block drives the cutter head to move along the axial direction of the reciprocating screw, and the positioning rod is easily assembled through the movable groove.

[0016] Optionally, in the above-mentioned screw cutting processing device, the positioning rod includes a U-shaped rod and a second screw, one end of the second screw extends out of the movable block and is threadedly inserted into the first gear nut, the other end of the second screw is fixedly connected to the U-shaped rod, and the end of the U-shaped rod away from the second screw is movably inserted into the cutter head.

[0017] Through the above technical solution, the reciprocating screw is driven to rotate by the third motor, thereby prompting the movable block to move toward the first tooth plate, thereby driving the first gear nut to rotate through the first tooth plate, and prompting the second screw to drive the U-shaped rod to move and separate from the cutter head, thereby causing the cutter head to lose its limit.

[0018] Optionally, in the above-mentioned screw cutting processing device, one end of the resistance rod passes through the second gear nut and is rotatably provided with a turntable, the outer wall of the resistance rod is provided with an external thread corresponding to the second gear nut, the other end of the resistance rod is fixedly provided with a connecting plate, the lower end of the connecting plate is fixedly provided with a round rod, the end of the round rod away from the connecting plate passes through the frame and is fixedly provided with a scraper, and the inner bottom wall of the frame is symmetrically provided with two discharge ports.

[0019] Through the above technical solution, when the resistance rod moves, it is easy to drive the connecting plate, the round rod and the scraper to move, so as to push the debris into the discharge port for discharge.

[0020] Another technical solution proposed by the present invention is a screw cutting processing device and a processing technology, comprising the following steps:

[0021] S101: First, one end of the workpiece is inserted into the sleeve, and then the driving member is started to control the lateral adjustment frame to move downward, so that the cutter head contacts the workpiece;

[0022] S102: The second tooth plate is driven to move downward by the lateral adjustment frame, so that the second tooth plate drives the second gear nut to rotate. As the second gear nut rotates, the interference rod is moved to interfere with the other end of the workpiece, and the position of the workpiece is fixed in cooperation with the sleeve. As the interference rod moves, the connecting plate, the round rod and the scraper are driven to move, so that the debris is pushed into the discharge port for discharge;

[0023] S103: The first motor is used to drive the sleeve and the workpiece to rotate, and the third motor is used to drive the reciprocating screw to rotate, thereby controlling the movement of the cutter head, and then cutting the workpiece;

[0024] S104: When the workpiece is cut, the driving member controls the lateral adjustment frame to move upward, thereby causing the cutter head to separate from the workpiece. The lateral adjustment frame drives the second tooth plate to move and causes the second gear nut to rotate, thereby causing the resistance rod to move and separate from the workpiece, thereby causing the workpiece to lose its limit position, and then the workpiece is replaced;

[0025] S105: When the lateral adjustment frame is reset, the reciprocating screw is driven to rotate by the third motor, thereby causing the movable block to move toward the first tooth plate, thereby driving the first gear nut to rotate through the first tooth plate, and causing the positioning rod to move and separate from the cutter head, thereby causing the cutter head to lose its limit, thereby facilitating the replacement of the cutter head.

[0026] In summary, the present invention includes at least one of the following beneficial effects:

[0027] When the lateral adjustment frame is reset, the movable block is controlled by the lateral adjustment frame to move toward the first tooth plate, thereby driving the first gear nut to rotate through the first tooth plate, and causing the positioning rod to move and separate from the cutter head, thereby causing the cutter head to lose its limit position, thereby facilitating the replacement of the cutter head;

[0028] The second tooth plate is driven downward by the lateral adjustment frame, thereby driving the second gear nut to rotate through the second tooth plate. As the second gear nut rotates, the interference rod moves and interferes with the other end of the workpiece, and cooperates with the sleeve to fix the position of the workpiece, so it is more convenient to fix the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 It is a partial three-dimensional structural cross-sectional view of the present invention;

[0031] Figure 3 It is a partial three-dimensional expanded structural cross-sectional view of the present invention.

[0032] In the figure: 1. frame; 2. vertical slot; 21. guide rod; 3. horizontal adjustment frame; 31. third motor; 32. reciprocating screw; 4. driving member; 41. second motor; 42. first screw; 5. movable block; 51. internal threaded hole; 52. movable slot; 6. cutter head; 7. first gear nut; 8. positioning rod; 81. U-shaped rod; 82. second screw; 9. first motor; 10. sleeve; 11. second gear nut; 12. resistance rod; 121. turntable; 122. connecting plate; 123. round rod; 124. scraper; 13. second tooth plate; 14. first tooth plate; 16. discharge port. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 3 The present invention is described in further detail.

[0034] Please refer to the attached figure in the instruction manual Figure 1-Figure 3 An embodiment of the present invention is a screw cutting processing device, comprising a frame 1, two vertical slots 2 are symmetrically provided on the inner side of the frame 1, and a lateral adjustment frame 3 is movably provided on the inner walls of the two vertical slots 2, a driving member 4 is provided in one of the vertical slots 2, and a guide rod 21 is fixedly provided on the inner wall of the vertical slot 2, and one end of the lateral adjustment frame 3 away from the driving member 4 is inserted into the vertical slot 2 and movably sleeved on the guide rod 21, and the guide rod 21 is used to limit the movement of the lateral adjustment frame 3 away from the driving member 4, thereby facilitating the increase of the stability of the lateral adjustment frame 3 when it moves up and down.

[0035] One end of the lateral adjustment frame 3 inserted into the vertical slot 2 is threadedly sleeved on the driving member 4, and the driving member 4 includes a second motor 41 and a first screw 42. The first screw 42 is rotatably set in the vertical slot 2, and the second motor 41 is fixedly set on the top of the frame 1. The rotating shaft of the second motor 41 is fixedly connected to the upper end of the first screw 42. The second motor 41 is used to drive the first screw 42 to rotate. As the first screw 42 rotates, the lateral adjustment frame 3 moves along the inner wall of the vertical slot 2, thereby adjusting the height of the lateral adjustment frame 3.

[0036] A movable block 5 is provided in the transverse adjustment frame 3, and a cutter head 6 is clamped on the side wall of the movable block 5. The cutter head 6 is movably installed in the movable block 5. A third motor 31 is fixedly provided on the inner wall of the transverse adjustment frame 3, and a reciprocating screw rod 32 is fixedly provided on the rotating shaft of the third motor 31. The end of the reciprocating screw rod 32 away from the third motor 31 is rotatably connected to the inner wall of the transverse adjustment frame 3. The reciprocating screw rod 32 is driven to rotate by the third motor 31. As the reciprocating screw rod 32 rotates, the movable block 5 drives the cutter head 6 to move along the inner wall of the transverse adjustment frame 3, thereby adjusting the position of the cutter head 6.

[0037] A first gear nut 7 is rotatably provided on the side wall of the movable block 5, a positioning rod 8 is movably provided inside the movable block 5, one end of the positioning rod 8 is movably plugged with the cutter head 6, an internal threaded hole 51 adapted to the reciprocating screw 32 is provided on the movable block 5, a movable groove 52 is provided in the movable block 5, the positioning rod 8 is movably provided in the movable groove 52, the movable block 5 is threadedly sleeved on the reciprocating screw 32, as the reciprocating screw 32 rotates, the movable block 5 drives the cutter head 6 to move along the axial direction of the reciprocating screw 32, and the positioning rod 8 is conveniently assembled through the movable groove 52.

[0038] The other end of the positioning rod 8 extends out of the movable block 5 and is threadedly inserted in the first gear nut 7. A first tooth plate 14 corresponding to the first gear nut 7 is fixedly provided on the inner side wall of the frame 1. The first tooth plate 14 is meshed with the first gear nut 7. The positioning rod 8 includes a U-shaped rod 81 and a second screw rod 82. One end of the second screw rod 82 extends out of the movable block 5 and is threadedly inserted with the first gear nut 7. The other end of the second screw rod 82 is fixedly connected to the U-shaped rod 81. The end of the U-shaped rod 81 away from the second screw 82 is movably inserted with the cutter head 6. The reciprocating screw rod 32 is driven to rotate by the third motor 31, thereby prompting the movable block 5 to move toward the first tooth plate 14, thereby driving the first gear nut 7 to rotate through the first tooth plate 14, and prompting the second screw 82 to drive the U-shaped rod 81 to move and separate from the cutter head 6, thereby causing the cutter head 6 to lose its limit, thereby facilitating the replacement of the cutter head 6.

[0039] A first motor 9 is arranged on one side of the inner wall of the frame 1, and a sleeve 10 is fixedly arranged on the rotating shaft of the first motor 9. A second gear nut 11 is rotatably arranged on the other side of the inner wall of the frame 1. A resisting rod 12 is inserted into the inner thread of the second gear nut 11. The axis of the resisting rod 12 is coaxial with the axis of the sleeve 10. One end of the resisting rod 12 passes through the second gear nut 11 and is rotatably arranged with a turntable 121. The outer wall of the resisting rod 12 is provided with an external thread corresponding to the second gear nut 11, and the other end of the resisting rod 12 is fixedly provided with a connecting plate 122, a round rod 123 is fixedly provided at the lower end of the connecting plate 122, and one end of the round rod 123 away from the connecting plate 122 passes through the frame 1 and is fixedly provided with a scraper 124. The inner bottom wall of the frame 1 is symmetrically provided with two discharge ports 16. When the interference rod 12 moves, the turntable 121 contacts the workpiece, so that the first motor 9 can drive the sleeve 10 and the workpiece to rotate. When the interference rod 12 moves, it is easy to drive the connecting plate 122, the round rod 123 and the scraper 124 to move, thereby pushing the debris to the discharge port 16 for discharge.

[0040] A second tooth plate 13 is fixedly provided on the side wall of the transverse adjustment frame 3, and the second tooth plate 13 is meshed with the second gear nut 11. The second tooth plate 13 is driven downward by the transverse adjustment frame 3, and the second gear nut 11 is driven to rotate by the second tooth plate 13. As the second gear nut 11 rotates, the interference rod 12 is prompted to move and interfere with the other end of the workpiece, and cooperates with the sleeve 10 to fix the position of the workpiece.

[0041] In summary: first, one end of the workpiece is inserted into the sleeve 10, and then the driving member 4 is started to control the lateral adjustment frame 3 to move downward, so that the cutter head 6 is caused to contact the workpiece, and the second tooth plate 13 is driven downward by the lateral adjustment frame 3, so that the second gear nut 11 is driven to rotate by the second tooth plate 13, and as the second gear nut 11 rotates, the interference rod 12 is caused to move and contact with the other end of the workpiece, and the sleeve 10 is cooperated to fix the position of the workpiece;

[0042] The first motor 9 is used to drive the sleeve 10 and the workpiece to rotate, and the lateral adjustment frame 3 is used to control the movement of the cutter head 6, thereby cutting the workpiece;

[0043] When the workpiece is cut, the driving member 4 controls the lateral adjustment frame 3 to move upward, thereby causing the cutter head 6 to separate from the workpiece. As the lateral adjustment frame 3 drives the second tooth plate 13 to move and causes the second gear nut 11 to rotate, the abutment rod 12 is moved and separated from the workpiece, thereby causing the workpiece to lose its limit position and then be replaced.

[0044] When the lateral adjustment frame 3 is reset, the movable block 5 is controlled by the lateral adjustment frame 3 to move toward the first tooth plate 14, thereby driving the first gear nut 7 to rotate through the first tooth plate 14, and prompting the positioning rod 8 to move and separate from the cutter head 6, thereby causing the cutter head 6 to lose its limit, thereby facilitating the replacement of the cutter head 6.

[0045] In order to better demonstrate a screw cutting processing device, this embodiment now proposes a screw cutting processing device and a processing technology, including the following steps:

[0046] Step 1: First, insert one end of the workpiece into the sleeve 10, and then start the driving member 4 to control the lateral adjustment frame 3 to move downward, so as to cause the cutter head 6 to contact the workpiece;

[0047] Step 2: The second tooth plate 13 is driven downward by the lateral adjustment frame 3, so that the second gear nut 11 is driven to rotate by the second tooth plate 13. As the second gear nut 11 rotates, the abutment rod 12 is moved and abuts against the other end of the workpiece, and the sleeve 10 is cooperated to fix the position of the workpiece. As the abutment rod 12 moves, the connecting plate 122, the round rod 123 and the scraper 124 are driven to move, so that the debris is pushed into the discharge port 16 for discharge;

[0048] Step 3: The first motor 9 is used to drive the sleeve 10 and the workpiece to rotate, and the third motor 31 is used to drive the reciprocating screw 32 to rotate, thereby controlling the movement of the cutter head 6 to cut the workpiece;

[0049] Step 4: After the workpiece is cut, the driving member 4 controls the lateral adjustment frame 3 to move upward, thereby causing the cutter head 6 to separate from the workpiece. As the lateral adjustment frame 3 drives the second tooth plate 13 to move and causes the second gear nut 11 to rotate, the abutment rod 12 is moved and separated from the workpiece, thereby causing the workpiece to lose its limit position, and then the workpiece is replaced;

[0050] Step 5: When the lateral adjustment frame 3 is reset, the reciprocating screw 32 is driven to rotate by the third motor 31, thereby prompting the movable block 5 to move toward the first tooth plate 14, thereby driving the first gear nut 7 to rotate through the first tooth plate 14, and prompting the positioning rod 8 to move and separate from the cutter head 6, thereby causing the cutter head 6 to lose its limit, thereby facilitating the replacement of the cutter head 6.

[0051] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw cutting device, comprising a frame (1), characterized in that: Two vertical slots (2) are symmetrically provided on the inner side of the frame (1), and the inner walls of the two vertical slots (2) are movably provided with transverse adjustment frames (3), one of the vertical slots (2) is provided with a driving member (4), one end of the transverse adjustment frame (3) inserted into the vertical slot (2) is threadedly sleeved on the driving member (4), a movable block (5) is provided in the transverse adjustment frame (3), a cutter head (6) is clamped on the side wall of the movable block (5), a first gear nut (7) is rotatably provided on the side wall of the movable block (5), a positioning rod (8) is movably provided in the movable block (5), one end of the positioning rod (8) is movably plugged into the cutter head (6), and the other end of the positioning rod (8) extends out of the movable block (5) and is threadedly plugged into the first gear nut (7). Inside the nut (7), a first tooth plate (14) corresponding to the first gear nut (7) is fixedly arranged on the inner side wall of the frame (1), and the first tooth plate (14) meshes with the first gear nut (7). A first motor (9) is arranged on one side of the inner wall of the frame (1), and a sleeve (10) is fixedly arranged on the rotating shaft of the first motor (9). A second gear nut (11) is rotatably arranged on the other side of the inner wall of the frame (1), and a resisting rod (12) is inserted into the inner thread of the second gear nut (11), and the axis of the resisting rod (12) is coaxial with the axis of the sleeve (10). A second tooth plate (13) is fixedly arranged on the side wall of the lateral adjustment frame (3), and the second tooth plate (13) meshes with the second gear nut (11).

2. The screw cutting device according to claim 1, characterized in that: A guide rod (21) is fixedly arranged on the inner wall of the vertical groove (2); one end of the lateral adjustment frame (3) away from the driving member (4) is inserted into the vertical groove (2) and movably sleeved on the guide rod (21).

3. The screw cutting device according to claim 1, characterized in that: The driving member (4) comprises a second motor (41) and a first screw rod (42); the first screw rod (42) is rotatably arranged in the vertical slot (2); the second motor (41) is fixedly arranged on the top of the frame (1); and the rotating shaft of the second motor (41) is fixedly connected to the upper end of the first screw rod (42).

4. The screw cutting device according to claim 1, characterized in that: A third motor (31) is fixedly arranged on the inner wall of the transverse adjustment frame (3), a reciprocating screw rod (32) is fixedly arranged on the rotating shaft of the third motor (31), and one end of the reciprocating screw rod (32) away from the third motor (31) is rotatably connected to the inner wall of the transverse adjustment frame (3).

5. The screw cutting device according to claim 4, characterized in that: The movable block (5) is provided with an internal threaded hole (51) adapted to the reciprocating screw rod (32), the movable block (5) is provided with a movable groove (52), and the positioning rod (8) is movably arranged in the movable groove (52).

6. The screw cutting device according to claim 1, characterized in that: The positioning rod (8) comprises a U-shaped rod (81) and a second screw rod (82); one end of the second screw rod (82) extends out of the movable block (5) and is threadedly plugged into the first gear nut (7); the other end of the second screw rod (82) is fixedly connected to the U-shaped rod (81); and one end of the U-shaped rod (81) away from the second screw rod (82) is movably plugged into the cutter head (6).

7. The screw cutting device according to claim 1, characterized in that: One end of the resistance rod (12) passes through the second gear nut (11) and is rotatably provided with a turntable (121); an outer wall of the resistance rod (12) is provided with an external thread corresponding to the second gear nut (11); a connecting plate (122) is fixedly provided at the other end of the resistance rod (12); a round rod (123) is fixedly provided at the lower end of the connecting plate (122); an end of the round rod (123) away from the connecting plate (122) passes through the frame (1) and is fixedly provided with a scraper (124); and two discharge openings (16) are symmetrically provided on the inner bottom wall of the frame (1).

8. A processing technology of a screw cutting device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S101: First, one end of the workpiece is inserted into the sleeve (10), and then the driving member (4) is started to control the lateral adjustment frame (3) to move downward, thereby causing the cutter head (6) to contact the workpiece; S102: The second tooth plate (13) is driven to move downward by the lateral adjustment frame (3), thereby driving the second gear nut (11) to rotate through the second tooth plate (13). As the second gear nut (11) rotates, the abutment rod (12) is moved and abuts against the other end of the workpiece, and the position of the workpiece is fixed in cooperation with the sleeve (10). As the abutment rod (12) moves, the connecting plate (122), the round rod (123) and the scraper (124) are driven to move, thereby pushing the debris into the discharge port (16) for discharge; S103: The first motor (9) is used to drive the sleeve (10) and the workpiece to rotate, and the third motor (31) is used to drive the reciprocating screw rod (32) to rotate, thereby controlling the movement of the cutter head (6) and further performing cutting processing on the workpiece; S104: When the workpiece is cut, the driving member (4) controls the lateral adjustment frame (3) to move upward, thereby causing the cutter head (6) to separate from the workpiece. As the lateral adjustment frame (3) drives the second tooth plate (13) to move and causes the second gear nut (11) to rotate, the abutment rod (12) is caused to move and separate from the workpiece, thereby causing the workpiece to lose its limit position, and the workpiece is then replaced. S105: When the lateral adjustment frame (3) is reset, the reciprocating screw rod (32) is driven to rotate by the third motor (31), thereby causing the movable block (5) to move toward the first tooth plate (14), thereby driving the first gear nut (7) to rotate through the first tooth plate (14), and causing the positioning rod (8) to move and separate from the cutter head (6), thereby causing the cutter head (6) to lose its limit position, thereby facilitating the replacement of the cutter head (6).

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