Efficient die steel cutting device

Abstract

The utility model discloses an efficient die steel cutting device which comprises a cutting table body and a laser cutting machine head body, and a limiting assembly capable of longitudinally pushing a die steel plate in a reciprocating mode is installed on the rear portion of the top face of the cutting table body. A kerf is formed in the front portion of the top face of the cutting table body in the transverse direction, and the kerf is a through groove in the vertical direction. The laser cutting machine head has the advantages that the laser cutting machine head body is driven to transversely move in the mode that the screw rod rotates to drive the nut to transversely move so as to cut die steel below the laser cutting machine head body, and the cutting operation on the die steel is simple and easy to achieve; and meanwhile, by means of the mode that the switch base is matched with the proximity switches on the two sides, the limit stroke of the laser cutting machine head body moving towards the two sides can be restrained, then the cutting moving stroke of the laser cutting machine head body is controlled, and the cutting operation of the die steel can be smoothly completed.

Description

Technical Field

[0001] The utility model relates to the field of die steel cutting auxiliary components, in particular to a high-efficiency die steel cutting device. Background Art

[0002] Mold steel is the material used to make molds and is the most widely used material among mold materials. During the mold steel production process, the mold steel needs to be cut into corresponding sizes according to the required length. Laser cutting is one of the commonly used cutting methods for cutting mold steel. Laser cutting uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to quickly melt, vaporize, ablate or reach the ignition point. At the same time, the molten material is blown away by a high-speed airflow coaxial with the beam, thereby achieving the cutting of the workpiece. Laser cutting is one of the thermal cutting methods, but the current laser cutting equipment is usually designed in a specific way. It usually cuts the mold steel by driving the laser cutting head through a lead screw nut pair. During the cutting process, the movement stroke of the laser cutting head is achieved by cooperating with the switch seat and the proximity switch. This results in that when the proximity switch and the switch seat fail to cooperate, due to the lack of necessary and reliable safety protection measures, the lead screw nut pair driving the laser cutting head to move to the end position of the stroke will continue to drive the laser cutting head to hit the frame and cause damage. Utility Model Content

[0003] The purpose of the present utility model is to provide an efficient mold steel cutting device in order to solve the above problems. The laser cutting head body is driven to move laterally by the rotation of the screw to drive the nut to move laterally to cut the mold steel below. The cutting operation of the mold steel is simple and easy to implement. At the same time, the switch seat and the proximity switches on both sides are respectively coordinated to constrain the extreme travel of the laser cutting head body to the two side positions, and then the cutting movement travel of the laser cutting head body is controlled. See the following for details.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The utility model provides an efficient mold steel cutting device, which includes a cutting table body and a laser cutting head body. A limiting component capable of longitudinally reciprocating the mold steel plate is installed on the rear portion of the top surface of the cutting table body.

[0006] A slit is formed in the transverse direction on the top front portion of the cutting table body, and the slit is a through groove in the vertical direction. A gantry is installed between the two sides of the slit on the cutting table body, and a drive assembly is installed between the tops of the gantry in the transverse direction. The laser cutting head body is vertically fixed to the bottom end of the middle part of the drive assembly, and the laser cutting head body is vertically aligned with the slit, so that the drive assembly drives the laser cutting head body to move back and forth along the corresponding slit below to cut the mold steel plate.

[0007] Safety protection components are installed in the middle of both sides of the gantry to prevent the laser cutting head body from moving laterally and contacting the side of the gantry, and the safety protection components are flush with the middle of the laser cutting head body.

[0008] Preferably, a frame for supporting the cutting table is installed on the bottom surface of the cutting table body.

[0009] Preferably, the limiting assembly includes a cylinder body and a limiting baffle, the cylinder body is longitudinally fixed to the rear of the top surface of the cutting table body through the front cylinder seat, the push rod at the front of the cylinder body passes through the cylinder seat in a longitudinal sliding fit and the limiting baffle is vertically fixed to the front end along the horizontal direction.

[0010] Preferably, the limit baffle is a rectangular long strip with a transverse width not greater than the slit, and the bottom surface of the limit baffle is close to but not in contact with the top surface of the cutting table body.

[0011] Preferably, the driving assembly includes a driving motor and a screw rod, the driving motor is fixed laterally on the top of one side of the gantry, the motor shaft of the driving motor passes through the side of the gantry in a transverse sliding fit and the end is coaxially fixed with the screw rod through a coupling, a bearing seat 1 is fixed to the inner wall of the other side of the gantry, and the other end of the screw rod is coaxially fixed to the inner ring of the bearing built into the bearing seat 1, a guide column is fixed laterally between the two sides of the gantry at a position below the screw rod, a nut is coaxially engaged with the middle part of the screw rod, a slide is vertically extended and fixed to the bottom surface of the nut, and the guide column passes through the slide in a transverse sliding fit, and the bottom surface of the slide is vertically fixed to the laser cutting machine head body through a fixing sleeve.

[0012] Preferably, the fixing sleeve is welded and fixed to the bottom surface of the slide seat, and the fixing sleeve is combined and connected with the laser cutting head body by threaded fitting.

[0013] Preferably, a switch seat is fixed in front of the slide along the longitudinal vertical extension, and proximity switches are fixed on the inner walls on both sides of the gantry in front of the guide column. The proximity switches are electrically connected to the drive motor and are horizontally aligned with the switch seat.

[0014] Preferably, the safety protection components include studs and safety seats, the studs are interspersed with the middle parts of both sides of the gantry in a transverse meshing manner, and the ends of the studs at both sides that are close to each other are coaxially connected to the bearing seat 2, the end surfaces of the bearing seat 2 at both sides that are opposite to each other are vertically fixed with the safety seats in the longitudinal direction, and the safety seats at both sides are flush with the middle part of the laser cutting machine head body, and the studs at both sides that are away from each other and extend outward from the outside of the gantry are coaxially engaged with locking nuts.

[0015] Preferably, hand wheels are coaxially fixed to the outer ends of the studs on both sides, and the end faces of the safety seats on both sides facing each other are vertically provided with matching grooves whose inner contours fit closely with the outer contours of the laser cutting machine head body, and the matching grooves are coaxially covered with a buffer lining made of buffer material.

[0016] Preferably, the gantry is provided with guide holes in the transverse direction at the front and rear positions corresponding to the studs, the guide blocks are inserted with guide rods in a coaxial sliding fit, and the ends of the guide rods at both sides that are close to each other are fixedly connected to the corresponding safety seats.

[0017] The above-mentioned efficient mold steel cutting device is used. Specifically, during the process of cutting the mold steel plate, the mold steel plate is placed flat on the top surface of the cutting table body and the front edge is against the front of the limit baffle. Then, the cylinder body is connected to the external air supply pipeline for operation. The push rod of the cylinder body drives the limit push plate to move longitudinally, which can push the mold steel to adjust the cutting position, thereby facilitating the laser cutting head body to cut mold steel plates of different sizes. When the mold steel plate is adjusted to the cutting position consistent with the direction of the cutting seam, it means that the adjustment is in place. At this time, the cylinder body is suspended, and then the drive motor and the laser cutting head body are respectively connected to the external power supply. The cables are electrically connected to work, and the driving motor drives the screw to rotate through the motor shaft, and the rotation of the screw drives the nut to move horizontally, which can drive the laser cutting head body to move horizontally to cut the mold steel below. The cutting operation of the mold steel is simple and easy to implement. At the same time, the switch seat and the proximity switches at the two side positions are respectively coordinated to constrain the limit travel of the laser cutting head body to the two side positions, and then the cutting movement travel of the laser cutting head body is controlled, which is conducive to the smooth completion of the cutting operation of the mold steel. In actual operation, the switch seat will move horizontally together with the horizontal movement of the laser cutting head body, and then when When the switch seat moves laterally with the laser cutting head body to cooperate with the proximity switch on the corresponding side to trigger, the proximity switch will cause the motor shaft of the drive motor to reverse and drive the laser cutting head body to move laterally in the opposite direction. When the laser cutting head body drives the switch seat to move laterally in the opposite direction to cooperate with the proximity switch on the other side to trigger, the proximity switch on the other side stops the drive motor, thereby completing the cutting and segmenting operation of the laser cutting head body on the mold steel below. Since the safety seat can be adjusted to maintain a certain distance from the inner side of the gantry by rotating the stud and locked by tightening the locking nut, when the proximity switch fails When a fault occurs and the switch seat and the proximity switch fail to cooperate, the laser cutting head body can be prevented from continuing to move and hitting the inner wall of the gantry and being damaged by the direct fit of the laser cutting head body in the cooperation groove of the safety seat, thereby achieving a safety protection effect for the laser cutting head body. It should be noted that during the cutting operation of the laser cutting head body, a specialized personnel should be on duty so that when a fault occurs in the proximity switch and the switch seat and the proximity switch fail to cooperate, when the laser cutting head body is limited by the safety seat, the on-duty personnel can promptly discover and cut off the power supply for inspection and maintenance to prevent the fault from further deteriorating.

[0018] The beneficial effects are as follows: 1. The utility model drives the laser cutting head body to move laterally by rotating the screw to drive the nut to move laterally to perform a cutting operation on the mold steel below. The cutting operation of the mold steel is simple and easy to implement. At the same time, the switch seat and the proximity switches at the two sides are respectively coordinated to constrain the limit travel of the laser cutting head body to the two sides, thereby controlling the cutting travel of the laser cutting head body, which is conducive to the smooth completion of the cutting operation of the mold steel.

[0019] 2. The push rod of the cylinder body drives the limit push plate to move longitudinally, which can push the mold steel to adjust the cutting position, thereby facilitating the laser cutting head body to cut mold steel plates of different sizes, thereby improving the flexibility of the cutting process;

[0020] 3. The safety seat can be adjusted to maintain a certain distance from the inside of the gantry by rotating the stud and locked by tightening the locking nut. When the proximity switch fails and the switch seat and the proximity switch fail to cooperate, the laser cutting head body can be directly fitted into the matching groove of the safety seat to prevent the laser cutting head body from continuing to move and hitting the gantry and being damaged, thereby achieving a safety protection effect for the laser cutting head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is the overall axonometric diagram of the utility model Figure 1 ;

[0023] Figure 2 This is the overall axonometric diagram of the utility model Figure 2 ;

[0024] Figure 3 This utility model Figure 1 Cross-section diagram of Figure 1 ;

[0025] Figure 4 This utility model Figure 3 A local enlarged view of point A;

[0026] Figure 5 This utility model Figure 1 Cross-section diagram of Figure 2 ;

[0027] Figure 6 This utility model Figure 5 A partial enlarged view of point B;

[0028] Figure 7 This utility model Figure 1 The front external view of

[0029] Figure 8 This utility model Figure 1 Dorsal external view of ;

[0030] Figure 9 This utility model Figure 1 The left external view of

[0031] Figure 10 This utility model Figure 1 Top view of the exterior.

[0032] The following are the descriptions of the reference numerals:

[0033] 1. Limit assembly; 101. Limit baffle; 102. Cylinder body; 103. Cylinder seat; 104. Push rod; 2. Cutting table body; 201. Frame; 202. Cutting slit; 3. Gantry; 4. Safety protection assembly; 401. Handwheel; 402. Guide rod; 403. Stud; 404. Safety seat; 405. Matching groove; 406. Buffer lining; 407. Guide hole; 408. Locking nut; 409. Bearing seat 2; 5. Drive assembly; 501. Drive motor; 502. Motor shaft; 503. Screw; 504. Nut; 505. Guide column; 506. Slide seat; 507. Switch seat; 508. Fixing sleeve; 509. Proximity switch; 5010. Bearing seat 1; 6. Laser cutting head body. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-10As shown, the utility model provides an efficient mold steel cutting device, including a cutting table body 2 and a laser cutting head body 6. A limit assembly 1 capable of longitudinally reciprocating the mold steel plate is installed on the rear part of the top surface of the cutting table body 2. Specifically, the limit assembly 1 includes a cylinder body 102 and a limit baffle 101. The cylinder body 102 is longitudinally fixed to the rear part of the top surface of the cutting table body 2 through the cylinder seat 103 at the front. The push rod 104 at the front of the cylinder body 102 passes through the cylinder seat 103 in a longitudinal sliding fit and the front end is vertically fixed to the limit baffle 101 in the horizontal direction. Such an arrangement makes it easy to push the mold steel to adjust the cutting position by driving the limit push plate longitudinally through the push rod 104 of the cylinder body 102, thereby facilitating the laser cutting head body 6 to cut mold steel plates of different sizes.

[0036] See also Figures 1-6 As shown, a slit 202 is opened in the horizontal direction on the top front portion of the cutting table body 2, and the slit 202 is a through groove in the vertical direction. A gantry 3 is installed between the two sides of the slit 202 of the cutting table body 2, and a drive component 5 is installed in the horizontal direction between the top of the gantry 3. A laser cutting head body 6 is vertically fixed to the bottom end of the middle part of the drive component 5, and the laser cutting head body 6 is vertically aligned with the slit 202, so as to drive the laser cutting head body 6 to move back and forth along the corresponding slit 202 below through the drive component 5 to cut the mold steel plate. Specifically, the drive component 5 includes a drive motor 501 and a screw rod 503. A drive motor 501 is fixed in the horizontal direction on the top of one side of the gantry 3, and the motor shaft 502 of the drive motor 501 passes through the gantry in a horizontal sliding manner. 3 side and the end thereof are coaxially fixed with a screw rod 503 through a coupling, a bearing seat 5010 is fixed to the inner wall of the other side of the gantry 3, and the other end of the screw rod 503 is coaxially fixed to the inner ring of the bearing built into the bearing seat 5010, and a guide column 505 is fixed laterally between the two sides of the gantry 3 below the screw rod 503, and a nut 504 is coaxially engaged with the middle part of the screw rod 503, and a slide 506 is fixed vertically on the bottom surface of the nut 504, and the guide column 505 passes through the slide 506 in a transverse sliding fit, and the bottom surface of the slide 506 is vertically fixed with the laser cutting machine head body 6 through the fixed sleeve 508. Such an arrangement makes it easy to drive the laser cutting machine head body 6 to move laterally by rotating the screw rod 503 to drive the nut 504 to move laterally to perform a cutting operation on the mold steel below.

[0037] See also Figures 1-6As shown, the middle part of both sides of the gantry 3 is equipped with a safety protection component 4 to prevent the laser cutting head body 6 from moving laterally and contacting the side of the gantry 3, and the safety protection component 4 is flush with the middle part of the laser cutting head body 6. Specifically, the safety protection component 4 includes a stud 403 and a safety seat 404. The middle part of both sides of the gantry 3 is interspersed with studs 403 in the transverse engagement, and the ends of the studs 403 at the two side positions close to each other are coaxially connected to the bearing seat 2 409, and the end faces of the bearing seat 2 409 at the two side positions relative to each other are fixed with safety seats 404 vertically along the longitudinal direction, and the safety seats 404 at the two side positions They are all flush with the middle of the laser cutting head body 6, and the studs 403 on both sides are far away from each other and the parts extending outward from the gantry 3 are coaxially engaged with locking nuts 408. This arrangement makes it easy to adjust the safety seat 404 laterally to maintain a certain distance from the inner side of the gantry 3 by rotating the studs 403 and lock it by tightening the locking nuts 408. Then, when the proximity switch 509 fails and causes the switch seat 507 and the proximity switch 509 to fail to cooperate, the laser cutting head body 6 can be prevented from continuing to move and hitting the gantry 3 and being damaged by directly contacting the safety seat 404.

[0038] See also Figures 1-6 As shown, as the preferred solution of this case, a frame 201 for raising and supporting is installed on the bottom surface of the cutting table body 2. This arrangement facilitates the stable raising and supporting of the cutting table body 2 by the frame 201. The limit baffle 101 is a rectangular long strip with a transverse width not greater than the slit 202. The bottom surface of the limit baffle 101 is close to the top surface of the cutting table body 2 but does not touch it. Preferably, the transverse width of the mold steel plate to be cut should be between the length of the slit 101. This arrangement facilitates the limit baffle 101 to have a sufficiently wide transverse width to allow the mold steel plate to resist the limit, and the slit 101 has a suitable length to be able to cut and cut the mold steel plate.

[0039] At the same time, the fixing sleeve 508 is welded and fixed to the bottom surface of the slide 506, and the fixing sleeve 508 is combined and connected with the laser cutting head body 6 by means of threaded cooperation. Preferably, the axis of the laser cutting head body 6 is arranged vertically. Such arrangement facilitates the laser cutting head body 6 to be quickly combined and disassembled with the fixing sleeve 508 and the slide 506. A switch seat 507 is fixed to the front of the slide 506 along the longitudinal vertical extension. Proximity switches 509 are fixed to the inner walls of both sides of the gantry 3 in front of the guide column 505. The proximity switches 509 are electrically connected to the drive motor 501, and the proximity switches 509 are horizontally aligned with the switch seat 507. Such arrangement facilitates the limit travel of the laser cutting head body 6 to the two side positions by respectively cooperating with the switch seat 507 and the proximity switches 509 on both sides, thereby controlling the cutting movement travel of the laser cutting head body 6.

[0040] The outer ends of the studs 403 at both sides are coaxially fixed with hand wheels 401, so that the studs 403 can be rotated by applying force with the hand wheels 401. The end faces of the safety seats 404 at both sides are vertically provided with matching grooves 405 whose inner contours fit the outer contours of the laser cutting head body 6, and the matching grooves 405 are coaxially covered with buffer linings 406 of buffer material. This arrangement makes it easier for the laser cutting head body 6 to be able to cut the laser cutting head body 6 by fitting the buffer linings 406 of the matching grooves 405. To provide a certain buffer protection, the gantry 3 is provided with guide holes 407 in the horizontal direction at the front and rear positions corresponding to the studs 403, and the guide blocks are inserted with guide rods 402 in a coaxial sliding fit manner, and the ends of the guide rods 402 at both sides are close to each other and fixedly connected to the corresponding safety seats 404. This arrangement makes it easy to guide and correct the lateral movement of the safety seat 404 by sliding the guide rods 402 along the guide holes 407 during the process of screwing the studs 403 to drive the safety seat 404 to move laterally, thereby preventing the safety seat 404 from being dislocated as the studs 403 rotate.

[0041] With the above structure, specifically in the process of cutting the mold steel plate, the mold steel plate is placed flat on the top surface of the cutting table body 2 and the front edge is against the front of the limit baffle 101, and then the cylinder body 102 is connected to the external air supply pipeline for operation. The push rod 104 of the cylinder body 102 drives the limit push plate to move longitudinally, so that the mold steel can be pushed to adjust the cutting position, thereby facilitating the laser cutting head body 6 to cut mold steel plates of different sizes. When the mold steel plate is adjusted to the cutting position consistent with the direction of the cutting seam 202, it means that the adjustment is in place. At this time, the cylinder body 102 is suspended, and then the drive motor 501 and the laser cutting head body 6 are energized by being electrically connected to the external power supply cable. To work, the driving motor 501 drives the screw rod 503 to rotate through the motor shaft 502, and the screw rod 503 rotates to drive the nut 504 to move horizontally, which can drive the laser cutting head body 6 to move horizontally to cut the mold steel below. The cutting operation of the mold steel is simple and easy to implement. At the same time, the switch seat 507 is respectively coordinated with the proximity switches 509 at the two side positions to constrain the limit travel of the laser cutting head body 6 to the two side positions, and then the cutting movement travel of the laser cutting head body 6 is controlled, which is conducive to the smooth completion of the cutting operation of the mold steel. In actual operation, the switch seat 507 will move horizontally with the horizontal movement of the laser cutting head body 6, and then when the switch seat 507 moves horizontally When the laser cutting head body 6 moves horizontally to cooperate with the proximity switch 509 on the corresponding side to trigger, the proximity switch 509 will reverse the motor shaft 502 of the drive motor 501 and drive the laser cutting head body 6 to move horizontally in the opposite direction. When the laser cutting head body 6 drives the switch seat 507 to move horizontally in the opposite direction to cooperate with the proximity switch 509 on the other side to trigger, the proximity switch 509 on the other side stops the drive motor 501, thereby completing the laser cutting head body 6 to cut the mold steel below. Since the safety seat 404 can be adjusted to maintain a certain distance from the inner side of the gantry 3 by rotating the stud 403 and locked by tightening the locking nut 408, when the proximity switch 509 fails, When a fault occurs and the switch seat 507 and the proximity switch 509 fail to cooperate, the laser cutting head body 6 can be prevented from continuing to move and hitting the inner wall of the gantry 3 and being damaged by directly contacting the matching groove 405 of the safety seat 404, thereby achieving a safety protection effect for the laser cutting head body 6. It should be noted that during the cutting operation of the laser cutting head body 6, a specialized personnel should be on duty so that when the proximity switch 509 fails and the switch seat 507 and the proximity switch 509 fail to cooperate, when the laser cutting head body 6 is limited by the safety seat 404, the on-duty personnel can promptly discover and promptly cut off the power supply for inspection and maintenance to prevent the fault from further deteriorating.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An efficient mold steel cutting device, comprising a cutting table body (2) and a laser cutting head body (6), characterized in that: A limiting assembly (1) capable of longitudinally reciprocating the mold steel plate is installed on the rear portion of the top surface of the cutting table body (2); A slit (202) is provided on the front of the cutting table body (2) in the horizontal direction, and the slit (202) is a through groove in the vertical direction. A gantry (3) is installed between the two sides of the slit (202) of the cutting table body (2), and a drive assembly (5) is installed between the top of the gantry (3) in the horizontal direction. The laser cutting machine head body (6) is vertically fixed to the bottom end of the middle part of the drive assembly (5), and the laser cutting machine head body (6) is vertically aligned with the slit (202), so as to drive the laser cutting machine head body (6) to move back and forth along the corresponding slit (202) below through the drive assembly (5) to cut the mold steel plate; Safety protection components (4) are installed in the middle of both sides of the gantry (3) to prevent the laser cutting machine head body (6) from moving laterally and contacting the side of the gantry (3), and the safety protection components (4) are flush with the middle of the laser cutting machine head body (6).

2. The efficient mold steel cutting device according to claim 1, characterized in that: The bottom surface of the cutting table body (2) is provided with a frame (201) for supporting the elevation.

3. An efficient mold steel cutting device according to claim 1 or 2, characterized in that: The limiting assembly (1) comprises a cylinder body (102) and a limiting baffle (101); the cylinder body (102) is longitudinally fixed to the rear of the top surface of the cutting table body (2) via a cylinder seat (103) at the front; a push rod (104) at the front of the cylinder body (102) passes through the cylinder seat (103) in a longitudinal sliding fit manner, and the limiting baffle (101) is vertically fixed to the front end in a transverse direction.

4. The efficient mold steel cutting device according to claim 3, characterized in that: The limiting baffle (101) is a rectangular long strip with a transverse width no greater than the slit (202), and the bottom surface of the limiting baffle (101) is close to but not in contact with the top surface of the cutting table body (2).

5. The efficient mold steel cutting device according to claim 4, characterized in that: The driving assembly (5) includes a driving motor (501) and a screw rod (503). The driving motor (501) is fixed to the top of one side of the gantry (3) in a transverse direction. The motor shaft (502) of the driving motor (501) passes through the side of the gantry (3) in a transverse sliding manner and the end thereof is coaxially fixed with the screw rod (503) through a coupling. A bearing seat (5010) is fixed to the inner wall of the other side of the gantry (3), and the other end of the screw rod (503) is connected to the inner wall of the bearing seat (5010). The inner ring of the bearing is coaxially fixed, and a guide column (505) is fixed laterally between the two sides of the gantry (3) at a position below the screw rod (503), and a nut (504) is coaxially engaged with the middle part of the screw rod (503), and a slide seat (506) is fixed vertically on the bottom surface of the nut (504), and the guide column (505) passes through the slide seat (506) in a transverse sliding fit, and the bottom surface of the slide seat (506) is vertically fixed with the laser cutting machine head body (6) through a fixing sleeve (508).

6. The efficient mold steel cutting device according to claim 5, characterized in that: The fixing sleeve (508) is welded and fixed to the bottom surface of the slide seat (506), and the fixing sleeve (508) and the laser cutting machine head body (6) are combined and connected in a threaded manner.

7. An efficient mold steel cutting device according to claim 5 or 6, characterized in that: A switch seat (507) is fixed in front of the slide seat (506) along a longitudinal vertical extension, and proximity switches (509) are fixed on the inner walls of both sides of the gantry (3) at positions in front of the guide column (505). The proximity switches (509) are electrically connected to the drive motor (501), and the proximity switches (509) are horizontally aligned with the switch seat (507).

8. The efficient mold steel cutting device according to claim 7, characterized in that: The safety protection components (4) each include a stud (403) and a safety seat (404), the middle parts of both sides of the gantry (3) are both laterally engaged and interspersed with the studs (403), and the ends of the studs (403) at both sides that are close to each other are coaxially connected to the bearing seat 2 (409), the end faces of the bearing seat 2 (409) at both sides that are opposite to each other are both vertically fixed with the safety seat (404) in the longitudinal direction, and the safety seats (404) at both sides are both flush with the middle part of the laser cutting machine head body (6), and the parts of the studs (403) at both sides that are away from each other and extend out of the outside of the gantry (3) are coaxially engaged with locking nuts (408).

9. The efficient mold steel cutting device according to claim 8, characterized in that: The outer ends of the studs (403) at both sides are coaxially fixed with hand wheels (401), and the end faces of the safety seats (404) at both sides that are opposite to each other are vertically provided with matching grooves (405) whose inner contours fit the outer contours of the laser cutting machine head body (6), and the matching grooves (405) are coaxially covered with a buffer lining (406) made of a buffer material.

10. An efficient mold steel cutting device according to claim 8 or 9, characterized in that: The gantry (3) is provided with guide holes (407) in the transverse direction at the front and rear positions corresponding to the studs (403), and the guide holes are inserted with guide rods (402) in a coaxial sliding manner, and the ends of the guide rods (402) at the two side positions that are close to each other are fixedly connected to the corresponding safety seats (404).

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