A laser cutting device and method for flaring machine processing

Abstract

The present invention relates to the technical field of laser cutting, and in particular provides a laser cutting device and method for flaring machine processing. The laser cutting device for flaring machine processing includes a bottom plate, on which assembly holes are provided. On the top surface of the bottom plate, there are two front and rear slide rails. On the top surface of the bottom plate, there are two left and right clamping plates. A crank arm is pivoted on the hinge seat. Inside the clamping seat, a circular clamping cavity is provided. The laser cutting head is located above the clamping cavity under the drive of a manipulator. For a horizontal flaring machine, the device provided by the present invention can not only quickly position the upper template and the lower template, but also position the module. The positioning can be completed by rotating the crank arm to the left or right. At the same time, the positioning component is also embodied on the crank arm itself. In addition to being easy to operate and improving the laser cutting efficiency of this type of flaring machine, the processing accuracy is also improved under coaxial positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly relates to a laser cutting device and method for flaring machine processing. Background Art

[0002] A horizontal flaring machine is composed of an upper template, a lower template, a die hole opened between the upper and lower templates, and a module fixed at one end of the die hole (a forming hole collinear with the die hole is opened on the module, and the module has a hard texture and a relatively high cost. One is to prevent deformation during pipe orifice flaring, and the other is to reduce costs). A stamping mechanism (such as a punch) also needs to be provided on the end sides of the upper and lower templates. During use, the upper template is opened upward relative to the lower template, the pipe fitting to be flared is clamped in the die hole, one end of the pipe extends into the forming part of the module, the stamping mechanism moves relative to this end of the pipe and is pushed into the pipe orifice, and the die head on the stamping mechanism is used to complete the flaring action of this end of the pipe orifice.

[0003] The upper template and the lower template are made by wire cutting, which ensures seamless butt joint when the two templates are closed. The conventional technical means is to use a laser cutting head on a laser cutting device to first open a die groove at the front ends of the upper and lower dies according to the program, and then use the laser cutting head to process a forming hole on the module according to the program. During the above laser cutting, in order to prevent the upper and lower templates and the module from moving, a positioning mechanism needs to be set to clamp them multiple times. And after the upper and lower templates are opened with die holes by a drill bit on a drill press, they need to be transferred to the laser cutting device for re-clamping before the die groove cutting, resulting in low efficiency. Therefore, a device is needed to improve the working efficiency. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A laser cutting device for flaring machine processing, including a bottom plate, on which assembly holes are provided. On the top surface of the bottom plate, there are two front and rear sliding rails. On the top surface of the bottom plate, there are two left and right clamping plates. The bottoms of the two clamping plates are slidably fitted on the two sliding rails. The upper template and the lower template of the flaring machine are clamped between the two clamping plates. A hinge seat is provided on the left side of the clamping plate, and a crank arm is pivoted on the hinge seat. The free end of the crank arm is vertically upward and is provided with a horizontal bending part. At the end of the horizontal bending part, a clamping seat is installed. Inside the clamping seat, a circular clamping cavity is provided. The laser cutting head is located above the clamping cavity driven by a manipulator. Inside the clamping cavity, there are two left and right first clamping blocks. The module is clamped in the clamping cavity by the two left and right first clamping blocks. On the left clamping plate, there are two front and rear second through holes, and each of the two second through holes is provided with a second clamping block. One end of the crank arm provided on the hinge seat is provided with a rotating rod. On the two second clamping blocks, there are first racks. The two ends of the rotating rod extend towards the two second clamping blocks respectively. At the two ends of the rotating rod, first gears are fixed and are respectively engaged with the front and rear first racks. One end of the crank arm provided on the hinge seat is fixed with a first limiting plate. When the crank arm rotates right upwards to be vertical, the first limiting plate falls on the top surface of the hinge seat. At the same time, the clamping seat is brought to be parallel above the two clamping plates by the horizontal bending part. And at this time, the center of the clamping cavity, the laser cutting head and the space between the two clamping plates are collinear. When the crank arm rotates left and right, the two first gears are driven to rotate by the rotating rod, and the two second clamping blocks are driven to move right or left along the second through holes by using the meshing relationship between the first gears and the first racks.

[0006] As a further preference, a screw rod is commonly installed on the two left and right clamping plates. One end of the screw rod is installed with a hand wheel, and the other end of the screw rod is installed on the bottom plate through a bearing seat. By rotating the hand wheel, the hand wheel drives the screw rod to rotate, and the relative movement of the two left and right clamping plates is controlled by the rotation of the screw rod.

[0007] As a further preference, the two clamping plates are both L-shaped bent plates. By using the L-shaped bending part, a horizontal first stepped surface is provided in the middle of the clamping plate.

[0008] As a further preference, a second limiting plate is fixed on the left clamping plate. The second limiting plate extends horizontally to the left and is provided with a limiting part that bends upwards at the end of the second clamping block.

[0009] As a further preference, a vertical rod is fixed on the bottom plate. The vertical rod is on the same side as the right clamping plate and is located behind the right vertical rod. The top of the vertical rod reaches the right side of the clamping seat. First through holes are formed on the left and right sides of the clamping seat. One end of the first clamping block on the right is slidably fitted in the first through hole on the right, and the first clamping block on the left is slidably fitted in the first through hole on the left. A threaded hole is formed at the top of the vertical rod, and a bolt is installed at the top of the vertical rod through the threaded hole. The bolt and the first clamping block are on the same straight line. A locking port is formed at the right end of the first clamping block on the right. When the left end of the bolt locks to the left, it abuts against the locking port. A second gear is rotatably connected in the clamping cavity. Second racks are fixed on the left and right first clamping blocks. The second rack on the left meshes with the upper side of the second gear, and the second rack on the right meshes with the lower side of the second gear.

[0010] As a further preference, second stepped surfaces are formed downward from the top surfaces of the two first clamping blocks, and the top surface heights of the two second stepped surfaces are the same.

[0011] As a further preference, discharge plates are provided on the opposite surfaces of the two clamping plates. The two discharge plates are inclined backward and downward, and the bottom surface of one discharge plate coincides with the top surface of the other discharge plate.

[0012] The present invention also provides a use method of the laser cutting device for a flaring machine processing, including the following steps:

[0013] Step S01: Fix the bottom plate on the workbench of the drilling machine through the assembly holes, and after splicing the upper template and the lower template front and back, clamp them vertically between the left and right clamping plates;

[0014] Step S02: On the drilling machine in Step S01, drill die holes on the upper template and the lower template from top to bottom through a drill bit;

[0015] Step S03: Transfer and fix the laser cutting device for a flaring machine processing on the workbench of the laser cutting machine through the assembly holes and the bottom plate, and cut die grooves at the tops of the upper template and the lower template by a laser cutting head;

[0016] Step S04: Clamp the module in the clamping cavity, and use the laser cutting head to cut a forming hole on the module that is on the same axis as the die hole.

[0017] The beneficial effects of the present invention compared with the prior art are:

[0018] After the upper template and the lower template are positioned on the device and then transferred to the laser cutting machine for laser cutting, they are still fixed between the two clamping plates. With one-time clamping of the upper template and the lower template, they can be drilled and laser cut, which is convenient for operation. When the crank arm rotates upward, in addition to bringing the hole centers of the clamping seat and the clamping cavity to be coaxial with the die holes between the upper template and the lower template, at this time, the hinged end of the crank arm drives the rotating rod to rotate clockwise, and the front and rear ends of the rotating rod drive the front and rear first gears to rotate clockwise. The two first gears drive the front and rear first racks to move leftward, and the two first racks drive the front and rear second clamping blocks to move leftward. The restrictions on the back of the upper template are released, and the restrictions on the front of the lower template are released. The upper template and the lower template can be removed, and only need to position the module in the clamping cavity according to the above positioning method to complete the laser cutting of the forming holes. For the horizontal reaming machine, the device provided by the present invention can not only quickly position the upper template and the lower template, but also position the module. The positioning method can be completed by rotating the crank arm leftward or rightward. At the same time, the positioning component is also embodied on the crank arm itself. In addition to being convenient for operation and improving the laser cutting efficiency of this type of flaring machine, under the coaxial positioning, the processing accuracy is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a partial structural schematic diagram of a flaring machine to be processed in a laser cutting device for flaring machine processing provided by an embodiment of the present invention;

[0020] Figure 2 FIG. 10 is a schematic diagram of a laser cutting device for flaring machine processing provided by an embodiment of the present invention, in which the crank arm drives the clamping seat to rotate leftward and open;

[0021] Figure 3 FIG. 14 is a schematic diagram of a laser cutting device for flaring machine processing provided by an embodiment of the present invention applied to clamp the upper template and the lower template to be cut;

[0022] Figure 4 FIG. 18 is a schematic diagram of the principle of high-efficiency cutting of the die slots and modules on the upper template and the lower template by a laser cutting head in a laser cutting device for flaring machine processing provided by an embodiment of the present invention;

[0023] Figure 5 FIG. 22 is a laser cutting device for flaring machine processing provided by an embodiment of the present invention Figure 4 The enlarged schematic view of part A drawn;

[0024] Figure 6 FIG. 28 is a laser cutting device for flaring machine processing provided by an embodiment of the present invention Figure 4 Another schematic view under a rotating perspective drawn;

[0025] Figure 7A laser cutting device for flaring machine processing provided by an embodiment of the present invention consists of Figure 3 A schematic diagram from another rotating perspective drawn therefrom;

[0026] Figure 8 A left-side plane schematic diagram of a laser cutting device for flaring machine processing provided by an embodiment of the present invention.

[0027] In the figure: 1, base plate; 2, assembly hole; 3, slide rail; 4, clamping plate; 5, hinge seat; 6, crank arm; 7, horizontal bending part; 8, clamping seat; 9, clamping cavity; 10, first clamping block; 11, second through hole; 12, second clamping block; 13, rotating rod; 14, first rack; 15, first limiting plate; 16, first gear; 17, first stepped surface; 18, screw rod; 19, hand wheel; 20, second limiting plate; 21, vertical rod; 22, first through hole; 23, second stepped surface; 24, bolt; 25, locking port; 26, second gear; 27, second rack; 28, discharge plate; 29, upper template; 30, lower template; 31, laser cutting head; 32, die hole; 33, die groove; 34, module; 35, forming hole. Specific embodiments

[0028] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments.

[0029] In one embodiment, as Figures 1 - 8As shown in the figure: This embodiment provides a laser cutting device for flaring machine processing, including a bottom plate 1. Assembly holes 2 are provided on the bottom plate 1. Two front and rear slide rails 3 are provided on the top surface of the bottom plate 1. Two left and right clamping plates 4 are provided on the top surface of the bottom plate 1. The bottoms of the two clamping plates 4 are slidably fitted on the two slide rails 3. The upper template 29 and the lower template 30 of the flaring machine are clamped between the two clamping plates 4. A hinge seat 5 is provided on the left side of the clamping plate 4. An articulated arm 6 is pivoted on the hinge seat 5. The free end of the articulated arm 6 is vertically upward and is provided with a horizontal bending part 7. A clamping seat 8 is installed at the end of the horizontal bending part 7. A circular clamping cavity 9 is provided inside the clamping seat 8. The laser cutting head 31 is located above the clamping cavity 9 driven by a manipulator. Two left and right first clamping blocks 10 are provided in the clamping cavity 9. The module 34 is clamped in the clamping cavity 9 through the two left and right first clamping blocks 10. Two front and rear second through holes 11 are provided on the left clamping plate 4. A second clamping block 12 is provided in each of the two second through holes 11. One end of the articulated arm 6 provided on the hinge seat 5 is provided with a rotating rod 13. A first rack 14 is provided on the two second clamping blocks 12. The two ends of the rotating rod 13 extend towards the two second clamping blocks 12 respectively. First gears 16 meshing with the front and rear first racks 14 are fixed at the two ends of the rotating rod 13. A first limiting plate 15 is fixed at one end of the articulated arm 6 provided on the hinge seat 5. When the articulated arm 6 rotates to the right and up to be vertical, the first limiting plate 15 falls on the top surface of the hinge seat 5. At the same time, the clamping seat 8 is brought to be parallel above the two clamping plates 4 by the horizontal bending part 7. And at this time, the center of the clamping cavity 9, the laser cutting head 31 and the space between the two clamping plates 4 are collinear. When the articulated arm 6 rotates left and right, the two first gears 16 are driven to rotate by the rotating rod 13, and the two second clamping blocks 12 are driven to move right or left along the second through holes 11 by using the meshing relationship between the first gears 16 and the first racks 14.

[0030] As a further preference, a screw rod 18 is commonly installed on the two left and right clamping plates 4. A hand wheel 19 is installed at one end of the screw rod 18. The other end of the screw rod 18 is installed on the bottom plate 1 through a bearing seat. By rotating the hand wheel 19, the screw rod 18 is driven to rotate, and the relative or reverse movement of the two left and right clamping plates 4 is controlled by using the rotation action of the screw rod 18.

[0031] As a further preference, both of the two clamping plates 4 are L-shaped bent plates. The horizontal first stepped surface 17 is provided in the middle of the clamping plate 4 by using the L-shaped bending part.

[0032] As a further preference, a second limiting plate 20 is fixed on the left clamping plate 4. The second limiting plate 20 extends horizontally to the left and is provided with a limiting part bent upward on the end of the second clamping block 12.

[0033] As a further preference, a vertical rod 21 is fixed on the bottom plate 1. The vertical rod 21 is on the same side as the right clamping plate 4 and is located at the rear of the right vertical rod 21. The top end of the vertical rod 21 reaches the right side of the clamping seat 8. First through holes 22 are formed on the left and right sides of the clamping seat 8. One end of the first clamping block 10 on the right side is slidably fitted in the first through hole 22 on the right side, and the first clamping block 10 on the left side is slidably fitted in the first through hole 22 on the left side. A threaded hole is formed at the top end of the vertical rod 21, and a bolt 24 is installed at the top end of the vertical rod 21 through the threaded hole. The bolt 24 and the first clamping block 10 are on the same straight line. A locking port 25 is formed at the right end of the first clamping block 10 on the right side. When the left end of the bolt 24 is locked to the left, it abuts against the locking port 25. A second gear 26 is rotatably connected in the clamping cavity 9. Second racks 27 are fixed on the left and right first clamping blocks 10. The second rack 27 on the left side meshes with the upper side of the second gear 26, and the second rack 27 on the right side meshes with the lower side of the second gear 26.

[0034] As a further preference, second stepped surfaces 23 are formed downward from the top surfaces of the two first clamping blocks 10, and the top surface heights of the two second stepped surfaces 23 are the same.

[0035] As a further preference, discharge plates 28 are provided on the opposite surfaces of the two clamping plates 4. The two discharge plates 28 are inclined toward the rear lower direction, and the bottom surface of one discharge plate 28 coincides with the top surface of the other discharge plate 28.

[0036] Working principle and technical effect: When processing the flaring machine shown by laser cutting machine Figure 1 The laser cutting process applied is mainly applied to the upper template 29, the lower template 30 and the module 34. As Figure 2 is the laser cutting device provided by the present invention. Specifically, it refers to the fixture used when processing the above components in the flaring machine shown Figure 1 The bottom plate 1 is fixed on the vertical drilling machine through the assembly hole 2, and then the upper template 29 and the lower template 30 are erected between the two clamping plates 4 as Figure 3 shown. Then, the crank arm 6 is deflected in the lower left direction. The rotating rod 13 is driven by the hinged end of the crank arm 6, and then the first gears 16 at the front and rear ends are driven by the rotating rod 13 to rotate counterclockwise. The two first racks 14 are driven by the two first gears 16 to move to the right, and the two second clamping blocks 12 are pushed by the two first racks 14 to move to the right, so that the right ends of the two second clamping blocks 12 respectively enter behind the upper template 29 and in front of the lower template 30. During the drilling operation, the front and rear movement of the upper template 29 and the lower template 30 is prevented (the upper template 29 and the lower template 30 are fixed). At this time, the upper template 29 and the lower template 30 face upward and face the drill bit. The drill bit descends and drills the die holes 32 in the upper template 29 and the lower template 30. The waste falls onto the discharge plates 28 and is discharged out of the device by the discharge plates 28.

[0037] In addition, it is worth mentioning that when the above-mentioned parts in the above-mentioned expanding machine are cut on the laser cutting equipment by using the present device, the processing accuracy can be improved: after the upper template 29 and the lower template 30 have completed drilling the mold hole 32, the bottom plate 1 is quickly transferred to the laser cutting equipment through the assembly hole 2, and at this time, the upper template 29 and the lower template 30 will also be cut according to the laser cutting equipment. Figure 3 The shape shown is transferred to the laser cutting equipment along with the device, and the upper template 29 and the lower template 30 have been fixed in advance in the drilling process. The manipulator brings the laser cutting head 31 to the top of the mold hole 32. Under program control, the laser cutting head 31 opens a mold groove 33 downward from the top surface of the upper template 29 and the lower template 30. The round blocks dropped during laser cutting fall onto the discharge plate 28 and are discharged outward. Since the mold hole 32 corresponds to the bottom of the laser cutting head 31, according to the technical characteristics of CNC laser cutting machine programming, the laser cutting head 31 can use the center of the mold hole 32 as the starting point (X, Y, and Z coordinates are all 0) when aligning the tool. Then, the drawing trajectory of the mold groove 33 is input into the program through computer drawing software, and the mold groove 33 is processed with the center of the circle as the processing starting point, so that the mold groove 33 is processed more accurately, ensuring that the center of the mold groove 33 obtained after laser cutting is on the same axis as the center of the mold hole 32; press Figure 4 , Figure 5 , Figure 6 as well as Figure 7 As shown, the crank arm 6 is rotated to the upper right so that the free end of the crank arm 6 brings the clamping seat 8 to the top of the die hole 32. At this time, not only the center of the die groove 33 and the center of the die hole 32 are on the same axis, but also the center of the clamping cavity 9 and the center of the die hole 32 are on the same axis. Turn the bolt 24 so that the inner end of the bolt 24 is pressed against the locking port 25 at the outer end of the first clamping block 10 on the right side. Then, the module 34 is placed flat on the second step surface 23 at the inner ends of the left and right first clamping blocks 10. The locking bolt 24 causes the first clamping block 10 on the right end to move left, and the first clamping block 10 on the right end drives the second rack 27 on the right end to move left, and engages the second gear 26 to rotate counterclockwise, and the second gear 26 drives the second rack 27 on the left side to move right, and the second rack 27 on the left side drives the first clamping block 10 on the left side to move right, so that the module 34 is fixed. The rack and gear are linked to each other to ensure that the movement amplitude of the left and right first clamping blocks 10 is consistent, thereby ensuring that the center of the module 34 is also on the same axis as the center of the die hole 32. The robot moves up with the laser cutting head 31, changing the Z coordinate point, but the X and Y coordinate points still use the center of the circle as the processing starting point. Then, the drawing trajectory of the forming hole 35 is input into the program through the computer drawing software, and the forming hole 35 is processed on the module 34 with the center of the circle as the processing starting point, so that the processing accuracy of the forming hole 35 is more accurate, ensuring that the center of the forming hole 35 obtained after laser cutting is on the same axis as the center of the die hole 32, and the forming hole 35 is processed. Figure 1When the flaring machine shown is used, after the upper template 29 and the lower template 30 are opened, the round tube is placed into the die hole 32. At the same time, one end of the round tube can accurately extend out of the forming hole 35 of the module 34. After being stamped by the stamping die head against the extended end of the round tube, flaring is completed, ensuring the flaring quality and avoiding material shortage or cracking at the pipe orifice.

[0038] In summary, after the upper template 29 and the lower template 30 are positioned on the device, when they are transferred to the laser cutting machine for laser cutting, they are still fixed between the two clamping plates 4. The upper template 29 and the lower template 30 can be drilled and laser cut with one clamping, which is convenient for operation. When the crank arm 6 rotates upward, in addition to bringing the centers of the clamping seat 8 and the clamping cavity 9 to be coaxial with the die hole 32 between the upper template 29 and the lower template 30, at this time, the hinged end of the crank arm 6 drives the rotating rod 13 to rotate clockwise, and the front and rear ends of the rotating rod 13 drive the front and rear first gears 16 to rotate clockwise. The two first gears 16 drive the front and rear first racks 14 to move leftward, and the two first racks 14 drive the front and rear second clamping blocks 12 to move leftward. The restriction on the back of the upper template 29 is released, and the restriction on the front of the lower template 30 is released. The upper template 29 and the lower template 30 can be removed, and only the module 34 needs to be positioned in the clamping cavity 9 according to the above positioning method to complete the laser cutting of the forming hole 35. For the horizontal flaring machine, the device provided by the present invention can not only quickly position the upper template 29 and the lower template 30, but also position the module 34. The positioning method can be completed by rotating the crank arm 6 leftward or rightward. At the same time, the positioning component is also embodied in the crank arm 6 itself. In addition to being convenient for operation and improving the laser cutting efficiency of this type of flaring machine, under the coaxial positioning, the processing accuracy is also improved.

[0039] The present invention also provides a use method of a laser cutting device for a flaring machine as described above, including the following steps:

[0040] Step S01: Fix the bottom plate 1 on the workbench of the drilling machine through the assembly hole 2, and after splicing the upper template 29 and the lower template 30 front and back, clamp them vertically between the left and right clamping plates 4;

[0041] Step S02: On the drilling machine in Step S01, drill the die hole 32 on the upper template 29 and the lower template 30 from top to bottom through the drill bit;

[0042] Step S03: Transfer and fix the laser cutting device for the flaring machine on the workbench of the laser cutting machine through the assembly hole 2 and the bottom plate 1, and at the top of the upper template 29 and the lower template 30, cut out the die groove 33 by the laser cutting head 31;

[0043] Step S04: Clamp the module 34 in the clamping cavity 9, and use the laser cutting head 31 to cut out the forming hole 35 on the module 34 that is coaxial with the die hole 32.

[0044] The above orientation references do not represent the specific orientations of the components in this implementation solution. This implementation solution is only for the convenience of describing the solution and is set with relative descriptions with reference to the orientations in the figures. In essence, the specific orientations of the components are based on their actual installation, actual use, and the habitual orientation descriptions of those skilled in the art. This is hereby stated.

[0045] The specific implementation manners described above further elaborate on the object of the invention, the technical solution, and the beneficial effects of the present invention. It should be understood that the above is only the specific implementation manner of the present invention and is not used to limit the protection scope of the present invention. In particular, for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A laser cutting device for expansion machining, characterized in that: The invention comprises a bottom plate (1), an assembly hole (2) is provided on the bottom plate (1), two front and rear slide rails (3) are provided on the top surface of the bottom plate (1), two left and right clamping plates (4) are provided on the top surface of the bottom plate (1), the bottoms of the two clamping plates (4) are slidably matched on the two slide rails (3), the upper template (29) and the lower template (30) of the expanding machine are clamped between the two clamping plates (4), a hinge seat (5) is provided on the left side of the clamping plate (4), a crank arm (6) is connected to the hinge seat (5), and the free end of the crank arm (6) is vertically upward and is provided with a horizontal bending portion (7), a clamping seat (8) is installed at the end of the horizontal bending portion (7), a circular clamping cavity (9) is opened inside the clamping seat (8), the laser cutting head (31) is located above the clamping cavity (9) under the drive of the manipulator, two left and right first clamping blocks (10) are arranged in the clamping cavity (9), the module (34) is clamped in the clamping cavity (9) through the two left and right first clamping blocks (10), the left clamping plate (4) is provided with two second through holes (11) at the front and rear positions, and each of the two second through holes (11) is provided with a second clamping block (1 2), one end of the crank arm (6) arranged on the hinge seat (5) is provided with a rotating rod (13), the two second clamping blocks (12) are provided with a first rack (14), the two ends of the rotating rod (13) respectively extend toward the two second clamping blocks (12), the two ends of the rotating rod (13) are fixed with a first gear (16) respectively meshed with the front and rear two first racks (14), one end of the crank arm (6) arranged on the hinge seat (5) is fixed with a first limit plate (15), when the crank arm (6) is rotated to the upper right to be vertical, the first limit plate (15) falls On the top surface of the hinge seat (5), the horizontal curved portion (7) simultaneously brings the clamping seat (8) to a position parallel to the top of the two clamping plates (4), and at this time, the center of the clamping cavity (9), the laser cutting head (31) and the two clamping plates (4) are in a colinear line. When the crank arm (6) rotates left and right, the rotating rod (13) drives the two first gears (16) to rotate, and utilizes the meshing relationship between the first gear (16) and the first rack (14) to drive the two second clamping blocks (12) to move right or left along the second through hole (11).

2. The laser cutting device for expanding machine processing according to claim 1, characterized in that: A screw rod (18) is commonly mounted on the left and right clamping plates (4), one end of the screw rod (18) is mounted with a hand wheel (19), and the other end of the screw rod (18) is mounted on the base plate (1) via a bearing seat. The hand wheel (19) is rotated to drive the screw rod (18) to rotate, and the rotation of the screw rod (18) is used to control the left and right clamping plates (4) to move toward or in opposite directions.

3. The laser cutting device for expanding machine processing according to claim 2, characterized in that: The two clamping plates (4) are both L-shaped bent plates, and the L-shaped bending portion is used to provide a horizontal first step surface (17) in the middle of the clamping plates (4).

4. The laser cutting device for expanding machine processing according to claim 3, characterized in that: A second limiting plate (20) is fixed on the left clamping plate (4), and the second limiting plate (20) extends horizontally to the left and is provided with a limiting portion bent upward on the end of the second clamping block (12).

5. The laser cutting device for expanding machine processing according to claim 4, characterized in that: A vertical rod (21) is fixed on the bottom plate (1), the vertical rod (21) is on the same side as the clamping plate (4) on the right side, and the vertical rod (21) is located on the rear side of the screw rod (18), the top end of the vertical rod (21) reaches the right side of the clamping seat (8), and the left and right sides of the clamping seat (8) are provided with first through holes (22), one end of the first clamping block (10) on the right side is slidably fitted in the first through hole (22) on the right side, and the first clamping block (10) on the left side is slidably fitted in the first through hole (22) on the left side, and a threaded hole is provided on the top end of the vertical rod (21), through which the threaded hole is provided. A bolt (24) is installed at the top of the vertical rod (21), and the bolt (24) and the first clamping block (10) are in the same straight line. A locking hole (25) is opened at the right end of the first clamping block (10) on the right side, and the left end of the bolt (24) presses against the locking hole (25) when locked to the left. A second gear (26) is connected in the clamping cavity (9), and second racks (27) are fixed on the left and right first clamping blocks (10). The second rack (27) on the left side is meshed with the upper side of the second gear (26), and the second rack (27) on the right side is meshed with the lower side of the second gear (26).

6. The laser cutting device for expanding machining according to claim 5, characterized in that: A second stepped surface (23) is provided downwardly from the top surfaces of the two first clamping blocks (10), and the top surfaces of the two second stepped surfaces (23) are of the same height.

7. The laser cutting device for expanding machine processing according to claim 6, characterized in that: Discharge plates (28) are provided on the opposite surfaces of the two clamping plates (4), and the two discharge plates (28) are inclined toward the rear and downward direction, and the bottom surface of one discharge plate (28) overlaps the top surface of the other discharge plate (28).

8. A method for using the laser cutting device for expanding machining as claimed in claim 7, characterized in that: The following steps are involved: Step S01, fix the base plate (1) on the workbench of the drilling machine through the assembly hole (2), and splice the upper template (29) and the lower template (30) front and back, and clamp them between the left and right clamping plates (4) in an upright manner; Step S02, on the drilling machine in step S01, using a drill bit to drill mold holes (32) on the upper mold plate (29) and the lower mold plate (30) from top to bottom; Step S03, transferring and fixing the laser cutting device for expanding machine processing on the workbench of the laser cutting machine through the assembly hole (2) and the bottom plate (1), and cutting a die groove (33) at the top of the upper template (29) and the lower template (30) by a laser cutting head (31); Step S04: clamp the module (34) in the clamping cavity (9), and use a laser cutting head (31) to cut a forming hole (35) on the module (34) on the same axis as the mold hole (32).

Images