Laser beam cutting machine tool

Abstract

The invention relates to the field of intelligent welding systems, in particular to a laser beam cutting machine tool. A laser beam cutting machine tool comprises an ejector rod, sliding frames are connected to the front end and the rear end of the ejector rod in a sliding mode, a groove piece is fixed to the lower end of each sliding frame, inclined faces are arranged on the upper side and the lower side of the inner side of each groove piece, and a laser beam generator is arranged between the two groove pieces. Two check blocks are fixed to the ejector rod and are arranged on the inner sides of the two sliding frames in a blocking mode respectively, first blocking pieces are fixed to the front end and the rear end of the ejector rod respectively, compression springs are connected to the front end and the rear end of the ejector rod in a sleeving mode respectively, and the compression springs are located between the sliding frames and the first blocking pieces. The middle of the ejector rod is slidably connected to the transverse rod in the left-right direction, the left end and the right end of the transverse rod are fixed to the upper portions of the two supporting columns respectively, and the lower ends of the two supporting columns are fixed to the left end and the right end of the base respectively. The two sides of the kerf of the metal plate can be fixed, and the metal plate is prevented from bending and deforming due to gravity after being broken from the middle.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent welding system, more particularly to a laser beam cutting machine. BACKGROUND

[0002] In modern industrial production, laser beam cutting machine has become a key equipment in the field of metal plate processing due to its high precision and high efficiency. However, there is a technical bottleneck in the laser beam cutting machine on the market when cutting metal plates. The existing equipment only focuses on the cutting function of the laser beam on the plate, and lacks effective fixing devices on both sides of the cut seam of the metal plate. After the metal plate is cut in half by the laser beam, the two parts of the plate are prone to bending deformation due to the influence of gravity. This deformation not only makes it difficult to ensure the size accuracy of the cut plate, which cannot meet the demand of high-precision processing, but also affects the subsequent assembly and use performance, reducing product quality and production efficiency. SUMMARY

[0003] To overcome the shortcomings of the prior art, the present application provides a laser beam cutting machine, which has the beneficial effect of fixing the cut seam on both sides of the metal plate to prevent bending deformation due to gravity after the metal plate is cut in half.

[0004] A laser beam cutting machine comprises a top rod, the front and rear ends of the top rod are slidably connected with carriages, the lower end of each carriage is fixed with a groove, the upper and lower sides of the inner side of the groove are provided with inclined surfaces, and a laser beam generator is arranged between the two grooves.

[0005] Two stop blocks are fixed on the top rod and located on the inner sides of the two carriages, the front and rear ends of the top rod are fixed with stop sheets one, and the front and rear ends of the top rod are sleeved with compression springs, which are located between the carriages and the stop sheets one.

[0006] The middle part of the top rod is slidably connected with a horizontal rod in the left-right direction, the left and right ends of the horizontal rod are fixed on the upper parts of two support columns, and the lower ends of the two support columns are fixed on the left and right ends of a base.

[0007] The base is provided with a track in the left-right direction, the left and right ends of the track are slidably connected with L-shaped frames, the upper part of each L-shaped frame is fixed with a clamping strip one, the front and rear ends of the clamping strip one are fixed with guide rods, and a clamping strip two is slidably connected with the two guide rods on the clamping strip one. BRIEF DESCRIPTION OF DRAWINGS

[0008] The present application will be further described in detail below in combination with the drawings and specific implementation methods.

[0009] Figure 1 The structure of the laser beam cutting machine Figure 1 ; Figure 2 Structure diagram of a laser beam cutting machine Figure 2 ; Figure 3 Structure diagram of a laser beam cutting machine Figure 3 ; Figure 4 Structure diagram of a top rod Figure 5 Structure diagram of a base and L-shaped frame Figure 6 Structure diagram of a bottom strip Figure 1 ; Figure 7 Structure diagram of a bottom strip Figure 2 ; Figure 8 Structure diagram of a cylinder Figure 1 ; Figure 9 Structure diagram of a cylinder Figure 2 ; In the figure: top rod 101; stop block 102; sliding carriage 103; stop sheet 104; groove piece 105; Base 201; track 202; tab 203; lead screw 204; crossbar 205; support column 206; L-shaped frame 301; clamping strip 302; guide rod 303; clamping strip 304; top beam 305; Bottom strip 401; sliding groove 402; sliding block 403; lead screw 404; vertical column 405; strip rod 406; laser beam generator 407; stop sheet 408; round rod 409; mounting seat 410; compression ring 411; Cylinder 501; vertical groove 502; round sheet 503; sliding rod 504; ball seat 505; ball 506; collection cylinder 507; door-shaped frame 508; fixed sleeve 509. DETAILED DESCRIPTION

[0010] As shown in Figure 4 and 6 -7; The laser beam cutting machine bed comprises a top rod 101, the front and rear ends of the top rod 101 are slidably connected with sliding racks 103, the lower ends of each sliding rack 103 are welded with a groove piece 105, the inner sides of the groove piece 105 are provided with inclined surfaces on the upper and lower sides, and a laser beam generator 407 is arranged between the two groove pieces 105. Before the laser beam generator 407 cuts, the two groove pieces 105 are respectively inserted into the front and rear edges of the metal plate to be cut, so that the two groove pieces 105 are respectively located at the front and rear ends of the cutting seam to be cut. The upper and lower sides of the inner side of the groove piece 105 are provided with inclined surfaces, which can be inserted into the metal plate to be cut of different thicknesses, and the cutting seam of the metal plate is fixed on both sides to avoid bending and deformation of the metal plate after being cut in the middle due to gravity. The laser beam generator 407 is started to emit a high-energy laser beam focused on the surface of the metal plate, and the metal material is gradually removed by heat melting or gasification to form a cutting seam. Further, the sliding rack 103 can slide forward and backward on the top rod 101, so that the front and rear positions of the groove piece 105 can be adjusted. When the laser beam generator 407 moves to one of the groove pieces 105, the groove piece 105 can move away from the laser beam generator 407 to avoid damage to the groove piece 105 caused by the laser beam generator 407.

[0011] As shown in Figure 4 ; Because the top rod 101 is welded with two stop blocks 102, the two stop blocks 102 are respectively blocked on the inner sides of the two sliding racks 103, the front and rear ends of the top rod 101 are connected with stop sheets 104 through bolts, the front and rear ends of the top rod 101 are sleeved with compression springs, the compression springs are located between the sliding racks 103 and the stop sheets 104, the two compression springs respectively give the two sliding racks 103 elastic force, so that the two sliding racks 103 always have a tendency to approach each other, and the two groove pieces 105 always have a tendency to approach each other, so that the two groove pieces 105 are respectively pressed on the front and rear edges of the metal plate to be cut. By arranging the two groove pieces 105 at the front and rear ends of the cutting seam to be cut, the metal plate is prevented from bending and deforming due to gravity after being cut in the middle.

[0012] As shown in Figures 4-5 ; Because the middle part of the top rod 101 is slidably connected with the cross rod 205 in the left-right direction, the left and right ends of the cross rod 205 are respectively fixed on the upper parts of the two support columns 206, the lower ends of the two support columns 206 are respectively fixed on the left and right ends of the base 201, the base 201 supports the two support columns 206, and the two support columns 206 support the cross rod 205. The top rod 101 can slide left and right on the cross rod 205, so as to adjust the left and right positions of the two sliding racks 103 and the two groove pieces 105, and adapt to the left and right positions of the two groove pieces 105 when cutting the metal plate at different positions.

[0013] As shown in Figure 5As shown; Due to the left and right direction of the track 202 provided on the base 201, the left and right ends of the track 202 are slidably connected with the L-shaped frame 301, the upper part of the L-shaped frame 301 is fixed with the clamping strip one 302, the front and rear ends of the clamping strip one 302 are fixed with the guide rod 303, the clamping strip two 304 is slidably connected on the two guide rods 303 of the clamping strip one 302, and the two L-shaped frames 301 can be driven to slide left and right on the track 202 by the hydraulic cylinder, so as to adjust the distance between the two guide rods 303. Different left and right lengths of the metal plate can be inserted between the two guide rods 303, and then the clamping strip two 304 is moved downward on the two guide rods 303, so that the clamping strip two 304 and the clamping strip one 302 clamp the end of the metal plate. Through the two sets of clamping strip two 304 and clamping strip one 302, the two ends of the metal plate are clamped, and then the metal plate is fixed between the two sets of clamping strip two 304 and clamping strip one 302, which is convenient for cutting the metal plate by the laser beam generator 407.

[0014] As shown; Figure 5 As shown; Since the upper end of the two guide rods 303 on the clamping strip one 302 is connected with a top beam 305 through bolts, the top beam 305 is connected with a hydraulic cylinder through a flange, and the end of the hydraulic cylinder is connected with the clamping strip two 304 through a flange. The clamping strip two 304 can be driven to slide on the corresponding two guide rods 303 by the hydraulic cylinder, so as to drive the clamping strip two 304 to press the metal plate and clamp the end of the metal plate.

[0015] As shown; Figures 6-7 As shown; Since the laser beam generator 407 is connected to the middle part of the mounting seat 410 through bolts, the left and right ends of the mounting seat 410 are vertically slidably connected with the round rods 409, the lower ends of the two round rods 409 are welded with the pressing ring 411, the upper ends of the two round rods 409 are connected with the baffle two 408 through screws, and the compression spring is sleeved on each round rod 409. The compression spring is located between the mounting seat 410 and the pressing ring 411, and the two compression springs give the pressing ring 411 a downward pressure, so that the pressing ring 411 always has a downward pressure on the upper side of the metal plate; during the laser cutting process, the pressing ring 411 continuously presses the plate around the cutting point, effectively inhibits the micro-vibration of the plate caused by the input of laser energy or the spatter of molten slag, reduces the waviness of the cutting surface, and improves the surface quality.

[0016] The pressing ring 411 and the groove piece 105 at the front and rear ends form a three-point support structure, the groove piece 105 fixes the two ends of the cutting seam, the pressing ring 411 supports directly above the cutting point, and together they form a stable triangular support system, effectively inhibiting the micro-vibration of the plate caused by the input of laser energy or the spatter of molten slag.

[0017] Further, when the pressure ring 411 moves forward and backward to push the edge of the metal plate, the pressure ring 411 can automatically push the groove piece 105 outward, so that the groove piece 105 automatically leaves the metal plate, avoiding damage to the groove piece 105 caused by the laser beam generator 407.

[0018] As shown in Figures 6-7 ; Because the rear side of the mounting seat 410 is welded with the strip bar 406, the rear part of the strip bar 406 is vertically and slidingly connected to the upper part of the column 405, the strip bar 406 is driven to slide on the column 405 by the hydraulic cylinder, thereby driving the height of the mounting seat 410 and the laser beam generator 407, and when the pressure ring 411 is pressed on the metal plate, the mounting seat 410 continues to be driven to move downward relative to the pressure ring 411, thereby increasing the pressure of the pressure ring 411 on the metal plate, and adjusting the pressure of the pressure ring 411 on the metal plate according to the material and thickness of the metal plate to offset the plate micro-vibration caused by the input of laser energy or the spatter of molten slag.

[0019] As shown in Figures 5-7 ; Because the lower end of the column 405 is welded with the sliding block 403, the bottom strip 401 is slidingly connected to the track 202 in the left-right direction, the rear part of the bottom strip 401 is provided with the sliding groove 402, the sliding block 403 is slidingly connected to the sliding groove 402, the rear part of the bottom strip 401 is bolted with the motor, the output shaft of the motor is connected with the screw rod two 404 through the shaft coupling, the sliding block 403 is provided with the nut one corresponding to the screw rod two 404, and the screw rod two 404 is matched with the nut one through threads; the base 201 is fixed with two tabs 203, the both ends of the screw rod one 204 are rotatably connected to the two tabs 203 through the bearing seat, the screw rod one 204 is driven to rotate through the motor, the bottom strip 401 is provided with the nut two corresponding to the screw rod one 204, and the screw rod one 204 is matched with the nut two through threads, the motor can drive the sliding block 403 to move forward and backward on the sliding groove 402 when driving the screw rod two 404 to rotate, thereby driving the column 405 to move forward and backward; the motor can drive the bottom strip 401 to move left and right on the track 202 when driving the screw rod one 204 to rotate, thereby driving the column 405 to move left and right, thereby driving the strip bar 406, the laser beam generator 407 and the baffle two 408 to move forward and backward and left and right, and thereby driving the laser beam generator 407 to adjust the left-right position and cut the slit in the front-back direction.

[0020] The shape of the slit can also be a wave shape and the like, as long as the front and rear ends of the slit are respectively located within the left and right ranges of the two groove pieces 105.

[0021] As shown in Figures 6-9 ; Because the lower end of the column 405 is slidably connected to another bar 406, the front part of which is fixed to a cylinder 501, and the bar 406 is driven to slide by a hydraulic cylinder, the cylinder 501 has multiple vertical grooves 502 arranged in a ring shape, the upper part of which is fixed to a circular plate 503, and a slide rod 504 is vertically slidably connected to the circular plate 503. The upper part of the slide rod 504 is fixed to a ball bearing seat 505, and a ball bearing 506 is rotatably connected to the ball bearing seat 505. A compression spring is sleeved on the slide rod 504, and the lower end of the compression spring is fixed to the lower end of the slide rod 504. The upper end of the spring is fixed on the disc 503. The tension spring always exerts an upward force on the slide bar 504, so that the slide bar 504 always has an upward force, so that the multiple ball bearing seats 505 and multiple balls 506 always have an upward force, so that the multiple balls 506 are pressed against the lower side of the metal plate by the elastic force of the tension spring, and the cylinder 501 and multiple balls 506 will move with the column 405, so that the cylinder 501 and multiple balls 506 are always located below the laser beam generator 407, and the balls 506 can rotate easily and roll at the lower end of the metal plate. During the cutting process, as the laser beam generator 407 moves along the cutting path, the ball bearing 506, due to its rotatable characteristics, rolls forward on the lower surface of the metal plate. This provides continuous and stable support to the cutting point while significantly reducing movement resistance, preventing plate displacement or decreased cutting accuracy due to frictional resistance. Furthermore, the rolling characteristics of the ball bearing 506 effectively disperse vibrations generated during cutting, further enhancing cutting stability.

[0022] The ball bearing 506, together with the upper pressure ring 411 and the grooves 105 at both ends, form a three-dimensional support system. The grooves 105 clamp the front and rear edges of the plate, the pressure ring 411 presses down directly above the cutting point, and the ball bearing 506 lifts the lower surface of the plate. These three components work together to restrict the displacement and deformation of the plate from multiple directions. For example, when cutting large, thin plates, the middle of the plate is prone to sag due to its own weight. In this case, the upward lifting force provided by the ball bearing 506 and the downward pressure of the pressure ring 411 form a clamping action, combined with the edge fixing of the grooves 105, significantly improving cutting accuracy and surface quality. Simultaneously, after cutting, the hydraulic cylinder drives the lower bar 406 to move downwards, and the ball bearing 506 descends with the cylinder 501, detaching from the plate, facilitating quick disassembly and replacement of the plate.

[0023] This bottom rolling support mechanism effectively solves the problem of insufficient bottom support for sheet metal in traditional laser cutting through its elastic contact, dynamic following, and three-dimensional support design.

[0024] like Figures 8-9 As shown; Since the left and right ends of the lower side of the cylinder 501 are fixed with the fixed sleeve 509, the threaded hole on the fixed sleeve 509 is matched with the bolt, the two ends of the door-shaped frame 508 are inserted into the two fixed sleeves 509 from below, and the two bolts are pressed on the two sides of the door-shaped frame 508 to fix the door-shaped frame 508. The upper side of the door-shaped frame 508 is fixed with the collecting cylinder 507, and the upper part of the collecting cylinder 507 is a tapered shape expanding outward.

[0025] In the process of laser beam cutting metal plate, high temperature makes the material melt, gasification and form a large number of debris and slag, these debris if not collected in time, not only will pollute the working environment, but also may affect the cutting precision, damage the equipment.

[0026] The upper part of the collecting cylinder 507 adopts the design of outward expanding taper, which can effectively expand the receiving range of the debris. When the laser beam generator 407 performs cutting operation, the debris and slag generated by high temperature will splash around under the action of jet force and gravity, and the tapered opening can quickly converge and guide the debris in the larger area around the cutting point into the cylinder. At the same time, in the cutting process, the cylinder 501 and the ball 506 always follow the laser beam generator 407 to move, so that the collecting cylinder 507 is always located directly below the cutting point, ensuring that no matter how the cutting path changes, the generated debris can accurately fall into the collecting cylinder 507, avoiding the scattering and accumulation of debris.

[0027] The left and right ends of the lower side of the cylinder 501 are connected with the door-shaped frame 508 through the fixed sleeve 509. The threaded hole on the fixed sleeve 509 is matched with the bolt, which can realize the quick installation and disassembly of the door-shaped frame 508. When the collecting cylinder 507 needs to be installed, the two ends of the door-shaped frame 508 are inserted into the fixed sleeve 509, and the bolt is tightened. The pressure of the bolt will tightly press it on the two sides of the door-shaped frame 508, forming a stable fixing effect; when the collecting cylinder 507 is full of debris and needs to be cleaned, only the bolt needs to be loosened, and the door-shaped frame 508 and the collecting cylinder 507 can be easily removed. After pouring out the debris, reinstall, the operation is simple.

Claims

1. A laser beam cutting machine tool comprising a top rod (101), characterized in that: Both ends of the top rod (101) are slidably connected with carriages (103), the lower end of each carriage (103) is fixed with a groove piece (105), the inner side of the groove piece (105) is provided with inclined surfaces on the upper and lower sides, and the laser beam generator (407) is arranged between the two groove pieces (105).

2. A laser beam cutting machine according to claim 1, characterized in that: Two stop blocks (102) are fixed on the top rod (101), the two stop blocks (102) are respectively blocked on the inner sides of the two carriages (103), the front and rear ends of the top rod (101) are fixed with stop sheets (104), and the front and rear ends of the top rod (101) are sleeved with compression springs, which are located between the carriages (103) and the stop sheets (104).

3. A laser beam cutting machine according to claim 2, characterised in that: The middle part of the top rod (101) is slidably connected with the cross rod (205) in the left-right direction, the left and right ends of the cross rod (205) are respectively fixed on the upper parts of the two support columns (206), and the lower ends of the two support columns (206) are respectively fixed on the left and right ends of the base (201).

4. A laser beam cutting machine according to claim 3, characterised in that: The base (201) is provided with a track (202) in the left-right direction, the left and right ends of the track (202) are slidably connected with L-shaped frames (301), the upper part of the L-shaped frame (301) is fixed with a clamping strip (302), the left and right ends of the clamping strip (302) are fixed with guide rods (303), and a clamping strip (304) is slidably connected with the two guide rods (303) on the clamping strip (302).

5. A laser beam cutting machine according to claim 4, characterised in that: The upper ends of the two guide rods (303) on the clamping strip (302) are fixed with a top beam (305), the top beam (305) is fixed with a hydraulic cylinder, and the end of the hydraulic cylinder is fixed on the clamping strip (304).

6. A laser beam cutting machine according to claim 5, characterised in that: The laser beam generator (407) is fixed on the middle part of the mounting seat (410), the left and right ends of the mounting seat (410) are vertically slidably connected with round rods (409), the lower ends of the two round rods (409) are fixed with a compression ring (411), the upper ends of the two round rods (409) are fixed with stop sheets (408), and each round rod (409) is sleeved with a compression spring, which is located between the mounting seat (410) and the compression ring (411).

7. A laser beam cutting machine according to claim 6, characterised in that: The rear side of the mounting seat (410) is fixed with a strip rod (406), the rear part of the strip rod (406) is vertically slidably connected with the upper part of the stand column (405), and the strip rod (406) is driven to slide on the stand column (405) by the hydraulic cylinder.

8. A laser beam cutting machine according to claim 7, characterised in that: The lower end of the stand (405) is fixed with a sliding block (403), the bottom strip (401) is slidably connected with the track (202) in left-right direction, the rear part of the bottom strip (401) is provided with a sliding groove (402), the sliding block (403) is slidably connected with the sliding groove (402), the rear part of the bottom strip (401) is fixed with a motor, the output shaft of the motor is fixed with a screw rod two (404), the sliding block (403) is provided with a nut one corresponding to the screw rod two (404), the screw rod two (404) and the nut one are matched through threads; the base (201) is fixed with two tabs (203), the both ends of the screw rod one (204) are rotatably connected with the two tabs (203) through bearing seats, the screw rod one (204) is driven to rotate through the motor, the bottom strip (401) is provided with a nut two corresponding to the screw rod one (204), the screw rod one (204) and the nut two are matched through threads.

9. A laser beam cutting machine according to claim 8, characterised in that: The lower end of the stand (405) is slidably connected with another strip rod (406), the front part of the strip rod (406) is fixed with a cylinder (501), the strip rod (406) is driven to slide through a hydraulic cylinder, a plurality of vertical grooves (502) are arranged in annular shape on the cylinder (501), the upper part of the vertical groove (502) is fixed with a round piece (503), the round piece (503) is slidably connected with a sliding rod (504) vertically, the upper part of the sliding rod (504) is fixed with a ball seat (505), the ball seat (505) is rotatably connected with a ball (506), the sliding rod (504) is sleeved with a compression spring, the lower end of the compression spring is fixed on the lower end of the sliding rod (504), and the upper end of the compression spring is fixed on the round piece (503).

10. A laser beam cutting machine according to claim 9, characterised in that: The left and right ends of the lower side of the cylinder (501) are fixed with fixed sleeves (509), the bolts are threadedly connected with each fixed sleeve (509), the both ends of the door-shaped frame (508) are inserted into the two fixed sleeves (509) from below, the two bolts are pressed on the both sides of the door-shaped frame (508) to fix the door-shaped frame (508), the upper side of the middle part of the door-shaped frame (508) is fixed with a collecting cylinder (507), and the upper part of the collecting cylinder (507) is outwardly tapered.

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