A portal laser welding machine for H-shaped steel

Abstract

The application provides a portal laser welding machine for H-shaped steel, and relates to the field of laser welding, which comprises a portal frame, a laser welding assembly and an H-shaped steel clamping assembly. The laser welding assembly comprises a first laser welding head, a connecting frame, a square connecting rod and a second laser welding head. The connecting frame is fixed on the support of the first laser welding head, the square connecting rod is fixed on the top side of the connecting frame, the upper end of the square connecting rod is slidingly inserted into the square hole in the middle of the I-shaped plug, the inclined connecting frame is fixed on the support of the second laser welding head, and one end of the inclined connecting frame is slidingly inserted into the inclined insertion hole on the connecting frame. The H-shaped steel clamping assembly comprises an inclined frame, a U-shaped support frame, a supporting plate, a first motor and a sliding clamping plate. The width of the H-shaped steel can be adjusted, the H-shaped steel can be clamped and lifted, and the two ends of the inner side of the H-shaped steel can be simultaneously welded by adjusting the positions of the two laser welding heads.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and in particular to a gantry laser welding machine for H-beams. Background Technology

[0002] H-beams are mainly divided into two types according to their production methods: hot-rolled H-beams and welded H-beams. Welded H-beams are steel plates assembled into an H-shaped section through welding, and have advantages such as customizable cross-sectional dimensions and flexible cross-sectional changes.

[0003] Currently, laser welding machines for H-beams cannot adjust the clamping according to the width of the H-beam, and usually can only weld one connection between the horizontal and vertical steel plates in the H-beam at a time, which requires multiple welding operations and is quite troublesome. Summary of the Invention

[0004] To address the problems in the background art, the present invention provides a gantry laser welding machine for H-beams, which can be adjusted according to the width of the H-beams, clamp and lift the H-beams, and simultaneously weld the inner ends of the H-beams by adjusting the positions of the two sets of laser welding heads.

[0005] The present invention provides a gantry laser welding machine for H-beams, specifically comprising: a gantry, a laser welding assembly, and an H-beam positioning assembly;

[0006] A control box is installed inside the gantry, and drive wheels and auxiliary wheels are fixed at both ends of the bottom. A set of horizontal plates is inserted into the two sets of horizontal tubes at the top.

[0007] The horizontal plate has notches at the middle of both ends, and I-shaped inserts are slidably inserted into the notches. Side sliding grooves are provided on both sides of the notches, and I-shaped sliders are slidably engaged in the side sliding grooves.

[0008] The laser welding assembly includes a first laser welding head, a connecting frame, a square connecting rod, and a second laser welding head;

[0009] A connecting frame is fixed on the support of the first laser welding head, and a square connecting rod is fixed on the top side of the connecting frame. The upper end of the square connecting rod is slidably inserted into the square hole in the middle of the I-shaped insert. A slanted connecting frame is fixed on the support of the second laser welding head, and one end of the slanted connecting frame is slidably inserted into the slanted insertion hole on the connecting frame.

[0010] The H-beam positioning assembly includes a diagonal frame, a U-shaped support frame, a support plate, a first motor, and a sliding clamping plate;

[0011] The bottom side of the inclined frame is fixed with six sets of U-shaped support frames, and the inner side is provided with six sets of trays and six sets of sliding clamps. The inner side of the inclined frame is provided with six sets of adjustment grooves, and I-shaped adjustment blocks are slidably fitted in the adjustment grooves. The I-shaped adjustment blocks are connected by I-shaped connecting frames through bolts. The middle set of I-shaped connecting frames is also connected to the telescopic end of the electric push rod, and the outer end of the electric push rod is fixed to the bottom side of the inclined frame. The outermost I-shaped adjustment block is also connected to a U-shaped mounting frame through bolts, and the first motor is fixed on the U-shaped mounting frame.

[0012] Furthermore, an inclined connecting plate is fixed to the upper side of the inclined insertion hole, and a locking screw is screwed onto the inclined connecting plate through a threaded hole, with the lower end of the locking screw tightly attached to the inclined connecting frame.

[0013] Furthermore, the square connecting rod is provided with a horizontal plate, and an adjusting screw is screwed onto the horizontal plate through a threaded hole. The upper end of the adjusting screw is screwed into the threaded hole in the middle of the I-shaped slider.

[0014] Furthermore, the bottom side plate of the I-shaped slider is connected to a locking screw through a threaded hole. The locking screw is in close contact with the bottom surface of the horizontal plate, and the bottom side plate of the I-shaped slider does not contact the bottom surface of the horizontal plate.

[0015] Furthermore, the outermost inclined lower end of the inclined frame is provided with a corner clamping structure, and the outer surface of the corner clamping structure is engraved with scale line A. The outermost set of support plates is an L-shaped structure, and the support plates of the other sets are flat plate structures. One end of the sliding clamp of the outermost set is also provided with a corner clamping structure, and the outer surface of the corner clamping structure is engraved with scale line B.

[0016] Furthermore, the I-shaped adjusting block also has a lifting screw engaged through a threaded hole. The two ends of the lifting screw are optical shaft structures. The upper end is rotated and clamped to the U-shaped frame on the bottom side of the support plate through a circular plate. The lower ends are connected to each other through chain transmission. The lower end of the outermost lifting screw is also connected to the motor shaft of the first motor through chain transmission.

[0017] Furthermore, the inclined upper end of the inclined frame is provided with a threaded sleeve in the middle, and F-type connecting brackets are fixed at the upper end respectively. Clamping screws are respectively engaged in the threaded sleeve by threads. The inclined lower end of the clamping screw is an optical axis structure and is rotated and clamped in the U-shaped frame outside the sliding clamping plate by a circular plate.

[0018] Furthermore, the clamping screw has a spline groove in the middle, and a spline shaft is slidably inserted in the spline groove. The outer end of the spline shaft is an optical shaft structure and is connected to each other by a chain drive. The outermost F-type connecting frame has a second motor fixed inside, and the outermost spline shaft is also connected to the motor shaft of the second motor by a chain drive.

[0019] The gantry laser welding machine for H-beams provided by this invention has the following beneficial effects:

[0020] This invention can adjust the width of the H-beam and clamp and lift it. It can also weld the inner ends of the H-beam simultaneously by adjusting the position of the two sets of laser welding heads.

[0021] In addition, by setting up an H-beam positioning assembly, the position of the I-beam adjusting block is adjusted by an electric push rod and an I-beam connecting frame according to the width of the horizontal steel plate of the H-beam, so that the support plate is in the middle of the horizontal steel plate. The first motor drives the lifting screw to rotate, and under the engagement with the threaded hole in the middle of the I-beam adjusting block, the height of the support plate is adjusted. Then, the height of the horizontal steel plate is adjusted by the scale line, so that the horizontal steel plate is in the middle of the vertical steel plate of the H-beam. The second motor drives the clamping screw to rotate by a spline shaft, and under the engagement with the threaded sleeve, the inner end of the sliding clamp is tightly attached to the vertical steel plate of the H-beam for positioning and clamping.

[0022] Furthermore, by setting up a laser welding assembly, the height of the square connecting rod is adjusted by sliding, and the top of the adjusting screw is screwed into the threaded hole in the middle of the I-shaped slider for fixation. The position of the I-shaped insert and the I-shaped slider is adjusted by sliding, and the position of the I-shaped slider is locked by the top of the locking screw against the bottom of the horizontal plate, so that the first laser welding head contacts the connection between one set of vertical steel plates and the horizontal steel plate of the H-beam. By sliding the oblique connecting frame and locking it by the locking screw against the oblique connecting frame, the second laser welding head contacts the connection between the other set of vertical steel plates and the horizontal steel plate of the H-beam. Thus, the connection between the two sets of vertical steel plates and the horizontal steel plate of the H-beam can be welded simultaneously by two sets of laser welding heads. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0024] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0025] In the attached diagram:

[0026] Figure 1 A schematic diagram of the overall structure of the present invention is shown;

[0027] Figure 2 The present invention is shown Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 3 The present invention is shown Figure 1 Schematic diagram of the mid-lateral elevation structure;

[0029] Figure 4 The present invention is shown Figure 3Enlarged structural diagram at point B;

[0030] Figure 5 This invention illustrates a schematic diagram of the laser welding assembly after the second laser welding head is separated from the first laser welding head.

[0031] Figure 6 A side-tilt structure diagram of the H-beam steel positioning assembly in this invention is shown;

[0032] Figure 7 The present invention is shown Figure 6 Enlarged structural diagram at point C;

[0033] Figure 8 The diagram shows a side-view top view of the H-beam steel positioning assembly in this invention.

[0034] Figure 9 The present invention is shown Figure 8 Enlarged structural diagram at point D;

[0035] Figure 10 This invention shows a schematic diagram of the outermost support plate and the I-shaped adjusting block.

[0036] Figure 11 The diagram shows the outermost sliding clamp and the spline shaft when they are pulled out of the clamping screw in this invention.

[0037] List of reference numerals

[0038] 1. Gantry; 101. Control box; 102. Drive wheel; 103. Auxiliary wheel; 104. Horizontal plate; 1041. Notch; 1042. Side sliding groove; 105. I-shaped insert; 106. I-shaped slider; 1061. Locking screw; 2. Laser welding assembly; 201. First laser welding head; 202. Connecting frame; 2021. Angled insertion hole; 2022. Angled connecting plate; 20221. Locking screw; 203. Square connecting rod; 2031. Horizontal plate; 20311. Adjusting screw; 204. Second laser welding head; 2041. Angled... 3. Connecting frame; 3. H-beam steel positioning assembly; 301. Inclined frame; 3011. Scale line A; 3012. Adjusting groove; 3013. Threaded sleeve; 3014. F-type connecting frame; 302. U-shaped support frame; 303. Support plate; 3031. Lifting screw; 304. I-beam adjusting block; 3041. I-beam connecting frame; 3042. U-shaped mounting frame; 305. First motor; 306. Sliding clamp; 3061. Clamping screw; 3062. Splined shaft; 3063. Scale line B; 307. Second motor; 308. Electric push rod. Detailed Implementation

[0039] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0040] Example 1: Please refer to Figures 1 to 11 :

[0041] This invention proposes a gantry laser welding machine for H-beams, comprising: a gantry 1, a laser welding assembly 2, and an H-beam positioning assembly 3;

[0042] A control box 101 is installed inside the gantry 1. Drive wheels 102 and auxiliary wheels 103 are fixed at both ends of the bottom, and a set of horizontal plates 104 are inserted into the two sets of horizontal tubes at the top.

[0043] The horizontal plate 104 has notches 1041 at the middle of both ends, and I-shaped inserts 105 are slidably inserted into the notches 1041. Side sliding grooves 1042 are provided on both sides of the notches 1041, and I-shaped sliders 106 are slidably locked in the side sliding grooves 1042.

[0044] The laser welding assembly 2 includes a first laser welding head 201, a connecting frame 202, a square connecting rod 203, and a second laser welding head 204;

[0045] A connecting frame 202 is fixed on the bracket of the first laser welding head 201. A square connecting rod 203 is fixed on the top side of the connecting frame 202. The upper end of the square connecting rod 203 is slidably inserted into the square hole in the middle of the I-shaped insert block 105. A slanted connecting frame 2041 is fixed on the bracket of the second laser welding head 204. One end of the slanted connecting frame 2041 is slidably inserted into the slanted insertion hole 2021 on the connecting frame 202.

[0046] Two sets of H-beam positioning components 3 are provided and located on both sides of the gantry 1 respectively. One set of H-beam positioning components 3 is not shown in the figure and includes a diagonal frame 301, a U-shaped support frame 302, a support plate 303, a first motor 305 and a sliding clamping plate 306.

[0047] The bottom side of the inclined frame 301 is fixed with six sets of U-shaped support frames 302. The inner side is provided with six sets of support plates 303 and six sets of sliding clamps 306. The inner side of the inclined frame 301 is provided with six sets of adjustment grooves 3012. I-shaped adjustment blocks 304 are slidably installed in the adjustment grooves 3012 respectively. I-shaped connecting frames 3041 are connected to the I-shaped adjustment blocks 304 by bolts. The middle set of I-shaped connecting frames 3041 is also connected to the telescopic end of the electric push rod 308. The outer end of the electric push rod 308 is fixed to the bottom side of the inclined frame 301. The outer end of the outermost I-shaped adjustment block 304 is also connected to a U-shaped mounting frame 3042 by bolts. The first motor 305 is fixed on the U-shaped mounting frame 3042.

[0048] In embodiments of the present invention, such as Figure 2 and Figure 5 As shown, an inclined connecting plate 2022 is fixed on the upper side of the inclined insertion hole 2021. A locking screw 20221 is screwed onto the inclined connecting plate 2022 through a threaded hole. The lower end of the locking screw 20221 is tightly attached to the inclined connecting frame 2041. By sliding the inclined connecting frame 2041 and locking it by the locking screw 20221, the second laser welding head 204 comes into contact with the connection between the other set of vertical and horizontal steel plates of the H-beam.

[0049] In embodiments of the present invention, such as Figure 4 and Figure 5 As shown, a horizontal plate 2031 is provided on the square connecting rod 203. An adjusting screw 20311 is screwed onto the horizontal plate 2031 through a threaded hole. The upper end of the adjusting screw 20311 is screwed into the threaded hole in the middle of the I-shaped slider 106. Locking screws 1061 are connected to the bottom side plate of the I-shaped slider 106 through threaded holes. The locking screws 1061 are in close contact with the bottom end surface of the horizontal plate 104, and the bottom side plate of the I-shaped slider 106 does not contact the bottom end surface of the horizontal plate 104. The height of the square connecting rod 203 is adjusted by sliding, and the top of the adjusting screw 20311 is screwed into the threaded hole in the middle of the I-shaped slider 106 for fixation. The position of the I-shaped insert 105 and the I-shaped slider 106 is adjusted by sliding, and the position of the I-shaped slider 106 is locked by the top of the locking screw 1061 being pressed against the bottom of the horizontal plate 104, so that the first laser welding head 201 contacts the connection between a set of vertical steel plates and horizontal steel plates of the H-beam.

[0050] In embodiments of the present invention, such as Figure 7 and Figure 10As shown, the outermost inclined lower end of the inclined frame 301 is provided with a corner clamping structure, and the outer surface of the corner clamping structure is engraved with scale line A3011. The outermost set of support plates 303 has an L-shaped structure, while the other sets of support plates 303 have a flat plate structure. One end of the outermost set of sliding clamping plates 306 is also provided with a corner clamping structure, and the outer surface of the corner clamping structure is engraved with scale line B3063. The I-shaped adjusting block 304 also has a lifting screw 3031 engaged through a threaded hole. The two ends of the lifting screw 3031 are optical shaft structures, and the upper end is rotated through a circular plate. The moving bracket is mounted in the U-shaped frame on the bottom side of the support plate 303. The lower ends are connected to each other by a chain drive. The lower end of the outermost lifting screw 3031 is also connected to the motor shaft of the first motor 304 by a chain drive. By controlling the first motor 305 to drive the lifting screw 3031 to rotate, and under the engagement with the threaded hole in the middle of the I-shaped adjusting block 304, the height of the support plate 303 is adjusted. The height of the horizontal steel plate is adjusted by using the scale line A3011 and scale line B3063 so that the horizontal steel plate is in the middle of the vertical steel plate of the H-beam.

[0051] In embodiments of the present invention, such as Figure 7 and Figure 11 As shown, the inclined upper end of the inclined frame 301 is also provided with a threaded sleeve 3013, and F-type connecting brackets 3014 are fixed to the upper end respectively. Clamping screws 3061 are threadedly engaged within the threaded sleeve 3013. The inclined lower end of the clamping screw 3061 has a smooth shaft structure and is rotatably clamped to the U-shaped frame outside the sliding clamping plate 306 via a circular plate. A spline groove is provided in the middle of the clamping screw 3061, and a spline shaft 3062 is slidably inserted into the spline groove. The spline shaft 3062... The outer end is a shaft structure and is connected to each other by chain drive. The second motor 307 is fixed inside the outermost F-type connecting frame 3014, and the outermost spline shaft 3062 is also connected to the motor shaft of the second motor 307 by chain drive. By controlling the second motor 307 and spline shaft 3062 to drive the clamping screw 3061 to rotate, and under the engagement with the threaded sleeve 3013, the inner end of the sliding clamp 306 is tightly attached to the vertical steel plate of the H-beam for positioning and clamping.

[0052] The specific usage and function of this embodiment are as follows:

[0053] In this invention, a set of vertical steel plates of the H-beam to be welded is placed into the inclined lower end of the inclined frame 301, and one end of the vertical steel plate is engaged with the outermost corner structure of the inclined frame 301. Then, according to the width of the horizontal steel plate of the H-beam, the electric push rod 308 is controlled to push the I-beam connecting frame 3041, and the position of the I-beam adjusting block 304 is adjusted so that the support plate 303 is in the middle of the horizontal steel plate. The horizontal steel plate is placed on the support plate 303, and one end of the horizontal steel plate is engaged with the L-shaped structure of the outermost support plate 303. By controlling... The first motor 305 drives the lifting screw 3031 to rotate, and under the engagement with the threaded hole in the middle of the I-shaped adjusting block 304, the height of the support plate 303 is adjusted. The height of the horizontal steel plate is adjusted by using scale line A3011 and scale line B3063, so that the horizontal steel plate is in the middle of the vertical steel plate of the H-beam. By controlling the second motor 307 and spline shaft 3062 to drive the clamping screw 3061 to rotate, and under the engagement with the threaded sleeve 3013, the inner end of the sliding clamp 306 is pressed tightly against the vertical steel plate of the H-beam for positioning and clamping.

[0054] The height of the square connecting rod 203 is adjusted by sliding, and the top of the adjusting screw 20311 is screwed into the threaded hole in the middle of the I-shaped slider 106 for fixation. The position of the I-shaped insert 105 and the I-shaped slider 106 is adjusted by sliding, and the position of the I-shaped slider 106 is locked by the top of the locking screw 1061 against the bottom of the horizontal plate 104, so that the first laser welding head 201 contacts the connection between a set of vertical steel plates and horizontal steel plates of the H-beam. The oblique connecting frame 2041 is slid and locked by the locking screw 20221 against the oblique connecting frame 2041, so that the second laser welding head 204 contacts the connection between another set of vertical steel plates and horizontal steel plates of the H-beam. The gantry 1 is moved on the track by the drive wheel 102, so that the first laser welding head 201 and the second laser welding head 204 simultaneously weld the connection between the two sets of vertical steel plates and horizontal steel plates of the H-beam.

[0055] The following points should be noted in this article:

[0056] 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0057] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0058] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A gantry laser welding machine for H-beams, comprising: The gantry (1), the laser welding assembly (2), and the H-beam positioning assembly (3); A control box (101) is installed inside the gantry (1), and a drive wheel (102) and an auxiliary wheel (103) are fixed at the bottom ends respectively. A set of horizontal plates (104) are inserted into the two sets of horizontal tubes at the top. The feature is that the horizontal plate (104) has notches (1041) at the middle of both ends, and I-shaped inserts (105) are slidably inserted into the notches (1041). Side sliding grooves (1042) are provided on both sides of the notches (1041), and I-shaped sliders (106) are slidably locked in the side sliding grooves (1042). The laser welding assembly (2) includes a first laser welding head (201), a connecting frame (202), a square connecting rod (203), and a second laser welding head (204). A connecting frame (202) is fixed on the bracket of the first laser welding head (201), and a square connecting rod (203) is fixed on the top side of the connecting frame (202). The upper end of the square connecting rod (203) is slidably inserted into the square hole in the middle of the I-shaped insert (105). A slanted connecting frame (2041) is fixed on the bracket of the second laser welding head (204), and one end of the slanted connecting frame (2041) is slidably inserted into the slanted insertion hole (2021) on the connecting frame (202). The H-beam steel positioning assembly (3) includes a diagonal frame (301), a U-shaped support frame (302), a support plate (303), a first motor (305), and a sliding clamp (306). The bottom side of the inclined frame (301) is fixed with six sets of U-shaped support frames (302), and the inner side is provided with six sets of support plates (303) and six sets of sliding clamps (306). The inner side of the inclined frame (301) is provided with six sets of adjustment grooves (3012), and I-shaped adjustment blocks (304) are slidably installed in the adjustment grooves (3012). I-shaped connecting frames (3041) are bolted between the I-shaped adjustment blocks (304). The I-shaped connecting frames (3041) of the middle set are also connected to the telescopic end of the electric push rod (308). The outer end of the electric push rod (308) is fixed to the bottom side of the inclined frame (301). The outer end of the outermost I-shaped adjustment block (304) is also bolted to a U-shaped mounting frame (3042). The first motor (305) is fixed on the U-shaped mounting frame (3042).

2. The gantry laser welding machine for H-beams according to claim 1, characterized in that: An inclined connecting plate (2022) is fixed on the upper side of the inclined insertion hole (2021). A locking screw (20221) is screwed onto the inclined connecting plate (2022) through a threaded hole. The lower end of the locking screw (20221) is tightly attached to the inclined connecting frame (2041).

3. The gantry laser welding machine for H-beams according to claim 1, characterized in that: The square connecting rod (203) is provided with a horizontal plate (2031), and an adjusting screw (20311) is screwed onto the horizontal plate (2031) through a threaded hole. The upper end of the adjusting screw (20311) is screwed into the threaded hole in the middle of the I-shaped slider (106).

4. The gantry laser welding machine for H-beams according to claim 1, characterized in that: The bottom side plate of the I-shaped slider (106) is connected to a locking screw (1061) through a threaded hole. The locking screw (1061) is in close contact with the bottom surface of the horizontal plate (104), and the bottom side plate of the I-shaped slider (106) does not contact the bottom surface of the horizontal plate (104).

5. A gantry laser welding machine for H-beams according to claim 1, characterized in that: The outermost inclined frame (301) has a corner structure at its lower outermost end, and the outer surface of the corner is engraved with scale line A (3011). The outermost set of trays (303) has an L-shaped structure, while the other sets of trays (303) have a flat structure. The outermost set of sliding clamps (306) also has a corner structure at one end, and the outer surface of the corner is engraved with scale line B (3063).

6. A gantry laser welding machine for H-beams according to claim 1, characterized in that: The I-shaped adjusting block (304) also has a lifting screw (3031) engaged through a threaded hole. The two ends of the lifting screw (3031) are optical shaft structures. The upper end is rotated and clamped in the U-shaped frame on the bottom side of the support plate (303) through a circular plate. The lower ends are connected to each other through a chain drive. The lower end of the outermost lifting screw (3031) is also connected to the motor shaft of the first motor (304) through a chain drive.

7. A gantry laser welding machine for H-beams according to claim 1, characterized in that: The inclined frame (301) is provided with a threaded sleeve (3013) at the middle of its inclined upper end, and F-type connecting brackets (3014) are fixed at the upper end respectively. The threaded sleeve (3013) is provided with a clamping screw (3061) through thread engagement. The inclined lower end of the clamping screw (3061) is an optical axis structure and is rotated and clamped in the U-shaped frame outside the sliding clamp (306) by a circular plate.

8. A gantry laser welding machine for H-beams according to claim 7, characterized in that: The clamping screw (3061) has a spline groove in the middle, and a spline shaft (3062) is slidably inserted in the spline groove. The outer end of the spline shaft (3062) is a smooth shaft structure and is connected to each other by a chain drive. The outermost F-type connecting frame (3014) has a second motor (307) fixed inside, and the outermost spline shaft (3062) is also connected to the motor shaft of the second motor (307) by a chain drive.

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