Angle steel laser cutting clamp for galvanized angle steel tower

Abstract

The invention discloses a galvanized angle steel tower angle steel laser cutting clamp, and relates to the technical field of angle steel laser cutting, the galvanized angle steel tower angle steel laser cutting clamp comprises a cutting machine tool and a cutting clamping mechanism, the cutting machine tool is provided with a feeding station, a cutting station and a discharging station from left to right, the feeding station is provided with a feeding clamping mechanism for limiting the feeding end, and the cutting station is provided with a discharging clamping mechanism for limiting the discharging end; the cutting station is provided with a cutting clamping mechanism, and a driving mechanism is arranged on the cutting clamping mechanism. A rotary drive on the feeding clamping mechanism drives the multiple pieces of angle steel to rotate, a single laser cutting head is used for completing continuous cutting of the multiple pieces of angle steel, the production cost is saved, feeding and feeding are carried out according to the time for waiting for cutting operation of the angle steel above, the cutting efficiency is improved in an alternate feeding and alternate cutting mode, and the production efficiency is improved. And meanwhile, the stability is enhanced through cooperation of the feeding clamping mechanism and the cutting clamping mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of angle steel laser cutting, in particular to a laser cutting fixture for galvanized angle steel tower angle steel. Background Art

[0002] Galvanized angle steel tower is a type of tower widely used in power transmission, communication base stations and other structures that require high weather resistance and corrosion resistance. This type of tower mainly uses hot-dip galvanized angle steel as its main construction material to enhance its corrosion resistance and extend its service life. In order to meet specific design requirements and facilitate transportation and installation, the angle steel usually needs to be cut and segmented using a laser before construction.

[0003] At present, the steps of angle steel laser cutting segmentation usually include loading and positioning, laser cutting and unloading and sorting. During the loading and positioning process, a fixture is used to position the angle steel to ensure its stability, and the feeding and rotation paths of the feeding equipment are coordinated with the moving path of the laser head for cutting. Loading and cutting are divided into single-piece operation and multiple-piece simultaneous operation. When operating a single piece, a fixture is used to clamp the loading position of the angle steel at a single point, or to clamp the loading position and unloading position at two points. The stability of the cutting position needs to be improved when clamping at a single point, and the stability is improved when clamping at two points, but the repeated loosening and clamping of the fixture will affect the cutting efficiency. When multiple pieces are arranged, multiple laser heads need to be set for cutting, or an independent rotation drive needs to be set for each angle steel, which increases production costs. At the same time, batch loading needs to be carried out only after all the multiple angle steels of the same batch are cut, which takes up the time of the cutting operation, is not convenient for improving the continuous operation capability of the equipment, and affects the cutting efficiency.

[0004] Therefore, in order to improve cutting stability and cutting efficiency, the present invention provides a galvanized angle steel tower angle steel laser cutting fixture. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a laser cutting fixture for galvanized angle steel tower angle steel.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a galvanized angle steel tower angle steel laser cutting fixture, including a cutting machine and a cutting clamping mechanism, the cutting machine is provided with a loading station, a cutting station and an unloading station from left to right, the cutting station is symmetrically provided with two cutting clamping mechanisms on the left and right, and a driving mechanism is provided on the cutting clamping mechanism.

[0007] The cutting and clamping mechanism includes a main clamping assembly for externally limiting the cutting points of the two angle steels, and the main clamping assembly is provided with an auxiliary clamping assembly for internally supporting the cutting points of the two angle steels; the main clamping assembly includes a support frame installed on the cutting station, and the upper center of the support frame is symmetrically and slidingly connected to an L-shaped frame, and the two ends of the L-shaped frame are rotatably connected to the side away from the support frame with clamping rollers; the auxiliary clamping assembly includes an inner support plate slidably connected to the upper part of the support frame, and the internal symmetrical elastic sliding connection of the inner support plate is two T-shaped seats, and the two ends of the horizontal section of the T-shaped seat are symmetrically and fixedly connected to the L-shaped support blocks.

[0008] The driving mechanism includes an avoidance component for supporting and avoiding the angle steel at the cutting station and a driving component for driving the avoidance component and the auxiliary clamping component; the avoidance component includes a connecting plate fixedly connected between two inner support plates, and the side walls of the connecting plate are symmetrically elastically slidably connected with an avoidance plate parallel to the inner support plate.

[0009] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the loading station is provided with a loading clamping mechanism for limiting the loading end, and the loading clamping mechanism includes a rotating disk rotatably connected to the loading station, and a rectangular loading port is opened in the middle of the rotating disk, and an isolation plate is fixedly connected to the loading port along the diagonal direction, and four limiting rollers are provided on the right side wall of the rotating disk in the circumferential direction, and the limiting rollers are radially slidably connected through an electric slider.

[0010] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the support frame can be detachably installed on the cutting station, and the upper part of the support frame is a circular ring member with an annular slide rail on the inner ring wall, and the L-shaped frame is slidably connected to the annular slide rail.

[0011] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the inner support plate is slidably connected to the annular slide rail, and the inner support plate separates the two L-shaped frames. The two T-shaped seats are fixedly connected to a wedge block 1 on the side close to each other, and the side of the wedge block 1 away from the T-shaped seat is inclined.

[0012] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the end of the vertical section of the T-shaped seat is fixedly connected with a wedge block 2, the three ends of the T-shaped seat slide through the side wall of the inner support plate, and the wedge block 2 is adapted to the inner right angle of the angle steel.

[0013] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, multiple chip withdrawal grooves are evenly opened on the avoidance plate from left to right, and the side walls of the avoidance plate close to the inner support plate are fixedly connected with wedge blocks three, and the side walls of the avoidance plate away from the avoidance plate are inclined.

[0014] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the inner support plate is connected to a pushing piece by spring three for sliding left and right. The side of the pushing piece close to wedge block three is composed of two inclined surfaces in an arrow shape that is compatible with wedge block three, and the side of the pushing piece close to wedge block one is composed of two inclined surfaces in an inclined shape that is compatible with the two wedge blocks one.

[0015] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the driving assembly includes a fixing ring, and the two support frames are fixedly connected to each other on one side with a fixing ring, and the fixing ring is coaxially arranged with the circular ring member, and two wedge blocks four are arranged on the upper part of the inner ring wall of the fixing ring.

[0016] In the above-mentioned galvanized angle steel tower angle steel laser cutting fixture, the side of the wedge block four away from the fixed ring is inclined, and the opposite sides of the two avoidance plates are symmetrically fixedly connected with push rods arranged parallel to the avoidance plates, and the side of the push rods away from the avoidance plates is inclined to match the wedge block four.

[0017] Compared with the existing technology, the advantages of the present invention are: 1. A rotary drive on the feeding and clamping mechanism drives multiple angle steels to rotate, and a single laser cutting head can be used to complete the continuous cutting of multiple angle steels, saving production costs. The time waiting for the cutting operation of the upper angle steel is used for feeding and loading, and the cutting efficiency is improved by alternating feeding and alternating cutting. At the same time, the stability is enhanced by the cooperation of the feeding clamping mechanism and the cutting clamping mechanism.

[0018] 2. Through the cooperation of the feeding clamping mechanism and the cutting clamping mechanism, multiple angle steels are clamped at the feeding and cutting positions during feeding, thereby improving the stability during feeding; the feeding clamping mechanism limits the loading position, and the limiting roller and the isolation plate cooperate to achieve the limiting effect. The cutting clamping mechanism limits the cutting position. The outer right-angle side wall of the angle steel is in contact with the clamping roller, and the two right-angle ends of the angle steel are in contact with the inner support plate. The clamping roller and the inner support plate form a relatively stable triangular support structure.

[0019] 3. The cutting clamping mechanism and the driving mechanism are coordinated to improve the stability during cutting. The avoidance component flexibly avoids the laser cutting area. The auxiliary clamping component is driven by the driving mechanism to change. The L-shaped support block provides stable internal support for the two sides of the angle steel, and the wedge block provides stable internal support for the inner right angle of the angle steel. It cooperates with the external support of the main clamping component to improve stability. The flexibly adjustable avoidance component and auxiliary clamping component can reduce the impact on cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 It is a partial structural diagram of the cutting clamping mechanism and the driving mechanism.

[0022] Figure 2 A schematic diagram of the overall structure.

[0023] Figure 3 It is a structural diagram of the feeding and clamping mechanism.

[0024] Figure 4 A left side schematic diagram of the partial structure of the main clamping assembly and the auxiliary clamping assembly.

[0025] Figure 5 Schematic diagram of the partial structure of the main clamping assembly and the drive assembly.

[0026] Figure 6 It is a partial structural diagram of the driving mechanism.

[0027] Figure 7 Schematic diagram of the partial cross-sectional structure of the connecting plate.

[0028] Figure 8 Schematic diagram of the partial structure of the avoidance component and the drive component.

[0029] Figure 9 Schematic diagram of the changes before and after the push rod displacement.

[0030] Figure 10 It is a partial cross-sectional structural diagram of the inner support plate and T-shaped seat.

[0031] Figure 11 It is a structural diagram of the rotating disk, limiting roller and isolation plate.

[0032] In the figure: 1. Cutting machine tool; 2. Feeding clamping mechanism; 21. Rotating disk; 22. Limiting roller; 23. Isolation plate; 3. Cutting clamping mechanism; 31. Main clamping assembly; 311. Support frame; 312. L-shaped frame; 313. Clamping roller; 32. Auxiliary clamping assembly; 321. Inner support plate; 322. T-shaped seat; 323. Wedge block one; 324. L-shaped support block; 325. Wedge block two; 4. Driving mechanism; 41. Avoidance assembly; 411. Connecting plate; 412. Avoidance plate; 413. Chip groove; 414. Wedge block three; 415. Pushing member; 42. Driving assembly; 421. Fixing ring; 422. Wedge block four; 423. Push rod. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 2 A laser cutting fixture for galvanized angle steel tower angle steel includes a cutting machine 1 and a cutting clamping mechanism 3. The cutting machine 1 is provided with a loading station, a cutting station and an unloading station from left to right. The loading station is provided with a loading clamping mechanism 2 for limiting the loading end. The cutting station is symmetrically provided with two cutting clamping mechanisms 3 on the left and right, and a driving mechanism 4 is provided on the cutting clamping mechanism 3.

[0035] A feeding device is provided on the left side of the cutting machine 1 (existing equipment is selected and will not be described in detail here). Two angle steels are fed and loaded through the feeding device and loaded at the loading station. The angle steels are driven by the feeding device to gradually move to the right for loading. A laser cutting device (not shown in the figure, this equipment is existing equipment and will not be described in detail here) is provided at the upper position between the two cutting clamping mechanisms 3 for cutting operations. The cut angle steel segment is pushed to the right by the loading of the previous segment and is unloaded at the unloading station.

[0036] Two long sections of angle steel are synchronously clamped and limited by the cutting clamping mechanism 3 at the cutting station. The two long sections of angle steel are continuously and uninterruptedly cut, loaded and unloaded alternately by rotation. The driving mechanism 4 drives the cutting clamping mechanism 3 to flexibly change between movable support and stable support, reducing the resistance during feeding and loading while increasing the stability of clamping during laser cutting.

[0037] Reference Figures 2 to 3 The feeding clamping mechanism 2 includes a rotating disk 21 rotatably connected to the feeding station. A rectangular feeding port is opened in the middle of the rotating disk 21. An isolation plate 23 is fixedly connected to the feeding port along the diagonal direction. Four limiting rollers 22 are provided on the right side wall of the rotating disk 21 along the circumferential direction. The limiting rollers 22 are radially slidably connected through an electric slider.

[0038] When two long angle steel sections are loaded, the limiting roller 22 is driven by the electric slider to approach the corresponding angle steel until the two adjacent limiting rollers 22 cooperate with the side walls of the isolation plate 23. The two limiting rollers 22 on the same side separated by the isolation plate 23 limit the position of the same angle steel. The rotating disk 21 can drive the two long angle steel sections limited by the limiting rollers 22 and the isolation plate 23 to rotate circumferentially, so as to facilitate continuous and uninterrupted cutting operations. The driving method of the rotating disk 21 adopts the existing technology, for example, Figure 11 As shown, a gear ring can be provided on the peripheral side of the rotating disk 21, and the gear ring is driven to rotate by a gear connected to the output shaft of an external motor.

[0039] Reference Figures 1 to 2The cutting and clamping mechanism 3 includes a main clamping component 31, which is used to simultaneously limit the external position of the cutting parts of the two angle steels. The main clamping component 31 is provided with an auxiliary clamping component 32 that cooperates with the main clamping component 31. The auxiliary clamping component 32 is used to simultaneously provide internal support for the cutting parts of the two angle steels.

[0040] Reference Figures 4 and 5 The main clamping assembly 31 includes a support frame 311 that can be detachably installed on the cutting station. The upper part of the support frame 311 is a circular ring member with an annular slide rail on the inner ring wall. An L-shaped frame 312 is symmetrically connected to the center of the annular slide rail. The two ends of the L-shaped frame 312 are away from the side of the circular ring member and are connected to multiple clamping rollers 313 that rotate evenly from left to right.

[0041] Reference Figure 4 、 Figure 6 、 Figure 7 and Figure 10 The auxiliary clamping assembly 32 includes an inner support plate 321 slidably connected to the annular slide rail, and the inner support plate 321 separates the two L-shaped frames 312. The interior of the inner support plate 321 is symmetrically slidably connected to a T-shaped seat 322 through a spring. The two T-shaped seats 322 are fixedly connected to a wedge block 1 323 on the side close to each other, and the wedge block 1 323 is inclined away from the T-shaped seat 322; the two ends of the horizontal section of the T-shaped seat 322 are symmetrically fixedly connected to the L-shaped support blocks 324, and the end of the vertical section of the T-shaped seat 322 is fixedly connected to the wedge block 2 325. The three ends of the T-shaped seat 322 slide through the side wall of the inner support plate 321, and the wedge block 2 325 is adapted to the inner right angle of the angle steel.

[0042] Reference Figure 1 and Figure 6 The driving mechanism 4 includes an avoidance component 41 arranged on the auxiliary clamping component 32. The avoidance component 41 is used to support and flexibly avoid the angle steel at the cutting station. The main clamping component 31 is provided with a driving component 42. The driving component 42 is used to drive the avoidance component 41 and the auxiliary clamping component 32 to perform avoidance and support adjustment.

[0043] Reference Figures 6 to 10The avoidance assembly 41 includes a connecting plate 411, a connecting plate 411 is fixedly connected between the two inner support plates 321, and the side wall of the connecting plate 411 is symmetrically slidably connected to a avoidance plate 412 parallel to the inner support plate 321 through a spring 2 (not shown in the figure); a plurality of chip withdrawal grooves 413 are evenly opened on the avoidance plate 412 from left to right, and the side walls of the avoidance plate 412 close to the inner support plate 321 are fixedly connected to wedge blocks 314, and the wedge blocks 314 are inclined away from the side walls of the avoidance plate 412; the inner support plate 321 is connected to a pushing piece 415 for sliding left and right through a spring 3, and the side of the pushing piece 415 close to the wedge block 314 is composed of two inclined surfaces forming an arrow shape that matches the wedge block 314, and the side of the pushing piece 415 close to the wedge block 1 323 is composed of two inclined surfaces forming an inclined shape that matches the two wedge blocks 1 323.

[0044] Reference Figures 6 to 9 The driving assembly 42 includes a fixing ring 421, and the two supporting frames 311 are fixedly connected to the sides close to each other with a fixing ring 421. The fixing ring 421 is coaxially arranged with the circular ring member, and two wedge blocks 422 are arranged on the upper part of the inner ring wall of the fixing ring 421; the wedge block 422 is inclined on the side away from the fixing ring 421, and the two avoidance plates 412 are fixedly connected on the opposite sides thereof with push rods 423 arranged parallel to the avoidance plates 412 in a symmetrical manner. The push rods 423 are inclined on the side away from the avoidance plates 412 to match the wedge block 422.

[0045] When two long sections of angle steel are fed into the cutting station, the outer right-angled side wall of the angle steel is in contact with the clamping roller 313, and the clamping roller 313 is in rolling contact with the side wall of the angle steel, reducing the resistance generated during the feeding process. The two right-angled ends of the angle steel are in contact with the inner support plate 321, and the clamping roller 313 and the inner support plate 321 form a relatively stable triangular support structure, which is convenient for maintaining the stability of the angle steel during the feeding process.

[0046] After the two long sections of angle steel are moved to the specified length, the cutting operation is carried out at the cutting station. The laser cutting equipment performs a reciprocating cutting action and an up and down movement to avoid the rotating angle steel. The speed is fast and there is no redundant action, which improves the cutting efficiency. The rotating disk 21 drives the angle steel to rotate counterclockwise to cut the two angle steels alternately. After the angle steel is rotated until the right-angle side is perpendicular to the laser cutting head, it is at the correct cutting angle.

[0047] by Figure 9For example, the laser cutting head moves from front to back above the angle steel to cut the right-angled side of the angle steel on the upper side. After the cutting is completed, the angle steel rotates 90 degrees counterclockwise, and the laser cutting head moves from back to front to cut the other right-angled side of the angle steel after it is flipped. At this point, the cutting operation of the angle steel is completed, and it continues to rotate 90 degrees counterclockwise and cuts the other angle steel through the above action. When the angle steel that has been cut first is flipped to the lower position, the feeding equipment corresponding to this angle steel uses the time waiting for the cutting operation of the upper angle steel to feed and load the material. The efficiency of cutting is improved by alternating loading and cutting, and the angle steel section that has been cut is pushed to unload the material during loading. It should be noted that the cut part of the angle steel can be cooled during the flipping process. Feeding and loading after cooling can reduce the occurrence of adhesion and burrs. In order to adapt to the changes in the cutting position and the loading and unloading positions of the angle steel, the feeding equipment can rotate with the rotation of the corresponding angle steel.

[0048] When the angle steel feeding position rotates, the L-shaped frame 312 and the inner support plate 321 of the cutting station slide on the annular slide rail of the support frame 311, and the driving mechanism 4 is displaced as a whole.

[0049] The initial state of the avoidance plate 412 is to extend out of the connecting plate 411, and can be in contact with the inner support plates 321 on both sides to provide support for the cutting position of the angle steel. When cutting, the push rod 423 rotates and moves toward the wedge block 422. When the push rod 423 rotates upward until the inclined surface of the push rod 423 is in contact with the inclined surface of the wedge block 422, it is gradually pushed and drives the corresponding avoidance plate 412 at the upper part to slide into the connecting plate 411, so as to Figure 9 For example, after sliding, the avoidance plate 412 is partially retracted into the connecting plate 411 to avoid the laser cutting area and reduce the thermal impact of the laser cutting on the avoidance plate 412. At the same time, the debris generated during cutting slides down through the inclined surfaces of the avoidance plate 412 and the connecting plate 411, and is then discharged downward through the gap between the chip withdrawal groove 413 on the lower avoidance plate 412 and the angle steel.

[0050] When the cam 324 is in the forward direction, the cam 324 is in the forward direction, and the cam 324 is in the forward direction, so that the cam 324 can move in the reverse direction, thereby preventing the cam 324 from sliding outward and the cam 324 from sliding in the reverse direction.

[0051] The specific operating steps of this galvanized angle steel tower angle steel laser cutting fixture are as follows: two angle steels are fed and loaded through the feeding equipment. When the two long sections of angle steel are fed at the cutting station, the clamping roller 313 and the inner support plate 321 form a relatively stable triangular support structure to facilitate maintaining the stability of the angle steel during the feeding process. A laser cutting device is set above the two cutting clamping mechanisms 3 for cutting operations. During cutting, the connecting plate 411 avoids the laser cutting area, the L-shaped support block 324 provides stable internal support for the two sides of the angle steel, and the wedge block 2 325 provides stable internal support for the inner right angle of the angle steel to improve the stability during cutting. At the same time, the two long sections of angle steel are continuously and uninterruptedly cut, loaded and unloaded alternately by rotation.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser cutting fixture for galvanized angle steel tower angle steel, comprising a cutting machine and a cutting clamping mechanism, characterized in that: The cutting machine is provided with a loading station, a cutting station and an unloading station from left to right. The cutting station is symmetrically provided with two cutting clamping mechanisms on the left and right, and a driving mechanism is provided on the cutting clamping mechanism. The cutting and clamping mechanism includes a main clamping assembly for externally limiting the cutting portions of the two angle steels, and an auxiliary clamping assembly for internally supporting the cutting portions of the two angle steels is provided on the main clamping assembly; The main clamping assembly includes a support frame installed on the cutting station, an L-shaped frame is symmetrically slidably connected to the upper center of the support frame, and the two ends of the L-shaped frame are rotatably connected to the clamping rollers on the side away from the support frame; The auxiliary clamping assembly includes an inner support plate slidably connected to the upper part of the support frame, and the inner part of the inner support plate is symmetrically elastically slidably connected to two T-shaped seats, and the two ends of the horizontal section of the T-shaped seat are symmetrically fixedly connected to L-shaped support blocks; The driving mechanism includes an avoidance component for supporting and avoiding the angle steel at the cutting station and a driving component for driving the avoidance component and the auxiliary clamping component; The avoidance component comprises a connecting plate fixedly connected between two inner support plates, and the side walls of the connecting plate are symmetrically and elastically slidably connected with avoidance plates parallel to the inner support plates.

2. A galvanized angle steel tower angle steel laser cutting fixture according to claim 1, characterized in that: The loading station is provided with a loading clamping mechanism for limiting the loading end. The loading clamping mechanism includes a rotating disk rotatably connected to the loading station, and a rectangular loading port is opened in the middle of the rotating disk. An isolation plate is fixedly connected to the loading port along the diagonal direction. Four limiting rollers are provided on the right side wall of the rotating disk in the circumferential direction, and the limiting rollers are radially slidably connected through an electric slider.

3. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 1, characterized in that: The support frame is detachably mounted on the cutting station, and the upper portion of the support frame is a circular ring member with an annular slide rail formed on the inner ring wall, and the L-shaped frame is slidably connected to the annular slide rail.

4. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 3, characterized in that: The inner support plate is slidably connected to the annular slide rail, and the inner support plate separates the two L-shaped frames. The sides of the two T-shaped seats close to each other are fixedly connected with wedge blocks 1, and the side of the wedge blocks 1 away from the T-shaped seats is inclined.

5. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 4, characterized in that: The end of the vertical section of the T-shaped seat is fixedly connected with a wedge block 2, and the three ends of the T-shaped seat slide through the side wall of the inner support plate, and the wedge block 2 is adapted to the inner right angle of the angle steel.

6. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 4, characterized in that: The avoidance plate is evenly provided with a plurality of chip withdrawal grooves from left to right, and both side walls of the avoidance plate close to the inner support plate are fixedly connected with wedge blocks three, and the side walls of the avoidance plate away from the wedge blocks three are inclined.

7. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 6, characterized in that: The inner support plate is connected to a pushing piece by spring three for sliding left and right. The side of the pushing piece close to wedge block three is composed of two inclined surfaces forming an arrow shape that matches wedge block three. The side of the pushing piece close to wedge block one is composed of two inclined surfaces forming an inclined shape that matches the two wedge blocks one.

8. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 4, characterized in that: The driving assembly includes a fixing ring, and the sides of the two support frames close to each other are fixedly connected with a fixing ring, and the fixing ring is coaxially arranged with the circular ring member, and two wedge blocks four are arranged on the upper part of the inner ring wall of the fixing ring.

9. The laser cutting fixture for galvanized angle steel tower angle steel according to claim 8, characterized in that: The side of the wedge block four away from the fixed ring is inclined, and the opposite sides of the two avoidance plates are fixedly connected with push rods arranged parallel to the avoidance plates in a symmetrical manner, and the side of the push rods away from the avoidance plates is inclined to match the wedge block four.

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