Numerical control welding tool for angle steel cross arm

Abstract

The utility model relates to the technical field of angle steel cross arm welding, and provides a kind of angle steel cross arm numerical control welding tool, including placing table, the inside sliding connection of placing table has slide bar;Adjacent the slide bar between fixedly connected with support block;The first spring is fixedly connected between the placing table and support block;The inside rotation of support block is connected with first runner, and two The first runner is correspondingly set;The sidewall of placing table is fixedly connected with first limiting cylinder;The bottom of placing table is fixedly connected with first fixed block;The top of placing table is provided with clamping assembly;The utility model is by setting clamping assembly and is clamped in the top of placing table with angle steel, to provide convenience for the welding work of staff, set up multiple positions movable first runner, reduce the friction coefficient between angle steel and tool, it is favorable to avoid angle steel wearing tool.

Description

Technical Field

[0001] This utility model relates to the field of angle steel crossarm welding technology, specifically to a CNC welding fixture for angle steel crossarms. Background Technology

[0002] Angle steel, also known as angle iron, is a long strip of steel with two sides perpendicular to each other, forming an angle. Angle steel is also divided into equal-sided angle steel and unequal-sided angle steel. The crossarm is an angle iron that is fixed horizontally at the top of the utility pole. It has porcelain insulators on it and is used to support the overhead power lines. The crossarm is an important component of the pole.

[0003] Existing CNC welding fixtures for angle steel crossarms are mostly used in conjunction with automated angle steel feeding devices. Whenever the angle steel reaches the predetermined position of the fixture, the fixture will fix the angle steel in that position by clamping. However, during this process, the angle steel will wear against the surface of the fixture, which can easily cause surface wear.

[0004] Therefore, this utility model provides a CNC welding fixture for angle steel crossarms. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a CNC welding fixture for angle steel crossarms, which solves the technical problems in the prior art.

[0006] According to one aspect, at least one embodiment of this utility model provides a CNC welding fixture for angle steel crossarms, including a placement table, a sliding rod slidably connected inside the placement table, and multiple sliding rods being arranged correspondingly; a support block fixedly connected between adjacent sliding rods; a first spring fixedly connected between the placement table and the support block, and the first spring being arranged at a position corresponding to the sliding rod; a first rotating wheel rotatably connected inside the support block, and two first rotating wheels being arranged correspondingly; a first limiting cylinder fixedly connected to the side wall of the placement table, and multiple first limiting cylinders being arranged at a position corresponding to the sliding rod; a first fixing block fixedly connected to the bottom of the placement table; and a clamping assembly provided on the top of the placement table; through the above structure, the clamping assembly clamps the angle steel on the top of the placement table, thereby providing convenience for the welding work of the workers; and the multiple movable first rotating wheels reduce the coefficient of friction between the angle steel and the fixture, which helps to avoid wear of the fixture by the angle steel.

[0007] Preferably, the clamping assembly includes a first frame; a hydraulic cylinder is fixedly connected to the side wall of the first frame, and a plurality of hydraulic cylinders are arranged correspondingly; an L-shaped pressure block is fixedly connected to the output end of the hydraulic cylinder; a rotating block is rotatably connected to the bottom of the L-shaped pressure block, and a second spring is fixedly connected between the L-shaped pressure block and the rotating block; a second rotating wheel is rotatably connected inside the rotating block; with the above structure, the rotatable second rotating wheel is set to contact the side wall of the angle steel, thereby preventing the angle steel from falling off during transportation; the hydraulic cylinder and the L-shaped pressure block are set to press against the top of the angle steel, thereby clamping the angle steel between the placement platform and the L-shaped pressure block, which helps to prevent the angle steel from moving during the welding process.

[0008] Preferably, a motor is fixedly connected to the bottom of the placement platform, and two motors are arranged correspondingly; a first gear is fixedly connected to the output end of the motor; a toothed block meshes on the side wall of the first gear, and the first gear and the toothed block are rotatably connected inside the placement platform; through the above structure, the position of the toothed block is adjusted by the motor, thereby controlling the contact relationship between the toothed block and the angle steel, preventing the angle steel from sliding during the welding process, and improving the angle steel positioning capability of the tooling.

[0009] Preferably, a first magnetic block is provided at the bottom of the L-shaped pressure block, and a first screw is provided between the L-shaped pressure block and the first magnetic block; a second magnetic block is provided at the top of the rotating block, and a first screw is provided between the rotating block and the second magnetic block; through the above structure, the first magnetic block and the second magnetic block apply magnetic force between the L-shaped pressure block and the rotating block, thereby preventing the rotating block from rotating under low stress, which is beneficial to improving the stability of the tooling and reducing component vibration.

[0010] Preferably, a limiting plate is fixedly connected to the bottom of the first frame; a second limiting cylinder is fixedly connected to the side wall of the limiting plate, and multiple second limiting cylinders are arranged in a corresponding manner; a limiting rod is fixedly connected to the side wall of the L-shaped pressure block; through the above structure, the second limiting cylinder is set to restrict the output end of the hydraulic cylinder and the limiting rod, thereby preventing the L-shaped pressure block from shifting during the clamping process, improving the stability of the tooling, and helping to extend the service life of the tooling.

[0011] Preferably, a pressure plate is provided on the side wall of the toothed block; a second screw is provided between the pressure plate and the toothed block; the second screw is made of plastic; through the above structure, the pressure plate is fixed by the second screw, so that the pressure plate replaces the toothed block in contacting the angle steel, and the flexibility of the plastic material is utilized to prevent the angle steel from deforming under stress.

[0012] Preferably, a fixed platform is fixedly connected to the side wall of the first frame; a duct is fixedly connected to the side wall of the fixed platform; a second frame is fixedly connected to the inner side wall of the duct, and a fan is fixedly connected to the side wall of the second frame; with the above structure, the duct and the second frame are fixed with a fan, thereby changing the direction of airflow by means of the fan, which is conducive to the discharge of harmful gases and the protection of the health of the staff.

[0013] Preferably, a second fixing block is fixedly connected between the placement platform and the fixing platform; through the above structure, the second fixing block stabilizes the placement platform, which helps to prevent the placement platform from shifting under stress and improves the stability of the tooling.

[0014] Preferably, a guide block is fixed to the side wall of the placement platform; the above structure, with the guide block guiding the angle steel, helps to prevent the angle steel from falling when it reaches the side end of the tooling.

[0015] Preferably, a flange is fixed to the side wall of the ventilation duct; through the above structure, the flange allows the ventilation duct to be connected to an external pipeline, which is beneficial for the discharge of harmful gases generated during the welding process and for the protection of personnel safety.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. By setting up a clamping assembly to clamp the angle steel on the top of the placement platform, the welding work of the workers is facilitated. Multiple movable first rollers are set up to reduce the friction coefficient between the angle steel and the tooling, which helps to avoid the angle steel from wearing down the tooling.

[0018] 2. By setting a rotatable second wheel to contact the side wall of the angle steel, the angle steel is prevented from falling off during transportation. A hydraulic cylinder and an L-shaped pressure block are set to press the top of the angle steel, thereby clamping the angle steel between the placement platform and the L-shaped pressure block, which helps to prevent the angle steel from moving during the welding process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the placement platform in this utility model;

[0022] Figure 3 This is a schematic diagram of the toothed block in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fixed platform in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the first frame in this utility model;

[0025] Figure 6 This is a schematic diagram of the transfer block of this utility model.

[0026] In the diagram: 1. Placement platform; 11. Sliding rod; 12. Support block; 13. First spring; 14. First rotating wheel; 15. First limiting cylinder; 16. First fixing block; 2. First frame; 21. Hydraulic cylinder; 22. L-shaped pressure block; 23. Rotating block; 24. Second spring; 25. Second rotating wheel; 3. Motor; 31. First gear; 32. Gear block; 4. First magnetic block; 41. Second magnetic block; 42. First screw; 5. Limiting plate; 51. Second limiting cylinder; 52. Limiting rod; 6. Pressure plate; 61. Second screw; 7. Fixing platform; 71. Air duct; 72. Second frame; 73. Fan; 8. Second fixing block; 9. Guide block; 10. Flange. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1 to 3As shown in the figure, a CNC welding fixture for angle steel crossbeams according to an embodiment of the present invention includes a placement table 1. The fixture is characterized by: a sliding rod 11 slidably connected inside the placement table 1, with multiple sliding rods 11 arranged correspondingly; a support block 12 fixedly connected between adjacent sliding rods 11; a first spring 13 fixedly connected between the placement table 1 and the support block 12, with the first spring 13 positioned corresponding to the sliding rod 11; a first rotating wheel 14 rotatably connected inside the support block 12, with two first rotating wheels 14 arranged correspondingly; a first limiting cylinder 15 fixedly connected to the side wall of the placement table 1, with multiple first limiting cylinders 15 positioned corresponding to the sliding rod 11; a first fixing block 16 fixedly connected to the bottom of the placement table 1; and a clamping assembly provided at the top of the placement table 1. During operation, the bottom of the first fixing block 16 contacts the ground. Because the first fixing block 16 is fixedly connected to the placement table 1, the first fixing block 16 can... To provide support for the placement platform 1, the operator can guide the angle steel from one side of the placement platform 1 to the top of the placement platform 1. At this time, the angle steel will come into contact with multiple first rotating wheels 14. Subsequently, the operator can use the clamping assembly to apply pressure to the angle steel, causing multiple first springs 13 to compress. After the first springs 13 are compressed, the positions of multiple support blocks 12 will change due to the sliding connection between the slide rod 11 and the placement platform 1. The angle steel will eventually come into direct contact with the surface of the placement platform 1. The first limiting cylinder 15 is slidably connected to the slide rod 11, which serves to limit the slide rod 11. Through the above structure, the clamping assembly clamps the angle steel to the top of the placement platform 1, thereby facilitating the welding work of the operator. The multiple movable first rotating wheels 14 reduce the friction coefficient between the angle steel and the tooling, which helps to prevent the angle steel from wearing down the tooling.

[0034] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the clamping assembly includes a first frame 2; a hydraulic cylinder 21 is fixedly connected to the side wall of the first frame 2, and multiple hydraulic cylinders 21 are arranged correspondingly; an L-shaped pressure block 22 is fixedly connected to the output end of the hydraulic cylinder 21; a rotating block 23 is rotatably connected to the bottom of the L-shaped pressure block 22, and a second spring 24 is fixedly connected between the L-shaped pressure block 22 and the rotating block 23; a second rotating wheel 25 is rotatably connected inside the rotating block 23; during operation, as the angle steel moves from one end of the placement platform 1 to the predetermined position, the second rotating wheel 25 rotatably connected inside the rotating block 23 will contact the side wall of the angle steel. At this time, the bottom of the angle steel contacts the first rotating wheel 14, while its top side wall is clamped by the second rotating wheel 25. After the angle steel reaches the predetermined position, the operator can drive the hydraulic cylinder 21. By adjusting the height of the L-shaped pressure block 22, as the height of the L-shaped pressure block 22 decreases, the second spring 24 fixed between the rotating block 23 and the L-shaped pressure block 22 will be compressed, and the positions of the rotating block 23 and the second rotating wheel 25 will also change. Finally, the L-shaped pressure block 22 will come into contact with the angle steel and press the angle steel tightly against the top of the placement platform 1 through contact. The first frame 2 serves to fix the hydraulic cylinder 21. Through the above structure, the rotatable second rotating wheel 25 is set to contact the side wall of the angle steel, thereby preventing the angle steel from falling off during transportation. The hydraulic cylinder 21 and the L-shaped pressure block 22 are set to press against the top of the angle steel, thereby clamping the angle steel between the placement platform 1 and the L-shaped pressure block 22, which helps to prevent the angle steel from moving during the welding process.

[0035] like Figures 1 to 3 As shown, a motor 3 is fixedly connected to the bottom of the placement platform 1, and two motors 3 are arranged correspondingly. A first gear 31 is fixedly connected to the output end of the motor 3. A toothed block 32 meshes on the side wall of the first gear 31, and the first gear 31 and the toothed block 32 are rotatably connected inside the placement platform 1. During operation, after the angle steel moves to the predetermined position, the operator can drive the motor 3 to make the two toothed blocks 32 contact the two ends of the angle steel respectively, thereby limiting its position. Whenever the first gear 31 fixed to the output end of the motor 3 rotates, the first gear 31 can make the toothed block 32 rotate synchronously by means of the meshing relationship. Through the above structure, the motor 3 is set to adjust the position of the toothed block 32, thereby controlling the contact relationship between the toothed block 32 and the angle steel, avoiding the angle steel from sliding during the welding process, which is beneficial to improving the angle steel positioning capability of the tooling.

[0036] like Figure 6As shown, a first magnetic block 4 is provided at the bottom of the L-shaped pressure block 22, and a first screw 42 is provided between the L-shaped pressure block 22 and the first magnetic block 4; a second magnetic block 41 is provided at the top of the rotating block 23, and a first screw 42 is provided between the rotating block 23 and the second magnetic block 41; during operation, the operator can fix the first magnetic block 4 to the bottom of the L-shaped pressure block 22 and fix the second magnetic block 41 to the top of the rotating block 23 using the first screw 42 respectively. Since the first magnetic block 4 and the second magnetic block 41 attract each other, the rotating block 23 will not be able to rotate when subjected to low stress. Through the above structure, the first magnetic block 4 and the second magnetic block 41 apply magnetic force between the L-shaped pressure block 22 and the rotating block 23, thereby preventing the rotating block 23 from rotating under low stress, which helps to improve the stability of the tooling and reduce component vibration.

[0037] like Figure 5 As shown, a limiting plate 5 is fixedly connected to the bottom of the first frame 2; a second limiting cylinder 51 is fixedly connected to the side wall of the limiting plate 5, and multiple second limiting cylinders 51 are arranged in a corresponding manner; a limiting rod 52 is fixedly connected to the side wall of the L-shaped pressure block 22; during operation, the output end of the hydraulic cylinder 21 is slidably connected to the second limiting cylinder 51, and the limiting rod 52 is slidably connected to the second limiting cylinder 51. The second limiting cylinder 51 fixed to the side wall of the limiting plate 5 can achieve the component limiting effect through the sliding connection; through the above structure, the second limiting cylinder 51 is set to limit the output end of the hydraulic cylinder 21 and the limiting rod 52, thereby preventing the L-shaped pressure block 22 from being displaced during the clamping process, improving the stability of the tooling, and helping to extend the service life of the tooling.

[0038] like Figure 3 As shown, a pressure plate 6 is provided on the side wall of the toothed block 32; a second screw 61 is provided between the pressure plate 6 and the toothed block 32; the second screw 61 is made of plastic; during operation, the operator can use the second screw 61 to fix the pressure plate 6 to the side wall of the toothed block 32, so that the pressure plate 6, made of plastic, replaces the rotating block 23 to contact the surface of the angle steel; through the above structure, the second screw 61 is set to fix the pressure plate 6, so that the pressure plate 6 replaces the toothed block 32 to contact the angle steel, and the flexibility of the plastic material is utilized to prevent the angle steel from deforming under stress.

[0039] like Figure 1 and Figure 4As shown, a fixed platform 7 is fixedly connected to the side wall of the first frame 2; a ventilation duct 71 is fixedly connected to the side wall of the fixed platform 7; a second frame 72 is fixedly connected to the inner side wall of the ventilation duct 71, and a fan 73 is fixedly connected to the side wall of the second frame 72; during operation, the operator can change the airflow direction within the tooling area by driving the fan 73. When the fan 73 is working, the air will be moved from the bottom of the fixed platform 7 to the top of the ventilation duct 71 by the action of the fan 73. The ventilation duct 71 and the second frame 72 serve to fix the fan 73. Through the above structure, the fan 73 is fixed by the ventilation duct 71 and the second frame 72, thereby changing the airflow direction with the help of the fan 73, which is conducive to the discharge of harmful gases and the protection of the operator's health.

[0040] like Figure 1 and Figure 4 As shown, a second fixing block 8 is fixedly connected between the placement platform 1 and the fixed platform 7. During operation, the second fixing block 8, which is fixed between the placement platform 1 and the fixed platform 7, can work with the first fixing block 16 to stabilize the position of the placement platform 1. Through the above structure, the second fixing block 8, which is fixed between the placement platform 1 and the fixed platform 7, can stabilize the placement platform 1 by means of its fixed connection with the placement platform 1 and the fixed platform 7. Through the above structure, the second fixing block 8 stabilizes the placement platform 1, which helps to prevent the placement platform 1 from shifting under stress and improves the stability of the tooling.

[0041] like Figure 1 and Figure 2 As shown, a guide block 9 is fixed to the side wall of the placement platform 1; during operation, the worker can use the guide block 9 to guide the angle steel to the top of the placement platform 1; through the above structure, the guide block 9 guides the angle steel, which helps to prevent the angle steel from falling when it reaches the side end of the tooling.

[0042] like Figure 1 and Figure 4 As shown, a flange 10 is fixed to the side wall of the ventilation duct 71. During operation, workers can use the flange 10 to connect the ventilation duct 71 to the exhaust pipe in the factory, thereby expelling harmful gases from the factory. Through the above structure, the flange 10 allows the ventilation duct 71 to be connected to external pipes, which is beneficial for expelling harmful gases generated during welding and protecting personnel safety.

[0043] During operation, the bottom of the first fixing block 16 contacts the ground. Since the first fixing block 16 is fixedly connected to the placement platform 1, it provides support for the platform. The operator can guide the angle steel from one side of the platform 1 to the top. At this point, the angle steel will contact multiple first rotating wheels 14. Subsequently, the operator can use a clamping assembly to apply pressure to the angle steel, compressing multiple first springs 13. After the first springs 13 are compressed, the positions of multiple support blocks 12 will change due to the sliding connection between the slide rod 11 and the platform 1. The angle steel will ultimately directly contact the surface of the platform 1. The first limiting cylinder 15 is slidably connected to the slide rod 11, serving to limit the movement of the slide rod 11. During the movement of the angle steel from one end of the placement platform 1 to the predetermined position, the second rotating wheel 25, which is rotatably connected inside the rotating block 23, will contact the side wall of the angle steel. At this time, the bottom of the angle steel contacts the first rotating wheel 14, while its top side wall is clamped by the second rotating wheel 25. After the angle steel reaches the predetermined position, the operator can adjust the height of the L-shaped pressure block 22 by driving the hydraulic cylinder 21. As the height of the L-shaped pressure block 22 decreases, the second spring 24 fixed between the rotating block 23 and the L-shaped pressure block 22 will be compressed, and the positions of the rotating block 23 and the second rotating wheel 25 will also change. Finally, the L-shaped pressure block 22 will contact the angle steel and press the angle steel firmly against the top of the placement platform 1. The first frame 2 starts... Under the action of the fixed hydraulic cylinder 21, after the angle steel moves to the predetermined position, the operator can use the drive motor 3 to make the two toothed blocks 32 contact the two ends of the angle steel respectively, thereby limiting its position. Whenever the first gear 31 fixed to the output end of the motor 3 rotates, the first gear 31 can cause the toothed blocks 32 to rotate synchronously through the meshing relationship. The operator can fix the first magnetic block 4 to the bottom of the L-shaped pressure block 22 and the second magnetic block 41 to the top of the rotating block 23 using the first screw 42. Because the first magnetic block 4 and the second magnetic block 41 attract each other, the rotating block 23 will not rotate under low stress. The output end of the hydraulic cylinder 21 is in a sliding connection with the second limiting cylinder 51, and the limiting rod 52 and... The second limiting cylinder 51 is slidably connected. The second limiting cylinder 51, which is fixed to the side wall of the limiting plate 5, can achieve the component limiting effect through the sliding connection. The operator can use the second screw 61 to fix the pressure plate 6 to the side wall of the toothed block 32, so that the pressure plate 6, which is made of plastic, replaces the rotating block 23 and contacts the surface of the angle steel. The operator can change the airflow direction within the tooling area by driving the fan 73. When the fan 73 is working, the air will be moved from the bottom of the fixed platform 7 to the top of the fan duct 71 by the action of the fan 73. The fan duct 71 and the second frame 72 serve to fix the fan 73. The second fixing block 8, which is fixed between the placement platform 1 and the fixed platform 7, can cooperate with the first fixing block 16 to stabilize the position of the placement platform 1.Workers can use guide block 9 to guide the angle steel to the top of the placement platform 1, and use flange 10 to connect the ventilation duct 71 to the exhaust pipe inside the factory, thereby expelling harmful gases from the factory.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A CNC welding fixture for angle steel crossbeams, comprising a placement table (1), characterized in that: The placement platform (1) is internally slidably connected to a slide rod (11), and multiple slide rods (11) are arranged in a corresponding manner; a support block (12) is fixedly connected between adjacent slide rods (11); a first spring (13) is fixedly connected between the placement platform (1) and the support block (12), and the first spring (13) is arranged at the position corresponding to the slide rod (11); a first rotating wheel (14) is rotatably connected inside the support block (12), and two first rotating wheels (14) are arranged in a corresponding manner; a first limiting cylinder (15) is fixedly connected to the side wall of the placement platform (1), and multiple first limiting cylinders (15) are arranged at the position corresponding to the slide rod (11); a first fixing block (16) is fixedly connected to the bottom of the placement platform (1); a clamping assembly is provided on the top of the placement platform (1).

2. The numerical control welding tooling for angle steel cross arm according to claim 1, characterized in that: The clamping assembly includes a first frame (2); a hydraulic cylinder (21) is fixedly connected to the side wall of the first frame (2), and a plurality of the hydraulic cylinders (21) are arranged in a corresponding manner; an L-shaped pressure block (22) is fixedly connected to the output end of the hydraulic cylinder (21); a rotating block (23) is rotatably connected to the bottom of the L-shaped pressure block (22), and a second spring (24) is fixedly connected between the L-shaped pressure block (22) and the rotating block (23); a second rotating wheel (25) is rotatably connected inside the rotating block (23).

3. The numerical control welding tooling for angle steel cross arm according to claim 1, characterized in that: The bottom of the placement platform (1) is fixedly connected to a motor (3), and the two motors (3) are arranged in a corresponding manner; the output end of the motor (3) is fixedly connected to a first gear (31); a tooth block (32) meshes on the side wall of the first gear (31), and the first gear (31) and the tooth block (32) are rotatably connected inside the placement platform (1).

4. The numerical control welding tooling for angle steel cross arm according to claim 2, characterized in that: The bottom of the L-shaped pressure block (22) is provided with a first magnetic block (4), and a first screw (42) is provided between the L-shaped pressure block (22) and the first magnetic block (4); the top of the rotating block (23) is provided with a second magnetic block (41), and a first screw (42) is provided between the rotating block (23) and the second magnetic block (41).

5. The numerical control welding tooling for angle steel cross arm according to claim 4, characterized in that: The bottom of the first frame (2) is fixedly connected to a limiting plate (5); a second limiting cylinder (51) is fixedly connected to the side wall of the limiting plate (5), and multiple second limiting cylinders (51) are arranged in a corresponding manner; a limiting rod (52) is fixedly connected to the side wall of the L-shaped pressure block (22).

6. The numerical control welding tooling for angle steel cross arm according to claim 3, characterized in that: A pressure plate (6) is provided on the side wall of the toothed block (32); a second screw (61) is provided between the pressure plate (6) and the toothed block (32); the second screw (61) is made of plastic.

7. The numerical control welding tooling for angle steel cross arm according to claim 5, characterized in that: A fixed platform (7) is fixed to the side wall of the first frame (2); a wind duct (71) is fixed to the side wall of the fixed platform (7); a second frame (72) is fixed to the inner side wall of the wind duct (71), and a fan (73) is fixed to the side wall of the second frame (72).

8. The numerical control welding tooling for angle steel cross arm according to claim 7, characterized in that: A second fixing block (8) is fixedly connected between the placement platform (1) and the fixing platform (7).

9. The numerical control welding tooling for angle steel cross arm according to claim 8, characterized in that: A guide block (9) is fixed to the side wall of the placement platform (1).

10. The CNC welding fixture for angle steel crossbeams according to claim 7, characterized in that: A flange (10) is fixed to the side wall of the air duct (71).

Images