Machining device and method for steel fireproof door

Abstract

The invention belongs to the field of steel fireproof door machining, and particularly relates to a machining device and method for a steel fireproof door. A machining device for a steel fireproof door comprises a supporting and positioning frame and the like. The side face positioning mechanisms are arranged on the left portion and the right portion of the supporting and positioning frame, the welding mechanisms are arranged above the left portion and the right portion of the supporting and positioning frame, when the door frame is welded, the supporting and positioning frame limits the front face, the rear face, the left face and the right face of the frame, and the side face positioning mechanisms position the left face and the right face of the door frame. The movable frame moves towards the fixed frame, under the action of the first positioning seat, the front edge and the rear edge of the door frame are close to each other, meanwhile, under the cooperation of the side face positioning mechanism, all parts of the door frame can be precisely closed, the welding precision is improved, the welding labor intensity is reduced, then the door frame is welded through the welding mechanism, and the welding efficiency is improved. And after the welding mechanism finishes welding, the rotating seat and the devices on the rotating seat rotate to leave the upper part of the door frame.

Description

Technical Field

[0001] The present invention belongs to the field of steel fire door processing, and particularly relates to a processing device and a processing method for steel fire doors. Background Art

[0002] Currently, in the manufacturing process of steel fire doors, especially in the welding process of door frames, it mainly relies on manual operation to complete. Specifically, workers need to manually butt the various parts of the door frame, press the butt joints by hand, and then use a handheld welder to weld these seams. This traditional manufacturing method has several significant problems:

[0003] High labor intensity: Since the whole process highly depends on human labor, especially the manual pressing of butt joints and welding operations, long-term work will cause physical fatigue of workers, thus affecting work efficiency and product quality.

[0004] High positioning difficulty: Without effective auxiliary tools, accurately positioning the door frame components to the specified position is a challenge. Any slight deviation may lead to unqualified final products, increasing the rejection rate.

[0005] Low welding accuracy: Manual operation is difficult to ensure the consistency and accuracy of each welding. This not only affects the overall aesthetics of the door frame, but more importantly, may weaken the structural strength and fire resistance of the fire door.

[0006] Low production efficiency: Due to the existence of the above factors, the overall production cycle is long, and it cannot meet the market demand for rapid delivery.

[0007] Therefore, there is an urgent need to develop a processing device and a processing method for steel fire doors that can automatically complete the positioning of the fire door frame for welding. Summary of the Invention

[0008] In order to overcome the above-mentioned disadvantages of the prior art, the present invention provides a processing device and a processing method for steel fire doors that can automatically complete the positioning of the fire door frame for welding.

[0009] The technical implementation solution of the present invention is: a processing device for a steel fire door, including a support positioning frame, a side positioning mechanism and a welding mechanism. Side positioning mechanisms are arranged on both the left and right parts of the support positioning frame, and welding mechanisms are arranged above both the left and right parts of the support positioning frame; The support positioning frame includes a fixed frame, a movable frame, wheels, a first guide shaft, a first guide sleeve, a cylinder, a first positioning seat and a second positioning seat. The fixed frame and the movable frame are slidably connected through the first guide shaft and the first guide sleeve. A row of wheels are evenly spaced at the bottom of the movable frame. Cylinders are symmetrically arranged left and right between the fixed frame and the movable frame. First positioning seats and second positioning seats are arranged on the tops of both the fixed frame and the movable frame. The first positioning seat is used to position the front and back sides of the door frame, and the second positioning seat is used to position the left and right sides of the door frame.

[0010] As an improvement of the above solution, the side positioning mechanism includes a second optical axis, a push plate, a second guide sleeve and a follower wheel. Second optical axes are connected above the left and right parts of both the fixed frame and the movable frame. The second optical axis on the fixed frame is fixedly connected to the fixed frame, and the second optical axis on the movable frame is slidably connected to the movable frame through a track and a slider. Second guide sleeves are slidably connected on the second optical axes. A push plate is fixedly connected between the second guide sleeves on the same side. Guide holes are opened on the fixed frame and the movable frame above the push plate. A follower wheel is rotatably arranged on the left side of the movable frame below the push plate.

[0011] As an improvement of the above solution, the side of the push plate facing the movable frame is an inclined surface extending downward, and the upper side surface of the push plate is conical, with the conical surface facing the side of the door frame.

[0012] As an improvement of the above solution, limit shafts are symmetrically arranged left and right on the tops of the fixed frame and the movable frame.

[0013] As an improvement of the above solution, the inner side surface of the limit shaft is flush with the outermost end of the conical surface of the upper side surface of the push plate.

[0014] As an improvement of the above solution, the welding mechanism includes a sliding concave plate, an X-axis module, a rotating seat, a lead screw, a guide rod, a first motor, a threaded seat, a Z-axis module, a laser head and a rotating component. Sliding concave plates are slidably connected to both the left and right parts of the fixed frame and the movable frame. X-axis modules are arranged on the fixed frame and the movable frame below the sliding concave plates. The slider on the X-axis module is fixedly connected to the sliding concave plate above it. Rotating components are arranged on the upper parts of the sliding concave plates. The rotating components have a self-locking function. Rotating seats are installed on the rotating components. A lead screw and a guide rod are arranged between the rotating seats on the left side and between the rotating seats on the right side. The lead screw is below the guide rod. A first motor is fixedly connected to the rotating seat at the rear side. The output shaft of the first motor is connected to the end of the adjacent lead screw. A threaded seat is connected to the lead screw through a thread. The threaded seat is slidably connected to the guide rod. A Z-axis module is arranged on the inner side surface of the threaded seat. A laser head is fixedly connected to the slider of the Z-axis module.

[0015] As an improvement of the above solution, the rotating member includes a second motor and a worm and worm gear set. The outer side of the sliding concave plate is fixedly connected with the second motor. The worm and worm gear set consists of a worm wheel and a worm. The worm wheel is installed on the rotating shaft of the rotating seat, the worm is installed on the output shaft of the second motor, and the worm meshes with the worm wheel.

[0016] A processing method of a steel fire door includes the following steps:

[0017] Step 1: Place the door frame on the support positioning frame. The front and rear sides of the door frame are respectively on the fixed frame and the moving frame, and the front and rear sides of the door frame are inside the first positioning seat. The left and right sides of the door frame are placed on the outer side of the second positioning seat and are in contact with the outer surface of the second positioning seat.

[0018] Step 2: Control the cylinder to close. At this time, under the action of the first positioning seat, the second positioning seat and the side positioning mechanism, the placed door frame is positioned and closed.

[0019] Step 3: Weld the positioned door frame through the welding mechanism.

[0020] Step 4: Rotate the welding mechanism away from above the door frame, and then take out the welded door frame.

[0021] The beneficial effects of the present invention are as follows: In the present invention, the moving frame moves towards the fixed frame. Under the action of the first positioning seat, the front and rear sides of the door frame approach each other. At the same time, with the cooperation of the side positioning mechanism, each part of the door frame can be accurately closed, improving the welding accuracy and reducing the labor intensity of welding. Subsequently, the door frame is welded through the welding mechanism. After the welding mechanism finishes welding, the rotating seat and the devices thereon rotate away from above the door frame to facilitate the removal of the welded door frame. Brief Description of the Drawings

[0022] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0023] Figure 2 It is a three-dimensional structure schematic diagram of the support positioning frame of the present invention.

[0024] Figure 3 It is a three-dimensional structure schematic diagram of the side positioning mechanism of the present invention.

[0025] Figure 4 It is an enlarged view of the side positioning mechanism of the present invention.

[0026] Figure 5 It is a three-dimensional structure schematic diagram when the welding mechanism of the present invention is working.

[0027] Figure 6 It is a three-dimensional structure schematic diagram of another perspective of the welding mechanism of the present invention.

[0028] Figure 7 This is a three-dimensional structural schematic diagram when the welding mechanism of the present invention is not working.

[0029] Among them: 1: Support positioning frame, 101: Fixed frame, 102: Moving frame, 103: Wheels, 104: First guide shaft, 105: First guide sleeve, 106: Cylinder, 107: First positioning seat, 108: Second positioning seat, 109: Limit shaft, 2: Side positioning mechanism, 201: Second optical axis, 202: Pusher plate, 203: Second guide sleeve, 204: Guide hole, 205: Follow-up wheel, 3: Welding mechanism, 301: Sliding concave plate, 302: X-axis module, 303: Rotating seat, 304: Lead screw, 305: Guide rod, 306: First motor, 307: Threaded seat, 308: Z-axis module, 309: Laser head, 3010: Second motor, 3011: Worm and worm gear set. Specific embodiments

[0030] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for illustrating the present application and not for limiting the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually those in conventional experiments.

[0031] Embodiment: A processing device for steel fire doors, as Figures 1-7 shown, includes a support positioning frame 1, a side positioning mechanism 2 and a welding mechanism 3. Side positioning mechanisms 2 are arranged on both the left and right parts of the support positioning frame 1, and welding mechanisms 3 are arranged above both the left and right parts of the support positioning frame 1. When welding the door frame, the support positioning frame 1 performs over-limiting on the front, back, left and right four faces of the frame, the side positioning mechanism 2 positions the left and right faces of the door frame, and the welding mechanism 3 welds the joint points of the door frame by means of laser.

[0032] As Figure 2As shown in the figure, the support positioning frame 1 includes a fixed frame 101, a movable frame 102, wheels 103, a first guide shaft 104, a first guide sleeve 105, a cylinder 106, a first positioning seat 107 and a second positioning seat 108. The fixed frame 101 and the movable frame 102 are slidably connected through the first guide shaft 104 and the first guide sleeve 105. The first guide shaft 104 is fixedly installed on the fixed frame 101, and the first guide sleeve 105 is fixedly connected to the movable frame 102 on the right side of the first guide shaft 104 by bolts. The first guide shaft 104 passes through the first guide sleeve 105 on its right side. A row of wheels 103 are evenly spaced at the bottom of the movable frame 102. Cylinders 106 are symmetrically arranged on the left and right between the fixed frame 101 and the movable frame 102. The telescopic end and the fixed end of the cylinder 106 are respectively connected to the fixed frame 101 and the movable frame 102. First positioning seats 107 and second positioning seats 108 are arranged on the tops of both the fixed frame 101 and the movable frame 102. The first positioning seat 107 is used to position the front and back sides of the door frame, and the second positioning seat 108 is used to position the left and right sides of the door frame. When welding the door frame, place the front and back sides of the door frame on the tops of the fixed frame 101 and the movable frame 102. The front and back sides of the door frame are inside the first positioning seat 107. Subsequently, place the left and right sides of the door frame on the left and right parts of the fixed frame 101 and the movable frame 102. The left and right sides of the door frame lean against the outside of the second positioning seat 108, as Figure 2 shown.

[0033] As Figure 3 and Figure 4 shown, the side positioning mechanism 2 includes a second optical axis 201, a push plate 202, a second guide sleeve 203 and a follower wheel 205. Second optical axes 201 are connected above the left and right parts of both the fixed frame 101 and the movable frame 102. The second optical axis 201 on the fixed frame 101 is fixedly connected to the fixed frame 101, and the second optical axis 201 on the movable frame 102 is slidably connected to the movable frame 102 through a track and a slider. Second guide sleeves 203 are slidably connected on the second optical axes 201. A push plate 202 is fixedly connected between the second guide sleeves 203 on the same side. The side of the push plate 202 facing the movable frame 102 is an inclined surface extending downward. The upper side of the push plate 202 is conical, and the conical surface faces the side of the door frame. Guide holes 204 are opened on the fixed frame 101 and the movable frame 102 above the push plate 202. A follower wheel 205 is rotatably arranged on the left side of the movable frame 102 below the push plate 202, and the follower wheel 205 is stuck on the hypotenuse of the push plate 202.

[0034] As Figure 2As shown, it further includes limiting shafts 109 symmetrically arranged on the top of the fixed frame 101 and the moving frame 102 from left to right. The outermost ends of the tapered surfaces on the inner sides of the limiting shafts 109 are flush with the upper side of the push plate 202. Due to the function of the limiting shafts 109, when placing the front and rear sides of the door frame, the placement positions of the left and right ends of the door frame will not exceed the limiting shafts 109. In this way, when the push plate 202 moves upward, the push plate 202 can push the front and rear sides of the door frame to adjust the positions of the front and rear sides of the door frame.

[0035] As Figures 5-7 shown, the welding mechanism 3 includes a sliding concave plate 301, an X-axis module 302, a rotating seat 303, a lead screw 304, a guide rod 305, a first motor 306, a threaded seat 307, a Z-axis module 308, a laser head 309 and a rotating component. Sliding concave plates 301 are slidably connected to the left and right parts of the fixed frame 101 and the moving frame 102. X-axis modules 302 are arranged on the fixed frame 101 and the moving frame 102 below the sliding concave plates 301. The sliders on the X-axis modules 302 are fixedly connected to the sliding concave plates 301 above them. The X-axis module 302 can drive the sliding concave plate 301 to move horizontally. Rotating components are arranged on the upper parts of the sliding concave plates 301. The rotating components have a self-locking function. Rotating seats 303 are installed on the rotating components. A lead screw 304 and a guide rod 305 are arranged between the left rotating seats 303 and between the right rotating seats 303. The lead screw 304 and the guide rod 305 are installed parallel to the left and right sides of the door frame. The lead screw 304 is below the guide rod 305. A first motor 306 is fixedly connected to the rear rotating seat 303 by bolts. The output shaft of the first motor 306 is connected to the end of the adjacent lead screw 304. A threaded seat 307 is threadedly connected to the lead screw 304. The threaded seat 307 is slidably connected to the guide rod 305. A Z-axis module 308 is arranged on the inner side of the threaded seat 307. A laser head 309 is fixedly connected to the slider of the Z-axis module 308 by bolts. The Z-axis module 308 can drive the laser head 309 to move vertically to adjust the focal length, so as to weld the door frame.

[0036] The rotating component includes a second motor 3010 and a worm and worm gear set 3011. The outer side of the sliding concave plate 301 is fixedly connected to the second motor 3010 by bolts. The worm and worm gear set 3011 is composed of a worm and a worm gear. The worm gear is installed on the rotating shaft of the rotating seat 303. The worm is installed on the output shaft of the second motor 3010. The worm meshes with the worm gear. The rotation of the worm and worm gear can drive the rotating seat 303 and its upper components to rotate.

[0037] When welding the door frame, first place the front and rear sides of the door frame above the fixed frame 101 and the moving frame 102, place the left and right sides of the door frame on the left and right parts of the fixed frame 101 and the moving frame 102. The position of the door frame refers toFigure 2 , subsequently, control the cylinder 106 to shorten, so that the moving frame 102 and the components thereon move towards the fixed frame 101. When the moving frame 102 moves towards the fixed frame 101, the follower wheel 205 pushes the push plate 202 to move upward. Due to the upper inner conical surface of the push plate 202, when the push plate 202 moves upward, the push plate 202 pushes the left and right sides and the front and rear sides of the door frame towards the middle. After the edge positions of the door frame are completely fitted, control the cylinder 106 to stop working. At this time, adjust the position of the laser head 309 through the X-axis module 302, the Z-axis module 308 and the first motor 306, and connect the laser head 309 to the laser. Weld the joint of the door frame by emitting laser through the laser head 309. After the door frame is welded, control the laser head 309 to stop working. By controlling the rotation of the second motor 3010, drive the rotating seat 303 and the devices thereon to rotate through the worm and gear set 3011, so that the welding mechanism 3 becomes Figure 7 the state as shown in the figure. At this time, the rotating seat 303 and the devices thereon are not above the welded door frame, so as to facilitate the removal of the welded door frame. After the door frame is removed, drive the moving frame 102 and the devices thereon to reset through the cylinder 106, and then place a new door frame for welding.

[0038] A processing method for a steel fire door includes the following steps:

[0039] Step 1: Place the door frame on the support positioning frame 1. The front and rear sides of the door frame are respectively on the fixed frame 101 and the moving frame 102, and the front and rear sides of the door frame are inside the first positioning seat 107. The left and right sides of the door frame are placed on the outer side of the second positioning seat 108 and are in contact with the outer surface of the second positioning seat 108;

[0040] Step 2: Control the cylinder 106 to close. At this time, under the action of the first positioning seat 107, the second positioning seat 108 and the side positioning mechanism 2, the placed door frame is positioned and closed;

[0041] Step 3: Weld the positioned door frame through the welding mechanism 3;

[0042] Step 4: Rotate the welding mechanism 3 away from above the door frame, and then take out the welded door frame.

[0043] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all modifications and equivalent structures and functions.

Claims

1. A processing device for a steel fire door, comprising a support positioning frame (1), a side positioning mechanism (2) and a welding mechanism (3). The side positioning mechanisms (2) are arranged on both the left and right parts of the support positioning frame (1), and the welding mechanisms (3) are arranged above both the left and right parts of the support positioning frame (1); characterized in that: The support positioning frame (1) includes a fixed frame (101), a movable frame (102), wheels (103), a first guide shaft (104), a first guide sleeve (105), a cylinder (106), a first positioning seat (107) and a second positioning seat (108). The fixed frame (101) and the movable frame (102) are slidably connected through the first guide shaft (104) and the first guide sleeve (105). A row of wheels (103) are evenly spaced at the bottom of the movable frame (102). Cylinders (106) are symmetrically arranged left and right between the fixed frame (101) and the movable frame (102). First positioning seats (107) and second positioning seats (108) are arranged at the tops of the fixed frame (101) and the movable frame (102). The first positioning seat (107) is used to position the front and back sides of the door frame, and the second positioning seat (108) is used to position the left and right sides of the door frame.

2. The processing device for a steel fire door according to claim 1, characterized in that: The side positioning mechanism (2) includes a second optical axis (201), a push plate (202), a second guide sleeve (203) and a follower wheel (205). The upper parts on the left and right of the fixed frame (101) and the movable frame (102) are both connected with the second optical axis (201). The second optical axis (201) on the fixed frame (101) is fixedly connected with the fixed frame (101). The second optical axis (201) on the movable frame (102) is slidably connected with the movable frame (102) through a track and a slider. Second guide sleeves (203) are slidably connected on the second optical axes (201). A push plate (202) is fixedly connected between the second guide sleeves (203) on the same side. Guide holes (204) are formed in the fixed frame (101) and the movable frame (102) above the push plate (202). A follower wheel (205) is rotatably arranged on the left side of the movable frame (102) below the push plate (202).

3. The processing device for a steel fire door according to claim 2, characterized in that: The side of the push plate (202) facing the movable frame (102) is an inclined surface extending downward. The upper side surface of the push plate (202) is conical, and the conical surface faces the side of the door frame.

4. The processing device for a steel fire door according to claim 3, characterized in that: It also includes limit shafts (109) symmetrically arranged left and right at the tops of the fixed frame (101) and the movable frame (102).

5. The processing device of a steel fire door according to claim 4, characterized in that: The inner side surface of the limit shaft (109) is flush with the outermost end of the conical surface of the upper side surface of the push plate (202).

6. The processing device for a steel fire door according to claim 5, characterized in that: The welding mechanism (3) includes a sliding concave plate (301), an X-axis module (302), a rotating seat (303), a lead screw (304), a guide rod (305), a first motor (306), a threaded seat (307), a Z-axis module (308), a laser head (309) and a rotating component. The left and right parts of the fixed frame (101) and the moving frame (102) are both slidably connected with the sliding concave plate (301). The fixed frame (101) and the moving frame (102) at the lower part of the sliding concave plate (301) are both provided with an X-axis module (302). The slider on the X-axis module (302) is fixedly connected with the sliding concave plate (301) above it. The upper part of the sliding concave plate (301) is provided with a rotating component which has a self-locking function. The rotating seats (303) are both installed on the rotating components. A lead screw (304) and a guide rod (305) are arranged between the rotating seats (303) on the left side and between the rotating seats (303) on the right side. The lead screw (304) is below the guide rod (305). The first motor (306) is fixedly connected to the rotating seat (303) at the rear side. The output shaft of the first motor (306) is connected to the end of the adjacent lead screw (304). The threaded seat (307) is threadedly connected to the lead screw (304). The threaded seat (307) is slidably connected to the guide rod (305). The inner side of the threaded seat (307) is provided with a Z-axis module (308). The laser head (309) is fixedly connected to the slider of the Z-axis module (308).

7. The processing device for a steel fire door according to claim 6, characterized in that: The rotating component includes a second motor (3010) and a worm and worm gear set (3011). The second motor (3010) is fixedly connected to the outer side of the sliding concave plate (301). The worm and worm gear set (3011) consists of a worm wheel and a worm. The worm wheel is installed on the rotating shaft of the rotating seat (303). The worm is installed on the output shaft of the second motor (3010). The worm meshes with the worm wheel.

8. A processing method for a steel fire door, comprising the following steps: Step 1: Place the door frame on the support positioning frame (1). The front and rear sides of the door frame are respectively on the fixed frame (101) and the moving frame (102), and the front and rear sides of the door frame are inside the first positioning seat (107). The left and right sides of the door frame are placed on the outer side of the second positioning seat (108) and are in contact with the outer surface of the second positioning seat (108). Step 2: Control the cylinder (106) to close. At this time, under the action of the first positioning seat (107), the second positioning seat (108) and the side positioning mechanism (2), the placed door frame is positioned and closed. Step 3: Weld the positioned door frame through the welding mechanism (3). Step 4: Rotate the welding mechanism (3) away from above the door frame, and then take out the welded door frame.

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