Clamping tool for door frame welding

Abstract

The clamping tool for door frame welding comprises a fixing frame, the top of the fixing frame is semicircular, a rotating rod is rotationally installed in the middle of the fixing frame through a bearing, a workbench is fixedly installed in the middle of the rotating rod, grooves are formed in the four corners of the workbench, and the rotating rod is arranged in the grooves. The four corners of the upper surface of the workbench are each symmetrically provided with two movable frames in a sliding mode, and the two movable frames correspond to the long edges and the short edges of the door frames respectively. And then the driving motor operates to drive the L-shaped extrusion plates to fix the assembled four door frames at the same time, clamping of the door frames is facilitated, the workbench is driven to rotate through meshing of the driven gear and the driving gear, then overturning of the door frames is achieved, due to the L-shaped arrangement of the L-shaped extrusion plates, the door frames cannot fall off among the eight L-shaped extrusion plates, and therefore the door frames can be conveniently and rapidly assembled. And the back surface of the door frame can be welded, so that the door frame can be overturned conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a clamping tool for door frame welding. Background Art

[0002] Before installing the door leaf, a door frame needs to be installed on the door opening to facilitate the installation and fixation of the door leaf. When assembling the door frame, the operator needs to adjust the angle of each door frame frame to ensure that the welded door frame is rectangular and fix the door frame, and then weld each door frame frame in sequence.

[0003] In the actual welding operation, the worker first needs to adjust the position and angle of the door frame, then fix the four sides of the door frame in sequence through the clamping tool, and then weld the four sides of the door frame in sequence. The operation is cumbersome. At the same time, after welding one side, the operator needs to manually flip the door frame and then weld the other side, which takes a certain amount of time and increases the labor intensity of the staff. Utility Model Content

[0004] The utility model aims to provide a clamping tool for door frame welding to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping tool for door frame welding, comprising a fixed frame, the top of the fixed frame is semicircular, a rotating rod is rotatably installed in the middle of the fixed frame through a bearing, a workbench is fixedly installed in the middle of the rotating rod, grooves are provided at the four corners of the workbench, two movable frames are symmetrically and slidably installed at the four corners of the upper surface of the workbench, the two movable frames correspond to the long side and the short side of the door frame respectively, a sliding block is fixedly installed at the bottom of the movable frame, a sliding groove is provided on the position corresponding to the sliding block on the workbench, the sliding block is slidably connected to the sliding groove, an L-shaped extrusion plate for extruding the door frame is installed on the top of the movable frame, eight L-shaped extrusion plates can move simultaneously and clamp the door frame, and a control panel is fixedly installed at the end of the fixed frame.

[0006] As a further preferred embodiment of the present technical solution, a rotating motor is fixedly installed on one end of the fixed frame close to the control screen, a driving gear is fixedly installed on the output end of the rotating motor through the fixed frame, a driven gear is fixedly installed on one end of the rotating rod close to the driving gear, and the driven gear is meshingly connected with the driving gear.

[0007] As a further preferred embodiment of the present technical solution, a driving motor is fixedly installed in the middle of the workbench, a disc is fixedly installed on the output end of the driving motor through the workbench, and a reducing guide groove is provided in a ring array on the upper surface of the disc with the central axis of the disc as the axis, connecting plates are symmetrically and slidingly installed at the diagonal positions of the workbench, limiting rods are symmetrically and fixedly installed at the diagonal positions of the workbench, the limiting rods are slidably connected to the connecting plates, a guide rod is fixedly installed at the end of the connecting plate, the guide rod is slidably connected to the reducing guide groove, a positioning groove is symmetrically provided at the end of the connecting plate away from the guide rod, a positioning rod is fixedly installed at the end of the movable frame, and the positioning rod is slidably connected to the positioning groove.

[0008] As a further preferred embodiment of the present technical solution, a support plate for supporting the door frame is integrally fixedly mounted on the middle upper surface of the movable frame.

[0009] As a further preferred embodiment of the present technical solution, sliding holes are symmetrically opened at one end of the movable frame away from the positioning rod, a sliding rod is symmetrically fixedly installed on one side of the L-shaped extrusion plate, the sliding rod is slidably connected to the sliding hole, a buffer spring is sleeved on the outer side of the end of the sliding rod away from the L-shaped extrusion plate, one end of the buffer spring is fixedly connected to the end of the sliding rod away from the L-shaped extrusion plate, and the other end of the buffer spring is fixedly connected to one side of the movable frame.

[0010] As a further preferred embodiment of the technical solution, a moving ring is slidably mounted on the top inner wall of the fixed frame, a pushing ring is integrally fixedly mounted on the middle of the moving ring, and an outer ring of the pushing ring is fitted with the inner wall of the fixed frame.

[0011] The utility model provides a clamping tool for door frame welding, which has the following beneficial effects:

[0012] (1) The utility model places four door frames on a support plate, and connects the four sides of the four door frames, and then drives the disc to rotate through a driving motor. Since the limit rod limits the movement of the connecting plate and the guide rod is squeezed by the reducing guide groove, it will drive the connecting plate to slide along the track of the limit rod. Since the positioning rod is inside the positioning groove, it will drive the moving frame to slide along the track of the slide groove. The L-shaped extrusion plate will first contact the door frame. As the disc continues to rotate, the sliding rod will slide inside the sliding hole to achieve extrusion and clamping of the door frame. The four assembled door frames can be fixed at the same time, which is convenient for clamping the door frame.

[0013] (2) The utility model drives the workbench to rotate through the meshing of the driven gear and the driving gear, thereby realizing the flipping of the door frame. Due to the L-shaped setting of the L-shaped extrusion plate, the door frame will not fall off from between the eight L-shaped extrusion plates. The back of the door frame can be welded later, which is convenient for flipping the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is one of the overall structural diagrams of the utility model;

[0015] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0016] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0017] Figure 4 It is a schematic diagram of the overall explosion structure of the utility model;

[0018] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0019] In the figure: 1. fixed frame; 2. rotating rod; 3. workbench; 4. moving frame; 5. slider; 6. slide groove; 7. L-shaped extrusion plate; 8. control panel; 9. rotating motor; 10. driving gear; 11. driven gear; 12. driving motor; 13. disc; 14. reducing guide groove; 15. connecting plate; 16. limiting rod; 17. guide rod; 18. positioning groove; 19. positioning rod; 20. supporting plate; 21. sliding hole; 22. sliding rod; 23. buffer spring; 24. moving ring; 25. pushing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 5 As shown, in the present embodiment, a clamping tool for door frame welding comprises a fixed frame 1, the top of the fixed frame 1 is semicircular, a rotating rod 2 is rotatably installed in the middle of the fixed frame 1 through a bearing, a workbench 3 is fixedly installed in the middle of the rotating rod 2, grooves are provided at the four corners of the workbench 3, two movable frames 4 are symmetrically slidably installed at the four corners of the upper surface of the workbench 3, the two movable frames 4 correspond to the long side and the short side of the door frame respectively, a slider 5 is fixedly installed at the bottom of the movable frame 4, a slide groove 6 is provided at the position corresponding to the slider 5 on the workbench 3, the slider 5 is slidably connected to the slide groove 6, an L-shaped extrusion plate 7 for extruding the door frame is installed on the top of the movable frame 4, eight L-shaped extrusion plates 7 can move simultaneously and clamp the door frame, and a control panel 8 is fixedly installed at the end of the fixed frame 1.

[0022] like Figures 1 to 5 As shown, a rotating motor 9 is fixedly installed at one end of the fixed frame 1 close to the control panel 8, and a driving gear 10 is fixedly installed at the output end of the rotating motor 9 through the fixed frame 1. A driven gear 11 is fixedly installed at one end of the rotating rod 2 close to the driving gear 10, and the driven gear 11 is meshed and connected with the driving gear 10.

[0023] The operation of the rotating motor 9 will drive the driving gear 10 to rotate, and the meshing of the driven gear 11 with the driving gear 10 will drive the workbench 3 to rotate, so as to facilitate the turning over of the door frame.

[0024] like Figures 1 to 5 As shown, a driving motor 12 is fixedly installed in the middle of the workbench 3, and a disc 13 is fixedly installed on the output end of the driving motor 12 through the workbench 3. A reducing guide groove 14 is provided in a ring array on the upper surface of the disc 13 with the central axis of the disc 13 as the axis. A connecting plate 15 is symmetrically and slidably installed at the diagonal position of the workbench 3, and a limiting rod 16 is symmetrically and fixedly installed at the diagonal position of the workbench 3. The limiting rod 16 is slidably connected to the connecting plate 15. A guide rod 17 is fixedly installed at the end of the connecting plate 15, and the guide rod 17 is slidably connected to the reducing guide groove 14. A positioning groove 18 is symmetrically provided at the end of the connecting plate 15 away from the guide rod 17. A positioning rod 19 is fixedly installed at the end of the movable frame 4, and the positioning rod 19 is slidably connected to the positioning groove 18.

[0025] The disc 13 is driven to rotate by the driving motor 12. Since the limit rod 16 limits the movement of the connecting plate 15, and the guide rod 17 is squeezed by the reducing guide groove 14, the connecting plate 15 will be driven to slide along the trajectory of the limit rod 16. Since the positioning rod 19 is inside the positioning groove 18, the movable frame 4 will be driven to slide along the trajectory of the slide groove 6, so that the L-shaped extrusion plate 7 will first squeeze and clamp the door frame.

[0026] like Figures 1 to 5 As shown, a support plate 20 for supporting the door frame is integrally fixedly mounted on the middle upper surface of the mobile frame 4 .

[0027] The four door frames can be supported to prevent interference between the door frames and the device.

[0028] like Figures 1 to 5 As shown, a sliding hole 21 is symmetrically opened at one end of the movable frame 4 away from the positioning rod 19, a sliding rod 22 is symmetrically fixedly installed on one side of the L-shaped extrusion plate 7, the sliding rod 22 is slidably connected to the sliding hole 21, and a buffer spring 23 is sleeved on the outer side of the end of the sliding rod 22 away from the L-shaped extrusion plate 7, one end of the buffer spring 23 is fixedly connected to the end of the sliding rod 22 away from the L-shaped extrusion plate 7, and the other end of the buffer spring 23 is fixedly connected to one side of the movable frame 4.

[0029] When the L-shaped extrusion plate 7 first contacts the door frame, as the disc 13 continues to rotate, the slide rod 22 will slide inside the slide hole 21 to achieve extrusion and clamping of the door frame, preventing the L-shaped extrusion plate 7 from directly contacting the door frame and causing damage to the L-shaped extrusion plate 7 and the door frame.

[0030] like Figures 1 to 5As shown, a moving ring 24 is slidably mounted on the top inner wall of the fixing frame 1 , a pushing ring 25 is integrally fixedly mounted in the middle of the moving ring 24 , and the outer ring of the pushing ring 25 is fitted with the inner wall of the fixing frame 1 .

[0031] During long-term welding, the pusher ring 25 pushes and cleans the welding slag on the inner wall of the fixing frame 1 by pushing the movable ring 24 .

[0032] The utility model provides a clamping tool for door frame welding, and the specific working principle is as follows:

[0033] When the device is in use, four door frames are placed on the support plate 20, and the four sides of the four door frames are connected, and then the disc 13 is driven to rotate by the driving motor 12. Since the limit rod 16 limits the movement of the connecting plate 15, and the guide rod 17 is squeezed by the variable diameter guide groove 14, the connecting plate 15 will be driven to slide along the track of the limit rod 16. Since the positioning rod 19 is inside the positioning groove 18, the moving frame 4 will be driven to slide along the track of the slide groove 6. The L-shaped extrusion plate 7 will first contact the door frame. As the disc 13 continues to rotate, the slide rod 22 will be in the slide hole. 21 slides inside to achieve the extrusion and clamping of the door frame. After welding the top and outside of the four door frames, the rotation motor 9 will drive the driving gear 10 to rotate, and the meshing of the driven gear 11 and the driving gear 10 will drive the workbench 3 to rotate, thereby realizing the flipping of the door frame. Due to the L-shaped setting of the L-shaped extrusion plate 7, the door frame will not fall off from between the eight L-shaped extrusion plates 7, and then the back of the door frame can be welded. Under long-term welding, the push ring 24 and the push ring 25 will push and clean the welding slag at the inner wall of the fixed frame 1.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping tool for door frame welding, characterized in that: The invention comprises a fixed frame (1), the top of the fixed frame (1) is semicircular, a rotating rod (2) is rotatably mounted in the middle of the fixed frame (1) through a bearing, a workbench (3) is fixedly mounted in the middle of the rotating rod (2), grooves are provided at the four corners of the workbench (3), two movable frames (4) are symmetrically slidably mounted at the four corners of the upper surface of the workbench (3), the two movable frames (4) respectively correspond to the long side and the short side of the door frame, a slider (5) is fixedly mounted at the bottom of the movable frame (4), a slide groove (6) is provided at the position corresponding to the slider (5) on the workbench (3), the slider (5) is slidably connected to the slide groove (6), an L-shaped extrusion plate (7) for extruding the door frame is installed on the top of the movable frame (4), eight L-shaped extrusion plates (7) can move simultaneously and clamp the door frame, and a control panel (8) is fixedly mounted at the end of the fixed frame (1).

2. A clamping tool for door frame welding according to claim 1, characterized in that: A rotating motor (9) is fixedly mounted on one end of the fixed frame (1) close to the control panel (8); a driving gear (10) is fixedly mounted on the output end of the rotating motor (9) through the fixed frame (1); a driven gear (11) is fixedly mounted on one end of the rotating rod (2) close to the driving gear (10); and the driven gear (11) is meshingly connected with the driving gear (10).

3. The clamping tool for door frame welding according to claim 1, characterized in that: A driving motor (12) is fixedly installed in the middle of the workbench (3); a disc (13) is fixedly installed at the output end of the driving motor (12) through the workbench (3); a reducing guide groove (14) is provided in a ring array on the upper surface of the disc (13) with the central axis of the disc (13) as the axis; a connecting plate (15) is symmetrically slidably installed at the diagonal position of the workbench (3); a limiting rod (16) is symmetrically fixedly installed at the diagonal position of the workbench (3); the limiting rod (16) is slidably connected to the connecting plate (15); a guide rod (17) is fixedly installed at the end of the connecting plate (15); the guide rod (17) is slidably connected to the reducing guide groove (14); a positioning groove (18) is symmetrically provided at one end of the connecting plate (15) away from the guide rod (17); a positioning rod (19) is fixedly installed at the end of the movable frame (4); the positioning rod (19) is slidably connected to the positioning groove (18).

4. A clamping tool for door frame welding according to claim 3, characterized in that: A support plate (20) for supporting the door frame is integrally fixedly mounted on the middle upper surface of the movable frame (4).

5. The clamping tool for door frame welding according to claim 4, characterized in that: The end of the movable frame (4) away from the positioning rod (19) is symmetrically provided with a sliding hole (21); a sliding rod (22) is symmetrically fixedly installed on one side of the L-shaped extrusion plate (7); the sliding rod (22) is slidably connected to the sliding hole (21); a buffer spring (23) is sleeved on the outer side of the end of the sliding rod (22) away from the L-shaped extrusion plate (7); one end of the buffer spring (23) is fixedly connected to the end of the sliding rod (22) away from the L-shaped extrusion plate (7); and the other end of the buffer spring (23) is fixedly connected to one side of the movable frame (4).

6. The clamping tool for door frame welding according to claim 2, characterized in that: A moving ring (24) is slidably mounted on the inner wall of the top of the fixed frame (1), and a pushing ring (25) is integrally fixedly mounted in the middle of the moving ring (24), wherein the outer ring of the pushing ring (25) is arranged in close contact with the inner wall of the fixed frame (1).

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