Door frame welding device

Abstract

The utility model discloses a door frame welding device which comprises a welding assembly installed on one side of a welding base, an abutting assembly is arranged at the top of the welding base, a limiting part for positioning a door frame body is installed at the top of the welding base, the door frame body comprises a transverse frame and a longitudinal frame, and the limiting part comprises a driving motor and a rotating shaft. The driving motor is fixed to the inner wall of the top of the welding base, two rotating discs are fixed to the circumferential outer wall of the rotating shaft through pins, two crank-rocker mechanisms are installed at the tops of the rotating discs, and elastic pieces are installed at one ends of the crank-rocker mechanisms. The driving motor drives the rotating shaft to rotate, the two sets of rotating discs are synchronously driven to rotate, circular motion of the rotating discs is converted into transverse motion of the elastic piece and the pressing connection plate through the crank and rocker mechanisms, efficient and accurate positioning and limiting of the door frame body are achieved, and the four sets of crank and rocker mechanisms synchronously move; and two groups of transverse frames and two groups of longitudinal frames can be limited at the same time, so that the working efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of door frame welding technology, and in particular to a door frame welding device. Background Technology

[0002] In the door and window manufacturing industry, the welding of door frames is a crucial step. Existing welding equipment often suffers from inaccurate positioning and poor adaptability when dealing with workpieces with specific shape and size requirements, such as door frames. In particular, for door frames of different sizes, it is necessary to frequently change fixtures or adjust equipment, which not only increases the difficulty of operation but also reduces production efficiency.

[0003] A search revealed Chinese patent application number 202222297221.2, which discloses a welding device for a door frame of civil defense equipment. The device includes a placement platform and a workbench fixedly mounted on the placement platform. The workbench is equipped with multiple positioning mechanisms for fixing crossbeams and clamping mechanisms for fixing two longitudinal beams. A first rodless cylinder is fixedly mounted on the placement platform; the first rodless cylinder is horizontally positioned. A second rodless cylinder is fixedly mounted on the piston of the first rodless cylinder, and the second rodless cylinder is vertically positioned. A third rodless cylinder is fixedly mounted on the piston of the second rodless cylinder, and the third rodless cylinder is horizontally positioned and perpendicular to the length direction of the first rodless cylinder.

[0004] The door frame welding device in the aforementioned patent has the following shortcomings: during the process of fixing the crossbeams and longitudinal beams, it is necessary to use the first clamping plate and the second clamping plate to fix the longitudinal beams, and at the same time, it is also necessary to use the first clamping block and the second clamping block to fix the crossbeams. When multiple door frames need to be welded, the process of fixing the crossbeams and longitudinal beams consumes a lot of time, which will affect the welding efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a door frame welding device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door frame welding device includes a welding assembly installed on one side of a welding seat. An abutment assembly is provided on the top of the welding seat, and a limiting part for positioning the main body of the door frame is installed on the top of the welding seat. The limiting part includes a drive motor and a rotating shaft. The drive motor is fixed to the inner wall of the top of the welding seat, and two sets of rotating disks are fixed to the outer wall of the rotating shaft by pins. Two sets of crank-rocker mechanisms are installed on the top of the rotating disks, and an elastic element is installed at one end of the crank-rocker mechanism, and a pressure plate is fixed at one end of the elastic element.

[0008] As a further embodiment of this utility model: the crank rocker mechanism includes a slide rod and a vertical plate. The vertical plate is fixed to the outer wall of the top of the welding seat, and the slide rod is movably connected to the inner wall of the through hole opened on the surface of the vertical plate. The elastic element is fixed between the slide rod and the pressing plate.

[0009] As a further improvement of this utility model: a U-shaped frame is welded to one end of the slide rod, and a swing arm is movably connected between the U-shaped frame and the rotating disk.

[0010] As a further embodiment of this utility model: the elastic element includes a sleeve and a T-shaped rod, the sleeve and the T-shaped rod are movably connected, the T-shaped rod is welded to the outer wall of one side of the pressing plate, the sleeve is welded to one end of the sliding rod, and a spring is engaged between the outer wall of one side of the T-shaped rod and the inner wall of one side of the sleeve.

[0011] As a further embodiment of this utility model: the abutting component includes an abutting plate and a slot, the slot being formed at the bottom of the mounting groove on the surface of the welding seat, and the abutting plate being connected to the slot by a plug-in method.

[0012] As a further embodiment of this utility model: the welding assembly includes a welding head and a placement seat, the placement seat is fixed to the outer wall of one side of the welding seat, and the welding head is placed in a notch opened on the surface of the placement seat.

[0013] As a further improvement of this utility model, a base is fixed to the bottom outer wall of the welding seat.

[0014] As a further improvement of this utility model, the door frame body includes a horizontal frame and a vertical frame.

[0015] Compared with the prior art, the present invention provides a door frame welding device, which has the following beneficial effects:

[0016] This application uses a drive motor to drive the rotating shaft to rotate, which in turn drives two sets of rotating disks to rotate. The circular motion of the rotating disks is converted into the lateral motion of the elastic element and the pressing plate through a crank-rocker mechanism, which realizes efficient and precise positioning and limiting of the door frame body. The four sets of crank-rocker mechanisms move synchronously, which can limit the two sets of horizontal frames and the two sets of vertical frames at the same time, significantly improving work efficiency.

[0017] The device features an ingeniously designed abutment assembly that connects to the slots via an insertion method. Each mounting slot has multiple slots at its bottom, allowing for flexible selection of the slot position for inserting the abutment plate according to the different lengths of the door frame body. This ensures that the vertical distance between two opposing abutment plates matches the length of the door frame body.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the overall structure of the limiting component of this utility model.

[0023] Figure 5 This is a partial structural diagram of the limiting component of this utility model.

[0024] Figure 6 This is a schematic diagram of the exploded structure of the welding assembly of this utility model.

[0025] In the diagram: 1. Base; 2. Horizontal frame; 3. Pressing plate; 4. Vertical frame; 5. Welding seat; 6. Welding head; 7. Rotating disk; 8. Contact plate; 9. Slot; 10. Drive motor; 11. U-shaped frame; 12. Swing arm; 13. Slide rod; 14. Sleeve; 15. T-shaped rod; 16. Vertical plate; 17. Rotating shaft; 18. Spring; 19. Placement seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Door frame welding equipment, such as Figures 1 to 6 As shown, the welding assembly is installed on one side of the welding base 5. The welding base 5 is provided with an abutment assembly on its top and a limiting part for positioning the door frame body is installed on its top. The door frame body includes a horizontal frame 2 and a vertical frame 4. The limiting part includes a drive motor 10 and a rotating shaft 17. The drive motor 10 is fixed to the inner wall of the top of the welding base 5 by bolts, and two sets of rotating disks 7 are fixed to the outer circumference of the rotating shaft 17 by pins. Two sets of crank rocker mechanisms are installed on the top of the rotating disks 7, and an elastic element is installed at one end of the crank rocker mechanism, and a pressure plate 3 is fixed at one end of the elastic element.

[0028] When welding is required on the main body of the door frame, the horizontal frame 2 and the vertical frame 4 are first placed on the welding seat 5, and the sides of the horizontal frame 2 and the vertical frame 4 are aligned. The abutting component can be used to abut one side of the horizontal frame 2 or the vertical frame 4. When the other side of the horizontal frame 2 or the vertical frame 4 needs to be abutted, the drive motor 10 drives the rotating shaft 17 to rotate. During the rotation of the rotating shaft 17, the two sets of rotating disks 7 are driven to rotate simultaneously. The crank rocker mechanism converts the circumferential motion of the rotating disk 7 into the lateral motion of the elastic element and the pressing plate 3. After the lateral motion, the pressing plate 3 finally abuts against the other side of the horizontal frame 2 or the vertical frame 4. At this time, the output end of the drive motor 10 remains stationary, so that the pressing plate 3 cooperates with the abutting component to limit the horizontal frame 2 or the vertical frame 4.

[0029] In this embodiment, four sets of crank-rocker mechanisms are provided. The four sets of crank-rocker mechanisms can move synchronously to drive their corresponding pressing plates 3 to move, thereby simultaneously limiting the two sets of horizontal frames 2 and the two sets of vertical frames 4 of the door frame body, improving work efficiency.

[0030] The crank rocker mechanism includes a slide rod 13 and a vertical plate 16. The vertical plate 16 is fixed to the top outer wall of the welding seat 5 by bolts, and the slide rod 13 is slidably connected to the inner wall of the through hole opened on the surface of the vertical plate 16. A U-shaped frame 11 is welded to one end of the slide rod 13, and a swing arm 12 is rotatably connected between the U-shaped frame 11 and the rotating disk 7. The elastic element is fixed between the slide rod 13 and the pressing plate 3.

[0031] When the drive motor 10 drives the rotating disk 7 and the rotating shaft 17 to rotate, the swing arm 12 converts the circular motion of the rotating disk 7 into the lateral movement of the slide rod 13 and the U-shaped frame 11 along the vertical plate 16, so that the pressing plate 3 moves under the drive of the slide rod 13 and abuts and limits the side of the horizontal frame 2 or the vertical frame 4.

[0032] The elastic element includes a sleeve 14 and a T-shaped rod 15, which are slidably connected. The T-shaped rod 15 is welded to the outer wall of one side of the pressure plate 3, and the sleeve 14 is welded to one end of the slide rod 13. A spring 18 is engaged between the outer wall of one side of the T-shaped rod 15 and the inner wall of one side of the sleeve 14.

[0033] Since the lengths of the horizontal frame 2 and the vertical frame 4 are different, the elastic force of the spring 18 can ensure that the multiple pressing plates 3 can eventually fit against the side wall of the horizontal frame 2 or the vertical frame 4 during the synchronous movement, thus avoiding the problem of the pressing plates 3 getting stuck during the movement.

[0034] The contact component includes a contact plate 8 and a slot 9. The slot 9 is formed at the bottom of the mounting groove on the surface of the welding base 5, and the contact plate 8 is connected to the slot 9 by a plug-in method.

[0035] Each mounting slot has multiple sets of slots 9 at the bottom. When welding the main body of the door frame is required, for horizontal frames 2 and vertical frames 4 of different lengths, the slots 9 into which the abutment plates 8 are inserted are selected to ensure that the vertical distance between the two opposing abutment plates 8 and the length of the horizontal frame 2 or vertical frame 4 are adapted, so that door frame bodies of different sizes can be welded.

[0036] The welding assembly includes a welding head 6 and a placement seat 19. The placement seat 19 is fixed to the outer wall of one side of the welding seat 5 by bolts, and the welding head 6 is placed in a notch opened on the surface of the placement seat 19.

[0037] After the main body of the door frame is limited, the welding head 6 and the welding machine body (not shown) are connected, so that the welding head 6 is used to weld and fix the connection between the horizontal frame 2 and the vertical frame 4. In this embodiment, the welding method can be gas shielded welding or resistance welding. The welding principle of the two welding methods is existing technology and will not be described in detail here.

[0038] The base 1 is fixed to the bottom outer wall of the welding seat 5 by bolts.

[0039] The base 1 can support the welding seat 5, thereby ensuring the stability of the welding seat 5.

[0040] Working principle: The door frame body to be welded, including the horizontal frame 2 and the vertical frame 4, is placed on the welding seat 5, and their sides are initially aligned. First, the door frame body is positioned on one side using the abutment assembly. The abutment plate 8 is connected to the slot 9 on the surface of the welding seat 5 by a plug-in method. According to the length of the door frame body, a suitable slot 9 is selected to insert the abutment plate 8, ensuring that the abutment plate 8 fits tightly against one side of the door frame body. The drive motor 10 is started. The drive motor 10 is fixed to the inner wall of the top of the welding seat 5 by bolts. The drive motor 10 drives the rotating shaft 17 to rotate. Two sets of rotating disks 7 are fixed to the outer circumference of the rotating shaft 17 by pins. As the rotating shaft 17 rotates, the two sets of rotating disks 7 rotate synchronously. Two sets of crank rocker mechanisms are installed on the top of the rotating disks 7, and the swing arm 12 rotates in conjunction with the rotation. Connected between the U-shaped frame 11 and the rotating disk 7, the circular motion of the rotating disk 7 is converted into the lateral motion of the slide rod 13 and the U-shaped frame 11. With the lateral movement of the slide rod 13, the pressing plate 3, under the elastic force of the spring 18, tightly fits against the other side of the door frame body, realizing the precise positioning and limiting of the door frame body. Using four sets of crank rocker mechanisms, the corresponding pressing plates 3 can be moved synchronously to simultaneously limit the two sets of horizontal frames 2 and two sets of vertical frames 4 of the door frame body, improving work efficiency. After the door frame body is precisely positioned and limited, the welding head 6 is taken out from the placement seat 19 and connected to the welding machine body. According to actual needs, gas shielded welding or resistance welding is selected, and the welding head 6 is used to weld and fix the connection between the horizontal frames 2 and the vertical frames 4.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Door frame welding device, comprising a welding assembly mounted on one side of a welding seat (5), characterized in that, The welding seat (5) is provided with a resisting assembly on the top, and a limiting part for positioning the door frame body is installed on the top of the welding seat (5), the limiting part comprises a driving motor (10) and a rotating shaft (17), the driving motor (10) is fixed to the inner wall of the top of the welding seat (5), and the circumferential outer wall of the rotating shaft (17) is fixed with two groups of rotating discs (7) through a pin, and the top of the rotating disc (7) is installed with two groups of crank rocker mechanisms, one end of the crank rocker mechanism is installed with an elastic piece, and one end of the elastic piece is fixed with a pressure plate (3).

2. The door frame welding apparatus of claim 1, wherein, The crank rocker mechanism comprises a sliding rod (13) and a vertical plate (16), the vertical plate (16) is fixed to the outer wall of the top of the welding seat (5), and the sliding rod (13) is movably connected to the inner wall of the through hole formed in the surface of the vertical plate (16), and the elastic piece is fixed between the sliding rod (13) and the pressure plate (3).

3. The door frame welding apparatus of claim 2, wherein, One end of the sliding rod (13) is welded with a U-shaped frame (11), and the U-shaped frame (11) and the rotating disc (7) are movably connected.

4. The door frame welding apparatus of claim 3, wherein, The elastic piece comprises a sleeve (14) and a T-shaped rod (15), the sleeve (14) and the T-shaped rod (15) are movably connected, the T-shaped rod (15) is welded to the outer wall of one side of the pressure plate (3), the sleeve (14) is welded to one end of the sliding rod (13), and the spring (18) is clamped between the outer wall of one side of the T-shaped rod (15) and the inner wall of one side of the sleeve (14).

5. The door frame welding apparatus of claim 4, wherein, The resisting assembly comprises a resisting plate (8) and a clamping groove (9), the clamping groove (9) is formed in the bottom of the mounting groove on the surface of the welding seat (5), and the resisting plate (8) is connected with the clamping groove (9) through a plug-in mode.

6. The door frame welding apparatus of claim 5, wherein, The welding assembly comprises a welding head (6) and a placing seat (19), the placing seat (19) is fixed to the outer wall of one side of the welding seat (5), and the welding head (6) is placed in the gap formed in the surface of the placing seat (19).

7. The door frame welding apparatus of claim 6, wherein, The bottom outer wall of the welding seat (5) is fixed with a base (1).

8. The door frame welding apparatus of claim 7, wherein, The door frame body comprises a horizontal frame (2) and a vertical frame (4).

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