Civil air defense door frame assembling and welding tool clamp

Abstract

The utility model relates to the technical field of tool clamps, in particular to a civil air defense door frame assembling and welding tool clamp which comprises a cross-shaped telescopic device, two supports and four frame clamping assemblies. A telescopic frame assembly is connected between the two supports. The cross-shaped telescopic device comprises a long-edge telescopic assembly and two groups of short-edge telescopic assemblies; the long edge telescopic assembly comprises a first sleeve and two first movable rods; the short edge telescopic assembly comprises a second sleeve and a second movable rod; the four frame clamping assemblies are connected with the outer ends of the two first movable rods and the outer ends of the two second movable rods correspondingly. The two sets of frame clamping assemblies connected with the long edge telescopic assemblies are both connected with installation shafts, and the two installation shafts are rotationally installed on the supports on the two sides correspondingly. According to the civil air defense door frame, the rotation angle of the civil air defense door frame can be conveniently adjusted, so that subsequent welding work is facilitated, and the civil air defense door frame can be folded and contracted after being used so as to be convenient to transport and store.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a tooling and fixture for assembling and welding civil defense door frames. Background Technology

[0002] For welding door frames, the four side edges of the door frame need to be assembled first, and then the door frame is welded.

[0003] Patent CN215316639U discloses a welding fixture for assembling civil defense door frames, including a U-shaped frame composed of four elongated strips. Each of the four elongated strips is equipped with two sets of clamping mechanisms. Each clamping mechanism includes a circular guide rod fixed to the lower side of the elongated strip by a connecting block. A movable sleeve is slidably fitted onto the circular guide rod. A limiting block is fixed to the inner side of the circular guide rod. A return spring fitted onto the circular guide rod is provided between the limiting block and the movable sleeve. An elongated through groove is provided on the upper side of the movable sleeve, extending outward from the elongated strip. A clamping block is fixed to the upper side of the movable sleeve, and the upper side of the clamping block passes through an elongated through hole. A U-shaped driving block is fixed to the outer circumference of the movable sleeve by a connecting rod. A rotating clamping rod is rotatably provided on the inner side of the elongated strip.

[0004] The aforementioned patents still have the following technical defects: because multiple sides of the civil defense door frame need to be welded, and the above solution requires manual flipping after welding another side, the operation is difficult and the implementation efficiency is low. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a welding fixture for assembling civil defense door frames.

[0006] The technical solution of this utility model is a welding fixture for assembling and welding a civil defense door frame, which includes a cross telescopic device, two brackets and four sets of frame clamping components.

[0007] Two supports are arranged side by side, and a telescopic frame assembly connects the two supports. The cross telescopic device includes a long-side telescopic assembly and two sets of short-side telescopic assemblies. The long-side telescopic assembly includes a first sleeve and two first movable rods. The first sleeve has two sliding holes, which are arranged side by side and pass through both ends of the first sleeve. The ends of the two first movable rods are slidably installed in the sliding holes on both sides. A first drive assembly for driving the corresponding first movable rod to move is installed at both ends of the first sleeve. The two sets of short-side telescopic assemblies are vertically connected to both sides of the first sleeve. The short-side telescopic assembly includes a second sleeve and a second movable rod. The second sleeve is connected to the first sleeve, and the end of the second movable rod is slidably installed inside the second sleeve. A second drive assembly for driving the second movable rod to move is installed on the second sleeve. Four sets of frame clamping assemblies are respectively connected to the outer ends of the two first movable rods and the two second movable rods. The two sets of frame clamping assemblies connected to the long-side telescopic assembly are each connected to a mounting shaft. The two mounting shafts are rotatably installed on the two side supports, and a power assembly for driving the mounting shaft to rotate is installed on one side support.

[0008] Preferably, the frame clamping assembly includes a U-shaped clamping frame, a first clamping plate, a first screw, and a first handwheel. The U-shaped clamping frame is fixedly connected to a first movable rod or a second movable rod on the corresponding side. The first clamping plate is slidably installed inside the U-shaped clamping frame. The first screw is threadedly connected to the U-shaped clamping frame. The first handwheel is connected to the outer end of the first screw.

[0009] Preferably, a rotating plate is rotatably mounted on the outer ends of the two first movable rods and the two second movable rods. A second screw is threaded onto the rotating plate, and a second clamping plate and a second handwheel are respectively connected to both ends of the second screw.

[0010] Preferably, the power assembly includes a cylinder, a rack, and a gear ring. The cylinder is mounted on a bracket, the rack is connected to the cylinder output shaft, and the gear ring is mounted on the outer periphery of the mounting shaft and meshes with the rack.

[0011] Preferably, the first drive assembly includes a third screw, a first bevel gear, and a third bevel gear. The third screw is rotatably installed inside the first sleeve. The first movable rod is threadedly connected to the corresponding third screw. The first bevel gear is connected to the end of the third screw. The third bevel gear is rotatably installed inside the first sleeve and meshes with the first bevel gear. The shaft of the third bevel gear is located outside the first sleeve and is connected to a knob.

[0012] Preferably, the second drive assembly includes a fourth screw, a second bevel gear, and a fourth bevel gear. The fourth screw is rotatably installed inside the second sleeve. The second movable rod is threadedly connected to the corresponding fourth screw. The second bevel gear is connected to the end of the fourth screw. The fourth bevel gear is rotatably installed inside the second sleeve and meshes with the second bevel gear. The shaft of the fourth bevel gear is located outside the second sleeve and is connected to a knob.

[0013] Preferably, the telescopic frame assembly includes a third sleeve and a third movable rod, the third sleeve and the third movable rod being connected to the two side supports respectively, and the end of the third movable rod being slidably mounted on the inner side of the third sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] 1. This technical solution enables multi-angle adjustment of the air-raid shelter door frame after positioning and clamping, thereby facilitating the welding work of technicians, reducing the range of movement of technicians' bodies, and indirectly improving welding efficiency.

[0016] 2. The cross telescopic device can be extended and adjusted, and when the cross telescopic device is retracted, it will also drive the supports on both sides to move closer, thereby expanding the extension range of the device and making the device easy to transport and store. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the air-raid shelter door frame after clamping.

[0019] Figure 3 This is a partial cross-sectional view of the first and second sleeves in this utility model.

[0020] Figure 4 This is a cross-sectional view of the bracket in this utility model.

[0021] Reference numerals: 1. Bracket; 2. U-shaped clamping frame; 3. First clamping plate; 4. First screw; 5. First handwheel; 7. First sleeve; 8. First movable rod; 9. Rotating plate; 10. Second clamping plate; 11. Second screw; 12. Second handwheel; 14. Second sleeve; 15. Second movable rod; 16. Third sleeve; 17. Third movable rod; 181. Third screw; 182. Fourth screw; 191. First bevel gear; 192. Second bevel gear; 193. Third bevel gear; 194. Fourth bevel gear; 20. Knob; 21. Cylinder; 22. Mounting shaft; 23. Rack; 24. Gear ring. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-4 As shown in the figure, the civil defense door frame assembly and welding fixture proposed in this embodiment includes a cross telescopic device, two brackets 1 and four sets of frame clamping components.

[0024] Two supports 1 are arranged side by side, and a telescopic frame assembly is connected between the two supports 1. The telescopic frame assembly includes a third sleeve 16 and a third movable rod 17. The third sleeve 16 and the third movable rod 17 are respectively connected to the two supports 1. The end of the third movable rod 17 is slidably installed on the inner side of the third sleeve 16.

[0025] The cross-shaped telescopic device includes a long-side telescopic assembly and two sets of short-side telescopic assemblies. The long-side telescopic assembly includes a first sleeve 7 and two first movable rods 8. The first sleeve 7 has two sliding holes, which are arranged side by side and pass through both ends of the first sleeve 7. The ends of the two first movable rods 8 are slidably installed in the sliding holes on both sides. Each end of the first sleeve 7 is equipped with a first driving assembly for driving the corresponding first movable rod 8 to move. The first driving assembly includes a third screw 181, a first bevel gear 191, and a third bevel gear 193. The third screw 181 is rotatably installed in the first sleeve 7. The first movable rod 8 is threadedly connected to the corresponding third screw 181. The first bevel gear 191 is connected to the end of the third screw 181. The third bevel gear 193 is rotatably installed in the first sleeve 7 and meshes with the first bevel gear 191. The shaft of the third bevel gear 193 is located in the first sleeve. 7 is externally connected to a knob 20; two sets of short-side telescopic components are vertically connected to both sides of the first sleeve 7. The short-side telescopic components include a second sleeve 14 and a second movable rod 15. The second sleeve 14 is connected to the first sleeve 7. The end of the second movable rod 15 is slidably installed inside the second sleeve 14. A second drive component for driving the second movable rod 15 to move is installed on the second sleeve 14. The second drive component includes a fourth screw 182, a second bevel gear 192 and a fourth bevel gear 194. The fourth screw 182 is rotatably installed inside the second sleeve 14. The second movable rod 15 is threadedly connected to the corresponding fourth screw 182. The second bevel gear 192 is connected to the end of the fourth screw 182. The fourth bevel gear 194 is rotatably installed inside the second sleeve 14 and meshes with the second bevel gear 192. The shaft of the fourth bevel gear 194 is located outside the second sleeve 14 and is connected to a knob 20.

[0026] The four sets of frame clamping assemblies are respectively connected to the outer ends of the two first movable rods 8 and the two second movable rods 15. The frame clamping assembly includes a U-shaped clamping frame 2, a first clamping plate 3, a first screw 4 and a first handwheel 5. The U-shaped clamping frame 2 is fixedly connected to the first movable rod 8 or the second movable rod 15 on the corresponding side. The U-shaped clamping frame 2 is fixedly connected to the mounting shaft 22 on the corresponding side. The first clamping plate 3 is slidably installed on the inner side of the U-shaped clamping frame 2. The first screw 4 is threadedly connected to the U-shaped clamping frame 2. The first handwheel 5 is connected to the outer end of the first screw 4. The two sets of frame clamping assemblies connected to the long side telescopic assembly are each connected to a mounting shaft 22. The two mounting shafts 22 are rotatably installed on the two side brackets 1 respectively.

[0027] A power assembly for driving the installation shaft 22 to rotate is installed on one side bracket 1. The power assembly includes a cylinder 21, a rack 23, and a gear ring 24. The cylinder 21 is mounted on the bracket 1 and is a servo cylinder. The rack 23 is connected to the output shaft of the cylinder 21. The gear ring 24 is mounted on the outer circumference of the installation shaft 22 and meshes with the rack 23. Furthermore, in order to control the cylinder 21, a PLC controller is also provided in this technical solution. It is electrically connected to the cylinder 21. The cylinder 21 works to drive the rack 23 to move. The movement of the rack 23 drives the gear ring 24 to rotate, which in turn drives the installation shaft 22 to rotate. The installation shaft 22 then drives the air defense door frame to rotate around it.

[0028] In this embodiment, when welding the air-raid shelter door frame, the two short side frames of the air-raid shelter door frame are placed in the two U-shaped clamping frames 2 on both sides of the long side telescopic assembly, so that the two short side frames are parallel and aligned. At this time, the opening of the U-shaped clamping frame 2 faces upward. The first handwheel 5 is set to drive the first screw 4 to rotate. The rotation of the first screw 4 pushes the first clamping plate 3 to slide on the U-shaped clamping frame 2 until the first clamping plate 3 abuts against the short side frame. After the two short side frames are clamped and positioned, the two long side frames are fixed. The two long side frames are placed on the other two U-shaped clamping frames 2, and then the two long side frames are fixed in a similar way as described above.

[0029] After the frame is fixed, the two sets of first drive components can drive the two first movable rods 8 to move, which can adjust the extension length of the long side telescopic component. The two sets of second drive components can drive the two second movable rods 15 to move, which can adjust the length of the short side telescopic component. Under the adjustment of the first drive components and the second drive components, the two long frame and the two short frame can form a rectangular structure, thus completing the fixing of the civil defense door frame.

[0030] During the welding process, the installed power unit can drive the air defense door frame to rotate around the installation axis 22, thereby adjusting the rotation angle of the air defense door frame, reducing the range of movement of the worker's body, and indirectly improving the welding efficiency of the air defense door frame.

[0031] Example 2

[0032] like Figure 1 and Figure 2As shown in the figure, the civil defense door frame assembly and welding fixture proposed in this embodiment, compared with the first embodiment, has a rotating plate 9 rotatably installed on the outer ends of the two first movable rods 8 and the two second movable rods 15. The rotating plate 9 is threaded with a second screw 11, and the two ends of the second screw 11 are respectively connected to a second clamping plate 10 and a second handwheel 12. Before the frame is placed inside the U-shaped clamping frame 2, the second clamping plate 10 is located above one side of the U-shaped clamping frame 2. After the first clamping plate 3 clamps and fixes the frame, the rotating plate 9 is driven to rotate so that the second clamping plate 10 moves to the position directly above the frame. The second screw 11 is driven to rotate by the second handwheel 12 so that the second clamping plate 10 moves downward until the second clamping plate 10 fixes the upper end of the frame. At this time, the frame is fixed on all four sides. This structure is designed to prevent the civil defense frame from sliding downward after being flipped over, thus improving the fixing effect of the civil defense door frame.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A welding fixture for assembling a civil defense door frame, characterized in that, It includes a cross telescopic device, two brackets (1) and four sets of frame clamping components; Two supports (1) are arranged side by side, and a telescopic frame assembly is connected between the two supports (1); the cross telescopic device includes a long side telescopic assembly and two sets of short side telescopic assemblies; the long side telescopic assembly includes a first sleeve (7) and two first movable rods (8), two sliding holes are opened on the first sleeve (7), the two sliding holes are arranged side by side and pass through both ends of the first sleeve (7), and the ends of the two first movable rods (8) are slidably installed in the sliding holes on both sides respectively; a first driving assembly for driving the corresponding side first movable rod (8) to move is installed at both ends of the first sleeve (7); the two sets of short side telescopic assemblies are vertically connected to both sides of the first sleeve (7), and the short side telescopic assembly includes a second sleeve (14) The second movable rod (15) and the second sleeve (14) are connected to the first sleeve (7). The end of the second movable rod (15) is slidably installed on the inner side of the second sleeve (14). The second sleeve (14) is equipped with a second drive assembly for driving the second movable rod (15) to move. The four sets of frame clamping assemblies are respectively connected to the outer ends of the two first movable rods (8) and the outer ends of the two second movable rods (15). The two sets of frame clamping assemblies connected to the long side telescopic assembly are each connected to a mounting shaft (22). The two mounting shafts (22) are respectively rotatably installed on the two side brackets (1). A power assembly for driving the mounting shaft (22) to rotate is installed on one side bracket (1).

2. The man door frame assembly welding fixture of claim 1, wherein, The frame clamping assembly includes a U-shaped clamping frame (2), a first clamping plate (3), a first screw (4), and a first handwheel (5). The U-shaped clamping frame (2) is fixedly connected to the first movable rod (8) or the second movable rod (15) on the corresponding side. The first clamping plate (3) is slidably installed on the inner side of the U-shaped clamping frame (2). The first screw (4) is threadedly connected to the U-shaped clamping frame (2). The first handwheel (5) is connected to the outer end of the first screw (4).

3. The man door frame assembly welding fixture of claim 2, wherein, Rotating plates (9) are rotatably mounted on the outer ends of the two first movable rods (8) and the two second movable rods (15). A second screw (11) is threaded onto the rotating plate (9). A second clamping plate (10) and a second handwheel (12) are respectively connected to both ends of the second screw (11).

4. The man door frame assembly welding fixture of claim 1, wherein, The power assembly includes a cylinder (21), a rack (23) and a gear ring (24). The cylinder (21) is mounted on a bracket (1), the rack (23) is connected to the output shaft of the cylinder (21), and the gear ring (24) is mounted on the outer periphery of the mounting shaft (22) and meshes with the rack (23).

5. The assembly and welding fixture for a civil defense door frame according to claim 1, characterized in that, The first drive assembly includes a third screw (181), a first bevel gear (191), and a third bevel gear (193). The third screw (181) is rotatably mounted inside the first sleeve (7). The first movable rod (8) is threadedly connected to the corresponding third screw (181). The first bevel gear (191) is connected to the end of the third screw (181). The third bevel gear (193) is rotatably mounted inside the first sleeve (7) and meshes with the first bevel gear (191). The shaft of the third bevel gear (193) is located outside the first sleeve (7) and is connected to a knob (20).

6. The man door frame assembly welding fixture of claim 1, wherein, The second drive assembly includes a fourth screw (182), a second bevel gear (192), and a fourth bevel gear (194). The fourth screw (182) is rotatably mounted inside the second sleeve (14). The second movable rod (15) is threadedly connected to the corresponding fourth screw (182). The second bevel gear (192) is connected to the end of the fourth screw (182). The fourth bevel gear (194) is rotatably mounted inside the second sleeve (14) and meshes with the second bevel gear (192). The shaft of the fourth bevel gear (194) is located outside the second sleeve (14) and is connected to a knob (20).

7. The man door frame assembly welding fixture of claim 1, wherein, The telescopic frame assembly includes a third sleeve (16) and a third movable rod (17). The third sleeve (16) and the third movable rod (17) are respectively connected to the two side supports (1). The end of the third movable rod (17) is slidably installed on the inner side of the third sleeve (16).

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