Middle door inner plate repair welding clamp

Abstract

The utility model relates to the technical field of clamps, in particular to a middle door inner plate repair welding clamp which comprises a machining platform and a plurality of clamping mechanisms connected to the machining platform. The clamping mechanism comprises a mounting assembly fixedly connected to the machining platform and a clamping assembly connected to the mounting assembly, and the opposite ends of the mounting assembly and the clamping assembly move in the direction close to or away from each other. The fixture has the advantage that the applicability of the fixture is improved.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, and in particular to a clamp for welding a middle door inner panel. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. A fixture is also called a clamp. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process of the process can be called a fixture. For example, welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common and are often referred to as fixtures.

[0003] When performing the repair welding process on the inner panel of the middle door on the machine tool, in order to ensure that the surface of the workpiece can meet the technical requirements such as size, geometric shape and relative position accuracy with other surfaces specified in the drawing, the workpiece must be installed (positioned) and clamped (clamped) before processing.

[0004] The fixture usually consists of a positioning element (to determine the correct position of the workpiece in the fixture), a clamping device, a tool guiding element (to determine the relative position of the tool and the workpiece or to guide the direction of the tool), and a dividing device (to enable the workpiece to complete several stations of processing in one installation.

[0005] Regarding the above-mentioned related technologies, since the surface of the middle door inner panel is usually an irregular surface and the shape of the middle door inner panel of each car door is often different, the user uses various types of clamps to clamp the middle door inner panel when performing repair welding processes on different middle door inner panels, which seriously wastes processing resources. Utility Model Content

[0006] In order to improve the applicability of the fixture, the present application provides a middle door inner panel repair welding fixture.

[0007] The present application provides a middle door inner panel repair welding fixture adopts the following technical solution:

[0008] A middle door inner panel repair welding fixture includes a processing platform and a clamping mechanism connected to the processing platform. The number of the clamping mechanisms is multiple. The clamping mechanism includes a mounting component fixedly connected to the processing platform and a clamping component connected to the mounting component. The facing ends of the mounting component and the clamping component move in a direction close to or away from each other.

[0009] By adopting the above technical solution, the gap size between the installation component and the clamping component can be adjusted. When the user performs repair welding on different middle door inner panels, the user can clamp the middle door inner panel by adjusting the gap size between the installation component and the clamping component. At the same time, for middle door inner panels of different shapes, multiple clamping mechanisms can be used to clamp different positions of the middle door inner panel to achieve the purpose of clamping different middle door inner panels. The user does not need to design multiple clamps, which improves the applicability of the clamp.

[0010] Optionally, the mounting assembly includes a base fixedly connected to the processing platform and a connecting plate fixedly connected to the base, and the clamping assembly is connected to the connecting plate.

[0011] By adopting the above technical solution, the base and the connecting plate provide a position for the clamping assembly, thereby achieving the basic purpose of clamping.

[0012] Optionally, the clamping assembly includes a clamping cylinder fixedly connected to the connecting plate and a clamping arm fixedly connected to the connecting plate, the clamping arm is rotatably connected to the connecting plate, the output end of the clamping cylinder is fixedly connected to one end of the clamping arm, the hinge position of the connecting plate is located below the output end of the clamping cylinder, and the end of the clamping arm away from its own hinge position moves toward or away from the connecting plate.

[0013] By adopting the above technical solution, when the output end position of the clamping cylinder changes, the clamping arm is driven to swing, so that the gap between the clamping arm and the connecting plate changes. When the middle door inner panel changes, the clamping of the middle door inner panel is completed by changing the size of the gap between the clamping arm and the connecting plate. At the same time, the clamping of different middle door inner panels is achieved by the swinging of the clamping arm, thereby improving the applicability of the clamp.

[0014] Optionally, the clamping assembly also includes an L-shaped connecting block detachably connected to the clamping arm, the L-shaped connecting block is located at one end of the clamping arm away from its own hinge position, and each of the clamping assemblies includes at least one L-shaped connecting block, which is connected to the clamping arm or the connecting plate.

[0015] By adopting the above technical solution, the user can adjust the number and installation position of the L-shaped connecting blocks according to the surface shape of the middle door inner panel, so that the clamp can stably clamp the middle door inner panel at the same time, and can stably clamp the middle door inner panel with different curvatures and shapes, thereby improving the applicability of the clamp.

[0016] Optionally, the clamping assembly further includes a positioning pin connected to the L-shaped connecting block, wherein the positioning pin passes through an end portion of the L-shaped connecting block and is fixedly connected to the L-shaped connecting block.

[0017] By adopting the above technical solution, the hole on the inner plate of the middle door can be positioned, making the clamping of the clamp more stable.

[0018] Optionally, it also includes a lifting mechanism connected to the processing platform, the lifting mechanism includes a lifting cylinder connected to the processing platform and a lifting frame fixedly connected to the lifting cylinder, the output end of the lifting cylinder is fixedly connected to the lifting frame, and the lifting frame moves in a direction approaching or away from the top surface of the processing platform.

[0019] By adopting the above technical solution, when the lifting cylinder is started, the middle door inner panel on the lifting frame can be lifted up to achieve the lifting and lowering of the middle door inner panel. There is no need for the user to manually move the middle door inner panel, which reduces the user's labor and improves work efficiency.

[0020] Optionally, the lifting mechanism also includes a guide rod slidably connected to the processing platform, the lifting cylinder is located at the center of the processing platform, the guide rod is fixedly connected to the bottom of the lifting frame, the guide rod and the output ends of the lifting cylinder both pass through the processing platform, and the guide rod is slidably connected to the processing platform along the vertical direction.

[0021] By adopting the above technical solution, the guide rod can make the movement of the jacking frame more stable, thereby improving the stability of the jacking movement.

[0022] Optionally, the guide rods are provided on both sides of the lifting cylinder, and the output end of the lifting cylinder is fixedly connected to the center position of the lifting frame.

[0023] By adopting the above technical solution, the jacking frame is subjected to uniform force, thereby improving the stability of the jacking movement.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] The clamping arm in the present application is rotatably connected to the connecting plate, and the clearance between the clamping arm and the connecting plate is adjusted by driving the clamping cylinder to clamp the inner panel of the middle door, thereby improving the applicability of the present application;

[0026] The present application adjusts the number and connection positions of the L-shaped connection blocks to achieve the purpose of clamping different positions and different models of the middle door inner panels, thereby improving the applicability of the present application;

[0027] The present application realizes the positioning of the center door inner panel by setting a positioning pin, thereby realizing the stable clamping of the center door inner panel;

[0028] The present application provides a lifting mechanism so that the inner panel of the middle door can be automatically lifted, thereby improving processing efficiency and making the lifting movement more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a middle door inner panel repair welding fixture disclosed in an embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram of the clamping mechanism in an embodiment of the present application.

[0031] Figure 3 It is a structural schematic diagram of the clamping mechanism in an embodiment of the present application.

[0032] Figure 4 It is a structural schematic diagram of the jacking mechanism in the embodiment of the present application.

[0033] Figure 5 It is a structural schematic diagram of the jacking mechanism in the embodiment of the present application.

[0034] Explanation of the accompanying drawings: 1. Processing platform; 2. Clamping mechanism; 21. Mounting assembly; 211. Base; 212. Connecting plate; 22. Clamping assembly; 221. Clamping cylinder; 222. Clamping arm; 2221. Hand-held rod; 223. L-shaped connecting block; 224. Locating pin; 3. Lifting mechanism; 31. Lifting cylinder; 32. Lifting frame; 321. Main beam; 322. Cross beam; 323. Vertical beam; 324. Lifting block; 33. Guide rod. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0036] At present, in order to improve the applicability of the clamp, an embodiment of the present application proposes a middle door inner panel repair welding clamp.

[0037] The embodiment of the present application discloses a middle door inner panel repair welding fixture. Figure 1-Figure 3A middle door inner panel repair welding fixture comprises a processing platform 1, a clamping mechanism 2 connected to the processing platform 1 and a lifting mechanism 3 connected to the processing platform 1, the number of the clamping mechanisms 2 is multiple, the clamping mechanism 2 comprises a mounting assembly 21 fixedly connected to the processing platform 1 and a clamping assembly 22 connected to the mounting assembly 21, the ends of the mounting assembly 21 and the clamping assembly 22 facing each other move in a direction of approaching or moving away from each other, the mounting assembly 21 comprises a base 211 fixedly connected to the processing platform 1 and a connecting member 22 fixedly connected to the base 211 The connecting plate 212 and the base 211 can be fixedly connected to the surface of the processing platform 1 by bolt connection. The connecting plate 212 can be connected to the side of the base 211 by bolt connection, and the top of the connecting plate 212 is higher than the top of the base 211. The clamping assembly 22 is connected to the connecting plate 212 to realize the installation of the clamping assembly 22. The clamping assembly 22 includes a clamping cylinder 221 fixedly connected to the connecting plate 212, a clamping arm 222 fixedly connected to the connecting plate 212, and a clamping arm 222 detachably connected to the clamping arm 222. The L-shaped connecting block 223, the clamping arm 222 is rotatably connected to the connecting plate, the bottom surface of the clamping arm 222 and the top surface of the connecting plate 212 are opposite to each other, the output end of the clamping cylinder 221 is fixedly connected to one end of the clamping arm 222, the hinge position of the connecting plate 212 is located below the output end of the clamping cylinder 221, and the end of the clamping arm 222 away from its own hinge position moves toward or away from the connecting plate 212. When the user starts the clamping cylinder 221, the output end of the clamping cylinder 221 drives the clamping arm 222 to move Its own hinged position is the center of the circle rotation, and the clamping action of the center door inner panel is realized by adjusting the gap size between the clamping arm 222 and the connecting plate 212. When the user processes different center door inner panels, the user can adjust the position of the base 211 and the number of clamping mechanisms 2 according to the actual processing position to achieve the clamping of the center door inner panel, realize the fixed connection of the connecting plate 212, and realize the installation of the clamping assembly 22. At the same time, it can also realize the clamping of center door inner panels of different shapes, thereby improving the applicability of the present application.

[0038] At the same time, the L-shaped connecting block 223 is located at one end of the clamping arm 222 away from the hinged position of the clamping arm 222. Each clamping assembly 22 includes at least one L-shaped connecting block 223. The L-shaped connecting block 223 is connected to the clamping arm 222 or the connecting plate 212. When the user clamps the middle door clamp, the number or installation position of the L-shaped connecting blocks is adjusted according to the shape of the middle door inner panel to achieve clamping of different positions of the middle door inner panel. For example, when it is necessary to clamp the edge of the middle door inner panel, since the edge of the middle door inner panel is mainly a thin plane, the user can clamp the end of the connecting plate 212 and the end of the clamping arm 222. An L-shaped connecting block 223 is installed on each part, and the short side end surfaces of the two L-shaped connecting blocks 223 are facing each other, and the edge of the middle door inner panel is clamped between the two L-shaped connecting blocks 223 to achieve clamping of the edge of the middle door inner panel; when it is necessary to clamp the internal protrusion or curved surface of the middle door inner panel, multiple L-shaped connecting blocks 223 can be connected in series to increase the extension length of the clamping mechanism 2 to achieve clamping of the inside of the middle door inner panel. By setting the L-shaped connecting block 223, different models of middle door inner panels and different positions of the middle door inner panels can be clamped, thereby improving the applicability of the clamp.

[0039] At the same time, refer to Figure 1-Figure 3 The clamping assembly 22 also includes a positioning pin 224 connected to the L-shaped connecting block 223. The positioning pin 224 passes through the end of the L-shaped connecting block 223 and is fixedly connected to the positioning pin 224. The number and position of the positioning pins 224 are determined by the number and position of the holes on the middle door inner plate. When clamping the middle door inner plate, the positioning pin 224 is inserted into the hole of the middle door inner plate to achieve positioning and improve the accuracy of clamping.

[0040] Reference Figure 3 A hand-held rod 2221 is provided at the top of the clamping arm 222. The hand-held rod 2221 is provided on the side surface of the clamping arm 222 away from the ground. The axis of the hand-held rod 2221 is parallel to the vertical direction. When the user clamps the middle door inner panel, the hand-held rod 2221 can be used to control and adjust the direction of the clamping arm 222, so that the user can adjust the direction of the clamping arm 222. At the same time, when performing repair welding on the middle door inner panel, the user can put his hand on the hand-held rod 2221 to rest and relieve user fatigue.

[0041] Reference Figure 4 and Figure 5The lifting mechanism 3 includes a lifting cylinder 31 connected to the processing platform 1, a lifting frame 32 fixedly connected to the lifting cylinder 31, and a guide rod 33 slidably connected to the processing platform 1. The lifting frame 32 includes a main beam 321, a cross beam 322 fixedly connected to the main beam 321, a vertical beam 323 fixedly connected to the cross beam 322, and a top block 324 fixedly connected to the end of the vertical beam 323. The length direction of the main beam 321 and the length direction of the cross beam 322 are both parallel to the horizontal direction. There are two cross beams 322, which are fixedly connected to the two ends of the main beam 321, and the length direction of the cross beam 322 is perpendicular to the horizontal direction. In the length direction of the main beam 321, the length direction of the vertical beam 323 is parallel to the vertical direction. The number of the vertical beams 323 and the number of the top blocks 324 are both four. The four vertical beams 323 are respectively fixedly connected to the ends of the cross beam 322. The top block 324 is located at the end of the vertical beam 323 away from the cross beam 322. The top block 324 is detachably connected to the middle door inner panel to achieve stable jacking. The lengths of the two cross beams 322 can be equal or unequal, and the lengths of the four vertical beams 323 can be equal or unequal. The relative lengths of the cross beam 322 and the relative lengths of the vertical beams 323 are determined by the shape of the middle door inner panel to achieve stable jacking of the middle door inner panel.

[0042] Reference Figure 4 and Figure 5 The output end of the lifting cylinder 31 is fixedly connected to the center position of the main beam 321, and the lifting frame 32 moves in the direction close to or away from the top surface of the processing platform 1 to achieve the purpose of driving the inner panel of the middle door to move in the vertical direction. The lifting cylinder 31 is located at the center position of the processing platform 1, and the guide rod 33 is fixedly connected to the bottom of the main beam 321. The guide rod 33 and the output end of the lifting cylinder 31 both pass through the processing platform 1. The guide rod 33 is slidably connected to the processing platform 1 in the vertical direction. Guide rods 33 are provided on both sides of the lifting cylinder 31, so that the force on the lifting frame 32 is more uniform.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A middle door inner panel repair welding fixture, characterized in that: The invention comprises a processing platform (1) and a clamping mechanism (2) connected to the processing platform (1), wherein the number of the clamping mechanisms (2) is plural, and the clamping mechanism (2) comprises a mounting component (21) fixedly connected to the processing platform (1) and a clamping component (22) connected to the mounting component (21), and the opposite ends of the mounting component (21) and the clamping component (22) move in a direction of approaching or moving away from each other.

2. A middle door inner panel repair welding fixture according to claim 1, characterized in that: The mounting assembly (21) comprises a base (211) fixedly connected to the processing platform (1) and a connecting plate (212) fixedly connected to the base (211), and the clamping assembly (22) is connected to the connecting plate (212).

3. A middle door inner panel repair welding fixture according to claim 2, characterized in that: The clamping assembly (22) comprises a clamping cylinder (221) fixedly connected to the connecting plate (212) and a clamping arm (222) fixedly connected to the connecting plate (212); the clamping arm (222) is rotatably connected to the connecting plate (212); the output end of the clamping cylinder (221) is fixedly connected to one end of the clamping arm (222); the hinge position of the connecting plate (212) is located below the output end of the clamping cylinder (221); and the end of the clamping arm (222) away from its hinge position moves in a direction approaching or away from the connecting plate (212).

4. A middle door inner panel repair welding fixture according to claim 3, characterized in that: The clamping assembly (22) further comprises an L-shaped connecting block (223) detachably connected to the clamping arm (222), wherein the L-shaped connecting block (223) is located at one end of the clamping arm (222) away from its own hinged position, and each of the clamping assemblies (22) comprises at least one L-shaped connecting block (223), wherein the L-shaped connecting block (223) is connected to the clamping arm (222) or the connecting plate (212).

5. The middle door inner panel repair welding fixture according to claim 4 is characterized in that: The clamping assembly (22) further comprises a positioning pin (224) connected to the L-shaped connecting block (223); the positioning pin (224) passes through an end of the L-shaped connecting block (223) and is fixedly connected to the positioning pin (224).

6. The middle door inner panel repair welding fixture according to claim 1, characterized in that: It also includes a lifting mechanism (3) connected to the processing platform (1), the lifting mechanism (3) including a lifting cylinder (31) connected to the processing platform (1) and a lifting frame (32) fixedly connected to the lifting cylinder (31), the output end of the lifting cylinder (31) is fixedly connected to the lifting frame (32), and the lifting frame (32) moves in a direction approaching or moving away from the top surface of the processing platform (1).

7. The middle door inner panel repair welding fixture according to claim 6 is characterized in that: The lifting mechanism (3) also includes a guide rod (33) slidably connected to the processing platform (1), the lifting cylinder (31) is located at the center of the processing platform (1), the guide rod (33) is fixedly connected to the bottom of the lifting frame (32), the output ends of the guide rod (33) and the lifting cylinder (31) both pass through the processing platform (1), and the guide rod (33) is slidably connected to the processing platform (1) along the vertical direction.

8. The middle door inner panel repair welding fixture according to claim 7, characterized in that: The guide rods (33) are arranged on both sides of the lifting cylinder (31), and the output end of the lifting cylinder (31) is fixedly connected to the center position of the lifting frame (32).

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