A welding tooling fixture with positioning function

Abstract

The utility model relates to the technical field of fixture, and disclose a kind of welding tool fixture with positioning function, to solve the shortcoming that the prior art is not easy to carry out multi-point stable clamping for irregular side shape workpiece. The utility model can flexibly change the size of clamping frame by the adjustable connection of positioning long plate, moving long plate and side moving plate, adapt to different length-width workpieces;The independent adjustable screw rod of vertex clamping assembly can precisely fit the irregular workpiece side edge convex curve multi-point;The connecting piece is matched with U-shaped clamping plate by abutting sleeve, to fix the adjusted plate, avoid displacement;The vertex clamping assembly is symmetrically distributed, and the screw rod clamping end is hemispherical, so that the workpiece is uniformly stressed left and right, and deformation is reduced;The rectangular structure of sliding block is convenient for single-handed screwing abutting sleeve, and the screw rod disc is convenient for adjusting, the L-shaped assembly plate and the moving support simplify assembly, reduce operation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a welding fixture with positioning function. Background Technology

[0002] Chinese Patent Publication No. CN222114020U discloses a welding fixture, which includes a worktable with a groove inside. Ball screws are inserted into both the left and right ends of the groove. When it is necessary to adjust the welding angle of the object, the welding angle can be adjusted by a second throttle, which improves the accuracy of the welding fixture and is a very practical welding fixture.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device mainly relies on the clamping plate to fix the workpiece. Since the clamping plate is sheet-like, it is mainly designed for workpieces with conventional shapes. When facing workpieces with irregular side shapes, it is difficult to achieve accurate positioning and stable clamping. For example, for workpieces with concave and convex curved sides, it cannot flexibly adjust the clamping point and force according to the curve changes, which easily leads to the workpiece not being firmly clamped and displacement during the welding process, seriously affecting the welding accuracy and quality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the existing technology is not easy to stably clamp workpieces with irregular side shapes at multiple points. To this end, we propose a welding fixture with positioning function.

[0005] To achieve the above objectives, this application adopts the following technical solution: a welding fixture with positioning function, comprising a positioning long plate and a movable long plate, the positioning long plate and the movable long plate being symmetrically distributed from left to right, an L-shaped assembly plate being uniformly welded on the side of the positioning long plate away from the movable long plate, multiple vertex clamping components being laterally arranged inside the positioning long plate and the movable long plate, each vertex clamping component including an internally threaded sleeve penetrating inside the positioning long plate and the movable long plate, a screw being threadedly connected to the internal thread of the internally threaded sleeve, and discs being fixed on both sides of the outer end of the screw, both sides of the bottom end of the positioning long plate and the movable long plate having sliding grooves, each sliding groove having a connecting piece inside, a side movable plate being connected between adjacent left and right connecting pieces, a guide hole being opened on one side of each side movable plate, and connecting pieces on one side penetrating through the guide hole, the movable long plate sliding left and right along the top of the side movable plate, and a movable bracket being welded to the bottom end of the side movable plate away from the positioning long plate.

[0006] Preferably, there are two sets of vertex clamping components, each set having eight vertex clamping components, and the left and right sets of vertex clamping components are symmetrically distributed.

[0007] Preferably, the end of the screw furthest from the disc is hemispherical, and the internal threaded sleeve, the positioning plate, and the moving plate are fixedly connected, with the length of the internal threaded sleeve being less than the length of the screw.

[0008] Preferably, the connector includes a slider that is slidably installed inside the slide groove. A threaded rod is fixed to the bottom end of the slider. The bottom end of the threaded rod passes through one side of the adjacent side moving plate or the interior of the adjacent guide hole. A U-shaped clamp is sleeved on the outside of the threaded rod. The U-shaped clamp is located at the top of the side moving plate. A pressure sleeve is threadedly connected to the outside of the threaded rod. The pressure sleeve is located at the bottom end of the side moving plate. A limit plate is fixed to the bottom end of the threaded rod.

[0009] Preferably, the slider has a rectangular cross-section, the groove has a T-shaped cross-section, and the slider slides back and forth along the groove.

[0010] Preferably, the U-shaped clamp and the threaded rod are movably connected, the distance between the two sides of the U-shaped clamp is adapted to the width of the positioning plate and the moving plate, the inner walls of the two sides of the U-shaped clamp abut against the outer walls of the positioning plate and the moving plate, and the bottom of the U-shaped clamp and the bottom of the positioning plate and the moving plate are both made of frosted material.

[0011] Preferably, the threaded rod and the side moving plate are connected vertically, the outer diameter of the top of the pressure sleeve is adapted to the width of the positioning plate and the moving plate, and the top of the pressure sleeve and the bottom of the side moving plate are both frosted.

[0012] The technical effects and advantages of this utility model are as follows: In this invention, the adjustable connection between the positioning plate, the moving plate, and the side moving plate allows for flexible changes in the size of the clamping frame to accommodate workpieces of different lengths and widths. Simultaneously, the independently adjustable screw in the apex clamping assembly enables precise multi-point fitting of irregular workpiece side profiles with their concave and convex curves. Furthermore, the connecting parts, through the cooperation of the pressure sleeve and the U-shaped clamping plate, tightly secure the adjusted plates, preventing displacement during clamping. The symmetrical distribution of the apex clamping assembly and the hemispherical clamping end of the screw ensure even force distribution on the workpiece, reducing deformation caused by uneven clamping force. The rectangular structure of the slider facilitates one-handed tightening of the pressure sleeve for fixation, while the disc design at the outer end of the screw allows for quick adjustment of the screw position. The L-shaped assembly plate and the moving bracket simplify the assembly process of the fixture and welding station, reducing operational difficulty. The overall structure allows for switching between different workpiece clamping modes without complex disassembly and assembly, increasing the fixture's reusability and reducing equipment costs for welding operations. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 These are three-dimensional structural diagrams of the vertex clamping component of this utility model. Figure 3 This is a three-dimensional structural diagram of the side-moving plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the connector of this utility model; Figure 5 This is a three-dimensional structural diagram of the side-moving plate distribution of this utility model.

[0014] Legend: 1. Positioning plate; 2. Moving plate; 3. Vertex clamping assembly; 31. Internal threaded sleeve; 32. Screw; 33. Disc; 4. Side moving plate; 41. Guide hole; 5. L-shaped assembly plate; 6. Moving bracket; 7. Slide groove; 8. Connector; 81. Threaded rod; 82. Slider; 83. Limiting plate; 84. Pressing sleeve; 85. U-shaped clamping plate. Detailed Implementation

[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0016] Reference Figures 1-3As shown, this utility model provides a technical solution: a welding fixture with positioning function, including a positioning long plate 1 and a movable long plate 2. The positioning long plate 1 and the movable long plate 2 are symmetrically distributed from left to right. They are independent components and need to cooperate to form left and right limits on the workpiece. An L-shaped assembly plate 5 is uniformly welded to the side of the positioning long plate 1 away from the movable long plate 2. The welding method makes the L... The shaped assembly plate 5 is firmly connected to the positioning plate 1 and can serve as a connection reference between the fixture and the welding table. Both the positioning plate 1 and the moving plate 2 have multiple horizontally arranged vertex clamping components 3. This horizontal arrangement allows the vertex clamping components 3 to apply horizontal force from the side of the workpiece, improving clamping accuracy. Each vertex clamping component 3 includes an internally threaded sleeve 31 that penetrates the positioning plate 1 and the moving plate 2. After installation, the internally threaded sleeve 31 is fixed to the plate body, providing a stable threaded engagement base for the screw 32. The screw 32 is internally threadedly connected to the internally threaded sleeve 31. This threaded connection allows the screw 32 to adjust its extension length by screwing, adapting to different workpiece side shapes. Discs 33 are fixed to both sides of the outer end of the screw 32; these can be welded together or integrated into a single structure for positioning. Both sides of the bottom of the long plate 1 and the movable long plate 2 are provided with sliding grooves 7 to provide a sliding guide path for the connecting parts 8. The sliding grooves 7 are provided with connecting parts 8. The left and right adjacent connecting parts 8 are connected to the side movable plate 4 to realize the position adjustment of the side movable plate 4. The side movable plate 4 is provided with a guide hole 41 on one side. The connecting parts 8 on one side pass through the guide hole 41. The opening direction of the guide hole 41 is consistent with the sliding direction of the movable long plate 2. The movable long plate 2 slides left and right along the top of the side movable plate 4. The sliding cooperation allows the movable long plate 2 to adjust the distance between itself and the positioning long plate 1 according to the width of the workpiece to adapt to different workpieces. The bottom of the side movable plate 4 away from the positioning long plate 1 is welded with a movable bracket 6 to provide additional support for the side movable plate 4.

[0017] The movable nature of the left and right side moving plates 4 and the movable long plate 2 facilitates the rectangular positioning and fixing of the workpiece to be welded. Then, in conjunction with the function of the vertex clamping component 3, the workpiece is further positioned from the left and right sides. Due to the equidistant distribution of multiple vertex clamping components 3, and with the cooperation of screws 32, irregular workpieces can be accurately positioned from the left and right sides to adapt to the concave and convex curves of the irregular workpiece sides, thereby further improving the positioning reliability of the workpiece to be welded. Furthermore, the L-shaped assembly plate 5 and the movable bracket 6 can be used to assemble and connect the fixture and the welding table, improving its flexible use.

[0018] Reference Figure 2 As shown in this embodiment, there are two sets of vertex clamping components 3, each set having eight vertex clamping components 3, and the left and right sets of vertex clamping components 3 are symmetrically distributed.

[0019] By utilizing the cooperation of multiple vertex clamping components 3, and due to the rotatable mobility of the left and right screws 32, the left and right screws 32 cooperate to adapt to the clamping of different concave and convex curved surfaces on the left and right sides of the workpiece, thereby strengthening the tight contact between the left and right positioning plates 1 and the moving plates 2 for fixing the workpiece to the left and right sides.

[0020] Reference Figure 2 As shown, the end of the screw 32 away from the disc 33 is hemispherical. The internal threaded sleeve 31 is fixedly connected to the positioning plate 1 and the moving plate 2. The length of the internal threaded sleeve 31 is less than the length of the screw 32.

[0021] The hemispherical structure of the screw 32 clamping end facilitates positioning and contact with the side of the workpiece, making it suitable for irregular shapes of the workpiece side. Furthermore, due to the left-right symmetry, the left and right clamping points are symmetrical, resulting in uniform and reasonable force distribution.

[0022] Reference Figure 4 As shown, the connector 8 includes a slider 82 that is slidably installed inside the slide groove 7. A threaded rod 81 is fixed to the bottom end of the slider 82. The bottom end of the threaded rod 81 passes through one side of the adjacent side moving plate 4 or the interior of the adjacent guide hole 41. A U-shaped clamping plate 85 is sleeved on the outside of the threaded rod 81. The U-shaped clamping plate 85 is located at the top of the side moving plate 4. A pressing sleeve 84 is threadedly connected to the outside of the threaded rod 81. The pressing sleeve 84 is located at the bottom end of the side moving plate 4. A limit plate 83 is fixed to the bottom end of the threaded rod 81.

[0023] By rotating the pressure sleeve 84 upwards, the pressure sleeve 84 and the slider 82 form an inward squeezing force, which causes the U-shaped clamp 85, the pressure sleeve 84, etc. to cooperate with each other, so that the side moving plate 4 is tightly fitted and fixed with the positioning long plate 1 and the moving long plate 2 respectively. Then, the size of the rectangular limiting frame formed between the positioning long plate 1, the moving long plate 2 and the two side moving plates 4 can be adjusted to adapt to the limiting effect on workpieces of different sizes and improve its flexibility of use.

[0024] Reference Figure 5 As shown, the cross-section of slider 82 is rectangular, and the cross-section of slide groove 7 is T-shaped. Slider 82 is connected to slide back and forth along slide groove 7.

[0025] The rectangular structure of the slider 82 is used to make the threaded rod 81 automatically rotate left and right when the pressure sleeve 84 is manually turned, so as to ensure the smoothness of the pressure sleeve 84 when it is turned and facilitate one-handed turning operation.

[0026] Reference Figure 5As shown, the U-shaped clamp 85 and the threaded rod 81 are movably connected. The distance between the two sides of the U-shaped clamp 85 is adapted to the width of the positioning plate 1 and the moving plate 2. The inner walls on both sides of the U-shaped clamp 85 abut against the outer walls of the positioning plate 1 and the moving plate 2. The bottom of the U-shaped clamp 85 and the bottom of the positioning plate 1 and the moving plate 2 are both made of frosted material.

[0027] The structure of the U-shaped clamp 85 is used so that when the pressure sleeve 84 is rotated upward, the U-shaped clamp 85 can cooperate with the slider 82 to press and hold the bottom end of the positioning long plate 1 or the moving long plate 2, and ensure that the clamping contact area is large, thereby improving the fixation reliability of the side moving plate 4 after the position is adjusted.

[0028] Reference Figure 5 As shown, the threaded rod 81 and the side moving plate 4 are connected vertically. The outer diameter of the top end of the pressure sleeve 84 is compatible with the width of the positioning long plate 1 and the moving long plate 2. The top end of the pressure sleeve 84 and the bottom end of the side moving plate 4 are both made of frosted material.

[0029] The movable nature of the threaded rod 81 allows it to slide left and right inside the guide hole 41, thereby adjusting the distance between the positioning plate 1 and the moving plate 2. At the same time, the frosted texture of the pressure sleeve 84 helps to fix the position between the moving plate 2 and the side moving plate 4.

[0030] Working principle: When in use, first use bolts and other fasteners to fix the L-shaped assembly plate 5 on the welding table to fix the position of the positioning plate 1. Place the workpiece to be welded within the rectangular frame formed by the positioning plate 1, the movable plate 2 and the two side movable plates 4. Move the left and right side movable plates 4 inward to move closer to each other to fix the front and back of the workpiece and ensure that the two parts to be welded are properly aligned. Then move the movable plate 2 closer to the positioning plate 1. During this process, ensure that the inner sides of the side movable plates 4, the positioning plate 1 and the movable plate 2 are aligned with the maximum length and width of the workpiece. Then, by screwing the pressure sleeve 84 upward, the pressure sleeve 84 and the bottom end of the side moving plate 4 are tightly abutted together, and the top end of the U-shaped clamp 85 and the bottom end of the positioning long plate 1 or the moving long plate 2 are tightly abutted together, so as to fix the connection point between the positioning long plate 1, the moving long plate 2 and the two side moving plates 4, and ensure the stability of the rectangular frame structure. Finally, the screw 32 is screwed inward by the disc 33, so that the screw 32 approaches and abuts against the side of the workpiece. With the cooperation of the left and right vertex clamping components 3, the inner end of the screw 32 is clamped against the fixed point on the side of the workpiece. Since the movement range of the left and right screws 32 can be controlled independently, a multi-point stable clamping effect is achieved for irregularly shaped workpieces.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A welding fixture with positioning function, characterized in that, The device includes a positioning plate and a movable plate, which are symmetrically distributed from left to right. An L-shaped assembly plate is uniformly welded to the side of the positioning plate away from the movable plate. Multiple vertex clamping assemblies are laterally arranged inside both the positioning and movable plates. Each vertex clamping assembly includes an internally threaded sleeve penetrating the interior of the positioning and movable plates. A screw is threaded into the internal thread of the internally threaded sleeve, and discs are fixed to both sides of the outer end of the screw. Slide grooves are formed on both sides of the bottom of both the positioning and movable plates, and connectors are provided inside each slide groove. A side movable plate is connected between adjacent left and right connectors. A guide hole is formed on one side of each side movable plate, and the connectors on one side pass through the guide hole. The movable plate slides left and right along the top of the side movable plate. A movable bracket is welded to the bottom of the side movable plate away from the positioning plate.

2. The welding fixture with positioning function according to claim 1, characterized in that: The vertex clamping components are provided in two sets, with eight vertex clamping components in each set, and the vertex clamping components in the left and right sets are symmetrically distributed.

3. The welding fixture with positioning function according to claim 1, characterized in that: The end of the screw away from the disc is hemispherical. The internal threaded sleeve, the positioning plate, and the moving plate are fixedly connected. The length of the internal threaded sleeve is less than the length of the screw.

4. The welding fixture with positioning function according to claim 1, characterized in that: The connector includes a slider slidably installed inside the slide groove. A threaded rod is fixed to the bottom end of the slider. The bottom end of the threaded rod passes through one side of an adjacent side moving plate or the interior of an adjacent guide hole. A U-shaped clamp is sleeved on the outside of the threaded rod. The U-shaped clamp is located at the top of the side moving plate. A pressure sleeve is threaded to the outside of the threaded rod. The pressure sleeve is located at the bottom end of the side moving plate. A limit plate is fixed to the bottom end of the threaded rod.

5. The welding fixture with positioning function according to claim 4, characterized in that: The slider has a rectangular cross-section, the groove has a T-shaped cross-section, and the slider slides back and forth along the groove.

6. The welding fixture with positioning function according to claim 4, characterized in that: The U-shaped clamp and the threaded rod are movably connected. The distance between the two sides of the U-shaped clamp is adapted to the width of the positioning plate and the moving plate. The inner walls of the two sides of the U-shaped clamp abut against the outer walls of the positioning plate and the moving plate. The bottom of the U-shaped clamp and the bottom of the positioning plate and the moving plate are both made of frosted material.

7. The welding fixture with positioning function according to claim 4, characterized in that: The threaded rod and the side moving plate are connected vertically. The outer diameter of the top of the pressure sleeve is adapted to the width of the positioning plate and the moving plate. The top of the pressure sleeve and the bottom of the side moving plate are both made of frosted material.

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