Welding mistake-proofing tool
By designing welding error-proof fixtures, and utilizing hydraulically driven positioning and error-proof plates to block holes, the problem of manual welding errors was solved, achieving an efficient and accurate welding process and reducing rework and labor waste.
Patent Information
- Application Number
- CN202520147740.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-22
AI Technical Summary
In the mass production of automotive parts, manual identification and welding of bolt or nut hole positions are prone to errors, leading to substandard product quality, requiring rework, and resulting in wasted labor.
Design a welding error-proof fixture, including a base, a U-shaped frame, a fixing component, an error-proof component, and a clamping mechanism. The moving plate is positioned by a hydraulic cylinder, the error-proof plate blocks holes that do not need to be welded, exposes holes that need to be welded, and the welding plate is fixed by the clamping mechanism to prevent slippage.
It effectively prevents welding misalignment, improves welding accuracy, reduces manual fixing steps, adapts to welding plates of different sizes, and improves production efficiency.
Smart Images

Figure CN223801842U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automobile parts processing technical field, concretely is a kind of welding mistake-proofing tool. BACKGROUND
[0002] In automobile parts, some stamping parts will have several equal size, shape holes, and these holes can be distributed in different levels of parts, and in the process of mass production of parts, the position of the hole needing to be welded with bolt or nut is mostly identified by manual, and the bolt or nut is welded on the corresponding hole.
[0003] However, human operation inevitably occurs failure, and bolt or nut is easily welded in wrong position, therefore, to ensure product quality, the finished part needs to be ensured welding qualified by full inspection, and for the wrong welded part, polishing and rework are needed, causing unnecessary artificial waste. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of welding mistake-proofing tool to solve the deficiency of prior art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of welding mistake-proofing tool, including base, the top surface of base is fixedly installed U-shaped frame, the top surface of base is provided with fixed component, fixed component is located in the inside of U-shaped frame, the top of fixed component is equipped with mistake-proofing piece, mistake-proofing piece corresponds with fixed component, the front and back of mistake-proofing piece are provided with clamping mechanism, the top surface of the inside of U-shaped frame is fixedly installed hydraulic cylinder, the lower end of hydraulic cylinder is connected with mistake-proofing piece by connecting component.
[0006] The welding mistake-proofing tool described above, the fixed component includes electric push rod, moving plate and guide rod, two times are fixedly installed electric push rod below the inside of U-shaped frame, the telescopic end of electric push rod is fixedly installed moving plate, two moving plates are matched, the two sides of the top surface of base are provided with sliding slot, guide rod is slidably arranged in sliding slot, the upper end of guide rod is fixedly connected with corresponding moving plate.
[0007] The welding mistake-proofing tool described above, the mistake-proofing piece is mistake-proofing plate, the top surface of mistake-proofing plate is provided with several grooves, and welding hole is arranged in the groove.
[0008] The welding mistake-proofing tool described above, the clamping mechanism includes L-shaped plate, spring and clamping plate, L-shaped plate is fixedly installed on the front and back of mistake-proofing plate, the inner wall of L-shaped plate is fixedly connected with clamping plate by telescopic rod, two clamping plates are matched, the telescopic end of telescopic rod is sleeved with spring, one end of spring is fixedly connected with clamping plate, and the other end of spring is connected with the fixed end of telescopic rod.
[0009] The welding mistake-preventing tool as described above, the connecting assembly comprises a U-shaped rod, a connecting sleeve and a bolt, the U-shaped rod is fixedly connected with the telescopic end of the hydraulic cylinder, the connecting sleeves are fixedly installed on the two sides of the top surface of the mistake-preventing plate, the two ends of the U-shaped rod are inserted into the corresponding connecting sleeves, the two ends of the U-shaped rod are provided with insertion holes, one side of the connecting sleeve is provided with a screw hole, the bolt is threadedly connected with the screw hole, and one end of the bolt is inserted into the corresponding insertion hole.
[0010] Compared with the prior art, the welding mistake-preventing tool has the advantages that the clamping mechanism is arranged to fix the welding plate and the mistake-preventing plate, prevent the welding plate and the mistake-preventing plate from sliding during welding, affect the welding of the welding plate, and increase the convenience of welding the welding plate, thereby saving the labor of fixing the welding plate and the mistake-preventing plate.
[0011] The mistake-preventing plate is arranged to prevent welding errors, and the hole positions that do not need to be welded are shielded and the welding holes that need to be welded are exposed under the cooperation of the groove and the mistake-preventing plate, thereby effectively preventing welding misplacement.
[0012] The fixing assembly can fix the welding plate to prevent displacement of the welding plate during work and avoid affecting normal work.
[0013] The connecting assembly can replace the mistake-preventing piece, thereby facilitating mistake prevention for different welding plates. DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0016] Figure 2 It is Figure 1 the enlarged view of the A view of
[0017] Figure 3 It is Figure 1 the enlarged view of the B view of
[0018] Figure 4 It is Figure 1 the enlarged view of the I of
[0019] Reference numerals: 1-base, 2-U-shaped frame, 3-fixed component, 31-electric actuator, 32-moving plate, 33-guide rod, 34-slide groove, 4-anti-misalignment component, 41-anti-misalignment plate, 42-groove, 43-welding hole, 5-clamping mechanism, 51-L-shaped plate, 52-spring, 53-clamping plate, 54-telescopic rod, 6-hydraulic cylinder, 7-connecting component, 71-U-shaped rod, 72-connecting sleeve, 73-bolt, 74-insertion hole, 75-screw hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1 to 4 As shown in the figure, this embodiment discloses a welding error-proof fixture, including a base 1, a U-shaped frame 2 fixedly installed on the top surface of the base 1, and a fixing component 3 provided on the top surface of the base 1. The fixing component 3 includes an electric push rod 31, a movable plate 32 and a guide rod 33. The electric push rod 31 is fixedly installed on both sides of the lower part of the U-shaped frame 2. The movable plate 32 is fixedly installed on the telescopic end of the electric push rod 31. The two movable plates 32 cooperate with each other. Slide grooves 34 are opened on both sides of the top surface of the base 1. The guide rod 33 is slidably disposed in the slide groove 34. The upper end of the guide rod 33 is fixedly connected to the corresponding movable plate 32. When the electric push rod 31 is working, the telescopic end of the electric push rod 31 pushes the movable plate 32 to move, so that the two movable plates 32 position the welding plate and can be used for welding plates of different sizes. By moving along the slide groove 34, the guide rod 33 can support and guide the movable plate 32.
[0022] The fixing component 3 is located inside the U-shaped frame 2. Above the fixing component 3, there is an anti-misalignment component 4, which corresponds to the fixing component 3. The anti-misalignment plate 41 has several grooves 42 on its top surface, and welding holes 43 are opened in the grooves 42. The anti-misalignment plate 41 can prevent welding errors. With the cooperation of the grooves 42 and the anti-misalignment plate 41, the holes that do not need to be welded are blocked, and the holes that need to be welded are exposed through the welding holes 43, which effectively prevents welding misalignment.
[0023] The front and rear sides of the error prevention piece 4 are provided with clamping mechanisms 5, the clamping mechanism 5 comprises an L-shaped plate 51, a spring 52 and a clamping plate 53, the front and rear sides of the error prevention plate 41 are fixedly provided with the L-shaped plate 51, the inner wall of the L-shaped plate 51 is fixedly connected with the clamping plate 53 through an extension rod 54, the two clamping plates 53 are matched, the extension end of the extension rod 54 is sleeved with the spring 52, one end of the spring 52 is fixedly connected with the clamping plate 53, the other end of the spring 52 is connected with the fixed end of the extension rod 54, the clamping plate 53 is pushed to clamp the welding plate under the action of the spring 52, which plays a fixing role on the welding plate and the error prevention plate 41, prevents the welding plate from sliding with the error prevention plate 41 during the welding process, affects the welding of the welding plate, increases the convenience of the welding of the welding plate, and saves the manual fixing of the welding plate and the error prevention plate 41.
[0024] The top surface of the U-shaped frame 2 is fixedly provided with a hydraulic cylinder 6, the lower end of the hydraulic cylinder 6 is connected with the error prevention piece 4 through a connecting assembly 7, the connecting assembly 7 comprises a U-shaped rod 71, a connecting sleeve 72 and a bolt 73, the extension end of the hydraulic cylinder 6 is fixedly connected with the U-shaped rod 71, the two sides of the top surface of the error prevention plate 41 are fixedly provided with the connecting sleeve 72, the two ends of the U-shaped rod 71 are inserted into the corresponding connecting sleeve 72, the two ends of the U-shaped rod 71 are provided with insertion holes 74, one side of the connecting sleeve 72 is provided with a screw hole 75, the bolt 73 is screwed into the screw hole 75, one end of the bolt 73 is inserted into the corresponding insertion hole 74, the U-shaped rod 71 is connected with the connecting sleeve 72 through the bolt 73, which can facilitate the installation and dismounting of the U-shaped rod 71 and the connecting sleeve 72, so as to facilitate the replacement of the error prevention plate 41, and thus the welding plate of different sizes can be applied.
[0025] Working principle:
[0026] The electric push rod 31 works, the extension end of the electric push rod 31 pushes the moving plate 32 to move, so that the two moving plates 32 position the welding plate, and the welding plate of different sizes can be applied, the moving plate 32 is supported and guided through the movement of the guide rod 33 along the sliding groove 34, the error prevention plate 41 is provided to prevent welding errors, the hole position that does not need to be welded is shielded under the cooperation of the groove 42 and the error prevention plate 41, the hole position that needs to be welded is exposed through the welding hole 43, effectively preventing the phenomenon of welding misplacement, the clamping plate 53 is pushed to clamp the welding plate under the action of the spring 52, which plays a fixing role on the welding plate and the error prevention plate 41, prevents the welding plate from sliding with the error prevention plate 41 during the welding process, affects the welding of the welding plate, increases the convenience of the welding of the welding plate, and saves the manual fixing of the welding plate and the error prevention plate 41; the U-shaped rod 71 is connected with the connecting sleeve 72 through the bolt 73, which can facilitate the installation and dismounting of the U-shaped rod 71 and the connecting sleeve 72, so as to facilitate the replacement of the error prevention plate 41, and thus the welding plate of different sizes can be applied.
[0027] It should be noted that the above embodiments are only specific, clear descriptions of the technical solutions and technical features of the present application. For those skilled in the art, the solutions or features that belong to the prior art or common knowledge are not described in detail in the above embodiments.
[0028] In addition, the technical solutions of the present application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A welding mistake proofing tool, characterized by: The base (1) is provided with a U-shaped frame (2) fixedly installed on the top surface of the base (1), a fixing assembly (3) arranged on the top surface of the base (1) and located in the U-shaped frame (2), an error-proof part (4) arranged above the fixing assembly (3) and corresponding to the fixing assembly (3), clamping mechanisms (5) arranged on the front and back sides of the error-proof part (4), and a hydraulic cylinder (6) fixedly installed on the top surface in the U-shaped frame (2) and connected to the error-proof part (4) through a connecting assembly (7).
2. The welding mistake proofing tool of claim 1, wherein: The fixing assembly (3) comprises electric push rods (31), moving plates (32) and guide rods (33), the electric push rods (31) are fixedly installed on the bottom surface in the U-shaped frame (2), the moving plates (32) are fixedly installed on the telescopic ends of the electric push rods (31), the two moving plates (32) are matched, the two sides of the top surface of the base (1) are provided with sliding grooves (34), and the guide rods (33) are slidingly arranged in the sliding grooves (34) and fixedly connected to the corresponding moving plates (32) at the upper ends.
3. The welding mistake proofing tool of claim 1, wherein: The error-proof part (4) is an error-proof plate (41), the top surface of the error-proof plate (41) is provided with a plurality of grooves (42), and the grooves (42) are provided with welding holes (43).
4. The weld mistake proofing tool of claim 1, wherein: The clamping mechanism (5) comprises L-shaped plates (51), springs (52) and clamping plates (53), the L-shaped plates (51) are fixedly installed on the front and back sides of the error-proof plate (41), the clamping plates (53) are fixedly connected to the inner walls of the L-shaped plates (51) through telescopic rods (54), the two clamping plates (53) are matched, the telescopic rods (54) are sleeved with the springs (52) at the telescopic ends, one end of the spring (52) is fixedly connected to the clamping plate (53), and the other end of the spring (52) is connected to the fixed end of the telescopic rod (54).
5. The weld mistake proofing tool of claim 1, wherein: The connecting assembly (7) comprises U-shaped rods (71), connecting sleeves (72) and bolts (73), the U-shaped rods (71) are fixedly connected to the telescopic ends of the hydraulic cylinder (6), the connecting sleeves (72) are fixedly installed on the two sides of the top surface of the error-proof plate (41), the two ends of the U-shaped rod (71) are inserted into the corresponding connecting sleeves (72), the two ends of the U-shaped rod (71) are provided with insertion holes (74), one side of the connecting sleeve (72) is provided with a threaded hole (75), the bolt (73) is threadedly connected to the threaded hole (75), and one end of the bolt (73) is inserted into the corresponding insertion hole (74).