Arc welding positioning unit of machined part and machined part

Abstract

The arc welding positioning unit comprises a positioning frame, a top cover is arranged at the top end of the positioning frame in an inserted mode, a plurality of outer protruding plate grooves are transversely formed in the front face of the positioning frame, inserting grooves are transversely formed in the inner sides of the outer protruding plate grooves, and inner strips are transversely arranged on the inner sides of the inserting grooves in the outer protruding plate grooves. A shaft rod is rotationally arranged at one end of the inner strip, a rotating frame is arranged at the front end of the shaft rod, a rectangular structure channel is transversely formed in the inner side of the rotating frame, a shielding plate is rotationally arranged on the rectangular channel in the inner side of the rotating frame, and a positioning piece is fixedly arranged at one end of an outer protruding plate groove. The rotating frame helps the shielding plates to turn to be parallel to the machining part body, so that the shielding plates completely abut against the top end of the machining part body, the machining part body can be clamped and positioned by the shielding plates at the moment, and the shielding plates of different levels can be suitable for machining part bodies of different heights.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically relating to an arc welding positioning unit for a machined part and the machined part itself. Background Technology

[0002] Machined parts are components manufactured through mechanical processing. They are made from various metal or non-metal materials through cutting, grinding, drilling, milling, etc., to form parts with specific shapes and sizes. They are used to assemble mechanical equipment or components. Common types include shafts, discs, and other parts.

[0003] Arc welding positioning units are positioning devices used in the welding process. Their function is to ensure the precise position of the welded workpiece, improve welding quality and consistency, and include components such as clamps, positioning pins, and support blocks to fix the workpiece and prevent displacement.

[0004] The components may include the clamp body, the receiving shaft, etc. The components work together, and the elastic abutment structure and adjustable adapter structure can adapt to different machined parts and protect them from damage during clamping.

[0005] Arc welding positioning units offer significant advantages in practical applications, improving welding accuracy and stability, reducing deformation, and increasing production efficiency. For example, the subframe arc welding positioning composite mechanism from Zhongyuan Automotive Parts Co., Ltd. can achieve high-precision positioning from multiple angles, enhancing welding quality. However, limitations also exist. Traditional positioning methods struggle to meet the needs of workpieces with special shapes or without positioning holes, and their design and manufacturing costs are relatively high. Therefore, the choice should be based on specific requirements and economic considerations.

[0006] The latest developments include patent applications for subframe arc welding positioning composite mechanisms and design patents for tube sheet argon arc welding machines with static positioning axes, which are moving towards higher precision and efficiency.

[0007] The existing arc welding positioning units for machined parts have the following problems during use:

[0008] Many machines can accommodate machined parts of different heights, but they also contain cylindrical objects such as screws to fix the machined parts, which can damage the surface of the parts. Utility Model Content

[0009] (1) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an arc welding positioning unit for machined parts and the machined parts themselves. This arc welding positioning unit aims to solve the problem that, in existing technologies, numerous screws cause damage to the surface of machined parts during fixing. However, this traditional fixing method is not stable enough in certain situations, especially when the screws are under high pressure, causing hidden damage to the surface of the machined parts.

[0011] (2) Technical solution

[0012] To solve the above-mentioned technical problems, this utility model provides an arc welding positioning unit for machined parts, including a positioning frame, a top cover inserted into the top of the positioning frame, an outwardly protruding plate groove arranged horizontally on the front of the positioning frame, a slot opened horizontally on the inner side of the outwardly protruding plate groove, an inner strip arranged horizontally on the inner side of the slot on the inner side of the outwardly protruding plate groove, a shaft rotatably mounted at one end of the inner strip, a rotating frame mounted at the front end of the shaft, a rectangular structural channel opened horizontally on the inner side of the rotating frame, a cover plate rotatably mounted on the rectangular channel on the inner side of the rotating frame, and a positioning piece fixedly mounted at one end of the outwardly protruding plate groove.

[0013] Preferably, the shaft is composed of a rotating cylinder and a connecting plate, and the shaft drives the rotating frame to form a rotating structure.

[0014] Furthermore, the rotating frame is composed of a rectangular frame, connecting pieces, and a rotating shaft. The rotating shaft is horizontally arranged inside the rectangular channel opened on the inner side of the rotating frame, and a cover plate is clamped on the outer side of the rotating shaft. The cover plate and the rotating shaft form a flip joint.

[0015] Furthermore, the inner strip and the outer convex plate groove form a pulling action.

[0016] A machined part includes a machined part body, auxiliary structures, and a base. The base is provided at the bottom end of the positioning frame, and the machined part body is placed at the middle of the top of the base. The auxiliary structures are provided on both sides of the machined part body. The auxiliary structures include a stop plate, a spring, a slide groove, a slide block, and a push block. The front and rear ends of the top of the base are provided with slide grooves, the top of the slide grooves is provided with slide blocks, and the top of the slide blocks is provided with push blocks. The front end of the push block is provided with a spring, and one end of the spring is provided with a stop plate. The push block is composed of a cylindrical connecting rod and a rectangular block. The spring reduces the pressure between the cylindrical connecting rod inside the push block and the machined part body.

[0017] Furthermore, the slide groove and the slide block form a sliding motion.

[0018] Furthermore, the spring and the abutment form a fixed connection.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. In this utility model, when the machined part body is placed on the outside of the positioning frame, the inner strip on the inner side of the outer protruding plate groove is pulled. The inner strip drives the rotating frame, the cover plate and the shaft to cover the upper end of the machined part body. At the same time, the shaft drives the rotating frame and the cover plate to rotate in the same direction as the placement direction of the machined part body. The rotating frame then helps the cover plate to flip and be parallel to the machined part body, so that the cover plate completely abuts the top of the machined part body. At this time, the machined part body will be clamped and positioned by the cover plate. Different levels of cover plates can be used for machined part bodies of different heights.

[0022] 2. In this utility model, the push block at the top of the movable slide block and the slide block at the top of the slide groove drive the spring and the abutment to approach the outer side of the machined part body. When the machined part body is welded at the top of the base, the machined part body will not move due to the shaking of the positioning frame and the base. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first main structure of a specific embodiment of the device of this utility model;

[0024] Figure 2 This is a schematic diagram of the second main structure of one specific embodiment of the device of this utility model;

[0025] Figure 3 This is an exploded view of the first embodiment of the device according to a specific implementation of the present invention;

[0026] Figure 4 This is a schematic diagram of a second embodiment of the device according to a specific implementation of the present invention;

[0027] Figure 5 This is a schematic diagram of a third embodiment of the device according to the present invention.

[0028] Figure 6 This is a cross-sectional structural diagram of one specific embodiment of the device of this utility model.

[0029] The markings in the attached diagram are as follows: 1. Positioning frame; 2. Positioning piece; 3. Cover plate; 4. Auxiliary structure; 41. Support piece; 42. Spring; 43. Slide groove; 44. Slide seat; 45. Push block; 5. Base; 6. Machining part body; 7. Rotating frame; 8. Shaft; 9. Outer convex plate groove; 10. Top cover; 11. Inner strip. Detailed Implementation

[0030] This specific embodiment is an arc welding positioning unit for a machined part and the machined part itself, the structural schematic diagram of which is shown below. Figure 1-6As shown, an arc welding positioning unit for a machined part and the machined part are disclosed. The arc welding positioning unit for the machined part includes: a positioning frame 1, a top cover 10 inserted into the top of the positioning frame 1, a plurality of externally protruding plate grooves 9 arranged laterally on the front side of the positioning frame 1, slots opened laterally on the inner side of the externally protruding plate grooves 9, an inner strip 11 arranged laterally on the inner side of the slots on the inner side of the externally protruding plate grooves 9, a shaft 8 rotatably arranged at one end of the inner strip 11, a rotating frame 7 arranged at the front end of the shaft 8, a rectangular structural channel opened laterally on the inner side of the rotating frame 7, a cover plate 3 rotatably arranged in the rectangular channel on the inner side of the rotating frame 7, and a positioning piece 2 fixedly arranged at one end of the externally protruding plate grooves 9.

[0031] The machined part includes a machined part body 6, an auxiliary structure 4, and a base 5. The bottom end of the positioning frame 1 is provided with the base 5. The machined part body 6 is placed in the middle of the top end of the base 5. The auxiliary structure 4 is provided on both sides of the machined part body 6. The auxiliary structure 4 includes a stop plate 41, a spring 42, a slide groove 43, a slide seat 44, and a push block 45. The front and rear ends of the top end of the base 5 are provided with slide grooves 43. The top end of the slide grooves 43 is provided with a slide seat 44. The top end of the slide seat 44 is provided with a push block 45. The front end of the push block 45 is provided with a spring 42. One end of the spring 42 is provided with a stop plate 41. The push block 45 is composed of a cylindrical connecting rod and a rectangular block. The spring 42 reduces the pressure between the cylindrical connecting rod inside the push block 45 and the machined part body 6.

[0032] The positioning frame 1 has multiple layers of externally protruding grooves 9 on its outer surface. The inner strips 11, which are laterally movable on the inner sides of different levels of the externally protruding grooves 9, can drive the cover plate 3, rotating frame 7, shaft 8, and other components to move laterally. The shaft 8 and rotating frame 7 can also drive the cover plate 3 to rotate, and the rotating frame 7 can help the cover plate 3 to flip, thereby adjusting the position and height of the cover plate 3. When machined parts 6 of different heights are placed on the surface of the positioning frame 1, the inner strips 11, shaft 8, rotating frame 7, and cover plate 3 on one side of the different levels of the externally protruding grooves 9 can be adjusted to accommodate machined parts 6 of different heights. Users can remove excess inner strips 11, rotating frame 7, shaft 8, and cover plate 3, leaving only the cover plate 3 and rotating frame 7 that adapt to the currently positioned machined part 6, thus limiting the positioning height of the machined part 6. The user can also rotate the shaft 8 and the rotating frame 7 to rotate the excess rotating frame 7, shaft 8, and cover plate 3 to the outside of the positioning frame 1. Since the horizontally opened sliding groove 43 at the top of the base 5 can help the slide 44 move, the slide 44 drives the push block 45 to move on the surface of the base 5. The push block 45 can drive the abutment 41 and spring 42 to move laterally on the surface of the base 5. When the abutment 41 is attached to the outside of the machined part body 6, the shaking of the machined part body 6 caused by the arc welding operation will be relieved by the spring 42. At the same time, the user can adjust the spacing of the abutment 41 on the base 5 to accommodate machined part bodies 6 of different sizes. The user can reduce the overall internal structure size of the auxiliary structure 4 so that there are multiple auxiliary structures 4 on the surface of the base 5 to clamp multiple machined part bodies 6 and realize the placement of multiple smaller machined part bodies 6.

[0033] In addition, regarding the effects: First, in adapting to machined parts of different heights, the multi-layered external convex plate groove 9 of the positioning frame 1 has an ingenious structure. The inner strip 11 on its inner side can drive the cover plate 3, the rotating frame 7, and the shaft 8 to move laterally. The shaft 8 and the rotating frame 7 can also drive the cover plate 3 to rotate and flip to adjust its position and height. For machined parts 6 of different heights, adjusting the relevant components on one side of the external convex plate groove 9 can adapt to the height requirements, and excess components can be removed to limit the positioning height to ensure accuracy. Second, in adapting to machined parts of different sizes and multiple parts, the auxiliary structure 4 of the base 5 is very effective. The slide 43 allows the slide 44 to drive the push block 45 to move. The push block 45 drives the abutment 41 and the spring 42 to move laterally. When the abutment 41 is in contact with the machined part 6, the spring 42 relieves the arc welding wobbling. The spacing of the abutment 41 can be adjusted to adapt to the size, and the overall size of the auxiliary structure 4 can be reduced. Multiple auxiliary structures 4 can be set on the base 5 to place multiple small-sized machined parts 6, improving practicality. In terms of performance and efficiency; finally, in terms of protecting the machined parts, when the abutment 41 is attached to the machined part body 6, the spring 42 can reduce the pressure between the cylindrical connecting rod inside the push block 45 and the machined part body 6, avoiding damage to the machined part body 6 due to excessive pressure during positioning and arc welding operations. In terms of novel technology: First, the adjustable height positioning structure, the height positioning structure composed of the outer convex plate groove 9, inner strip 11, shaft 8, rotating frame 7 and cover plate 3 of the positioning frame 1 is innovative. The cover plate 3 can be adjusted through various movement methods to adapt to the machined part body 6 of different heights. It can also add or remove parts to limit the positioning height, which is flexible and precise. Second, the multi-functional auxiliary structure, the auxiliary structure 4 on the base 5 is novel. It combines the abutment 41, spring 42, slide groove 43, slide seat 44 and push block 45. The slide seat 44 moves on the slide groove 43 to drive other parts to adapt to the machined part body 6 of different sizes. It can also adjust its own structural size to realize the placement of multiple parts, integrating multiple functions into one.

[0034] Working principle: When using the device of this technical solution, after the base 5 is inserted and combined with the positioning frame 1 and the top cover 10, it is placed in a suitable position. Then, the push block 45 is pulled to both sides. The push block 45 drives the slide 44 to move at the top of the slide groove 43. When the push block 45 moves, it drives the spring 42 and the abutment 41 to move to both sides of the base 5. At this time, the operator places the machined part body 6 at the top of the base 5. Then, the push block 45 is moved again. The push block 45 drives the spring 42 and the abutment 41 to approach the sides of the machined part body 6. At this time, the shaft 8 is rotated. The shaft 8 causes the cover plate 3 and the rotating frame 7 to rotate to a plane that coincides with the machined part body 6. Then, the cover plate 3 is flipped. The rotating frame 7 helps the cover plate 3 to flip to a position parallel to the machined part body 6. The inner strip 11 is pulled. The inner strip 11 moves inside the outer convex plate groove 9. When the cover plate 3 abuts against the top of the machined part body 6, the movement of the inner strip 11 is stopped. At this time, the machined part body 6 is stuck by the cover plate 3.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An arc welding positioning unit for machined parts, comprising a positioning frame (1), characterized in that, The top end of the positioning frame (1) is inserted with a top cover (10), the front of the positioning frame (1) is transversely provided with an outer convex plate slot (9), the inner side of the outer convex plate slot (9) is transversely provided with an insertion slot, the inner side of the insertion slot of the outer convex plate slot (9) is transversely provided with an inner strip (11), one end of the inner strip (11) is rotatably provided with a shaft rod (8), the front end of the shaft rod (8) is provided with a rotating frame (7), the inner side of the rotating frame (7) is transversely provided with a rectangular channel, the inner side of the rectangular channel of the rotating frame (7) is rotatably provided with a shutter (3), and one end of the outer convex plate slot (9) is fixedly provided with a positioning sheet (2).

2. A unit for positioning a piece to be welded in arc welding according to claim 1, characterized in that The shaft rod (8) is composed of a rotating cylinder and a connecting sheet, and the shaft rod (8) drives the rotating frame (7) to form a rotating structure.

3. The arc welding positioning unit for machine parts according to claim 1, wherein The rotating frame (7) is composed of a rectangular frame, a connecting sheet and a rotating shaft, the inner side of the rectangular channel of the rotating frame (7) is transversely provided with a rotating shaft, the outer side of the rotating shaft is clamped with the shutter (3), and the shutter (3) and the rotating shaft constitute a flip connection.

4. The arc welding positioning unit for machine parts according to claim 1, wherein The inner strip (11) and the outer convex plate slot (9) constitute a pulling activity.

5. A machine tool, an arc welding positioning unit of any one of claims 1 to 4 being used for positioning of the machine tool, characterized by: The positioning frame (1) is provided with a base (5) at the bottom end, the middle of the top end of the base (5) is placed with a machine part body (6), and the two sides of the machine part body (6) are provided with auxiliary structures (4). The auxiliary structure (4) comprises a resisting sheet (41), a spring (42), a sliding groove (43), a sliding seat (44) and a push block (45), the front and rear ends of the top end of the base (5) are provided with sliding grooves (43), the top end of the sliding groove (43) is provided with a sliding seat (44), the top end of the sliding seat (44) is provided with a push block (45), the front end of the push block (45) is provided with a spring (42), one end of the spring (42) is provided with a resisting sheet (41), the push block (45) is composed of a cylindrical connecting rod and a rectangular block, and the spring (42) reduces the pressure caused by the cylindrical connecting rod inside the push block (45) and the machine part body (6).

6. A machine element according to claim 5, characterised in that The sliding groove (43) and the sliding seat (44) constitute a sliding activity.

7. A machine element according to claim 6, characterised in that The spring (42) and the resisting sheet (41) constitute a fixed connection.

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