Welding tool for water channel cover plate of aluminum alloy water-cooling machine shell

Abstract

The utility model discloses a welding tool for a water channel cover plate of an aluminum alloy water-cooling machine shell, relates to the technical field of welding devices, and aims to solve the technical problem that the clamping and operation quality is affected due to looseness easily caused by insufficient pressure of an air cylinder in a current direct ejection pressure applying mode. The inner column is installed in the middle of the upper end face of the bottom plate, the outer side of the inner column is sleeved with the machine shell body, the supports are distributed on the outer side of the inner column on the bottom plate in an annular array mode, the air cylinder is arranged at the top of each support, the clamp mechanism is installed at the front end of each air cylinder, and each clamp mechanism is composed of a clamp shell, a movable sleeve and a fixing piece. The fixed piece is fixed to the middle of the front end of the air cylinder, the clamp shell and the movable sleeve are slidably connected to the outer side of the fixed piece in a sleeving mode, and the air cylinder is connected with the movable sleeve. The clamping device has the advantages that a clamping positioning mode is adopted, clamping looseness caused by insufficient power of a single air cylinder is prevented, and the operation quality is ensured.

Description

Welding fixture for water channel cover plate of aluminum alloy water-cooled machine casing Technical Field

[0001] This utility model relates to the field of welding equipment technology, and more specifically, to a welding fixture for an aluminum alloy water-cooled machine casing water channel cover. Background Technology

[0002] The coolant channel cover is a key component in water-cooled engine casings used to seal off the coolant circulation channels. It is connected to the main casing body via friction stir welding to form a closed cooling water channel system to meet the heat dissipation requirements of the casing. Friction stir welding is a solid-state welding method in which a high-speed rotating stirring head is inserted into the materials to be welded, generating frictional heat and bringing the materials to a plastic state. The stirring head then moves along the welding interface, stirring and mixing the plastic materials to form a strong weld joint.

[0003] Currently, a separate fixture has been designed for welding waterway covers, providing multi-point support to ensure accurate positioning during welding. A pneumatic or hydraulically driven clamping mechanism enables rapid clamping and release, reducing manual operation time and improving production efficiency. However, existing clamping fixtures use a direct-acting cylinder pressure method, which is prone to loosening due to insufficient air pressure, affecting work quality. Therefore, we propose a welding fixture for aluminum alloy water-cooled machine housing waterway covers. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a welding fixture for the water channel cover plate of aluminum alloy water-cooled machine casing, so as to solve the technical problem that the current direct pressure application method is prone to loosening due to insufficient cylinder pressure, which affects the clamping and operation quality.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a welding fixture for a water channel cover plate of an aluminum alloy water-cooled machine casing, including a bracket, an inner column, and a clamping mechanism. The inner column is installed at the middle of the upper end face of the base plate, and the outer side of the inner column is sleeved with the casing body. The bracket is arranged in a ring array on the outer side of the inner column on the base plate. A cylinder is provided at the top of the bracket. The clamping mechanism is installed at the front end of the cylinder. The clamping mechanism consists of a clamping shell, a movable sleeve, and a fixing plate. The fixing plate is fixed at the middle of the front end of the cylinder. The clamping shell and the movable sleeve are slidably sleeved on the outer side of the fixing plate, and the cylinder is connected to the movable sleeve.

[0006] In use, the main body of the machine casing is fitted onto the outer side of the inner column. Then, the cylinder is activated to move the movable sleeve outward. Simultaneously, the movable sleeve moves the clamping shell outward. The inward-curving opening of the clamping shell presses against the pressure claws, causing them to deflect and close, clamping the outer wall of the main body of the machine casing. Through this compression-type clamping method, a single clamping mechanism is fixed by double pressure claws. Through the above structural design, this device achieves fixation through multiple clamping methods. When a single cylinder experiences instability due to insufficient air pressure, adjacent mechanisms, due to the double-claw clamping, can also achieve a good stabilizing effect, preventing damage to pipelines or air supply lines. When cylinder malfunctions, the clamping effect is affected, ensuring machining quality. During the outward displacement of the fixture housing, the insert plate is moved synchronously via the upright. The insert plate is inserted into the socket, and the guide plate is lifted by the inclined surface. The upper end of the guide plate presses against the bottom of the machine housing body. The clamping structure with the pressure claw ensures the stability of the bottom of the machine housing body. Through the above structure, it avoids the large gap caused by the inability to perfectly fit the inner column due to different inner diameters of the machine housing body. The pressure claw clamps and fixes the upper outer side of the machine housing body, and the bottom of the machine housing body cannot be effectively limited, which causes eccentric shaking and further ensures stability.

[0007] Preferably, the upper outer side of the inner column is provided with a ring array of limiting plates, and the lower outer side of the inner column is provided with a ring array of bottom supports, with the limiting plates corresponding to the bottom supports.

[0008] Preferably, the outer side of the base support is provided with a groove, and a guide plate is slidably installed in the groove. The bottom of the guide plate is provided with an insertion port, and a limit groove is provided in the middle of the guide plate.

[0009] Preferably, the groove of the bottom support is provided with a limiting block, and the limiting block is connected with the limiting groove of the guide plate. The outer end of the upright is provided with an inclined surface, and the inclined surface corresponds to the inclined opening of the insertion port.

[0010] Preferably, the clamp housing has inwardly inclined openings on both sides, the rear end of the clamp housing is connected to the front end of the movable sleeve, and the front ends of the fixed plate are rotatably mounted with pressure claws via rotating shafts.

[0011] Preferably, the pressure claw has an open design, and the rear inclined surface of the pressure claw is adapted to the inner inclined opening of the clamping housing.

[0012] Preferably, the rear opening of the clamp housing is adapted to the rotatable connection between the pressure claw and the fixing plate, the pressure claw clamps the outer wall of the housing body after closing, and the upper end of the guide plate corresponds to the bottom of the housing body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model designs a clamping mechanism that fits the machine housing body onto the outer side of the inner column. Then, the cylinder is activated to move the movable sleeve outward, which in turn moves the clamping housing outward. The inward-curving opening of the clamping housing squeezes the pressure claws, causing them to deflect and close to clamp the outer wall of the machine housing body. Through this squeezing clamping method, a single clamping mechanism is fixed by double pressure claws. Through the above structural design, this device can achieve fixation through multiple clamping methods. When a single cylinder experiences unstable clamping due to insufficient air pressure, the adjacent mechanism can still achieve good stability due to the double-claw clamping, avoiding the impact of problems with the pipeline or cylinder on the clamping effect and ensuring the quality of processing.

[0015] 2. This utility model also incorporates a bottom support design. As the clamp housing moves outward, the uprights synchronously drive the insert plate to move. The insert plate is inserted into the socket, and the inclined surface drives the guide plate to rise. The upper end of the guide plate presses against the bottom of the housing body. Combined with the clamping structure of the pressure claws, this ensures the stability of the bottom of the housing body. Through the above structure, it avoids the large gap caused by the inability to perfectly fit the inner column due to different inner diameters of the housing body. The pressure claws clamp and fix the upper outer side of the housing body, preventing eccentric swaying caused by the inability to effectively limit the bottom of the housing body, thus further ensuring stability. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 is a schematic diagram of the inner column structure of this utility model;

[0018] Figure 3 is a schematic diagram of the unfolded structure of this utility model;

[0019] Figure 4 is a schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 5 is a schematic diagram of the clamp shell structure of this utility model.

[0021] The following are the labels in the diagram: 1. Base plate; 2. Bracket; 201. Cylinder; 3. Machine housing body; 4. Inner column; 401. Limiting plate; 402. Base support; 403. Groove; 404. Limiting block; 405. Guide plate; 406. Insertion port; 407. Limiting groove; 5. Insert plate; 501. Vertical rod; 6. Clamping mechanism; 601. Clamping housing; 602. Pressure claw; 603. Movable sleeve; 604. Fixed plate; 605. Inward tilting opening. Detailed Implementation

[0022] As shown in Figures 1 to 4, the welding fixture for the water channel cover of an aluminum alloy water-cooled machine casing according to this utility model includes a bracket 2, an inner column 4, and a clamping mechanism 6. The inner column 4 is installed at the middle of the upper end face of the base plate 1, and the outer side of the inner column 4 is sleeved with the casing body 3. The bracket 2 is arranged in a ring array on the outer side of the inner column 4 on the base plate 1. A cylinder 201 is provided at the top of the bracket 2, and the clamping mechanism 6 is installed at the front end of the cylinder 201. Limiting plates 401 are arranged in a ring array at the upper outer side of the inner column 4, and bottom supports 402 are arranged in a ring array at the lower outer side of the inner column 4. The limiting plates 401 correspond to the bottom supports 402. A groove 403 is opened on the outer side of the bottom support 402, and a guide plate 405 is slidably installed in the groove 403. An insertion port 406 is opened at the bottom of the guide plate 405, and a limiting groove 407 is opened in the middle of the guide plate 405. A limiting block 404 is provided in the groove 403 of the bottom support 402. The limiting block 404 and the limiting groove 407 of the guide plate 405 are connected. The outer end of the upright rod 501 is provided with an inclined surface, and the inclined surface corresponds to the inclined opening of the insertion port 406. The machine housing body 3 is sleeved on the outside of the inner column 4. Then, the cylinder is started to drive the movable sleeve 603 to move outward. The movable sleeve 603 simultaneously drives the clamping shell 601 to move outward. The inner inclined opening 605 of the clamping shell 601 squeezes the pressure claw 602, causing the pressure claw 602 to deflect. The pressure claw 602 closes and clamps the outer wall of the machine housing body 3. Through the squeezing clamping method, a single clamping mechanism is fixed by double pressure claws 602. Through the above structural design, the device can be fixed by multiple clamping methods. When the clamping of a single cylinder 201 is unstable due to insufficient air pressure, the adjacent mechanism can also play a good stabilizing role due to double claw clamping. This avoids affecting the clamping effect when there are problems with the pipeline or cylinder, and ensures the quality of processing.

[0023] As shown in Figures 2 to 5, the welding fixture for the water channel cover of an aluminum alloy water-cooled machine casing according to this utility model includes a bracket 2, an inner column 4, and a clamping mechanism 6. The clamping mechanism 6 consists of a clamping shell 601, a movable sleeve 603, and a fixing plate 604. The fixing plate 604 is fixed at the middle of the front end of the cylinder 201. The clamping shell 601 and the movable sleeve 603 are slidably sleeved on the outside of the fixing plate 604, and the cylinder 201 is connected to the movable sleeve 603. The clamping shell 601 has inwardly inclined openings 605 on both sides of its interior. The rear end of the clamping shell 601 is connected to the front end of the movable sleeve 603. The front ends of the fixing plate 604 are rotatably mounted with pressure claws 602 via rotating shafts. The pressure claws 602 have an open design, and the rear inclined surface of the pressure claws 602 is adapted to the inwardly inclined openings 605 of the clamping shell 601. The rear opening is adapted to the rotating connection of the pressure claw 602 and the fixing plate 604. After the pressure claw 602 closes, it clamps the outer wall of the housing body 3. The upper end of the guide plate 405 corresponds to the bottom of the housing body 3. When the clamping shell 601 moves outward, the insert plate 5 is moved synchronously through the upright 501. The insert plate 5 is inserted into the insertion port 406 and the guide plate 405 is lifted through the inclined surface. The upper end of the guide plate 405 presses the bottom of the housing body 3. The clamping structure of the pressure claw 602 ensures the stability of the bottom of the housing body 3. Through the above structure, it avoids the large gap caused by the different inner diameter of the housing body 3, which cannot perfectly fit with the inner column 4. The pressure claw 602 clamps and fixes the upper outer side of the housing body 3, and the bottom of the housing body 3 cannot be effectively limited, which causes eccentric shaking and further ensures stability.

[0024] Working principle: This embodiment provides a welding fixture for the water channel cover of an aluminum alloy water-cooled housing. In use, the housing body 3 is sleeved on the outside of the inner column 4. Then, the cylinder is started to drive the movable sleeve 603 to move outward. The movable sleeve 603 simultaneously drives the clamping housing 601 to move outward. The inward inclined opening 605 of the clamping housing 601 squeezes the pressure claw 602, causing the pressure claw 602 to deflect. The pressure claw 602 closes and clamps the outer wall of the housing body 3. Through the squeezing clamping method, the single clamping mechanism is fixed by the double pressure claw 602. When the clamping housing 601 moves outward, the upright 5 drives the insert 5 to move simultaneously. The insert 5 is inserted into the insertion port 406 and drives the guide plate 405 to rise through the inclined surface. The upper end of the guide plate 405 squeezes the bottom of the housing body 3. The clamping structure of the pressure claw 602 ensures the stability of the bottom of the housing body 3.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A welding fixture for a water channel cover plate of an aluminum alloy water-cooled machine casing, comprising a bracket (2), an inner column (4), and a clamping mechanism (6), characterized in that: The inner column (4) is installed at the middle of the upper end face of the base plate (1). The outer side of the inner column (4) is sleeved with the housing body (3). The brackets (2) are arranged in a ring array on the outer side of the inner column (4) on the base plate (1). The top of the bracket (2) is provided with a cylinder (201). The clamping mechanism (6) is installed at the front end of the cylinder (201). The clamping mechanism (6) is composed of a clamping shell (601), a movable sleeve (603) and a fixing plate (604). The fixing plate (604) is fixed at the middle of the front end of the cylinder (201). The clamping shell (601) and the movable sleeve (603) are slidably sleeved on the outside of the fixing plate (604). The cylinder (201) is connected to the movable sleeve (603).

2. The welding tooling for an aluminum alloy water jacket cover plate of a water-cooled housing according to claim 1, characterized in that: The upper outer side of the inner column (4) is provided with a ring array of limiting plates (401), and the lower outer side of the inner column (4) is provided with a ring array of bottom supports (402), with the limiting plates (401) corresponding to the bottom supports (402).

3. The welding tooling for an aluminum alloy water jacket cover plate of a water-cooled housing according to claim 2, characterized in that: The bottom support (402) has a groove (403) on its outer side, and a guide plate (405) is slidably installed in the groove (403). The bottom of the guide plate (405) has an insertion port (406), and a limiting groove (407) is provided in the middle of the guide plate (405).

4. The welding tooling for an aluminum alloy water jacket cover plate of a water-cooled housing according to claim 3, characterized in that: The bottom support (402) has a limiting block (404) in the groove (403), and the limiting block (404) is connected to the limiting groove (407) of the guide plate (405). The outer end of the upright (501) has an inclined surface, and the inclined surface corresponds to the inclined opening of the insertion port (406).

5. The welding fixture of claim 4, wherein: The clamp housing (601) has inward openings (605) on both sides inside. The rear end of the clamp housing (601) is connected to the front end of the movable sleeve (603). The front ends of the fixed piece (604) are rotatably mounted with pressure claws (602) via rotating shafts.

6. The welding tooling for an aluminum alloy water jacket cover plate of a water-cooled housing according to claim 5, characterized in that: The pressure claw (602) has an open design, and the rear inclined surface of the pressure claw (602) is adapted to the inward inclined opening (605) of the clamp housing (601).

7. The welding fixture for an aluminum alloy water-cooled housing water channel cover according to claim 6, characterized in that: The rear opening of the clamp housing (601) is adapted to the rotating connection of the pressure claw (602) and the fixing plate (604). After the pressure claw (602) is closed, it clamps the outer wall of the housing body (3). The upper end of the guide plate (405) corresponds to the bottom of the housing body (3).

Images