Forming mechanism based on side wall inwards-concave structure of frame type die casting

Abstract

The utility model discloses a forming mechanism based on a side wall inward concave structure of a frame type die casting, a sliding block comprises a body and a forming part located at the front end of the body, sliding grooves perpendicular to the extending direction of the body are formed in the two sides of the body, and a forming face of a concave-convex structure is arranged on the end face of the forming part; the connecting arm is matched with the sliding groove, the connecting arm is located in the sliding groove and slides along the sliding groove, a tunnel hole is formed in the sliding way seat, and the body is arranged in the tunnel hole; the driving steering of the transmission rod to the sliding block is realized through the matching of the connecting arm and the sliding chute and the direction positioning of the slideway seat, so that the sliding block is switched between a die-casting state and a core-pulling state, the switching of azimuth angles can be realized in a narrow and compact space, the core-pulling stroke is shortened, and the forming of a side wall inward concave structure of the frame type die casting is completed.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, and in particular to a forming mechanism based on the concave sidewall structure of a frame die casting. Background Technology

[0002] In die casting, core-pulling structures are one of the key technologies for forming complex-shaped die castings. For die castings with concave sidewalls, traditional core-pulling structures often fail to meet their forming requirements. Core-pulling for concave sidewalls requires addressing issues such as difficult demolding, easy mold damage, and reduced production efficiency. However, for frame-type die castings with concave sidewalls, core-pulling faces even more unique challenges, such as the spatial constraints of the frame structure and variations in the depth and angle of the concave sidewalls, making general core-pulling structures unsuitable.

[0003] Patent document CN119237706A discloses a mold with a mother-daughter core-pulling structure, including a mold body and a mother-daughter core-pulling mechanism. The mother-daughter core-pulling mechanism includes a mother mold assembly and a daughter mold assembly. The mother mold assembly has a daughter mounting base, a mother drive assembly, and a mother core, while the daughter mold assembly includes a daughter drive assembly and a daughter core. The mother mold assembly and the daughter mold assembly work together to achieve core-pulling actions in different directions, eliminating the need for multiple core-pulling mechanisms or machining, thus improving production efficiency. Although this patent's mother-daughter core-pulling structure can achieve core-pulling in different directions, for the concave sidewall structure of frame die-cast parts, the complex internal space and multi-directional core-pulling requirements may be difficult to meet through simple mother-daughter collaboration.

[0004] Patent document CN218050260U discloses an oblique core-pulling mechanism including a core-pulling cylinder and a drive block. The drive block is provided with an oblique protrusion. The insert includes a separate insert body and insert head. One end of the insert body has a groove, and the other end is detachably connected to the insert head. The protrusion is movably disposed in the groove. The drive block can drive the insert to extend and retract. This oblique core-pulling mechanism is suitable for forming general side concavities or side holes. However, for the side wall concave structure of frame die-casting parts, the insert head will be subjected to excessive pressure when in contact with the molten aluminum, making die casting difficult and the insert head extremely easy to be damaged, thus making it difficult to complete the subsequent smooth core pulling.

[0005] Patent document CN118832135A discloses a core-pulling structure for die-casting molds, including a die-casting mold cavity containing a die-cast product. An upper core-pulling mechanism A and a lower core-pulling mechanism B are respectively attached to the side and front of the product. The upper core-pulling mechanism A has a limiting protrusion on its side, and the lower core-pulling mechanism B has a matching limiting groove on its side; the two are nested together. This double-layer core-pulling anti-retraction structure is suitable for products with different ejection directions in the upper and lower layers. However, for the concave sidewall structure of frame-type die-casting parts, the movement direction and limiting design of the upper and lower core-pulling mechanisms may not be suitable for the complex concave shape of the frame structure. Especially when the concave sidewall structure is distributed on different sides of the frame and in different directions, this simple nested connection method makes it difficult to achieve precise core-pulling action, easily leading to problems such as incomplete or excessive core pulling. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to provide a forming mechanism with a side wall concave structure based on a frame die casting part, which can offset part of the pressure of the contact part during die casting and can successfully complete the core pulling.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a forming mechanism based on the side wall concave structure of a frame die casting, including a transmission rod, a slide seat and a slider; the transmission rod includes a base and two parallel and spaced connecting arms located at the front end of the base; the slider includes a body and a forming part located at the front end of the body, and the body is provided with grooves on both sides that match the connecting arms, and the connecting arms are located in the grooves and slide along the grooves;

[0008] The first direction, the second direction, and the third direction are three directions in two-dimensional space. The base extends along the first direction, the connecting arm and the slide extend along the second direction, and the body extends along the third direction. The first direction and the second direction intersect at an obtuse angle, and the second direction and the third direction are perpendicular.

[0009] The slide seat is provided with a guide hole extending in a first direction and a tunnel hole extending in a third direction; the base is located in the guide hole, and the body is located in the tunnel hole; the connecting arm is located in the confluence groove of the guide hole and the tunnel hole.

[0010] The transmission rod is driven to reciprocate linearly along the guide hole in a first direction, and the connecting arm drives the slider to reciprocate linearly along the tunnel hole in a third direction, so that the slider can switch between the die-casting state and the core-pulling state.

[0011] The end of the connecting arm is provided with a supporting plane, and the rear wall of the confluence groove is provided with a mating surface that matches the end of the connecting arm; the mating surface and the supporting plane abut against each other, which is used to support the transmission rod and the slider when the transmission rod drives the slider to be in the die-casting state, thereby offsetting part of the instantaneous pressure during die-casting.

[0012] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: it includes an oil cylinder, the piston rod of the oil cylinder is connected to the transmission rod, and the transmission rod is driven by the action of the oil cylinder.

[0013] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the molding part includes a molding surface, the molding surface has a concave-convex structure and extends along a fourth direction, the fourth direction is the fourth direction of the two-dimensional space; the fourth direction and the third direction form an acute angle.

[0014] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the supporting plane and the rear side of the base are located on the same plane; the guide hole wall supports the front and rear sides of the base, thereby offsetting part of the instantaneous pressure during die casting together with the abutment surface and the supporting plane.

[0015] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the end of the connecting arm includes a front inclined surface and a rear inclined surface, and the front inclined surface and the rear inclined surface intersect to form a pointed part; the end of the connecting arm is provided with a wear-resistant part, and the front inclined surface and the rear inclined surface are provided on the wear-resistant part.

[0016] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the slider is provided with a cooling water channel, the cooling water channel bends after passing from the rear end of the body to the forming part, and the rear end of the body is provided with an inlet and an outlet of the cooling water channel.

[0017] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a forming mechanism based on the side wall concave structure of a frame die casting, including a hydraulic cylinder, a transmission rod, a slide seat and a slider; the transmission rod includes a base and two parallel and spaced connecting arms located at the front end of the base; the base and the connecting arms extend at an obtuse angle;

[0018] The piston rod of the hydraulic cylinder is connected to the rear end of the base, thereby driving the transmission rod through the action of the hydraulic cylinder;

[0019] The slider includes a body and a molding part located at the front end of the body. The body has grooves on both sides perpendicular to its extension direction, and the end face of the molding part has a molding surface with concave and convex structure.

[0020] The connecting arm matches the slide groove, the connecting arm is located in the slide groove and slides along the slide groove, the slide seat is provided with a tunnel hole, and the body is disposed in the tunnel hole;

[0021] The connecting arm, the slide groove, and the slide seat cooperate to drive the slider to change direction. The drive rod is driven to reciprocate linearly along the guide hole, and the connecting arm drives the slider to reciprocate linearly along the tunnel hole, so that the slider can switch between the die-casting state and the core-pulling state.

[0022] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the first direction, the second direction, the third direction, and the fourth direction are four straight lines in two-dimensional space; the base extends along the first direction, the connecting arm and the slide extend along the second direction, the body, the forming part and the tunnel hole extend along the third direction, and the forming surface extends along the fourth direction; the first direction and the second direction intersect at an obtuse angle, the second direction and the third direction are perpendicular, and the fourth direction and the third direction form an acute angle.

[0023] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the slide seat is provided with a guide hole, the base is located in the guide hole, and the connecting arm is located in the confluence groove of the guide hole and the tunnel hole; the end of the connecting arm is provided with a support plane; the support plane and the rear side of the base are located on the same plane; the rear wall of the confluence groove is provided with an abutment surface that matches the end of the connecting arm;

[0024] The guide hole wall supports the front and rear sides of the base, and together with the abutment surface and the support plane, it supports the transmission rod and the slider when the transmission rod drives the slider in the die-casting state, thereby offsetting some of the instantaneous pressure during die-casting.

[0025] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the slider is provided with a cooling water channel, the cooling water channel bends after passing from the rear end of the body to the forming part, and the rear end of the body is provided with an inlet and an outlet of the cooling water channel.

[0026] Compared with the prior art, the advantages of this utility model are as follows: the cooperation between the connecting arm and the slide groove and the directional positioning of the slide seat realize the driving and steering of the transmission rod to the slider. The transmission rod is driven to move linearly and reciprocally along the guide in the first direction. The connecting arm drives the slider to move linearly and reciprocally along the tunnel hole in the third direction, so that the slider can switch between the die-casting state and the core-pulling state. This enables the switching of the orientation angle in a narrow and compact space, shortens the core-pulling stroke, and completes the forming of the concave side wall structure of the frame die-casting part. Attached Figure Description

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0028] Figure 1 A schematic diagram of a molding mechanism for a sidewall concave structure of a frame die-casting part. Figure 1 ;

[0029] Figure 2 A schematic diagram of a molding mechanism for a sidewall concave structure of a frame die-casting part. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the internal structure of a molding mechanism based on the concave sidewall structure of a frame die-casting part. Figure 1 ;

[0031] Figure 4 This is a molding mechanism based on the concave sidewall structure of a frame-type die-cast part. Figure 3 A magnified view of a portion of the image;

[0032] Figure 5 This is a schematic diagram of the internal structure of a molding mechanism based on the concave sidewall structure of a frame die-casting part;

[0033] Figure 6 This is a molding mechanism based on the concave sidewall structure of a frame-type die-cast part. Figure 5 A magnified view of a portion of the image;

[0034] Figure 7 An exploded view of a molding mechanism based on a sidewall concave structure of a frame die-casting part;

[0035] Figure 8 This invention relates to a molding mechanism and corresponding accessories based on the concave sidewall structure of a frame die-casting part.

[0036] Figure label:

[0037] Transmission rod 1; slide seat 2; slider 3; oil cylinder 4; guide baffle 5; body 31; forming part 32; forming surface 34; slide groove 33; base 11; connecting arm 12; first direction Y1; second direction Y2; third direction Y3; fourth direction Y4; tunnel hole 21; guide hole 22; confluence groove 23; abutment surface 24; front inclined surface 122; support plane 121; oil groove S; cooling water channel L; wear-resistant part K. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0039] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0041] like Figure 1 As shown, this embodiment provides a molding mechanism for a sidewall concave structure based on a frame die-casting part, including a transmission rod 1, a slide seat 2, and a slider 3. The transmission rod 1 connects to the slider 3, and the slide seat 2 provides support, guidance, and limitation for the transmission rod 1 and the slider 3. Under the action of the driving structure, the transmission rod 1 reciprocates linearly along its motion trajectory. This motion is achieved by a special connection between the transmission rod 1 and the slider 3, as well as the limitation provided by the slide seat 2, which in turn drives the slider 3 to reciprocate linearly along a different motion trajectory that is inconsistent with the motion direction of the transmission rod 1.

[0042] Specifically, such as Figure 6 As shown, the slider 3 includes a body 31 and a molding part 32 located at the front end of the body 31. The body 31 has grooves 33 on both sides, and the end face of the molding part 32 has a molding surface 34 with a concave-convex structure. Figure 7 As shown, the transmission rod 1 includes a base 11 and two parallel, spaced-apart connecting arms 12 located at the front end of the base 11. Figure 1-4 As shown, the connecting arm 12 matches the slide groove 33, and the connecting arm 12 is located in the slide groove 33 and slides along the slide groove 33.

[0043] like Figure 4-6 As shown, the first direction Y1, the second direction Y2, and the third direction Y3 are three directions in two-dimensional space.

[0044] like Figure 6As shown, the base 11 extends along a first direction Y1, and the connecting arm 12 extends along a second direction Y2, with the base 11 and the connecting arm 12 extending at an obtuse angle. Figure 7-8 As shown, the slide seat 2 is provided with a tunnel hole 21, and the body 31 is located in the tunnel hole 21. The tunnel hole 21 extends in the third direction Y3, which is consistent with the extension direction of the body 31 itself.

[0045] More preferably, such as Figure 4-5 As shown, one side of the forming part 32 is provided with a forming surface 34 with a concave-convex structure, which matches the concave structure of the side wall of the frame die casting. The forming surface 34 extends along the fourth direction Y4 in the above-mentioned two-dimensional space, and the fourth direction Y4 and the third direction Y3 form an acute angle.

[0046] During die casting, the drive structure drives the transmission rod 1 to move towards the side closer to the die casting cavity, and the base 11 of the transmission rod 1 advances forward along a straight trajectory in the first direction Y1. Simultaneously, the front side of the connecting arm 12 presses against the front inner wall of the slide groove 33 of the slider 3, thereby shifting the position of the slider 3. Because the movement trajectory of the slider 3 is restricted by the slide seat 2, it can only advance towards one side of the die casting cavity along a straight trajectory in the third direction Y3. As the slider 3 advances towards one side of the die casting cavity, the connecting arm 12 extends into the slide groove 33 along the slide groove 33. The free sliding cooperation between the connecting arm 12 and the slide groove 33 ensures this drive steering. Ultimately, the forming part 32 enters the die casting cavity, forming the die casting state.

[0047] During core removal, the drive mechanism drives the transmission rod 1 to move away from the die-casting cavity, and the base 11 of the transmission rod 1 retracts along a straight path in the first direction Y1. Simultaneously, the rear side of the connecting arm 12 presses against the rear inner wall of the slide groove 33 of the slider 3, thus shifting the position of the slider 3. Because the movement trajectory of the slider 3 is restricted by the slide seat 2, it can only retract along a straight path in the third direction Y3 away from the die-casting cavity. As the slider 3 retracts, the depth of the connecting arm 12 within the slide groove 33 decreases. Ultimately, the forming part 32 completely exits the die-casting cavity, forming a core-removed state. Then, the product is ejected, and the drive structure further drives the transmission rod 1 to move closer to the die-casting cavity, entering the next die-casting cycle.

[0048] In summary, the cooperation between the connecting arm 12 and the slide groove 33, along with the directional positioning of the slide seat 2, enables the transmission rod 1 to drive and steer the slider 3. Driven, the transmission rod 1 reciprocates along the guide hole 22 in the first direction Y1, while the connecting arm 12 drives the slider 3 to reciprocate along the tunnel hole 21 in the third direction Y3. This allows the slider 3 to switch between die-casting and core-pulling states, enabling the switching of orientation angles within a confined space, shortening the core-pulling stroke, and completing the forming of the concave sidewall structure of the frame die-casting part. This technical solution has good adaptability and can be adjusted according to different frame die-casting parts with varying shapes and sizes. For example, by changing the size or shape of the slide groove 33 and the connecting arm 12, it can adapt to concave sidewall structures of different depths and angles. This flexibility makes this invention not only applicable to specific frame die-casting parts but also widely applicable to the production of other complex-shaped die-casting parts, demonstrating broad application prospects.

[0049] It should be noted that the connecting arm 12 and the slide 33 can be set on one side only. The double-sided setting is only to make the force more even and the structure more stable.

[0050] Preferably, such as Figure 1-3 As shown in Figures 7-8, the slide block 2 has a guide hole 22, and the base 11 is located within the guide hole 22 and moves along the guide hole 22. This not only provides physical support for the precise movement of the transmission rod 1, but also ensures the stability and accuracy of the transmission rod 1 during the reciprocating process. The base 11 is located within the guide hole 22 and moves smoothly and stably along the guide hole 22. This design greatly reduces friction and wear caused by deviation of the movement trajectory, thereby extending the service life of the slider 3 and the guide hole 22.

[0051] Furthermore, the connecting arm 12 is positioned within the confluence groove 23 of the guide hole 22 and the tunnel hole 21. This arrangement fully utilizes the spatial structure to achieve clearance, ensuring the stability and reliability of the connecting arm 12 during transmission. Moreover, as a key component of the transmission system, the stability and precision of the connecting arm 12 directly affect the performance of the entire system. By placing it within the confluence groove 23, it can more effectively resist external pressure and vibration, thereby ensuring the stability and durability of the transmission system.

[0052] Furthermore, such as Figure 2As shown, in the die-casting state, the front end of the connecting arm 12 extends beyond the slide groove 33 and is located in the confluence groove 23. The end of the connecting arm 12 is provided with a supporting plane 121, and the slide seat 2 is provided with a mating surface 24 that matches the end of the connecting arm 12. This design not only ensures a tight fit between the connecting arm 12 and the slide seat 2 during die casting, but also achieves effective mutual abutment through the supporting plane 121 at the end of the connecting arm 12 and the mating mating surface 24 on the slide seat 2. The mating surface 24 is located on the rear wall of the confluence groove 23, forming a stable support structure together with the supporting plane 121.

[0053] This support structure plays a crucial role in the die-casting process. When the drive rod 1 drives the slider 3 into the die-casting state, the close contact between the support plane 121 and the abutment surface 24 provides strong support for the drive rod 1 and the slider 3. This support not only enhances the stability of the mold under high pressure but also effectively offsets some of the instantaneous pressure generated during the die-casting process. This not only reduces the pressure impact on the drive mechanism, helping to reduce mold wear and extend mold life, but more importantly, it ensures the quality of the die-cast parts and production efficiency.

[0054] Furthermore, in the die-cast state, the front and rear sides of the hole wall support base 11 of the guide hole 22 also play a crucial role. Together with the abutment surface 24 and the support plane 121, they form a more stable support system. This system further enhances the mold's compressive strength during the die-casting process, enabling it to better withstand the challenges of high-pressure environments.

[0055] like Figure 4 , 6 As shown, in this embodiment, the angle between the first direction Y1 and the second direction Y2, i.e., the base 11 and the connecting arm 12, is 120 degrees. The third direction Y3 is perpendicular to the second direction Y2, i.e., the slide groove 33 is located in a vertical position on the slider 3 body 31. For example, in this embodiment, the travel of the transmission rod 1 is 30 mm, while the travel of the slider 3 only needs to be 15 mm.

[0056] like Figure 1-4 As shown, in this embodiment, the driving mechanism uses a hydraulic cylinder 4. The piston rod of the hydraulic cylinder 4 is connected to the rear end of the base 11, thereby driving the transmission rod 1 through the action of the hydraulic cylinder 4. The projected area of ​​the forming surface 34 of the forming part 32 is 3.06 cm². 2The die-casting pressure on the forming surface 34 in the third direction Y3 is 2.24T. The mechanism withstands the instantaneous impact of 2.24T by supporting the supporting plane 121 with the abutment surface 24 and by supporting the base 11 with the guide hole 22 wall. Through force decomposition, the mechanism needs to withstand a pressure impact of 1.12T in the first direction Y1. Due to the supporting effect, the force exerted by the slider 3 on the transmission rod 1 in the first direction Y1 is significantly less than 1.12T. Therefore, when the hydraulic cylinder 4 uses a thrust of 4.5T, it can fully meet the die-casting requirements.

[0057] Preferably, such as Figure 4 , 6 As shown, the end design of the connecting arm 12 includes a front inclined surface 122 and a rear inclined surface structure. The rear inclined surface is a support plane 121. These two surfaces intersect at a point to form a sharp tip. In the design of the slide seat 2, we innovatively designed its abutment surface 24 as an inclined surface. This change complements the inclined surface design of the connecting arm 12, ensuring that the two can form a tighter fit when in contact, thereby significantly improving the guiding nature of the connecting arm 12 during the sliding process, making its assembly and connection in complex environments smoother and more stable.

[0058] More importantly, the supporting plane 121 and the rear side of the base 11 are arranged on the same plane and both extend along the first direction Y1, while the rear side and the front side of the base 11 are parallel. This arrangement allows the system to distribute the load more evenly when under stress, effectively dispersing and absorbing the impact force generated during movement, further improving the stability and durability of the entire system. These seemingly simple geometric relationships actually have profound implications—they allow the impact force generated during die casting to be transmitted along a more reasonable and dispersed path, forming effective mutual support with the supporting structure, and thus being more effectively offset and absorbed, greatly reducing the risk of material fatigue and damage caused by impact. This design significantly reduces the maintenance frequency and replacement cost of the mold, reduces production downtime caused by mold repair, and thus further reduces production costs.

[0059] Furthermore, such as Figure 3 As shown, to enhance the durability and service life of the connecting arm 12, a wear-resistant part K is specially provided at the end of the connecting arm 12, and the front inclined surface 122 and the rear inclined surface are cleverly set on the wear-resistant part. The wear-resistant part is made of a special material with high strength and low coefficient of friction, which effectively resists long-term wear and ensures the stability and accuracy of the connecting arm 12 in high-frequency and high-load operation.

[0060] like Figure 4-6As shown, the surfaces of the slider 3 and the transmission rod 1 are provided with crisscrossing oil grooves S. The oil grooves S not only reduce friction and make the movement of the transmission rod 1 and the slider 3 smoother, but also prevent and ensure the smooth discharge of die-casting waste, thus ensuring the smooth progress of die-casting.

[0061] The layout of the oil grooves S ensures that the lubricating oil can evenly and fully cover the sliding contact surface, thereby effectively reducing the frictional resistance between the slider 3 and the transmission rod 1. This makes the transmission rod 1 drive the slider 3 to reciprocate more smoothly and without obstruction, reducing energy consumption and improving the overall system response speed. At the same time, the oil grooves S also act as natural chip removal channels, guiding the fine metal chips and other impurities generated during the die casting process to be smoothly discharged from the working area. This effectively avoids the blockage and wear of sliding parts by these die casting wastes, ensuring the continuity and stability of the die casting operation, and further improving production efficiency and product quality.

[0062] In a more preferred embodiment, such as Figure 4 As shown, the slider 3 innovatively incorporates a cooling water channel L. The cooling water channel L starts from the rear end of the slider body 31, meanders to the forming section 32, and then cleverly bends back, forming a highly efficient heat exchange network. In this embodiment, an inlet and an outlet are provided at the rear end of the body 31, and the cooling pipes are led out from the rear end of the slider 3. The cooling water circulates continuously, carrying away the large amount of heat accumulated in the slider 3 during the die-casting process, effectively preventing material thermal expansion, deformation, or even failure due to high temperatures. It should be noted that the staggered arrangement of the slider 3 and the transmission rod 1 ensures no interference between the cooling mechanism and the drive mechanism, providing ample space for the cooling mechanism within the slider 3. This cooling mechanism not only significantly extends the service life of the slider 3 but also ensures that the die-casting mold remains within an ideal temperature range, thereby improving the dimensional accuracy and surface quality of the die-cast parts and providing a solid guarantee for the production of high-quality products.

[0063] In another embodiment, the cylinder 4 body 31 is fixed to the moving mold side, and a guide baffle 5 is fixed to the front side of the cylinder 4 body 31, with the base 11 of the transmission rod 1 located between the two guide baffles 5. The guide baffles 5 provide physical support for the precise guidance of the transmission rod 1. The base 11 of the transmission rod 1 is cleverly positioned between the two guide baffles 5, forming a stable guiding channel. This design not only ensures the straightness and accuracy of the transmission rod 1 during reciprocating motion but also greatly reduces mechanical wear caused by offset or wobbling, thereby extending the service life of the transmission components. The tight fit between the guide baffles 5, the cylinder 4 body 31, and the transmission rod 1 also creates a relatively enclosed working environment, helping to reduce lubricant leakage and splashing, and keeping the working area clean and dry. This not only helps maintain the good operating condition of the equipment but also reduces production interruptions and quality problems caused by lubricant contamination.

[0064] This invention introduces a molding mechanism for a sidewall concave structure of a frame-type die-cast part. Specific examples are used to illustrate the principle and implementation of this invention. The descriptions of the embodiments are merely for the purpose of helping to understand this invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A forming mechanism based on the concave sidewall structure of a frame die-casting part, characterized in that: It includes a transmission rod, a slide block, and a slider; the transmission rod includes a base and two parallel, spaced-apart connecting arms located at the front end of the base; the surfaces of the slider and the transmission rod are provided with crisscrossing oil grooves; The slider includes a body and a molding part located at the front end of the body. The body has sliding grooves on both sides that match the connecting arm. The connecting arm is located in the sliding groove and slides along the sliding groove. The first direction, the second direction, and the third direction are three directions in two-dimensional space. The base extends along the first direction, the connecting arm and the slide extend along the second direction, and the body extends along the third direction. The first direction and the second direction intersect at an obtuse angle, and the second direction and the third direction are perpendicular. The slide seat is provided with a guide hole extending in a first direction and a tunnel hole extending in a third direction; the base is located in the guide hole, and the body is located in the tunnel hole; the connecting arm is located in the confluence groove of the guide hole and the tunnel hole. The transmission rod is driven to reciprocate linearly along the guide hole in a first direction, and the connecting arm drives the slider to reciprocate linearly along the tunnel hole in a third direction, so that the slider can switch between the die-casting state and the core-pulling state. The end of the connecting arm is provided with a wear-resistant part, which has a front inclined surface and a rear inclined surface. The front inclined surface and the rear inclined surface intersect to form a pointed part. The rear inclined surface is a support plane. The support plane and the rear side of the base are arranged on the same plane. The rear wall of the confluence groove is provided with a mating surface that matches the end of the connecting arm; the mating surface is an inclined surface; The abutting surface and the supporting plane abut against each other, which is used to support the transmission rod and the slider when the transmission rod drives the slider to be in the die-casting state, thereby offsetting part of the instantaneous pressure during die-casting; The guide hole wall supports the front and rear sides of the base, thereby offsetting some of the instantaneous pressure during die casting together with the abutment surface and the support plane.

2. The forming mechanism based on the concave sidewall structure of a frame die-casting part according to claim 1, characterized in that: It includes a hydraulic cylinder, the piston rod of which is connected to the transmission rod, thereby driving the transmission rod through the action of the hydraulic cylinder.

3. The forming mechanism based on the concave sidewall structure of a frame die-casting part according to claim 1, characterized in that: The forming part includes a forming surface, which has a concave-convex structure and extends along a fourth direction, which is the fourth direction of the two-dimensional space; the fourth direction and the third direction form an acute angle.

4. The forming mechanism based on the concave sidewall structure of a frame die-casting part according to claim 1, characterized in that: The slider is provided with a cooling water channel, which extends from the rear end of the body to the forming part and then bends. The rear end of the body is provided with an inlet and an outlet for the cooling water channel.

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