Mold, insert and clamp for insert
Through the matching of tenons and grooves between the mold and the insert, and the design of movable finger claws and side-push cylinders, the problem of difficult insert molding in the die-casting process is solved, the operation efficiency and safety are improved, and the accuracy of the molded parts is ensured.
Patent Information
- Application Number
- CN202510719739.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-07-25
AI Technical Summary
In the die-casting process, it is difficult to release complex shell parts, especially in high temperature environments, manual insert placement efficiency is low and safety risks are posed.
The tenon and groove between the mold and the insert is designed to cooperate with the tenon and groove. There is a draft angle between the tenon and the tenon and groove. The movable finger claws and side-push cylinders are combined to achieve accurate positioning of the insert, reducing the initial positioning accuracy requirements.
It improves the pick-up and placement efficiency of the insert, improves the overall operating efficiency, reduces the fixture positioning accuracy requirements, and ensures the accuracy and safety of the molded parts.
Smart Images
Figure CN120362450A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of forming molds, and particularly to a mold, an insert, and a fixture for the insert. Background Art
[0002] When producing aluminum shell parts by die-casting process, the design of the internal cavity of the shell is usually relatively complex. In this case, even if the parting line is carefully designed, it is impossible to achieve the smooth demolding of the product in some designs. Therefore, it is necessary to design the local part of the mold that interferes with the smooth demolding into a detachable insert. It is placed before die-casting molding, and the insert is taken out first before taking out the die-cast molded part and other molded parts, so that the molded part no longer interferes with the mold, and then the molded part is taken out.
[0003] In high-pressure die-cast products, due to the relatively special structure of some products, inserts need to be placed in each mold during the production process. Traditionally, manual placement is used, which has low efficiency, and the highest temperature of some parts of the mold can reach more than 300 °C during the placement process, posing potential safety hazards, etc. Summary of the Invention
[0004] In order to ensure the fitting accuracy between the insert and the mold and provide a reasonable pick-and-place solution to improve work efficiency, this application provides a mold, an insert, and a fixture for the insert.
[0005] This application provides a mold having a mortise groove that mates with a tenon on the insert. The mortise groove is open at least at one end of its extension and forms a draft angle along the extension direction, so that the space at the opening is larger; Alternatively, it has a tenon that mates with a mortise groove on the insert and forms a draft angle along the extension direction, so that the end of the tenon that first enters the mortise groove is smaller.
[0006] Preferably, the mortise groove has an opening width smaller than its internal space, and the tenon has a root width smaller than its head width.
[0007] Preferably, the draft angle is 5-15 degrees.
[0008] This application provides an insert having a mortise groove that mates with a tenon on the mold. The mortise groove is open at least at one end of its extension and forms a draft angle along the extension direction, so that the space at the opening is larger; Alternatively, it has a tenon that mates with a mortise groove on the mold and forms a draft angle along the extension direction, so that the end of the tenon that first enters the mortise groove is smaller.
[0009] Preferably, the mortise groove has an opening width smaller than its internal space, and the tenon has a root width smaller than its head width.
[0010] Preferably, the draft angle is 5-15 degrees.
[0011] The present application provides a fixture for inserts, comprising: At least two movably arranged fingers for clamping the insert, and the insert can be clamped when the two fingers approach each other relatively. A side push cylinder arranged on the side of the insert clamped by the fingers, and the side push cylinder is used to push the insert laterally from the side of the insert. The pushing direction is the direction in which the tenon or mortise of the insert extends.
[0012] Preferably, the fingers are rotatably arranged around their respective rotation axes or movably arranged on a preset base.
[0013] The mold of the present application realizes the combined positioning between the mold and the insert through the cooperation between the tenon and the mortise between the mold with a draft angle and the insert. Without requiring precise initial positioning, the guiding effect generated by the draft angle design can achieve tight and precise positioning between the mold and the insert in the final state. Since precise initial positioning is not required, the requirement for the positioning accuracy of the fixture can be reduced, thereby improving the operation efficiency of picking and placing the insert and the overall operation efficiency. Description of the Drawings
[0014] Figure 1 It is a schematic structural diagram of the transmission housing mold of the present application; Figure 2 It is a schematic structural diagram of the mold and the insert of the present application; Figure 3 It is a schematic cross-sectional structural diagram of the mold and the insert of the present application; Figure 4 It is a schematic structural diagram of the fixture for inserts of the present application.
[0015] In the figure: 1: mold; 2: insert; 3: fixture; 31: finger; 32: side push cylinder; 91: tenon; 92: mortise. Detailed Description of the Embodiment
[0016] The following combines the drawings and specific embodiments to detail the technical solutions of the present application. In this specification, the dimensions in the drawings do not represent the actual dimension ratios. The drawings are only used to reflect the relative positional relationship and connection relationship between the components. Components with the same name or the same reference numeral represent similar or the same structures, and are only for illustrative purposes.
[0017] Figure 2This is a partial view of the mold 1 for installing the insert 2 of the present application and the structure diagram of the insert 2. As shown in the figure, in order to achieve a reliable connection between the mold 1 and the insert 2, especially after the insert 2 is installed on the mold 1, the insert 2 will not detach from the mold 1. There should be a certain mating structure between the mold 1 and the insert 2 to achieve reliable positioning in the preset direction. Such a mating structure can usually be the mating between a tenon and a corresponding mortise.
[0018] Figure 1 This is an embodiment of such a fixing method. A mortise structure is provided at the preset position of the mold 1 for installing the insert 2. Correspondingly, a corresponding tenon structure is provided at the corresponding position of the insert 2. The splicing of the tenon and the mortise realizes the limit between the two in the normal direction of the fixed surface.
[0019] As shown in the figure, the mortise has an opening width smaller than the internal space, and the corresponding tenon has a root width smaller than its head width. The purpose is that after the tenon and the mortise are combined, the two are limited in the depth direction. Here, the width correspondingly refers to the dimension in a specific direction of the structure. In order to realize the combination between the tenon and the mortise, the mortise is generally configured to open at at least one end of the side of the groove, and the tenon can slide into the mortise from this opening. And after sliding in place, the above-mentioned limit function in the depth direction is realized.
[0020] It can be understood that there is no restriction on which of the tenon 91 and the mortise 92 is provided on the insert 2 and which is provided on the mold 1. This means that without further consideration, the technical solutions of setting the tenon 91 on the insert 2 and setting the tenon 91 on the mold 1 are equivalent. Further, as shown in the figure, in a specific embodiment, the mortise 92 can have a dovetail groove with a trapezoidal cross-section, and the tenon 91 can be a dovetail tenon with a trapezoidal cross-section. Other cross-sectional shapes of the tenon and the mortise that meet the above conditions are also acceptable. For example, the tenon 91 and the mortise 92 can have a T-shaped cross-section, and the root of the tenon 91 is the detail of the T-shaped cross-section.
[0021] Usually, in order to ensure the fitting accuracy, a relatively precise fit is required between the tenon 91 and the mortise 92 to prevent the insert 2 from still shaking after being limited to the mold 1. In order to achieve a reliable and stable fitting relationship, preferably, the tenon 91 and the mortise 92 have a certain draft angle in the direction of their respective extensions, and this angle is preferably 5-15 degrees in actual application. Among them, this angle setting usually makes the mortise 92 have a larger space at the side opening. As Figure 2As shown, when the tenon 91 is inserted into the mortise 92, due to the existence of the draft angle, there is a large gap in the width dimension between the two when the tenon 91 just enters the mortise 92. Therefore, it is convenient to align the tenon 91 with the mortise 92. In other words, at this time, a larger tolerance space can be provided for the tenon 91. Therefore, it is not required that the tenon 91 be precisely aligned with the side opening of the mortise 92. In this case, the robotic arm used to transfer and pick up the insert 2 can be set with a faster end speed and the precise adjustment process after stopping can be cancelled. Therefore, this can improve the speed of picking up and placing the insert 2 and improve production efficiency. On the other hand, when there is a certain draft angle, when the mortise 92 slides into place, necessarily, the tight fit between the mortise 92 and the tenon 91 can be ensured by compensating for the position of the mortise 92 in the sliding direction, thereby ensuring the limiting accuracy of the insert 2.
[0022] Taking Figure 1 the shown transmission housing and its die-casting mold as an example, it should be noted that the fitting accuracy between the insert and the mold should meet the requirements to ensure the forming accuracy of the formed part at the local part where the insert is located. On the other hand, since the operation of picking up and placing the insert needs to be completed in each forming process, this means that the operation of picking up and placing the insert will significantly affect the production efficiency of the entire forming process. Therefore, improving the operation efficiency of picking up and placing the insert is also an important aspect.
[0023] Based on the above connection relationship between the mold 1 and the insert 2, the present application also provides a fixture for the insert. As shown in Figure 3 the figure, it has at least two fingers 31 that are movably arranged for clamping the insert 2. In the illustrated embodiment, a scheme of two relatively movably arranged fingers 31 is adopted. When the two fingers 31 approach each other relatively, the insert 2 can be clamped. The two fingers 31 can be configured to rotate around their respective rotation axes or move on a given base. Whether they rotate or translate, the execution ends of the two fingers 31 can always be made to approach each other to clamp the insert 2. Embodiments with more than two fingers 31 can also be set. At this time, the multiple fingers 31 can be arranged circumferentially along the insert 2 to achieve the purpose of clamping the insert 2 from different directions.
[0024] Regarding the finger 31, in the case of clamping the insert 2, the fixture 3 can initially place the insert 2 into the mortise 92 of the mold 1. However, due to the limited accuracy of the fixture and the moving components where the fixture is located, such as the robotic arm, it is not required that the fixture 3 place the insert 2 completely in place. If this must be achieved, due to the mismatch in the position between the fixture 3 and the mold 1, a relatively large lateral force may be formed inside the system. This is not conducive to the reliable operation of the system.
[0025] Therefore, in addition, the fixture 3 further includes a side push cylinder 32 disposed on the side of the insert 2 clamped by the finger 31. The side push cylinder 32 is used to laterally push the insert 2 from the side of the insert 2. The pushing direction is generally the direction in which the tenon 91 or the mortise 92 of the insert 2 extends. After the insert 2 is only initially placed in the mold 1, the finger 31 releases the insert 2, and then the side push cylinder 32 operates to push the insert 2 into place. When taking out the part, only the finger 31 clamps the insert 2 and then removes it from the mold 1.
[0026] The above content is only a description of the preferred embodiment of the present application, and does not limit the scope of the present application. Without departing from the design spirit of the present application, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present application should fall within the protection scope determined by the claims of the present application.
Claims
1. A mold for receiving the installation of an insert (2), characterized in that, It has a mortise groove (92) that mates with a tenon (91) on the insert (2). The mortise groove (92) is open at at least one end of its extension and forms a draft angle along the extension direction, so that the space at the opening is larger. Alternatively, it has a tenon (91) that mates with the mortise groove (92) on the insert (2) and forms a draft angle along the extension direction, so that the end of the tenon (91) that first enters the mortise groove (92) is smaller.
2. The mold according to claim 1, characterized in that, The mortise groove (92) has an opening width smaller than its internal space, and the tenon (91) has a root width smaller than its head width.
3. The mold according to claim 1, characterized in that, The draft angle is 5 - 15 degrees.
4. An insert removably disposed on a mold (1), characterized in that, It has a mortise groove (92) that mates with a tenon (91) on the mold (1). The mortise groove (92) is open at at least one end of its extension and forms a draft angle along the extension direction, so that the space at the opening is larger. Alternatively, it has a tenon (91) that mates with the mortise groove (92) on the mold (1) and forms a draft angle along the extension direction, so that the end of the tenon (91) that first enters the mortise groove (92) is smaller.
5. The insert according to claim 4, characterized in that, The mortise groove (92) has an opening width smaller than its internal space, and the tenon (91) has a root width smaller than its head width.
6. The insert according to claim 4, wherein The draft angle is 5 - 15 degrees.
7. A fixture for inserts, characterized in that, It includes: At least two movably arranged fingers (31) for clamping the insert (2), and the two fingers (31) can clamp the insert (2) when they approach each other relatively. A side - push cylinder (32) arranged on the side of the insert (2) clamped by the fingers (31). The side - push cylinder (32) is used to push the insert (2) laterally from the side of the insert (2), and the pushing direction is the direction in which the tenon (91) or the mortise groove (92) of the insert (2) extends.
8. The insert according to claim 7, wherein The fingers (31) are rotatably arranged around their respective rotation axes or are movably arranged on a preset base.