Die assembly fine positioning structure of die-casting die

Abstract

The utility model discloses a die assembly fine positioning structure of a die-casting die, which comprises a fixed die frame and a movable die frame which are arranged up and down, positioning bosses are arranged at the top corners of the periphery of the lower end face of the fixed die frame, and positioning concave parts matched with the positioning bosses are arranged on the upper end face of the movable die frame. At least one first positioning friction block is embedded in the edge, matched with the positioning concave part, of the positioning boss, and at least one second positioning friction block is embedded in the edge, matched with the positioning boss, of the positioning concave part. And when the fixed mold frame and the movable mold frame are closed, the first positioning friction block and the second positioning friction block which are matched in position are in contact with each other. The die-casting die can solve the problems that when an existing die-casting die is closed on a pressing machine, the die-casting die can deviate in the direction with large stress, and a movable die and a fixed die can deviate.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a die-casting mold precision positioning structure. Background Art

[0002] There are many types of molds with different structures. When the height difference of the mold parting is large, the mold will shift in the direction of greater force during production on the press, the movable mold and the fixed mold will be offset, and the guide pins and sleeves will rub on one side. Optimizing the mold structure becomes a top priority. Utility Model Content

[0003] The utility model provides a die-casting die clamping precision positioning structure, which has a simple structure and can solve the problem that the existing die-casting die will deviate to the direction of greater force when clamping on a press, and the movable die and the fixed die will be offset.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-casting mold clamping precision positioning structure, comprising: a fixed mold frame and a movable mold frame arranged in an upper and lower manner, the lower end surface of the fixed mold frame is provided with positioning bosses at the four corners, the upper end surface of the movable mold frame is provided with a positioning inner recess matching the positioning boss, the edge of the positioning boss matching the positioning inner recess is embedded with at least one first positioning friction block, the edge of the positioning inner recess matching the positioning boss is embedded with at least one second positioning friction block, when the fixed mold frame and the movable mold frame are clamped, the first positioning friction block and the second positioning friction block that are matched in position contact each other, by providing the positioning inner recess and the positioning boss, and the first positioning friction block and the second positioning friction block that correspond to each other, it can be achieved that the fixed mold frame and the movable mold frame will not be offset when the mold is clamped.

[0005] Preferably, a guide column is provided at a position inside the positioning boss on the fixed mold frame, and a guide hole is provided at a position inside the positioning recess on the movable mold frame. When the fixed mold frame and the movable mold frame are molded together, the guide column is inserted into the corresponding guide hole. The first positioning friction block and the second positioning friction block contact each other so that the guide column and the guide hole can cooperate with each other without the problem of one-sided friction.

[0006] Preferably, the first positioning friction block and the second positioning friction block are provided with inclined surfaces on their opposite side walls, so that when the fixed mold frame and the movable mold frame are closed, the first positioning friction block and the second positioning friction block will not generate large friction when in contact.

[0007] Preferably, the first positioning friction block and the second positioning friction block are both in the shape of long strips, and screw fixing holes are provided at both ends thereof to facilitate installation and fixation of the first positioning friction block and the second positioning friction block.

[0008] Preferably, when the fixed mold frame and the movable mold frame are molded together, the position of the second positioning friction block is higher than that of the first positioning friction block, so that the second positioning friction block and the first positioning friction block can be staggered to improve the positioning effect.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] A positioning boss and a positioning recess are respectively provided on the fixed mold frame and the movable mold frame. Meanwhile, a first positioning friction block and a second positioning friction block corresponding to each other are provided on the positioning boss and the positioning recess. When the mold is closed, the first positioning friction block and the second positioning friction block contact with each other, so that the fixed mold frame and the movable mold frame will not be offset when the mold is closed. The cooperation of the guide column and the guide hole between the fixed mold frame and the movable mold frame can also be positioned to prevent the problem of single-sided friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a half-section structural diagram of the mold of the utility model;

[0012] Figure 2 It is a top view of the structure of the movable mold frame of the utility model;

[0013] Figure 3 This is a top view of the fixed mold frame of the utility model;

[0014] Figure 4 for Figure 1 A magnified structural diagram;

[0015] Figure 5 It is a top view of the first positioning friction block and the second positioning friction block of the utility model;

[0016] Figure 6 It is a side view structural diagram of the first positioning friction block and the second positioning friction block of the utility model.

[0017] Reference numerals:

[0018] 1. Moving mold frame, 2. Fixed mold frame, 3. Guide pillar, 4. Guide hole, 5. First positioning friction block, 6. Second positioning friction block, 7. Positioning inner concave part, 8. Positioning boss, 9. Inclined surface, 10. Screw fixing hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1-6As shown, the utility model is to solve the problem that the existing die-casting mold will deviate in the direction of large force when the die is closed on the press, and the movable die and the fixed die will be offset. Provide the following technical solutions: a die-casting mold clamping precision positioning structure, including: a fixed die frame 2 and a movable die frame 1 arranged in an upper and lower manner, the lower end surface of the fixed die frame 2 is provided with positioning bosses 8 at the four corners, the upper end surface of the movable die frame 1 is provided with a positioning inner concave portion 7 matching the positioning boss 8, the edge of the positioning boss 8 matching the positioning inner concave portion 7 is embedded with at least one first positioning friction block 5, the edge of the positioning inner concave portion 7 matching the positioning boss 8 is embedded with at least one second positioning friction block 6, when the fixed die frame 2 and the movable die frame 1 are closed, the first positioning friction block 5 and the second positioning friction block 6 that match the position are in contact with each other, by setting the positioning inner concave portion 7 and the positioning boss 8, and the first positioning friction block 5 and the second positioning friction block 6 that correspond to each other, it can be achieved that the fixed die frame 2 and the movable die frame 1 will not deviate when the die is closed.

[0021] Specifically, during the use of the die-casting mold, the fixed mold frame 2 and the movable mold frame 1 are in the upper and lower mold state to mold the product in the mold cavity. This process will generate relatively large forces, so the interaction between the first positioning friction block 5 and the second positioning friction block 6 can achieve accurate positioning of the fixed mold frame 2 and the movable mold frame 1 without offset.

[0022] like Figure 2 and 3 As shown, the shape of the positioning boss 8 and the positioning recess 7 can be rectangular, fan-shaped or other shapes, which can realize the positioning of the fixed mold frame 2 and the movable mold frame 1 in the horizontal direction, and the side walls of the positioning boss 8 and the positioning recess 7 are set as inclined surfaces to avoid collision between the fixed mold frame 2 and the movable mold frame 1.

[0023] At the same time, the positioning boss 8 and the positioning recess 7 have two edge side walls arranged at right angles, and the first positioning friction block 5 and the second positioning friction block 6 are respectively embedded and installed in the corresponding edge side walls to meet the requirements of multi-directional positioning.

[0024] In this embodiment, if Figure 1 As shown, the fixed mold frame 2 is provided with a guide column 3 at a position located inside the positioning boss 8, and the movable mold frame 1 is provided with a guide hole 4 at a position located inside the positioning inner recess 7. When the fixed mold frame 2 and the movable mold frame 1 are molded together, the guide column 3 is inserted into the corresponding guide hole 4, and the first positioning friction block 5 and the second positioning friction block 6 contact each other so that the guide column 3 and the guide hole 4 will not have a single-sided friction problem when cooperating with each other.

[0025] In this embodiment, if Figure 4 and 6As shown, the first positioning friction block 5 and the second positioning friction block 6 are both provided with inclined surfaces 9 on the opposite side walls, so that when the fixed mold frame 2 and the movable mold frame 1 are molded together, the first positioning friction block 5 and the second positioning friction block 6 will not generate large friction when they contact. At the same time, the first positioning friction block 5 and the second positioning friction block 6 are both in the shape of long strips, and screw fixing holes 10 are provided at both ends thereof, so as to facilitate the installation and fixing of the first positioning friction block 5 and the second positioning friction block 6.

[0026] In this embodiment, if Figure 4 As shown, when the fixed mold frame 2 and the movable mold frame 1 are molded together, the position of the second positioning friction block 6 is higher than the position of the first positioning friction block 5, so that the second positioning friction block 6 and the first positioning friction block 5 can be staggered to improve the positioning effect.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A die-casting mold precision positioning structure, comprising: A fixed mold frame (2) and a movable mold frame (1) are arranged up and down, characterized in that positioning bosses (8) are arranged at the top corners of the lower end surface of the fixed mold frame (2), and a positioning recess (7) matching the positioning boss (8) is arranged on the upper end surface of the movable mold frame (1), at least one first positioning friction block (5) is embedded in the edge of the positioning boss (8) matching the positioning recess (7), and at least one second positioning friction block (6) is embedded in the edge of the positioning recess (7) matching the positioning boss (8), and when the fixed mold frame (2) and the movable mold frame (1) are molded together, the first positioning friction block (5) and the second positioning friction block (6) whose positions are matched are in contact with each other.

2. The die-casting mold clamping precision positioning structure according to claim 1, characterized in that: A guide column (3) is provided at a position located inside the positioning boss (8) on the fixed mold frame (2), and a guide hole (4) is provided at a position located inside the positioning inner recess (7) on the movable mold frame (1). When the fixed mold frame (2) and the movable mold frame (1) are molded together, the guide column (3) is inserted into the corresponding guide hole (4).

3. The die-casting mold clamping precision positioning structure according to claim 1, characterized in that: The first positioning friction block (5) and the second positioning friction block (6) are both provided with inclined surfaces (9) on their opposite side walls.

4. The die-casting mold clamping precision positioning structure according to claim 1, characterized in that: The first positioning friction block (5) and the second positioning friction block (6) are both in the shape of long strips, and both ends of the blocks are provided with screw fixing holes (10).

5. The die-casting mold clamping precision positioning structure according to claim 1, characterized in that: When the fixed mold frame (2) and the movable mold frame (1) are molded together, the position of the second positioning friction block (6) is higher than the position of the first positioning friction block (5).

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