Forming die positioning device

Abstract

The utility model relates to the technical field of molds, in particular to a forming mold positioning device which comprises a lower mold, an upper mold, a supporting frame and an upper mold plate arranged on the inner side of the supporting frame in a vertical sliding mode through a first linear driving piece, and a positioning mechanism used for locking in the mold closing process is arranged on the outer side of the lower mold and the outer side of the upper mold. The positioning mechanism comprises a plurality of movable rods, two positioning rods fixed to the sides, close to the lower mold and the upper mold, of the movable rods and a driving module for driving the movable rods to synchronously move towards the sides close to or away from the lower mold and the upper mold, and the two positioning rods on the movable rods correspond to the lower mold and the upper mold correspondingly. The side walls of the lower mold and the upper mold are provided with the positioning holes matched with the positioning rods, when the lower mold and the upper mold are closed, the positioning rods are inserted into the positioning holes to be locked, the situation that the product quality is affected due to the fact that the lower mold and the upper mold are not tightly attached in the casting process is avoided, and meanwhile operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is the positioning device of forming die. BACKGROUND

[0002] Spheroidal graphite cast iron is obtained by spheroidizing and inoculation, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thereby obtaining higher strength than carbon steel, can withstand larger rolling load, and its comprehensive performance is close to steel, which has been successfully used for casting some parts with complex stress, high strength, toughness and wear resistance, and is widely used in steel, plate, belt and pipe mill.

[0003] The upper and lower molds may not be tightly connected due to mold design problems or material problems during mold closing, which causes problems such as scrap edge of the formed workpiece, and in the prior art, a fixing device is arranged on each side wall of the mold to lock the upper and lower molds during mold closing, which is not only more complicated to operate, but also increases equipment investment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a positioning device for a forming die to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a positioning device for a forming die, comprising a lower mold, an upper mold, a support frame, and an upper mold plate arranged on the inner side of the support frame and sliding up and down through a first linear drive member, the lower mold is installed on the inner side below the support frame, the upper mold is fixed to the bottom end of the upper mold plate, the outer sides of the lower mold and the upper mold are provided with a positioning mechanism for locking during mold closing, and the positioning mechanism comprises a plurality of movable rods arranged in parallel on the outer sides of the side walls of the upper mold, two positioning rods fixed to the movable rods near the lower mold and the upper mold, and a drive module driving the plurality of movable rods to move synchronously towards or away from the side of the lower mold and the upper mold, the two positioning rods on the movable rods correspond to the lower mold and the upper mold respectively, and the side walls of the lower mold and the upper mold are each provided with a positioning hole matched with the positioning rod.

[0006] Further, a fixed rod is vertically arranged in the middle of the top end of the upper mold plate, the first linear drive member is installed at the top end of the support frame, and the output end of the first linear drive member extends to the inner side of the support frame and is fixedly connected with the fixed rod.

[0007] Further, the driving module comprises a rotating disc rotatably installed at the center of the top end of the upper mold plate and a plurality of connecting rods corresponding to the movable rods, one end of the connecting rod is rotatably connected with the edge of the rotating disc, and the other end of the connecting rod is rotatably connected with the top end of the movable rod through a pin shaft, the edge of the upper mold plate is provided with a limiting sliding hole for limiting the radial movement of the pin shaft along the rotating disc, and the side wall of the upper mold is provided with a second straight line driving element for driving any movable rod to move back and forth along the radial direction of the rotating disc.

[0008] Further, the side wall of the upper mold is provided with a plurality of limiting rods for guiding and limiting the movable rods, so that the positioning rods are always located on the side facing the lower mold and the upper mold.

[0009] Further, the end of the positioning rod is provided with a guide portion which gradually reduces in size from one end close to the movable rod to the other end.

[0010] Further, the support frame comprises a base and a top plate which are parallel to each other, and the base and the top plate are connected and fixed through a plurality of guide rods, and the upper mold plate is slidably connected with the guide rods.

[0011] Further, the top end of the base is provided with a plurality of pads, and the pads are fixedly connected with the bottom end of the lower mold through bolts.

[0012] Compared with the prior art, the beneficial effects of the present application are that: the positioning device of the forming mold comprises a plurality of movable rods, positioning rods, positioning holes and a driving module for driving the movable rods to move back and forth towards the side close to or away from the lower mold and the upper mold, when the lower mold and the upper mold are combined, the positioning rods are inserted into the positioning holes for locking, avoiding the influence of the close fit of the lower mold and the upper mold on the product quality during casting, and the operation is convenient and fast, the structure is simple and practical, and the equipment investment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is a sectional structure schematic diagram of the utility model;

[0015] Figure 3 It is a three-dimensional structure schematic diagram of the upper mold of the utility model;

[0016] Figure 4 It is a top view structure schematic diagram of the upper mold plate of the utility model.

[0017] In the diagram: 1. Lower mold; 2. Upper mold; 3. Support frame; 301. Base; 302. Top plate; 303. Guide rod; 4. Upper template; 401. Fixing rod; 402. Limiting sliding hole; 5. First linear drive component; 6. Positioning mechanism; 601. Movable rod; 602. Positioning rod; 6021. Guide part; 603. Positioning hole; 604. Second linear drive component; 605. Rotary disk; 606. Connecting rod; 607. Limiting rod; 7. Pad block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. The term "comprising" and any variations thereof in the specification, claims, and accompanying drawings of the present utility model are intended to cover non-exclusive inclusion.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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.

[0020] Please see Figures 1-4This utility model provides an embodiment of a molding die positioning device, including a lower die 1, an upper die 2, a support frame 3, and an upper template 4 that is slidably disposed inside the support frame 3 via a first linear drive 5. The lower die 1 is installed on the lower inner side of the support frame 3, and the upper die 2 is fixed to the bottom end of the upper template 4. Specifically, the support frame 3 includes a base 301 and a top plate 302 that are parallel to each other. The base 301 and the top plate 302 are connected and fixedly connected by four guide rods 303. The upper template 4 is slidably connected to the guide rods 303. A fixing rod 401 is vertically disposed in the middle of the top of the upper template 4. The first linear drive 5 can be a cylinder or a hydraulic cylinder, etc. The first linear drive 5 is installed on the top of the support frame 3, and the output end of the first linear drive 5 extends to the inner side of the support frame 3 and is fixedly connected to the fixing rod 401. Through the extension and retraction of the first linear drive 5, the upper template 4 is driven to move up and down on the guide rod 303, which improves the stability and accuracy of the movement of the upper die 2, avoids misalignment during mold closing, and improves the product molding quality.

[0021] In this embodiment, four pads 7 are provided at the top of the base 301 and are located at the four corners of the bottom of the lower mold 1. The pads 7 are fixedly connected to the bottom of the lower mold 1 by bolts, which can reserve a gap between the bottom of the lower mold 1 and the base 301 to facilitate air flow and thus facilitate the cooling and forming of the mold.

[0022] The lower mold 1 and the upper mold 2 are provided with a positioning mechanism 6 for locking during mold closing. The positioning mechanism 6 includes several movable rods 601 arranged parallel to each side wall of the upper mold 2, two positioning rods 602 fixed on the side of the movable rods 601 near the lower mold 1 and the upper mold 2, and a drive module that drives the movable rods 601 to move synchronously towards or away from the lower mold 1 and the upper mold 2. The two positioning rods 602 on the movable rods 601 correspond to the lower mold 1 and the upper mold 2 respectively. The side walls of the lower mold 1 and the upper mold 2 are provided with positioning holes 603 that are adapted to the positioning rods 602. When the mold is closed, the two positioning rods 602 on each side are inserted into the two positioning holes 603 respectively, so that the lower mold 1 and the upper mold 2 fit more tightly and at the same time play a locking role to prevent the mold from deforming during the molding process. The movable rods 601 and the positioning rods 602 are set on the upper mold 2 so that they can rise with the upper mold 2 during mold opening to avoid affecting the material output.

[0023] In this embodiment, the driving module includes a rotating disk 605 rotatably mounted at the center of the top of the upper mold plate 4 and several connecting rods 606 corresponding one-to-one with the movable rods 601. Both the lower mold 1 and the upper mold 2 have square cross-sections, therefore the four movable rods 601 are of the same length. When the length and width of the lower mold 1 and the upper mold 2 are different, the length of the connecting rods 606 can be adjusted accordingly. One end of the connecting rod 606 is rotatably connected to the edge of the rotating disk 605, and the other end of the connecting rod 606 is rotatably connected to the top of the movable rod 601 via a pin. The length and width of the upper mold plate 4 are both greater than the length and width of the upper mold 2. A limiting sliding hole 402 is provided at the edge of the upper mold plate 4 to restrict the pin from moving radially along the rotating disk 605. A mechanism is provided on the side wall of the upper mold 2 to drive any one of the movable rods 601 along the radial direction of the rotating disk 605. The second linear drive 604, which moves back and forth, has a fixed rod 401 that is cylindrical in shape. The rotating disk 605 is rotatably mounted on the outside of the fixed rod 401 via bearings. The second linear drive 604 is a threaded rod that is rotatably connected to the outer wall of the upper mold 2. The threaded rod is threadedly connected to the movable rod 601. By rotating, the movable rod 601 moves closer to or further away from the lower mold 1 and the upper mold 2. Alternatively, the second linear drive 604 can be configured as a cylinder, an electric push rod, etc. When any movable rod 601 moves horizontally, the rotating disk 605 is pushed to rotate via the connecting rod 606, which in turn drives the other movable rod 601 to move synchronously, locking the four side walls of the lower mold 1 and the upper mold 2 simultaneously. This makes the operation convenient and quick, while reducing equipment investment.

[0024] Furthermore, the side wall of the upper mold 2 is provided with several limiting rods 607 to guide and limit the movable rods 601, so that the positioning rod 602 is always located on the side facing the lower mold 1 and the upper mold 2. Specifically, the limiting rod 607 is vertically fixed on the outer side wall of the upper mold 2, and the movable rod 601 is slidably connected to the limiting rod 607, so that the movable rod 601 slides back and forth along the length direction of the limiting rod 607, so as to avoid the movable rod 601 rotating during use, which would cause the positioning rod 602 to be misaligned with the positioning hole 603.

[0025] Furthermore, the end of the positioning rod 602 is provided with a guide portion 6021 whose size gradually decreases from one end near the movable rod 601 to the other end, so as to facilitate the insertion of the positioning rod 602 into the positioning hole 603.

[0026] Working principle: The extension and retraction of the first linear drive 5 pushes the upper mold plate 4 to slide up and down on the guide rod 303, thereby driving the upper mold 2 to move up and down to close and separate with the lower mold 1. When the mold is closed, the bottom end of the upper mold 2 abuts against the top end of the lower mold 1. Then, the second linear drive 604 pushes the movable rod 601 connected to it to move closer to the lower mold 1 and the upper mold 2 until the two positioning rods 602 are inserted into the positioning holes 603 on the side walls of the lower mold 1 and the upper mold 2 respectively. The movable rod 601 drives the rotating disk 605 to rotate through the connecting rod 606, thereby driving the other movable rods 601 to move the same distance, locking the side walls of the lower mold 1 and the upper mold 2, making the lower mold 1 and the upper mold 2 fit more tightly, and keeping them relatively fixed during casting, thus improving the product molding quality.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A molding die positioning device, comprising a lower die (1), an upper die (2), a support frame (3), and an upper template (4) slidably disposed inside the support frame (3) via a first linear drive member (5), wherein the lower die (1) is installed below the inner side of the support frame (3), and the upper die (2) is fixed to the bottom end of the upper template (4), characterized in that: The lower mold (1) and the upper mold (2) are provided with a positioning mechanism (6) for locking when the mold is closed. The positioning mechanism (6) includes several movable rods (601) arranged parallel to each side wall of the upper mold (2), two positioning rods (602) fixed on the side of the movable rods (601) near the lower mold (1) and the upper mold (2), and a driving module that drives the several movable rods (601) to move synchronously towards or away from the lower mold (1) and the upper mold (2). The two positioning rods (602) on the movable rods (601) correspond to the lower mold (1) and the upper mold (2) respectively. The side walls of the lower mold (1) and the upper mold (2) are provided with positioning holes (603) that are adapted to the positioning rods (602).

2. The molding die positioning device according to claim 1, characterized in that: A fixing rod (401) is vertically arranged in the middle of the top of the upper template (4). The first linear drive (5) is installed at the top of the support frame (3), and the output end of the first linear drive (5) extends to the inner side of the support frame (3) and is fixedly connected to the fixing rod (401).

3. The molding die positioning device according to claim 1, characterized in that: The drive module includes a rotating disk (605) rotatably mounted at the center of the top of the upper template (4) and several connecting rods (606) corresponding one-to-one with the movable rods (601). One end of the connecting rod (606) is rotatably connected to the edge of the rotating disk (605), and the other end of the connecting rod (606) is rotatably connected to the top of the movable rod (601) by a pin. The edge of the upper template (4) is provided with a limiting sliding hole (402) to restrict the pin from moving radially along the rotating disk (605). The side wall of the upper mold (2) is provided with a second linear drive (604) that drives any one of the movable rods (601) to move back and forth radially along the rotating disk (605).

4. The molding die positioning device according to claim 3, characterized in that: The upper mold (2) has several pairs of movable rods (601) on its side wall, which are used to guide and limit the positioning rods (607) so that the positioning rod (602) is always located on the side facing the lower mold (1) and the upper mold (2).

5. The molding die positioning device according to claim 3, characterized in that: The end of the positioning rod (602) is provided with a guide portion (6021) whose size gradually decreases from one end near the movable rod (601) to the other end.

6. The molding die positioning device according to claim 1, characterized in that: The support frame (3) includes a base (301) and a top plate (302) that are parallel to each other. The base (301) and the top plate (302) are connected and fixed by a number of guide rods (303). The upper template (4) is slidably connected to the guide rods (303).

7. The molding die positioning device according to claim 6, characterized in that: The top of the base (301) is provided with several pads (7), and the pads (7) are fixedly connected to the bottom of the lower mold (1) by bolts.

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