Quick clamping and fastening structure of die-casting die

Abstract

The utility model discloses a quick clamping and fastening structure of a die-casting mould, which relates to the technical field of die-casting moulds and comprises an upper mould and an upper inner mould, a lower mould is arranged below the upper mould serving as one of die-casting mould main bodies, and the length and the width of the upper mould are the same as those of the lower mould; the upper inner die on the inner side of the upper die is embedded in the middle of the bottom of the upper die; the lower inner die is embedded in the middle of the top of the lower die; during use, under the pushing of external force, the upper die gradually descends to be in butt joint with the lower die until the positioning columns at the four corners of the upper die are inserted into the positioning holes at the four corners of the lower die, at the moment, the upper die is attached to the lower die, and the upper inner die and the lower inner die are also in butt joint to form a cavity; and a gap generated after the upper inner die and the lower inner die are in butt joint and a gap generated after the upper die and the lower die are in butt joint are not in the same horizontal line any more, liquid metal in the cavity can be effectively prevented from leaking through the gap, and it is guaranteed that die-casting work can be normally conducted.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of die casting moulds, in particular to a quick clamping and fastening structure of a die casting mould. Background Art

[0002] The die-casting forging process is a process that is completed on a dedicated die-casting forging machine. The molten metal is first cast and filled into the mold cavity at a low or high speed. The mold has a movable cavity surface, which is pressurized and forged as the molten metal cools, eliminating the shrinkage defects of the blank and making the internal structure of the blank reach the broken grains in the forged state.

[0003] Chinese patent announcement number CN 213968933 U discloses a die-casting mold structure, including a die-casting mold as a whole, the die-casting mold as a whole includes a support plate, an upper mold plate, a lower mold plate, and a base, the upper surface of the support plate is symmetrically provided with a circular groove, a pneumatic cylinder is arranged inside the circular groove, a pin hole is arranged on the bottom surface of the circular groove, the pin hole is arranged through the upper mold plate and the support plate, one end of the pneumatic cylinder is fixedly connected with a pin, the outer side wall of the pin is symmetrically provided with a first gear, the inner side wall of the pin hole is provided with a sliding cavity, a sealing device is arranged inside the sliding cavity, the sealing device includes a circular arc block, the inner side wall of the circular arc block is provided with a second gear, and a sliding groove is arranged in the middle position of the circular arc block;

[0004] The above-mentioned die-casting mold uses a cylinder to control the docking and merging of the upper mold plate and the lower mold plate, and then the die-casting work is carried out; however, the die-casting work requires pouring high-temperature molten metal into the cavity of the mold, so it is necessary to require that the cavity formed after the upper mold and the lower mold are docked must have good sealing properties, and the upper mold and the lower mold must not be displaced during the die-casting work. The cavity of the above-mentioned die-casting mold is directly formed by the docking of the upper mold plate and the lower mold plate, but the upper mold plate and the lower mold plate have no sealing structure, and a gap is bound to be generated after docking. When the gap is too large, the high-temperature molten metal will leak, even if the gap is small, the high-temperature molten metal will remain in the gap, resulting in a large amount of excess material on the edge of the finished product after die-casting, which not only causes difficulties in subsequent processing, but also causes waste of raw materials. Utility Model Content

[0005] The purpose of the utility model is to provide a quick snap-fitting and fastening structure for a die-casting mold, in which an upper inner mold and a lower inner mold are respectively embedded in the upper mold and the lower mold, and the generation of gaps can be minimized through the cooperation of the outer mold and the inner mold. At the same time, the upper mold and the lower mold are fixedly connected by a snap-fit ​​structure, which increases the stability of the connection between the upper mold and the lower mold, so as to solve the technical problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A quick clamping and fastening structure of a die-casting mold comprises an upper mold and an upper inner mold. A lower mold is arranged below the upper mold as one of the main bodies of the die-casting mold, and the length and width of the upper mold and the lower mold are the same.

[0008] The upper inner mold located on the inner side of the upper mold is embedded in the middle of the bottom of the upper mold, and the lower inner mold is embedded in the middle of the top of the lower mold;

[0009] The bottoms of both ends of the upper mold are welded with bumps, the bumps are in an inverted T shape, and the bottoms of both ends of the bumps are provided with inclined surfaces;

[0010] Both ends of the lower die are provided with grooves, and the two protrusions correspond to the positions of the two grooves of the lower die respectively; both sides of the two protrusions are provided with clamping blocks; the tops of multiple clamping blocks close to one end of the protrusion are provided with inclined surfaces; multiple clamping blocks are provided with springs at one end away from the protrusion, one end of the spring is fixedly connected to the lower die, and the other end is fixedly connected to the clamping block; a shifting block is welded on one side of multiple clamping blocks adjacent to the spring.

[0011] As a further technical solution of the utility model, the multiple blocks and the multiple springs are respectively located in the grooves at both ends of the lower mold; a guide column is welded in the middle of one end of the multiple blocks away from the protrusion, and the guide column is located on the inner side of the spring; inner sides of both ends of the multiple grooves of the lower mold are provided with inner holes, and the positions of the multiple inner holes correspond to the positions of the multiple guide columns.

[0012] As a further technical solution of the utility model, baffles are provided on the outer side of the groove of the lower mold, and the four corners of the multiple baffles are fixedly connected to the lower mold by bolts; the area of ​​the multiple baffles is larger than the area of ​​the groove; through grooves for the movement of multiple shift blocks are provided in the middle of the multiple baffles, and electromagnets are fixedly installed on the outer surface of the baffles at both ends of the through grooves, and the shift blocks are adsorbed when the electromagnets are energized.

[0013] As a further technical solution of the utility model, both ends of the bottom of the lower mold are fixedly connected to the support member, the bottom of the support member is fixedly connected to the base by bolts, a groove is provided in the middle of the support member, and a top material assembly is provided in the groove of the support member.

[0014] As a further technical solution of the utility model, a first drainage groove is embedded on one side of the upper mold, a drainage nozzle is provided at the bottom of the first drainage groove, and the first drainage groove is located on one side of the upper inner mold.

[0015] As a further technical solution of the utility model, the four bottom corners of the upper mold are fixedly connected with positioning columns; the four top corners of the lower mold are provided with positioning holes, and the positions of the multiple positioning holes correspond to the positions of the multiple positioning columns.

[0016] As a further technical solution of the utility model, a drainage column is fixedly connected to one side of the top of the lower mold, and the position of the drainage column corresponds to the position of the first drainage groove; a second drainage groove is arranged on the drainage column, and the second drainage groove extends into multiple cavities of the lower inner mold.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. When the utility model is used, the upper die gradually descends and docks with the lower die under the push of external force until the positioning columns at the four corners of the upper die are inserted into the positioning holes at the four corners of the lower die. At this time, the upper die fits the lower die, and the upper inner die and the lower inner die also dock to form a cavity. The gap generated after the upper inner die and the lower inner die dock is no longer on the same horizontal line as the gap generated after the upper die and the lower die dock, which can effectively prevent the liquid metal in the cavity from leaking through the gap, ensuring that the die casting work can be carried out normally.

[0019] 2. In the utility model, during the docking process between the upper die and the lower die, the protrusions at both ends of the upper die descend synchronously until the protrusions contact the clamping blocks, and then the protrusions continue to descend. Under the pressure of the protrusions, the clamping blocks are pushed to move away from the protrusions, and sufficient space is formed for the protrusions to descend until the protrusions descend to the bottom of the clamping blocks. At this time, the clamping blocks are reset under the action of the spring force, and the protrusions are fixed under the clamping blocks; the protrusions cooperate with the clamping blocks to strengthen the stability of the connection between the upper die and the lower die, prevent the upper die and the lower die from displacement, and ensure that the gap between the upper die and the lower die will not become larger;

[0020] 3. In the utility model, the spring can control the card block to move laterally, so that the card block can normally cooperate with the protrusion to clamp the upper mold and the lower mold; the guide column is located on the inner side of the spring, and when the spring contracts due to the pressure of the card block, the guide column can prevent the spring from bending during contraction or extension, thereby ensuring the normal use of the spring; after the die-casting is completed, the staff manually shifts a plurality of shift blocks, so that the plurality of shift blocks respectively drive the plurality of card blocks to move away from the protrusion, so that the plurality of protrusions no longer block the protrusion, and at this time the upper mold can normally drive the protrusion away from the lower mold, so that the staff can normally take out the object in the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0022] Figure 2 This utility model Figure 1 Top view of the .

[0023] Figure 3 This utility model Figure 2 AA section view.

[0024] Figure 4 This utility model Figure 1 Schematic diagram of part of the structure.

[0025] Figure 5 This utility model Figure 4 main view.

[0026] Figure 6 This utility model Figure 4 Schematic diagram of part of the structure.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the upper mold in the utility model.

[0028] Figure 8 This utility model Figure 7 Bottom view of .

[0029] Fig. 9 This utility model Figure 4 A partial enlarged view of .

[0030] In the figure: 1-upper mold, 2-lower mold, 3-support member, 4-base, 5-upper inner mold, 6-lower inner mold, 7-first drainage groove, 8-baffle, 9-bump, 10-block, 11-spring, 12-guide column, 13-inner hole, 14-positioning hole, 15-drainage column, 16-second drainage groove, 17-positioning column, 18-drainage nozzle, 19-shift block, 20-electromagnet. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-9 In the embodiment of the utility model, a quick clamping and fastening structure of a die-casting mold includes an upper mold 1 and an upper inner mold 5. A lower mold 2 is provided below the upper mold 1 as one of the main bodies of the die-casting mold, and the length and width of the upper mold 1 and the lower mold 2 are the same;

[0033] The upper inner mold 5 located inside the upper mold 1 is embedded in the middle of the bottom of the upper mold 1, and the lower inner mold 6 is embedded in the middle of the top of the lower mold 2;

[0034] The bottoms of both ends of the upper mold 1 are welded with bumps 9, the bumps 9 are in an inverted T shape, and the bottoms of both ends of the bumps 9 are provided with inclined surfaces;

[0035] Both ends of the lower die 2 are provided with grooves, and the two protrusions 9 correspond to the positions of the two grooves of the lower die 2 respectively; both sides of the two protrusions 9 are provided with clamping blocks 10; the tops of the multiple clamping blocks 10 close to the protrusions 9 are provided with inclined surfaces; the ends of the multiple clamping blocks 10 away from the protrusions 9 are provided with springs 11, one end of the spring 11 is fixedly connected to the lower die 2, and the other end is fixedly connected to the clamping block 10; the sides of the multiple clamping blocks 10 adjacent to the springs 11 are welded with shifting blocks 19;

[0036] The multiple blocks 10 and the multiple springs 11 are respectively located in the grooves at both ends of the lower mold 2; a guide column 12 is welded in the middle of one end of the multiple blocks 10 away from the protrusion 9, and the guide column 12 is located on the inner side of the spring 11; inner holes 13 are provided on the inner sides of both ends of the multiple grooves of the lower mold 2, and the positions of the multiple inner holes 13 correspond to the positions of the multiple guide columns 12.

[0037] By adopting the above technical solution, when in use, under the push of external force, the upper mold 1 gradually descends and docks with the lower mold 2 until the positioning columns 17 at the four corners of the upper mold 1 are inserted into the positioning holes 14 at the four corners of the lower mold 2. At this time, the upper mold 1 fits with the lower mold 2, and the upper inner mold 5 and the lower inner mold 6 are also docked to form a cavity. The gap generated by the docking of the upper inner mold 5 and the lower inner mold 6 is no longer on the same horizontal line as the gap generated by the docking of the upper mold 1 and the lower mold 2, which can effectively prevent the liquid metal in the cavity from leaking through the gap, ensuring that the die-casting work can be carried out normally.

[0038] In this embodiment, baffles 8 are provided on the outer side of the groove of the lower mold 2, and the four corners of the baffles 8 are fixedly connected to the lower mold 2 by bolts; the area of ​​the baffles 8 is larger than the area of ​​the groove, and the middle of the baffles 8 is provided with through grooves for the movement of the plurality of shifting blocks 19, and the two ends of the through grooves are located on the outer surface of the baffles 8 and fixedly installed with electromagnets 20, and the electromagnets 20 adsorb the shifting blocks 19 after being energized;

[0039] Both ends of the bottom of the lower mold 2 are fixedly connected to the support member 3, and the bottom of the support member 3 is fixedly connected to the base 4 by bolts. A groove is provided in the middle of the support member 3, and a material ejection assembly is provided in the groove of the support member 3;

[0040] A first drainage groove 7 is embedded on one side of the upper mold 1 , a drainage nozzle 18 is provided at the bottom of the first drainage groove 7 , and the first drainage groove 7 is located on one side of the upper inner mold 5 .

[0041] By adopting the above technical scheme, during the docking process between the upper mold 1 and the lower mold 2, the protrusions 9 located at the two ends of the upper mold 1 descend synchronously until the protrusions 9 contact the blocking blocks 10, and then the protrusions 9 continue to descend. Under the pressure of the protrusions 9, the blocking blocks 10 are pushed to move away from the protrusions 9, and sufficient space is formed for the protrusions 9 to descend until the protrusions 9 descend to the bottom of the blocking blocks 10. At this time, the blocking blocks 10 are reset under the action of the elastic force of the springs 11, and the protrusions 9 are fixed under the blocking blocks 10; the protrusions 9 cooperate with the blocking blocks 10 to enhance the stability of the connection between the upper mold 1 and the lower mold 2, prevent the upper mold 1 and the lower mold 2 from displacement, and ensure that the gap between the upper mold 1 and the lower mold 2 will never increase.

[0042] In this embodiment, the four corners of the bottom of the upper mold 1 are fixedly connected with positioning columns 17; the four corners of the top of the lower mold 2 are provided with positioning holes 14, and the positions of the plurality of positioning holes 14 correspond to the positions of the plurality of positioning columns 17;

[0043] A drainage column 15 is fixedly connected to one side of the top of the lower mold 2 , and the position of the drainage column 15 corresponds to the position of the first drainage groove 7 ; a second drainage groove 16 is arranged on the drainage column 15 , and the second drainage groove 16 extends into multiple cavities of the lower inner mold 6 .

[0044] By adopting the above technical solution, the spring 11 can control the block 10 to move laterally, so that the block 10 can normally cooperate with the protrusion 9 to clamp the upper mold 1 and the lower mold 2; the guide column 12 is located on the inner side of the spring 11. When the spring 11 is contracted by the pressure of the block 10, the guide column 12 can prevent the spring 11 from bending during the contraction or extension process, thereby ensuring the normal use of the spring 11; after the die-casting is completed, the staff manually shifts a plurality of shift blocks 19, so that the plurality of shift blocks 19 respectively drive the plurality of block 10 to move away from the protrusion 9, so that the plurality of protrusions 9 no longer block the protrusion 9. At this time, the upper mold 1 can normally drive the protrusion 9 away from the lower mold 2, so that the staff can normally take out the object in the cavity.

[0045] The working principle of the utility model is as follows: when in use, under the push of external force, the upper die 1 gradually descends and docks with the lower die 2, until the positioning columns 17 at the four corners of the upper die 1 are inserted into the positioning holes 14 at the four corners of the lower die 2, at which time the upper die 1 fits with the lower die 2, the upper inner die 5 and the lower inner die 6 also dock and form a cavity, and the gap generated after the upper inner die 5 and the lower inner die 6 dock is no longer on the same horizontal line as the gap generated after the upper die 1 and the lower die 2 dock, which can effectively prevent the liquid metal in the cavity from leaking through the gap, ensuring that the die casting work can be carried out normally;

[0046] During the docking process between the upper die 1 and the lower die 2, the protrusions 9 at both ends of the upper die 1 are synchronously lowered until the protrusions 9 contact the clamping blocks 10, and then the protrusions 9 continue to descend. Under the pressure of the protrusions 9, the clamping blocks 10 are pushed to move away from the protrusions 9, and sufficient space is formed for the protrusions 9 to descend until the protrusions 9 descend to the bottom of the clamping blocks 10. At this time, the clamping blocks 10 are reset under the elastic force of the springs 11, and the protrusions 9 are fixed under the clamping blocks 10; the protrusions 9 cooperate with the clamping blocks 10 to strengthen the stability of the connection between the upper die 1 and the lower die 2, prevent the upper die 1 and the lower die 2 from displacement, and ensure that the gap between the upper die 1 and the lower die 2 will not always increase;

[0047] The spring 11 can control the block 10 to move laterally, so that the block 10 can normally cooperate with the protrusion 9 to clamp the upper mold 1 and the lower mold 2; the guide column 12 is located on the inner side of the spring 11. When the spring 11 is compressed by the pressure of the block 10, the guide column 12 can prevent the spring 11 from bending during the contraction or extension process, thereby ensuring the normal use of the spring 11; after the die-casting is completed, the staff manually shifts a plurality of shift blocks 19, so that the plurality of shift blocks 19 respectively drive the plurality of block 10 to move away from the protrusion 9, so that the plurality of protrusions 9 no longer block the protrusion 9. At this time, the upper mold 1 can normally drive the protrusion 9 away from the lower mold 2, so that the staff can normally take out the objects in the cavity.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A quick-clamping and fastening structure for a die-casting mold, characterized in that: include An upper mold (1) is provided below the upper mold (1) as one of the main bodies of the die-casting mold, and a lower mold (2) is provided, and the upper mold (1) and the lower mold (2) have the same length and width; An upper inner mold (5) located inside the upper mold (1) is embedded in the middle of the bottom of the upper mold (1), and a lower inner mold (6) is embedded in the middle of the top of the lower mold (2); The bottoms of both ends of the upper mold (1) are welded with convex blocks (9), the convex blocks (9) are in an inverted T-shape, and the bottoms of both ends of the convex blocks (9) are provided with inclined surfaces; The lower die (2) is provided with grooves at both ends, and the two protrusions (9) correspond to the positions of the two grooves of the lower die (2) respectively; a clamping block (10) is provided on both sides of the two protrusions (9); a plurality of clamping blocks (10) are provided with inclined surfaces at the tops of one end close to the protrusion (9); a plurality of clamping blocks (10) are provided with springs (11) at one end away from the protrusion (9), one end of the spring (11) is fixedly connected to the lower die (2), and the other end is fixedly connected to the clamping block (10); a shifting block (19) is welded on one side of the plurality of clamping blocks (10) adjacent to the spring (11).

2. The quick-engaging and fastening structure of the die-casting mold according to claim 1, characterized in that: The plurality of clamping blocks (10) and the plurality of springs (11) are respectively located in the grooves at both ends of the lower mold (2); a guide column (12) is welded in the middle of one end of the plurality of clamping blocks (10) away from the protrusion (9), and the guide column (12) is located on the inner side of the spring (11); inner holes (13) are provided on the inner sides of both ends of the plurality of grooves of the lower mold (2), and the positions of the plurality of inner holes (13) respectively correspond to the positions of the plurality of guide columns (12).

3. The quick-engaging and fastening structure of the die-casting mold according to claim 2, characterized in that: Baffles (8) are provided on the outer side of the groove of the lower mold (2), and the four corners of the multiple baffles (8) are fixedly connected to the lower mold (2) by bolts; the area of ​​the multiple baffles (8) is larger than the area of ​​the groove, and the middle of the multiple baffles (8) is provided with through grooves for multiple shifting blocks (19) to move, and the two ends of the through grooves are located on the outer surface of the baffles (8) and are fixedly installed with electromagnets (20), and the electromagnets (20) adsorb the shifting blocks (19) after being energized.

4. The quick-engaging and fastening structure of the die-casting mold according to claim 3, characterized in that: Both ends of the bottom of the lower mold (2) are fixedly connected to the support member (3), and the bottom of the support member (3) is fixedly connected to the base (4) through bolts. A groove is provided in the middle of the support member (3), and a material ejection assembly is provided in the groove of the support member (3).

5. The quick-engaging and fastening structure of the die-casting mold according to claim 4, characterized in that: A first drainage groove (7) is embedded on one side of the upper mold (1), a drainage nozzle (18) is provided at the bottom of the first drainage groove (7), and the first drainage groove (7) is located on one side of the upper inner mold (5).

6. The quick-engagement and fastening structure of the die-casting mold according to claim 5, characterized in that: The four bottom corners of the upper mold (1) are fixedly connected with positioning columns (17); the four top corners of the lower mold (2) are provided with positioning holes (14), and the positions of the plurality of positioning holes (14) correspond to the positions of the plurality of positioning columns (17).

7. The quick-engagement and fastening structure of the die-casting mold according to claim 6, characterized in that: A drainage column (15) is fixedly connected to one side of the top of the lower mold (2), and the position of the drainage column (15) corresponds to the position of the first drainage groove (7); a second drainage groove (16) is provided on the drainage column (15), and the second drainage groove (16) extends into multiple cavities of the lower inner mold (6).

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