Aluminum alloy low-pressure casting embedded insert upper die positioning and locking device

Abstract

The invention discloses an aluminum alloy low-pressure casting embedded insert upper die positioning and locking device, and relates to the technical field of motor end cover low-pressure casting, the structure of the aluminum alloy low-pressure casting embedded insert upper die positioning and locking device comprises a hoisting main body, the bottom of the hoisting main body is fixedly connected with an upper die body, the upper die body is sleeved with an insert body, and the back face of the hoisting main body is provided with heat dissipation holes; inserting assemblies are arranged on the two sides of the interior of the hoisting body, a containing groove is formed in the bottom of the hoisting body, and the heat dissipation holes communicate with the containing groove. According to the positioning and locking device for the aluminum alloy low-pressure casting embedded insert upper die, it is guaranteed that the insert body cannot be extruded and abraded while the good fixing effect on the insert body is achieved, the casting quality of a motor end cover is improved, the process complexity in the die production process is reduced, fixing of various different insert bodies is achieved, more process choices can be provided, and the production efficiency is improved. And the casting accuracy of the casting is improved.

Description

Technical Field

[0001] The invention relates to the technical field of low-pressure casting of motor end covers, in particular to an upper die positioning and locking device for an embedded insert of an aluminum alloy low-pressure casting. Background Art

[0002] With the development of new energy vehicles, the demand for new energy motor end covers is increasing. New energy motor end covers refer to the covers at both ends of the motor casing, which are generally divided into front cover and rear cover. The end covers are fixed to the base by screws or rivets, and support and protect the motor rotor. The motor end cover has a complex shape and structure, and there are many concave and convex structures designed on the end face to enhance heat dissipation and improve mechanical strength. In the past, the material of the motor end cover was mostly cast iron. With the demand for lightweight, cast iron parts are gradually replaced by aluminum alloys. At present, most aluminum alloy motor end covers are produced by low-pressure casting and then machining. The form of embedded inserts in the mold is more common in the field of casting molds. Among them, iron inserts (iron inserts or inserts containing iron components) are often used. In the fully automatic production process, the iron inserts on the product are automatically placed on the mold by a robot. At this time, if there is no suitable structure to position the iron inserts, there is a risk of the inserts falling off during the production process of the mold, so it is necessary to use an aluminum alloy low-pressure casting embedded insert upper mold positioning and locking device.

[0003] The existing upper die positioning and locking device for embedded inserts in aluminum alloy low-pressure casting usually uses a spring to tighten the insert to the surface of the upper die during casting. However, the spring may be too tight or too loose. When the spring is too tight, it is easy to wear the surface of the insert, reducing the production quality of the final casting. When the spring is too loose, the effect of fixing the insert is poor, and the insert is easy to fall off the upper die, causing the casting to be scrapped and the mold to be damaged. Therefore, a upper die positioning and locking device for embedded inserts in aluminum alloy low-pressure casting is needed to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an upper mold positioning and locking device for embedded inserts in aluminum alloy low-pressure casting, which solves the problem that the insert is usually fixed to the surface of the upper mold by using a spring to tighten during casting. However, the spring may be too tight or too loose. When the spring is too tight, it is easy to wear the surface of the insert, thereby reducing the production quality of the final casting. When the spring is too loose, the effect of fixing the insert is poor, and the insert is easy to fall off the upper mold, resulting in the problem of scrapping the casting and damaging the mold.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum alloy low-pressure casting embedded insert upper mold positioning and locking device, including a lifting body, the bottom of the lifting body is fixedly connected to the upper mold body, the outer sleeve of the upper mold body is provided with an insert body, and the back of the lifting body is provided with heat dissipation holes, through which the heat dissipation holes can dissipate the heat generated by the micro motor when it is working, reduce the impact of high heat on the original parts inside the device, and extend the service life of the device, plug-in components are arranged on both sides of the interior of the lifting body, and a receiving groove is arranged at the bottom of the lifting body, the heat dissipation holes and the receiving groove are interconnected, and the interior of the upper mold body is provided with A power component, wherein a fixing sleeve is fixedly connected to the inner sides of the upper mold body, a push rod is slidably connected to the inner side of the fixing sleeve, a first through hole is opened on both sides of the upper mold body, a second through hole is opened on both sides of the inner side of the insert body, slots are opened on both sides of the top of the insert body, the second through hole and the interior of the slot are interconnected, one end of the push rod passes through the first through hole and the second through hole in sequence and extends to the interior of the slot, the plug-in component includes a slide groove, the slide groove is opened on both sides of the bottom of the lifting body, an insert block is slidably connected to the inner side of the slide groove, a tension spring is elastically connected between the top of the insert block and the inner wall of the slide groove, and a card slot is opened on one side of the insert block.

[0008] In the conventional low-pressure casting, the insert body and the casting are cast separately and then assembled. In this case, the insert body and the casting may not fit together due to the size difference, or a large gap may appear when the insert body and the casting are fitted together, resulting in low quality of the final casting product. Alternatively, the existing method is to make a mold for the entire casting, that is, an integral casting mold with the insert body, which makes the mold manufacturing process more difficult. In the present invention, the insert body is hung upside down on the upper mold, and then the aluminum alloy molten metal is cast together with the insert body through low-pressure casting. After cooling and forming, the casting and the insert body are first demolded from the mold together, and then the insert body is ejected from the casting, so that the insert body and the casting are tightly connected, avoiding the presence of an interlayer between the insert body and the casting, making the insert positioning more accurate, and by casting the insert body separately and then casting it together with the casting, the complexity of the process during mold production is reduced, that is, the process is greatly optimized, and more process options can be provided.

[0009] Preferably, the bottom of the insert block is inserted into the interior of the slot, and one end of the push rod passes through the first through hole and the second through hole in sequence and extends to the interior of the slot to be engaged with the card slot.

[0010] Preferably, movable holes are opened on both sides of the lifting body, the movable holes and one side of the slide groove are interconnected, a push handle is fixedly connected to one side of the insert block, and one end of the push handle passes through the movable hole and extends to the outside of the lifting body.

[0011] When fixing the insert body on the surface of the upper mold body, insert the plug into the slot, and drive one end of the push rod to engage with the slot through the power component, thereby realizing the locking and fixation between the insert body and the upper mold body, avoiding the insert body from loosening when being cast together with the casting, improving the stability of the insert body and the upper mold body when locked, and when the casting needs to be demolded after cooling, the power component drives the push rod to move in the opposite direction, so that one end of the push rod is disengaged from the slot, and then the insert body can be disengaged from the upper mold body, and the operation is simple and convenient.

[0012] Preferably, the front and back sides of the insert block are fixedly connected to limit blocks, the inner surface of the slide slot is provided with a limit groove, and the limit block is slidably connected to the inside of the limit groove.

[0013] The arrangement of the limiting block and the limiting groove can prevent the insert block from escaping from the interior of the sliding groove, so that the movement trajectory of the insert block is more stable when in use.

[0014] Preferably, the height of the limiting groove is equal to the length of the plug-in block that is completely exposed, and the length of the plug-in block that is completely exposed is equal to the depth of the slot.

[0015] By setting the length of the block completely protruding to be equal to the depth of the slot, when the block is inserted into the slot, the top of the insert body can be kept flush with and fit exactly with the bottom of the lifting body, thereby avoiding quality problems of the aluminum alloy liquid during casting caused by a gap between the insert body and the lifting body. By setting the height of the limit slot to the length of the block completely protruding to be equal, the bottom of the block can be kept flush with the bottom of the lifting body when the block is pulled into the slide groove by the tension spring, making the overall appearance of the device more unified and more beautiful.

[0016] Preferably, the power assembly includes a mounting seat, the number of which is set to two, wherein a micro motor is fixedly mounted on one side of one of the mounting seats, a worm is fixedly connected to the output end of the micro motor, and one end of the worm is rotatably connected to the surface of the other mounting seat.

[0017] Preferably, a rotating rod is rotatably connected between the inner surface of the lifting body and the interior of the upper mold body, a worm gear is fixedly connected to the surface of the rotating rod, and the worm gear is meshingly connected to the worm.

[0018] Preferably, a gear is fixedly connected to the surface of the rotating rod, and a connecting plate is fixedly connected to one end of the top rod. The two connecting plates are symmetrically distributed around the center of the gear. Tooth grooves are opened on the surface of the connecting plate, and the surface of the gear is meshed and connected with the two tooth grooves.

[0019] The power assembly is used to make the push rods on both sides move relative to each other, so that the push rods on both sides inside the upper mold can be connected and disengaged from the card slots, thereby facilitating the locking and disengagement of the insert body and the upper mold body. The insert body and the upper mold body can be locked and disengaged as needed, and the operation is simple, convenient and quick.

[0020] Preferably, a positioning hole is provided at the top of the fixing sleeve, and a positioning block is fixedly connected to the top of the push rod, and the positioning block passes through the interior of the positioning hole and extends to the top side of the fixing sleeve. The arrangement of the positioning block and the positioning hole can ensure that the gear operates normally inside the tooth groove, prevent the gear from escaping from the tooth groove, and enable the push rod to be just neither loose nor tight in the interior of the slot, thereby reducing the occurrence of over-tightening or over-loosening between the push rod and the plug block, so that the push rod can be well engaged with the plug block without pressing against the plug block too tightly to wear the plug block.

[0021] (III) Beneficial effects

[0022] The present invention provides an upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloys. It has the following beneficial effects:

[0023] (I) The upper die positioning and locking device for the aluminum alloy low-pressure casting embedded insert can make the ejector rod just completely stuck in the inside of the slot through the arrangement of the positioning block and the positioning hole, and the ejector rod will not be stuck in the slot too tightly or too loosely, thereby ensuring a good fixing effect on the insert body without squeezing and wearing the insert body, thereby improving the casting quality of the motor end cover.

[0024] (ii) The upper mold positioning and locking device for the aluminum alloy low-pressure casting embedded insert realizes the locking and demolding between the insert body and the upper mold body through the clamping connection between the push rod and the clamping groove, so that the insert body can be fixed on the surface of the upper mold during low-pressure casting, so that the insert is in a more stable state during low-pressure casting, that is, the risk of the insert body falling or even shifting is reduced, thereby improving the quality of the casting during production.

[0025] (III) The upper mold positioning and locking device for the aluminum alloy low-pressure casting embedded insert is carried out by hanging the insert body upside down on the upper mold and then pouring the aluminum alloy molten metal together with the low-pressure casting insert body. This can make the insert body and the casting fit tightly, avoid the presence of an interlayer between the insert body and the casting, make the insert positioning more accurate, and reduce the complexity of the process during mold production by casting the insert body separately and then casting it together with the casting.

[0026] (iv) The upper mold positioning and locking device for the aluminum alloy low-pressure casting embedded insert can realize the disassembly and assembly between the insert body and the upper mold body through the clamping connection between the ejector rod and the clamping groove, so that the insert body can be replaced, and a variety of different insert bodies can be fixed, which can provide more process options.

[0027] (V) The upper mold positioning and locking device of the aluminum alloy low-pressure casting embedded insert sets the length of the insert completely exposed to be equal to the depth of the slot. When the insert is fully inserted into the slot, the top of the insert body is just flush with and fits exactly with the bottom of the lifting body, thereby avoiding the quality problem of aluminum alloy liquid entering the gap during pouring due to the gap between the insert body and the lifting body, thereby improving the accuracy of the casting during casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the overall front side of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the overall back side of the present invention;

[0030] Figure 3 It is a bottom view of the hoisting body of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure inside the upper mold body of the present invention;

[0032] Figure 5 is a schematic structural diagram of a first through hole of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the insert body of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the plug-in assembly of the present invention;

[0035] Figure 8 It is a side sectional view of the slideway of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the power assembly of the present invention;

[0037] Fig.10 It is a schematic diagram of the structure of the positioning hole and the positioning block of the present invention.

[0038] In the figure: 1. lifting body; 2. upper mold body; 3. insert body; 4. heat dissipation hole; 5. plug-in assembly; 51. slide groove; 52. plug-in block; 53. tension spring; 54. slot; 55. movable hole; 56. push handle; 57. limit block; 58. limit groove; 6. accommodating groove; 7. power assembly; 71. mounting seat; 72. micro motor; 73. worm; 74. rotating rod; 75. worm wheel; 76. gear; 77. connecting plate; 78. tooth groove; 79. positioning hole; 710. positioning block; 8. fixing sleeve; 9. ejector rod; 10. first through hole; 11. second through hole; 12. slot. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-10 The present invention provides a technical solution: a positioning and locking device for an upper mold of an aluminum alloy low-pressure casting embedded insert, the structure of which includes a lifting body 1, a top mold body 2 is fixedly connected to the bottom of the lifting body 1, an insert body 3 is sleeved on the outside of the top mold body 2, a heat dissipation hole 4 is opened on the back of the lifting body 1, plug-in components 5 are arranged on both sides of the inside of the lifting body 1, a receiving groove 6 is opened at the bottom of the lifting body 1, the heat dissipation hole 4 and the receiving groove 6 are interconnected, a power component 7 is arranged inside the upper mold body 2, a fixing sleeve 8 is fixedly connected to both sides of the inside of the upper mold body 2, a top rod 9 is slidably connected to the inside of the fixing sleeve 8, and an upper A first through hole 10 is opened on both sides of the mold body 2, a second through hole 11 is opened on both sides of the interior of the insert body 3, and slots 12 are opened on both sides of the top of the insert body 3. The second through hole 11 and the interior of the slot 12 are interconnected. One end of the push rod 9 passes through the first through hole 10 and the second through hole 11 in sequence and extends to the interior of the slot 12. The plug-in component 5 includes a slide groove 51, and the slide groove 51 is opened on both sides of the bottom of the lifting body 1. The interior of the slide groove 51 is slidably connected with an insert block 52, and a tension spring 53 is elastically connected between the top of the insert block 52 and the inner wall of the slide groove 51, and a card groove 54 is opened on one side of the insert block 52.

[0041] Specifically, when the aluminum alloy motor end cover is low-pressure cast, the insert body 3 is first fixed on the surface of the upper mold body 2, and then low-pressure casting is performed, and the cast end cover casting is taken out from the upper mold, and the insert body 3 is taken out from the casting together. Thereafter, the insert body 3 can be taken out of the casting and hung upside down on the surface of the upper mold body 2, which can make the casting gap between the casting and the insert body 3 smaller, and make the casting and the insert body 3 fit better, and the casting quality is higher. When casting the motor end cover, first press the push handle 56 downward to drive the insert block 52 to move downward until the bottom of the insert block 52 is completely exposed, then put the insert body 3 on the surface of the upper mold body 2, and align the insert block 52 with the slot 12 and insert it, then drive the push rod 9 to slide through the power component 7 until one end of the push rod 9 passes through the first through hole 10 and the second through hole 11 in turn and is engaged with the slot 54, so that the insert body 3 is fixed on the surface of the upper mold body 2, and then put the aluminum alloy liquid into the mold and cast it using the low-pressure casting process. After molding, the casting needs to be demolded. When demolding, the push rod 9 is driven out of the slot by the power component 7 54, then the insert block 52 returns to the slide groove 51 under the pulling of the tension spring 53, and then the casting and the insert body 3 are demoulded as a whole, and finally the insert body 3 can be separated separately from the demoulded casting, and the cast insert body 3 is hung upside down in the upper mold and then poured together with the casting, so that the casting and the insert body 3 can be more accurately fitted, and the inappropriate size between the casting and the insert body 3 when casting separately is reduced, and the arrangement of the push rod 9 and the card slot 54 can make the insert body 3 more stable during casting, and reduce the loosening and deviation during casting, so that the casting quality of the end cover is better.

[0042] The bottom of the insert block 52 is inserted into the slot 12 , and one end of the push rod 9 passes through the first through hole 10 and the second through hole 11 in sequence and extends to the inside of the slot 12 to be engaged with the card slot 54 .

[0043] Among them, movable holes 55 are opened on both sides of the lifting body 1, and the movable holes 55 and one side of the slide groove 51 are mutually connected. A push handle 56 is fixedly connected to one side of the insert block 52, and one end of the push handle 56 passes through the movable hole 55 and extends to the outside of the lifting body 1.

[0044] The front and back sides of the insert block 52 are fixedly connected to the limiting block 57 , the inner surface of the slide slot 51 is provided with a limiting groove 58 , and the limiting block 57 is slidably connected to the inside of the limiting groove 58 .

[0045] The height of the limiting groove 58 is equal to the length of the plug block 52 that is completely exposed, and the length of the plug block 52 that is completely exposed is equal to the depth of the slot 12 .

[0046] Specifically, since the height of the limiting groove 58 of the insert block 52 is equal to the length of the insert block 52 that is completely exposed, and the length of the insert block 52 that is completely exposed is equal to the depth of the slot 12, when the insert block 52 is pressed down to the bottom, it just fits in the slot 12. When the insert block 52 is pulled to the top by the tension spring 53, that is, when the limiting block 57 is at the top of the limiting groove 58, the bottom of the insert block 52 is flush with the bottom of the lifting body 1, thereby ensuring that the surface of the top of the casting is smooth when there is no insert body 3 to be cast.

[0047] Among them, the power component 7 includes a mounting seat 71, the number of which is set to two, a micro motor 72 is fixedly mounted on one side of one mounting seat 71, the output end of the micro motor 72 is fixedly connected to a worm 73, and one end of the worm 73 is rotatably connected to the surface of the other mounting seat 71.

[0048] Among them, a rotating rod 74 is rotatably connected between the inner surface of the lifting body 1 and the interior of the upper mold body 2, and a worm gear 75 is fixedly connected to the surface of the rotating rod 74. The worm gear 75 is meshingly connected with the worm 73.

[0049] Among them, a gear 76 is fixedly connected to the surface of the rotating rod 74, and a connecting plate 77 is fixedly connected to one end of the top rod 9. The two connecting plates 77 are distributed symmetrically around the center of the gear 76. A tooth groove 78 is opened on the surface of the connecting plate 77, and the surface of the gear 76 is meshed with the two tooth grooves 78.

[0050] Specifically, when the power assembly 7 is working, the micro motor 72 is first started through an external controller to work, the micro motor 72 drives the worm wheel 75 to rotate through the worm 73, the worm wheel 75 drives the rotating rod 74 to rotate, and the rotating rod 74 drives the gear 76 to rotate. Through the engagement between the gear 76 and the tooth groove 78, the rotation of the gear 76 causes the connecting plates 77 on both sides to move relative to each other, thereby enabling the push rods 9 on both sides to move relative to each other, and then enabling the push rods 9 to be engaged and disengaged with the slots 54, thereby facilitating the locking and disengagement between the insert body 3 and the upper mold body 2.

[0051] A positioning hole 79 is formed at the top of the fixing sleeve 8 , and a positioning block 710 is fixedly connected to the top of the top rod 9 . The positioning block 710 passes through the interior of the positioning hole 79 and extends to the top side of the fixing sleeve 8 .

[0052] After the plug block 52 is inserted into the bottom side of the slot 12, the power component 7 drives one end of the push rod 9 to pass through the first through hole 10 and the second through hole 11 in turn and engage with the slot 54. Since the positioning hole 79 is located on the fixed sleeve 8 and remains stationary, and the positioning block 710 moves with the push rod 9 on the push rod 9, relative movement occurs between the positioning block 710 and the positioning hole 79. Due to the restrictions of the positioning block 710 and the positioning hole 79, when the positioning block 710 moves to the leftmost end of the positioning hole 79, one end of the push rod 9 is just completely stuck in the slot 54. Then, the power component 7 drives the push rod 9 to move in the opposite direction. Due to the restrictions of the positioning block 710 and the positioning hole 79, when the positioning block 710 moves to the rightmost end of the positioning hole 79, one end of the push rod 9 moves to be just flush with the outer surface of the upper mold body 2. One end of the push rod 9 is provided with a The inner surface of the slot 54 is provided with a curved surface that matches the surface of one end of the push rod 9. Through the setting of the positioning block 710 and the positioning hole 79, when the insert body 3 is fixed on the surface of the upper mold body 2, one end of the push rod 9 can be completely engaged with the slot 54, so that the push rod 9 can be exactly engaged with the slot 54, avoiding the situation where the connection between the push rod 9 and the insert block 52 is too tight or too loose. In addition, when the insert body 3 is separated from the upper mold body 2, one end of the push rod 9 is connected with the outer surface of the upper mold body 2, ensuring the flatness of the appearance of the upper mold body 2, and the setting of the positioning block 710 and the positioning hole 79 can prevent the connecting plates 77 on both sides from slipping and the gears 76, and can prevent the push rods 9 on both sides from colliding with the connecting plates 77, thereby ensuring the normal meshing between the gears 76 and the tooth grooves 78.

[0053] During operation, when the aluminum alloy motor end cover is low-pressure cast, the insert body 3 is first fixed on the surface of the upper mold body 2, wherein the insert body 3 is the bearing steel sleeve on the motor end cover. When fixing, press the push handle 56 downward, and the push handle 56 drives the insert block 52 to move downward inside the slide groove 51 through the movable hole 55 until the limit block 57 moves to the bottom of the limit groove 58, and then the insert body 3 is sleeved on the outside of the upper mold body 2, and the slot 12 is aligned and plugged with the insert block 52, and then the micro motor 72 is started through the external controller to drive the worm 73 to rotate, and the worm 73 drives the rotating rod 74 to rotate through the worm wheel 75, and the gear 76 on the rotating rod 74 makes the connecting plates 77 on both sides move left and right relative to each other through the tooth groove 78, so that the top rods 9 on both sides move relative to each other until the top One end of the rod 9 passes through the first through hole 10 and the second through hole 11 in sequence and is engaged with the slot 54, so that the insert body 3 is locked on the outer surface of the upper mold body 2, and then the aluminum alloy liquid is poured into the interior of the mold, and then the motor end cover is low-pressure cast and formed. After the molding and cooling, the casting needs to be demolded. During demolding, the micro motor 72 is started to drive the worm 73 to move in the opposite direction. Similarly, the push rods 9 on both sides of the upper mold body 2 perform opposite relative movements, so that the push rods 9 are disengaged from the slot 54, and the plug block 52 is disengaged from the slot 12 under the pull of the tension spring 53, and then the casting with the insert body 3 is demolded, and then the insert body 3 is ejected from the casting. The insert body 3 can also be embedded in the casting for use later, thereby completing the low-pressure casting of the motor end cover.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and locking device for an upper die of an aluminum alloy low-pressure casting embedded insert, comprising a hoisting body (1), characterized in that: The bottom of the lifting body (1) is fixedly connected to an upper mold body (2), the outer sleeve of the upper mold body (2) is provided with an insert body (3), the back of the lifting body (1) is provided with a heat dissipation hole (4), the inner sides of the lifting body (1) are provided with a plug-in assembly (5), the bottom of the lifting body (1) is provided with a receiving groove (6), the heat dissipation hole (4) and the receiving groove (6) are interconnected, a power assembly (7) is provided inside the upper mold body (2), the inner sides of the upper mold body (2) are fixedly connected to a fixing sleeve (8), the inner side of the fixing sleeve (8) is slidably connected to a push rod (9), the upper mold body (2) is provided with a first through hole (10) on both sides, the insert body (3) is provided with a plug-in assembly (5), the bottom of the lifting body (1) is provided with a receiving groove (6), the heat dissipation hole (4) and the receiving groove (6) are interconnected, a power assembly (7) is provided inside the upper mold body (2), the inner sides of the upper mold body (2) are fixedly connected to a fixing sleeve (8), the inner side of the fixing sleeve (8) is slidably connected to a push rod (9), the upper mold body (2) is provided with a first through hole (10), the insert body (3) is provided with a plug-in assembly (5), and the inner sides of the lifting body (1) are provided with a plug-in assembly (5). ) are provided with second through holes (11) on both sides of the interior, and slots (12) are provided on both sides of the top of the insert body (3), the second through holes (11) and the interior of the slots (12) are interconnected, one end of the push rod (9) passes through the first through hole (10) and the second through hole (11) in sequence and extends to the interior of the slots (12), the plug-in component (5) includes a slide groove (51), the slide groove (51) is provided on both sides of the bottom of the lifting body (1), the interior of the slide groove (51) is slidably connected with an insert block (52), a tension spring (53) is elastically connected between the top of the insert block (52) and the inner wall of the slide groove (51), and a card groove (54) is provided on one side of the insert block (52).

2. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 1, characterized in that: The bottom of the insert block (52) is inserted into the interior of the slot (12), and one end of the push rod (9) passes through the first through hole (10) and the second through hole (11) in sequence and extends to the interior of the slot (12) to be engaged with the card slot (54).

3. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 1, characterized in that: Movable holes (55) are provided on both sides of the lifting body (1), the movable holes (55) and one side of the slide groove (51) are mutually connected, and a push handle (56) is fixedly connected to one side of the insert block (52), and one end of the push handle (56) passes through the movable hole (55) and extends to the outside of the lifting body (1).

4. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 1, characterized in that: The front and back sides of the insert block (52) are fixedly connected to a limiting block (57), the inner surface of the slide groove (51) is provided with a limiting groove (58), and the limiting block (57) is slidably connected to the inside of the limiting groove (58).

5. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 4, characterized in that: The height of the limiting groove (58) is equal to the length of the plug block (52) that is completely exposed, and the length of the plug block (52) that is completely exposed is equal to the depth of the slot (12).

6. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 1, characterized in that: The power assembly (7) comprises a mounting seat (71), the number of the mounting seats (71) being set to two, a micro motor (72) being fixedly mounted on one side of one of the mounting seats (71), a worm (73) being fixedly connected to the output end of the micro motor (72), and one end of the worm (73) being rotatably connected to the surface of the other mounting seat (71).

7. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 6, characterized in that: A rotating rod (74) is connected to the inner surface of the lifting body (1) and the interior of the upper mold body (2) for common rotation. A worm gear (75) is fixedly connected to the surface of the rotating rod (74). The worm gear (75) is meshingly connected to the worm (73).

8. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 7, characterized in that: A gear (76) is fixedly connected to the surface of the rotating rod (74), and a connecting plate (77) is fixedly connected to one end of the push rod (9). The two connecting plates (77) are centrally symmetrically distributed around the center of the gear (76). A tooth groove (78) is provided on the surface of the connecting plate (77), and the surface of the gear (76) is meshedly connected with the two tooth grooves (78).

9. The upper die positioning and locking device for embedded inserts in low-pressure casting of aluminum alloy according to claim 1, characterized in that: A positioning hole (79) is provided at the top of the fixing sleeve (8), and a positioning block (710) is fixedly connected to the top of the push rod (9); the positioning block (710) passes through the interior of the positioning hole (79) and extends to the top side of the fixing sleeve (8).

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