Die casting machine tool clamp for engine cylinder cover

Abstract

The utility model discloses a die-casting machine work fixture for an engine cylinder cover, which relates to the technical field of die-casting machine work fixture design, and comprises a supporting flat plate, a movable clamping unit and a material taking and collecting unit, the four corners of the lower side surface of the supporting flat plate are respectively and fixedly connected with a stable supporting cylinder; a movable clamping unit is arranged on the surface of the upper side of the supporting flat plate, round chamfers are arranged at the four corners of the supporting flat plate correspondingly, and the material taking and collecting unit comprises a first engine cylinder cover mold, a second engine cylinder cover mold, a material taking round block, a movable push plate, an electric push rod, a collecting box and a collecting box fixing plate; after die casting, material taking is more convenient, the production efficiency of the engine cylinder cover is not affected, bubbles cannot be generated in the die casting machine during die casting, the die casting precision of the engine cylinder cover is not affected, and the die casting machine is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machine fixture design, in particular to a die-casting machine fixture for an engine cylinder cover. Background Art

[0002] The cylinder head is installed on the cylinder body, sealing the cylinder from the top and forming a combustion chamber. It is often in contact with high-temperature and high-pressure combustion gas, so it bears a large thermal and mechanical load. The cylinder head of a water-cooled engine is equipped with a cooling water jacket, and the cooling water holes on the lower end surface of the cylinder head are connected to the cooling water holes of the cylinder body. Circulating water is used to cool the high-temperature parts such as the combustion chamber. When producing the engine cylinder head, die-casting is often required. In order to facilitate production, a die-casting machine fixture for the engine cylinder head is required.

[0003] The existing die-casting machine fixture for the engine cylinder head has the problem that it is inconvenient to take out the material after die-casting, which affects the production efficiency of the engine cylinder head. During die-casting, bubbles may be generated inside, which affects the die-casting accuracy of the engine cylinder head and is inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a die-casting machine fixture for an engine cylinder head. After die-casting, it is more convenient to take out materials without affecting the production efficiency of the engine cylinder head. During die-casting, no bubbles are generated inside and the die-casting accuracy of the engine cylinder head is not affected. The utility model is relatively convenient to use and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-casting machine fixture for an engine cylinder head, comprising a supporting plate, a mobile clamping unit, and a material collection unit;

[0006] Support plate: The four corners of the lower surface are respectively fixedly connected to a stable support cylinder, the upper surface of the support plate is provided with a movable clamping unit, and the four corners of the support plate are respectively provided with circular chamfers;

[0007] The material collection unit comprises an engine cylinder head mold 1, an engine cylinder head mold 2, a material collection round block, a movable push plate, an electric push rod, a collection box and a collection box fixed plate. The right side surface of the fixed vertical plate in the mobile clamping unit is provided with an engine cylinder head mold 1, and the left side surface of the mobile vertical plate in the mobile clamping unit is provided with an engine cylinder head mold 2. The engine cylinder head mold 1 is fixedly corresponding to the engine cylinder head mold 2. The engine cylinder head mold 2 is provided with pushing circular grooves on both sides. The left side surface of the fixed vertical plate is provided with circular holes at positions corresponding to the two pushing circular grooves. The two circular holes respectively penetrate the fixed vertical plate and extend into the pushing circular grooves. A material collection round block is fixedly clamped in each of the two circular grooves. A fixed cylinder is respectively provided in each of the two circular holes. The two fixed cylinders are respectively connected to the opposite The corresponding material-taking round block is fixedly connected, the left ends of the two fixed cylinders extend to the left side of the fixed vertical plate respectively and are fixedly connected to the movable push plate, the left side surface of the fixed vertical plate is located at the upper and lower sides of the movable push plate and is fixedly connected to a push rod fixing frame respectively, an electric push rod is fixedly connected to the push rod fixing frame, the right end of the electric push rod is fixedly connected to the corresponding movable push plate, the upper side surface of the supporting plate is located at the right side of the fixed vertical plate and is provided with a discharge hole, the discharge hole passes through the upper and lower sides of the supporting plate, the lower side surface of the supporting plate is located at the left and right sides of the discharge hole and is fixedly connected to a collecting box through a collecting box fixing plate, the feed through hole on the collecting box corresponds to the discharge hole, and the input end of the electric push rod is electrically connected to the output end of the external power supply through an external control switch group.

[0008] The supporting plate is used to fix the installation device, the stable supporting cylinder is used to support the device, the mobile clamping unit is used to move the mold in the fixture for easy use, the engine cylinder head mold one and the engine cylinder head mold two are matched to facilitate the die-casting of the engine cylinder head for production, the collection box fixing plate is used to fix the collection box, and the collection box is used to fix and collect the formed engine cylinder head. The electric push rod is started to push the moving push plate to move, and the moving push plate moves to move the material picking block, so as to eject the engine cylinder head formed in the mold, so as to facilitate the production of the engine cylinder head.

[0009] Furthermore, the material collection unit also includes a limiting cylinder and a limiting circular hole. The four corners of the left surface of the engine cylinder head mold one are respectively fixedly connected to a limiting cylinder, and the four corners of the right surface of the engine cylinder head mold two are respectively opened with a limiting circular hole, and the four limiting circular holes are respectively fixedly connected with the corresponding limiting cylinders.

[0010] The limiting cylinder and the limiting circular hole are snap-fitted to allow the mold to be snap-fitted accordingly, making it easy to use.

[0011] Furthermore, the material collection unit also includes an exhaust groove, and the exhaust groove is provided on the left surface of the fixed vertical plate in the movable clamping unit at the position of the second edge of the engine cylinder head mold.

[0012] The exhaust groove is used to exhaust air during clamping to prevent bubbles from being generated during pouring, which affects the production accuracy of the engine cylinder head and improves production efficiency.

[0013] The two movable blocks are slidably connected to the movable block, and the two movable blocks are slidably connected to the movable block, and the movable block is slidably connected to the movable block.

[0014] The support fixing frame is used to fix the fixed vertical plate, the fixed vertical plate is used to fix the engine cylinder head mold one, the auxiliary cylindrical support frame is used to fix the auxiliary movable cylinder, the auxiliary movable cylinder is used to make the movement of the movable vertical plate more stable, the movable sliding column is used to move the movable slider, the movable slider is used to move the movable support frame, the mobile support frame is used to fix the movable vertical plate, the movable vertical plate is used to fix the engine cylinder head mold two, and is used to facilitate the fixed clamping of the mold.

[0015] Furthermore, the movable card-connecting unit also includes a die-casting pipe, a sealing circular plate and a movable push rod. A feeding circular hole is opened on the engine cylinder head mold, and a card-connecting connecting circular hole is opened on the movable vertical plate at a position corresponding to the feeding circular hole. The connecting circular hole penetrates the corresponding movable vertical plate and extends into the feeding circular hole. The right side surface of the movable vertical plate is located at the edge of the connecting circular hole and is fixedly connected to the die-casting pipe through a sealing strip. A sealing circular plate is fixedly carded in the die-casting pipe, and a movable push rod is arranged on the sealing circular plate. The movable push rod is slidably connected in the die-casting pipe. A feeding circular hole is opened on the die-casting pipe at a position on the left side of the sealing circular plate, and the feeding circular hole extends into the die-casting pipe.

[0016] The die-casting pipe is used to allow the raw materials of the engine cylinder head to flow into the mold, the sealing circular plate is used to seal and fix the die-casting pipe, and the moving push rod is used to push the raw materials to move, so as to facilitate the raw materials to flow into the mold and facilitate die-casting.

[0017] Furthermore, the mobile card connection unit also includes a hydraulic cylinder fixing frame and a hydraulic cylinder. The left surface of the auxiliary cylindrical support frame is provided with a hydraulic cylinder fixing frame, and the hydraulic cylinder is provided on the hydraulic cylinder fixing frame. The right end of the hydraulic cylinder is fixedly connected to the left surface of the movable vertical plate, and the input end of the hydraulic cylinder is electrically connected to the output end of the external power supply through an external control switch group.

[0018] The hydraulic cylinder fixing frame is used to fix the hydraulic cylinder. When the hydraulic cylinder is started, it pushes the movable vertical plate to move, so that the movable vertical plate and the fixed vertical plate can be fixedly connected.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The die-casting machine fixture for the engine cylinder head has the following advantages: a material collection unit is provided, and the engine cylinder head mold 1 and the engine cylinder head mold 2 are matched to facilitate die-casting of the engine cylinder head for production; the collection box fixing plate is used to fix the collection box, and the collection box is used to fix and collect the formed engine cylinder head; the electric push rod is started to push the moving push plate to move, and the moving push plate moves to move the material collection round block to eject the engine cylinder head formed in the mold; the limiting cylinder and the limiting circular hole are clamped to allow the mold to be clamped correspondingly; the exhaust groove is used to exhaust when clamping to prevent bubbles from being generated during pouring for use;

[0021] 2. The die-casting machine fixture for the engine cylinder head has the following advantages: a mobile clamping unit is provided, and a support fixing frame is used to fix a fixed vertical plate, and the fixed vertical plate is used to fix the engine cylinder head mold 1; an auxiliary cylindrical support frame is used to fix an auxiliary movable cylinder, and the auxiliary movable cylinder is used to make the movable vertical plate move more stably; a movable sliding column is used to move a movable slider, and a movable slider is used to move a movable support frame, and a movable support frame is used to fix the movable vertical plate, and the movable vertical plate is used to fix the engine cylinder head mold 2; a die-casting pipeline is used to allow the engine cylinder head raw material to flow into the mold; a sealing circular plate is used to seal and fix the die-casting pipeline; a movable push rod is used to push the raw material to move, so that the raw material can be conveniently put into the mold; a hydraulic cylinder fixing frame is used to fix the hydraulic cylinder, and the hydraulic cylinder is started to push the movable vertical plate to move, so that the movable vertical plate and the fixed vertical plate can be conveniently fixed and clamped, so as to operate the fixture for use;

[0022] 3. The die-casting machine fixture for the engine cylinder head has the following advantages: after die-casting, it is more convenient to take out the material, which does not affect the production efficiency of the engine cylinder head. During die-casting, no bubbles will be generated inside, which does not affect the die-casting accuracy of the engine cylinder head, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the back cross-sectional structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the die-casting pipeline of the utility model.

[0026] In the figure: 1 supporting plate, 2 stable supporting cylinder, 3 moving card connection unit, 31 supporting fixed frame, 32 fixed vertical plate, 33 auxiliary cylindrical supporting frame, 34 auxiliary moving cylinder, 35 hydraulic cylinder fixed frame, 36 hydraulic cylinder, 37 moving slider, 38 moving sliding column, 39 moving supporting frame, 310 moving vertical plate, 311 die casting pipe, 312 sealing circular plate, 313 moving push rod, 4 material taking and collecting unit, 41 engine cylinder head mold 1, 42 limiting cylinder, 43 engine cylinder head mold 2, 44 limiting circular hole, 45 material taking round block, 46 moving push plate, 47 electric push rod, 48 collection box, 49 collection box fixed plate, 410 exhaust groove. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-3 , This embodiment provides a technical solution: a die-casting machine fixture for an engine cylinder head, comprising a supporting plate 1, a mobile clamping unit 3, and a material collection unit 4;

[0029] Support plate 1: A stable support cylinder 2 is fixedly connected to the four corners of the lower surface, a movable clamping unit 3 is arranged on the upper surface of the support plate 1, and circular chamfers are arranged on the four corners of the support plate 1;

[0030] The material collection unit 4 includes an engine cylinder head mold 1 41, an engine cylinder head mold 2 43, a material collection round block 45, a movable push plate 46, an electric push rod 47, a collection box 48 and a collection box fixed plate 49. The right side surface of the fixed vertical plate 32 in the mobile clamping unit 3 is provided with an engine cylinder head mold 1 41, and the left side surface of the mobile vertical plate 310 in the mobile clamping unit 3 is provided with an engine cylinder head mold 2 43. The engine cylinder head mold 1 41 is fixedly corresponding to the engine cylinder head mold 2 43. The engine cylinder head mold 2 43 is provided with push circular grooves on both sides. The left side surface of the fixed vertical plate 32 is provided with circular holes at positions corresponding to the two push circular grooves. The two circular holes respectively penetrate the fixed vertical plate 32 and extend into the push circular grooves. A material collection round block 45 is fixedly clamped in each of the two circular grooves. A fixed cylinder is provided in each of the two circular holes. The fixed cylinders are fixedly connected to the corresponding material-taking circular blocks 45 respectively, the left ends of the two fixed cylinders extend to the left sides of the fixed vertical plate 32 respectively and are fixedly connected to the movable push plate 46, the left surface of the fixed vertical plate 32 is located at the upper and lower sides of the movable push plate 46, and is fixedly connected to a push rod fixing frame respectively, and an electric push rod 47 is fixedly connected to the push rod fixing frame, and the right end of the electric push rod 47 is fixedly connected to the corresponding movable push plate 46, and a discharge hole is provided on the upper side surface of the support plate 1 located at the right side of the fixed vertical plate 32, and the discharge hole passes through the upper and lower sides of the support plate 1, and the lower side surface of the support plate 1 is located at the left and right sides of the discharge hole and is fixedly connected to a collection box 48 through a collection box fixing plate 49, and the feed through hole on the collection box 48 corresponds to the discharge hole, and the input end of the electric push rod 47 is electrically connected to the output end of the external power supply through an external control switch group.

[0031] The support plate 1 is used to fix the installation device, the stable support cylinder 2 is used to support the device, the mobile clamping unit 3 is used to move the mold in the tooling fixture for easy use, the engine cylinder head mold 1 41 and the engine cylinder head mold 2 43 are matched to facilitate the die-casting of the engine cylinder head for production, the collection box fixing plate 49 is used to fix the collection box 48, and the collection box 48 is used to fix and collect the molded engine cylinder head. The electric push rod 47 is started to push the movable push plate 46 to move, and the movable push plate 46 moves to move the material removal round block 45, so as to eject the engine cylinder head formed in the mold, so as to facilitate the production of the engine cylinder head.

[0032] The material collection unit 4 also includes a limiting cylinder 42 and a limiting circular hole 44. A limiting cylinder 42 is fixedly connected to the four corners of the left surface of the engine cylinder head mold 1 41, and a limiting circular hole 44 is opened at the four corners of the right surface of the engine cylinder head mold 2 43. The four limiting circular holes 44 are fixedly connected to the corresponding limiting cylinders 42.

[0033] The limiting cylinder 42 and the limiting circular hole 44 are snap-fitted to allow the mold to be snap-fitted accordingly, making it easy to use.

[0034] The material collecting unit 4 further comprises an exhaust groove 410 . The exhaust groove 410 is provided on the left surface of the fixed vertical plate 32 in the movable clamping unit 3 at the edge of the second engine cylinder head mold 43 .

[0035] The exhaust groove 410 is used to exhaust air during the clamping process to prevent bubbles from being generated during casting, which affects the production accuracy of the engine cylinder head and improves production efficiency.

[0036] The mobile card unit 3 includes a support fixing frame 31, a fixed vertical plate 32, an auxiliary cylindrical support frame 33, an auxiliary mobile cylinder 34, a mobile slider 37, a mobile slide column 38, a mobile support frame 39 and a mobile vertical plate 310. The upper surface of the support plate 1 is located on the left side of the discharge hole and is fixedly connected to a support fixing frame 31. A fixed vertical plate 32 is fixedly connected to the support fixing frame 31. A slide groove is respectively opened on the upper surface of the support plate 1 at the front and rear sides of the discharge hole. A mobile slide column 38 is fixedly connected to each of the two slide grooves. A mobile slider 37 is slidably connected to each of the two slide grooves. The two mobile sliders 3 The sliding holes on 7 are slidably connected to the corresponding movable sliding columns 38, the upper surfaces of the two movable sliding blocks 37 are respectively fixedly connected to a movable support frame 39, and the two movable support frames 39 are respectively fixedly connected to a movable vertical plate 310, and the movable vertical plate 310 corresponds to the fixed vertical plate 32. The right surface of the supporting plate 1 is fixedly connected to an auxiliary cylindrical support frame 33, and two equally spaced auxiliary movable cylinders 34 are fixedly connected to the auxiliary cylindrical support frame 33. The left ends of the two auxiliary movable cylinders 34 are respectively fixedly connected to the left surface of the fixed vertical plate 32, and the sliding holes on the movable vertical plate 310 are slidably connected to the corresponding auxiliary movable cylinders 34.

[0037] The support fixing frame 31 is used to fix the fixed vertical plate 32, the fixed vertical plate 32 is used to fix the engine cylinder head mold 41, the auxiliary cylindrical support frame 33 is used to fix the auxiliary movable cylinder 34, the auxiliary movable cylinder 34 is used to make the movement of the movable vertical plate 310 more stable, the movable sliding column 38 is used to move the movable slider 37, the movable slider 37 is used to move the movable support frame 39, the movable support frame 39 is used to fix the movable vertical plate 310, the movable vertical plate 310 is used to fix the engine cylinder head mold 43, and is used to facilitate the fixed clamping of the mold.

[0038] The movable clamping unit 3 also includes a die-casting pipe 311, a sealing circular plate 312 and a movable push rod 313. A feeding circular hole is opened on the engine cylinder head mold 41, and a clamping connecting circular hole is opened on the movable vertical plate 310 at a position corresponding to the feeding circular hole. The connecting circular hole penetrates the corresponding movable vertical plate 310 and extends into the feeding circular hole. The right side surface of the movable vertical plate 310 is located at the edge of the connecting circular hole and is fixedly connected to the die-casting pipe 311 through a sealing strip. A sealing circular plate 312 is fixedly clamped in the die-casting pipe 311, and a movable push rod 313 is arranged on the sealing circular plate 312. The movable push rod 313 is slidably connected in the die-casting pipe 311. A feeding circular hole is opened on the die-casting pipe 311 at the left side of the sealing circular plate 312, and the feeding circular hole extends into the die-casting pipe 311.

[0039] The die-casting pipe 311 is used to allow the raw material of the engine cylinder head to flow into the mold, the sealing circular plate 312 is used to seal and fix the die-casting pipe 311, and the moving push rod 313 is used to push the raw material to move, so as to facilitate the raw material to enter the mold and perform die-casting.

[0040] The mobile card-connecting unit 3 also includes a hydraulic cylinder fixing frame 35 and a hydraulic cylinder 36. The hydraulic cylinder fixing frame 35 is arranged on the left surface of the auxiliary cylindrical support frame 33, and the hydraulic cylinder 36 is arranged on the hydraulic cylinder fixing frame 35. The right end of the hydraulic cylinder 36 is fixedly connected to the left surface of the mobile vertical plate 310, and the input end of the hydraulic cylinder 36 is electrically connected to the output end of the external power supply through an external control switch group.

[0041] The hydraulic cylinder fixing frame 35 is used to fix the hydraulic cylinder 36 . The hydraulic cylinder 36 is started to push the movable vertical plate 310 to move, so that the movable vertical plate 310 and the fixed vertical plate 32 can be fixedly connected.

[0042] The working principle of a die-casting machine fixture for an engine cylinder head provided by the utility model is as follows: first, a support fixing frame 31 is used to fix a fixed vertical plate 32, and the fixed vertical plate 32 is used to fix an engine cylinder head mold 41; an auxiliary cylindrical support frame 33 is used to fix an auxiliary movable cylinder 34, and the auxiliary movable cylinder 34 is used to make the movable vertical plate 310 move more stably; a movable sliding column 38 is used to move a movable slider 37, and the movable slider 37 is used to move a movable support frame 39, and the movable support frame 39 is used to fix the movable vertical plate 310, and the movable vertical plate 310 is used to fix the engine cylinder head mold 43; a die-casting pipe 311 is used to allow the engine cylinder head raw material to flow into the mold; a sealing circular plate 312 is used to seal and fix the die-casting pipe 311; and a movable push rod 313 is used to push the raw material to move, so as to facilitate the raw material to flow into the mold. The hydraulic cylinder fixing frame 35 is used to fix the hydraulic cylinder 36. The hydraulic cylinder 36 is started to push the movable vertical plate 310 to move, so that the movable vertical plate 310 and the fixed vertical plate 32 are fixedly connected. At the same time, the engine cylinder head mold 1 41 and the engine cylinder head mold 2 43 are matched to facilitate the die-casting of the engine cylinder head for production. The collection box fixing plate 49 is used to fix the collection box 48. The collection box 48 is used to fix and collect the formed engine cylinder head. The electric push rod 47 is started to push the movable push plate 46 to move. The movable push plate 46 moves to move the material taking round block 45, so as to eject the engine cylinder head formed in the mold. The limiting cylinder 42 and the limiting circular hole 44 are connected to allow the mold to be connected accordingly. The exhaust groove 410 is used to exhaust when connected to prevent bubbles from being generated during pouring for use.

[0043] It is worth noting that the core chip of the external control switch group disclosed in the above embodiment is a PLC single chip microcomputer, and the external control switch group controls the operation of the electric push rod 47 and the hydraulic cylinder 36 using a method commonly used in the prior art.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A die-casting machine fixture for an engine cylinder head, characterized in that: It comprises a supporting plate (1), a movable clamping unit (3), and a material collecting unit (4); Support plate (1): the four corners of the lower surface are respectively fixedly connected to a stable support cylinder (2), the upper surface of the support plate (1) is provided with a movable clamping unit (3), and the four corners of the support plate (1) are respectively provided with circular chamfers; The material collection unit (4) comprises an engine cylinder head mold 1 (41), an engine cylinder head mold 2 (43), a material collection round block (45), a movable push plate (46), an electric push rod (47), a collection box (48) and a collection box fixed plate (49). The right side surface of the fixed vertical plate (32) in the movable clamping unit (3) is provided with an engine cylinder head mold 1 (41), and the left side surface of the movable vertical plate (310) in the movable clamping unit (3) is provided with an engine cylinder head mold 2 (43). The engine cylinder head mold 1 (41) is fixedly corresponding to the engine cylinder head mold 2 (43). The engine cylinder head mold 2 (43) is provided with push circular grooves on both sides. The left side surface of the fixed vertical plate (32) is provided with circular holes at positions corresponding to the two push circular grooves. The two circular holes respectively penetrate the fixed vertical plate (32) and extend into the push circular grooves. A material collection round block (45) is fixedly clamped in each of the two circular grooves. A fixed cylinder is respectively provided in each of the two circular holes. The fixed cylinders are fixedly connected to the corresponding material-taking circular blocks (45) respectively, and the left ends of the two fixed cylinders extend to the left side of the fixed vertical plate (32) and are fixedly connected to the movable push plate (46). The left surface of the fixed vertical plate (32) is located at the upper and lower sides of the movable push plate (46) and is fixedly connected to a push rod fixing frame respectively. An electric push rod (47) is fixedly connected to the push rod fixing frame. The right end of the electric push rod (47) is fixedly connected to the corresponding movable push plate (46). The upper surface of the support plate (1) is located at the right side of the fixed vertical plate (32) and is provided with a discharge hole. The discharge hole passes through the upper and lower sides of the support plate (1). The lower surface of the support plate (1) is located at the left and right sides of the discharge hole and is fixedly connected to a collection box (48) through a collection box fixing plate (49). The feed through hole on the collection box (48) corresponds to the discharge hole. The input end of the electric push rod (47) is electrically connected to the output end of the external power supply through an external control switch group.

2. The die-casting machine fixture for an engine cylinder head according to claim 1, characterized in that: The material collection unit (4) further comprises a limiting cylinder (42) and a limiting circular hole (44); the four corners of the left surface of the engine cylinder head mold (41) are respectively fixedly connected to a limiting cylinder (42); the four corners of the right surface of the engine cylinder head mold (43) are respectively provided with a limiting circular hole (44); the four limiting circular holes (44) are respectively fixedly connected to the corresponding limiting cylinders (42).

3. The die-casting machine fixture for an engine cylinder head according to claim 1, characterized in that: The material collection unit (4) further comprises an exhaust groove (410), and the exhaust groove (410) is provided on the left side surface of the fixed vertical plate (32) in the movable clamping unit (3) at the edge of the second engine cylinder head mold (43).

4. The die-casting machine fixture for an engine cylinder head according to claim 1, characterized in that: The mobile card-joining unit (3) comprises a support fixing frame (31), a fixed vertical plate (32), an auxiliary cylindrical support frame (33), an auxiliary movable cylindrical frame (34), a movable slider (37), a movable slide column (38), a movable support frame (39) and a movable vertical plate (310). The upper surface of the support plate (1) is fixedly connected to a support fixing frame (31) at a position on the left side of the discharge hole. A fixed vertical plate (32) is fixedly connected to the support fixing frame (31). A slide groove is respectively provided on the upper surface of the support plate (1) at positions on both sides of the discharge hole, and a movable slide column (38) is respectively fixedly connected to the two slide grooves. A movable slider (37) is respectively slidably connected to the two slide grooves. The two movable sliders ( The sliding holes on the two movable slide blocks (37) are slidably connected to the corresponding movable slide columns (38); the upper side surfaces of the two movable slide blocks (37) are respectively fixedly connected to a movable support frame (39); the two movable support frames (39) are respectively fixedly connected to a movable vertical plate (310); the movable vertical plate (310) corresponds to the fixed vertical plate (32); the right side surface of the support plate (1) is fixedly connected to an auxiliary cylindrical support frame (33); the auxiliary cylindrical support frame (33) is fixedly connected to two equally spaced auxiliary movable cylinders (34); the left ends of the two auxiliary movable cylinders (34) are respectively fixedly connected to the left side surface of the fixed vertical plate (32); the sliding holes on the movable vertical plate (310) are slidably connected to the corresponding auxiliary movable cylinders (34).

5. The die-casting machine fixture for an engine cylinder head according to claim 4, characterized in that: The movable clamping unit (3) further comprises a die-casting pipe (311), a sealing circular plate (312) and a movable push rod (313); a feeding circular hole is provided on the engine cylinder head mold (41); a clamping connecting circular hole is provided on the movable vertical plate (310) at a position corresponding to the feeding circular hole; the connecting circular hole penetrates the corresponding movable vertical plate (310) and extends into the feeding circular hole; the right side surface of the movable vertical plate (310) is located at a position at the edge of the connecting circular hole The die-casting pipe (311) is fixedly connected to the die-casting pipe (311) via a sealing rubber strip; a sealing circular plate (312) is fixedly clamped in the die-casting pipe (311); a movable push rod (313) is provided on the sealing circular plate (312); the movable push rod (313) is slidably connected in the die-casting pipe (311); a feeding circular hole is provided on the die-casting pipe (311) at a position on the left side of the sealing circular plate (312); the feeding circular hole extends into the die-casting pipe (311).

6. The die-casting machine fixture for an engine cylinder head according to claim 4, characterized in that: The mobile card connection unit (3) further comprises a hydraulic cylinder fixing frame (35) and a hydraulic cylinder (36); the hydraulic cylinder fixing frame (35) is arranged on the left side surface of the auxiliary cylindrical support frame (33); the hydraulic cylinder (36) is arranged on the hydraulic cylinder fixing frame (35); the right end of the hydraulic cylinder (36) is fixedly connected to the left side surface of the mobile vertical plate (310); the input end of the hydraulic cylinder (36) is electrically connected to the output end of an external power supply through an external control switch group.

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