Die-casting machine die locking structure and die-casting machine

Abstract

The utility model relates to the technical field of die-casting machines, and discloses a die-casting machine die locking structure and a die-casting machine. The head plate is fixedly arranged on the rack; the middle plate is arranged on the machine frame in a sliding mode, and the tail plate is arranged on the machine frame on the side, away from the head plate, of the middle plate in a sliding mode; the high-pressure mold locking oil cylinder is arranged between the middle plate and the tail plate; the tail plate band-type brake oil cylinder is arranged on one side, far away from the middle plate, of the tail plate; the movable mold assembly supporting mechanism is fixedly arranged on the rack and corresponds to the bottom of the middle plate; and the movable mold assembly movement driving mechanism is arranged at the bottom of the middle plate and is in rolling fit with the movable mold assembly supporting mechanism. The movable mold assembly moving driving mechanism is in rolling fit with the movable mold assembly supporting mechanism, so that the middle plate and the tail plate can be driven to move through the movable mold assembly moving driving mechanism, accurate moving position control over the middle plate and the tail plate is achieved, and the functional requirement for high-precision pressing and taking of a mold is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting machine technical field, concretely relates to a die casting machine lock die structure and die casting machine. BACKGROUND

[0002] Die casting machine is a machine used for pressure casting. Under the action of pressure, the die casting machine injects molten metal liquid into a mold and cools it to form a solid metal casting. With the progress of science and technology and industrial production, especially with the development of the automobile, motorcycle and household appliance industries, die casting technology has developed extremely rapidly.

[0003] As one of the important equipment in the die casting industry, large die casting machines have been widely used in the fields of automobiles, aerospace, engineering machinery, etc. in recent years. The integrated body die casting structural parts are different from traditional automobile die castings. They integrate dozens or even hundreds of body structural parts, and not only require good die casting forming quality and high mechanical properties, but also must meet the size technical requirements. Therefore, there is a higher demand and requirement for super large die casting machines with a capacity of 9000 tons or more. The clamping mechanism is a key component on the super large die casting machine, which drives the movable die seat plate to open and close the die casting mold. Its structure greatly affects the production efficiency of the die casting machine, the service life of the mold, the precision and density of the casting, and the labor intensity of the work, etc.

[0004] A good die locking system design can significantly improve the performance of the die casting machine, including but not limited to: (1) improving production efficiency: by optimizing the design of the die locking system, the time for mold replacement and adjustment can be reduced, thereby improving production efficiency. (2) Enhance the quality of castings: reasonable die locking system design can ensure that the mold remains stable under high pressure, thereby producing higher quality castings. (3) Prolong the service life of the mold: by reducing the deformation and wear of the mold under high pressure, the service life of the mold is prolonged. (4) Reduce labor intensity: optimize the operation of the die locking system, reduce manual intervention, and reduce the labor intensity of the operators.

[0005] The patent CN211218631U proposes a die casting machine mold locking mechanism, which comprises a support bottom plate, the front surface of the support bottom plate is fixedly connected with a support block, a sliding groove is formed in the top of the bottom support block, a telescopic push rod is fixedly connected in the sliding groove, a sliding block is fixedly connected to the left end of the telescopic push rod, an extension column is fixedly connected to the top of the sliding block, a sliding groove is formed in the bottom of the top support block, a sliding block is slidably connected in the sliding groove, a receiving column is fixedly connected to the bottom of the sliding block, a movable mold block is fixedly connected between the receiving column and the extension column, and a connecting block is fixedly connected between the two support blocks. The patent CN114406240A proposes a die casting machine mold locking mechanism and die casting machine, which comprises a main frame, a sliding rod is erected on the main frame; a mold locking seat is arranged on the sliding rod; a movable mold plate is arranged on the mold locking seat; a locking assembly is arranged on the mold locking seat, the sliding rod passes through the locking assembly, and the locking assembly slides on the sliding rod together with the mold locking seat; when the mold locking seat is locked, the locking assembly and the sliding rod are frictionally abutted on the side wall to limit the change of the relative position of the locking assembly and the sliding rod.

[0006] The patent CN209334696U proposes a no elbow type fast mold locking die casting machine, which comprises a base, a static mold plate and a movable mold plate, the static mold plate is arranged at one end of the base and the other end is provided with a large lever support seat, the static mold plate, the movable mold plate and the large lever support seat are assembled together in series by four large levers, a fast mold closing oil cylinder is fixedly arranged on the large lever support seat and the piston rod of the fast mold closing oil cylinder is connected to the movable mold plate, a mold locking support plate is arranged on the rear side of the movable mold plate, a mold locking oil cylinder is arranged on the mold locking support plate, the mold locking support plate is connected with a mold locking sliding block on the large lever support seat through a mold locking support rod, and the mold locking sliding block is provided with locking force by a sliding block oil cylinder.

[0007] The design of the mold locking system of a large die casting machine is a complex and key technical field, which not only affects the performance of the die casting machine and the quality of the castings, but also directly relates to the improvement of production cost and production efficiency. The inventors of the present application have found that the existing design of the mold locking system of a large die casting machine often cannot accurately control the movement position of a super-large movable mold assembly and the movement efficiency of a super-large and super-heavy mold plate, and thus it is necessary to solve this problem. SUMMARY

[0008] The utility model aims at providing a die casting machine mold locking mechanism and die casting machine, which can accurately control the movement of the movable mold assembly.

[0009] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0010] A die casting machine mold locking structure comprises:

[0011] A frame;

[0012] a head plate fixedly arranged on the frame;

[0013] a middle plate slidingly arranged on the frame,

[0014] a tail plate slidingly arranged on the frame away from the middle plate on the side of the head plate;

[0015] a high-pressure locking oil cylinder arranged between the middle plate and the tail plate for connecting the middle plate and the tail plate;

[0016] a tail plate brake oil cylinder arranged on the side of the tail plate away from the middle plate;

[0017] a movable die assembly support mechanism fixedly arranged on the frame corresponding to the bottom of the middle plate;

[0018] a movable die assembly moving drive mechanism arranged in rolling cooperation with the bottom of the middle plate and the movable die assembly support mechanism for driving the middle plate and the tail plate.

[0019] By rolling cooperation of the movable die assembly moving drive mechanism and the movable die assembly support mechanism, the middle plate and the tail plate can be moved by the movable die assembly moving drive mechanism, the accurate moving position control of the middle plate and the tail plate is realized, the functional requirements of high-precision pressing and taking of the mold are met, and the accurate control of the moving position of the movable die assembly, especially the super-large movable die assembly, is effectively solved, and the moving operation efficiency of the template, especially the super-large and super-heavy template, is improved.

[0020] According to a preferred embodiment, it further comprises a Corinthian column, which sequentially passes through the head plate, the middle plate and the tail plate, the Corinthian column is fixedly connected with the head plate, and the tail plate brake oil cylinder is sleeved on the Corinthian column away from the middle plate on the side of the tail plate.

[0021] According to a preferred embodiment, the number of the Corinthian column is four, which is arranged on the four corners of the head plate, the middle plate and the tail plate respectively.

[0022] According to a preferred embodiment, the movable die assembly support mechanism comprises a support rail and a rack, the support rail is arranged on the frame corresponding to the bottom of the middle plate, the rack is arranged on the support rail, and the length direction of the support rail is parallel to the sliding direction of the middle plate.

[0023] According to a preferred embodiment, the movable die assembly moving drive mechanism comprises a drive motor and a gear, the drive motor is fixedly arranged on the support rail, the gear is engaged with the rack, the bottom of the middle plate is rotatably arranged with a shaft, one end of the shaft is drivingly connected to the drive motor, and the gear is fixedly arranged on the circumferential side of the shaft.

[0024] According to a preferred embodiment, the movable die assembly moving driving mechanism further comprises a speed reducer, an output end of the driving motor is drivingly connected to an input end of the speed reducer, an output section of the speed reducer is drivingly connected to the shaft, the speed reducer is fixedly connected to the support rail, and the driving motor is fixedly connected to the speed reducer.

[0025] According to a preferred embodiment, the output end of the driving motor and the input end of the speed reducer are drivingly connected through a bevel gear.

[0026] A die casting machine comprises a die casting machine body and a die casting machine locking structure as described above, and the die casting machine locking structure is arranged on the die casting machine body.

[0027] The die casting machine locking structure has the following beneficial effects:

[0028] 1. The movable die assembly moving driving mechanism and the movable die assembly support mechanism are rolling matched, so that the middle plate and the tail plate can be moved by the movable die assembly moving driving mechanism, the accurate moving position control of the middle plate and the tail plate is realized, the functional requirements of the high-precision die pressing and part taking are met, the accurate control of the moving position of the movable die assembly, especially the super large movable die assembly, is effectively solved, and the moving operation efficiency of the template, especially the super large and super heavy template, is improved.

[0029] 2. The die casting machine locking structure provided by the application drives the middle plate, the tail plate, the high-pressure locking oil cylinder and the tail plate brake oil cylinder to open and close the mold, locks the tail plate by the tail plate brake oil cylinder after reaching the set position, and provides balanced force for the locking and adjustment of the middle plate and the tail plate, and reaches the set locking force after overpressure, so that the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a connection schematic view of the die casting machine locking structure of the utility model;

[0031] Figure 2 It is a connection schematic view of the movable die assembly support mechanism in the die casting machine locking structure of the utility model;

[0032] Figure 3 It is a structure schematic view of the die casting machine locking structure of the utility model;

[0033] Figure 4 It is a local enlarged view of the die casting machine locking structure of the utility model.

[0034] Wherein, 1, head plate; 2, middle plate; 3, tail plate; 4, column; 5, high-pressure locking oil cylinder; 6, tail plate clutch oil cylinder; 7, rack; 8, movable die assembly support mechanism; 81, support rail; 82, rack; 9, movable die assembly moving drive mechanism; 91, drive motor; 92, speed reducer; 93, gear; 94, shaft; 95, slider; 10, fixed die; 20, movable die. DETAILED DESCRIPTION

[0035] The other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present application. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the present application based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, and are not intended to limit the protection scope of the present application.

[0036] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only show the components related to the present application in the drawings, not according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex.

[0037] As shown in Figures 1-4 The present application provides a die casting machine locking structure, which comprises a rack 7; a head plate 1 fixedly arranged on the rack 7; a middle plate 2 slidingly arranged on the rack 7; a tail plate 3 slidingly arranged on the rack 7 away from the side of the middle plate 2 close to the head plate 1; a high-pressure locking oil cylinder 5 arranged between the middle plate 2 and the tail plate 3, used for connecting the middle plate 2 and the tail plate 3; a tail plate clutch oil cylinder 6 arranged on the side of the tail plate 3 away from the middle plate 2; a movable die assembly support mechanism 8 fixedly arranged on the rack 7 corresponding to the bottom of the middle plate 2; and a movable die assembly moving drive mechanism 9 arranged in rolling cooperation with the movable die assembly support mechanism 8 at the bottom of the middle plate 2, used for driving the middle plate 2 and the tail plate 3.

[0038] In actual use, the side close to the head plate 1 and the middle plate 2 is respectively provided with a fixed die 10 and a movable die 20, and the middle plate 2 drives the movable die 20 to be folded with the fixed die 10 on the head plate 1. Compared with the prior art, the mold clamping structure provided by the application drives the middle plate 2, the tail plate 3, the high-pressure mold clamping oil cylinder 5 and the tail plate brake oil cylinder 6 to open and close the mold through the movable die assembly moving driving mechanism 9, locks the tail plate 3 through the tail plate brake oil cylinder 6 after reaching the set position, and provides balanced force for the mold clamping and adjustment movement of the middle plate 2 and the tail plate 3 through the high-pressure mold clamping oil cylinder 5, and reaches the set mold clamping force after overpressure; at the same time, the movable die assembly moving driving mechanism 9 and the movable die assembly support mechanism 8 are rolling matched, so that the middle plate 2 and the tail plate 3 can be moved by the movable die assembly moving driving mechanism 9, the accurate moving position control of the middle plate 2 and the tail plate 3 is realized, the function requirement of high-precision mold pressing and part taking is met, and the accurate control of the moving position of the movable die assembly, especially the super-large movable die assembly, is effectively solved, and the moving operation efficiency of the mold plate, especially the super-large and super-heavy mold plate, is improved.

[0039] The accompanying drawings are incorporated into and constitute a part of this application. Figure 3 The device further comprises a corinthian column 4. The corinthian column 4 is sequentially arranged through the head plate 1, the middle plate 2 and the tail plate 3. The corinthian column 4 is fixedly connected with the head plate, and the tail plate brake oil cylinder 6 is sleeved on the corinthian column 4 away from the middle plate 2 in sequence, which is used for locking the tail plate 3 after the tail plate reaches the specified position. Preferably, the number of the corinthian column 4 is four, which is arranged on the four corners of the head plate 1, the middle plate 2 and the tail plate 3. In the application, four groups of corinthian columns 4 guide the sliding direction of the middle plate 2 and the tail plate 3, and also facilitate the uniform distribution of the mold clamping force.

[0040] The movable die assembly support mechanism 8 comprises a support rail 81 and a rack 82. The support rail 81 is arranged on the chassis 7 corresponding to the bottom of the middle plate 2. The rack 82 is arranged on the support rail 81. The length direction of the support rail 81 is parallel to the sliding direction of the middle plate 2.

[0041] The movable die assembly moving driving mechanism 9 comprises a driving motor 91 and a gear 93. The driving motor 91 is slidingly arranged on the support rail 81, the gear 93 is engaged with the rack 82, the bottom of the middle plate 2 is rotatably provided with a shaft 94, one end of the shaft 94 is drivingly connected to the driving motor, and the gear 93 is fixedly arranged on the side of the shaft 94. In the application, the driving motor drives the gear 93 to rotate, so that the gear 93 moves along the rack 82 and drives the middle plate 2 and the tail plate 3 to slide along the corinthian column 4, thereby realizing the opening and closing of the mold. The movable die assembly moving driving mechanism 9 in the embodiment realizes rolling friction through the gear 93 and the rack 82, so that the driving force of the super-large movable die assembly can be reduced to the greatest extent, and the moving operation efficiency is improved. Preferably, the driving motor 91 adopts a servo motor, so that the control accuracy of the moving position of the super-large movable die assembly can be improved.

[0042] The movable die assembly moving driving mechanism 9 further comprises a speed reducer 92, an output end of the driving motor 91 is in transmission connection with an input end of the speed reducer 92, an output end of the speed reducer 92 is in transmission connection with the shaft 94, the speed reducer 92 is slidably arranged on the supporting rail 81, and the driving motor 91 is fixedly connected with the speed reducer 92. In the application, the speed reducer 92 is arranged to reduce the output rotating speed of the driving motor 91, so as to facilitate the control of the movement of the middle plate 2. The speed reducer 92 is slidably connected to the supporting rail 81 in a mode that an external sliding block 95 is connected. The sliding block 95 is provided with a sliding groove corresponding to the supporting rail 81.

[0043] Preferably, the tail plate 3 is also provided with the shaft 94 and the gear, but is not provided with the driving motor 91 and the speed reducer 92. The tail plate 3 is connected with the middle plate 2 based on the high-pressure locking oil cylinder 5 and moves with the middle plate 2.

[0044] Preferably, the output shaft of the driving motor 91 is perpendicular to the input shaft of the speed reducer 92, and the output shaft of the driving motor 91 and the input shaft of the speed reducer 92 are fixedly provided with the bevel gears which are in mesh with each other, so that the driving motor 91 can be vertically placed, and the arrangement in the limited space volume is facilitated.

[0045] The application further provides a die casting machine, which comprises a die casting machine body and the die casting machine locking structure as described above, and the die casting machine locking structure is mounted on the die casting machine body.

[0046] The above embodiments are only preferred embodiments for fully illustrating the application, and the protection scope of the application is not limited thereto. Any equivalent replacement or transformation of the application by the person skilled in the art based on the application is within the protection scope of the application.

Claims

1. A die locking structure of a die casting machine, characterized by comprising: The die casting machine body and the die casting machine locking structure as claimed in any one of claims 1-7 are included. A rack (7) is included. A head plate (1) is fixedly arranged on the rack (7). A middle plate (2) is slidingly arranged on the rack (7). A tail plate (3) is slidingly arranged on the rack (7) away from the head plate (1). A high-pressure locking oil cylinder (5) is arranged between the middle plate (2) and the tail plate (3) to connect the middle plate (2) and the tail plate (3). A tail plate brake oil cylinder (6) is arranged on the side of the tail plate (3) away from the middle plate (2). A movable die assembly support mechanism (8) is fixedly arranged on the rack (7) corresponding to the bottom of the middle plate (2). A movable die assembly moving drive mechanism (9) is arranged in rolling cooperation with the movable die assembly support mechanism (8) at the bottom of the middle plate (2) to drive the middle plate (2) and the tail plate (3).

2. The die casting machine locking structure according to claim 1, characterized by, A corinthian column (4) is further included, which is arranged through the head plate (1), the middle plate (2) and the tail plate (3) in sequence, the corinthian column (4) is fixedly connected with the head plate (1), and the tail plate brake oil cylinder (6) is sleeved on the corinthian column (4) away from the middle plate (2) on the side of the tail plate (3).

3. The die casting machine locking structure according to claim 2, wherein The number of the corinthian column (4) is four, which is arranged on the four corners of the head plate (1), the middle plate (2) and the tail plate (3) respectively.

4. The die casting machine locking structure of claim 1 wherein, The movable die assembly support mechanism (8) includes a support rail (81) and a rack (82), the support rail (81) is arranged on the rack (7) corresponding to the bottom of the middle plate (2), and the rack (82) is arranged on the support rail (81), the length direction of the support rail (81) is parallel to the sliding direction of the middle plate (2).

5. The die casting machine locking structure according to claim 4, wherein The movable die assembly moving drive mechanism (9) includes a drive motor (91) and a gear (93), the drive motor (91) is slidingly arranged on the support rail (81), the gear (93) is engaged with the rack (82), the bottom of the middle plate (2) is rotatably provided with a shaft (94), one end of the shaft (94) is drivingly connected to the drive motor, and the gear (93) is fixedly arranged on the side of the shaft (94).

6. The die casting machine locking structure according to claim 5, wherein The movable die assembly moving drive mechanism (9) further includes a speed reducer (92), the output end of the drive motor (91) is drivingly connected to the input end of the speed reducer (92), the output end of the speed reducer (92) is drivingly connected to the shaft (94), the speed reducer (92) is slidingly arranged on the support rail (81), and the drive motor (91) is fixedly connected to the speed reducer (92).

7. The die casting machine locking structure according to claim 6, wherein The output end of the drive motor (91) and the input end of the speed reducer (92) are drivingly connected through a bevel gear.

8. A die casting machine characterized by comprising: The die casting machine body and the die casting machine locking structure as claimed in any one of claims 1-7 are included.

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