Locking mechanism for a skeleton bushing die casting machine

Abstract

The utility model relates to die -casting equipment technical field, concretely relates to the locking mechanism of skeleton bush die -casting machine, including frame and install the fixed mould plate on the frame, the top of fixed mould plate is provided with movable mould plate, and movable mould plate carries out the mold opening operation through the drive of left and right two mutually symmetrical first hydraulic cylinder, and the left and right sides of movable mould plate are all fixed with side locking block, and the side locking block is provided with the plug -in slot of end and outside intercommunication, the left and right sides of plug -in slot all are provided with the locking assembly, and the locking assembly includes the second hydraulic cylinder of setting in the side locking block side, and the telescopic axle end of second hydraulic cylinder is detachably installed with guide rod, and the front end of guide rod is fixed with locking plug, and locking plug and plug -in slot between plug -in cooperation, and the side of side locking block still is provided with the guide sleeve for guiding guide rod. The utility model is convenient for locking operation, has the advantage that locking is stable.

Description

Technical Field

[0001] This utility model relates to the field of die casting equipment technology, and more specifically, to the mold locking mechanism of a skeleton bushing die casting machine. Background Technology

[0002] In the die casting production process of skeleton bushing, a corresponding die casting mold is usually used for preparation. The die casting mold usually includes an upper mold and a lower mold. After the upper and lower molds are closed, in order to ensure that the upper and lower molds will not be easily opened during the die casting process, it is usually necessary to perform a mold locking operation on the upper and lower molds on the die casting machine. The mold locking mechanism is one of the key components of the die casting machine, and its performance directly affects the quality of the product and the production efficiency.

[0003] Traditional die-casting machines for skeleton bushings mostly employ simple hydraulic or mechanical clamping mechanisms. While hydraulic clamping mechanisms possess a certain clamping force, they are prone to problems such as hydraulic oil leakage and unstable pressure during prolonged operation. This leads to fluctuations in clamping force, causing minute gaps in the mold during die-casting, which in turn results in defects in the skeleton bushing such as flash and substandard dimensional accuracy.

[0004] While mechanical clamping mechanisms have a relatively simple structure, they suffer from slow clamping speed and inconvenient adjustment, making it difficult to adapt to the rapid switching requirements of different specifications of skeleton bushing molds. Furthermore, mechanical parts are prone to wear under frequent operation, increasing equipment maintenance costs and downtime, and causing inconvenience to users. Utility Model Content

[0005] The purpose of this invention is to provide a mold-locking mechanism for a skeleton bushing die-casting machine to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The mold-locking mechanism of the skeleton bushing die-casting machine includes a frame and a fixed mold plate mounted on the frame. A movable mold plate is provided above the fixed mold plate. The movable mold plate is driven by two symmetrical first hydraulic cylinders to perform mold opening and closing operations. Side locking blocks are fixedly installed on both sides of the movable mold plate. The side locking blocks are provided with insertion slots whose ends are connected to the outside. Mold-locking assemblies are provided on both sides of the insertion slots. The mold-locking assemblies include a second hydraulic cylinder located on one side of the side locking blocks. A guide rod is detachably installed at the end of the telescopic shaft of the second hydraulic cylinder. A locking plug is fixedly installed at the front end of the guide rod. The locking plug is inserted into the insertion slot. A guide sleeve for guiding the guide rod is also provided on one side of the side locking blocks.

[0007] Preferably, a plurality of guide posts are fixedly installed on the upper surface of the fixed template, and the movable template is sleeved on the guide posts and slidably connected to the guide posts.

[0008] Preferably, a perforated plate is fixedly installed at the end of the telescopic shaft of the first hydraulic cylinder, and the moving template is detachably installed on the bottom surface of the perforated plate.

[0009] Preferably, the insertion slot is frustum-shaped, and the outer diameter of the insertion slot increases sequentially from the inside to the outside. The size of the locking plug is adapted to the size of the insertion slot. This feature makes it easier for the locking plug to be inserted into the socket for positioning.

[0010] Preferably, the locking assembly further includes a vertical beam fixedly installed on the external frame, and the second hydraulic cylinder is fixedly installed on the vertical beam.

[0011] Preferably, a support frame is fixedly installed on the front side of the vertical beam, and the guide sleeve is fixedly installed at the end of the support frame; This feature provides stable support for the guide sleeve.

[0012] Preferably, a steel plate is fixedly installed at the end of the telescopic shaft of the second hydraulic cylinder, and a bolt plate is fixedly installed at the rear end of the guide rod, wherein the bolt plate and the steel plate are detachably connected.

[0013] Preferably, a column is fixedly installed at the bottom of the guide sleeve, a fixed base is fixedly installed at the bottom end of the column, and two symmetrical side support rods are fixedly installed between the guide sleeve and the fixed base. The fixed base is fixedly installed on the frame. This feature further reinforces the guide sleeve, ensuring a more robust and stable overall structure that is less prone to damage under stress.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a first hydraulic cylinder driven by left and right sides to drive the moving template for mold opening and closing operations. Compared with traditional mechanical mold locking mechanisms, it can quickly realize the opening and closing of the mold, greatly improving the mold locking speed. At the same time, the locking plug driven by the second hydraulic cylinder is engaged with the insertion slot of the side locking block to lock the mold and share the force during mold locking. Compared with traditional hydraulic mold locking mechanisms, it effectively avoids the problem of mold locking force fluctuation caused by hydraulic oil leakage and unstable pressure, and realizes stable and fast mold locking operation, thereby improving production efficiency and ensuring the dimensional accuracy and quality of the die casting of the skeleton bushing.

[0015] 2. This utility model designs the insertion slot into a frustum shape and adapts the size of the locking plug to it. During mold locking, the locking plug can be inserted into the insertion slot more smoothly, reducing resistance and wear during the insertion process. At the same time, the guide rod and guide sleeve cooperate to provide precise guidance for the insertion of the locking plug, realizing the quick and accurate insertion and limiting of the locking plug with the insertion slot, thereby improving the convenience and reliability of mold locking operation.

[0016] 3. This utility model provides stable support for the guide sleeve by setting up a vertical beam, support frame, column, fixed base and side support rod. During the mold locking process, even if the guide sleeve is subjected to a large external force, it can remain stable and is not easily damaged. The second hydraulic cylinder, guide rod and other components are detachably connected by steel plate and bolt plate, which facilitates the replacement and maintenance of parts. This achieves the effect of ensuring the overall structure of the mold locking mechanism is firm and stable, reducing equipment maintenance costs and downtime. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the mold-locking assembly of this utility model; The meanings of the labels in the diagram are as follows: 1. Frame; 10. Fixed template; 11. Guide column; 12. Moving template; 13. Side locking block; 131. Insertion slot; 14. First hydraulic cylinder; 141. Perforated plate; 2. Mold clamping assembly; 20. Vertical beam; 21. Support frame; 22. Guide sleeve; 23. Second hydraulic cylinder; 231. Steel plate; 24. Guide rod; 241. Bolt plate; 25. Locking plug; 26. Column; 27. Fixed base; 28. Side support rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3This utility model provides a technical solution: a mold-locking mechanism for a skeleton bushing die-casting machine, including a frame 1 and a fixed mold plate 10 mounted on the frame 1. A movable mold plate 12 is arranged above the fixed mold plate 10. The movable mold plate 12 is driven by two symmetrical first hydraulic cylinders 14 to perform mold opening and closing operations, enabling the movable mold plate 12 to obtain a stable and balanced driving force. Compared with the traditional single drive method, the mold opening and closing action can be realized faster and more smoothly, effectively improving production efficiency. At the same time, the symmetrical arrangement of the first hydraulic cylinders 14 ensures that the movable mold plate 12 is subjected to uniform force during movement, reducing wear caused by uneven force and extending the service life of the movable mold plate 12 and related components.

[0020] In this embodiment, side locking blocks 13 are fixedly installed on both the left and right sides of the moving template 12. The side locking blocks 13 are provided with insertion slots 131 whose ends are connected to the outside. Locking components 2 are provided on both the left and right sides of the insertion slots 131. The locking components 2 include a second hydraulic cylinder 23 provided on one side of the side locking blocks 13. A guide rod 24 is detachably installed at the end of the telescopic shaft of the second hydraulic cylinder 23. A locking plug 25 is fixedly installed at the front end of the guide rod 24. The locking plug 25 is inserted into the insertion slot 131. A guide sleeve 22 is also provided on one side of the side locking blocks 13 to guide the guide rod 24, so that when in use, the locking plug 25 can be inserted into the insertion slot 131 to limit the side locking blocks 13 in the vertical direction, thereby achieving the effect of stabilizing the moving template 12.

[0021] like Figure 2 As shown, multiple guide pillars 11 are fixedly installed on the upper surface of the fixed template 10. The movable template 12 is fitted onto the guide pillars 11 and slidably connected to them. The guide pillars 11 provide precise guidance for the movement of the movable template 12, enabling it to move smoothly along a fixed direction during mold opening and closing, thus ensuring the accuracy and stability of mold closure. This effectively prevents the movable template 12 from shifting or wobbling during movement, improves the precision of the skeleton bushing die casting, and reduces product defects caused by misalignment of the mold.

[0022] like Figure 2 As shown, a perforated plate 141 is fixedly installed at the end of the telescopic shaft of the first hydraulic cylinder 14. The moving template 12 is detachably installed on the bottom surface of the perforated plate 141. This detachable connection method facilitates the installation, disassembly, and replacement of the moving template 12. When it is necessary to change to a mold of different specifications or to perform maintenance and repair on the moving template 12, the moving template 12 can be quickly disassembled, greatly shortening the time for equipment maintenance and mold replacement, and improving the flexibility of equipment use and production efficiency.

[0023] like Figure 3As shown, the insertion slot 131 is frustum-shaped, with its outer diameter increasing sequentially from the inside out. The size of the locking plug 25 is matched with the size of the insertion slot 131. During mold locking operations, the frustum-shaped insertion slot 131 automatically guides and positions the locking plug 25, allowing it to be inserted more smoothly into the insertion slot 131, reducing resistance and jamming during insertion. Simultaneously, this structural fit achieves tighter insertion and locking, enhancing mold locking reliability and effectively preventing loosening or opening of the mold during die casting.

[0024] like Figure 3 As shown, the mold-locking assembly 2 also includes a vertical beam 20 fixedly mounted on the external frame. The second hydraulic cylinder 23 is fixedly mounted on the vertical beam 20. The vertical beam 20 provides a stable support foundation for the second hydraulic cylinder 23, ensuring its stability during operation and preventing swaying or displacement due to its own force. This ensures that the second hydraulic cylinder 23 can stably drive the guide rod 24 and the locking plug 25 to perform mold-locking operations, improving the stability and reliability of the mold-locking mechanism.

[0025] like Figure 3 As shown, a support frame 21 is fixedly installed on the front side of the vertical beam 20, and a guide sleeve 22 is fixedly installed at the end of the support frame 21. The support frame 21 provides a reliable support structure for the guide sleeve 22, enhancing the installation stability of the guide sleeve 22. During the insertion and withdrawal of the guide rod 24, the guide sleeve 22 can stably guide the guide rod 24, ensuring the straightness and accuracy of the movement of the guide rod 24, and preventing the guide rod 24 from shifting due to instability of the guide sleeve 22, thereby affecting the mold clamping effect.

[0026] like Figure 3 As shown, a steel plate 231 is fixedly installed at the end of the telescopic shaft of the second hydraulic cylinder 23, and a bolt plate 241 is fixedly installed at the rear end of the guide rod 24. The bolt plate 241 and the steel plate 231 are detachably connected, which facilitates the installation, disassembly and maintenance of the guide rod 24 and the second hydraulic cylinder 23. When the guide rod 24 is worn or damaged, it can be quickly removed from the second hydraulic cylinder 23 for replacement, reducing the difficulty and cost of equipment maintenance. It also facilitates the debugging and optimization of the entire mold clamping assembly 2.

[0027] like Figure 3As shown, a column 26 is fixedly installed at the bottom of the guide sleeve 22, and a fixed base 27 is fixedly installed at the bottom end of the column 26. Two symmetrical side support rods 28 are also fixedly installed between the guide sleeve 22 and the fixed base 27. The fixed base 27 is fixedly installed on the frame 1. The column 26 and the fixed base 27 provide basic support for the guide sleeve 22. The side support rods 28 further enhance the structural strength and stability of the guide sleeve 22, so that the guide sleeve 22 can remain firm and stable when subjected to the pressure and impact of the guide rod 24, and is not easy to deform or be damaged. This ensures that the guide sleeve 22 guides the guide rod 24 stably for a long time, and ensures the normal operation of the mold clamping mechanism.

[0028] Finally, it should be noted that the first hydraulic cylinder 14, the second hydraulic cylinder 23, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0029] When the mold-locking mechanism of the skeleton bushing die-casting machine of this utility model is in use, the equipment is started and the first hydraulic cylinder 14, which is symmetrical on the left and right, drives the moving template 12 to slide smoothly along the guide post 11 to complete the mold closure. Then, the mold-locking assembly 2 starts to work. The telescopic shaft of the second hydraulic cylinder 23 drives the guide rod 24 and the locking plug 25 at the front end. Under the precise guidance of the guide sleeve 22, it is inserted into the insertion groove 131 of the side locking block 13 to lock and limit the moving template 12, and share the force acting on the first hydraulic cylinder 14 and the second hydraulic cylinder 23 during the die-casting process. When the mold is opened, the second hydraulic cylinder 23 drives the locking plug 25 to retract. After the locking plug 25 is pulled out, the first hydraulic cylinder 14 drives the moving platen 12 to move upward to perform the mold opening operation.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold-locking mechanism for a skeleton bushing die-casting machine, comprising a frame (1) and a fixed mold plate (10) mounted on the frame (1), characterized in that: A movable template (12) is provided above the fixed template (10). The movable template (12) is driven by two symmetrical first hydraulic cylinders (14) to perform mold opening and closing operations. Side locking blocks (13) are fixedly installed on both sides of the movable template (12). The side locking blocks (13) are provided with insertion slots (131) whose ends are connected to the outside. Mold locking assemblies (2) are provided on both sides of the insertion slots (131). The mold locking assembly (2) includes a second hydraulic cylinder (23) provided on one side of the side locking block (13). A guide rod (24) is detachably installed at the end of the telescopic shaft of the second hydraulic cylinder (23). A locking plug (25) is fixedly installed at the front end of the guide rod (24). The locking plug (25) is inserted into the insertion slot (131). A guide sleeve (22) for guiding the guide rod (24) is also provided on one side of the side locking block (13).

2. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 1, characterized in that: Multiple guide posts (11) are fixedly installed on the upper surface of the fixed template (10), and the movable template (12) is sleeved on the guide posts (11) and slidably connected to the guide posts (11).

3. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 1, characterized in that: The end of the telescopic shaft of the first hydraulic cylinder (14) is fixedly installed with a perforated plate (141), and the moving template (12) is detachably installed on the bottom surface of the perforated plate (141).

4. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 1, characterized in that: The plug slot (131) is frustum shaped, and the outer diameter of the plug slot (131) increases sequentially from the inside to the outside. The size of the locking plug (25) is adapted to the size of the plug slot (131).

5. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 1, characterized in that: The locking assembly (2) also includes a vertical beam (20) fixedly installed on the external frame, and the second hydraulic cylinder (23) is fixedly installed on the vertical beam (20).

6. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 5, characterized in that: A support frame (21) is fixedly installed on the front side of the vertical beam (20), and the guide sleeve (22) is fixedly installed at the end of the support frame (21).

7. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 1, characterized in that: A steel plate (231) is fixedly installed at the end of the telescopic shaft of the second hydraulic cylinder (23), and a bolt plate (241) is fixedly installed at the rear end of the guide rod (24). The bolt plate (241) and the steel plate (231) are detachably connected.

8. The mold-locking mechanism of the skeleton bushing die-casting machine according to claim 1, characterized in that: A column (26) is fixedly installed at the bottom of the guide sleeve (22), and a fixed base (27) is fixedly installed at the bottom end of the column (26). Two symmetrical side support rods (28) are also fixedly installed between the guide sleeve (22) and the fixed base (27). The fixed base (27) is fixedly installed on the frame (1).

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