Automobile lock housing die-casting mold

Abstract

The utility model relates to die casting mould technical field discloses an automobile lock shell die casting mould, including work table, the bottom of work table is provided with and draws mechanism, draw mechanism is used for to the collection filtration of impurity, draw mechanism includes collection box, the top wall fixed connection of collection box is in the bottom wall of work table, two adjacent sides of flow guide shell all are fixedly connected with a plurality of draw pipe, the inside slide connection of collection box has draw shell, the inner wall middle part fixed connection of draw shell has filter board no.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, and in particular to a die-casting mold for automotive lock housings. Background Technology

[0002] The automotive lock housing is the core outer component of the automotive lock system, serving as both a protective barrier and a mounting carrier. It is primarily used to enclose and protect the critical internal structure of the lock system, while also providing a stable mounting base for the entire lock body. This ensures that the lock system can function properly for locking and unlocking in different scenarios. To achieve lightweight material molding, meet the integrated processing and assembly precision requirements of the complex lock housing structure, and meet the mass production needs of the automotive industry, thereby ensuring consistent lock housing dimensions and reducing costs through mass production capabilities, automotive lock housing die-casting molds are required.

[0003] In the die-casting process of automotive lock housings, high-temperature molten metal is sprayed into the mold at high speed and high pressure. Afterward, the mold needs to be cooled, and a release agent is sprayed on the mold surface when the mold is opened. This causes periodic thermal expansion and contraction of the mold surface, eventually leading to thermal fatigue failure and cracking of the mold surface. The current solution is to use laser biomimetic strengthening technology to mimic the wear-resistant and fatigue-resistant structure of organisms and replicate it on the mold surface to improve the mold life. However, there are still problems such as poor pretreatment of raw materials during melting, incomplete cleaning of the mold cavity, residual metal shavings and release agent residues causing impurities to adhere to the mold, resulting in defects in the casting and affecting the overall quality and performance of the automotive lock housing. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a die-casting mold for automotive lock housings, aiming to improve the problems in the prior art where poor pretreatment of smelting raw materials and residual chips in the mold cavity lead to impurities adhering to the mold, causing casting defects and affecting the quality of automotive lock housings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a die-casting mold for automotive lock housings, comprising a worktable, an extraction mechanism at the bottom of the worktable for collecting and filtering impurities, and a replacement mechanism at the top of the worktable; The extraction mechanism includes a collection box, the top wall of which is fixedly connected to the bottom wall of the workbench. A guide shell is fixedly connected to both the front and rear sides of the top of the collection box. Multiple extraction tubes are fixedly connected to adjacent sides of the two guide shells. An extraction shell is slidably connected inside the collection box. A filter plate is fixedly connected to the middle of the inner wall of the extraction shell. A fan is fixedly connected to the bottom rear side of the collection box. A filter element is fixedly connected to the front side of the fan. A pulling assembly is provided on the front wall of the extraction shell. A gate is fixedly connected to the top of the workbench. A filter plate is fixedly connected to the inner wall of the gate.

[0006] As a further description of the above technical solution: The replacement mechanism includes two telescopic rods, the tops of which are fixedly connected to the inner top wall of the workbench. A mounting plate is fixedly connected to the bottom of each telescopic rod. An upper template is slidably connected to the bottom of the mounting plate. Two locking posts are fixedly connected to the top of the upper template. The tops of the two locking posts penetrate the top of the mounting plate. Two locking plates are rotatably connected to the top of the mounting plate. Grooves are formed on adjacent sides of the two locking posts. The opposite sides of the two locking plates engage with the corresponding grooves. Bolts are threaded to the tops of the two locking plates. Multiple engaging posts are fixedly connected to the bottom of the upper template. A lower template is fixedly connected to the top of the workbench, and multiple engaging grooves are formed on the top of the lower template.

[0007] As a further description of the above technical solution: A control switch is fixedly connected to the left side of the workbench, and the control switch is electrically connected to the fan and the telescopic rod respectively.

[0008] As a further description of the above technical solution: The pulling assembly includes a pull rod, the rear side of which is fixedly connected to the front side of the extraction shell, and rectangular grooves are provided at both the upper and lower ends of the pull rod.

[0009] As a further description of the above technical solution: The bottom of the collection box is fixedly connected to multiple support columns, and the bottom of each of the multiple support columns is fixedly connected to a rubber sleeve.

[0010] As a further description of the above technical solution: The extraction mechanism also includes a sliding plate, the top of which is fixedly connected to the bottom of the extraction shell. The inner bottom wall of the collection box is provided with a sliding groove, and the bottom of the sliding plate is slidably connected to the sliding groove.

[0011] As a further description of the above technical solution: A protective plate is fixedly connected to the top of the workbench, and multiple protective pads are fixedly connected to the top of the protective plate.

[0012] As a further description of the above technical solution: The replacement mechanism also includes two gaskets, the inner walls of which are respectively fixedly connected to the middle of the bolt.

[0013] This utility model has the following beneficial effects: In this invention, impurities are driven by the extraction tube to enter the extraction shell through the guide shell, where they are filtered by the first filter plate and the filter element, and finally discharged by the fan, thus completing the unified collection and treatment of impurities. At the same time, the second filter plate inside the gate filters the alloy liquid, preventing impurities from adhering to the mold and improving the overall quality and performance of the car lock housing.

[0014] In this invention, the mounting plate can drive the upper template to move up and down by the drive at the bottom of the telescopic rod, thus completing the opening and closing action of the mold. By releasing the bolts to fix the locking plate, flipping the locking plate, the upper template can be detached from the mounting plate. Conversely, it can be installed, thereby realizing the replacement of the upper template. This avoids the need for additional tools during replacement, avoids the problems of poor compatibility and inconvenient replacement, and improves replacement efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of a die-casting mold for an automotive lock housing proposed in this utility model; Figure 2 This is a front view of a die-casting mold for an automotive lock housing according to the present invention. Figure 3 This is a cross-sectional view of an extraction mechanism for a die-casting mold for an automotive lock housing, as proposed in this utility model. Figure 4 This is an exploded view of the extraction mechanism of a car lock housing die-casting mold proposed in this utility model; Figure 5 This is an exploded view of the extraction shell of a car lock housing die-casting mold proposed in this utility model.

[0016] Legend: 1. Workbench; 2. Extraction mechanism; 201. Collection box; 202. Flow guide shell; 203. Extraction pipe; 204. Extraction shell; 205. Filter plate one; 206. Fan; 207. Filter element; 208. Pulling assembly; 2081. Pull rod; 2082. Rectangular groove; 209. Gate; 210. Filter plate two; 211. Sliding plate; 212. Sliding groove; 3. Replacement mechanism; 301. Telescopic rod; 302. Mounting plate; 303. Upper template; 304. Locking post; 305. Locking plate; 306. Groove; 307. Bolt; 308. Engaging post; 309. Lower template; 310. Engaging groove; 311. Gasket; 4. Control switch; 5. Support post; 6. Rubber sleeve; 7. Protective plate; 8. Protective pad. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of an automotive lock housing die-casting mold, comprising a workbench 1, an extraction mechanism 2 at the bottom of the workbench 1 for collecting and filtering impurities, and a replacement mechanism 3 at the top of the workbench 1 for improving replacement efficiency. The extraction mechanism 2 includes a collection box 201. The top wall of the collection box 201 is fixedly connected to the bottom wall of the workbench 1. The collection box 201 provides a closed space for impurity treatment. The top front and rear sides of the collection box 201 are fixedly connected to the flow guide shells 202. Multiple extraction pipes 203 are fixedly connected to the adjacent sides of the two flow guide shells 202. The extraction pipes 203 are used to extract impurities. An extraction shell 204 is slidably connected inside the collection box 201. A filter plate 205 is fixedly connected to the middle of the inner wall of the extraction shell 204. A fan 206 is fixedly connected to the bottom rear side of the collection box 201. The fan 206 is used to generate negative pressure suction to drive airflow. A filter element 207 is fixedly connected to the front side of the fan 206. A pulling component 208 is provided on the front wall of the extraction shell 204. A gate 209 is fixedly connected to the top of the workbench 1. The gate 209 is used to introduce the alloy liquid into the mold cavity. A filter plate 210 is fixedly connected to the inner wall of the gate 209. Specifically, the workbench 1 provides a stable processing platform, and the extraction mechanism 2 is used to collect and filter metal shavings, dust, and mold release agent residue generated during the die casting process, preventing impurities from accumulating on the surface of the workbench 1 or in the mold gaps, thus affecting the accuracy of subsequent die casting operations and the cleanliness of the castings. The core supporting component of the extraction mechanism 2 is the collection box 201. The top and front sides of the collection box 201 are symmetrically fixedly connected with guide shells 202, which can guide the airflow and impurities to flow in a directional manner. The adjacent sides of the two guide shells 202 are fixedly connected to... Multiple extraction tubes 203 are connected to the collection box 201. These tubes extract various impurities that fall during die casting and transport them into the guide shell 202. An extraction shell 204 is slidably connected inside the collection box 201. The extraction shell 204 has a top-opening drawer-type structure for easy removal and cleaning of any trapped impurities. A filter plate 205 is horizontally fixed to the middle of the inner wall of the extraction shell 204, providing preliminary filtration of impurities entering the extraction shell 204 and preventing large particles from directly impacting subsequent components. The rear side of the collection box 201... A fan 206 is fixedly connected. After the fan 206 is started, it can generate a stable negative pressure suction inside the collection box 201, providing power for the extraction pipe 203 to adsorb impurities and for the airflow to circulate within the collection box 201. At the same time, it can discharge the filtered airflow to the outside. A filter element 207 is fixedly connected to the front of the fan 206, which can perform secondary filtration on the airflow that has been initially purified by the filter plate 205, intercepting residual fine metal dust and ensuring that the discharged airflow meets environmental protection requirements. The operator can pull the pull component 208 to open the filter. The shell 204 is extracted from the collection box 201, simplifying the impurity cleaning process. The top of the workbench 1 is fixedly connected to the gate 209 at the mold cavity entrance, which can guide the high-temperature aluminum alloy liquid pushed by the die casting machine injection chamber into the mold cavity, providing a stable metal liquid delivery channel for the molding of the automotive lock shell casting. The inner wall of the gate 209 is fixedly connected to the filter plate 210 near the cavity entrance. The filter plate 210 can intercept impurities in the alloy liquid before it enters the cavity, reducing the probability of inclusion defects in the automotive lock shell casting.

[0019] Reference Figure 1 , Figure 2 and Figure 5The replacement mechanism 3 includes two telescopic rods 301. The tops of both telescopic rods 301 are fixedly connected to the inner top wall of the workbench 1. The telescopic rods 301 realize the opening and closing action of the mold. The bottom end of the telescopic rods 301 is fixedly connected to the mounting plate 302. The bottom of the mounting plate 302 is slidably connected to the upper template 303. The top of the upper template 303 is fixedly connected to two locking pins 304. The top ends of the two locking pins 304 penetrate the top of the mounting plate 302. The locking pins 304 realize the initial positioning and fixation of the upper template 303 on the mounting plate 302. The top of the mounting plate 302 is rotatably connected to two locks. The fixed plate 305 has grooves 306 on one side of each of the two locking pins 304. The opposite sides of the two locking plates 305 engage with the corresponding grooves 306. The tops of the two locking plates 305 are threaded with bolts 307. The bolts 307 are used to press and fix the locking plates 305 onto the locking pins 304. The bottom of the upper template 303 is fixedly connected with multiple engaging pins 308. The top of the worktable 1 is fixedly connected with a lower template 309. The top of the lower template 309 has multiple engaging slots 310. The engaging pins 308 and engaging slots 310 are used to ensure the consistency of the cavity position when the mold is closed. Specifically, the replacement mechanism 3 achieves rapid mold change and mold closing of the automotive lock housing die-casting mold through modular design. Its core is driven by two telescopic rods 301. The top of the telescopic rods 301 is fixed to the inner top wall of the workbench 1, and the bottom is connected to the mounting plate 302. Through telescopic movement, the upper template 303 completes the mold opening and closing action. The two locking pins 304 at the top of the upper template 303 penetrate the top of the mounting plate 302. By rotating the locking plate 305 at the top of the mounting plate 302, it is locked into the groove 306 of the locking pin 304, and then the bolts 307 are tightened to form a double fixing structure, ensuring that the upper template 303 is stable and does not loosen during high-pressure die casting. The locking pin 308 at the bottom of the upper template 303 engages with the locking groove 310 of the lower template 309 at the top of the workbench 1. When closing the mold, the pin groove positioning corrects the slight offset and ensures the cavity closing accuracy.

[0020] Reference Figure 2 and Figure 4 A control switch 4 is fixedly connected to the left side of the workbench 1. The control switch 4 is electrically connected to the fan 206 and the telescopic rod 301 respectively. The pulling assembly 208 includes a pull rod 2081. The rear side of the pull rod 2081 is fixedly connected to the front side of the extraction shell 204. Rectangular grooves 2082 are opened at both the upper and lower ends of the pull rod 2081. The extraction mechanism 2 also includes a sliding plate 211. The top of the sliding plate 211 is fixedly connected to the bottom of the extraction shell 204. A sliding groove 212 is opened in the inner bottom wall of the collection box 201. The bottom of the sliding plate 211 is slidably connected to the sliding groove 212. Specifically, the control switch 4, which is electrically connected to the fan 206 and the telescopic rod 301 respectively, enables the equipment to be turned on and off. The rectangular grooves 2082 on both the upper and lower ends of the pull rod 2081 make it easy to hold the pull rod 2081 and pull out the extraction shell 204. The sliding groove 212 on the inner bottom wall of the collection box 201 allows the bottom of the sliding plate 211 to slide in connection with the sliding groove 212, facilitating the pulling out of the extraction shell 204 and improving efficiency.

[0021] Reference Figure 1 and Figure 5 The top of the workbench 1 is fixedly connected to a protective plate 7, and the top of the protective plate 7 is fixedly connected to multiple protective pads 8; the bottom of the collection box 201 is fixedly connected to multiple support columns 5, and the bottom of each of the multiple support columns 5 is fixedly connected to a rubber sleeve 6; the replacement mechanism 3 also includes two gaskets 311, and the inner walls of the two gaskets 311 are respectively fixedly connected to the middle of the bolt 307. Specifically, the protective plate 7 is fixed to the top of the workbench 1, providing basic rigid protection and blocking forces directly acting on the top of the workbench 1 to prevent damage to the equipment caused by top stress. The protective pad 8 absorbs and buffers the impact force on the top of the protective plate 7 through its own buffering characteristics, further enhancing the buffering effect of the top protection and ensuring equipment safety. The connection between the collection box 201 and the support column 5 can improve the overall stability of the device. The rubber sleeve 6 is used to increase the friction with the ground.

[0022] Working principle: When collecting and filtering impurities generated during the die-casting process, the impurities are driven by the extraction pipe 203, which guides the airflow through the guide shell 202, changing its flow direction before entering the extraction shell 204. This prevents impurities from clogging the channel during transport. After entering the extraction shell 204, larger particles are intercepted and filtered by the filter plate 205, while fine dust continues to flow with the airflow and undergoes deep filtration by the filter element 207 in front of the fan 206. This ensures that the discharged airflow is clean and free of impurities, thus completing the graded collection of various impurities. With unified processing, the extraction shell 204 can be pulled out and cleaned by pulling component 208. At the same time, when the high-temperature alloy liquid is introduced into the mold cavity through the gate 209, it will be filtered by the inner wall filter plate 210 to intercept impurities mixed in the alloy liquid, preventing these impurities from adhering to the surface of the mold cavity or mixing into the casting. This reduces the wear and cleaning frequency of the mold due to the accumulation of impurities, and also reduces the probability of inclusions and porosity defects in the car lock shell, ultimately improving the overall processing quality, structural strength and performance of the lock shell. Furthermore, during die casting production, the mounting plate 302 can drive the upper template 303 to move up and down via the drive at the bottom of the telescopic rod 301, so that the locking post 308 engages with the locking groove 310, completing the opening and closing action of the mold. When the upper template 303 needs to be replaced, simply loosen the bolt 307 to release the fixing constraint on the locking plate 305, then flip the locking plate 305 to disengage it from the groove 306 of the locking post 304, and slide the locking post 304 out from the bottom of the mounting plate 302 to release the connection between the upper template 303 and the mounting plate 302. Conversely, installation can be performed. The entire process does not require additional tools, avoiding the problems of poor compatibility and cumbersome operation caused by the reliance on special tools during traditional mold replacement. This simplifies the replacement process of the upper template 303, reduces the intensity of manual operation, shortens the replacement time, and improves the replacement efficiency.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A die-casting mold for automotive lock housings, comprising a worktable (1), characterized in that: The bottom of the workbench (1) is provided with an extraction mechanism (2), which is used to collect and filter impurities, and the top of the workbench (1) is provided with a replacement mechanism (3). The extraction mechanism (2) includes a collection box (201), the top wall of which is fixedly connected to the bottom wall of the workbench (1). The top front and rear sides of the collection box (201) are fixedly connected to a flow guide shell (202). Multiple extraction tubes (203) are fixedly connected to adjacent sides of the two flow guide shells (202). An extraction shell (204) is slidably connected inside the collection box (201). A filter plate (205) is fixedly connected to the middle of the inner wall of the extraction shell (204). A fan (206) is fixedly connected to the bottom rear side of the collection box (201). A filter element (207) is fixedly connected to the front side of the fan (206). A pulling component (208) is provided on the front wall of the extraction shell (204). A gate (209) is fixedly connected to the top of the workbench (1). A filter plate (210) is fixedly connected to the inner wall of the gate (209).

2. The automotive lock housing die-casting mold according to claim 1, characterized in that: The replacement mechanism (3) includes two telescopic rods (301). The tops of the two telescopic rods (301) are fixedly connected to the inner top wall of the workbench (1). The bottom ends of the telescopic rods (301) are fixedly connected to a mounting plate (302). The bottom of the mounting plate (302) is slidably connected to an upper template (303). The top of the upper template (303) is fixedly connected to two locking posts (304). The top ends of the two locking posts (304) penetrate the top of the mounting plate (302). The top of the mounting plate (302) can rotate. Two locking plates (305) are connected. A groove (306) is provided on the adjacent side of the two locking posts (304). The opposite side of the two locking plates (305) engages with the corresponding groove (306). Bolts (307) are threaded to the top of the two locking plates (305). Multiple engaging posts (308) are fixedly connected to the bottom of the upper template (303). A lower template (309) is fixedly connected to the top of the workbench (1). Multiple engaging grooves (310) are provided on the top of the lower template (309).

3. The automotive lock housing die-casting mold according to claim 2, characterized in that: A control switch (4) is fixedly connected to the left side of the workbench (1), and the control switch (4) is electrically connected to the fan (206) and the telescopic rod (301) respectively.

4. The automotive lock housing die-casting mold according to claim 1, characterized in that: The pulling assembly (208) includes a pull rod (2081), the rear side of which is fixedly connected to the front side of the extraction shell (204), and rectangular grooves (2082) are provided at both the upper and lower ends of the pull rod (2081).

5. The automotive lock housing die-casting mold according to claim 1, characterized in that: The bottom of the collection box (201) is fixedly connected to a plurality of support columns (5), and the bottom of each of the plurality of support columns (5) is fixedly connected to a rubber sleeve (6).

6. The automotive lock housing die-casting mold according to claim 1, characterized in that: The extraction mechanism (2) further includes a sliding plate (211), the top of which is fixedly connected to the bottom of the extraction shell (204), and a sliding groove (212) is provided on the inner bottom wall of the collection box (201), and the bottom of the sliding plate (211) is slidably connected to the sliding groove (212).

7. The automotive lock housing die-casting mold according to claim 1, characterized in that: A protective plate (7) is fixedly connected to the top of the workbench (1), and a plurality of protective pads (8) are fixedly connected to the top of the protective plate (7).

8. The automotive lock housing die-casting mold according to claim 2, characterized in that: The replacement mechanism (3) also includes two gaskets (311), the inner walls of which are respectively fixedly connected to the middle of the bolt (307).

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