A safe loading and unloading structure for die casting equipment

Abstract

This utility model provides a safe loading and unloading structure for die-casting equipment, belonging to the field of die-casting production technology, to solve the problem of cumbersome maintenance under high-temperature and dusty conditions in existing safe loading and unloading structures for die-casting equipment. It includes a fixed base, a robotic arm body, hinge shafts, loading and unloading robotic claws, lubrication boxes, maintenance components, and warning components. The robotic arm body is mounted on the upper part of the fixed base; multiple sets of hinge shafts are provided and installed at the joints inside the robotic arm body; the loading and unloading robotic claws are installed at one end of the robotic arm body; multiple sets of lubrication boxes are provided and bolted to the outside of the joints of the robotic arm body; the maintenance components are located inside the robotic arm body; and the warning components are located inside the lubrication boxes. This utility model has the advantages of convenient maintenance, real-time monitoring, and rapid modular assembly and disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of die casting production technology, and more specifically, it relates to a safe loading and unloading structure for die casting equipment. Background Technology

[0002] Die casting is a precision casting method that uses high pressure to rapidly fill a mold with molten metal and then solidify it under pressure. It is widely used in many industrial fields such as automotive, electronics, and machinery. In the die casting production process, the loading and unloading process is crucial. With the development of industrial automation technology, the loading and unloading process is becoming increasingly automated and intelligent. Existing die casting equipment uses a safe loading and unloading structure with a multi-degree-of-freedom robotic arm as its core carrier. Internally, it integrates a dual-function robotic gripper unit: one set uses a modular gripper design to grasp and place the die-cast product; the other set is equipped with a customized aluminum molten ladle for transferring the molten aluminum. By switching between the robotic grippers to perform loading and unloading operations, the entire process of material handling, pouring, and unloading is efficiently completed within the die casting cycle. Compared to traditional manual operation, this automated loading and unloading system not only avoids safety risks such as high-temperature molten metal splashing and mold closure compression.

[0003] Existing application number CN202323517755.2 discloses a robot for unloading and loading die-casting materials, relating to the field of robot technology. It includes: a machine body, a base, an arm body, grippers, a protective frame, and a support block. The base is mounted on the bottom of the machine body, and the arm body is mounted on the top of the machine body. Grippers are connected to the ends of the arm body. In this robot, when the rotating rod rotates, it drives a first bevel gear to rotate. When the first bevel gear rotates, it drives a second bevel gear to mesh and rotate. When the second bevel gear rotates, it drives a threaded rod to rotate. When the threaded rod rotates, it drives a rotating block to rotate. Furthermore, when the threaded rod rotates, it drives a slider to slide threadedly. When the knob is turned, it seals the port of the storage block and limits the wire harness, preventing it from sliding out of the storage block. This simple and convenient method allows for the neat storage of wire harnesses.

[0004] Based on the above, most existing die-casting equipment uses multi-hinged joint robotic arms for safe loading and unloading structures, which allows the robotic arms to swing at multiple angles to complete complex actions. However, the internal hinge shafts, bearings and other moving parts are in harsh conditions of high temperature and metal dust for a long time. In order to maintain the normal operation of the robotic arm, each joint needs to be disassembled and re-lubricated regularly, which is quite cumbersome. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a safe loading and unloading structure for die-casting equipment. This addresses the issue that most existing safe loading and unloading structures for die-casting equipment employ multi-hinged joint robotic arms to facilitate complex movements by swinging the robotic arm at multiple angles. However, the internal hinge shafts, bearings, and other moving parts are subjected to harsh conditions of high temperature and metal dust for extended periods. To maintain the normal operation of the robotic arm, regular disassembly and re-lubrication of each joint are required, resulting in cumbersome operations.

[0006] The purpose and function of this utility model's safe loading and unloading structure for die-casting equipment are achieved through the following specific technical means:

[0007] A safety loading and unloading structure for die-casting equipment includes a fixed base, a robotic arm body, hinge shafts, loading and unloading robotic claws, lubrication boxes, lubrication pipes, maintenance components, and warning components. The robotic arm body is mounted on the upper part of the fixed base. Multiple sets of hinge shafts are provided and installed at joints inside the robotic arm body. The loading and unloading robotic claws are installed at one end of the robotic arm body. Multiple sets of lubrication boxes are provided and bolted to the outer side of the joints of the robotic arm body. Multiple sets of lubrication pipes are provided, with one end fixedly connected to the inside of each set of lubrication boxes, and the other end fixedly connected to the joints of the robotic arm body. The maintenance components are located inside the robotic arm body. The warning components are located inside the lubrication boxes.

[0008] Furthermore, the maintenance component includes: a threaded screw and an output shaft. The threaded screw is provided in multiple sets, and the multiple sets of threaded screws are rotatably connected to the inside of multiple sets of lubrication boxes. The output shaft is provided in multiple sets, and the multiple sets of output shafts are rotatably connected to one end of the multiple sets of threaded screws.

[0009] Furthermore, the maintenance component also includes: a limiting pawl and a limiting ratchet, wherein multiple sets of limiting pawls are provided, and the multiple sets of limiting pawls are respectively installed at one end of multiple sets of output shafts; and multiple sets of limiting ratchets are provided, and the multiple sets of limiting ratchets are respectively installed at one end of multiple sets of threaded screws.

[0010] Furthermore, the maintenance component also includes: incomplete gears and drive gears, wherein multiple sets of incomplete gears are provided, and the multiple sets of incomplete gears are coaxially mounted on one end of multiple sets of hinge shafts; multiple sets of drive gears are provided, and the multiple sets of drive gears are coaxially fixedly mounted on the outside of multiple sets of output shafts.

[0011] Furthermore, the maintenance component also includes: a mounting groove, a transmission piston, and an oil inlet. The mounting groove is located at the joint of the main body of the robotic arm. Multiple sets of transmission pistons are provided, and the multiple sets of transmission pistons are slidably connected inside multiple sets of lubrication boxes. The multiple sets of transmission pistons are threadedly connected to the outside of multiple sets of threaded lead screws. Multiple sets of oil inlets are provided, and the multiple sets of oil inlets are installed on the upper part of the multiple sets of lubrication boxes.

[0012] Furthermore, the warning component includes: a trigger switch and a warning mechanism. The trigger switch is provided in multiple sets, and the multiple sets of trigger switches are fixedly installed inside the multiple sets of lubrication boxes. The warning mechanism is provided in multiple sets, and the multiple sets of warning mechanisms are fixedly installed on the front side of the multiple sets of lubrication boxes.

[0013] Furthermore, the warning component also includes: a warning light and a buzzer. The warning light is provided in multiple sets, and the multiple sets of warning lights are fixedly installed inside the multiple sets of warning mechanisms. The buzzer is provided in multiple sets, and the multiple sets of buzzers are fixedly installed inside the multiple sets of warning mechanisms. The buzzer, warning light, trigger switch and power supply inside each set of lubrication box are connected together through a wiring harness to form a switching circuit.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, this invention features a maintenance component that converts the kinetic energy of the robotic arm's swing into lubrication power through a non-continuous meshing design of incomplete gears and drive gears. Lubrication is triggered only when the joint swings to a specific position, reducing grease consumption. Combined with the helical transmission of the threaded screw and drive piston, only a small amount of grease is pushed at a time, precisely controlling the amount injected. The unidirectional transmission structure of the limiting pawl and limiting ratchet prevents grease backflow, ensuring lubrication efficiency. The modular lubrication box can be quickly disassembled and assembled using bolts. During maintenance, simply rotating the threaded screw to reset the piston allows grease to be replenished through the filling port, effectively improving maintenance efficiency.

[0016] Secondly, this invention features a warning component. A trigger switch at the bottom of the lubrication box activates a warning light and buzzer instantly when the transmission piston runs out of grease and presses the switch. This dual audible and visual warning signal quickly attracts attention in the workshop environment, preventing wear on the hinge shaft and jamming of the robotic arm due to lubrication interruption, thus ensuring continuous production.

[0017] This utility model has the advantages of convenient maintenance, real-time monitoring, and quick module assembly and disassembly. After the robotic arm swings to a specific position, the lubrication operation can be completed. Moreover, the amount of lubricating grease is monitored in real time, and a timely reminder is given when the lubricating grease is insufficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the lubrication box structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the lubrication box of this utility model.

[0022] Figure 5 This is a schematic diagram of the output shaft structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the threaded lead screw structure of this utility model.

[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0025] 1. Fixed base; 2. Main body of robotic arm; 201. Hinge shaft; 202. Incomplete gear; 203. Mounting slot; 3. Loading and unloading robotic claw; 4. Lubrication box; 401. Output shaft; 402. Drive gear; 403. Limiting ratchet; 404. Threaded screw; 405. Limiting ratchet; 406. Transmission piston; 407. Trigger switch; 408. Warning mechanism; 4081. Warning light; 4082. Buzzer; 409. Oil inlet; 5. Lubrication pipe. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] Example 1:

[0028] As attached Figure 1 To be continued Figure 6 As shown:

[0029] This utility model provides a safe loading and unloading structure for die-casting equipment, including a fixed base 1, a robotic arm body 2, a hinge shaft 201, a loading and unloading robotic claw 3, a lubrication box 4, lubrication pipes 5, and a maintenance component. The robotic arm body 2 is mounted on the upper part of the fixed base 1. Multiple sets of hinge shafts 201 are provided and installed at the joints inside the robotic arm body 2. The loading and unloading robotic claw 3 is installed at one end of the robotic arm body 2. Multiple sets of lubrication boxes 4 are provided and bolted to the outside of the joints of the robotic arm body 2. Multiple sets of lubrication pipes 5 are provided, with one end of each set of lubrication pipes 5 fixedly connected to the inside of the lubrication boxes 4, and the other end of each set of lubrication pipes 5 fixedly connected to the joints of the robotic arm body 2. The maintenance component is located inside the robotic arm body 2.

[0030] The maintenance components include: a threaded screw 404 and an output shaft 401. Multiple sets of threaded screws 404 are provided, and the multiple sets of threaded screws 404 are rotatably connected to the inside of multiple sets of lubrication boxes 4. Multiple sets of output shafts 401 are provided, and the multiple sets of output shafts 401 are rotatably connected to one end of the multiple sets of threaded screws 404.

[0031] The maintenance components also include: a limit pawl 403 and a limit ratchet 405. The limit pawl 403 is provided in multiple sets, and the multiple sets of limit pawl 403 are respectively installed at one end of the multiple sets of output shafts 401; the limit ratchet 405 is provided in multiple sets, and the multiple sets of limit ratchet 405 are respectively installed at one end of the multiple sets of threaded screws 404.

[0032] The maintenance components also include: incomplete gears 202 and drive gears 402. Multiple sets of incomplete gears 202 are provided, and the multiple sets of incomplete gears 202 are coaxially mounted on one end of multiple sets of hinge shafts 201. Multiple sets of drive gears 402 are provided, and the multiple sets of drive gears 402 are coaxially fixedly mounted on the outside of multiple sets of output shafts 401.

[0033] The maintenance components also include: a mounting groove 203, a transmission piston 406, and an oil inlet 409. The mounting groove 203 is located at the joint of the main body 2 of the robotic arm. Multiple sets of transmission pistons 406 are provided, and the multiple sets of transmission pistons 406 are slidably connected to the inside of multiple sets of lubrication boxes 4. The multiple sets of transmission pistons 406 are threadedly connected to the outside of multiple sets of threaded screws 404. Multiple sets of oil inlets 409 are provided and are installed on the upper part of the multiple sets of lubrication boxes 4.

[0034] The specific usage and function of this embodiment are as follows:

[0035] When the main body 2 of the robotic arm swings during loading and unloading operations, the internal hinge shaft 201 rotates synchronously, and the coaxially mounted incomplete gear 202 rotates periodically accordingly. This ensures that when the robotic arm swings to a critical working position, its tooth profile precisely meshes with the drive gear 402, causing the drive gear 402 to rotate in a specific direction.

[0036] Based on the one-way transmission mechanism composed of the limiting pawl 403 and the limiting ratchet 405, it is ensured that the threaded screw 404 can only rotate when the incomplete gear 202 is driven in the forward direction, effectively preventing the backflow of lubricating grease caused by the reverse rotation of the threaded screw 404. The threaded screw 404 converts the rotational motion into the linear motion of the transmission piston 406 within the lubrication box 4 through the helical transmission principle. As the transmission piston 406 slides axially, the lubricating grease stored in the lubrication box 4 enters the lubrication pipe 5 through the internal flow channel, and is precisely delivered to the surfaces of key moving pairs such as the hinge shaft 201 and bearings through the preset oil injection channels.

[0037] The stroke length of the transmission piston 406 is related to the rotation angle of the incomplete gear 202. Each engagement only drives the piston to push out a small amount of lubricating grease. Lubrication is triggered only when the robotic arm swings to a critical position. The amount of grease injected at one time is controllable, which can reduce the consumption of lubricating grease and significantly reduce operating costs.

[0038] The lubrication box 4 is fixed to the outside of the joint of the robotic arm body 2 via a modular structure connected by bolts. During installation, the lubrication box 4 drives the drive gear 402 to automatically engage with the mounting groove 203 of the robotic arm body 2, achieving rapid alignment and meshing with the incomplete gear 202. During disassembly, the lubrication box 4 can be removed entirely by simply unscrewing the fixing bolts. By rotating the threaded screw 404 counterclockwise with a special tool, the transmission piston 406 can be quickly reset, and then lubricating grease can be replenished through the top oil inlet 409.

[0039] Example 2:

[0040] Based on Example 1, such as Figures 1 to 6 As shown, it also includes: a warning component, which is located inside the lubrication box 4.

[0041] The warning components include: a trigger switch 407 and a warning mechanism 408. Multiple sets of trigger switches 407 are provided, and multiple sets of trigger switches 407 are fixedly installed inside multiple sets of lubrication boxes 4. Multiple sets of warning mechanisms 408 are provided, and multiple sets of warning mechanisms 408 are fixedly installed on the front side of multiple sets of lubrication boxes 4.

[0042] The warning components also include: warning lights 4081 and buzzers 4082. Multiple sets of warning lights 4081 are provided, and multiple sets of warning lights 4081 are fixedly installed inside multiple sets of warning mechanisms 408. Multiple sets of buzzers 4082 are provided, and multiple sets of buzzers 4082 are fixedly installed inside multiple sets of warning mechanisms 408. The buzzers 4082, warning lights 4081, trigger switches 407 inside each lubrication box 4, and the power supply inside the warning mechanism 408 are connected together through a wiring harness to form a switching circuit.

[0043] The specific usage and function of this embodiment are as follows:

[0044] During the operation of the robotic arm body 2, the transmission piston 406 continuously pushes lubricating grease under the drive of the threaded screw 404. As the amount of grease in the lubrication box 4 decreases, the transmission piston 406 gradually moves towards the bottom of the box.

[0045] When the lubricating grease is completely depleted, the transmission piston 406 reaches the preset position and presses the trigger switch 407 installed at the bottom of the lubrication box 4. This causes the trigger switch 407 to pass through the switching circuit, activating the warning light 4081 and buzzer 4082 inside the warning mechanism 408.

[0046] The warning light 4081 illuminates, and the buzzer 4082 emits an audible warning, creating a dual visual and auditory warning signal. This quickly attracts the operator's attention and, through direct warning feedback, prompts staff to replenish grease to the lubrication box 4 via the grease filler port 409.

[0047] The following points should be noted in this article:

[0048] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0049] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0050] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A safe loading and unloading structure for die-casting equipment, characterized in that: The safety loading and unloading structure for a die-casting equipment includes a fixed base (1), a robotic arm body (2), a hinge shaft (201), a loading and unloading robotic claw (3), a lubrication box (4), lubrication pipes (5), a maintenance component, and a warning component. The robotic arm body (2) is mounted on the upper part of the fixed base (1). Multiple sets of hinge shafts (201) are provided and installed at the joints inside the robotic arm body (2). The loading and unloading robotic claw (3) is installed at one end of the robotic arm body (2). Multiple sets of lubrication boxes (4) are provided and bolted to the outside of the joints of the robotic arm body (2). Multiple sets of lubrication pipes (5) are provided, with one end of each set fixedly connected to the inside of the multiple sets of lubrication boxes (4), and the other end of each set fixedly connected to the joints of the robotic arm body (2). The maintenance component is located inside the robotic arm body (2). The warning component is located inside the lubrication box (4).

2. The safety loading and unloading structure for die-casting equipment as described in claim 1, characterized in that: The maintenance component includes: a threaded screw (404) and an output shaft (401). The threaded screw (404) is provided in multiple sets, and the multiple sets of threaded screws (404) are rotatably connected to the inside of multiple sets of lubrication boxes (4). The output shaft (401) is provided in multiple sets, and the multiple sets of output shafts (401) are rotatably connected to one end of the multiple sets of threaded screws (404).

3. The safety loading and unloading structure for die-casting equipment as described in claim 2, characterized in that: The maintenance component also includes: a limiting pawl (403) and a limiting ratchet (405). The limiting pawl (403) is provided in multiple sets, and the multiple sets of limiting pawl (403) are respectively installed at one end of multiple sets of output shafts (401); the limiting ratchet (405) is provided in multiple sets, and the multiple sets of limiting ratchet (405) are respectively installed at one end of multiple sets of threaded screws (404).

4. The safety loading and unloading structure for die-casting equipment as described in claim 2, characterized in that: The maintenance component also includes: an incomplete gear (202) and a drive gear (402). The incomplete gear (202) is provided in multiple sets, and the multiple sets of incomplete gears (202) are coaxially mounted on one end of multiple sets of hinge shafts (201). The drive gear (402) is provided in multiple sets, and the multiple sets of drive gears (402) are coaxially fixedly mounted on the outside of multiple sets of output shafts (401).

5. The safety loading and unloading structure for die-casting equipment as described in claim 2, characterized in that: The maintenance components also include: a mounting groove (203), a transmission piston (406), and an oil inlet (409). The mounting groove (203) is located at the joint of the robotic arm body (2). Multiple sets of transmission pistons (406) are provided, and multiple sets of transmission pistons (406) are slidably connected inside multiple sets of lubrication boxes (4). The multiple sets of transmission pistons (406) are threadedly connected to the outside of multiple sets of threaded screws (404). Multiple sets of oil inlets (409) are provided, and multiple sets of oil inlets (409) are installed on the upper part of multiple sets of lubrication boxes (4).

6. The safety loading and unloading structure for die-casting equipment as described in claim 1, characterized in that: The warning component includes: a trigger switch (407) and a warning mechanism (408). The trigger switch (407) is provided in multiple sets, and the multiple sets of trigger switches (407) are fixedly installed inside the multiple sets of lubrication boxes (4). The warning mechanism (408) is provided in multiple sets, and the multiple sets of warning mechanisms (408) are fixedly installed on the front side of the multiple sets of lubrication boxes (4).

7. The safety loading and unloading structure for die-casting equipment as described in claim 6, characterized in that: The warning assembly also includes a warning light (4081) and a buzzer (4082). The warning light (4081) is provided in multiple sets, and the multiple sets of warning lights (4081) are fixedly installed inside the multiple sets of warning mechanisms (408). The buzzer (4082) is provided in multiple sets, and the multiple sets of buzzers (4082) are fixedly installed inside the multiple sets of warning mechanisms (408). The buzzer (4082), warning light (4081), trigger switch (407) inside each lubrication box (4) and the power supply inside the warning mechanism (408) are connected together by a wiring harness to form a switching circuit.

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