Positioning device for die-casting mold production and processing

Abstract

The application discloses a positioning device for die-casting die production and machining, relates to the technical field of die production and machining positioning tools, and comprises a convex-shaped bottom plate, two position-symmetrical positioning plates are installed on the bottom plate, a positioning mechanism for multidirectional clamping die positioning is installed on the positioning plate, and a driving mechanism for controlling the movement of the positioning plate is installed on the bottom surface of the bottom plate; the electric push rod is connected with the rotating connecting plate and the connecting rod in linkage, the positioning plate is driven to be synchronously close, the buffer plate is matched with the spring and the guide rod for buffering, the sliding support rod drives the guide sliding block and the positioning rod to move, the rollers are multidirectionally abutted and clamped from the four corners of the die, the positioning stability is improved, the problems of machining displacement and positioning deviation are solved, the cleaning plate is driven to slide through the linear motor, the third guide block pushes the cleaning brush to descend to clean the debris on the bottom plate, the second guide block makes the brush ascend to be stored when resetting, the speed reducer drives the cleaning comb to comb the brush, secondary falling of the debris is avoided, and subsequent machining is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of positioning tools for mold production and processing, and in particular to a positioning device for die-casting mold production and processing. Background Technology

[0002] As the core equipment for metal forming and processing, the structural precision of die casting molds directly determines product quality. During the processing, positioning devices are needed to accurately fix the molds, and cutting oil and chips generated during processing must be cleaned up in a timely manner to ensure the continuity of subsequent processing. Firstly, existing positioning devices mostly adopt a split drive structure, mainly composed of a worktable, single-sided or double-sided independent drive components (such as cylinders or ordinary motors), a unidirectional positioning plate, and simple clamping components (such as rigid clamping plates or single rollers). The drive components are directly connected to the positioning plate. Although some devices have slide rails and sliders, they lack a linkage and synchronization mechanism. The positioning components are mostly arranged in one direction, with clamping structures only set on the sides or front and rear ends of the mold, without a four-corner coordinated clamping design. Moreover, the clamping parts are mostly rigid contact or simple elastic buffer (such as a single spring connecting the clamping plate). When the mold passes through... After the material is placed on the worktable by the feeding mechanism, the control system activates the drive components (cylinder extension / retraction or motor rotation) to directly push the single or double-sided positioning plates towards the mold. The positioning plates drive the clamping components to abut against the mold surface, achieving fixation through rigid extrusion or simple elastic pressure. Due to the lack of a linkage mechanism, double-sided drive relies on signals from the control system to synchronously control the drive component's movement. Single-sided drive only uses a single-direction thrust to move the mold closer and position it. During clamping, the mold is prone to displacement due to uneven force, and since there is no targeted fixation at the four corners, displacement is easily generated during processing vibrations. Meanwhile, existing cleaning devices mostly adopt a fixed brush, scraper + linear drive structure, mainly composed of a cleaning rod, fixed cleaning brush, scraper, drive motor, and simple guide rail. The brush is directly fixed to the bottom of the cleaning rod, without a lifting and storage mechanism. The worktable only has a single cleaning channel. Some devices are equipped with a debris collection tank, but lack a self-cleaning component for the brush. The brush and cleaning rod are fixed as one piece, without a targeted debris removal structure. After the mold is processed, the drive motor starts, driving the cleaning rod to slide along the guide rail. The brush and scraper directly contact the worktable surface, sweeping cutting oil and debris into the collection tank. After cleaning, the drive motor reverses, driving the cleaning rod back to its initial position. Since the brush is always in contact with the worktable surface and has no self-cleaning function, the debris remaining on the brush will fall back onto the worktable surface during the resetting process. At the same time, the debris entangled between the brush bristles cannot be cleaned in time. After long-term use, the cleaning effect continues to decline, and it may even scratch the surface of the mold placed later. Therefore, the above problems need to be improved. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a positioning device for die casting mold production and processing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a positioning device for die casting mold production and processing, comprising a convex-shaped base plate, two symmetrically positioned positioning plates mounted on the base plate, a positioning mechanism for multi-directional clamping and positioning of the mold mounted on the positioning plates, a driving mechanism for controlling the movement of the positioning plates mounted on the bottom surface of the base plate, and cleaning mechanisms for cleaning the top surface of the base plate mounted on one side and the top surface of the base plate, respectively.

[0005] Preferably, the driving mechanism includes a rotating connecting plate rotatably connected to the bottom surface of the base plate. Limiting shafts are installed at both the upper and lower positions of the center of the rotating connecting plate. The other ends of the two limiting shafts pass through the rotating connecting plate. The bottom surface of the base plate is provided with two annular limiting grooves that are clearance-fitted with the limiting shafts. One end of the limiting shaft is slidably connected to the base plate through the annular limiting groove. An electric push rod is installed on the bottom surface of the base plate. One end of the piston rod of the electric push rod is connected to the lower end of the positioning plate.

[0006] Preferably, the driving mechanism further includes two rotating connecting rods, one end of each of the two rotating connecting rods being hinged to both ends of a rotating connecting plate, and the other end of each of the two rotating connecting rods being hinged to the center of the bottom surface of two positioning plates. T-shaped slide rails are fixedly connected to the four corners of the bottom surface of the base plate by bolts. Matching T-shaped sliders are slidably connected on the slide rails. The lower end of each positioning plate is engaged and fixed with two sliders, and the sliders and slide rails are connected by ball bearings for rolling connection.

[0007] Preferably, the positioning mechanism includes a guide plate fixedly connected to the top surface of the positioning plate and a buffer plate disposed on the top surface of the positioning plate. Multiple buffer springs are installed between the buffer plate and the guide plate. Multiple guide rods are fixedly connected to the side of the buffer plate facing the guide plate. The multiple guide rods are respectively arranged at the corners of the buffer plate, and the other end of the guide rod slides through the guide plate. The buffer springs are sleeved on the outside of the guide rods. A linear bearing is installed at the connection between the guide rods and the guide plate.

[0008] Preferably, the positioning mechanism further includes two sliding support rods, the bottom ends of which are hinged to the top surface of the guide plate, and one end of each sliding support rod is inclined toward the inner side of the positioning plate. A guide slide is hinged to one end of each sliding support rod. A T-shaped groove is formed on the top surface of the buffer plate. A matching T-shaped slide bar is provided at the bottom end of the guide slide bar. The guide slide bar is slidably connected to the T-shaped groove through the T-shaped slide bar. An L-shaped positioning rod is fixedly connected to the lower end of the guide slide bar. Multiple first buffer rollers are rotatably connected to one side of the positioning rod along its length direction, and a second buffer roller is rotatably connected to one end of the positioning rod.

[0009] Preferably, both the first buffer roller and the second buffer roller are fixedly fitted with heat-insulating sleeves made of high-temperature resistant rubber.

[0010] Preferably, the cleaning mechanism includes a cleaning plate slidably connected to the top surface of the base plate, a third guide block fixedly connected to both sides of one end of the base plate, and a linear motor installed on one side of the base plate. A cleaning rod is inserted into the top of the cleaning plate, and a first guide block is fixedly connected to both ends of the cleaning rod. The first guide block and the third guide block have a matching first oblique section on their opposite surfaces. A first roller is hinged to the top and bottom of the first guide block. A cleaning brush is installed at the bottom of the cleaning rod, and the cleaning brush is located inside the cleaning plate. The lower end of the cleaning rod slides against the two inner walls of the cleaning plate, and damping pads are installed on both sides of the cleaning rod near the two inner walls of the cleaning plate. The output end of the linear motor is fixedly connected to the cleaning plate to drive its sliding.

[0011] Preferably, the cleaning mechanism further includes a second guide block fixedly connected to one side of the other end of the base plate, a reduction motor installed on the other side of the base plate, a recycling trough and a guide trough that are opened on the top surface of the base plate and are interconnected. The second guide block has a second inclined section that matches the first inclined section, and a second roller is hinged to the top of the second guide block. A cylindrical mounting groove is opened at one end of the base plate. A cleaning comb with teeth installed at both ends is rotatably connected in the mounting groove. The output shaft of the reduction motor is fixedly connected to one end of the rotating shaft of the cleaning comb through a coupling. The opening of the recycling trough is located directly above the guide trough.

[0012] Preferably, the lower end of the positioning plate is provided with a snap-fit ​​groove adapted to the slider, the slider is detachably snapped to the positioning plate through the snap-fit ​​groove, and the inner wall of the snap-fit ​​groove is provided with an anti-slip rubber pad.

[0013] Preferably, the bristles of the cleaning brush are made of high-temperature resistant nylon filaments, the bristles of the cleaning brush slide against the top surface of the base plate, and the cleaning brush is detachably connected to the cleaning rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes the linkage between the electric actuator, rotating connecting plate, and rotating connecting rod to facilitate the synchronous movement of two positioning plates along the slide rail towards the center of the base plate, improving the synchronicity and accuracy of the positioning plate movement. This enables the positioning mechanism to initially approach the mold. Furthermore, through the elastic cooperation of the buffer spring and guide rod between the buffer plate and guide plate, combined with the hinged transmission of the sliding support rod and guide slide, the buffer plate facilitates the synchronous inward movement of the positioning rod after contacting the mold. This allows the first and second buffer rollers to form multi-directional contact from the four corners of the mold, improving the comprehensiveness of clamping and the buffer protection. This enables the synchronous clamping and positioning function of the four corners of the mold, ultimately solving the problem of positioning deviation caused by displacement and uneven clamping force during mold processing. 2. This invention utilizes a linear motor and a cleaning plate drive mechanism, combined with the inclined section abutment transmission between the third guide block and the first guide block. This facilitates the cleaning rod to precisely lower the cleaning brush to adhere to the top surface of the base plate, improving the targeting and efficiency of debris cleaning. This enables rapid cleaning of cutting oil and debris from the base plate. Furthermore, the inclined section of the second guide block and the first guide block facilitates the upward retraction of the cleaning brush before resetting. Simultaneously, the rotation of the reduction motor and the cleaning comb comprehensively combs the cleaning brush during retraction, improving the thoroughness of brush cleaning and the safety of resetting. This achieves self-cleaning and residue-free resetting of the cleaning brush, ultimately solving the problem of debris falling onto the base plate during brush resetting and affecting subsequent mold processing. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall appearance and structure of the device of the present invention; Figure 2 This is a bottom view of the overall structure of the device of the present invention; Figure 3 This is a schematic diagram of the base plate structure of the present invention; Figure 4 This is a schematic diagram of the positioning mechanism structure of the present invention; Figure 5 This is a schematic diagram of the positioning mechanism of the present invention from another perspective; Figure 6 This is a schematic cross-sectional view of the first guide block and the third guide block of the present invention; Figure 7 This is a schematic cross-sectional view of the cleaning mechanism of the present invention; Figure 8 This is a schematic diagram of the cleaning comb structure of the present invention; Figure 9For the present invention Figure 1 Enlarged schematic diagram of the structure at part A in the middle; Figure 10 For the present invention Figure 1 Enlarged schematic diagram of the structure of part B in the middle; Figure 11 For the present invention Figure 5 Enlarged schematic diagram of the structure at part C.

[0016] The components in the diagram are numbered as follows: 1. Base plate; 2. Rotating connecting plate; 3. Limiting shaft; 4. Rotating connecting rod; 5. Slider; 6. Positioning plate; 7. Buffer plate; 8. Guide plate; 9. Buffer spring; 10. Guide rod; 11. Sliding support rod; 12. Guide slide; 13. First buffer roller; 14. Second buffer roller; 15. Cleaning plate; 16. Cleaning rod; 17. Cleaning brush; 18. First guide block; 19. First roller; 20. Second guide block; 21. Second roller; 22. Linear motor; 23. Gear motor; 24. Cleaning comb; 25. Recycling trough; 26. Guide groove; 27. Electric push rod; 28. Slide rail; 29. ​​Third guide block. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1: See Figures 1 to 11This invention discloses a positioning device for die-casting mold production and processing, comprising a convex-shaped base plate 1 located between two conveyor belts for automatic mold loading (this part pertains to loading and will not be described in detail here; only the position of the base plate 1 needs to be understood). Two symmetrically positioned positioning plates 6 are mounted on the base plate 1. These positioning plates 6 serve as the positioning body of the device, responsible for driving the positioning mechanism to move towards the center of the base plate 1, thereby moving the mold towards the center. A positioning mechanism for multi-directional mold clamping and positioning is mounted on the positioning plates 6, facilitating simultaneous clamping and positioning of the four corners of the mold to prevent displacement during processing. A drive mechanism for controlling the movement of the positioning plates 6 is mounted on the bottom surface of the base plate 1, serving as the positioning mechanism. The auxiliary system ensures the synchronous operation of the two positioning mechanisms and adjusts the movement distance of the positioning mechanisms. Cleaning mechanisms are installed on one side and the top surface of the base plate 1 to clean the top surface of the base plate 1. These cleaning mechanisms facilitate the removal of excess cutting oil and debris generated during mold processing, and also perform secondary cleaning on the cleaning brush 17 to prevent debris from falling back onto the top surface of the base plate 1 when the brush 17 resets. The drive mechanism includes a rotating connecting plate 2 rotatably connected to the bottom surface of the base plate 1. Through the cooperation of the rotating connecting plate 2 and the rotating connecting rod 4, a bidirectional hinged robotic arm is formed. When the rotating connecting plate 2 rotates clockwise, one end of the rotating connecting rod 4 pulls the positioning plate 6 to the center position; conversely, it moves it to both sides (the rotation direction of the rotating connecting plate 2 is indicated by the following). Figure 2(For reference only); Limiting shafts 3 are installed at both the upper and lower positions of the center of the rotating connecting plate 2. Through the cooperation of the limiting shafts 3 and the annular limiting grooves, the rotating connecting plate 2 is ensured to always rotate around the center point, controlling the rotation path of the rotating connecting plate 2. The other ends of both limiting shafts 3 pass through the rotating connecting plate 2, and the bottom surface of the base plate 1 has two annular limiting grooves that are clearance-fitted with the limiting shafts 3. One end of the limiting shaft 3 is slidably connected to the base plate 1 through the annular limiting grooves. An electric push rod 27 is installed on the bottom surface of the base plate 1. The electric push rod 27 facilitates the movement of one side of the positioning plate 6 towards the center of the base plate 1, thereby synchronously moving both positioning plates 6 under the cooperation of the rotating connecting plate 2 and the rotating connecting rod 4. One end of the piston rod of the electric push rod 27 is connected to the lower end of the positioning plate 6, driving the motor... The structure also includes two rotating connecting rods 4. One end of each rotating connecting rod 4 is hinged to both ends of the rotating connecting plate 2, and the other end of each rotating connecting rod 4 is hinged to the center of the bottom surface of the two positioning plates 6. T-shaped slide rails 28 are fixedly connected to the four corners of the bottom surface of the base plate 1 by bolts. The T-shaped slide rails 28 and the matching sliders 5 ensure the movement trajectory of the positioning plate 6 on the base plate 1. At the same time, the installation of ball bearings greatly reduces the friction when the sliders 5 slide, reduces the load on the piston rod when the electric push rod 27 extends and retracts, and extends the service life of the electric push rod 27. Matching T-shaped sliders 5 are slidably connected on the slide rails 28. The lower end of each positioning plate 6 is fixedly engaged with two sliders 5, and the sliders 5 and the slide rails 28 are connected by ball bearings to achieve rolling connection. Example 2: The technical solution is basically the same as that of Example 1, except that, as Figure 2 , Figure 4 , Figure 5As shown; the positioning mechanism includes a guide plate 8 fixedly connected to the top surface of the positioning plate 6 and a buffer plate 7 disposed on the top surface of the positioning plate 6. The fixedly installed guide plate 8 serves as an auxiliary plate when the buffer plate 7 moves, ensuring the direction of movement of the buffer plate 7. Multiple buffer springs 9 are installed between the buffer plate 7 and the guide plate 8. Multiple guide rods 10 are fixedly connected to the side of the buffer plate 7 facing the guide plate 8. Through the cooperation of the buffer springs 9 and the guide rods 10, the buffer plate 7 is facilitated to move towards the guide plate 8 due to the reaction force brought by the abutment, while simultaneously compressing the buffer springs 9. The guide rods 10 are within the guide plate 8. Multiple guide rods 10 are arranged at the corners of the buffer plate 7, with the other end of each guide rod 10 sliding through the guide plate 8. A buffer spring 9 is sleeved on the outside of the guide rod 10. A linear bearing is installed at the connection between the guide rod 10 and the guide plate 8. The positioning mechanism also includes two sliding support rods 11. When the buffer plate 7 moves towards the guide plate 8, one end of the sliding support rod 11 rotates, and the other end moves inward due to the reduced distance between the buffer plate 7 and the guide plate 8, thereby driving the two guide slides 12 to move towards the center of the positioning plate 6. The bottom ends of both sliding support rods 11 are aligned with the guide plate 8. The top surfaces of the mold are hinged together, and one end of each of the two sliding support rods 11 is inclined toward the inside of the positioning plate 6. One end of each sliding support rod 11 is hinged to a guide slide 12. When the guide slide 12 moves toward the center, it is clamped inward by the positioning rod. At this time, the second buffer roller 14 abuts against the two sides of the mold. Meanwhile, since the first buffer roller 13 abuts against the other two sides of the mold first, the first buffer roller 13 and the second buffer roller 14 clamp the four sides of the mold from the four corners. At the same time, when the second buffer roller 14 drives the mold to move toward the center, the first buffer roller 13 can prevent the positioning rod from contacting the mold. Friction occurs between the periphery; a T-shaped groove is provided on the top surface of the buffer plate 7, and a matching T-shaped slide is provided at the bottom of the guide slide 12. The guide slide 12 is slidably connected to the T-shaped groove through the T-shaped slide. An L-shaped positioning rod is fixedly connected to the lower end of the guide slide 12. Multiple first buffer rollers 13 are equidistantly connected to one side of the positioning rod along the length direction, and a second buffer roller 14 is rotatably connected to one end of the positioning rod. A heat-insulating sleeve made of high-temperature resistant rubber is fixedly sleeved on the periphery of the first buffer roller 13 and the second buffer roller 14. The high-temperature resistant material used here is a glass fiber silicone composite sleeve. Example 3: The technical solution is basically the same as that of Example 1, except that, as Figure 6 , Figure 7 , Figure 8As shown; the cleaning mechanism includes a cleaning plate 15 slidably connected to the top surface of the base plate 1, third guide blocks 29 fixedly connected to both sides of one end of the base plate 1, and a linear motor 22 installed on one side of the base plate 1 (the first guide block 18 and the second guide block 20 are right-angled triangles, and the third guide block 29 is a parallelogram). The cleaning plate 15 serves as the main carrier of the cleaning mechanism, driving the cleaning brush 17 to move and sweep the debris on the base plate 1 into the collection trough 25. The linear motor 22 serves as the driving component, driving the cleaning plate 15 to slide in a straight line. A cleaning rod 16 is inserted into the top of the cleaning plate 15, which facilitates the movement of the first guide block 18, the second guide block 20, and the third guide block 29. With the cooperation of the cleaning rod 16, the cleaning brush 17 is raised and lowered. When cleaning, the cleaning brush 17 descends to clean the bottom surface of the base plate 1. When resetting, the cleaning brush 17 is stored in the cleaning plate 15 to prevent the cleaning brush 17 from contacting the base plate 1 during resetting, which would cause residual debris on the brush to contact the top surface of the base plate 1 again and remain on the top surface of the base plate 1, causing damage to the next mold being processed. Both ends of the cleaning rod 16 are fixedly connected to the first guide block 18. The first guide block 18 and the third guide block 29 have matching first inclined sections on their opposite surfaces. When the two first inclined sections contact each other, the third guide block 29 pushes the first guide block 18 downward, which in turn drives the cleaning brush 17 downward with the cooperation of the cleaning rod 16. The first roller 19 contacts the top surface of the base plate 1. During this process, the first roller 19 contacts one of the first inclined sections, reducing the friction between the two inclined sections and making the lifting and lowering of the cleaning brush 17 smoother. The first guide block 18 is hinged to the top and bottom of the first roller 19. The cleaning brush 17 is installed at the bottom of the cleaning rod 16. The cleaning brush 17 can clean the debris on the top surface of the base plate 1 to the collection tank 25. The cleaning brush 17 is located inside the cleaning plate 15. The lower end of the cleaning rod 16 slides against the two inner walls of the cleaning plate 15. Damping pads are installed on both sides of the cleaning rod 16 and the surfaces close to the two inner walls of the cleaning plate 15. By adding damping pads, the friction between the cleaning plate 15 and the cleaning rod 16 is increased, avoiding... When the cleaning brush 17 cleans the base plate 1, the cleaning brush 17 rises; the output end of the linear motor 22 is fixedly connected to the cleaning plate 15 to drive it to slide. The cleaning mechanism also includes a second guide block 20 fixedly connected to one side of the other end of the base plate 1, a reduction motor 23 installed on the other side of the base plate 1, a recycling trough 25 and a guide trough 26 opened on the top surface of the base plate 1 and connected to each other. The reduction motor 23 facilitates the rotation of the cleaning comb 24. Then, when the cleaning brush 17 sweeps the debris into the recycling trough 25, the debris on the cleaning brush 17 is combed off by combing, reducing the amount of debris residue in the cleaning brush 17 and reducing the probability of debris falling onto the top surface of the base plate 1 when the cleaning plate 15 is reset.The second guide block 20 has a second inclined section that matches the first inclined section. When the cleaning plate 15 moves to the position of the second guide block 20, the second inclined section contacts the first inclined section, guiding the cleaning brush 17 to rise and be stored inside the cleaning plate 15. At the same time, the reduction motor 23 drives the cleaning comb 24 to rotate and comb off the debris on the cleaning brush 17. Since the cleaning brush 17 is made of a soft material, it will tilt and deform when it comes into contact with the cleaning comb 24. The cleaning brush 17 between the two cleaning combs 24 will deform to both sides and be combed off by the cleaning comb 24, leaving no dead corners in the cleaning. The second guide block 20 is hinged to a second roller 21, which mainly... The function is the same as the first roller 19 mentioned above; a cylindrical mounting groove is opened at one end of the base plate 1, and a cleaning comb 24 with comb teeth installed at both ends is rotatably connected in the mounting groove. The output shaft of the reduction motor 23 is fixedly connected to one end of the rotating shaft of the cleaning comb 24 through a coupling. The groove opening of the recycling groove 25 is located directly above the guide groove 26. A snap-fit ​​groove adapted to the slider 5 is opened at the lower end of the positioning plate 6. The slider 5 is detachably snap-fitted to the positioning plate 6 through the snap-fit ​​groove, and an anti-slip rubber pad is installed on the inner wall of the snap-fit ​​groove. The bristles of the cleaning brush 17 are made of high temperature resistant nylon filaments. The bristles of the cleaning brush 17 slide against the top surface of the base plate 1, and the cleaning brush 17 is detachably connected to the cleaning rod 16. Working principle: In this embodiment, the present invention also proposes a method for using a positioning device for die-casting mold production and processing, including the following steps: Step 1: Connect the device to electricity and connect it to the CNC terminal. At this time, the mold is transported to the center of the top surface of the base plate 1 by the conveyor belt. The positioning plate 6 is in the initial position on both sides of the base plate 1. Then, the piston rod of the electric push rod 27 extends and pushes the positioning plate 6 on one side to slide along the slide rail 28 towards the center of the base plate 1. The positioning plate 6 drives the rotating connecting plate 2 to rotate around the center of the rotating connecting plate 2 through the rotating connecting rod 4, and rotates clockwise with the limiting shaft 3. The other end of the rotating connecting plate 2 pulls the positioning plate 6 on the other side towards the center through the rotating connecting rod 4, so as to realize the synchronous approach of the two positioning plates 6. Step 2, multi-directional clamping and positioning: As the positioning plate 6 moves, the buffer plate 7 first contacts the two sides of the mold. The mold generates a reaction force on the buffer plate 7, pushing the buffer plate 7 towards the guide plate 8 and compressing the buffer spring 9. At the same time, the guide rod 10 slides along the guide plate 8. During the movement of the buffer plate 7, one end of the sliding support rod 11 rotates, causing the guide slide 12 to slide along the T-shaped groove of the buffer plate 7 towards the inside of the positioning plate 6. The guide slide 12 drives the positioning rod to move synchronously until the first buffer roller 13 on the positioning rod abuts against the other two sides of the mold, and the second buffer roller 14 abuts against the corner of the mold. Multi-directional clamping and positioning is achieved from the four corners of the mold through the first buffer roller 13 and the second buffer roller 14. The heat-insulating sleeve made of high-temperature resistant rubber can prevent the high temperature of the mold from damaging the rollers. After the processing is completed, the piston rod of the electric push rod 27 shortens, driving the positioning plate 6 to reset to both sides. The positioning mechanism releases the clamping of the mold, and the mold is transported to the next process by the conveyor belt. Step 3: Cleaning the base plate 1. The linear motor 22 is started, driving the cleaning plate 15 to slide along the top surface of the base plate 1. When the cleaning plate 15 moves to the position of the third guide block 29, the first inclined section of the first guide block 18 contacts the first inclined section of the third guide block 29. Under the rolling cooperation of the first roller 19, the third guide block 29 pushes the first guide block 18 to move downward, causing the cleaning rod 16 and the cleaning brush 17 to descend, so that the bristles of the cleaning brush 17 slide against the top surface of the base plate 1. The damping pad ensures that the cleaning brush 17 remains in a descending state during the cleaning process, sweeping the cutting oil and debris on the top surface of the base plate 1 towards the guide groove 26, and falling into the recycling tank 25 through the guide groove 26. At the same time, excess cutting oil flows to the recycling tank 25 through the guide groove 26. The cutting oil and debris in the recycling tank 25 can be filtered and cleaned for reuse. Step four, brush cleaning and reset: When the cleaning plate 15 moves to the position of the second guide block 20, the first inclined section of the first guide block 18 contacts the second inclined section of the second guide block 20. Under the rolling cooperation of the second roller 21, the second guide block 20 pushes the first guide block 18 upward, causing the cleaning brush 17 to rise and be stored in the cleaning plate 15. At the same time, the reduction motor 23 starts, driving the cleaning comb 24 to rotate, combing the cleaning brush 17 during the rising process, combing off the residual debris on the bristles and letting it fall into the recycling tank 25. Then, the linear motor 22 drives the cleaning plate 15 to reset to the initial position, disconnects the power, and completes the entire cleaning process.

[0019] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A positioning device for die-casting mold production and processing, comprising a convex-shaped base plate (1), characterized in that: Two symmetrically positioned positioning plates (6) are installed on the base plate (1). The positioning plates (6) are equipped with positioning mechanisms for multi-directional clamping of mold positioning. The bottom surface of the base plate (1) is equipped with a driving mechanism for controlling the movement of the positioning plates (6). Cleaning mechanisms for cleaning the top surface of the base plate (1) are installed on one side and the top surface of the base plate (1).

2. The positioning device for die-casting mold production and processing according to claim 1, characterized in that: The driving mechanism includes a rotating connecting plate (2) rotatably connected to the bottom surface of the base plate (1). Limiting shafts (3) are installed at the upper and lower positions of the center of the rotating connecting plate (2). The other ends of the two limiting shafts (3) pass through the rotating connecting plate (2). The bottom surface of the base plate (1) is provided with two annular limiting grooves that are clearance-fitted with the limiting shafts (3). One end of the limiting shaft (3) is slidably connected to the base plate (1) through the annular limiting groove. An electric push rod (27) is installed on the bottom surface of the base plate (1). One end of the piston rod of the electric push rod (27) is connected to the lower end of the positioning plate (6).

3. The positioning device for die-casting mold production and processing according to claim 2, characterized in that: The driving mechanism also includes two rotating connecting rods (4). One end of each of the two rotating connecting rods (4) is hinged to both ends of the rotating connecting plate (2), and the other end of each of the two rotating connecting rods (4) is hinged to the center of the bottom surface of the two positioning plates (6). T-shaped slide rails (28) are fixedly connected to the four corners of the bottom surface of the base plate (1) by bolts. Matching T-shaped sliders (5) are slidably connected on the slide rails (28). The lower end of each positioning plate (6) is locked and fixed to two sliders (5), and the sliders (5) and the slide rails (28) are connected by ball bearings.

4. The positioning device for die-casting mold production and processing according to claim 1, characterized in that: The positioning mechanism includes a guide plate (8) fixedly connected to the top surface of the positioning plate (6) and a buffer plate (7) disposed on the top surface of the positioning plate (6). Multiple buffer springs (9) are installed between the buffer plate (7) and the guide plate (8). Multiple guide rods (10) are fixedly connected to the side of the buffer plate (7) facing the guide plate (8). The multiple guide rods (10) are respectively arranged at the corners of the buffer plate (7), and the other end of the guide rod (10) slides through the guide plate (8). The buffer springs (9) are sleeved on the outside of the guide rods (10). A linear bearing is installed at the connection between the guide rods (10) and the guide plate (8).

5. The positioning device for die-casting mold production and processing according to claim 4, characterized in that: The positioning mechanism also includes two sliding rods (11). The bottom ends of the two sliding rods (11) are hinged to the top surface of the guide plate (8), and one end of the two sliding rods (11) is inclined towards the inside of the positioning plate (6). One end of the sliding rod (11) is hinged to a guide slide (12). The top surface of the buffer plate (7) is provided with a T-shaped groove. The bottom end of the guide slide (12) is provided with a matching T-shaped slide bar. The guide slide (12) is slidably connected to the T-shaped groove through the T-shaped slide bar. The lower end of the guide slide (12) is fixedly connected to an L-shaped positioning rod. One side of the positioning rod is equidistantly connected to multiple first buffer rollers (13) along the length direction, and one end of the positioning rod is rotatably connected to a second buffer roller (14).

6. The positioning device for die-casting mold production and processing according to claim 5, characterized in that: The first buffer roller (13) and the second buffer roller (14) are both fixedly fitted with heat-insulating sleeves made of high-temperature resistant rubber.

7. The positioning device for die-casting mold production and processing according to claim 1, characterized in that: The cleaning mechanism includes a cleaning plate (15) slidably connected to the top surface of the base plate (1), a third guide block (29) fixedly connected to both sides of one end of the base plate (1), and a linear motor (22) installed on one side of the base plate (1). A cleaning rod (16) is inserted into the top of the cleaning plate (15), and a first guide block (18) is fixedly connected to both ends of the cleaning rod (16). The first guide block (18) and the third guide block (29) have a first oblique section that matches each other on their opposite surfaces. The guide block (18) is hinged to the top and bottom of the first roller (19). The bottom of the cleaning rod (16) is equipped with a cleaning brush (17). The cleaning brush (17) is located inside the cleaning plate (15). The lower end of the cleaning rod (16) slides against the two inner walls of the cleaning plate (15). Damping pads are installed on both sides of the cleaning rod (16) and the two inner walls of the cleaning plate (15). The output end of the linear motor (22) is fixedly connected to the cleaning plate (15) to drive it to slide.

8. A positioning device for die-casting mold production and processing according to claim 7, characterized in that: The cleaning mechanism also includes a second guide block (20) fixedly connected to one side of the other end of the base plate (1), a reduction motor (23) installed on the other side of the base plate (1), a recycling trough (25) and a guide trough (26) opened on the top surface of the base plate (1) and connected to each other. The second guide block (20) has a second inclined section that matches the first inclined section, and a second roller (21) is hinged to the top of the second guide block (20). A cylindrical mounting groove is opened at one end of the base plate (1), and a cleaning comb (24) with comb teeth installed at both ends is rotatably connected in the mounting groove. The output shaft of the reduction motor (23) is fixedly connected to one end of the rotating shaft of the cleaning comb (24) through a coupling. The opening of the recycling trough (25) is located directly above the guide trough (26).

9. A positioning device for die-casting mold production and processing according to claim 3, characterized in that: The lower end of the positioning plate (6) is provided with a snap-fit ​​groove that is compatible with the slider (5). The slider (5) is detachably snapped to the positioning plate (6) through the snap-fit ​​groove, and the inner wall of the snap-fit ​​groove is provided with an anti-slip rubber pad.

10. A positioning device for die-casting mold production and processing according to claim 7, characterized in that: The bristles of the cleaning brush (17) are made of high-temperature resistant nylon filaments. The bristles of the cleaning brush (17) slide against the top surface of the base plate (1), and the cleaning brush (17) and the cleaning rod (16) are detachably connected.

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