Double-closed type cutter precision positioning mold frame device

Abstract

The invention discloses a double-closed type cutter precision positioning mold frame device, belongs to the technical field of machining, aims at solving the problems that an existing device depends on import, the cost is too high, and the forming stability is low, and comprises a guide column lower fixing plate and a guide column upper fixing plate. A plurality of guide columns are fixedly connected between the guide column lower fixing plate and the guide column upper fixing plate, two first air cylinder fixing plates are fixedly connected to the top of the guide column lower fixing plate, and first core rod air cylinders are fixedly connected to the tops of the two first air cylinder fixing plates; by optimizing the structure, dependence on expensive imported equipment is reduced, and compared with traditional foreign high-end machine tool equipment, the mold base mechanism can greatly reduce the equipment size and cost, so that domestic enterprises can achieve the purpose of improving the production efficiency with low investment, and the production cost is reduced. And a special cutter meeting the high-precision requirement is produced, and the high cost performance is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a double-closed tool precision positioning mold frame device. Background Art

[0002] Machining is the process of using various mechanical equipment and tools to process raw materials into parts with specific shapes, sizes and surface quality through cutting, grinding, milling, drilling, etc. Machining is widely used in many industries such as automobile manufacturing, aerospace, electronic products, mold manufacturing, energy, etc. Tool forming molds are molding equipment specially used to manufacture precision parts such as tools and molds. It plays a vital role in the production process. Tool forming molds are usually used to form and press special tools or molds under high precision and high efficiency.

[0003] At present, the equipment used for special tool forming in the domestic market mainly relies on imported high-end machines. Although these equipment have certain advantages in forming accuracy, their cost is too high, which seriously restricts the production capacity and market competitiveness of domestic enterprises. Especially for tools and mold products that require high-precision and high-efficiency forming, the technical advantages of imported equipment have not been effectively popularized in the domestic market, resulting in technical bottlenecks and technical dependence; in addition, the existing imported equipment is usually more complex in design, requiring frequent debugging and maintenance, and the mold frame structure in the existing technology is mostly based on traditional mechanical design, which is difficult to meet the modern high-precision forming requirements. Especially in the process of tool manufacturing, the precision of forming and pressing, the quality of the product surface, and the stability during the forming process are all extremely important technical difficulties. Traditional mold frame design is often difficult to achieve precise control in these aspects.

[0004] Therefore, a double-enclosed tool precision positioning mold frame device is needed to solve the problems of high cost and low molding stability of the device in the prior art, which are dependent on imports. Summary of the invention

[0005] The object of the present invention is to provide a double-enclosed tool precision positioning mold frame device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-closed tool precision positioning mold frame device, comprising a guide column lower fixing plate and a guide column upper fixing plate, a plurality of guide columns are fixedly connected between the guide column lower fixing plate and the guide column upper fixing plate, two first cylinder fixing plates are fixedly connected to the top of the guide column lower fixing plate, the tops of the two first cylinder fixing plates are fixedly connected to the first core rod cylinder, the output ends of the two first core rod cylinders are fixedly connected to the second cylinder fixing plates, the top of the second cylinder fixing plate is fixedly connected to the second core rod cylinder, the output end of the second core rod cylinder is fixedly connected to the core rod fixing plate, the top of the core rod fixing plate is fixedly connected to the core rod, and the top of the second cylinder fixing plate is provided with a cylinder adjustment group;

[0007] The top of the guide column lower fixed plate is fixedly connected to two lower punch force shafts, the tops of the two lower punch force shafts are fixedly connected to the lower punch fixed plates, the top of the lower punch fixed plate is fixedly connected to the lower punch, the top of the guide column lower fixed plate is fixedly connected to two lower model support columns, the tops of the two lower model support columns are fixedly connected to the lower model fixed plates, a lower fixed model is arranged inside the lower model fixed plate, and a feed plate is arranged on the top of the lower fixed model;

[0008] An upper punch fixing plate is fixedly connected to the outer walls of the plurality of guide columns near the top, an upper punch output fixing surface is fixedly connected to the top of the upper punch fixing plate, an upper punch is fixedly connected to the bottom of the upper punch fixing plate, an upper model fixing plate is fixedly connected to the outer walls of the plurality of guide columns near the bottom of the upper punch, an upper movable model is arranged inside the upper model fixing plate, and two upper model output shafts are fixedly connected to the top of the upper movable model.

[0009] It should be noted in the solution that an adjustable connection structure is adopted between the lower fixing plate of the guide post and the upper fixing plate of the guide post.

[0010] It is further worth mentioning that the core rod is connected to the core rod fixing plate via a bearing.

[0011] It should be further explained that the lower model support column is made of wear-resistant material.

[0012] As a preferred implementation, a plurality of fixing holes are provided on the lower mold fixing plate.

[0013] As a preferred embodiment, the feed plate is designed to be angle-adjustable.

[0014] As a preferred implementation, a buffer spring is provided between the upper mold fixing plate and the upper movable mold.

[0015] As a preferred implementation manner, the lower punch output shaft and the upper model output shaft are synchronous control devices.

[0016] As a preferred implementation, the upper model output shaft and the upper model fixing plate are flexibly connected by shock-absorbing rubber.

[0017] Compared with the prior art, the double-enclosed tool precision positioning mold frame device provided by the present invention has at least the following beneficial effects:

[0018] (1) By optimizing the structure, the dependence on expensive imported equipment is reduced. Compared with traditional foreign high-end machine tool equipment, the mold frame mechanism of the present invention can greatly reduce the equipment volume and cost, so that domestic enterprises can produce special tools that meet high-precision requirements with lower investment, which has a higher cost performance. At the same time, the mechanism realizes automatic operation through the set motion trajectory and the robot automatic removal system, reducing manual intervention. The automated production line not only improves production efficiency, but also reduces human operation errors, reduces labor intensity, and improves the work efficiency and stability of the overall production line.

[0019] (2) Through the precise design of the upper and lower models, a repeatable positioning accuracy of up to ±0.001mm can be achieved, ensuring the stability and consistency of the tool during each molding process. This ultra-high precision positioning can effectively avoid the errors that may occur in the traditional mold molding process, improve the quality of the product and the processing efficiency, and is particularly suitable for special tools that require high-precision molding; at the same time, the molded product has no parting line, which is crucial for the production of precision tools. The presence of the parting line will affect the surface quality and cutting performance of the product. The present invention realizes the molding of products without parting lines through a double closed structure and precise mold frame design, ensuring the smoothness and consistency of the tool surface, and improving the processing performance and service life of the product;

[0020] (3) The upper model output shaft and the upper model fixing plate are flexibly connected by shock-absorbing rubber, which can effectively reduce the error caused by equipment vibration and ensure stable cutting force during processing. The shock-absorbing design greatly improves the stability during long-term high-frequency operation and helps to extend the service life of the equipment. At the same time, during the molding process, the powder is completed by precise filling and extrusion, which ensures the uniform distribution and consistency of the powder and avoids the problem of unstable molding quality caused by uneven filling. Each round of molding process ensures the high quality standards of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0022] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure from a third viewing angle of the present invention;

[0024] Figure 4 It is a cross-sectional view of the present invention.

[0025] In the figure: 1. lower fixing plate of guide column; 2. upper fixing plate of guide column; 3. guide column; 4. fixing plate of first cylinder; 5. first core rod cylinder; 6. fixing plate of second cylinder; 7. second core rod cylinder; 8. fixing plate of core rod; 9. core rod; 10. cylinder adjustment group; 11. lower punch output shaft; 12. fixing plate of lower punch; 13. lower punch; 14. lower model support column; 15. fixing plate of lower model; 16. lower fixed model; 17. feed plate; 18. fixing plate of upper punch; 19. fixing surface of upper punch output force; 20. upper punch; 21. fixing plate of upper model; 22. upper movable model; 23. output shaft of upper model. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention will be further described below in conjunction with the embodiments.

[0028] See also Figure 1-4 The present invention provides a double-closed tool precision positioning mold frame device, including a guide column lower fixing plate 1 and a guide column upper fixing plate 2, a plurality of guide columns 3 are fixedly connected between the guide column lower fixing plate 1 and the guide column upper fixing plate 2, two first cylinder fixing plates 4 are fixedly connected to the top of the guide column lower fixing plate 1, the tops of the two first cylinder fixing plates 4 are fixedly connected to the first core rod cylinder 5, the output ends of the two first core rod cylinders 5 are fixedly connected to the second cylinder fixing plate 6, the top of the second cylinder fixing plate 6 is fixedly connected to the second core rod cylinder 7, the output end of the second core rod cylinder 7 is fixedly connected to the core rod fixing plate 8, the top of the core rod fixing plate 8 is fixedly connected to the core rod 9, and the top of the second cylinder fixing plate 6 is provided with a cylinder adjustment group 10;

[0029] The top of the guide column lower fixed plate 1 is fixedly connected with two lower punch output shafts 11, the tops of the two lower punch output shafts 11 are fixedly connected with a lower punch fixed plate 12, the top of the lower punch fixed plate 12 is fixedly connected with a lower punch 13, the top of the guide column lower fixed plate 1 is fixedly connected with two lower model support columns 14, the tops of the two lower model support columns 14 are fixedly connected with a lower model fixed plate 15, a lower fixed model 16 is arranged inside the lower model fixed plate 15, and a feed plate 17 is arranged on the top of the lower fixed model 16;

[0030] An upper punch fixing plate 18 is fixedly connected to the outer walls of multiple guide columns 3 near the top, an upper punch output fixing surface 19 is fixedly connected to the top of the upper punch fixing plate 18, an upper punch 20 is fixedly connected to the bottom of the upper punch fixing plate 18, an upper model fixing plate 21 is fixedly connected to the outer walls of multiple guide columns 3 near the bottom of the upper punch 20, an upper movable model 22 is arranged inside the upper model fixing plate 21, and two upper model output shafts 23 are fixedly connected to the top of the upper movable model 22.

[0031] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth mentioning that an adjustable connection structure is adopted between the lower fixing plate 1 of the guide column and the upper fixing plate 2 of the guide column. The adjustable connection structure allows the distance between the lower fixing plate 1 of the guide column and the upper fixing plate 2 of the guide column to be fine-tuned according to specific needs. This design can ensure that the mold can adjust its accuracy according to different working conditions during assembly and operation, optimize the stability of the molding process, and especially in the production of ultra-precision molds, ensure that the repeat positioning accuracy reaches ±0.001mm; the adjustable structure enables the equipment to adapt to the molding needs of tools or molds of different sizes and shapes, and has greater adaptability, especially in the production process of processing special tools, it can be quickly adjusted according to different mold requirements, thereby avoiding the cumbersome process of replacing the entire equipment for different molds; the adjustable connection structure enables the equipment to be quickly adjusted or repaired when there are accuracy problems or maintenance is required, without the need for complicated disassembly and reconstruction of the entire equipment, which can greatly improve the maintenance efficiency of the equipment and reduce downtime.

[0032] Further as Figure 4 As shown, it is worth mentioning that the core rod 9 is connected to the core rod fixing plate 8 through a bearing. The use of the bearing can significantly reduce the friction between the core rod 9 and the core rod fixing plate 8, and reduce the wear of the equipment. The core rod 9 is often subjected to greater pressure and frequent movement during operation. The bearing can effectively reduce the friction of direct contact, thereby extending the service life of the equipment and reducing the maintenance frequency; the use of the bearing can maintain the smooth movement of the core rod 9 and ensure that the core rod 9 does not deviate or bend during movement, which is very critical for maintaining the high-precision positioning and stability of the entire mold frame device, especially in ultra-precision molding operations, to ensure the accuracy of each mold closing and molding operation; the bearing can disperse the pressure between the core rod 9 and the core rod fixing plate 8, especially under heavy loads, the bearing provides better load capacity, which means that under greater pressure and stress, the equipment can still maintain its function and performance, and prevent deformation or damage due to excessive load.

[0033] Further as Figure 1 and Figure 2As shown, it is worth specifically stating that the lower model support column 14 is made of wear-resistant material, and the wear-resistant material is made of tungsten steel, which has strong wear resistance and can withstand long-term use without being easily worn. The lower model support column 14 needs to withstand a large amount of force and friction in long-term operation. The use of wear-resistant materials can effectively extend the service life of the support column and reduce the need for frequent replacement of parts, thereby reducing maintenance costs; wear-resistant materials can maintain good performance in high-pressure and high-frequency operations, and reduce the risk of loosening or deformation of parts due to wear. For equipment that requires precise positioning and high-load work, the stability of the support column is crucial, and wear-resistant materials provide better load capacity and impact resistance; because wear-resistant materials can extend the service life of the support column, the operating cost of the equipment can be reduced. Even if the initial cost of the support column is high, the cost in long-term use can be significantly reduced by reducing the frequency of maintenance and replacement.

[0034] Further as Figure 1 and Figure 2 As shown, it is worth explaining in detail that a plurality of fixing holes are provided on the lower model fixing plate 15, and the plurality of fixing holes provide more fixing points, which can distribute the force more evenly, thereby improving the stability of the entire system; the plurality of fixing holes makes the installation and adjustment of the lower model fixing plate 15 more flexible, and different hole positions can be selected according to actual needs to adjust the position or angle of the components to achieve the optimal working state; by distributing a plurality of fixing holes, the pressure can be effectively dispersed, the local stress concentration can be reduced, the service life of the equipment can be extended, and structural damage or deformation caused by local overload can be avoided; the plurality of fixing holes provide more precise positioning options, which can ensure the accurate positioning of the lower model fixing plate 15, improve the assembly accuracy of the mold, and ensure the quality of the molded product.

[0035] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the feed plate 17 is designed with an adjustable angle. By adjusting the angle of the feed plate 17, the inflow method of the powder can be optimized according to different mold shapes and filler requirements, ensuring that the filler is uniform and free of bubbles, and avoiding material shortages or irregular filling phenomena, which is crucial to the quality of the molded products, especially in precision mold applications; the feed plate 17 with an adjustable angle can quickly adjust the feed direction and angle according to the production requirements of different products, reducing the debugging time and improving the flexibility and production efficiency of the production process; the mold design and product shape may vary due to different production requirements, and the adjustability of the angle of the feed plate 17 enables it to adapt to various mold structures, especially in complex molding processes, to ensure that the powder is evenly and effectively filled into the mold cavity.

[0036] Further as Figure 1 and Figure 4 As shown, it is worth explaining in detail that a buffer spring is arranged between the upper model fixing plate 21 and the upper movable model 22, and the buffer spring can effectively absorb the movement impact and vibration between the upper model fixing plate 21 and the upper movable model 22, especially in the process of rapid operation, which helps to reduce the direct collision force between the models and prevent equipment damage or precision error. Through the buffering effect of the buffer spring, the mechanical vibration generated by the equipment during operation can be slowed down, so that the precision of precision positioning and repeated positioning can be further improved, and the molding error caused by vibration can be reduced.

[0037] Further as Figure 1 As shown, it is worth specifying that the lower punch output shaft 11 and the upper model output shaft 23 are synchronous control devices, which can ensure that the movements of the upper punch 20 and the lower punch 13 are consistent, thereby reducing the deviation caused by inconsistent movement and ensuring that the accuracy of each molding process reaches an extremely high level; synchronous control makes the running speed and position of the upper punch 20 and the lower punch 13 consistent, thereby avoiding one of the components from applying pressure too early or too late, reducing the stress of mechanical components, reducing mechanical wear, and increasing the service life of the equipment; in the process of mold closing, maintaining the synchronous movement of the upper punch 20 and the lower punch 13 helps to accurately close the mold and reduce the deviation in the product molding process, especially for those precision products that do not allow parting lines, which helps to manufacture high-quality mold products without connection seals and parting lines.

[0038] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the upper model output shaft 23 and the upper model fixing plate 21 are flexibly connected by shock-absorbing rubber. The shock-absorbing rubber can effectively absorb and reduce the vibration and impact generated during the operation of the mold, especially in the high-speed or high-pressure molding process. This shock-absorbing effect helps to improve the stability of the equipment and prevent damage or errors to equipment components due to vibration; since the shock-absorbing rubber is flexible, it can effectively reduce the slight errors caused by the hard connection method and the mutual interference between the components, maintain the precise alignment between the upper model fixing plate 21 and the upper model output shaft 23, thereby improving the positioning accuracy of the entire mold mechanism.

[0039] This solution has the following working process: in the initial position, the lower punch 13 is flush with the lower fixed model 16, the upper punch 20 is flush with the upper movable model 22, and a certain distance is maintained between the upper movable model 22 and the lower fixed model 16. The lower punch 13 runs at the set distance, and the feed plate 17 starts to fill the cavity of the lower fixed model 16 with powder. After the filling is completed, the next step is carried out, the upper movable model 22 runs down until it is closed with the lower fixed model 16, the core rod 9 runs upward through the cylinder, the lower punch 13 runs upward to the set distance, and the upper punch 20 runs downward to the set distance. Then the upper and lower punches approach and run at the same time to extrude the powder to complete the molding. After the powder extrusion is completed, the upper movable model 22 runs upward first, and the upper punch 20 and the lower punch 13 run upward to the set distance at the same time. The molded product is higher than the lower fixed model 16 and is then taken away by the robot. The process is repeated to ensure efficient and precise product production.

[0040] In summary: 1. By optimizing the structure, the dependence on expensive imported equipment is reduced. Compared with traditional foreign high-end machine tool equipment, the mold frame mechanism of the present invention can greatly reduce the equipment volume and cost, so that domestic enterprises can produce special tools that meet high-precision requirements with lower investment, and have a higher cost performance; at the same time, the mechanism realizes automated operation through the set motion trajectory and the robot automatic removal system, reducing manual intervention. The automated production line not only improves production efficiency, but also reduces human operation errors, reduces labor intensity, and improves the work efficiency and stability of the overall production line;

[0041] Second, through the precision design of the upper and lower models, a repeatable positioning accuracy of up to ±0.001mm can be achieved, ensuring the stability and consistency of the tool during each molding process. This ultra-high precision positioning can effectively avoid the errors that may occur in the traditional mold molding process, improve the quality of the product and processing efficiency, and is particularly suitable for special tools that require high-precision molding; at the same time, the molded product has no parting line, which is crucial for the production of precision tools. The existence of the parting line will affect the surface quality and cutting performance of the product. The present invention realizes the molding of products without parting lines through a double closed structure and precise mold frame design, ensuring the smoothness and consistency of the tool surface, and improving the processing performance and service life of the product;

[0042] 3. The upper model output shaft 23 and the upper model fixing plate 21 are flexibly connected by shock-absorbing rubber, which can effectively reduce the error caused by equipment vibration and ensure stable cutting force during processing. The shock-absorbing design greatly improves the stability in long-term high-frequency operation and helps to extend the service life of the equipment; at the same time, during the molding process, the powder is completed by precise filling and extrusion, which ensures the uniform distribution and consistency of the powder, avoids the problem of unstable molding quality caused by uneven filling, and each round of molding process ensures the high quality standards of the product.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-enclosed tool precision positioning mold frame device, comprising a guide column lower fixing plate (1) and a guide column upper fixing plate (2), characterized in that: A plurality of guide posts (3) are fixedly connected between the guide post lower fixing plate (1) and the guide post upper fixing plate (2); two first cylinder fixing plates (4) are fixedly connected to the top of the guide post lower fixing plate (1); the tops of the two first cylinder fixing plates (4) are fixedly connected to a first core rod cylinder (5); the output ends of the two first core rod cylinders (5) are fixedly connected to a second cylinder fixing plate (6); the top of the second cylinder fixing plate (6) is fixedly connected to a second core rod cylinder (7); the output end of the second core rod cylinder (7) is fixedly connected to a core rod fixing plate (8); the top of the core rod fixing plate (8) is fixedly connected to a core rod (9); and a cylinder adjustment group (10) is provided on the top of the second cylinder fixing plate (6); The top of the guide column lower fixed plate (1) is fixedly connected to two lower punch force shafts (11), the tops of the two lower punch force shafts (11) are fixedly connected to a lower punch fixed plate (12), the top of the lower punch fixed plate (12) is fixedly connected to a lower punch (13), the top of the guide column lower fixed plate (1) is fixedly connected to two lower model support columns (14), the tops of the two lower model support columns (14) are fixedly connected to a lower model fixed plate (15), a lower fixed model (16) is arranged inside the lower model fixed plate (15), and a feed plate (17) is arranged on the top of the lower fixed model (16); An upper punch fixing plate (18) is fixedly connected to the outer wall of the plurality of guide pillars (3) near the top, an upper punch output fixing surface (19) is fixedly connected to the top of the upper punch fixing plate (18), an upper punch (20) is fixedly connected to the bottom of the upper punch fixing plate (18), an upper model fixing plate (21) is fixedly connected to the outer wall of the plurality of guide pillars (3) near the bottom of the upper punch (20), an upper movable model (22) is arranged inside the upper model fixing plate (21), and two upper model output shafts (23) are fixedly connected to the top of the upper movable model (22).

2. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: An adjustable connection structure is adopted between the guide post lower fixing plate (1) and the guide post upper fixing plate (2).

3. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: The core rod (9) is connected to the core rod fixing plate (8) via a bearing.

4. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: The lower mold support column (14) is made of wear-resistant material.

5. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: The lower mold fixing plate (15) is provided with a plurality of fixing holes.

6. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: The feed plate (17) is designed to be angle-adjustable.

7. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: A buffer spring is provided between the upper mold fixing plate (21) and the upper movable mold (22).

8. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: The lower punch output shaft (11) and the upper model output shaft (23) are synchronous control devices.

9. A double-enclosed tool precision positioning mold frame device according to claim 1, characterized in that: The upper model output shaft (23) and the upper model fixing plate (21) are flexibly connected by shock-absorbing rubber.

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