A high-precision mold frame for assembly

Abstract

The utility model relates to die carrier application technical field discloses a high -precision die carrier for assembly, including lower die carrier and upper die carrier, both sides of upper die carrier are fixedly connected with the guide sleeve, and the guide sleeve temporal part sets up the positioning sleeve hole, both sides of positioning sleeve hole inner chamber relative position department all set up arc -shaped sliding slot, both sides of upper die carrier are detachably connected with the guide rod, and the guide rod includes fixed disc, spacing connecting rod, spring, positioning rod and ball bearing, the utility model has realized high -precision guide, smooth operation and accurate positioning when the opening and closing movement of upper die carrier and lower die carrier, reduced friction and wear and tear of guide part to prolong the service life, can also utilize pressure sensor monitoring pressure in the process that positioning rod and positioning sleeve hole sleeve joint abut, accurate judgement clamping condition, when pressure exceeds the set value, automatically signal gives the outside control system and closes drive structure, avoids the damage of guide column, improves die work reliability, safety.

Description

Technical Field

[0001] This utility model relates to the field of mold frame application technology, specifically a high-precision mold frame for assembly. Background Technology

[0002] As a key support structure for molds, the mold frame consists of components such as the base, top plate, guide pillars, guide sleeves, and templates. It plays an important role in providing physical support, precise positioning, and smooth guidance for the mold. It is widely used in various molds such as stamping, injection molding, and die casting. Its own precision is directly related to the precision of the mold. By ensuring the stable operation of mold components, it has a decisive influence on the dimensional accuracy, shape accuracy, appearance quality, and internal quality of the product. It is one of the core elements that determine the quality of the mold and the product. Existing high-precision mold bases typically achieve precise positioning by using precise fitting between guide sleeves and guide pillars. However, after multiple positioning operations, the guide pillars and guide holes will wear down, leading to a decrease in positioning accuracy and affecting the quality of mold processing. Furthermore, misalignment during the engagement process cannot be detected in time, which can easily damage the guide pillars and affect the accuracy of the mold base. To address this, we propose a high-precision mold base for assembly. Utility Model Content

[0003] The main objective of this invention is to provide a high-precision mold base for assembly, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-precision mold frame for assembly, comprising a lower mold frame and an upper mold frame. Guide sleeves are fixedly connected to both sides of the lower mold frame. Positioning sleeve holes are provided inside the guide sleeves. Arc-shaped grooves are provided at opposite positions on both sides of the inner cavity of the positioning sleeve holes. Guide rods are detachably connected to both sides of the upper mold frame. Each guide rod includes a fixed plate, a limiting connecting rod, a spring, a positioning rod, and ball bearings. A fixed plate is fixedly connected to the top of the limiting connecting rod. A positioning rod is fitted onto the lower surface of the limiting connecting rod. Ball bearings, adapted to the arc-shaped grooves, are rotatably nested at opposite positions on the surface of the positioning rod. Multiple ball bearings are arranged vertically and equidistantly on the surface of the positioning rod. A spring is fitted onto the upper surface of the limiting connecting rod, with both ends of the spring abutting against the inner side of the fixed plate and one side of the positioning rod, respectively.

[0005] Preferably, a pressure sensor is detachably nested at the bottom of the positioning rod, and the pressure sensor is electrically connected to an externally configured control terminal.

[0006] Preferably, the inner wall of the guide sleeve and the surface of the positioning rod are coated with a wear-resistant coating, and the wear-resistant coating is made of nano-ceramic.

[0007] Preferably, a top plate is detachably connected to the top of the upper mold frame.

[0008] Preferably, a base is detachably connected to the lower surface of the lower mold frame.

[0009] Preferably, the guide sleeve, the limiting connecting rod, and the positioning rod are all made of carbon fiber reinforced composite material.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves high-precision guidance and smooth operation of the upper and lower mold frames during opening and closing by cooperating with guide sleeves, positioning sleeve holes, limiting slide grooves, positioning rods, and ball bearings. High-precision positioning is achieved through the engagement between the positioning rod and the positioning sleeve hole inside the guide sleeve, and the ball bearings roll in the arc-shaped slide groove during engagement. Compared with traditional sliding friction, this greatly reduces friction, reduces wear on guide components, extends service life, and improves guiding accuracy and stability. It ensures that the mold can be accurately positioned every time it opens and closes, effectively improving the molding quality and dimensional accuracy of the product, and extending the service life of the mold frame and the mold.

[0011] 2. This utility model utilizes a guide sleeve, a positioning sleeve hole, a limiting connecting rod, a spring, a positioning rod, a ball bearing, and a pressure sensor in cooperation. When the positioning rod, which is slidably sleeved on the lower surface of the limiting connecting rod, engages with the positioning sleeve hole inside the guide sleeve, it will abut against the bottom end of the positioning sleeve hole as it moves downwards. During the downward movement, the pressure sensor can accurately monitor the pressure, thereby accurately determining whether the upper and lower mold frames are properly engaged based on the pressure data. If misalignment occurs and the pressure exceeds the set value, a signal will be automatically transmitted to the external control system, and the drive structure will be automatically shut down. This prevents the guide column from being damaged due to violent engagement, improves the reliability and safety of mold operation, and reduces the risk of failure and scrap rate during production. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the guide sleeve of this utility model; Figure 3 This is a schematic diagram of the positioning guide post of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the positioning guide post of this utility model.

[0013] In the diagram: 1. Base; 2. Top plate; 3. Lower mold frame; 4. Upper mold frame; 5. Guide sleeve; 6. Guide rod; 7. Positioning sleeve hole; 8. Arc-shaped slide groove; 9. Pressure sensor; 601. Fixed plate; 602. Limiting connecting rod; 603. Spring; 604. Positioning rod; 605. Ball bearing. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0015] Please see Figure 1 - Figure 4 The figure shows a high-precision mold frame for assembly, including a lower mold frame 3 and an upper mold frame 4. Guide sleeves 5 are fixedly connected to both sides of the lower mold frame 3. Positioning sleeve holes 7 are formed inside the guide sleeves 5. Arc-shaped grooves 8 are formed at opposite positions on both sides of the inner cavity of the positioning sleeve holes 7. Guide rods 6 are detachably connected to both sides of the upper mold frame 4. Each guide rod 6 includes a fixed plate 601, a limiting connecting rod 602, a spring 603, a positioning rod 604, and ball bearings 605. The fixed plate 601 is fixedly connected to the top of the limiting connecting rod 602. A positioning rod 604 is fitted onto the lower surface of the limiting connecting rod 602. Ball bearings 605, which are adapted to the arc-shaped grooves 8, are rotatably nested at opposite positions on the surface of the positioning rod 604. 05, and multiple balls 605 are arranged vertically and equidistantly on the surface of the positioning rod 604. A spring 603 is sleeved on the upper surface of the limiting connecting rod 602, and the two ends of the spring 603 abut against the inner side of the fixed plate 601 and one side of the positioning rod 604, respectively. High-precision positioning is achieved by the engagement between the positioning rod 604 and the positioning sleeve hole 7 inside the guide sleeve 5. During engagement, the balls 605 roll in the arc-shaped sliding groove 8. Compared with traditional sliding friction, this greatly reduces friction, reduces wear on the guide components, extends service life, and improves guiding accuracy and stability. This ensures that the mold can be accurately positioned every time it opens and closes, effectively improving the molding quality and dimensional accuracy of the product, and extending the service life of the mold frame and the mold.

[0016] The positioning rod 604 is detachably nested with a pressure sensor 9 at its bottom end, and the pressure sensor 9 is electrically connected to an external control terminal. When the positioning rod 604, which is slidably sleeved on the lower surface of the limiting connecting rod 602, engages with the positioning sleeve hole 7 inside the guide sleeve 5, the positioning rod 604 will abut against the bottom end of the positioning sleeve hole 7 as it moves downward. During the downward movement, the pressure sensor 9 can accurately monitor the pressure and accurately determine whether the upper mold frame 4 and the lower mold frame 3 are properly engaged based on the pressure data. If misalignment occurs and the pressure exceeds the set value, the signal will be automatically transmitted to the external control system, and the drive structure will be automatically shut down to prevent the guide column from being damaged due to violent engagement.

[0017] The inner wall of the guide sleeve 5 and the surface of the positioning rod 604 are coated with a wear-resistant coating, which is made of nano-ceramic. By coating the inner wall of the guide sleeve 5 and the surface of the positioning rod 604 with a nano-ceramic wear-resistant coating, the guide sleeve 5 and the positioning rod 604 are protected, which greatly reduces their wear rate during frequent friction, effectively maintains high-precision fit during long-term use, reduces the decrease in guiding accuracy and mold failure caused by wear, and extends the maintenance cycle and overall service life of the mold frame.

[0018] The upper mold frame 4 is detachably connected to a top plate 2, and the lower mold frame 3 is detachably connected to a base 1 on its lower surface. Through the detachable connection between the upper mold frame 4 and the top plate 2, and the detachable connection between the lower mold frame 3 and the base 1, the overall structure of the mold frame can be easily assembled, disassembled, and flexibly maintained. When mold frame parts are damaged or need to be upgraded or replaced, the operation can be carried out quickly, effectively reducing maintenance time, cost, and difficulty, and improving the efficiency and flexibility of production equipment management.

[0019] The guide sleeve 5, the limiting connecting rod 602, and the positioning rod 604 are all made of carbon fiber reinforced composite material. By using carbon fiber reinforced composite material to make the guide sleeve 5, the limiting connecting rod 602, and the positioning rod 604, the mold frame can be significantly reduced in weight while ensuring high strength and high rigidity, thereby improving the fatigue resistance and corrosion resistance of the mold frame.

[0020] It should be noted that this utility model is a high-precision mold frame for assembly. In use, the copper drum base plate and top plate 2 connect the upper mold frame 4 and the lower mold frame 3 to the machine tool. During operation, the guide rods 6 on both sides of the upper mold frame 4 are aligned with the positioning sleeve holes 7 on both sides of the guide sleeves 5 of the lower mold frame 3, so that the positioning rod 604 is inserted into the positioning sleeve hole 7. As the upper mold frame 4 moves down, the positioning rod 604 gradually goes deeper into the positioning sleeve hole 7. At this time, the ball 605 on the positioning rod 604 rolls in the arc-shaped sliding groove 8 to achieve high-precision guidance and smooth operation, effectively reducing friction. Then, high-precision positioning is achieved through the engagement between the positioning rod 604 and the positioning sleeve hole 7, reducing friction and wear of the guide components. When the positioning rod 604 abuts against the bottom end of the positioning sleeve hole 7, the pressure sensor 9 begins to accurately monitor the pressure and judges whether the upper mold frame 4 and the lower mold frame 3 are engaged in place based on the pressure data. If the pressure exceeds the set value due to misalignment or other reasons during the mold operation, the pressure sensor 9 will automatically transmit the signal to the external control system. The control system will automatically shut down the drive structure to prevent the guide column from being damaged by violent jamming, thereby ensuring the reliability and safety of the mold operation, reducing the risk of failure and scrap rate, and ultimately effectively improving the molding quality and dimensional accuracy of the product and extending the service life of the mold frame and mold.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision mold base for assembly, comprising a lower mold base (3) and an upper mold base (4), characterized in that: Guide sleeves (5) are fixedly connected to both sides of the lower mold frame (3). The guide sleeves (5) have positioning sleeve holes (7) inside. Arc-shaped sliding grooves (8) are opened at opposite positions on both sides of the inner cavity of the positioning sleeve holes (7). Guide rods (6) are detachably connected to both sides of the upper mold frame (4). The guide rods (6) include a fixed plate (601), a limiting connecting rod (602), a spring (603), a positioning rod (604), and a ball (605). A fixed plate is fixedly connected to the top of the limiting connecting rod (602). (601) A positioning rod (604) is sleeved on the lower end surface of the limiting connecting rod (602). A ball (605) that is compatible with the arc-shaped sliding groove (8) is rotatably nested at the relative positions on the surface of the positioning rod (604). There are multiple balls (605) arranged vertically and equidistantly on the surface of the positioning rod (604). A spring (603) is sleeved on the upper end surface of the limiting connecting rod (602). The two ends of the spring (603) abut against the inner side of the fixed plate (601) and the side of the positioning rod (604) respectively.

2. A high-precision mold base for assembly according to claim 1, characterized in that: The bottom end of the positioning rod (604) is detachably nested with a pressure sensor (9), and the pressure sensor (9) is electrically connected to the control terminal set up in the outside.

3. A high-precision mold base for assembly according to claim 2, characterized in that: The inner wall of the guide sleeve (5) and the surface of the positioning rod (604) are coated with a wear-resistant coating, and the wear-resistant coating is made of nano-ceramic.

4. A high-precision mold base for assembly according to claim 1, characterized in that: The top of the upper mold frame (4) is detachably connected to a top plate (2).

5. A high-precision mold base for assembly according to claim 1, characterized in that: The lower mold frame (3) has a base (1) detachably connected to its lower surface.

6. A high-precision mold base for assembly according to claim 1, characterized in that: The guide sleeve (5), the limiting connecting rod (602), and the positioning rod (604) are all made of carbon fiber reinforced composite material.

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