Positioning device for precision mold manufacturing

Abstract

The utility model relates to the technical fields of mould and disclose a positioning device for precision mould manufacturing, including the shell, the bottom fixed mounting of shell inner chamber has the positioning mould, the top fixed mounting of shell inner chamber has the off -center formula extrusion mould, positioning mould includes the lower mould, the top fixed mounting of lower mould has the locating rod, the inner surface fixed mounting of locating rod has the spring, the top fixed mounting of spring has the top rod, the inner surface fixed mounting of top rod has the rotating bead, off -center formula extrusion mould includes the upper mould, the bottom of upper mould is established to have the guide slot, the inner surface of guide slot is established to have the locating groove. The positioning device for precision mould manufacturing, through the rotating bead on the top rod first touches the guide slot, the rotating bead rotates simultaneously, will drive the upper mould and move, make the top rod be guided and reinsert the locating groove, reposition the upper mould, the upper mould drives the top rod and extrudes downward when repositioning, the spring absorbs the downward pressure of top rod.

Description

Technical Field

[0001] This utility model relates to the technical field of molds, and in particular to a positioning device for precision mold manufacturing. Background Technology

[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It primarily achieves the shaping of objects by changing the physical state of the material being molded. Molds are widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics, and other products.

[0003] During the manufacturing process, in order to make the mold closing more precise, a guide rod is usually connected between the upper and lower molds for guidance. However, when there is a certain offset between the upper and lower molds, the guide rod experiences a lot of friction during the offset process, resulting in excessive wear. Thus, even though there is a guide rod, the mold will still offset during mold closing, leading to the failure of the object manufacturing. Utility Model Content

[0004] In view of the problem that the misalignment between existing molds causes wear and damage to the guide rod, resulting in the failure of object manufacturing, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a positioning device for precision mold manufacturing, which aims to reset the molds during the positioning process.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a positioning device for precision mold manufacturing, comprising a housing, wherein a positioning mold is fixedly installed at the bottom of the inner cavity of the housing, and an offset extrusion mold is fixedly installed at the top of the inner cavity of the housing; The positioning mold includes a lower mold, a positioning rod is fixedly installed on the top of the lower mold, a spring is fixedly installed on the inner surface of the positioning rod, a top rod is fixedly installed on the top of the spring, and a rotating ball is fixedly installed on the inner surface of the top rod.

[0007] As a preferred embodiment of the positioning device for precision mold manufacturing described in this utility model, the offset extrusion mold includes an upper mold, the bottom of which is provided with a guide groove, and the inner surface of which is provided with a positioning groove.

[0008] As a preferred embodiment of the positioning device for precision mold manufacturing described in this utility model, the offset extrusion mold further includes a hydraulic cylinder, the top of which is fixedly connected to the top of the inner cavity of the outer shell, and a hydraulic rod is fixedly installed on the output end of the hydraulic cylinder via a piston.

[0009] As a preferred embodiment of the positioning device for precision mold manufacturing described in this utility model, the offset extrusion mold further includes a connecting plate, the top of which is fixedly connected to the bottom of the hydraulic rod, and a groove is provided on the outer surface of the connecting plate.

[0010] As a preferred embodiment of the positioning device for precision mold manufacturing described in this utility model, the offset extrusion mold further includes a movable rod, and a movable plate is fixedly installed on the top of the movable rod.

[0011] In a preferred embodiment of the positioning device for precision mold manufacturing described in this utility model, the bottom of the moving rod is fixedly connected to the top of the upper mold, the outer surface of the moving rod is slidably connected to the inner surface of the slide groove, and the bottom of the moving plate is slidably connected to the top of the connecting plate.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model improves the positioning accuracy of the mold by increasing the accuracy of mold positioning and enabling reset. Through the cooperation of the lower mold and positioning rod with spring and ejector rod, the cooperation of ejector rod and rotating ball with guide groove and positioning groove, the cooperation of guide groove and upper mold with connecting plate and slide, and the cooperation of slide and moving rod with moving plate, the upper mold and positioning rod can automatically reset when there is deviation when the upper and lower molds are closed, thereby improving the positioning accuracy between molds.

[0013] 2. This utility model reduces the damage to the positioning rod during positioning by adding a design that minimizes squeezing damage. Through the cooperation of the lower mold, the positioning rod, spring, and push rod, the squeezing force is first absorbed by the spring when the upper mold is squeezed and closed. After resetting, it is released in the positioning groove, effectively reducing the damage to the positioning rod when the mold is closed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the positioning device for precision mold manufacturing according to this utility model; Figure 2 This is a three-dimensional structural diagram of the positioning mold for the positioning device used in precision mold manufacturing according to this utility model; Figure 3 This is a three-dimensional cross-sectional view of the positioning rod of the positioning device for precision mold manufacturing according to this utility model. Figure 4This is a three-dimensional structural diagram of the upper mold of the positioning device for precision mold manufacturing according to this utility model; Figure 5 This utility model relates to a positioning device for precision mold manufacturing. Figure 1 A schematic diagram of the enlarged structure of A.

[0015] Explanation of reference numerals in the attached figures: 1. Outer shell; 2. Positioning mold; 21. Lower mold; 22. Positioning rod; 23. Spring; 24. Push rod; 25. Rotary ball; 3. Offset extrusion mold; 31. Upper mold; 32. Guide groove; 33. Positioning groove; 34. Hydraulic cylinder; 35. Hydraulic rod; 36. Connecting plate; 37. Slide groove; 38. Moving rod; 39. Moving plate. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0017] Reference Figures 1-3 This is the first embodiment of the present invention, which provides a positioning device for precision mold manufacturing. The positioning device for precision mold manufacturing includes a housing 1, a positioning mold 2 fixedly installed at the bottom of the inner cavity of the housing 1, and an offset extrusion mold 3 fixedly installed at the top of the inner cavity of the housing 1. The positioning mold 2 includes a lower mold 21. A positioning rod 22 is fixedly installed on the top of the lower mold 21. A spring 23 is fixedly installed on the inner surface of the positioning rod 22. A push rod 24 is fixedly installed on the top of the spring 23. A rotating ball 25 is fixedly installed on the inner surface of the push rod 24.

[0018] The offset extrusion die 3 includes an upper die 31, a guide groove 32 is provided at the bottom of the upper die 31, and a positioning groove 33 is provided on the inner surface of the guide groove 32.

[0019] During use, as the upper mold 31 moves, the positioning rod 22 and the ejector rod 24 in the lower mold 21 are directly inserted into the positioning groove 33, causing the upper mold 31 and the lower mold 21 to close. When the upper mold 31 is tilted and misaligned, the rotating ball 25 on the ejector rod 24 first touches the guide groove 32. As the rotating ball 25 rotates, it will drive the upper mold 31 to move, so that the ejector rod 24 is guided to re-insert into the positioning groove 33, thus resetting the upper mold 31. Example

[0020] Reference Figures 4-5This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the offset extrusion mold 3 also includes a hydraulic cylinder 34. The top of the hydraulic cylinder 34 is fixedly connected to the top of the inner cavity of the outer shell 1, and the output end of the hydraulic cylinder 34 is fixedly mounted with a hydraulic rod 35 through a piston.

[0021] The offset extrusion die 3 also includes a connecting plate 36, the top of which is fixedly connected to the bottom of the hydraulic rod 35, and a groove 37 is provided on the outer surface of the connecting plate 36.

[0022] The offset extrusion die 3 also includes a movable rod 38, on the top of which a movable plate 39 is fixedly mounted.

[0023] The bottom of the movable rod 38 is fixedly connected to the top of the upper mold 31, the outer surface of the movable rod 38 is slidably connected to the inner surface of the slide groove 37, and the bottom of the movable plate 39 is slidably connected to the top of the connecting plate 36.

[0024] During use, the pressure cylinder 34 drives the hydraulic rod 35 to move. The hydraulic rod 35 drives the moving rod 38 and the moving plate 39 to move downward through the connecting plate 36. The moving rod 38 drives the upper mold 31 to move downward. When the upper mold 31 is resetting, the upper mold 31 drives the push rod 24 to press downward. The spring 23 absorbs the downward pressure of the push rod 24 to prevent the pressure of the upper mold 31 from being too large and damaging the positioning rod 22 during resetting.

[0025] The remaining structure is the same as that in Example 1.

[0026] Based on embodiments 1-2, the working principle of this utility model is as follows: When the user starts the equipment, the hydraulic cylinder 34 drives the hydraulic rod 35 to move. The hydraulic rod 35 drives the moving rod 38 and the moving plate 39 to move downward through the connecting plate 36. The moving rod 38 drives the upper mold 31 to move downward. During the movement of the upper mold 31, the positioning rod 22 and the ejector rod 24 in the lower mold 21 are directly inserted into the positioning groove 33, so that the upper mold 31 and the lower mold 21 are closed. When the upper mold 31 is tilted and the position is incorrect, the rotating ball 25 on the ejector rod 24 first touches the guide groove 32. While the rotating ball 25 is rotating, it will drive the upper mold 31 to move, so that the ejector rod 24 is guided to re-insert into the positioning groove 33, and the upper mold 31 is reset. When the upper mold 31 is reset, the upper mold 31 drives the ejector rod 24 to press downward. The spring 23 absorbs the downward pressure of the ejector rod 24, so as to avoid excessive pressure during the reset of the upper mold 31 and damage to the positioning rod 22.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning device for precision mold manufacturing, comprising a housing (1), characterized in that: A positioning mold (2) is fixedly installed at the bottom of the inner cavity of the outer shell (1), and an offset extrusion mold (3) is fixedly installed at the top of the inner cavity of the outer shell (1). The positioning mold (2) includes a lower mold (21), a positioning rod (22) is fixedly installed on the top of the lower mold (21), a spring (23) is fixedly installed on the inner surface of the positioning rod (22), a top rod (24) is fixedly installed on the top of the spring (23), and a rotating ball (25) is fixedly installed on the inner surface of the top rod (24).

2. The positioning device for precision mold manufacturing according to claim 1, characterized in that: The offset extrusion die (3) includes an upper die (31), the bottom of which is provided with a guide groove (32), and the inner surface of the guide groove (32) is provided with a positioning groove (33).

3. The positioning device for precision mold manufacturing according to claim 1, characterized in that: The offset extrusion die (3) also includes a hydraulic cylinder (34), the top of which is fixedly connected to the top of the inner cavity of the outer shell (1), and the output end of the hydraulic cylinder (34) is fixedly mounted with a hydraulic rod (35) via a piston.

4. The positioning device for precision mold manufacturing according to claim 1, characterized in that: The offset extrusion die (3) also includes a connecting plate (36), the top of which is fixedly connected to the bottom of the hydraulic rod (35), and a groove (37) is provided on the outer surface of the connecting plate (36).

5. The positioning device for precision mold manufacturing according to claim 1, characterized in that: The offset extrusion die (3) also includes a movable rod (38), and a movable plate (39) is fixedly installed on the top of the movable rod (38).

6. The positioning device for precision mold manufacturing according to claim 5, characterized in that: The bottom of the moving rod (38) is fixedly connected to the top of the upper mold (31), the outer surface of the moving rod (38) is slidably connected to the inner surface of the slide groove (37), and the bottom of the moving plate (39) is slidably connected to the top of the connecting plate (36).

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