A mold for cutting and plating a layer by fluid polishing

By introducing precision machining, automatic ejection, and fluid polishing mechanisms into the mold, the problems of difficult mold replacement, inaccurate machining, and poor surface quality are solved. Stable mold installation, automatic ejection, and efficient fluid polishing are achieved, improving the machining accuracy and surface quality of the workpiece.

CN224334240UActive Publication Date: 2026-06-09CHENSHOU (XIAMEN) AUTOMATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENSHOU (XIAMEN) AUTOMATION TECH CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing molds cannot be easily replaced during use, which increases the difficulty of replacement operations; the efficiency of precision machining is low, the automatic ejection function is insufficient, and fluid polishing is inconvenient, resulting in inaccurate workpiece machining and poor surface quality.

Method used

The design incorporates a precision machining mechanism, an automatic ejection mechanism, and a fluid polishing mechanism. These mechanisms achieve stable mold installation, automatic ejection, and fluid polishing through the cooperation of positioning blocks and slots, the linkage of extension springs and elastic devices, and the combination of polishing fluid blasting pumps and spray heads.

Benefits of technology

It improves the stability and precision of mold use, realizes automatic ejection and fluid polishing, and ensures the accuracy and surface quality of workpiece processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of cold heading machine mold technology, specifically a mold for fluid polishing and coating, comprising a mold body, a precision machining mechanism on the surface of the mold body and the die body, an automatic ejection mechanism on the surface of the mold body, and a fluid polishing mechanism on the surface of the mold body. This utility model not only prevents inaccurate workpiece processing caused by the die body wobbling inside the mold body during mold use, making the mold more precise in workpiece processing, and allowing the mold to eject the workpiece upwards during use, preventing deformation under pressure and ensuring the processing effect, but also removes burrs, flash, and residual marks from the coating surface of the mold body and the inner wall of the mold groove, thereby improving the surface quality of the workpiece during processing.
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Description

Technical Field

[0001] This utility model relates to the field of cold heading machine mold technology, specifically a mold that has undergone fluid polishing and coating. Background Technology

[0002] Cold heading machines use cold heading to forge the heads of bolts and screws, minimizing cutting work and directly forming them into the required shape and size. This not only saves a lot of materials but also significantly improves production efficiency and mechanical strength of the forged parts. Cold heading machines require molds for use. To meet production needs, a mold that has undergone fluid polishing and coating is required.

[0003] Existing molds are not easy to replace during use, increasing the difficulty and time of replacement operations. The precision and processing efficiency of existing molds need to be improved, resulting in insufficient precision in workpiece processing. Furthermore, existing molds are inconvenient for automatic ejection, making it difficult to push workpieces upwards, which can easily lead to deformation of the workpiece under pressure and compromise the processing effect. In addition, existing molds are not convenient for fluid polishing, which means that burrs, flash, and residual marks on the coating surface of the mold body and inner wall of the mold groove cannot be completely removed, reducing the surface quality of the workpiece during processing. Utility Model Content

[0004] The purpose of this invention is to provide a mold that has undergone fluid polishing and coating to solve the problems mentioned in the background art, such as the need to improve the precision processing efficiency of the mold, the inconvenience of automatic ejection, and the inconvenience of fluid polishing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold with a fluid polishing and coating process, comprising a mold body, a concave mold body on the surface of the mold body, mold grooves on the surfaces of the mold body and the concave mold body, mounting studs threadedly connected to the surface of the mold body, a precision machining mechanism on the surfaces of the mold body and the concave mold body, an automatic ejection mechanism on the surface of the mold body, and a fluid polishing mechanism on the surface of the mold body.

[0006] Preferably, one end of the mounting stud penetrates through the mold body and extends to the outside of the mold body, the surface of the mold body is provided with a screw hole, and one end of the die body extends into the interior of the screw hole and is threadedly engaged with the inner wall of the screw hole.

[0007] Preferably, the precision machining mechanism comprises an mounting block, mounting screws, positioning blocks, and positioning slots. Positioning blocks are mounted on the surface of the die body, and positioning slots are provided on the inner wall of the die body. The positioning slots and the surfaces of the positioning blocks engage with each other.

[0008] Preferably, each surface of the die body is equipped with a mounting block, and the surface of the mounting block is threaded with a mounting screw. One end of the mounting screw passes through the mounting block and is fastened to the surface of the die body by the thread.

[0009] Preferably, the automatic ejection mechanism consists of a extension spring, a top plate, a movable plate, and a spring. The spring is installed on one side of the mold body, and the movable plate is provided on the surface of the spring. The movable plate is in contact with the surface of the mold body.

[0010] Preferably, the surface of the elastic device is fitted with a tension spring, one end of which is fixed to the surface of the movable plate. A top plate is mounted on the surface of the movable plate, one end of which extends into the interior of the mold groove and slides against the inner wall of the mold groove.

[0011] Preferably, the fluid polishing mechanism consists of a polishing liquid sandblasting pump, a liquid outlet pipe, a spray head, and a liquid guide pipe. The polishing liquid sandblasting pump is installed on one side of the mold body, and a liquid outlet pipe is installed at the output end of the polishing liquid sandblasting pump. A liquid guide pipe is installed on the surface of the liquid outlet pipe by screws, and the liquid guide pipe is connected to the interior of the liquid outlet pipe.

[0012] Preferably, a spray head is provided inside the mold groove, the bottom end of the spray head extends to the outside of the mold body, and one end of the liquid guide tube extends into the interior of the spray head and communicates with the interior of the spray head.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the mold with fluid polishing and coating not only avoids the phenomenon of insufficient precision in workpiece processing caused by the wobbling of the die body inside the mold body during mold use, but also makes the mold more precise in processing the workpiece. It can push the workpiece upward during mold use, avoid deformation of the workpiece under pressure, and ensure the processing effect of the workpiece. Moreover, it can remove burrs, flash and residual marks from the coating surface of the mold body and the inner wall of the mold groove during mold use, thereby improving the surface quality of the workpiece during processing.

[0014] 1. With a precision machining mechanism, the die body drives the positioning block to automatically engage with the positioning slot. The engagement between the positioning block and the positioning slot prevents the die body from shaking on the surface of the mold body. Then, the user tightens the mounting screws on the mounting block surface, which installs the die body onto the surface of the mold body. This makes the mold more stable during use and easier to disassemble and replace, achieving the function of precision machining. This prevents the die body from shaking inside the mold body, which could lead to inaccurate workpiece machining, making the workpiece machining more precise.

[0015] 2. By setting up an automatic ejection mechanism, when the pressing processing component moves the workpiece into the mold cavity for processing, the workpiece moves downward and presses the top plate, causing the top plate to move downward and the moving plate to press the extension spring, causing the extension spring and the elastic device to contract. After the workpiece is processed, the pressing processing component moves away from the surface of the workpiece. Under the elastic force of the extension spring and the elastic device, it drives the moving plate to move. The moving plate moves to contact the surface of the mold body. At this time, the moving plate drives the top plate to move upward and lifts the processed workpiece inside the mold cavity, which is convenient for the next process. This realizes the automatic ejection function of the mold, so that the mold can push the workpiece upward when in use, avoid the workpiece from deforming under pressure, and ensure the processing effect of the workpiece.

[0016] 3. By setting up a fluid polishing mechanism and controlling the operation of the polishing slurry blasting pump, the slurry carrying abrasive particles is drawn from the storage tank under the action of the blasting pump. Then, it is introduced into the interior of the spray head through the liquid outlet pipe and the liquid guide pipe. The slurry carrying abrasive particles enters the interior of the mold body and the mold cavity through the spray head. The high-speed flowing slurry carrying abrasive particles can wash and grind the burrs, flash, and residual marks on the coating surface of the mold body and the inner wall of the mold cavity when passing through the inner wall of the mold body and the mold cavity. The abrasive is usually made of materials such as silicon carbide, white corundum, or diamond, which can effectively remove the small defects on the coating surface, realizing the function of fluid polishing of the mold. This allows the mold to remove burrs, flash, and residual marks on the coating surface of the mold body and the inner wall of the mold cavity during use, thereby improving the surface quality of the workpiece during processing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 3 This is an enlarged side view sectional diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the fluid polishing mechanism of this utility model in use;

[0021] Figure 5 For the present utility model Figure 3 A schematic diagram of the structure of a precision machining mechanism.

[0022] In the diagram: 1. Mold body; 101. Die body; 102. Mold groove; 103. Mounting stud; 104. Screw hole; 2. Precision machining mechanism; 21. Mounting block; 22. Mounting screw; 23. Positioning block; 24. Positioning slot; 3. Automatic ejection mechanism; 31. Extension spring; 32. Top plate; 33. Moving plate; 34. Elastic force device; 4. Fluid polishing mechanism; 41. Polishing fluid sandblasting pump; 42. Discharge pipe; 43. Spray head; 44. Guide pipe. Detailed Implementation

[0023] 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0024] This utility model provides a structure for a mold that has undergone fluid polishing and coating, as shown in the following example. Figure 1 and Figure 2 As shown, the mold includes a mold body 1, a cavity mold body 101 is provided on the surface of the mold body 1, and mold grooves 102 are opened on the surfaces of the mold body 1 and the cavity mold body 101. The surface of the mold body 1 is threaded with mounting studs 103. One end of the mounting stud 103 passes through the mold body 1 and extends to the outside of the mold body 1. The surface of the mold body 1 is provided with a screw hole 104. One end of the cavity mold body 101 extends into the interior of the screw hole 104 and is threadedly engaged with the inner wall of the screw hole 104.

[0025] Furthermore, such as Figure 3 and Figure 5As shown, the surfaces of the mold body 1 and the die body 101 are provided with a precision machining mechanism 2. The precision machining mechanism 2 consists of an mounting block 21, a mounting screw 22, a positioning block 23, and a positioning groove 24. The surface of the die body 101 is provided with a positioning block 23, and the inner wall of the mold body 1 is provided with a positioning groove 24. The surfaces of the positioning groove 24 and the positioning block 23 are engaged with each other. The surface of the die body 101 is provided with a mounting block 21, and the surface of the mounting block 21 is threaded with a mounting screw 22. One end of the mounting screw 22 passes through the mounting block 21 and is threadedly fastened to the surface of the mold body 1.

[0026] During implementation, the die body 101 drives the positioning block 23 to automatically engage with the positioning slot 24. The engagement between the positioning block 23 and the positioning slot 24 prevents the die body 101 from shaking on the surface of the mold body 1. Subsequently, the user tightens the mounting screws 22 on the surface of the mounting block 21. Under the action of the mounting screws 22, the die body 101 is installed on the surface of the mold body 1, which makes the mold more stable during use and convenient to disassemble and replace, so as to achieve the function of precise mold processing.

[0027] Furthermore, such as Figure 3 As shown, an automatic ejection mechanism 3 is provided on the surface of the mold body 1. The automatic ejection mechanism 3 is composed of a tension spring 31, a top plate 32, a moving plate 33, and a spring 34. A spring 34 is installed on one side of the surface of the mold body 1. A moving plate 33 is provided on the surface of the spring 34. The moving plate 33 is in contact with the surface of the mold body 1. A tension spring 31 is fitted on the surface of the spring 34. One end of the tension spring 31 is fixed to the surface of the moving plate 33. A top plate 32 is installed on the surface of the moving plate 33. One end of the top plate 32 extends into the interior of the mold groove 102 and slides against the inner wall of the mold groove 102.

[0028] In practice, when the pressing processing component moves the workpiece into the mold groove 102 for processing, the workpiece moves downward and presses the top plate 32, causing the top plate 32 to move the moving plate 33 downward. The moving plate 33 presses the extension spring 31, causing the extension spring 31 and the elastic device 34 to contract. After the workpiece is processed, the pressing processing component moves away from the surface of the workpiece. Under the elastic force of the extension spring 31 and the elastic device 34, the moving plate 33 moves until it contacts the surface of the mold body 1. At this time, the moving plate 33 drives the top plate 32 to move upward, lifting the processed workpiece inside the mold groove 102 to facilitate the operation of the next process, so as to realize the function of automatic ejection of the mold.

[0029] Furthermore, such as Figure 4As shown, a fluid polishing mechanism 4 is provided on the surface of the mold body 1. The fluid polishing mechanism 4 consists of a polishing liquid sandblasting pump 41, an outlet pipe 42, a spray head 43, and a guide pipe 44. The polishing liquid sandblasting pump 41 is installed on one side of the mold body 1. An outlet pipe 42 is installed at the output end of the polishing liquid sandblasting pump 41. A guide pipe 44 is installed on the surface of the outlet pipe 42 by screws. The guide pipe 44 is connected to the interior of the outlet pipe 42. A spray head 43 is provided inside the mold groove 102. The bottom end of the spray head 43 extends to the outside of the mold body 1. One end of the guide pipe 44 extends into the interior of the spray head 43 and is connected to the interior of the spray head 43.

[0030] During implementation, the polishing slurry blasting pump 41 is controlled to operate. Under the action of the polishing slurry blasting pump 41, the liquid carrying abrasive particles is drawn out from the storage tank and then introduced into the interior of the spray head 43 through the liquid outlet pipe 42 and the liquid guide pipe 44. The liquid carrying abrasive particles enters the interior of the mold body 1 and the mold groove 102 through the spray head 43. The high-speed flowing liquid carrying abrasive particles can wash and grind the burrs, flash and residual marks on the coating surface of the inner wall of the mold body 1 and the mold groove 102 when passing through the inner wall of the mold body 1 and the mold groove 102. The abrasive is usually made of materials such as silicon carbide, white corundum or diamond, which can effectively remove the small defects on the coating surface to achieve the function of fluid polishing of the mold.

[0031] Working principle: In use, first place the mold body 1 at the designated position on the cold heading machine, then tighten the mounting stud 103. Under the action of the mounting stud 103, the mold body 1 is mounted on the surface of the cold heading machine. Next, the user places the die body 101 on the surface of the mold body 1. The user rotates the die body 101, and with the threaded engagement between the die body 101 and the screw hole 104, the die body 101 is mounted on the surface of the mold body 1. At this time, the die body 101 drives the positioning block 23 to automatically engage with the positioning slot 24. The positioning block 23 and the positioning slot... The locking action of 24 prevents the die body 101 from shaking on the surface of the mold body 1. Then, the user tightens the mounting screws 22 on the surface of the mounting block 21. Under the action of the mounting screws 22, the die body 101 is installed on the surface of the mold body 1, which makes the mold more stable during use and easy to disassemble and replace, so as to realize the function of precise mold processing. This prevents the die body 101 from shaking inside the mold body 1, which would cause insufficient precision in the processing of the workpiece, and makes the mold more precise in processing the workpiece.

[0032] Subsequently, when the pressing processing component moves the workpiece into the mold groove 102 for processing, the workpiece moves downward and presses the top plate 32, causing the top plate 32 to move the moving plate 33 downward. The moving plate 33 presses the extension spring 31, causing the extension spring 31 and the elastic device 34 to contract. After the workpiece is processed, the pressing processing component moves away from the surface of the workpiece. Under the elastic force of the extension spring 31 and the elastic device 34, it drives the moving plate 33 to move. The moving plate 33 moves to contact the surface of the mold body 1. At this time, the moving plate 33 drives the top plate 32 to move upward, lifting the processed workpiece inside the mold groove 102 to facilitate the operation of the next process, so as to realize the automatic ejection function of the mold. This allows the mold to eject the workpiece upward when in use, avoiding deformation of the workpiece under pressure and ensuring the processing effect of the workpiece.

[0033] Subsequently, when the mold body 1 is in use, it is necessary to remove burrs, flash, and residual marks from the inner walls of the mold body 1 and the die body 101. The user controls the polishing slurry blasting pump 41 by operating the controller on the cold heading machine. Under the action of the polishing slurry blasting pump 41, the liquid carrying abrasive particles is drawn from the storage tank and then introduced into the interior of the spray head 43 through the liquid outlet pipe 42 and the liquid guide pipe 44. The liquid carrying abrasive particles enters the interior of the mold body 1 and the mold groove 102 through the spray head 43. The high-speed flowing liquid carries the abrasive particles... When passing through the inner wall of the mold body 1 and the mold groove 102, the burrs, flash, and residual marks on the coating surface of the inner wall of the mold body 1 and the mold groove 102 can be flushed and ground. The abrasive is usually made of materials such as silicon carbide, white corundum, or diamond, which can effectively remove the small defects on the coating surface to achieve the function of mold fluid polishing. This allows the mold to remove the burrs, flash, and residual marks on the coating surface of the inner wall of the mold body 1 and the mold groove 102 during use, thereby improving the surface quality of the workpiece during processing and finally completing the use of the mold.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mold that has undergone fluid polishing and coating, comprising a mold body (1), characterized in that: The surface of the mold body (1) is provided with a cavity mold body (101), and the surfaces of the mold body (1) and the cavity mold body (101) are provided with mold grooves (102). The surface of the mold body (1) is threaded with mounting studs (103). The surfaces of the mold body (1) and the cavity mold body (101) are provided with precision machining mechanisms (2). The surface of the mold body (1) is provided with an automatic ejection mechanism (3). The surface of the mold body (1) is provided with a fluid polishing mechanism (4).

2. The mold for fluid polishing and coating as described in claim 1, characterized in that: One end of the mounting stud (103) penetrates through the mold body (1) and extends to the outside of the mold body (1). The surface of the mold body (1) is provided with a screw hole (104). One end of the die body (101) extends into the inside of the screw hole (104) and is threadedly engaged with the inner wall of the screw hole (104).

3. The mold for fluid polishing and coating as described in claim 1, characterized in that: The precision machining mechanism (2) consists of a mounting block (21), mounting screws (22), positioning blocks (23) and positioning slots (24). Positioning blocks (23) are installed on the surface of the die body (101), and positioning slots (24) are opened on the inner wall of the mold body (1). The positioning slots (24) and the surfaces of the positioning blocks (23) are engaged with each other.

4. The mold for fluid polishing and coating as described in claim 1, characterized in that: Mounting blocks (21) are installed on the surface of the die body (101). Mounting screws (22) are threadedly connected to the surface of the mounting blocks (21). One end of the mounting screws (22) passes through the mounting blocks (21) and is threadedly fastened to the surface of the die body (1).

5. A mold for fluid polishing and coating as described in claim 1, characterized in that: The automatic ejection mechanism (3) consists of a stretching spring (31), a top plate (32), a moving plate (33), and a spring (34). A spring (34) is installed on one side of the mold body (1), and a moving plate (33) is provided on the surface of the spring (34). The moving plate (33) is in contact with the surface of the mold body (1).

6. A mold for fluid polishing and coating as described in claim 5, characterized in that: The surface of the elastic device (34) is fitted with a stretch spring (31), one end of which is fixed to the surface of the movable plate (33). A top plate (32) is installed on the surface of the movable plate (33), one end of which extends into the interior of the mold groove (102) and slides against the inner wall of the mold groove (102).

7. A mold for fluid polishing and coating as described in claim 1, characterized in that: The fluid polishing mechanism (4) consists of a polishing liquid blasting pump (41), an outlet pipe (42), a spray head (43), and a guide pipe (44). The polishing liquid blasting pump (41) is installed on one side of the mold body (1). The outlet pipe (42) is installed at the output end of the polishing liquid blasting pump (41). The guide pipe (44) is installed on the surface of the outlet pipe (42) by screws. The guide pipe (44) is connected to the interior of the outlet pipe (42).

8. A mold for fluid polishing and coating as described in claim 7, characterized in that: The mold groove (102) is provided with a spray head (43), the bottom end of which extends to the outside of the mold body (1), and one end of the liquid guide tube (44) extends into the interior of the spray head (43) and communicates with the interior of the spray head (43).