Trimming die for metal product production
By using a cutting mold and grinding assembly consisting of fixed and movable parts, combined with a negative pressure suction cup and electric tools, the problem of uneven cross-section after cutting sheet metal is solved, automated grinding is achieved, and the assembly speed of metal products is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-10
AI Technical Summary
In current metal product manufacturing, the cut edges of sheet metal are uneven, requiring manual grinding, which affects assembly speed.
The edge-cutting mold consists of two parts: a fixed part and a movable part. Combined with an edge-grinding component, it uses a negative pressure suction cup to adsorb the excess part and then grinds it smooth with an electric tool, eliminating the need for manual grinding.
It enables rapid grinding of the sheet metal cross-section, improves assembly speed, reduces manpower consumption, and enhances production efficiency.
Smart Images

Figure CN223981044U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal product processing technology, specifically relating to a metal product manufacturing edge trimming mold. Background Technology
[0002] Metal products refer to products made primarily of metal, and are widely used in various fields such as construction, transportation, machinery, electronics, and home furnishings. Depending on their intended use and processing methods, metal products can be processed in various ways, including casting, forging, welding, cutting, stamping, and extrusion. During manufacturing, surface treatments such as spraying, galvanizing, and oxidation are often required to improve the metal's corrosion resistance and aesthetics.
[0003] Sheet metal is indispensable in metal products. Before being used in assembly, sheet metal usually needs to be processed using cutting dies. However, after cutting, the cross-section of sheet metal often has a lot of irregular protrusions due to metal fatigue, which is not conducive to subsequent assembly operations. Workers still need to manually grind it by hand, which further reduces the assembly speed of metal products. Utility Model Content
[0004] The purpose of this utility model is to provide a cutting mold for metal product manufacturing, so as to solve the problem that the cross-section of metal sheet is uneven in the prior art, which may require manual grinding and is not convenient for subsequent rapid assembly.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A metal product manufacturing edge trimming mold includes a mounting base, a stamping cylinder, and a cutting block. The cutting block has a triangular cross-section. A fixed bottom module and a movable bottom mold assembly are sequentially arranged on the mounting base, with the fixed bottom module and movable bottom mold assembly positioned symmetrically on the left and right sides. The fixed bottom module is fixedly mounted on the mounting base. The side of the first cutting bevel near the movable bottom mold assembly is designated as the first cutting bevel. The movable bottom mold assembly includes a movable bottom module movably mounted on the mounting base. A mounting support plate is fixedly mounted on the side of the mounting base. At least two translation cylinders connected to the movable bottom module and used to control the translation of the movable bottom module are mounted on the side of the mounting support plate. The side of the movable bottom module near the fixed bottom module is designated as the second cutting bevel. Several negative pressure suction cups are embedded on the side of the second cutting bevel. An mounting groove is provided on the mounting base, and a grinding assembly is installed in the mounting groove. The grinding assembly is used to grind the cut surface of the sheet metal after the movable bottom mold assembly retracts.
[0007] Preferably, the negative pressure suction cup is flush with the surface of the second punching bevel, and the movable bottom module is equipped with a vacuum pump that is connected to the negative pressure suction cup via an air guide pipe.
[0008] Preferably, after the fixed bottom module and the movable bottom module abut together, the first punching bevel and the second punching bevel form a V-shaped structure that matches the cross-section of the punching block.
[0009] Preferably, the edge grinding assembly includes a guide rail fixedly mounted on the inner side wall of the mounting groove, a guide block slidably mounted on the outside of the guide rail, a slider slidably mounted on the outside of the guide block, a mounting box fixedly mounted on the slider, a drive motor slidably mounted inside the mounting box, a rotating shaft connected to the output end of the drive motor, and a grinding wheel fixedly mounted on the outside of the rotating shaft.
[0010] Preferably, the guide block translates along the length of the guide rail outside the guide rail, and the slider translates along the height of the guide block outside the guide block.
[0011] Preferably, the drive motor is located inside the mounting box and moves along the length of the mounting box.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model divides the lower mold in the prior art into two parts: a fixed part and a movable part. Then, with the help of the edge grinding component, it can quickly grind the cross-section of the main body of the sheet metal. With the help of electric tools, it saves manpower and can further improve the assembly and forming speed of metal products.
[0014] 2. In this utility model, after the excess part of the plate is cut off, the vacuum pump is started, and the negative pressure suction cups on the two surfaces of the punching bevel can adsorb the cut excess part. This avoids the influence of the tilting of the excess part of the plate on the edge grinding component after the fixed bottom module and the movable bottom mold assembly are separated. The fit is tight and meticulous, and they do not interfere with each other. Attached Figure Description
[0015] Figure 1 This is a side view of the present invention;
[0016] Figure 2 for Figure 1 Rear view of the main structure shown;
[0017] Figure 3 This is a schematic diagram showing the coordinated operation of the fixed bottom module, movable bottom mold assembly, and edge grinding assembly of this utility model.
[0018] Figure 4 This is a schematic diagram of the edge grinding assembly of this utility model.
[0019] In the diagram: 1. Mounting base; 11. Mounting slot; 2. Stamping cylinder; 3. Punching block; 4. Fixed bottom module; 41. Punching bevel one; 5. Movable bottom mold assembly; 51. Movable bottom module; 511. Punching bevel two; 52. Mounting support plate; 53. Translation cylinder; 54. Vacuum pump; 55. Negative pressure suction cup; 6. Edge grinding assembly; 61. Guide rail; 62. Guide block; 63. Slider; 64. Mounting box; 65. Drive motor; 66. Rotating shaft; 67. Grinding wheel. Detailed Implementation
[0020] 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.
[0021] Reference Figures 1-3 As shown, this utility model provides a metal product manufacturing trimming mold, including a mounting base 1, a stamping cylinder 2, and a cutting block 3. The stamping cylinder 2 is not suspended; its fixing method is a mature existing technology and will not be described in detail here. The cutting block 3 has a triangular cross-section. A fixed bottom module 4 and a movable bottom mold assembly 5 are sequentially arranged on the mounting base 1. The fixed bottom module 4 and the movable bottom mold assembly 5 are arranged symmetrically on the left and right sides. The fixed bottom module 4 is fixedly installed on the mounting base 1. The side of the cutting bevel 41 closest to the movable bottom mold assembly 5 is designated as the cutting bevel 41. The movable bottom mold assembly 5 includes a movable bottom module 51 movably mounted on the mounting base 1. A mounting plate 52 is fixedly installed on the side. At least two translation cylinders 53 connected to the movable bottom module 51 are installed on the side of the mounting plate 52 to control the translation of the movable bottom module 51. The specific number can be adjusted according to the density characteristics of the metal sheet to ensure that it always has good adsorption capacity for the cut-off excess part, so as to avoid unstable adsorption or weak adsorption. The side of the movable bottom module 51 near the fixed bottom module 4 is set as the second punching bevel 511. Several negative pressure suction cups 55 are embedded on the side of the second punching bevel 511. The negative pressure suction cups 55 can adsorb the cut-off excess part of the sheet when the movable bottom module 51 is removed, so as to avoid its arbitrary tilting and the impact on the grinding edge assembly 6 protruding for grinding.
[0022] The mounting base 1 has a mounting groove 11, and a grinding component 6 is installed in the mounting groove 11. The grinding component 6 is used to grind the cut surface of the plate after the movable bottom mold component 5 retracts.
[0023] In a further embodiment, refer to Figure 2 andFigure 3 The negative pressure suction cup 55 is flush with the surface of the punching inclined surface 511, and the movable bottom module 51 is equipped with a vacuum pump 54 that is connected to the negative pressure suction cup 55 through an air guide pipe.
[0024] In this embodiment, the negative pressure suction cup 55 is not protruding and is flush with the surface of the second punching bevel 511 to ensure its adsorption capacity for the excess part of the cut plate. The adsorption and release of the negative pressure suction cup 55 depends on the working state of the vacuum pump 54 and can be adjusted flexibly.
[0025] In a further embodiment, refer to Figure 1 After the fixed bottom module 4 and the movable bottom module 51 abut together, the first punching bevel 41 and the second punching bevel 511 form a V-shaped structure that matches the cross-section of the punching block 3.
[0026] In this embodiment, the combined fixed bottom module 4 and movable bottom mold assembly 5 form a conventional lower mold in the prior art. When combined with the punching and cutting block 3, the sheet metal can be punched and trimmed to remove excess material.
[0027] In a further embodiment, refer to Figure 3 and Figure 4 The edge grinding assembly 6 includes a guide rail 61 fixedly installed on the inner side wall of the mounting groove 11, a guide block 62 slidably installed on the outside of the guide rail 61, a slider 63 slidably installed on the outside of the guide block 62, a mounting box 64 fixedly installed on the slider 63, a drive motor 65 slidably installed inside the mounting box 64, a rotating shaft 66 connected to the output end of the drive motor 65, and a grinding wheel 67 fixedly installed on the outside of the rotating shaft 66.
[0028] The guide block 62 translates along the length of the guide rail 61 outside the guide rail 61, and the guide rail 61 moves along the length of the guide rail 61. Figure 3 The longitudinal direction of the mounting slot 11 is set, the translation direction of the drive motor 65 is consistent with the extension direction of the translation cylinder 53, and the slider 63 translates along the height direction of the guide block 62 outside the guide block 62; the drive motor 65 translates along the length direction of the mounting box 64 inside the mounting box 64, which is a three-dimensional translation, similar to the existing "XYZ" three-axis adjustment component. The sliding translation is assisted by the existing electric slide rail operation and assembly method, which will not be described in detail here.
[0029] In this embodiment, after the edge grinding component 6 extends, the grinding wheel 67 is placed against the cross-section of the main body of the sheet metal. When the drive motor 65 is started, it can drive the grinding wheel 67 to rotate. Then, the guide block 62 moves back and forth along the length of the guide rail 61, so as to achieve the purpose of electric grinding of the cross-section of the main body of the metal sheet metal.
[0030] The working principle of this utility model is as follows: The lower mold in the existing technology is divided into two parts, one fixed and one movable. When stamping and cutting the edge of the sheet metal, the fixed bottom module 4 and the movable bottom mold assembly 5 are combined together. The sheet metal is placed on the fixed bottom module 4 and the movable bottom module 51. Then, the output end of the stamping cylinder 2 drives the punching block 3 to descend quickly, and the excess part of the sheet metal is cut off. After that, the vacuum pump 54 is started, and the negative pressure suction cup 55 on the surface of the punching inclined surface 511 is used to adsorb the cut-off excess part. Then, the output end of the translation cylinder 53 retracts, driving the movable bottom module 51 away from the punching block 3 and the fixed bottom module 4.
[0031] Afterwards, slider 63 rises to its highest position, grinding wheel 67 is brought to a height flush with the main cross-section of the sheet metal, drive motor 65 moves horizontally within mounting box 64, grinding wheel 67 moves horizontally towards the main cross-section of the sheet metal, and finally comes into contact with the main cross-section of the sheet metal. Then drive motor 65 starts, guide block 62 moves horizontally back and forth on guide rail 61, thus achieving the purpose of smoothing the main cross-section of the sheet metal. After that, edge grinding assembly 6 retracts into mounting slot 11, punching block 3 moves upward with punching cylinder 2, and worker picks up the main sheet metal. Then negative pressure suction cup 55 releases the excess part of the sheet metal cut off, which is manually removed. Shifting cylinder 53 drives movable bottom module 51 to return to the position where it is in contact with fixed bottom module 4. Fixed bottom module 4 and movable bottom mold assembly 5 merge, so that it can be put into the next process of punching and edge cutting operation of new sheet metal.
[0032] The grinding and smoothing of the main cross-section of the sheet metal is done with the help of electric tools, which saves manpower and can smooth the main cross-section of the sheet metal without removing the sheet metal. This is more efficient and convenient, and greatly facilitates the subsequent assembly operation of the sheet metal. There is no need for workers to hold the sheet metal and grind it manually. This will further improve the assembly and forming speed of metal products.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A trimming die for producing a metal product, comprising a mounting base (1), a punch cylinder (2) and a punch block (3), said punch block (3) being triangular in cross section, characterized in that, The installation base (1) is sequentially provided with a fixed bottom module (4) and a movable bottom module assembly (5), the fixed bottom module (4) and the movable bottom module assembly (5) are correspondingly arranged on the left and right sides, the fixed bottom module (4) is fixedly installed on the installation base (1), and one side of the fixed bottom module (4) close to the movable bottom module assembly (5) is provided as a punching inclined surface one (41). The movable bottom module assembly (5) comprises a movable bottom module (51) movably arranged on the installation base (1), and a mounting support plate (52) is fixedly installed on the side edge of the installation base (1), a side surface of the mounting support plate (52) is provided with at least two translation air cylinders (53) connected with the movable bottom module (51) and used for controlling translation of the movable bottom module (51), and one side of the movable bottom module (51) close to the fixed bottom module (4) is provided as a punching inclined surface two (511), and a plurality of negative pressure suction cups (55) are embedded on the side surface of the punching inclined surface two (511). An installation groove (11) is formed in the installation base (1), and an edge grinding assembly (6) is installed in the installation groove (11), and the edge grinding assembly (6) is used for grinding the section of the cut-off plate after the movable bottom module assembly (5) retreats.
2. A trim die for producing a metal article as defined in claim 1, characterized by: The negative pressure suction cup (55) is flush with the surface of the punching inclined surface two (511), and a vacuum pump (54) connected with the negative pressure suction cup (55) through a gas guide pipe is embedded in the movable bottom module (51).
3. A trim die for producing a metal article as defined in claim 1, wherein: After the fixed bottom module (4) and the movable bottom module (51) abut, the punching inclined surface one (41) and the punching inclined surface two (511) form a V-shaped structure matched with the cross section of the punching block (3).
4. A trim die for producing a metal article as defined in claim 1, wherein: The edge grinding assembly (6) comprises a guide rail (61) fixedly installed on the inner side wall of the installation groove (11), a guide block (62) slidably installed outside the guide rail (61), a sliding block (63) slidably installed outside the guide block (62), an installation box (64) fixedly installed on the sliding block (63), a driving motor (65) slidably installed in the installation box (64), a rotating shaft (66) connected with the output end of the driving motor (65), and a grinding abrasive wheel (67) fixedly installed outside the rotating shaft (66).
5. A trim die for producing a metal article as defined in claim 4, wherein: The guide block (62) translates along the length direction of the guide rail (61) outside the guide rail (61), and the sliding block (63) translates along the height direction of the guide block (62) outside the guide block (62).
6. A trim die for producing a metal article as defined in claim 5, wherein: The driving motor (65) translates along the length direction of the installation box (64) in the installation box (64).