A forging trim die

Abstract

The utility model relates to the field of trimming die, concretely relates to a forge trimming die, including lower mould, the top fixedly connected with the guide rod and punch of lower mould, upper die, the outer wall sliding connection of guide rod in upper die, the bottom fixedly connected with trimming cutter of upper die, deslagging mechanism, the deslagging mechanism includes the limiting frame, the limiting frame fixedly connected in the outer wall of punch, the limiting frame inner wall has seted up trimming groove, the left and right sides of limiting frame have seted up mouth of knife groove, the inner wall of limiting frame has articulated the turning plate, the side wall of turning plate is provided with the blanking mechanism, the left side outer wall of turning plate is fixedly connected with the crosspiece. Through the design of deslagging mechanism, can automatically clean the flash after cutting, avoid the flash to remain in the vicinity of punch, influence the subsequent processing, thereby need not again manually pick up the flash, effectively shorten the single processing time, and further improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of trimming dies, and particularly relates to a forging trimming die. Background Art

[0002] A trimming die is a special tooling equipment used in the forging production field to remove the excess flash of forgings. By cooperating with a press and utilizing the shearing action of the die edge, it can accurately cut the irregular flash generated around the forging after forming, making the external dimensions of the forging meet the design requirements. It is a key process equipment to ensure the accuracy of forgings and improve product quality.

[0003] After the trimming die completes the trimming operation on the forging, it is necessary to smoothly remove the formed forging from the punch of the lower die to enter the subsequent processing procedures; and the flash generated during the trimming process will remain inside the die or around the lower die. If not cleaned in time, these flashes may adhere to the die edge, positioning surface or punch surface, which will further affect the positioning accuracy and trimming quality of the next forging.

[0004] At present, most trimming dies on the market usually do not integrate the function of automatically cleaning the flash. After each trimming is completed, the staff needs to manually pick up and clean the residual flash in the die while demolding the forging, which not only increases the labor intensity of the staff, but also prolongs the single processing time and significantly reduces the overall production efficiency. Therefore, it is necessary to invent a forging trimming die to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a forging trimming die. By setting the design of the transverse cutting knife, the cut flash can be transversely cut off, so that the flash forms a two-section "匚" - shaped structure. Then, through the rotation of the rotating plate, the cut flash can be poured into the internal storage of the storage tank for centralized processing of the flash. In this way, the problem that the residual flash needs to be manually picked up and cleaned, thus affecting the production efficiency, can be solved.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution: A forging trimming die, comprising: A lower die, on the top of which a guide rod and a punch are fixedly connected; An upper die, which is slidably connected to the outer wall of the guide rod, and a trimming cutter is fixedly connected to the bottom of the upper die; The slag discharge mechanism includes a limiting frame, which is fixedly connected to the outer wall of the punch. The inner wall of the limiting frame has a cutting groove, and the left and right sides of the limiting frame have cutting grooves. A rotating plate is hinged to the inner wall of the limiting frame. A feeding mechanism is provided on the side wall of the rotating plate. A crossbar is fixedly connected to the left outer wall of the rotating plate. A cylinder is hinged to the left outer wall of the limiting frame. Cross-cutting blades matching the cutting grooves are fixedly connected to the left and right outer walls of the cutting blade.

[0007] Preferably, the feeding mechanism includes a push plate, which is fixedly connected to the side wall of the rotating plate. A push rod is fixedly connected to the side of the push plate near the punch, and the end of the push rod away from the push plate is attached to the side wall of the punch.

[0008] Preferably, the piston rod of the cylinder is hinged to the outer wall of the crossbar.

[0009] Preferably, the cutting groove is a rectangular groove adapted to the profile of the cutting edge of the cutting tool. The groove depth is not less than the extension length of the cutting edge of the cutting tool, the groove width is not less than the cutting edge width of the cutting tool, and a gap of 0.1 to 0.3 mm is reserved between the groove wall of the rectangular groove and the side of the cutting tool.

[0010] Preferably, a storage groove is provided on the top of the lower mold and on both the front and rear sides of the lower mold.

[0011] Preferably, the punch is located in the middle of the top of the lower die, and four sets of guide rods are provided. The four sets of guide rods are respectively vertically arranged at the four corners of the top of the lower die, and are distributed in a rectangular array.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention, through the design of the slag removal mechanism, can automatically clean up the cut-off flash, preventing flash residue from remaining near the punch and affecting subsequent processing. This eliminates the need for manual flash removal, effectively shortening the processing time per cycle and thus improving production efficiency. At the same time, the design of the feeding mechanism can lift the forging sleeve on the outer wall of the punch upward while cleaning the flash, thereby enabling demolding of the forging after trimming. This makes it easier for workers to pick up the forging, further reducing the processing time per cycle and improving work efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the punch and cutting tool of this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the exploded structure; Figure 4 This is a schematic diagram of the overall structure of the limiting frame of this utility model; Figure 5 This is a schematic diagram of the rotating plate unloading structure of this utility model.

[0015] Legend: 1. Lower die; 2. Upper die; 3. Slag removal mechanism; 31. Limiting frame; 32. Trimming groove; 33. Cutting edge groove; 34. Rotating plate; 35. Crossbar; 36. Cylinder; 37. Cross-cutting blade; 4. Guide rod; 5. Punch; 6. Trimming tool; 7. Forging; 8. Flash; 9. Unloading mechanism; 91. Push plate; 92. Push rod; 10. Storage tank. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1 - Figure 5 The forging trimming die shown includes a lower die 1, an upper die 2, and a slag removal mechanism 3. The top of the lower die 1 is fixedly connected with a guide rod 4 and a punch 5. The punch 5 is located in the middle of the top of the lower die 1. There are four sets of guide rods 4, which are vertically arranged at the four corners of the top of the lower die 1 in a rectangular array. The upper die 2 can be guided by the four sets of guide rods 4. Storage slots 10 are provided on the top of the lower die 1 and on the front and rear sides of the lower die 1. The flash 8 after being cut off can be temporarily stored through the storage slots 10 so that the flash 8 can be processed in a centralized manner. The upper mold 2 is slidably connected to the outer wall of the guide rod 4. When in use, the upper mold 2 needs to be installed on a hydraulic device and driven to move up and down by the hydraulic device. The bottom of the upper mold 2 is fixedly connected to a cutting edge cutter 6, which is used to remove excess flash 8 from the outer wall of the forging 7. The slag discharging mechanism 3 includes a limiting frame 31, which is fixedly connected to the outer wall of the punch 5. A trimming groove 32 is provided on the inner wall of the limiting frame 31, and cutting edge grooves 33 are provided on the left and right sides of the limiting frame 31. A rotating plate 34 is hinged to the inner wall of the limiting frame 31. By rotating the rotating plate 34 upward, the flash 8 can be gradually tilted upward, so that the flash 8 can slide down along the outer wall of the tilted rotating plate 34 into the storage tank 10. A blanking mechanism 9 is provided on the side wall of the rotating plate 34. A cross bar 35 is fixedly connected to the left outer wall of the rotating plate 34. A cylinder 36 is hinged to the left outer wall of the limiting frame 31, and the piston rod of the cylinder 36 is hinged to the outer wall of the cross bar 35. Starting the cylinder 36 to push the cross bar 35 upward, at this time the cross bar 35 will push the rotating plate 34 to turn upward on the inner wall of the limiting frame 31. Transverse cutting knives 37 matching the cutting edge grooves 33 are fixedly connected to the left and right outer walls of the trimming tool 6. By driving the transverse cutting knives 37 to move downward through the trimming tool 6, the flash 8 cut from the rotating plate 34 can be transversely cut off, so that the flash 8 forms a two-section "匚"-shaped structure. At the same time, the cutting edge grooves 33 can be used to insert the cutting edges of the transverse cutting knives 37 to prevent the transverse cutting knives 37 from hitting the limiting frame 31.

[0018] As Figure 3 - Figure 5 shown, the blanking mechanism 9 includes a push plate 91, which is fixedly connected to the side wall of the rotating plate 34. A push rod 92 is fixedly connected to the side of the push plate 91 close to the punch 5. When the rotating plate 34 turns upward inside the limiting frame 31, the rotating plate 34 will drive the push plate 91 to gradually move upward from the inside of the cutting edge groove 33. One end of the push rod 92 away from the push plate 91 is in contact with the side wall of the punch 5. When the push plate 91 moves upward, it will drive the push rod 92 to move upward along the outer wall of the punch 5. At this time, the upward moving push rod 92 can be used to lift the forging 7 sleeved on the outer wall of the punch 5, so as to demold the forging 7 after trimming.

[0019] As Figure 3 - Figure 5 shown, the trimming groove 32 is a rectangular groove adapted to the edge profile of the trimming tool 6. The groove depth of the rectangular groove is not less than the length of the cutting edge of the trimming tool 6 extending out, the groove width is not less than the width of the cutting edge of the trimming tool 6, and a gap of 0.1-0.3 mm is reserved between the groove wall of the rectangular groove and the side of the trimming tool 6. After the flash 8 is cut off, continue to control the upper die 2 to move downward. At this time, the trimming tool 6 will move downward inside the trimming groove 32. The trimming groove 32 can prevent the trimming tool 6 from hitting the limiting frame 31.

[0020] The working principle of this practical application is as follows: The forging 7 is fitted onto the outer wall of the punch 5, with its flash 8 positioned above the rotating plate 34. Then, the upper die 2 is driven by hydraulic equipment to slide downwards on the outer wall of the guide rod 4. At this time, the upper die 2 drives the cutting tool 6 to move downwards synchronously. The downward movement of the cutting tool 6 removes the flash 8 from the outer wall of the forging 7. After the flash 8 is removed, the upper die 2 continues to move downwards. The cutting tool 6 then moves downwards inside the cutting groove 32, simultaneously driving the cross-cutting blade 37 to move downwards synchronously. The downward movement of the cross-cutting blade 37 horizontally cuts the flash 8 cut off from the rotating plate 34, forming two sections of the flash 8. The U-shaped structure allows the upper die 2 to slide upward on the outer wall of the guide rod 4 via hydraulic equipment, causing the upper die 2 to move upward and reset. Then, the cylinder 36 is activated to push the crossbar 35 upward. At this time, the crossbar 35 pushes the rotating plate 34, causing the rotating plate 34 to flip upward on the inner wall of the limit frame 31. The cut-off burr 8 will tilt upward as the rotating plate 34 rotates. As the rotating plate 34 rotates, the burr 8 will slide down the tilted outer wall of the rotating plate 34 into the storage tank 10. This allows the burr 8 remaining around the punch 5 to be transferred into the storage tank 10, thus automatically cleaning the cut-off burr 8.

[0021] When the rotating plate 34 flips upward inside the limiting frame 31, the rotating plate 34 will drive the push plate 91 to move upward from inside the knife groove 33. At the same time, the push plate 91 will drive the push rod 92 to move upward against the outer wall of the punch 5. At this time, the forging 7 sleeved on the outer wall of the punch 5 can be lifted upward by the upward push rod 92, so that the forging 7 after the edge is cut can be demolded, making it convenient for the workers to take the forging 7.

[0022] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A forging edge trimming die, characterized in that, include: The lower die (1) has a guide rod (4) and a punch (5) fixedly connected to its top. The upper mold (2) is slidably connected to the outer wall of the guide rod (4), and the bottom of the upper mold (2) is fixedly connected to the cutting tool (6). The slag discharge mechanism (3) includes a limiting frame (31), which is fixedly connected to the outer wall of the punch (5). The inner wall of the limiting frame (31) is provided with a cutting groove (32), and the left and right sides of the limiting frame (31) are provided with knife edge grooves (33). The inner wall of the limiting frame (31) is hinged with a rotating plate (34), and the side wall of the rotating plate (34) is provided with a feeding mechanism (9). The left outer wall of the rotating plate (34) is fixedly connected with a crossbar (35), and the left outer wall of the limiting frame (31) is hinged with a cylinder (36). The left and right outer walls of the cutting tool (6) are fixedly connected with cross-cutting blades (37) that match the knife edge grooves (33).

2. The forging trimming die according to claim 1, characterized in that: The feeding mechanism (9) includes a push plate (91), which is fixedly connected to the side wall of the rotating plate (34). A push rod (92) is fixedly connected to the side of the push plate (91) near the punch (5). The end of the push rod (92) away from the push plate (91) is attached to the side wall of the punch (5).

3. The forging trimming die according to claim 1, characterized in that: The piston rod of the cylinder (36) is hinged to the outer wall of the crossbar (35).

4. A forging edge trimming die according to claim 1, characterized in that: The cutting groove (32) is a rectangular groove that is adapted to the profile of the cutting edge of the cutting tool (6). The groove depth is not less than the extension length of the cutting edge of the cutting tool (6), the groove width is not less than the cutting edge width of the cutting tool (6), and a gap of 0.1 to 0.3 mm is reserved between the groove wall of the rectangular groove and the side of the cutting tool (6).

5. A forging edge trimming die according to claim 1, characterized in that: Storage slots (10) are provided on the top of the lower mold (1) and on the front and rear sides of the lower mold (1).

6. A forging edge trimming die according to claim 1, characterized in that: The punch (5) is located in the middle of the top of the lower die (1). There are four sets of guide rods (4). The four sets of guide rods (4) are respectively vertically arranged at the four corners of the top of the lower die (1) in a rectangular array.

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