A fine blanking mechanism based on fine blanking part machining

Abstract

The utility model relates to the field of metal processing machinery manufacturing discloses a fine punching mechanism based on fine punching part machining, including support leg, the top of support leg installs fine punching mechanism, two the top of support leg fixedly connected with press lower workbench, the top of press lower workbench installs cleaning mechanism, the top of press lower workbench fixedly connected with protective housing, the fine punching mechanism includes lower die holder, the bottom fixedly connected in the top of press lower workbench of lower die holder, the top fixedly connected with lower tie plate of lower die holder, the top fixedly connected with lower fixed plate of lower tie plate, the top fixedly connected with female die tie plate of lower fixed plate. In the utility model, realize the accurate blanking under the three -way pressure restraint, produce the part of section neat, high accuracy, replace the expensive three -action fine punching press, reduce the equipment investment cost and failure rate.

Description

Technical Field

[0001] This utility model relates to the field of metal processing machinery manufacturing, and in particular to a fine blanking mechanism based on fine blanking parts processing. Background Technology

[0002] A fine blanking press is a device specifically designed for precision blanking. By precisely controlling the blanking force, blank holder force, and counter-clamping force, triaxial compressive stress is formed when the material is separated, achieving high-precision and high-surface-quality processing. It can improve the dimensional accuracy and surface finish of parts, and achieve efficient continuous production through automated design, while reducing energy consumption and floor space. It is the core equipment of the fine blanking process.

[0003] A fine blanking mechanism for fine blanking parts processing consists of multiple structural parts. A high-rigidity welded body ensures stability, hydraulic system including main cylinder and edge-pressing cylinder provides the required pressure, dual guide mechanism ensures motion accuracy, intelligent control adjusts parameters and achieves automation, and auxiliary devices include feeding, unloading and lubrication, which together ensure efficient and stable processing.

[0004] In existing technologies, fine blanking processes mainly rely on three-action fine blanking presses and fine blanking dies. Fine blanking presses are expensive, especially those from Faintoil and Mori, which cost millions or even tens of millions of yuan, thus raising the entry barrier for the fine blanking industry. Dedicated fine blanking presses have complex hydraulic systems, and oil leakage is common, resulting in a high failure rate. Therefore, a fine blanking mechanism based on the processing of fine blanking parts is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fine blanking mechanism based on fine blanking parts processing, aiming to improve the problem that the high investment cost and long turnaround time of the existing three-action fine blanking press, which leads to a higher barrier to entry into the fine blanking industry.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fine blanking mechanism for fine blanking parts processing includes legs, a fine blanking mechanism mounted on the top of the legs, a lower worktable of a press fixedly connected to the top of the two legs, a cleaning mechanism mounted on the top of the lower worktable of the press, and a protective shell fixedly connected to the top of the lower worktable of the press. The fine blanking mechanism includes a lower die base, the bottom end of which is fixedly connected to the top end of the lower worktable of the press. A lower pad is fixedly connected to the top end of the lower die base, a lower fixing plate is fixedly connected to the top end of the lower pad, a die pad is fixedly connected to the top end of the lower fixing plate, a die fixing plate is fixedly connected to the top end of the die pad, a die fixing plate is slidably connected to the inner wall of the die fixing plate, a counter-pressure block is slidably connected to the inner wall of the die pad, a punch is slidably connected to the inner wall of the counter-pressure block, a lower ejector rod is fixedly connected to the bottom end of the die fixing plate, and a lower pressing assembly is provided on the inner wall of the support leg. As a further description of the above technical solution: The pressing assembly includes an upper mold base, the top end of which is fixedly connected to the inner wall of the support leg, an upper pad plate is fixedly connected to the bottom end of the upper mold base, a punch fixing plate is fixedly connected to the bottom end of the upper pad plate, a gear ring plate back plate is fixedly connected to the bottom end of the punch fixing plate, a nitrogen spring assembly is fixedly connected to the inner wall of the upper mold base, and a punch and die are fixedly connected to the inner wall of the upper pad plate. As a further description of the above technical solution: The cleaning mechanism includes a motor, the outer wall of which is fixedly connected to the inner wall of the protective shell. A rotating column is fixedly connected to the drive end of the motor. A connecting rod is slidably connected to the outer wall of the rotating column. A sliding block is fixedly connected to the rear side of the connecting rod. A connecting arm is fixedly connected to the bottom end of the sliding block. A sliding plate is fixedly connected to the outer wall of the connecting arm. Two slide rails are fixedly connected to the inner wall of the protective shell. As a further description of the above technical solution: The outer wall of the sliding block is slidably connected to the outer walls of the two slide rails, and the outer wall of the connecting arm is slidably connected to the inner wall of the protective shell. As a further description of the above technical solution: The top of the punch and die is fixedly connected to an upper push rod, and the outer wall of the punch and die is slidably connected to a toothed ring plate insert. As a further description of the above technical solution: The outer wall of the gear ring plate insert is slidably connected to the inner wall of the gear ring plate back plate, and the driving end of the nitrogen spring assembly is fixedly connected to the top of the punch fixing plate. As a further description of the above technical solution: Two nozzles are fixedly connected to the right side of the sliding plate, and a press ejector is fixedly connected to the bottom end of the support leg; As a further description of the above technical solution: A cylinder is fixedly connected to the right side of the press, and a counter-pressure regulating valve is fixedly connected to the right side of the cylinder.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the gear ring plate insert and the counter-pressure block are driven by a nitrogen spring assembly, thereby achieving precise blanking of materials under triaxial pressure constraints, producing parts with smooth cross-sections and high precision, replacing the expensive three-action fine blanking press, and reducing equipment investment costs and failure rate.

[0008] 2. In this utility model, with the cooperation of a motor, a rotating column, a connecting rod, a sliding block, a slide rail, a connecting arm, and a sliding plate, the motor drives the rotating column to rotate, causing the connecting rod to drive the sliding block to make a smooth reciprocating motion along the slide rail, thereby causing the nozzle to make a reciprocating motion, so as to improve the problem of residual debris after stamping affecting the subsequent processing accuracy and equipment operation. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a fine blanking mechanism based on the fine blanking parts processing proposed in this utility model; Figure 2 This is a schematic diagram of the lower worktable of a press for a fine blanking mechanism based on fine blanking parts processing proposed in this utility model; Figure 3 This is a schematic diagram of the lower die holder of a fine blanking mechanism based on the fine blanking parts processing proposed in this utility model; Figure 4 This is a schematic diagram of the rotating column of a fine blanking mechanism based on the fine blanking parts processing proposed in this utility model.

[0010] Legend: 1. Support leg; 2. Fine blanking mechanism; 201. Lower die holder; 202. Lower backing plate; 203. Lower fixing plate; 204. Die backing plate; 205. Die fixing plate; 206. Die module; 207. Counter-pressure block; 208. Punch; 209. Lower ejector pin; 210. Lower pressing assembly; 2101. Upper die holder; 2102. Upper backing plate; 2103. Punch fixing plate; 2104. Gear ring plate backing plate; 2105. 1. Nitrogen spring assembly; 2106. Punch and die; 2107. Upper ejector rod; 2108. Gear ring plate insert; 3. Lower worktable of the press; 4. Cleaning mechanism; 401. Motor; 402. Rotating column; 403. Connecting rod; 404. Sliding block; 405. Connecting arm; 406. Sliding plate; 407. Slide rail; 5. Protective shell; 6. Nozzle; 7. Press ejector; 8. Cylinder; 9. Anti-ejection force regulating valve. Detailed Implementation

[0011] 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.

[0012] Reference Figures 1 to 3 The present invention provides an embodiment of a fine blanking mechanism for fine blanking parts processing, comprising a support leg 1, which serves as the equipment support base, and a fine blanking mechanism 2 is installed at its top to perform the core stamping action. The tops of the two support legs 1 are fixedly connected to the lower worktable 3 of the press to form a horizontal bearing platform. A cleaning mechanism 4 is installed at the top of the lower worktable 3 of the press for cleaning debris after stamping. A protective shell 5 is fixedly connected at the top of the lower worktable 3 of the press to provide safety protection and structural encapsulation.

[0013] The fine blanking mechanism 2 includes a lower die base 201. The bottom end of the lower die base 201 is fixed to the top of the lower worktable 3 of the press, serving as the lower die base. A lower pad 202 is fixed to the top of the lower die base 201 to distribute the stamping load. A lower fixing plate 203 is fixed to the top of the lower pad 202 to position the die assembly. A die pad 204 is fixed to the top of the lower fixing plate 203 to strengthen the die support rigidity. A die fixing plate 205 is fixed to the top of the die pad 204, forming a sliding guide structure for the die assembly 206. The inner... The inner wall of the cavity module 206 is slidably connected to achieve precise positioning and replacement of the cavity. The inner wall of the cavity module 206 is slidably connected to the counter-pressure block 207, which provides reverse support force to prevent material tearing. The inner wall of the counter-pressure block 207 is slidably connected to the punch 208, which directly acts on the material to complete the punching. The bottom end of the cavity fixing plate 205 is fixed to the lower ejector rod 209, which is connected to the press ejector 7 to eject the finished product. The inner wall of the support leg 1 is provided with a pressing component 210, which serves as the upper mold drive unit.

[0014] Reference Figure 2 and Figure 4 The pressing assembly 210 includes an upper die base 2101. The top end of the upper die base 2101 is fixed to the inner wall of the support leg 1 to form an upper die mounting base. The bottom end of the upper die base 2101 is fixed to an upper pad plate 2102 to transmit the stamping load. The bottom end of the upper pad plate 2102 is fixed to a punch fixing plate 2103 to position the punch assembly. The bottom end of the punch fixing plate 2103 is fixed to a gear ring plate back plate 2104 to support the gear ring plate insert 2108. The inner wall of the upper die base 2101 is fixed to a nitrogen spring assembly 2105, which provides the gear ring blanking force. The inner wall of the upper pad plate 2102 is fixed to a punch and die 2106, which serves as a punching execution component.

[0015] Reference Figures 2 to 4 The cleaning mechanism 4 includes a motor 401, the outer wall of which is fixed to the inner wall of the protective shell 5, providing a power source. A rotating column 402 is fixed to the drive end of the motor 401, converting rotational motion into linear motion. A connecting rod 403 is slidably connected to the outer wall of the rotating column 402, generating reciprocating motion as the rotating column 402 rotates eccentrically. A sliding block 404 is fixed to the rear side of the connecting rod 403, transmitting the motion of the connecting rod 403 to the cleaning assembly. A connecting arm 405 is fixed to the bottom end of the sliding block 404, extending the range of motion. A sliding plate 406 is fixed to the right side of the connecting arm 405, mounting the cleaning nozzle 6. Two slide rails 407 are fixed to the inner wall of the protective shell 5, providing a guide trajectory for the sliding block 404. The two slide rails 407 are slidably connected to the outer wall of the sliding block 404 to ensure smooth movement. The punch and die 2... The top of 106 is fixed with an upper ejector rod 2107, which is connected to the press feeding device for unloading. The outer wall of the punch and die 2106 is slidably connected with a gear ring plate insert 2108, which is embedded in the material surface to form a pressure edge constraint. The outer wall of the gear ring plate insert 2108 is slidably connected with a gear ring plate back plate 2104, realizing the replaceable design of the gear ring plate insert 2108. The driving end of the nitrogen spring assembly 2105 is fixed to the top of the punch fixing plate 2103, directly driving the punch to press down. Two nozzles 6 are fixed to the right side of the sliding plate 406. The nozzles 6 spray compressed air to clean up debris. The bottom end of the support leg 1 is fixed with a press ejector 7, which is connected to an external air source to provide ejection force. The right side of the press ejector 7 is fixed with a cylinder 8, which adjusts the counter-ejection force output. The right side of the cylinder 8 is fixed with a counter-ejection force regulating valve 9, which precisely controls the supporting force of the counter-pressure block 207.

[0016] Working principle: When the fine blanking mechanism 2 is working, the lower pressing component 210 of the upper die and the fine blanking component of the lower die work together: the upper die base 2101 is fixed to the inner wall of the support leg 1, and the nitrogen spring group 2105 on its inner wall drives the punch fixing plate 2103 to move downward, which drives the upper pad plate 2102, the gear ring plate back plate 2104 and the gear ring plate insert 2108 to move downward synchronously. The gear ring plate insert 2108 first contacts and presses against the upper surface of the material, and uses the rectangular groove to embed the material to form a constraint to prevent the material from flowing laterally; at the same time, the lower die's counter pressure block 207, under the control of the cylinder 8 and the counter force regulating valve 9, obtains stable counter pressure through the lower ejector rod 209, presses against the lower surface of the material, and forms a resultant force with the upper die gear ring, so that the material is in a triaxial pressure state. Subsequently, the punch and die 2106 continue to move downwards with the upper die, cooperating with the lower die's die 206 and punch 208 to complete the blanking. During the blanking process, components such as the lower backing plate 202 and the die backing plate 204 distribute the load, ensuring structural stability. After blanking is completed, the press ejector 7 pushes the counter-pressure block 207 through the lower ejector rod 209 to eject the part. The upper ejector rod 2107, in conjunction with the press's material discharge device, removes the waste material from the upper die, completing one fine blanking cycle.

[0017] The cleaning mechanism 4 is activated after fine blanking. The motor 401 drives the rotating column 402 to rotate. When the rotating column 402 drives the connecting rod 403 from the front to the rear, the connecting rod 403 pulls the sliding block 404 to slide backward along the slide rail 407. The sliding block 404 drives the sliding plate 406 to move backward through the connecting arm 405. The nozzle 6 on the right side of the sliding plate 406 moves backward and sprays compressed air to clean the debris on the lower worktable 3 of the press and the surface of the mold. Conversely, when the rotating column 402 drives the connecting rod 403 from the rear to the front, the connecting rod 403 pushes the sliding block 404 to slide forward along the slide rail 407. The connecting arm 405 drives the sliding plate 406 to move forward, and the nozzle 6 moves forward synchronously to continue to blow clean the uncleaned area. Through reciprocating motion, the processing area is thoroughly cleaned to ensure that the next processing is not affected by debris.

[0018] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fine blanking mechanism based on fine blanking part processing, comprising a support leg (1), characterized in that: The top of the support leg (1) is equipped with a fine punching mechanism (2), the top of the two support legs (1) is fixedly connected to the lower worktable (3) of the press, the top of the lower worktable (3) of the press is equipped with a cleaning mechanism (4), and the top of the lower worktable (3) of the press is fixedly connected to a protective shell (5). The fine blanking mechanism (2) includes a lower die base (201), the bottom end of which is fixedly connected to the top end of the lower worktable (3) of the press. A lower pad (202) is fixedly connected to the top end of the lower die base (201), a lower fixing plate (203) is fixedly connected to the top end of the lower pad (202), a die pad (204) is fixedly connected to the top end of the lower fixing plate (203), a die fixing plate (205) is fixedly connected to the top end of the die pad (204), a die fixing plate (205) is slidably connected to the inner wall of the die fixing plate (205), a die module (206) is slidably connected to the inner wall of the die module (206), a counter-pressure block (207) is slidably connected to the inner wall of the counter-pressure block (207), a punch (208) is slidably connected to the inner wall of the counter-pressure block (207), a lower ejector rod (209) is fixedly connected to the bottom end of the die fixing plate (205), and a lower pressing component (210) is provided on the inner wall of the support leg (1).

2. The fine blanking mechanism based on fine blanking part processing according to claim 1, characterized in that: The pressing assembly (210) includes an upper mold base (2101), the top end of which is fixedly connected to the inner wall of the support leg (1), the bottom end of which is fixedly connected to an upper pad plate (2102), the bottom end of which is fixedly connected to a punch fixing plate (2103), the bottom end of which is fixedly connected to a gear ring plate back plate (2104), the inner wall of which is fixedly connected to a nitrogen spring assembly (2105), and the inner wall of which is fixedly connected to a punch and die (2106).

3. The fine blanking mechanism based on fine blanking part processing according to claim 1, characterized in that: The cleaning mechanism (4) includes a motor (401), the outer wall of which is fixedly connected to the inner wall of the protective shell (5). A rotating column (402) is fixedly connected to the drive end of the motor (401). A connecting rod (403) is slidably connected to the outer wall of the rotating column (402). A sliding block (404) is fixedly connected to the rear side of the connecting rod (403). A connecting arm (405) is fixedly connected to the bottom end of the sliding block (404). A sliding plate (406) is fixedly connected to the outer wall of the connecting arm (405). Two slide rails (407) are fixedly connected to the inner wall of the protective shell (5).

4. A fine blanking mechanism based on fine blanking part processing according to claim 3, characterized in that: The outer wall of the sliding block (404) is slidably connected to the outer wall of the two slide rails (407), and the outer wall of the connecting arm (405) is slidably connected to the inner wall of the protective shell (5).

5. A fine blanking mechanism based on fine blanking part processing according to claim 2, characterized in that: The top of the punch and die (2106) is fixedly connected to an upper ejector rod (2107), and the outer wall of the punch and die (2106) is slidably connected to a gear ring plate insert (2108).

6. A fine blanking mechanism based on fine blanking part processing according to claim 5, characterized in that: The outer wall of the gear ring plate insert (2108) is slidably connected to the inner wall of the gear ring plate back plate (2104), and the driving end of the nitrogen spring assembly (2105) is fixedly connected to the top of the punch fixing plate (2103).

7. A fine blanking mechanism based on fine blanking part processing according to claim 3, characterized in that: Two nozzles (6) are fixedly connected to the right side of the sliding plate (406), and a press ejector (7) is fixedly connected to the bottom end of the support leg (1).

8. A fine blanking mechanism based on fine blanking part processing according to claim 7, characterized in that: A cylinder (8) is fixedly connected to the right side of the press ejector (7), and a counter-pressure regulating valve (9) is fixedly connected to the right side of the cylinder (8).

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