Stamping die quick replacement structure with positioning function
Patent Information
- Application Number
- CN202522148068.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-11
AI Technical Summary
[0003]在冲压加工领域，冲压模具的精准定位与稳定固定是确保产品质量和生产效率的关键因素，在模具定位方面，传统的定位方法往往缺乏有效的预定位机制，操作人员在将冲压模具放置到加工台上时，难以快速且准确地将模具定位到加工台的中心位置，通常需要经过多次调整和测量，这不仅耗费大量的时间和人力，还容易因人为操作误差导致模具定位不准确，进而影响后续冲压加工的精度，造成产品出现尺寸偏差、表面缺陷等问题，降低产品的合格率，因此，本技术领域人员提供一种具有预定位功能的冲压模具快速更换结构以解决上述背景技术中所提出的问题
本实用新型通过设置有预定位机构和加强机构，先将冲压模具通过支撑腿滑动在加工台的上顶端，接着将支撑腿移动至加工台的上顶端中心位置处，此时可以将定位板与磁吸块之间解除磁吸，接着定位板翻转九十度，并位于U型定位架的内部，由于定位板位于支撑腿的中心处，因此当定位板与U型定位架套接后能够实现定位的效果，确保支撑腿以及冲压模具位于加工台的上顶端中心位置，接着采用加强机构来对支撑腿的另外两端进行限位，而四个定位杆的同步运动，能够有效确保冲压模具在工作的过程中不会产生偏移，同时在需要移出支撑腿时，可以将定位杆翻转九十度，从而确保定位杆不会阻挡到支撑腿的移动。
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Figure CN224808280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a quick-change structure for stamping dies with a pre-positioning function. Background Technology
[0002] Stamping technology has been widely used in many industries such as automobiles, electronics, home appliances, and aerospace due to its significant advantages such as high production efficiency, good material utilization, high product precision, and ability to form complex-shaped parts. In automobile manufacturing, a large number of body panels, chassis parts, etc. are formed by stamping. The quality of stamping dies directly determines the dimensional accuracy, surface quality of automobile parts, and the accuracy of vehicle assembly, which in turn affects the performance, safety, and appearance quality of automobiles.
[0003] In the field of stamping, the precise positioning and stable fixing of stamping dies are key factors in ensuring product quality and production efficiency. Traditional positioning methods often lack an effective pre-positioning mechanism. When placing the stamping die on the processing table, operators often find it difficult to quickly and accurately position the die at the center of the table, requiring multiple adjustments and measurements. This not only consumes a significant amount of time and manpower but also easily leads to inaccurate die positioning due to human error, thus affecting the accuracy of subsequent stamping processes and causing problems such as dimensional deviations and surface defects, reducing the product yield. Therefore, those skilled in the art provide a quick-change structure for stamping dies with pre-positioning functionality to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a quick-change structure for stamping dies with a pre-positioning function, thereby solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a quick-change structure for stamping dies with pre-positioning function, including a processing table, with columns fixedly connected to the four corners of the upper top of the processing table, and a top plate fixedly connected to the end of the four columns away from the processing table. A processing mechanism for processing the product is provided at the lower top of the top plate. Reinforcing mechanisms for preventing the die from shifting during processing are provided on both sides of the outer wall of the processing table. Two sets of pre-positioning mechanisms for positioning the die are symmetrically arranged at the upper top of the processing table.
[0006] Preferably, the processing mechanism includes two hydraulic push rods symmetrically fixedly connected to the lower top end of the top plate, and the telescopic ends of the two hydraulic push rods are jointly fixedly connected to a lower pressure plate, and the lower top end of the lower pressure plate is symmetrically fixedly connected to two punching heads.
[0007] Preferably, the upper top of the processing table has two symmetrically slidably connected support legs, and the upper top of the two support legs is fixedly connected to a stamping die. The upper top of the stamping die has two symmetrically opened stamping holes that cooperate with the stamping head to stamp the product.
[0008] Preferably, each pre-positioning mechanism includes a magnetic block that is slidably sleeved on the side of the two support legs that is far apart from each other. A fixed bracket is fixedly connected to the side of the two support legs that is far apart from each other below the magnetic block. A positioning plate is rotatably sleeved inside the fixed bracket. The positioning plate is magnetically connected to the magnetic block. A U-shaped positioning frame is fixedly connected to the top of the processing table on both sides of the two support legs. The positioning plate, which is parallel to the magnetic block, is sleeved inside the U-shaped positioning frame.
[0009] Preferably, each set of reinforcing mechanisms includes a dual-axis motor fixedly connected to the outer wall of the processing table. Both output ends of the dual-axis motor are fixedly connected to threaded rods. The outer plate of the processing table is fixedly connected to a bearing bracket at the ends of the two threaded rods. The threaded rods are rotatably sleeved with the bearing brackets through bearings.
[0010] Preferably, the outer walls of the two threaded rods are threadedly fitted with threaded sleeves, and the outer side plates of the processing table are fixedly connected to guide sleeves on both sides of the dual-axis motor. The threaded sleeves are slidably fitted inside the guide sleeves on the side of the processing table closer to the processing table. An auxiliary bracket is fixedly connected to the top of each threaded sleeve, and a positioning rod is rotatably fitted inside the auxiliary bracket.
[0011] Preferably, the lower top end of the auxiliary bracket is fixedly connected to a connecting plate for preventing the positioning rod from rotating downwards, and the side of each positioning rod that is close to each other contacts the outer wall of the two support legs.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, by incorporating a pre-positioning mechanism and a reinforcing mechanism, firstly slides the stamping die onto the top of the processing table via the support leg. Then, the support leg is moved to the center position of the top of the processing table. At this point, the magnetic attraction between the positioning plate and the magnetic block can be released. Next, the positioning plate is rotated 90 degrees and positioned inside the U-shaped positioning frame. Since the positioning plate is located at the center of the support leg, it achieves a positioning effect after being fitted with the U-shaped positioning frame, ensuring that the support leg and the stamping die are located at the center position of the top of the processing table. Then, the reinforcing mechanism is used to limit the other two ends of the support leg. The synchronous movement of the four positioning rods effectively ensures that the stamping die will not deviate during operation. At the same time, when it is necessary to remove the support leg, the positioning rod can be rotated 90 degrees to ensure that the positioning rod does not obstruct the movement of the support leg. Attached Figure Description
[0013] Figure 1 A schematic diagram of the overall structure of a quick-change structure for a stamping die with a pre-positioning function; Figure 2 This is a schematic diagram of the stamping die in a quick-change structure for a stamping die with a pre-positioning function. Figure 3 This is a schematic diagram of the processing table in a quick-change structure for a stamping die with a pre-positioning function. Figure 4 A schematic diagram of the reinforcing mechanism in a quick-change structure for a stamping die with a pre-positioning function; Figure 5 This is a schematic diagram of the threaded sleeve in a quick-change structure for a stamping die with a pre-positioning function.
[0014] In the diagram: 1. Machining table; 2. Column; 3. Top plate; 4. Machining mechanism; 41. Hydraulic push rod; 42. Lower pressure plate; 43. Punch head; 44. Support leg; 45. Punch die; 46. Punch hole; 5. Pre-positioning mechanism; 51. Magnetic block; 52. Fixed bracket; 53. Positioning plate; 54. U-shaped positioning frame; 6. Reinforcing mechanism; 61. Dual-axis motor; 62. Threaded rod; 63. Bearing bracket; 64. Threaded sleeve bracket; 65. Guide sleeve; 66. Auxiliary bracket; 661. Connecting plate; 67. Positioning rod. Detailed Implementation
[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0016] Please see Figures 1-5 As shown, this utility model provides a technical solution: a quick-change structure for stamping dies with pre-positioning function, including a processing table 1, with columns 2 fixedly connected to the four corners of the upper top of the processing table 1, and a top plate 3 fixedly connected to the end of the four columns 2 away from the processing table 1, a processing mechanism 4 for processing the product is provided at the lower top of the top plate 3, and reinforcing mechanisms 6 for preventing the die from shifting during processing are provided on both sides of the outer wall of the processing table 1, and two sets of pre-positioning mechanisms 5 for positioning the die are symmetrically arranged at the upper top of the processing table 1.
[0017] It should be noted that the pre-positioning mechanism 5 is symmetrically arranged at the top of the processing table 1. During mold installation, it can quickly and accurately determine the initial position of the mold, greatly shorten the mold positioning time, improve the efficiency of mold replacement, effectively reduce equipment downtime, and improve production continuity. The reinforcing mechanism 6 is located on both sides of the outer wall of the processing table 1. During product processing, it can provide strong and stable lateral support force, effectively prevent the mold from being displaced due to the huge impact force generated by stamping, and ensure that the mold is always in the correct processing position.
[0018] As one implementation method in this embodiment, please refer to Figure 1 and Figure 2 As shown, the processing mechanism 4 includes two hydraulic push rods 41 symmetrically fixedly connected to the lower top of the top plate 3. The telescopic ends of the two hydraulic push rods 41 are fixedly connected to a lower pressure plate 42. The lower top of the lower pressure plate 42 is symmetrically fixedly connected to two punching heads 43. The upper top of the processing table 1 is symmetrically slidably connected to two support legs 44. The upper top of the two support legs 44 is fixedly connected to a stamping die 45. The upper top of the stamping die 45 is symmetrically provided with two stamping holes 46 that cooperate with the punching heads 43 to stamp the product.
[0019] It should be noted that the two hydraulic push rods 41 are symmetrically fixed at the bottom of the top plate 3, which can output powerful force synchronously and stably, ensuring that the pressure plate 42 is evenly stressed and the pressing process is smooth and without shaking, making the stamping action precise and reliable. The two symmetrical stamping heads 43 at the bottom of the pressure plate 42 can stamp the product at the same time, completing the processing of two parts in one operation, improving production efficiency and meeting the needs of large-scale production. The two symmetrically sliding support legs 44 at the top of the processing table 1 facilitate the quick installation and adjustment of the stamping die 45, shortening the die change time. The two symmetrically opened stamping holes 46 on the stamping die 45 are precisely matched with the stamping heads 43 to ensure that the product is evenly stressed during the stamping process.
[0020] As one implementation method in this embodiment, please refer to Figure 2 and Figure 3 As shown, each set of pre-positioning mechanisms 5 includes a magnetic block 51 that is slidably sleeved on the side of the two support legs 44 that is far apart from each other. A fixed bracket 52 is fixedly connected to the side of the two support legs 44 that is far apart from each other, located below the magnetic block 51. A positioning plate 53 is rotatably sleeved inside the fixed bracket 52. The positioning plate 53 is magnetically connected to the magnetic block 51. A U-shaped positioning frame 54 is fixedly connected to the top of the processing table 1 on both sides of the two support legs 44. The positioning plate 53, which is parallel to the magnetic block 51, is sleeved inside the U-shaped positioning frame 54.
[0021] It should be noted that the magnetic block 51 is slidably sleeved on one side of the support leg 44, and its position can be flexibly adjusted. It can be quickly magnetically connected with the positioning plate 53. When the support leg 44 is moved, it will not affect its sliding on the processing table 1. The operation is convenient. The U-shaped positioning frame 54 is fixed on the top of the processing table 1. When the positioning plate 53 is parallel to the magnetic block 51, the U-shaped positioning frame 54 can be accurately sleeved to achieve precise positioning of the mold in the vertical direction. This positioning method ensures that the mold position is accurate and that the stamping mold 45 is precisely aligned with the stamping head 43 and the stamping hole 46, thereby improving the stamping quality of the product and reducing the scrap rate.
[0022] As one implementation method in this embodiment, please refer to Figures 3-5As shown, each reinforcing mechanism 6 includes a dual-axis motor 61 fixedly connected to the outer wall of the processing table 1. Threaded rods 62 are fixedly connected to both output ends of the dual-axis motor 61. Bearing brackets 63 are fixedly connected to the outer plate of the processing table 1 at the ends of the two threaded rods 62. The threaded rods 62 are rotatably sleeved with the bearing brackets 63 via bearings. Threaded sleeves 64 are threadedly sleeved on the outer walls of the two threaded rods 62. Guide sleeves 65 are fixedly connected to both sides of the outer plate of the processing table 1 on both sides of the dual-axis motor 61. The threaded sleeves 64 are slidably sleeved inside the guide sleeves 65 on the side closest to the processing table 1. An auxiliary bracket 66 is fixedly connected to the top of each threaded sleeve 64. A positioning rod 67 is rotatably sleeved inside the auxiliary bracket 66. A connecting plate 661 for preventing the positioning rod 67 from rotating downwards is fixedly connected to the bottom of the auxiliary bracket 66. The side of each positioning rod 67 that is close to each other contacts the outer wall of the two support legs 44.
[0023] It should be noted that when the dual-axis motor 61 starts, it drives the two threaded rods 62 to rotate synchronously. Through threaded transmission, the threaded sleeve 64 moves smoothly along the guide sleeve 65. The guide sleeve 65 ensures accurate movement direction and avoids wobbling or deviation. The threaded sleeve 64 drives the auxiliary support 66 to move, thereby causing the positioning rod 67 to quickly approach the support leg 44. The positioning rod 67 is in close contact with the outer wall of the support leg 44, which can effectively withstand the lateral force generated by stamping during processing and prevent mold displacement. The connecting plate 661 prevents the positioning rod 67 from rotating downward, ensuring that the positioning rod 67 always maintains an effective support and positioning state for the mold.
[0024] Working principle: First, the stamping die 45 is slidably placed on the top of the processing table 1 with the help of its two support legs 44. The support legs 44 are pushed to move to the center position of the top of the processing table 1. After it is in place, for the pre-positioning mechanism 5, the positioning plate 53 that is magnetically connected to the magnetic block 51 in each group is released from the magnetic attraction. The positioning plate 53 rotates 90 degrees around the fixed bracket 52 and then fits into the U-shaped positioning frame 54 located on both sides of the support leg 44 at the top of the processing table 1. Since the positioning plate 53 is located at the center of the support leg 44, precise positioning is achieved after fitting, ensuring that the support leg 44 and the stamping die 45 are located at the center position of the top of the processing table 1. Next, the reinforcing mechanism 6 limits the other two ends of the support leg 44. The dual-axis motor 61 drives the two threaded rods 62 to rotate within the bearing bracket 63. The threaded sleeve bracket 64 moves axially along the threaded rods 62 under the guidance of the guide sleeve 65, driving the auxiliary bracket 66 and the positioning rod 67 to move closer to the support leg 44. The connecting plate 661 prevents the positioning rod 67 from rotating downward. The four positioning rods 67 simultaneously abut against the outer wall of the two support legs 44 to prevent the stamping die 45 from shifting due to the impact force of the stamping head 43 during operation. When it is necessary to remove the support leg 44, the positioning rod 67 is rotated ninety degrees around the auxiliary bracket 66 so that it will not block the movement of the support leg 44, thereby realizing the rapid, accurate positioning, stable fixation and convenient replacement of the stamping die.
[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A quick-change structure for stamping dies with pre-positioning function, comprising a processing table (1), characterized in that: The upper top of the processing table (1) is fixedly connected to four columns (2), and the ends of the four columns (2) away from the processing table (1) are fixedly connected to a top plate (3). The lower top of the top plate (3) is provided with a processing mechanism (4) for processing the product. The outer walls of the processing table (1) are provided with reinforcing mechanisms (6) to prevent the mold from shifting during processing. The upper top of the processing table (1) is symmetrically provided with two sets of pre-positioning mechanisms (5) for positioning the mold.
2. The quick-change structure for a stamping die with pre-positioning function according to claim 1, characterized in that: The processing mechanism (4) includes two hydraulic push rods (41) symmetrically fixedly connected to the lower top of the top plate (3). The telescopic ends of the two hydraulic push rods (41) are fixedly connected to a lower pressure plate (42). The lower top of the lower pressure plate (42) is symmetrically fixedly connected to two punch heads (43).
3. The quick-change structure for a stamping die with pre-positioning function according to claim 2, characterized in that: The upper top of the processing table (1) is symmetrically slidably connected to two support legs (44), and the upper top of the two support legs (44) is fixedly connected to a stamping die (45). The upper top of the stamping die (45) is symmetrically provided with two stamping holes (46) that cooperate with the stamping head (43) to stamp the product.
4. The quick-change structure for a stamping die with pre-positioning function according to claim 3, characterized in that: Each of the pre-positioning mechanisms (5) includes a magnetic block (51) that is slidably sleeved on one side of the two support legs (44) away from each other. A fixed bracket (52) is fixedly connected below the magnetic block (51) on the side of the two support legs (44) away from each other. A positioning plate (53) is rotatably sleeved inside the fixed bracket (52). The positioning plate (53) is magnetically connected to the magnetic block (51). A U-shaped positioning frame (54) is fixedly connected to the top of the processing table (1) on both sides of the two support legs (44). The positioning plate (53) in a parallel state with the magnetic block (51) is sleeved inside the U-shaped positioning frame (54).
5. A quick-change structure for a stamping die with a pre-positioning function according to claim 3, characterized in that: Each set of reinforcing mechanisms (6) includes a dual-axis motor (61) fixedly connected to the outer wall of the processing table (1). Both output ends of the dual-axis motor (61) are fixedly connected to threaded rods (62). The outer plate of the processing table (1) is fixedly connected to the ends of the two threaded rods (62) with bearing brackets (63). The threaded rods (62) are rotatably sleeved with the bearing brackets (63) through bearings.
6. A quick-change structure for a stamping die with a pre-positioning function according to claim 5, characterized in that: The outer walls of the two threaded rods (62) are threaded with threaded sleeves (64). The outer side plates of the processing table (1) are fixedly connected with guide sleeves (65) on both sides of the dual-axis motor (61). The threaded sleeves (64) are slidably sleeved inside the guide sleeves (65) on the side near the processing table (1). Each threaded sleeve (64) is fixedly connected to an auxiliary bracket (66) at its top end. A positioning rod (67) is rotatably sleeved inside the auxiliary bracket (66).
7. A quick-change structure for a stamping die with a pre-positioning function according to claim 6, characterized in that: The lower top end of the auxiliary bracket (66) is fixedly connected to a connecting plate (661) for preventing the positioning rod (67) from rotating downwards, and the side of each positioning rod (67) that is close to each other is in contact with the outer wall of the two support legs (44).