Punching die capable of being rapidly replaced and adjusted

By using a motor-driven lead screw design and sensing components, the problems of low adjustment accuracy and cumbersome replacement of traditional stamping dies are solved, enabling rapid and efficient adjustment and replacement of stamping die components and improving production efficiency.

CN224195727UActive Publication Date: 2026-05-05DAHE ZHONGBANG (XIAMEN) INTELLIGENT TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DAHE ZHONGBANG (XIAMEN) INTELLIGENT TECH CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional stamping dies suffer from low precision, long processing time, and cumbersome operation when adjusting the punch spacing and changing die components, especially in multi-hole continuous stamping processes where it is difficult to make quick adjustments.

Method used

The design employs a motor-driven lead screw, which connects to the lead screw nut seat using first and second threaded sections with opposite rotation directions. It is also equipped with a sensing component to detect limit positions, enabling efficient adjustment and quick replacement of the die assembly.

Benefits of technology

It enables efficient and precise adjustment of the spacing between punch die components, shortens adjustment time, reduces the number of steps required to change molds, and improves production efficiency and equipment utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224195727U_ABST
    Figure CN224195727U_ABST
Patent Text Reader

Abstract

The utility model discloses a punching die capable of being quickly replaced and adjusted, which comprises a rack, a group of guide rails arranged in parallel are fixedly connected onto the rack, and two groups of punching die components are connected onto the guide rails in a sliding manner; a lead screw nut seat is fixedly connected to one side of each punching die assembly, a motor and a rotating seat are fixedly connected to the rack, the output end of the motor is fixedly connected with one end of a lead screw, the other end of the lead screw is rotationally connected with the rotating seat, and a first threaded part and a second threaded part which are opposite in rotating direction are arranged on the lead screw. The two screw rod nut seats are in threaded connection with the first threaded part and the second threaded part respectively; induction assemblies are arranged on the adjacent sides of the two punching die assemblies; when the motor drives the lead screw to rotate, the two punching die assemblies can move in the opposite directions at the same time, by means of the design, the distance between the two punching die assemblies can be adjusted very efficiently, and compared with a traditional mode that the position of each punching die assembly is adjusted independently, the adjusting time is greatly saved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of metal stamping technology, and specifically relates to a punching die that can be quickly replaced and adjusted. Background Technology

[0002] In the field of metal stamping, multi-hole progressive stamping dies require frequent adjustments to the punch spacing and replacement of die components according to product specifications. Traditional dies generally adopt the following structural design:

[0003] Spacing adjustment method: The spacing is adjusted by manually rotating the screw or adding or removing shims after manual measurement. This method has the problems of low adjustment accuracy (error is generally ≥ ±0.1mm), long time consumption (15-30 minutes for a single adjustment), and easy accumulation of error after multiple adjustments.

[0004] Mold fixing structure: Relies on bolts to lock the module. When changing the mold, the fasteners need to be disassembled one by one, which is cumbersome and there is a risk of losing parts. The mold changing process usually takes more than 20 minutes.

[0005] Therefore, this application provides a punching die that can be quickly replaced and adjusted, aiming to solve the current problem of difficulty in adjusting the position of punching dies and replacing dies in enterprise equipment. Utility Model Content

[0006] This invention provides a punching die that can be quickly changed and adjusted, aiming to solve the problems pointed out in the background art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A quick-change and adjustable punching die includes a frame, on which a set of parallel guide rails are fixedly connected, and on which two sets of punching die assemblies are slidably connected;

[0009] One side of each die assembly is fixedly connected to a lead screw nut seat. A motor and a rotating seat that cooperate with each other are fixedly connected to the frame. One end of the lead screw is fixedly connected to the output end of the motor. The other end of the lead screw is rotatably connected to the rotating seat. The lead screw is provided with a first threaded part and a second threaded part with opposite rotation directions. The two lead screw nut seats are respectively threaded to the first threaded part and the second threaded part.

[0010] A sensing component is provided on one side of each of the two sets of die assemblies. The sensing component is used to sense the extreme positions of the two sets of die assemblies.

[0011] Furthermore, the die assembly includes: a die base, a die assembly, and a punch;

[0012] A slider is fixedly connected to the lower part of the punching die base, and the slider is slidably connected to the guide rail. A punching die is detachably mounted on the upper part of the punching die base, and a punch head is mounted on the upper part of the punching die.

[0013] Furthermore, a cover for fixing the punching die assembly is provided on one side of the punching die assembly base.

[0014] Furthermore, the sensing component includes: a sensor, a mounting plate, and a sensing plate;

[0015] The mounting plate is fixedly connected to a punching die assembly, the sensor is fixedly connected to the mounting plate, the sensing plate is fixedly connected to another punching die assembly, and the sensing plate cooperates with the working head of the sensor.

[0016] Furthermore, the mounting plate is provided with a mounting groove, and the sensor is engaged with the mounting groove by a locking nut.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] 1. The quick-change and adjustable punching die of this utility model features a first threaded section and a second threaded section with opposite rotation directions on the lead screw, with two lead screw nut seats threadedly connected to them respectively. When the motor drives the lead screw to rotate, the two sets of punching die assemblies can move simultaneously in opposite directions. This design makes adjusting the distance between the two sets of punching die assemblies highly efficient, greatly saving adjustment time compared to the traditional method of adjusting the position of each punching die assembly individually.

[0019] 2. The punching die of this utility model, which can be quickly replaced and adjusted, achieves quick replacement of the punch and die by removing the cover used to fix the die assembly and replacing the entire die assembly when the punch and die need to be replaced due to the setting of the stop block. Attached Figure Description

[0020] Figure 1 This is a front view of a punching die that can be quickly replaced and adjusted according to this utility model;

[0021] Figure 2 This is a top view of a punching die that can be quickly replaced and adjusted according to this utility model;

[0022] Figure 3 This is a schematic diagram of the components of a punching die that can be quickly replaced and adjusted according to this utility model.

[0023] In the picture:

[0024] 1. Guide rail;

[0025] 2. Die assembly; 201. Die assembly base; 202. Die assembly; 203. Punch;

[0026] 3. Slider;

[0027] 4. Lead screw; 401. First threaded section; 402. Second threaded section;

[0028] 5. Electric motor;

[0029] 6. Sensing components; 601. Sensor; 602. Mounting plate; 603. Sensing plate;

[0030] 7. Cover; 8. Lead screw nut seat; 9. Rotary seat. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments of this application and the accompanying drawings.

[0032] like Figure 1-2 As shown, a punching die that can be quickly replaced and adjusted includes a frame, on which a set of parallel guide rails 1 are fixedly connected, and on which two sets of punching die assemblies 2 are slidably connected;

[0033] One side of each of the punching die assembly 2 is fixedly connected to a lead screw nut seat 8. A motor 5 and a rotating seat 9 that cooperate with each other are fixedly connected to the frame. One end of the lead screw 4 is fixedly connected to the output end of the motor 5. The other end of the lead screw 4 is rotatably connected to the rotating seat 9. The lead screw 4 is provided with a first threaded part 401 and a second threaded part 402 with opposite rotation directions. The two lead screw nut seats 8 are respectively threadedly connected to the first threaded part 401 and the second threaded part 402.

[0034] A sensing component 6 is provided on one side of each of the two sets of punching die assemblies 2. The sensing component 6 is used to sense the extreme positions of the two sets of punching die assemblies 2.

[0035] By setting a first threaded portion 401 and a second threaded portion 402 with opposite rotation directions on the lead screw 4, two lead screw nut seats 8 are threadedly connected to them respectively. When the motor 5 drives the lead screw 4 to rotate, the two sets of punch die assemblies 2 can move in opposite directions simultaneously. This design makes adjusting the distance between the two sets of punch die assemblies 2 very efficient, greatly saving adjustment time compared to the traditional method of adjusting the position of each punch die assembly 2 individually; when the motor 5 drives the lead screw 4 to rotate, the moving distance of the two sets of punch die assemblies 2 can be precisely controlled by precisely controlling the number of rotations and direction of the motor 5, thereby precisely adjusting the distance between them; the motor 5 has a built-in encoder, which can accurately obtain the moving distance of the two sets of punch die assemblies 2;

[0036] The sensing component 6, which is set on the adjacent side of the two sets of punching die components 2, can obtain the extreme positions of the two sets of punching die components 2 and avoid collision between the punching die components 2.

[0037] like Figure 3 As shown, the punching die assembly 2 includes: a punching die base 201, a punching die assembly 202, and a punch 203;

[0038] A slider 3 is fixedly connected to the lower part of the die base 201, and the slider 3 is slidably connected to the guide rail 1. A die 202 is detachably provided on the upper part of the die base 201, and a punch 203 is provided on the upper part of the die 202.

[0039] like Figure 3 As shown, a cover 7 for fixing the punching die 202 is provided on one side of the punching die base 201.

[0040] The die assembly 202 is detachably mounted on the upper part of the die assembly base 201. When it is necessary to replace the die assembly 202 with a different specification to adapt to different punching requirements, it is not necessary to replace the entire die assembly 2; only the die assembly 202 needs to be disassembled and installed separately. This method greatly shortens the time for changing dies, reduces equipment downtime, and improves production efficiency. In one specific embodiment, the die assembly 202 and the die assembly base 201 have a reference positioning. When it is necessary to replace the punch and die of the die, it is only necessary to remove the cover 7 on the die used to fix the die assembly 202, replace the entire die assembly 202, and align the replaced die assembly 202 with the reference positioning. The parameter data of the previous die assembly 202 can then be used to achieve quick replacement of the punch and die of the die.

[0041] like Figure 3 As shown, the sensing component 6 includes: a sensor 601, a mounting plate 602, and a sensing plate 603;

[0042] The mounting plate 602 is fixedly connected to a punching die assembly 2, the sensor 601 is fixedly connected to the mounting plate 602, the sensing plate 603 is fixedly connected to another punching die assembly 2, and the sensing plate 603 cooperates with the working head of the sensor 601.

[0043] The design of sensor 601 in conjunction with sensing plate 603 enables the sensing of the extreme positions of the two sets of punching die assemblies 2, preventing collisions between them. Based on its working principle (such as optical or electromagnetic), the sensor accurately detects changes in the position of sensing plate 603, converting the physical distance into electrical or digital signals for measurement.

[0044] In one specific embodiment, the mounting plate 602 is provided with a mounting groove, and the sensor 601 is engaged with the mounting groove by a locking nut. The mounting groove provides an adjustable mounting position for the sensor 601. In actual mold application scenarios, due to different punching process requirements, differences in the layout of the die assembly 2, or the characteristics of the sensor 601 itself, it may be necessary to fine-tune the position of the sensor 601. Through the mounting groove, the sensor 601 can move back and forth or left and right along the direction of the groove to find the most suitable mounting position, ensuring that the sensor 601 and the sensing plate 603 can be precisely matched to achieve adjustment of the extreme positions of the two sets of die assemblies 2.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A quick-change and adjustable punching die, comprising a frame, characterized in that, A set of parallel guide rails (1) are fixedly connected to the frame, and two sets of punching die assemblies (2) are slidably connected to the guide rails (1); One side of the die assembly (2) is fixedly connected to a lead screw nut seat (8). The frame is fixedly connected to a motor (5) and a rotating seat (9) that cooperate with each other. The output end of the motor (5) is fixedly connected to one end of the lead screw (4). The other end of the lead screw (4) is rotatably connected to the rotating seat (9). The lead screw (4) is provided with a first threaded part (401) and a second threaded part (402) with opposite rotation directions. The two lead screw nut seats (8) are threadedly connected to the first threaded part (401) and the second threaded part (402) respectively. A sensing component (6) is provided on one side of each of the two sets of die assemblies (2), and the sensing component (6) is used to sense the extreme positions of the two sets of die assemblies (2).

2. The quick-change and adjustable punching die according to claim 1, characterized in that, The die assembly (2) includes: a die base (201), a die assembly (202), and a punch (203); A slider (3) is fixedly connected to the lower part of the punching die base (201), and the slider (3) is slidably connected to the guide rail (1). A punching die (202) is detachably provided on the upper part of the punching die base (201), and a punch (203) is provided on the upper part of the punching die (202).

3. The quick-change and adjustable punching die according to claim 2, characterized in that, A cover (7) for fixing the punching die (202) is provided on one side of the punching die base (201).

4. The quick-change and adjustable punching die according to claim 1, characterized in that, The sensing component (6) includes: a sensor (601), a mounting plate (602), and a sensing plate (603); The mounting plate (602) is fixedly connected to a punching die assembly (2), the sensor (601) is fixedly connected to the mounting plate (602), the sensing plate (603) is fixedly connected to another punching die assembly (2), and the sensing plate (603) cooperates with the working head of the sensor (601).

5. A quick-change and adjustable punching die according to claim 4, characterized in that, The mounting plate (602) is provided with a mounting groove, and the sensor (601) is engaged with the mounting groove by a locking nut.