Die replacement structure for precise numerical control equipment

By introducing a fixing mechanism and a driving mechanism into the CNC equipment, the problem of cumbersome mold changing process is solved, enabling rapid mold changing and reasonable waste collection, thereby improving production efficiency and automation.

CN223833244UActive Publication Date: 2026-01-27HUARUILONG (TIANJIN) TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520461098.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-27
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The existing CNC equipment mold replacement process is cumbersome, which affects production efficiency.

Method used

It adopts a fixed mechanism and a drive mechanism design, and realizes the quick installation and disassembly of the mold through pins and motor drive, combined with the inclined drop box to collect waste materials.

Benefits of technology

It enables rapid mold replacement, improves the production efficiency of punched parts and the degree of automation of the equipment, and makes waste collection more efficient.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223833244U_ABST
    Figure CN223833244U_ABST
Patent Text Reader

Abstract

The utility model discloses a mould replacement structure for precision numerical control equipment, which comprises two mounting vertical plates, a mounting shaft is arranged on the two mounting vertical plates, the side wall of the mounting shaft is fixedly connected with a mounting piece, the mounting piece is fixedly connected with a plurality of mould bottom plates, and the mould bottom plates are arranged on the mounting shaft. Wherein the two side walls of one mold bottom plate are provided with fixing mechanisms used for fixing the mold bottom plate, each fixing mechanism comprises a fixing plate arranged on the side wall of the mold bottom plate, two plug pins are arranged on the side wall of each fixing plate in a penetrating mode, and the side wall of each mold bottom plate is fixedly connected with a mounting block. According to the utility model, the fixing mechanism is arranged, four common punching dies can be installed on the installation part in advance, the die replacement action is less, the speed is high, and the rapid replacement of the die can be realized, so that the punching efficiency of the punching part is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of CNC equipment component technology, and in particular to a mold replacement structure for precision CNC equipment. Background Technology

[0002] Precision numerical control (NC) equipment, also known as numerical control (NC) equipment, is equipment that operates using digital control technology. It uses computer programs to control the equipment's motion trajectory, machining parameters, and other parameters, and is widely used in many fields such as machinery manufacturing, aerospace, automotive manufacturing, and the electronics industry.

[0003] A CNC punching and cutting machine is a CNC device that integrates punching and shearing functions. It mainly consists of a bed, a punching table, a CNC system, a transmission system, a punch, and dies. The dies are mounted on the punching table via multiple fixing mechanisms, typically including bolts, locating pins, and other fixing components. When changing the die, these fixing mechanisms must first be disassembled. This disassembly process requires appropriate tools, such as wrenches, and the bolts must be loosened and the locating pins pulled out in a specific order. Due to the large number of fixing mechanisms, this process is quite cumbersome. Furthermore, when installing a new die, repositioning and tightening are required. These operations slow down die replacement speed and affect the production efficiency of punched parts. To solve these problems, we propose a die replacement structure for this precision CNC equipment. Utility Model Content

[0004] The main purpose of this utility model is to provide a mold replacement structure for precision CNC equipment, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mold replacement structure for precision CNC equipment includes two mounting vertical plates. Both mounting vertical plates share a common mounting shaft. A mounting component is fixedly connected to the side wall of the mounting shaft. Multiple mold base plates are fixedly connected to the mounting component. One mold base plate has fixing mechanisms on both side walls for securing the mold base plate. Each fixing mechanism includes a fixing plate disposed on the side wall of the mold base plate. Two pins are passed through the side wall of the fixing plate. A mounting block is fixedly connected to the side wall of the mold base plate. A screw is fixedly connected to the upper end of the mounting block. A clamping block is provided on the side wall of the screw. Two insertion holes that can mate with the pins are opened on both side walls of the mold base plate. One of the mounting vertical plates has a driving mechanism on its side wall for driving the mounting shaft to rotate.

[0007] Preferably, the drive mechanism includes a motor fixedly connected to the side wall of the mounting vertical plate, a first gear fixedly connected to the output shaft of the motor, and a second gear cooperating with the first gear fixedly connected to the side wall of the mounting shaft.

[0008] Preferably, a material drop frame is provided through one of the mounting vertical plates on its side wall, and the material drop frame is inclined.

[0009] Preferably, an electric push rod is fixedly connected to the side wall of the mounting vertical plate, and a connecting vertical plate is fixedly connected to the output shaft of the electric push rod. The upper end of the connecting vertical plate is fixedly connected to the lower end of the material dropping frame.

[0010] Preferably, a movable plate is fixedly connected to both of the two pin sidewalls, and a cylinder is fixedly connected to the sidewall of the movable plate.

[0011] Preferably, the plurality of mold base plates are arranged at equal intervals, and the mounting components are made of cast iron.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This device is equipped with a fixing mechanism, on which four commonly used punching dies can be pre-installed. When it is necessary to change the die, simply pull out multiple pins, rotate the mounting shaft and insert the pins back. The action is minimal and the speed is fast, which can realize the quick change of the die, thereby greatly improving the punching efficiency of the punched parts.

[0014] 2. This device is equipped with a drive mechanism. The rotation of the mounting shaft can be driven by starting the motor. The motor output shaft drives the mounting shaft to rotate through the first gear and the second gear. There is no need to manually rotate the mold base plate, thus improving the automation level of the device.

[0015] 3. This device is equipped with a material discharge frame, which allows the waste material from the stamping process to fall into the frame and be discharged by the inclined surface of the frame, thus preventing the waste material from falling randomly and improving the rationality of the device design. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a mold replacement structure for precision CNC equipment proposed in this utility model;

[0017] Figure 2 This is a side view of a mold replacement structure for precision CNC equipment proposed in this utility model;

[0018] Figure 3 This is another side view of a mold replacement structure for a precision CNC equipment proposed in this utility model.

[0019] In the diagram: 1 Mounting vertical plate, 2 Mounting shaft, 3 Mounting component, 4 Mold base plate, 5 Mounting block, 6 Fixing plate, 7 Pin, 8 Clamping block, 9 Screw, 10 Connecting vertical plate, 11 Electric push rod, 12 Motor, 13 Drop frame, 14 Cylinder, 15 Moving plate. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-3 As shown, a mold replacement structure for precision CNC equipment includes two mounting vertical plates 1. The equipment shown in the figure is a CNC punching and cutting integrated machine. Its feeding mechanism and receiving mechanism are not shown in the figure. The two mounting vertical plates 1 are provided with a mounting shaft 2. The side wall of the mounting shaft 2 is fixedly connected to a mounting component 3. Multiple mold base plates 4 are fixedly connected to the mounting component 3. Both sides of one of the mold base plates 4 are provided with a fixing mechanism for fixing the mold base plate 4. The fixing mechanism includes a fixing plate 6 set on the side wall of the mold base plate 4. Two pins 7 are provided through the side wall of the fixing plate 6. The side wall of the mold base plate 4 is fixedly connected to a mounting block 5. The upper end of the mounting block 5 is fixedly connected to a screw 9. The side wall of the screw 9 is provided with a clamping block 8. Both sides of the mold base plate 4 are provided with two insertion holes that can cooperate with the pins 7.

[0022] One of the mounting vertical plates 1 has a drive mechanism on its side wall for driving the mounting shaft 2 to rotate. The drive mechanism includes a motor 12 fixedly connected to the side wall of the mounting vertical plate 1. A first gear is fixedly connected to the output shaft of the motor 12, and a second gear that cooperates with the first gear is fixedly connected to the side wall of the mounting shaft 2.

[0023] In this utility model, a material discharge frame 13 is provided through the side wall of one of the mounting vertical plates 1. The material discharge frame 13 is inclined and can discharge the waste material falling from the mold, thus avoiding the waste material falling randomly and being inconvenient to collect.

[0024] In this utility model, an electric push rod 11 is fixedly connected to the side wall of the mounting vertical plate 1, and a connecting vertical plate 10 is fixedly connected to the output shaft of the electric push rod 11. The upper end of the connecting vertical plate 10 is fixedly connected to the lower end of the dropping frame 13, so that when the mounting shaft 2 rotates, the dropping frame 13 can automatically move to the outside of the mounting part 3, so that it can rotate smoothly. The tilt angle of the electric push rod 11 is the same as the tilt angle of the dropping frame 13.

[0025] In this utility model, the two pins 7 are fixedly connected to the side walls of a movable plate 15, and the side walls of the movable plate 15 are fixedly connected to a cylinder 14. The cylinder 14 is fixedly connected to the inner wall of the CNC punching and cutting machine, so that the two pins 7 can be moved at the same time without the need for manual movement.

[0026] In this utility model, multiple mold base plates 4 are arranged at equal intervals, so that the mounting shaft 2 is subjected to more uniform force. The mounting component 3 is made of cast iron and consists of a ring on the mounting shaft 2 and multiple inclined rods on the ring. There are two inclined rods under one mold base plate 4.

[0027] In the initial state, there are no molds on all the mold base plates 4.

[0028] It should be noted that this utility model is a mold replacement structure for precision CNC equipment. The user loosens the nut on the screw 9, places the mold on the uppermost mold base plate 4, presses multiple clamping blocks 8 against the mold side wall, and then tightens the nut to fix the mold on the mold base plate 4. Then, the mounting shaft 2 is rotated to rotate the other mold base plates 4 into the CNC punching and cutting integrated machine. The other mold base plates 4 are then installed according to the above steps. This process is repeated to install four commonly used punching and cutting molds on the four mold base plates 4. Rotating one mold rotates the mold base plate 4 into the integrated machine, and multiple pins 7 on the side wall of the mold base plate 4 are pushed into the mold base plate 4 to fix it. After the punching part changes model, multiple pins 7 can be pulled out, and the mounting shaft 2 is rotated to rotate the mold that meets the requirements into the integrated machine. The above steps are then followed to fix it. The process allows for quick mold replacement.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold changing structure for precision CNC equipment, comprising two mounting vertical plates (1), characterized in that, The two mounting vertical plates (1) are provided with a mounting shaft (2). The mounting shaft (2) is fixedly connected to the side wall of the mounting shaft (2). Multiple mold base plates (4) are fixedly connected to the mounting component (3). One of the mold base plates (4) is provided with a fixing mechanism for fixing the mold base plate (4) on both side walls. The fixing mechanism includes a fixing plate (6) set on the side wall of the mold base plate (4). Two pins (7) are provided through the side wall of the fixing plate (6). The side wall of the mold base plate (4) is fixedly connected with a mounting block (5). The upper end of the mounting block (5) is fixedly connected with a screw (9). The side wall of the screw (9) is provided with a clamping block (8). Two insertion holes that can cooperate with the pins (7) are opened on both side walls of the mold base plate (4). One of the mounting vertical plates (1) is provided with a driving mechanism for driving the mounting shaft (2) to rotate.

2. The mold changing structure for precision CNC equipment according to claim 1, characterized in that, The drive mechanism includes a motor (12) fixedly connected to the side wall of the mounting vertical plate (1), the output shaft of the motor (12) is fixedly connected to a first gear, and the side wall of the mounting shaft (2) is fixedly connected to a second gear that cooperates with the first gear.

3. The mold changing structure for precision CNC equipment according to claim 2, characterized in that, One of the mounting vertical plates (1) has a material drop frame (13) through its side wall, and the material drop frame (13) is set at an angle.

4. The mold changing structure for precision CNC equipment according to claim 3, characterized in that, An electric push rod (11) is fixedly connected to the side wall of the mounting vertical plate (1), and a connecting vertical plate (10) is fixedly connected to the output shaft of the electric push rod (11). The upper end of the connecting vertical plate (10) is fixedly connected to the lower end of the dropping frame (13).

5. The mold changing structure for precision CNC equipment according to claim 4, characterized in that, The two pins (7) are fixedly connected to a movable plate (15) on their sidewalls, and a cylinder (14) is fixedly connected to the sidewall of the movable plate (15).

6. The mold changing structure for precision CNC equipment according to claim 1, characterized in that, Multiple mold base plates (4) are arranged at equal intervals, and the mounting component (3) is made of cast iron.