Clamping mechanism suitable for replacing cutting die of numerical control cutting machine

Abstract

The utility model discloses a clamping mechanism suitable for replacing a cutting die of a numerical control cutting machine, which relates to the technical field of numerical control cutting machines and comprises a pressure head. A limiting sliding rod is installed on the surface of the pressing head in a penetrating mode, a limiting plate is arranged at the upper end of the limiting sliding rod, an extension spring is installed on the upper surface of the limiting sliding rod, a first connecting plate is arranged at the lower end of the limiting sliding rod, limiting guide rails are arranged on the two sides of the surface of the lower end of the first connecting plate, and a lower pressing plate is arranged at the front end of the first connecting plate. And a magnetic suction plate is arranged at the rear end of the connecting plate I. Compared with an existing common clamping mechanism suitable for replacing the cutting die of the numerical control cutting machine, the clamping mechanism suitable for replacing the cutting die of the numerical control cutting machine has the advantages that through the arrangement of a limiting sliding rod, the height of a limiting guide rail can be reduced when the cutting die is mounted, and the cutting die can be better positioned and mounted; the installation efficiency can be improved in the frequent tool changing process, and the machining speed of the cutting machine is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control cutting machines, in particular to a clamping mechanism suitable for replacing a cutting die of a numerical control cutting machine. Background Art

[0002] CNC cutting machines have been widely used in punching out pieces of leather, plastic, cloth and other materials. The material is punched out by the cutting die installed on the punch head (cutting die plate) of the CNC cutting machine. Different shapes of cutting pieces require matching cutting dies, so the knife needs to be replaced frequently.

[0003] The existing clamping mechanism suitable for replacing the cutting die of a CNC cutting machine requires that the cutting die be clamped into the lower end of the pressure head after the cutting head is installed on the cutting die. During the clamping, the cutting die cannot be positioned accurately, which will lead to inaccurate installation and affect the efficiency of installation.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a clamping mechanism suitable for replacing the knife die of a CNC cutting machine is proposed. Utility Model Content

[0005] The utility model aims to provide a clamping mechanism suitable for replacing a cutting die of a numerically controlled cutting machine, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping mechanism suitable for replacing a cutting die of a CNC cutting machine, comprising a pressure head, a limiting slide rod is installed through the surface of the pressure head, and a limiting plate is arranged at the upper end of the limiting slide rod, and a tension spring is installed on the upper surface of the limiting slide rod, a connecting plate 1 is arranged at the lower end of the limiting slide rod, and limiting guide rails are arranged on both sides of the lower end surface of the connecting plate 1, a lower pressure plate is arranged at the front end of the connecting plate 1, and a magnetic attraction plate is arranged at the rear end of the connecting plate 1.

[0007] Preferably, a connecting plate three is installed on the surface of the limiting guide rail, and a slot is opened on the surface of the connecting plate three, and the slot is slidably connected to the limiting guide rail.

[0008] Preferably, a limited telescopic rod is provided on the lower end surface of the connecting plate three, and a pressure regulating spring is installed on the surface of the limited telescopic rod.

[0009] Preferably, a connecting plate 2 is provided at the front end of the position-limiting telescopic rod, and a cutting head is installed at the lower end of the connecting plate 2.

[0010] Preferably, a pressure-adjusting bolt is spirally mounted on the front end of the position-limiting telescopic rod, and the second connecting plate and the position-limiting telescopic rod are fixedly connected by the pressure-adjusting bolt.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a pressure head, a limit slide bar, a tension spring, a limit plate, a connecting plate 1, a limit guide rail, a magnetic plate and a lower pressure plate. Through the setting of the limit guide rail, the lower pressure plate can be pressed down during use to lower the height of the limit guide rail, which is convenient for positioning and inserting the connecting plate 3. Through the setting of the magnetic plate, the inserted connecting plate 3 can be adsorbed to improve the installation speed of the cutting die. Through the setting of the tension spring, after the cutting die is installed on the surface of the pressure head, the connecting plate 1 can be reset by resetting.

[0013] 2. The utility model is provided with connecting plate 2, cutting shear head, connecting plate 3, slot, pressure-adjusting bolt, pressure-adjusting spring and limiting telescopic rod. Through the setting of pressure-adjusting bolt, the installed cutting shear head can be clamped and fixed to the front end of the limiting telescopic rod by pressure-adjusting bolt. Then, the pressure-adjusting spring can be pressed down when the pressure under the pressure head is too large, so as to protect the cutting head from being damaged by too much pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the fixing device of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the overload protection device of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the buffer device of the utility model.

[0018] In the figure: 1. pressure head; 2. limiting slide bar; 201. tension spring; 202. limiting plate; 203. connecting plate 1; 204. limiting guide rail; 205. magnetic plate; 206. lower pressure plate; 3. connecting plate 2; 301. cutting head; 302. connecting plate 3; 303. slot; 304. pressure regulating bolt; 305. pressure regulating spring; 306. limiting telescopic rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-Figure 2As shown, a clamping mechanism suitable for replacing a cutting die of a CNC cutting machine includes a limit slide bar 2 installed through the surface of a pressure head 1, and a limit plate 202 is provided at the upper end of the limit slide bar 2, and a tension spring 201 is installed on the upper surface of the limit slide bar 2. The advantage of this arrangement is that, through the arrangement of the tension spring 201, after the cutting die is installed on the surface of the pressure head 1, the connecting plate 203 can be reset by resetting.

[0021] Furthermore, a connecting plate 203 is provided at the lower end of the limiting slide rod 2, and limiting guide rails 204 are provided on both sides of the lower end surface of the connecting plate 203. The advantage of this arrangement is that, through the arrangement of the limiting guide rails 204, the lower pressing plate 206 can be pressed down during use to lower the height of the limiting guide rails 204, thereby facilitating the positioning and insertion of the connecting plate 3 302.

[0022] Furthermore, a lower pressure plate 206 is provided at the front end of the connecting plate 1 203, and a magnetic suction plate 205 is provided at the rear end of the connecting plate 1 203. The advantage of this arrangement is that the inserted connecting plate 3 302 can be adsorbed through the arrangement of the magnetic suction plate 205, thereby improving the installation speed of the knife mold.

[0023] like Figure 3-Figure 4 As shown, a connecting plate three 302 is installed on the surface of the limiting guide rail 204, and a slot 303 is opened on the surface of the connecting plate three 302, and the slot 303 and the limiting guide rail 204 are slidably connected. The advantage of this arrangement is that the positioning and installation of the connecting plate three 302 is facilitated by the arrangement of the slot 303.

[0024] Furthermore, a limiting telescopic rod 306 is provided on the lower end surface of the connecting plate three 302, and a pressure regulating spring 305 is installed on the surface of the limiting telescopic rod 306, a connecting plate two 3 is provided at the front end of the limiting telescopic rod 306, and a cutting head 301 is installed on the lower end of the connecting plate two 3. The advantage of this arrangement is that, through the arrangement of the pressure regulating spring 305 and the limiting telescopic rod 306, the pressure can be buffered by compression after the pressure exceeds the set value of the pressure regulating spring 305.

[0025] Furthermore, a pressure-adjusting bolt 304 is spirally installed at the front end of the limiting telescopic rod 306, and the connecting plate 23 is fixedly connected to the limiting telescopic rod 306 by the pressure-adjusting bolt 304. The advantage of this arrangement is that, through the arrangement of the pressure-adjusting bolt 304, the installed cutting head 301 can be clamped and fixed to the front end of the limiting telescopic rod 306 by the pressure-adjusting bolt 304, and then the pressure-adjusting spring 305 is pressed down further forward, so that when the pressure under the pressure head 1 is too large, the cutting head can be protected to avoid damage to the cutting head due to excessive pressure.

[0026] Working principle: When using the clamping mechanism suitable for replacing the cutting die of a CNC cutting machine, first, after installing the cutting head 301 on the surface of the connecting plate 2 3, fix it to the front end of the limiting telescopic rod 306 by the pressure-adjusting bolt 304 to complete the connection, and at the same time, adjust the pressure of the pressure-adjusting spring 305. After the adjustment is completed, press down the lower pressing plate 206 to drive the connecting plate 1 203 to move downward along the limiting slide bar 2 to lower the position of the limiting guide rail 204, insert the connecting plate 3 302 with the slot 303 into the inside of the limiting guide rail 204, and fix it after the magnetic suction plate 205 absorbs it. After releasing the lower pressing plate 206 and stretching the spring 201 to drive the connecting plate 3 302 to reset, it can be used. This is the working principle of the clamping mechanism suitable for replacing the cutting die of a CNC cutting machine.

Claims

1. A clamping mechanism suitable for replacing a cutting die of a CNC cutting machine, comprising a pressing head (1), characterized in that: A limiting slide bar (2) is installed through the surface of the pressure head (1), and a limiting plate (202) is arranged at the upper end of the limiting slide bar (2), and a tension spring (201) is installed on the upper surface of the limiting slide bar (2), a connecting plate (203) is arranged at the lower end of the limiting slide bar (2), and limiting guide rails (204) are arranged on both sides of the lower end surface of the connecting plate (203), a lower pressure plate (206) is arranged at the front end of the connecting plate (203), and a magnetic attraction plate (205) is arranged at the rear end of the connecting plate (203).

2. A clamping mechanism suitable for replacing a cutting die of a CNC cutting machine according to claim 1, characterized in that: A connecting plate three (302) is installed on the surface of the position limiting guide rail (204), and a slot (303) is provided on the surface of the connecting plate three (302), and the slot (303) and the position limiting guide rail (204) are slidably connected.

3. The clamping mechanism for replacing a cutting die of a CNC cutting machine according to claim 2, characterized in that: A limiting telescopic rod (306) is provided on the lower end surface of the connecting plate three (302), and a pressure regulating spring (305) is installed on the surface of the limiting telescopic rod (306).

4. The clamping mechanism for replacing a cutting die of a CNC cutting machine according to claim 3, characterized in that: A second connecting plate (3) is provided at the front end of the position-limiting telescopic rod (306), and a cutting head (301) is installed at the lower end of the second connecting plate (3).

5. The clamping mechanism for replacing a cutting die of a CNC cutting machine according to claim 3, characterized in that: A pressure regulating bolt (304) is spirally mounted on the front end of the position limiting telescopic rod (306), and the second connecting plate (3) and the position limiting telescopic rod (306) are fixedly connected via the pressure regulating bolt (304).

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