Quick tool mounting device for tool changing of numerical control machining center

Abstract

The utility model discloses a quick tool mounting device for tool changing of a numerical control machining center, belongs to the technical field of tool changing of numerical control centers, and aims to solve the problems that the existing tool main body is fixed by screwing a nut during mounting, so that the nut screwing force is different, the tool fixing degree is also different, and the tool changing efficiency is high. Therefore, the problem that the machining precision and the product quality are affected due to tiny displacement or vibration of the cutter in the machining process is solved. After the clamping block and the extension block are installed in the tool mouth, the tool is rotated, the limiting block is squeezed into the containing groove by the extension block, and then the extension block is pressed into the pressing groove by the pressing block, so that the tool and the tool mouth are fixedly installed, and the effects of improving the installation efficiency of the tool body and facilitating the installation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool changing in a numerical control center, in particular to a quick tool loading device for tool changing in a numerical control machining center. Background Technique

[0002] Tool changing in a numerical control center, namely an automatic tool changer (ATC), is one of the key functions of a numerical control machine tool. It allows the machine tool to automatically change tools during the machining process without manual intervention, significantly improving production efficiency and machining accuracy. The ATC system usually includes a tool magazine and a tool changing manipulator. Multiple tools are stored in the tool magazine, and the manipulator is responsible for taking out the required tool from the tool magazine and installing it on the spindle. The tool changing process is controlled by the numerical control system to ensure speed and accuracy. In addition, the ATC also supports multi-process continuous machining, reducing the number of clamping times and shortening the production cycle, which is especially suitable for the efficient production of complex parts. However, when installing existing tools, the tool body needs to be fixed to the fixing component through threads and nuts, and then the fixing component is installed inside the spindle. Since the strength of employees varies when tightening the nuts, the fixing degree of the tools also varies, resulting in slight displacement or vibration of the tools during the machining process, affecting machining accuracy and product quality. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick tool loading device for tool changing in a numerical control machining center. By using this device for work, the problem that the existing tool body is fixed by tightening nuts during installation, resulting in different fixing degrees due to different forces when tightening the nuts, and causing slight displacement or vibration of the tools during the machining process, affecting machining accuracy and product quality, is solved.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A quick tool loading device for tool changing in a numerical control machining center, including a spindle, a fixing component for fixing a tool is fixedly installed on the lower surface of the spindle, and a tool component for installing the tool is arranged inside the fixing component;

[0005] The tool component includes an adjusting plate arranged inside the fixing component, a tool nozzle fixedly installed on the lower surface of the adjusting plate, a tool body arranged inside the tool nozzle. An installation groove is opened on the lower surface of the tool nozzle, an arc groove is opened on the upper surface of the installation groove, a pressing groove is opened on one side of the arc groove, the pressing groove is higher than the arc groove, a clamping block is fixedly installed on the outer surface of the tool body, an extension block is movably installed on one side of the clamping block, the pressing groove is adapted to the extension block, the clamping block, the extension block and the installation groove are adapted, the arc groove is higher than the clamping block and the extension block, and the pressing groove is used for installing the extension block.

[0006] Preferably, a tension spring is fixedly installed at the top of the pressing groove. One end of the tension spring is fixedly installed with a pressing block. A receiving groove is formed on one side of the arc groove. An extension spring is fixedly installed on the inner wall of the receiving groove. One end of the extension spring is fixedly installed with a limiting block. The pressing block is adapted to the pressing groove. A rod groove is formed on the lower surface of the tool nozzle, and the rod groove communicates with the installation groove, and the installation groove communicates with the arc groove.

[0007] Preferably, a T-shaped groove A is formed on one side of the clamping block. A compression spring is fixedly installed at the top of the T-shaped groove A. One end of the compression spring is fixedly installed with a T-shaped block A. An extension block is fixedly installed on one side of the T-shaped block A.

[0008] Preferably, the fixing assembly includes a driving rod fixedly installed on the lower surface of the main shaft. Three T-shaped grooves B are formed on the lower surface of the driving rod. The three T-shaped grooves B are equidistantly arranged. Electric telescopic rods are fixedly installed on the inner walls of the three T-shaped grooves B. A clamping plate is movably installed on the lower surface of the electric telescopic rods.

[0009] Preferably, an adjustment groove is formed on the inner wall of the clamping plate. A T-shaped block B is fixedly installed on the upper surface of the clamping plate. A roller is movably arranged at the bottom of the T-shaped block B.

[0010] Preferably, the adjustment groove is adapted to the adjustment plate.

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

[0012] A quick tool loading device for a tool changer of a CNC machining center proposed by the present utility model. When it is necessary to assemble a tool, the clamping block on the outer surface of the tool body is aligned with the installation groove for installation. When the clamping block is installed in place, the tool is rotated, so that the extension block squeezes the limiting block back into the receiving groove, thereby enabling the pressing block to press the extension block into the pressing groove. At this time, the installation of the tool is completed. Then, the clamping plate is extended outwards, the adjustment plate is placed in the central position, and then the clamping plate clamps the adjustment plate. The adjustment groove will firmly clamp the adjustment plate, achieving the effects of improving the installation efficiency of the tool body and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the sectional schematic diagram of the fixing assembly of the present utility model;

[0015] Figure 3 is the schematic diagram of the tool assembly of the present utility model;

[0016] Figure 4 is the schematic diagram of the internal structure of the tool nozzle and the structure of the tool body of the present utility model;

[0017] Figure 5Schematic diagram of the internal structure of the tool nozzle of the present utility model;

[0018] Figure 6 Schematic cross-sectional view of a part of the tool of the present utility model and the clamping block.

[0019] In the figure: 1, main shaft; 2, tool assembly; 21, adjusting plate; 22, tool body; 221, clamping block; 222, T-shaped groove A; 223, compression spring; 224, T-shaped block A; 225, extension block; 23, tool nozzle; 231, installation groove; 232, arc groove; 233, tension spring; 234, pressing block; 235, expansion spring; 236, limiting block; 237, pressing groove; 238, storage groove; 239, rod groove; 3, fixing assembly; 31, driving rod; 32, T-shaped groove B; 33, electric telescopic rod; 34, clamping plate; 341, adjusting groove; 342, T-shaped block B; 343, roller. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings.

[0022] Combined with Figure 1 , a quick tool loading device for a tool changer of a numerical control machining center, including a main shaft 1, a fixing assembly 3 for fixing a tool is fixedly installed on the lower surface of the main shaft 1, and a tool assembly 2 for installing a tool is arranged inside the fixing assembly 3.

[0023] The following further describes the present utility model in conjunction with embodiments.

[0024] Please refer to Figures 1-6, the tool assembly 2 includes an adjusting plate 21 disposed inside the fixed assembly 3, a tool nozzle 23 fixedly mounted on the lower surface of the adjusting plate 21, and a tool body 22 disposed inside the tool nozzle 23. An installation groove 231 is formed on the lower surface of the tool nozzle 23, an arc groove 232 is formed on the upper surface of the installation groove 231, a pressing groove 237 is formed on one side of the arc groove 232, the pressing groove 237 is higher than the arc groove 232, a clamping block 221 is fixedly mounted on the outer surface of the tool body 22, an extension block 225 is movably mounted on one side of the clamping block 221, the pressing groove 237 is adapted to the extension block 225, the clamping block 221, the extension block 225 are adapted to the installation groove 231, the arc groove 232 is higher than the clamping block 221 and the extension block 225, the pressing groove 237 is used for installing the extension block 225, the extension block 225 can be received through the pressing groove 237, and the assembly speed of the tool is improved through the arc groove 232 and the installation groove 231.

[0025] A tension spring 233 is fixedly mounted on the top of the pressing groove 237, a pressing block 234 is fixedly mounted on one end of the tension spring 233, a receiving groove 238 is formed on one side of the arc groove 232, an extension spring 235 is fixedly mounted on the inner wall of the receiving groove 238, a limiting block 236 is fixedly mounted on one end of the extension spring 235, the pressing block 234 is adapted to the pressing groove 237, a rod groove 239 is formed on the lower surface of the tool nozzle 23, the rod groove 239 is communicated with the installation groove 231, the installation groove 231 is communicated with the arc groove 232, and the pressing block 234 can be restricted inside the pressing groove 237 by the limiting block 236 when the tool is not installed.

[0026] A T-shaped groove A222 is formed on one side of the clamping block 221, a compression spring 223 is fixedly mounted on the top of the T-shaped groove A222, a T-shaped block A224 is fixedly mounted on one end of the compression spring 223, and an extension block 225 is fixedly mounted on one side of the T-shaped block A224. The extension block 225 and the clamping block 221 can be in a horizontal state through the compression spring 223.

[0027] The fixed assembly 3 includes a driving rod 31 fixedly mounted on the lower surface of the main shaft 1, three groups of T-shaped grooves B32 are formed on the lower surface of the driving rod 31, the three groups of T-shaped grooves B32 are equidistantly arranged, electric telescopic rods 33 are fixedly mounted on the inner walls of the three groups of T-shaped grooves B32, and a clamping plate 34 is movably mounted on the lower surface of the electric telescopic rods 33. The clamping plate 34 can be moved through the T-shaped grooves B32.

[0028] An adjusting groove 341 is formed on the inner wall of the clamping plate 34, a T-shaped block B342 is fixedly mounted on the upper surface of the clamping plate 34, and a roller 343 is movably arranged at the bottom of the T-shaped block B342. Tools of different sizes can be installed through the roller 343.

[0029] The adjusting groove 341 is adapted to the adjusting plate 21, and the installation height of the tool assembly 2 can be adjusted through the adjusting groove 341.

[0030] Working principle: When the tool 22 needs to be installed, align the clamping block 221 with the extension block 225 and then install the tool 22 into the installation groove 231. Since the T-shaped block A 224 on one side of the extension block 225 is pulled by the compression spring 223, the clamping block 221 and the extension block 225 will be installed in a horizontal state. When the clamping block 221 is installed to the top, rotate the tool 22 so that the clamping block 221 and the extension block 225 rotate inside the arc groove 232. As the extension block 225 rotates continuously, it will contact the limit block 236, so that the extension block 225 will squeeze the limit block 236 into the storage groove 238. At the moment when the limit block 236 is squeezed into the storage groove 238, the pressing block 234 in the pressing groove 237 will be pressed into the pressing groove 237 by the tension released by the tension spring 233, thus fixing the tool 22. After the tool 22 is fixed, start the electric telescopic rod 33 to make the clamping plate 34 open towards the surroundings, so as to put the tool assembly 2 into the clamping plate 34. Then close the clamping plate 34. Before that, the length of the tool assembly 2 extending out can also be adjusted. When the tool 22 needs to be taken out, take out the tool assembly 2 from the fixing assembly 3, and then forcefully push up the tool 22 and then rotate the tool 22 in the reverse direction. At this time, the limit block 236 and the pressing block 234 will reset, and at this time the tool 22 can be taken out, achieving the effects of improving the installation efficiency of the tool body 1 and convenience.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast tool loading device for tool changing in a CNC machining center, comprising a spindle (1), characterized in that: A fixing assembly (3) for fixing a tool is fixedly mounted on the lower surface of the spindle (1), and a tool assembly (2) for mounting a tool is arranged inside the fixing assembly (3); The tool assembly (2) comprises an adjustment plate (21) arranged inside the fixing assembly (3), a tool mouth (23) fixedly mounted on the lower surface of the adjustment plate (21), and a tool body (22) arranged inside the tool mouth (23); a mounting groove (231) is provided on the lower surface of the tool mouth (23); an arc groove (232) is provided on the upper surface of the mounting groove (231); a pressing groove (237) is provided on one side of the arc groove (232); and the pressing groove (237) The tool body (22) is higher than the arc groove (232), a clamping block (221) is fixedly mounted on the outer surface of the tool body (22), an extension block (225) is movably mounted on one side of the clamping block (221), the pressing groove (237) is matched with the extension block (225), the clamping block (221), the extension block (225) and the mounting groove (231), the arc groove (232) is higher than the clamping block (221) and the extension block (225), and the pressing groove (237) is used to mount the extension block (225).

2. A quick tool loading device for tool changing in a CNC machining center according to claim 1, characterized in that: A tension spring (233) is fixedly installed on the top of the pressure groove (237), a pressure block (234) is fixedly installed on one end of the tension spring (233), a receiving groove (238) is opened on one side of the arc groove (232), an expansion spring (235) is fixedly installed on the inner wall of the receiving groove (238), a limit block (236) is fixedly installed on one end of the expansion spring (235), the pressure block (234) is matched with the pressure groove (237), a rod groove (239) is opened on the lower surface of the tool mouth (23), the rod groove (239) is connected to the installation groove (231), and the installation groove (231) is connected to the arc groove (232).

3. A fast tool loading device for tool changing in a CNC machining center according to claim 2, characterized in that: A T-shaped slot A (222) is provided on one side of the clamping block (221); a compression spring (223) is fixedly mounted on the top of the T-shaped slot A (222); a T-shaped block A (224) is fixedly mounted on one end of the compression spring (223); and an extension block (225) is fixedly mounted on one side of the T-shaped block A (224).

4. The rapid tool loading device for tool changing in a CNC machining center according to claim 1, characterized in that: The fixing assembly (3) comprises a driving rod (31) fixedly mounted on the lower surface of the main shaft (1); the lower surface of the driving rod (31) is provided with three groups of T-shaped slots B (32); the three groups of T-shaped slots B (32) are arranged at equal intervals; the inner walls of the three groups of T-shaped slots B (32) are fixedly mounted with electric telescopic rods (33); and the lower surface of the electric telescopic rod (33) is movably mounted with a clamping plate (34).

5. A fast tool loading device for tool changing in a CNC machining center according to claim 4, characterized in that: The inner wall of the clamping plate (34) is provided with an adjustment groove (341), a T-shaped block B (342) is fixedly mounted on the upper surface of the clamping plate (34), and a roller (343) is movably arranged at the bottom of the T-shaped block B (342).

6. A fast tool loading device for tool changing in a CNC machining center according to claim 5, characterized in that: The adjustment groove (341) is matched with the adjustment plate (21).

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