Double-tool-bit disc tool magazine for numerical control machining center

Abstract

The utility model discloses a double-tool-bit disc tool magazine for a numerical control machining center, which relates to the field of numerical control machining, and comprises a driving device, the end part of the driving device is connected with a tool turntable, the inner side of the tool turntable is connected with a plurality of groups of tool fixing sleeves, and the bottom of the tool turntable is provided with a notch; and the embedding groove is formed in the inner wall face of the cutter fixing sleeve, an extrusion air ring is installed in the embedding groove in an embedded mode, and a fixing block is further fixed in the cutter rotating disc. According to the double-tool-bit disc tool magazine for the numerical control machining center, the positioning blocks can slide through the positioning grooves when moving, the tool fixing sleeves can be detached after the positioning blocks slide out of the positioning grooves, the tool fixing sleeves can be replaced with new tools for use after being detached, and the extrusion gas rings can expand in the embedding grooves after receiving gas; and when the extrusion gas ring expands to the side face of the tool bit in the tool fixing sleeve, extrusion can be conducted, and in this way, the probability that the tool falls off can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, specifically a double-head disc tool magazine for CNC machining centers. Background Technology

[0002] Numerical control (NC) machining is an advanced manufacturing technology that uses computer-generated digital information to control the movement of machine tools and the machining process. It enables precise machining of various products and parts through self-contained processing. The dual-head disc tool magazine is a highly efficient tool storage and exchange system, mainly used in CNC machining centers. It can quickly and accurately change tools. Traditionally, it is a single-head design, while the dual-head design can increase the number of tools that can be stored.

[0003] Currently, disc-type tool magazines still have some shortcomings, such as complex structure and high operating costs.

[0004] To overcome the problem of high operating costs of tool magazines, a prior art Chinese patent (publication number: CN221389983U) discloses a disc tool magazine in which the camshaft directly meshes with the needle roller bearing of the tool disc, eliminating the need for a cam turntable, simplifying the tool magazine structure and reducing its cost. At the same time, the steering component of this utility model is fixed on the tool magazine body and located on the same side as the tool disc motor, eliminating the need to reserve installation space for the steering component, making the tool magazine structure more compact and reducing its volume.

[0005] However, the currently used disc tool magazine still has some shortcomings. In the above document, it is inconvenient to replace the guide sleeve of the tool magazine after it is damaged. The traditional thread replacement method is relatively inefficient and will affect the use of the tool magazine. Secondly, if the tool head inside the tool sleeve is not installed properly, it may fall off, which poses a certain safety hazard and is relatively troublesome to use. Therefore, it is necessary to improve the existing structure. Utility Model Content

[0006] The purpose of this utility model is to provide a dual-head disc tool magazine for CNC machining centers, in order to solve the problems mentioned in the background art, such as the inconvenience of replacing worn parts of the disc tool magazine, which affects the efficiency of use, and the potential deviation in tool changing, which leads to tool instability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-head disc tool magazine for CNC machining centers, comprising a driving device, a tool turntable connected to the end of the driving device, multiple sets of tool fixing sleeves connected to the inner side of the tool turntable, and a notch opened at the bottom of the tool turntable:

[0008] The blade retaining sleeve has eight sets of positioning blocks fixed on the side near the blade turntable. A rotating disk is connected to the inner side of the blade turntable. Eight sets of positioning grooves are opened on the side of the rotating disk near the positioning blocks. Three sets of rotating blocks are rotatably connected to the side of the rotating disk away from the positioning grooves. The blade retaining sleeve is provided with a positioning mechanism to improve the efficiency of component replacement.

[0009] A fixing block is rotatably connected to the surface of the rotating disk, and the fixing block is fixed inside the blade rotating disk. The blade rotating disk is equipped with a squeezing mechanism to prevent the blade head from falling off.

[0010] Furthermore, the positioning mechanism includes a spring sheet, which is fixed inside the rotating block, and there are two spring sheets.

[0011] Furthermore, the spring piece and the engaging groove are engaged, and the engaging groove is located on the side of the blade fixing sleeve away from the rotating disk.

[0012] Furthermore, the extrusion mechanism includes a fitting groove, which is formed on the inner wall of the blade fixing sleeve. An extrusion air ring is fitted inside the fitting groove, and a fixing block is also fixed inside the blade turntable.

[0013] Furthermore, a rotating disk is rotatably connected to the inner side of the fixed block, and an external block is fixed to the top of the fixed block.

[0014] Furthermore, an airbag is installed on the side of the external block near the rotating disk, and a connecting tank is connected through the airbag and the compression air ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This dual-head disc tool magazine for CNC machining centers allows the positioning block to slide through the positioning groove when it moves. After the positioning block slides out of the positioning groove, the tool fixing sleeve can be disassembled and replaced with a new one. The extrusion gas ring receives gas and expands inside the fitting groove. When the extrusion gas ring expands to the side of the tool head inside the tool fixing sleeve, it can compress the tool, thus preventing the possibility of the tool falling out.

[0017] 2. It is equipped with positioning blocks. The eight sets of positioning blocks can improve the stability of the knife fixing sleeve during installation. At the same time, the insertion method of the positioning blocks and positioning slots can reduce the amount of on-site installation operations and improve installation efficiency.

[0018] 3. A rotating block is provided. By rotating the block, the position of the tool retaining sleeve can be limited, allowing the tool retaining sleeve to be installed on the side of the rotating disk. The operation is simple and quick, which can further improve the installation efficiency of the tool retaining sleeve, thereby improving the operating efficiency of the tool.

[0019] 4. It is equipped with a compression air ring, which can assist in compressing and positioning the tool inserted inside the tool retaining sleeve, preventing the tool from falling out of the tool retaining sleeve and improving the stability and safety of the tool.

[0020] 5. Equipped with an airbag, the airbag expands by squeezing the air ring, thereby assisting in the positioning of the tool. The squeezing method of the airbag is achieved by the tool fixing sleeve rotating inside the tool turntable, which does not require an independent drive method and has its own tool squeezing and positioning, improving the convenience of tool magazine operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the entire frontal three-dimensional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;

[0023] Figure 3 This is an enlarged three-dimensional structural diagram of the knife fixing sleeve of this utility model;

[0024] Figure 4 This is an enlarged three-dimensional structural diagram of the positioning block of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the rotating block of this utility model.

[0026] Figure 6 This is an enlarged three-dimensional structural diagram of the extrusion gas ring of this utility model;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the airbag of this utility model.

[0028] In the diagram: 1. Drive unit; 2. Cutter turntable; 3. Cutter retaining sleeve; 301. Positioning block; 302. Rotary disk; 303. Positioning groove; 304. Rotating block; 305. Spring piece; 306. Engaging groove; 307. Fitting groove; 308. Extrusion air ring; 309. Fixing block; 310. External connecting block; 311. Airbag; 312. Connecting tank. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1, such as Figures 1-5The present invention provides the following technical solution: To solve the problem that it is inconvenient to replace worn parts of a disc tool magazine, thus affecting its efficiency, a positioning mechanism is disclosed: including a drive device 1, with a tool turntable 2 connected to the end of the drive device 1. Multiple sets of tool fixing sleeves 3 are connected to the inner side of the tool turntable 2, and a notch is provided at the bottom of the tool turntable 2. Eight sets of positioning blocks 301 are fixed to the side of the tool fixing sleeves 3 near the tool turntable 2. A rotating disk 302 is connected to the inner side of the tool turntable 2. Eight sets of positioning grooves 303 are provided to the side of the rotating disk 302 near the positioning blocks 301. Three sets of rotating blocks 304 are rotatably connected to the side of the rotating disk 302 away from the positioning grooves 303. A positioning mechanism for improving the efficiency of part replacement is provided on the side of the tool fixing sleeve 3. The positioning mechanism includes a spring piece 305, which is fixed to the inner side of the rotating block 304. There are two spring pieces 305. The spring pieces 305 are engaged with the engaging groove 306, which is located on the side of the tool fixing sleeve 3 away from the rotating disk 302.

[0031] When the disc tool magazine is in use, the drive unit 1 can drive the tool turntable 2 to rotate. When the tool turntable 2 rotates, it can drive the internal tool retaining sleeve 3 to rotate. The tool retaining sleeve 3 usually contains the tool head. When CNC machining requires the use of different tools, the tool retaining sleeve 3 can drive the tool head to rotate out of the notch of the tool turntable 2. Then, the tool head inside the tool retaining sleeve 3 can be disassembled and replaced by other devices. The tool retaining sleeve 3 needs to be replaced after long-term use and wear. When replacing the tool retaining sleeve 3, the rotating block 304 can be rotated. When the rotating block 304 rotates, it can drive the spring piece 305 to press against the inner wall of the locking groove 306. When the spring piece 305 is pressed, it can generate its own material. When the spring 305 deforms, it can be squeezed out of the locking groove 306. The rotating block 304 can be rotated through the side of the rotating disk 302. When the rotating block 304 rotates, it can rotate out of the side of the tool fixing sleeve 3. After the rotating block 304 rotates out, it no longer restrains the tool fixing sleeve 3. At this time, the tool fixing sleeve 3 is pulled horizontally. When the tool fixing sleeve 3 is pulled, it can drive the positioning block 301 to move. When the positioning block 301 moves, it can slide through the positioning groove 303. After the positioning block 301 slides out of the positioning groove 303, the tool fixing sleeve 3 can be disassembled. After the tool fixing sleeve 3 is disassembled, it can be replaced with a new one for use, which improves the efficiency of changing parts in the disc tool magazine.

[0032] Example 2, as follows Figure 3 , Figure 6 and Figure 7The present invention provides the following technical solution to address the problem of potential deviations during tool changing in a disc tool magazine, which could lead to tool instability and potential tool drop. Based on Embodiment 1, a compression mechanism is disclosed: a fixing block 309 is rotatably connected to the surface of a rotating disk 302, and the fixing block 309 is fixed inside the tool rotating disk 2. The tool rotating disk 2 is equipped with a compression mechanism to prevent tool drop. The compression mechanism includes a fitting groove 307, which is formed on the inner wall of the tool fixing sleeve 3. A compression air ring 308 is fitted inside the fitting groove 307. A fixing block 309 is also fixed inside the tool rotating disk 2, and the rotating disk 302 is rotatably connected to the inner side of the fixing block 309. An external connecting block 310 is fixed to the top of the fixing block 309. An air bladder 311 is installed on the side of the external block 310 near the rotating disk 302. A connecting canister 312 is connected through the air bladder 311 and the compression air ring 308.

[0033] During use, the tool holder 3 rotates the tool head out of the tool disc 2 through the notch in the tool disc 2 for tool changing. When changing tools, the tool head needs to be inserted into the tool holder 3 for fixation. After insertion, the tool holder 3 rotates back into the tool disc 2. The rotation of the tool holder 3 drives the rotating disk 302 to rotate. The rotating disk 302 rotates via the fixing block 309. When the rotating disk 302 rotates to the side of the airbag 311, it can compress it. When compressed, the airbag 311 deforms via the external block 310. During deformation, the internal gas can be transported through the connecting tank 312. The gas in the air bag 311 can be transported to the compression ring 308 through the connecting tank 312. After receiving the gas, the compression ring 308 can expand inside the fitting groove 307. When the compression ring 308 expands to the side of the tool head inside the tool fixing sleeve 3, it can compress the tool head. After being compressed, the tool head can be positioned inside the tool fixing sleeve 3. In this way, the possibility of the tool falling off can be prevented, improving the stability of the disc tool magazine during use, and also improving the safety of the tool magazine during use.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-head disc tool magazine for CNC machining centers, comprising a driving device (1), wherein a tool disc (2) is connected to the end of the driving device (1), and multiple sets of tool fixing sleeves (3) are connected to the inner side of the tool disc (2), and a notch is provided at the bottom of the tool disc (2), characterized in that: The blade fixing sleeve (3) has eight sets of positioning blocks (301) fixed on the side near the blade turntable (2). The blade turntable (2) is connected to a rotating disk (302) on the inner side. The rotating disk (302) has eight sets of positioning grooves (303) on the side near the positioning blocks (301). The rotating disk (302) has three sets of rotating blocks (304) rotatably connected on the side away from the positioning grooves (303). The blade fixing sleeve (3) is provided with a positioning mechanism to improve the efficiency of component replacement. A fixing block (309) is rotatably connected to the surface of the rotating disk (302). The fixing block (309) is fixed inside the cutter disc (2). The cutter disc (2) is provided with a squeezing mechanism to prevent the cutter head from falling off.

2. A double-head disc tool magazine for CNC machining centers according to claim 1, characterized in that: The positioning mechanism includes a spring piece (305), which is fixed inside the rotating block (304), and there are two spring pieces (305).

3. A double-head disc tool magazine for CNC machining centers according to claim 2, characterized in that: The spring piece (305) and the engaging groove (306) are engaged and connected. The engaging groove (306) is located on the side of the knife fixing sleeve (3) away from the rotating disk (302).

4. A double-head disc tool magazine for CNC machining centers according to claim 1, characterized in that: The extrusion mechanism includes a fitting groove (307), which is formed on the inner wall of the blade fixing sleeve (3). An extrusion air ring (308) is fitted inside the fitting groove (307), and a fixing block (309) is also fixed inside the blade turntable (2).

5. A double-head disc tool magazine for CNC machining centers according to claim 4, characterized in that: The fixed block (309) is rotatably connected to a rotating disk (302) on its inner side, and an external block (310) is fixed to the top of the fixed block (309).

6. A double-head disc tool magazine for CNC machining centers according to claim 5, characterized in that: An airbag (311) is installed on the side of the external block (310) near the rotating disk (302), and a connecting tank (312) is connected through the airbag (311) and the compression air ring (308).

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