Tool changing device of numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a tool changer of a numerical control machine tool, which comprises two mounting frames, a sliding frame is slidably connected between the two mounting frames, a sliding rod is slidably connected to the surface of the sliding frame, and a fixing ring is fixedly mounted on the surface of the sliding rod. The interior of the fixing ring is rotationally connected with a cutter containing shell, and through holes are evenly formed in the surface of the cutter containing shell. The tool containing shell is arranged, the containing cylinders are arranged in the tool containing shell, the containing cylinders correspond to tools of different models, and therefore the tools are placed through the tool containing cylinders, and the clamping mechanisms and the ejector pins capable of assisting the tools to stretch out of the containing cylinders to be installed are arranged in the containing cylinders. According to the cutter storage device, cutters can be replaced and stored conveniently, the stability of the cutters in the storage process can be higher through the arranged clamping mechanism and powerful magnets, and the situation that the cutters deviate or fall off due to vibration in the using process of a machine tool is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field especially a tool changer of numerical control machine tool. BACKGROUND

[0002] Numerical control machine tool is the abbreviation of digital control machine tool, and it is an automatic machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions, and translate them into code numbers. Through information carriers, numerical control devices are input. After operation processing, various control signals are sent by numerical control devices to control the action of machine tools. According to the shape and size required by the drawing, the parts are automatically processed.

[0003] During the use of numerical control machine tool, different tools are sometimes needed for machining the same part, so the tools need to be frequently replaced. The patent with publication number CN221313410U discloses a horizontal machine tool tool changer, which realizes the installation of tools by setting a rotating disc in the inside of the tool box and setting tool clamping pieces on the edge of the rotating disc. However, the tool clamping piece is just a separate clamping groove for clamping the tool, which has poor stability and is prone to falling during tool replacement. In addition, the tool is not easy to separate from the clamping groove during installation, which is not convenient for actual use. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a tool changer of numerical control machine tool, which solves the problem of falling during tool replacement and the problem of not being easy to separate the tool from the clamping groove during installation, thus not being convenient for actual use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A tool changer of numerical control machine tool, comprising two mounting frames, a sliding frame slidingly connected between the two mounting frames, a sliding rod slidingly connected to the surface of the sliding frame, a fixed ring fixedly installed on the surface of the sliding rod, a tool placing shell rotatably connected to the inside of the fixed ring, through holes uniformly formed on the surface of the tool placing shell, a placing cylinder for containing tools fixedly installed in the inside of the through hole, a clamping mechanism for clamping tools arranged in the inside of the placing cylinder, a driving mechanism arranged on the surface of the fixed ring for driving the tool placing shell to rotate, a third electric telescopic rod fixedly installed on the surface of the sliding rod, and a thimble fixedly installed on the output end port of the third electric telescopic rod.

[0007] Preferably, the interiors of the two mounting frames are fixedly installed with first electric telescopic rods, the output end ports of the two first electric telescopic rods are fixedly connected with a sliding frame, the surface of the sliding frame is fixedly installed with a second electric telescopic rod, and the output end port of the second electric telescopic rod is fixedly connected with a sliding rod.

[0008] Preferably, the driving mechanism comprises a motor, the motor is fixedly installed on the surface of the fixed ring, the output shaft port of the motor is fixedly installed with a gear, and the surface of the cutter placing shell is fixedly sleeved with a tooth ring, and the gear and the tooth ring are engaged.

[0009] Preferably, the end portion of the placing cylinder is fixedly installed with a strong magnet, and the strong magnet is arranged in an annular structure to achieve the purpose that the ejector pin penetrates through the strong magnet and pushes the cutter.

[0010] Preferably, the clamping mechanism comprises clamping rods, the inner walls of the placing cylinders are uniformly provided with three accommodating grooves, the clamping rods are three and are arranged in the interiors of the accommodating grooves respectively, the surface of the clamping rod is fixedly installed with a spring, the end of the spring away from the clamping rod is fixedly connected with the accommodating groove, and the end of the clamping rod away from the strong magnet is arranged as an inclined surface.

[0011] Preferably, the top of the mounting frame is provided with a bolt.

[0012] The utility model at least has the following beneficial effects:

[0013] By arranging the cutter placing shell and the placing cylinders in the cutter placing shell, each placing cylinder corresponds to different models of cutters, so that the cutter placing cylinders are utilized to place the cutters, the clamping mechanism and the ejector pin that can assist the cutters to extend out of the placing cylinders and be installed are arranged in the placing cylinders, the cutters can be conveniently replaced and stored, and the clamping mechanism and the strong magnet are arranged to make the stability of the cutters during storage stronger, so that the cutters will not deviate or fall off due to vibration during use of the machine tool. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is the utility model Figure 1 Side view;

[0017] Figure 3The utility model discloses a sliding frame structure schematic diagram.

[0018] Figure 4 The utility model discloses a cutter placing shell sectional view.

[0019] Figure 5 The utility model discloses Figure 4 The structure schematic diagram of A in the middle.

[0020] In the drawing: 1, mounting frame, 2, bolt, 3, first electric telescopic rod, 4, sliding frame, 5, second electric telescopic rod, 6, slide bar, 7, third electric telescopic rod, 8, fixed ring, 9, motor, 10, gear, 11, cutter placing shell, 12, strong magnet, 13, placing cylinder, 14, clamping rod, 15, spring, 16, containing groove, 17, gear ring, 18, thimble. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below, obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0023] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0024] The electrical components appearing in the text are all connected with the main controller and 220V mains of the outside world, and the main controller can be a conventional known device such as a computer for control.

[0025] In the description of the embodiments of the utility model, it needs to be explained that the directions or position relations indicated by the terms "inner", "outer", "upper" and the like are based on the directions or position relations shown in the drawings, or are the directions or position relations in which the utility model product is usually placed during use, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as limiting the utility model in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction.

[0026] Referring to Figures 1-5 A tool changer of numerical control machine tool, including two mounting frame 1, two mounting frame 1 between slidingly connected with sliding frame 4, the surface of sliding frame 4 slidingly connected with slide bar 6, the surface of slide bar 6 is fixedly installed with fixed ring 8, the inside rotationally connected with tool placing shell 11 of fixed ring 8, the surface of tool placing shell 11 is evenly provided with through hole, the inside fixed mounting for loading tool of placing cylinder 13 of through hole, the inside of placing cylinder 13 is provided with the clamping mechanism for clamping tool, the surface of fixed ring 8 is provided with the drive mechanism of driving tool placing shell 11 to rotate, the surface of slide bar 6 is fixedly installed with third electric telescopic rod 7, the output end port of third electric telescopic rod 7 is fixedly installed with thimble 18, in use the whole device is installed in the inside of machine tool, and is installed in the front upper of machine tool spindle, installs placing cylinder 13 in the inside of tool placing shell 11, wherein the size of placing cylinder 13 is selected according to different tools suitable model, when needing to replace tool, first the whole sliding frame 4 is slid downwards, until the placing cylinder 13 of tool placing shell 11 lowest place is aligned with spindle, the tool placing shell 11 is rotated using drive mechanism, to make the tool being used on spindle and corresponding placing cylinder 13 align, then make slide bar 6 slide towards spindle, until placing cylinder 13 is set on spindle tool, then make spindle and tool separate, so that the tool can be clamped in placing cylinder 13 and is fixed using clamping mechanism, improve stability, then make slide bar 6 slide towards the direction away from spindle, again using drive mechanism drives tool placing shell 11 to rotate, make the tool needing to be installed rotate to align with spindle, then again using slide bar 6 moves the whole tool placing shell 11 and tool to spindle position and installs, wherein when the tool is separated from placing cylinder 13 and installed with spindle, third electric telescopic rod 7 can be used to push thimble 18, so that thimble 18 pushes tool to separate from placing cylinder 13, convenient to use.

[0027] Further, the inner part of the two mounting frames 1 is fixedly installed with a first electric telescopic rod 3, the output end port of the two first electric telescopic rods 3 is fixedly connected with a sliding frame 4, the surface of the sliding frame 4 is fixedly installed with a second electric telescopic rod 5, the output end port of the second electric telescopic rod 5 is fixedly connected with a sliding rod 6, the first electric telescopic rod 3 can drive the sliding frame 4 to move in the vertical direction, and the second electric telescopic rod 5 can drive the sliding rod 6 to slide in the horizontal direction.

[0028] Further, the driving mechanism comprises a motor 9, the motor 9 is fixedly installed on the surface of the fixed ring 8, the output shaft port of the motor 9 is fixedly installed with a gear 10, the surface of the cutter placing shell 11 is fixedly sleeved with a tooth ring 17, the gear 10 is engaged with the tooth ring 17, in use, the motor 9 is started, the motor 9 drives the gear 10 to rotate, the gear 10 drives the tooth ring 17 to rotate, thereby driving the cutter placing shell 11 to rotate in the fixed ring 8, and then the corresponding placing barrel 13 is aligned with the main shaft.

[0029] Further, the end of the placing barrel 13 is fixedly installed with a strong magnet 12, the strong magnet 12 is arranged in an annular structure to achieve the purpose that the ejector pin 18 penetrates the strong magnet 12 and pushes the cutter, by arranging the strong magnet 12, the cutter placed in the placing barrel 13 can be attracted by the strong magnet 12, so that it cannot easily separate from the placing barrel 13, when it is needed to separate the cutter from the placing barrel 13 for installation, the ejector pin 18 can be penetrated through the center hole of the strong magnet 12, and then pushed out.

[0030] Further, the clamping mechanism comprises a clamping rod 14, three clamping rods 14 are arranged in the inner part of the three accommodating grooves 16 of the inner wall of the placing barrel 13, the surface of the clamping rod 14 is fixedly installed with a spring 15, one end of the spring 15 away from the clamping rod 14 is fixedly connected with the accommodating groove 16, and the end of the clamping rod 14 away from the strong magnet 12 is arranged as an inclined surface, in use, the three clamping rods 14 can be clamped to the cutter by the elastic force of the spring 15, the inclined surface at the end of the clamping rod 14 can retract into the placing groove under the force of the inclined surface when the cutter is inserted into the placing barrel 13, so that the cutter cannot be blocked.

[0031] Further, the top of the mounting frame 1 is provided with a bolt 2, the device can be installed on the top wall of the machine tool shell by arranging the bolt 2.

[0032] In summary, the whole device is installed in the interior of the machine tool in use, and is installed above the front of the main shaft of the machine tool, the placing barrel 13 is installed in the interior of the tool placing shell 11, the size of the placing barrel 13 is selected according to different tools, when the tool needs to be replaced, first, the whole sliding frame 4 is slid downward until the placing barrel 13 at the lowest position of the tool placing shell 11 is aligned with the main shaft, the driving mechanism is used to drive the tool placing shell 11 to rotate, so that the tool being used on the main shaft is aligned with the corresponding placing barrel 13, then the slide rod 6 is slid toward the main shaft until the placing barrel 13 is sleeved on the tool of the main shaft, then the main shaft is separated from the tool, so that the tool can be clamped in the placing barrel 13 and is fixed by the clamping mechanism, the stability is improved, then the slide rod 6 is slid away from the main shaft, the driving mechanism is used to drive the tool placing shell 11 to rotate again, so that the tool needing to be installed is rotated to be aligned with the main shaft, then the whole tool placing shell 11 and the tool are moved to the position of the main shaft for installation by the slide rod 6 again, when the tool is separated from the placing barrel 13 and is installed on the main shaft, the third electric telescopic rod 7 is used to push the ejector pin 18, so that the ejector pin 18 pushes the tool to separate from the placing barrel 13, the use is facilitated, the first electric telescopic rod 3 is used to drive the sliding frame 4 to move in the vertical direction, the second electric telescopic rod 5 is used to drive the slide rod 6 to slide in the horizontal direction, in use, the motor 9 is started, the motor 9 drives the gear 10 to rotate, the gear 10 drives the gear ring 17 to rotate, so that the tool placing shell 11 is rotated in the fixed ring 8, and then the corresponding placing barrel 13 is aligned with the main shaft, the powerful magnet 12 is used, so that the tool placed in the interior of the placing barrel 13 is attracted by the powerful magnet 12, so that the tool cannot easily separate from the placing barrel 13, when the tool needs to be separated from the placing barrel 13 for installation, the ejector pin 18 is penetrated through the center hole of the powerful magnet 12, and then is pushed out, the clamping mechanism is used in use, the three clamping rods 14 are subjected to the elastic force of the springs 15, so that the clamping rods 14 are pressed and fixed to the tool, the inclined surface provided at the end of the clamping rod 14 can be retracted into the placing groove when the tool is inserted into the placing barrel 13, so that the clamping rod 14 is not blocked when the tool is inserted, the bolt 2 is used to install the device on the top wall of the machine tool shell.

[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A tool changing device for a CNC machine tool, characterized in that, It includes two mounting brackets (1), a sliding bracket (4) is slidably connected between the two mounting brackets (1), a sliding rod (6) is slidably connected to the surface of the sliding bracket (4), a fixing ring (8) is fixedly installed on the surface of the sliding rod (6), a tool placement shell (11) is rotatably connected inside the fixing ring (8), a tool placement shell (11) is evenly provided on the surface of the tool placement shell (11), a placement cylinder (13) for holding the tool is fixedly installed inside the through hole, a clamping mechanism for clamping the tool is provided inside the placement cylinder (13), a driving mechanism for driving the tool placement shell (11) to rotate is provided on the surface of the fixing ring (8), a third electric telescopic rod (7) is fixedly installed on the surface of the sliding rod (6), and a pin (18) is fixedly installed at the output end of the third electric telescopic rod (7).

2. The tool changing device for a CNC machine tool according to claim 1, characterized in that, The two mounting brackets (1) are each fixedly installed with a first electric telescopic rod (3), and the output end ports of the two first electric telescopic rods (3) are fixedly connected to the sliding bracket (4). The surface of the sliding bracket (4) is fixedly installed with a second electric telescopic rod (5), and the output end port of the second electric telescopic rod (5) is fixedly connected to the slide rod (6).

3. The tool changing device for a CNC machine tool according to claim 1, characterized in that, The drive mechanism includes a motor (9), which is fixedly mounted on the surface of a fixed ring (8). A gear (10) is fixedly mounted on the output shaft port of the motor (9). A toothed ring (17) is fixedly sleeved on the surface of the tool placement shell (11). The gear (10) and the toothed ring (17) mesh.

4. The tool changing device for a CNC machine tool according to claim 1, characterized in that, A powerful magnet (12) is fixedly installed at the end of the placement cylinder (13). The powerful magnet (12) is set as a ring structure so that the ejector pin (18) passes through the powerful magnet (12) and pushes the cutter.

5. The tool changing device for a CNC machine tool according to claim 4, characterized in that, The clamping mechanism includes clamping rods (14). The inner wall of the placement cylinder (13) is evenly provided with three receiving slots (16). There are three clamping rods (14) and they are respectively arranged inside the receiving slots (16). A spring (15) is fixedly installed on the surface of the clamping rod (14). The end of the spring (15) away from the clamping rod (14) is fixedly connected to the receiving slot (16). The end of the clamping rod (14) away from the strong magnet (12) is set as an inclined surface.

6. The tool changing device for a CNC machine tool according to claim 1, characterized in that, The top of the mounting bracket (1) is provided with bolts (2).

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