Tool changing device for machine tool magazine

Abstract

The utility model discloses a tool changer for a machine tool magazine, which belongs to the technical field of machine tool magazines and comprises a cutterhead, a plurality of first tool holders with equal angles are arranged on the circumference of the cutterhead, a mounting column is rotatably mounted between the middle of the outer wall of one end of the cutterhead and the inner wall of a machine tool, and a tool changing structure is arranged at the bottom end of the circumference of the cutterhead. A cleaning frame is arranged on the lower side of one end of the cutter head, a liquid storage cylinder is fixedly placed on the outer wall of the top end of the cleaning frame, a feeding opening is formed in the middle of the other end of the cleaning frame, and a blow-off pipe is fixedly connected to the bottom end of the cleaning frame. A new cutter is conveyed, an old cutter and a second cutter holder for clamping the old cutter are located in the cleaning frame, the extension length of the air cylinder is judged and determined through the distance sensor, and then the air pump is matched with the liquid storage cylinder, the flow dividing disc, the spraying head and the spraying pipes distributed in the obtuse-angle fan shape to work. The old cutter and the second cutter holder for clamping the old cutter are firstly washed and then air-dried, and dust, chippings and sewage are guided out through the blow-off pipe, so that the old cutter is completely put into the cutter head.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool tool magazines, in particular to a tool changing device for a machine tool tool magazine. Background Technique

[0002] A tool magazine system is a device that provides the tool storage and tool changing requirements during the automated machining process. Its automatic tool changing mechanism and tool magazine that can store multiple tools have changed the traditional human-based production method. Through the control of computer programs, various different machining requirements can be completed, such as milling, drilling, boring, tapping, etc., greatly shortening the machining time and reducing the production cost. This is the biggest feature of the tool magazine system.

[0003] After retrieval, the patent publication number CN215357419U discloses a patent named a tool changing device for a CNC machine tool tool magazine. The technical problem it needs to solve is that it requires manual tool changing by workers, with low tool changing efficiency, being very inconvenient and very unsafe. By using a magnet to adsorb the tool head in the second groove, after the rotating rod rotates counterclockwise, the tool head is clamped in the clamping component, making the installation more convenient; however, there are still the following drawbacks to be solved: the tool replaced by the tool changing plate is a used tool. After working inside the machine tool, its surface is contaminated with dust and debris. When it is re-placed on the tool magazine, the residual dust and debris on its surface may remain in the tool magazine, and the tool changing plate is also contaminated with dust and debris, which will contaminate the new tool when the tool changing plate replaces the new tool. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a tool changing device for a machine tool tool magazine.

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

[0006] A tool changing device for a machine tool tool magazine includes a tool disc. A plurality of equally angled first tool holders are arranged on the circumference of the tool disc. A mounting column is rotatably installed between the middle of the outer wall at one end of the tool disc and the inner wall of the machine tool. A tool changing structure is arranged at the bottom end of the circumference of the tool disc. A cleaning frame is arranged on the lower side of one end of the tool disc. A liquid storage cylinder is fixedly placed on the top outer wall of the cleaning frame. A feed opening is opened in the middle of the other end of the cleaning frame. A sewage pipe is fixedly connected to the bottom end of the cleaning frame. A distance sensor is fixedly installed in the middle of the inner wall at one end of the cleaning frame. An air pump is fixedly installed at the other end of the top inner wall of the cleaning frame. A flow distribution plate is fixedly installed on the top inner wall of the cleaning frame. A spray head is fixedly installed in the middle of the bottom end of the flow distribution plate. A plurality of equally angled spray pipes are fixedly connected to the bottom end of the flow distribution plate, and the plurality of spray pipes are distributed in an obtuse-angled fan shape.

[0007] Preferably, a transmission gear is fixedly sleeved on the outer circumference of the mounting column, and a rack is meshed with the top of the circumference of the transmission gear. An electric push rod is fixedly installed between the middle of the rack and the machine tool.

[0008] Preferably, the tool changing structure includes a transposition motor, and an installation block is fixedly installed at the output end of the transposition motor. Cylinders are fixedly installed in the middle of both ends of the installation block, and second tool holders are fixedly installed at the movable ends of the cylinders.

[0009] Preferably, both of the second tool holders are located at the bottom end of the circumference of the tool disc.

[0010] Preferably, one outer wall of one end of the cleaning frame is fixedly installed on the inner wall of the machine tool, and the bottom end of the cleaning frame is conical.

[0011] Preferably, a three-way pipe and a three-way valve are arranged between the outlet end of the liquid storage cylinder, the inlet end of the flow dividing disc and the outlet end of the air pump.

[0012] Preferably, the distance sensor is located in the middle of the feeding opening, and the centers of the distance sensor and the installation block are on the same straight line.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. A tool changing device for a machine tool tool magazine proposed by the present utility model. Since the tool changing mechanism is located at the bottom end of the tool disc, and the centers of the distance sensor and the installation block are on the same straight line. When the machine tool changes tools, the tool disc first rotates under the cooperation of the electric push rod, the toothed plate and the transmission gear, so that a certain tool is located at the bottom end of the circumference of the tool disc. Then, the transposition motor and the cylinder cooperate to make one of the second tool holders located at the bottom end of the circumference of the tool disc, so that one of the second tool holders holds the new tool. Then, the transposition motor and the cylinder cooperate again to make the other second tool holder hold the old tool. Finally, the transposition motor and the cylinder cooperate for the third time to transfer the new tool. The old tool and the second tool holder holding it are located inside the cleaning frame. The distance sensor judges and determines the extension length of the cylinder. Then, the air pump, the liquid storage cylinder, the flow dividing disc, the spray head and a plurality of spray pipes distributed in an obtuse-angled fan shape cooperate to first wash and then air-dry the old tool and the second tool holder holding it. The dust debris and sewage are all discharged through the sewage pipe, and the old tool is put into the tool disc cleanly.

[0015] 2. A tool changing device for a machine tool tool magazine proposed by the present utility model. Since a spray head is fixedly installed in the middle of the bottom end of the flow dividing disc, a plurality of spray pipes are fixedly connected to the bottom end of the flow dividing disc, and the plurality of spray pipes are distributed in an obtuse-angled fan shape, the old tool and the second tool holder holding it located inside the cleaning frame can be comprehensively wrapped by the cleaning liquid and the air flow, ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a tool changing device for a machine tool tool magazine proposed by the present utility model;

[0017] Figure 2Rear view structural schematic diagram of a tool changing device for a machine tool tool magazine proposed by the present utility model;

[0018] Figure 3 Structural schematic diagram of a cleaning frame of a tool changing device for a machine tool tool magazine proposed by the present utility model;

[0019] Figure 4 Bottom view structural schematic diagram of a cleaning frame of a tool changing device for a machine tool tool magazine proposed by the present utility model.

[0020] In the figure: 1 tool disc, 2 first tool holder, 3 mounting column, 4 transmission gear, 5 toothed plate, 6 electric push rod, 7 transposition motor, 8 mounting block, 9 air cylinder, 10 second tool holder, 11 liquid storage cylinder, 12 cleaning frame, 13 feed opening, 14 sewage discharge pipe, 15 distance sensor, 16 flow dividing disc, 17 spray head, 18 spray pipe, 19 air pump. Specific implementation manner

[0021] Referring to Figures 1-4 , a tool changing device for a machine tool tool magazine includes a tool disc 1. A plurality of equally angled first tool holders 2 are arranged on the circumference of the tool disc 1. A mounting column 3 is rotatably installed between the middle of the outer wall at one end of the tool disc 1 and the inner wall of the machine tool. A tool changing structure is arranged at the bottom end of the circumference of the tool disc 1. A cleaning frame 12 is arranged on the lower side of one end of the tool disc 1. A liquid storage cylinder 11 is fixedly placed on the top outer wall of the cleaning frame 12. A feed opening 13 is opened in the middle of the other end of the cleaning frame 12. A sewage discharge pipe 14 is fixedly connected to the bottom end of the cleaning frame 12. A distance sensor 15 is fixedly installed in the middle of the inner wall at one end of the cleaning frame 12. An air pump 19 is fixedly installed at the other end of the top inner wall of the cleaning frame 12. A flow dividing disc 16 is fixedly installed on the top inner wall of the cleaning frame 12. A spray head 17 is fixedly installed in the middle of the bottom end of the flow dividing disc 16. A plurality of equally angled spray pipes 18 are fixedly connected to the bottom end of the flow dividing disc 16, and the plurality of spray pipes 18 are distributed in an obtuse-angled fan shape.

[0022] In the present utility model, a transmission gear 4 is fixedly sleeved on the outer circumference of the mounting column 3, and a toothed plate 5 is meshed with the top end of the circumference of the transmission gear 4. An electric push rod 6 is fixedly installed between the middle of the toothed plate 5 and the machine tool;

[0023] The tool changing structure includes a transposition motor 7, and a mounting block 8 is fixedly installed at the output end of the transposition motor 7. Air cylinders 9 are fixedly installed in the middle of both ends of the mounting block 8, and second tool holders 10 are fixedly installed at the movable ends of the air cylinders 9;

[0024] Both of the two second tool holders 10 are located at the bottom end of the circumference of the tool disc 1;

[0025] One end outer wall of the cleaning frame 12 is fixedly installed with the inner wall of the machine tool, and the bottom end of the cleaning frame 12 is conical;

[0026] A three-way pipe and a three-way valve are provided between the outlet end of the liquid storage cylinder 11, the inlet end of the flow dividing plate 16, and the outlet end of the air pump 19;

[0027] The distance sensor 15 is located in the middle of the feeding opening 13, and the centers of the distance sensor 15 and the mounting block 8 are on the same straight line.

[0028] Working principle: The tool changing mechanism is located at the bottom end of the tool disc 1, and the centers of the distance sensor 15 and the mounting block 8 are on the same straight line. When the machine tool changes tools, the tool disc 1 first rotates under the cooperation of the electric push rod 6, the toothed plate 5, and the transmission gear 4, so that a certain tool is located at the circumferential bottom end of the tool disc 1. Then, the transposition motor 7 and the cylinder 9 cooperate to make one of the second tool holders 10 located at the circumferential bottom end of the tool disc 1, so that one of the second tool holders 10 holds the new tool. Then, the transposition motor 7 and the cylinder 9 cooperate to make the other second tool holder 10 hold the old tool. Finally, the transposition motor 7 and the cylinder 9 cooperate for the third time to transfer the new tool. The old tool and the second tool holder 10 it holds are located inside the cleaning frame 12. The distance sensor 15 judges and determines the elongation length of the cylinder 9. Then, the air pump 19, the liquid storage cylinder 11, the flow dividing plate 16, the spray head 17, and a plurality of spray pipes 18 distributed in an obtuse-angled fan shape cooperate to first wash and then air-dry the old tool and the second tool holder 10 it holds. The dust debris and sewage are discharged through the sewage pipe 14, and the old tool is cleanly placed into the tool disc 1;

[0029] A spray head 17 is fixedly installed in the middle of the bottom end of the flow dividing plate 16. A plurality of spray pipes 18 are fixedly connected to the bottom end of the flow dividing plate 16 at equal angles, and the plurality of spray pipes 18 are distributed in an obtuse-angled fan shape, so that the old tool and the second tool holder 10 it holds located inside the cleaning frame 12 can be comprehensively wrapped by the cleaning liquid and the air flow, ensuring the cleaning effect.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A tool changing device for a machine tool tool magazine, including a tool disc (1). A plurality of equally angled first tool holders (2) are arranged on the circumference of the tool disc (1). An installation column (3) is rotatably installed between the middle of the outer wall at one end of the tool disc (1) and the inner wall of the machine tool. A tool changing structure is arranged at the bottom end of the circumference of the tool disc (1). A cleaning frame (12) is arranged on the lower side of one end of the tool disc (1). It is characterized in that, A liquid storage cylinder (11) is fixedly placed on the outer wall of the top end of the cleaning frame (12). A feed opening (13) is formed in the middle of the other end of the cleaning frame (12). A sewage discharge pipe (14) is fixedly connected to the bottom end of the cleaning frame (12). A distance sensor (15) is fixedly installed in the middle of the inner wall of one end of the cleaning frame (12). An air pump (19) is fixedly installed at the other end of the inner wall of the top end of the cleaning frame (12). A flow distribution plate (16) is fixedly installed on the inner wall of the top end of the cleaning frame (12). A spray head (17) is fixedly installed in the middle of the bottom end of the flow distribution plate (16). A plurality of spray pipes (18) are fixedly connected to the bottom end of the flow distribution plate (16) at equal angles, and the plurality of spray pipes (18) are distributed in an obtuse-angled fan shape.

2. The tool changing device for a machine tool tool magazine according to claim 1, characterized in that, A transmission gear (4) is fixedly sleeved on the outer circumference of the mounting column (3), and a toothed plate (5) is engaged with the top end of the circumference of the transmission gear (4). An electric push rod (6) is fixedly installed between the middle of the toothed plate (5) and the machine tool.

3. The tool changing device for a machine tool tool magazine according to claim 1, characterized in that, The tool changing structure includes a position-changing motor (7), and an installation block (8) is fixedly installed at the output end of the position-changing motor (7). Cylinders (9) are fixedly installed in the middle of both ends of the installation block (8), and second tool holders (10) are fixedly installed at the movable ends of the cylinders (9).

4. The tool changing device for a machine tool tool magazine according to claim 3, characterized in that, Both of the second tool holders (10) are located at the bottom end of the circumference of the tool disc (1).

5. The tool changing device for a machine tool tool magazine according to claim 1, characterized in that, One end outer wall of the cleaning frame (12) is fixedly installed with the inner wall of the machine tool, and the bottom end of the cleaning frame (12) is conical.

6. The tool changing device for a machine tool tool magazine according to claim 1, characterized in that, A three-way pipe and a three-way valve are arranged between the outlet end of the liquid storage cylinder (11), the inlet end of the flow distribution plate (16), and the outlet end of the air pump (19).

7. The tool changing device for a machine tool tool magazine according to claim 3, characterized in that The distance sensor (15) is located in the middle of the feed opening (13), and the centers of the distance sensor (15) and the installation block (8) are on the same straight line.

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