A machining center tool changer

Abstract

The utility model relates to tool changer technical field provides a machining center tool changer, including the fixed frame, the fixed frame inner surface fixed mounting has a plurality of first electric control push rod, two limit sliding slot, open in the fixed frame inner surface, two limit sliding slot sliding connection has the moving plate, and the moving plate is fixedly connected with a plurality of first electric control push rod output end, and the moving plate outer surface fixedly arranged with a plurality of rod seat, and one side two rod seat opposite surface fixedly arranged with the guide slide bar, and the other side two rod seat opposite surface rotationally connected with the screw rod, and the device sets up the structure that different outer diameter size's tool can all carry out fastening clamping and quick replacement, improves the tool adaptation range of device, improves the processing procedure flexibility, can satisfy the processing demand of many varieties, small batch or complex technology, improves the machining accuracy, reduces the surface roughness, improves the automation production efficiency and product pass rate of device, reduces the processing cost and improves equipment utilization.

Description

Technical Field

[0001] This utility model relates to the technical field of tool changing devices, and in particular to a tool changing device for a machining center. Background Technology

[0002] A machining center is an automated CNC machine tool that integrates multiple cutting functions and is widely used in industries such as machinery manufacturing, automobiles, and molds. During the machining process, due to the limited tool life, the need for multi-process machining, and the adaptation of materials and processes, the machining center needs to frequently change tools.

[0003] In the prior art, such as Chinese Publication No. CN221833879U, this utility model relates to the field of mechanical equipment and discloses a quick tool changing structure for a machining center. It includes a tool disc, four retraction holes on the outside of the tool disc, a circular hole in the center of the tool disc, and four sliding holes on the inner wall of the tool disc. A slider is fitted onto the inner wall of each of the four sliding holes, and a tool body is threadedly connected to the bottom surface of each of the four sliders. A connecting block is fixedly installed on the top of each of the four retraction holes. This application uses a corresponding telescopic motor to push a telescopic rod, causing one end of the slider to move downwards. The telescopic column on the top of the connecting block retracts downwards, and the telescopic column on the connecting block also falls with the slider. At this time, the tool body also moves downwards, stopping operation below the fixed disc to achieve automatic tool changing.

[0004] While the above-mentioned solutions have the advantages mentioned above, their disadvantages lie in the lack of a structure that can securely clamp and quickly change tools with different outer diameters. This can limit the tool compatibility of the device, reduce the flexibility of the machining program, and make it difficult to meet the machining needs of multiple varieties, small batches, or complex processes. At the same time, the inconvenience of changing tools can easily lead to loss of control over machining accuracy, affecting surface roughness and product qualification rate, reducing the automated production efficiency of the device, increasing processing costs, and resulting in low equipment utilization. Utility Model Content

[0005] The purpose of this utility model is to provide a tool changing device for machining centers. This utility model is designed with a structure that can fasten and clamp tools of different outer diameters and change them quickly, thereby improving the tool compatibility range of the device, increasing the flexibility of the machining program, meeting the machining needs of multiple varieties, small batches or complex processes, improving machining accuracy, reducing surface roughness, improving the automated production efficiency and product qualification rate of the device, reducing processing costs and improving equipment utilization.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a tool changing device for a machining center, comprising:

[0007] The fixed frame, wherein multiple first electrically controlled push rods are fixedly installed on the inner surface of the fixed frame, and further includes:

[0008] Two limiting slide grooves are formed on the inner surface of the fixed frame. A movable plate is slidably connected to the two limiting slide grooves. The movable plate is fixedly connected to the output ends of multiple first electrically controlled push rods. Multiple rod seats are fixedly arranged on the outer surface of the movable plate. A guide slide rod is fixedly arranged on the opposite face of two rod seats on one side. A lead screw is rotatably connected to the opposite face of two rod seats on the other side. A servo motor is fixedly installed on the outer surface of the movable plate. The output shaft of the servo motor is fixedly connected to one end face of the lead screw. A replacement table is threadedly connected to the outer surface of the lead screw. The replacement table is connected to the guide slide rod. A sliding connection is provided. A second electrically controlled push rod is fixedly installed on the inner surface of the changing table. A toothed plate is fixedly installed at the output end of the second electrically controlled push rod. Two first rotating frames are fixedly installed on the outer surface of the changing table. Rotating arms are rotatably connected to the inner surfaces of both first rotating frames. Clamping plates are fixedly installed between the two rotating arms and the outer surface of the toothed plate. Two second rotating frames are fixedly installed on the outer surface of the changing table. Gears are rotatably connected to the inner surfaces of both second rotating frames. Both gears mesh with the toothed plates and respectively mesh with the two rotating arms. Multiple... The output end of the first electrically controlled push rod drives the moving plate to move downward along the limit slide grooves on both sides. The servo motor is activated, and its output shaft drives the lead screw to rotate. Under the limit of the guide slide, the lead screw drives the changing table to move along the guide slide to the tool to be replaced inside the protective plate. The second electrically controlled push rod is activated, and its output end drives the gear plate to move, causing the gears on both sides to rotate within the two second rotating frames. This causes the rotating arms on both sides to rotate within the two first rotating frames. The gear plate and the two rotating arms drive multiple clamping plates to rotate to contact the tool surface, thus securing the tool. The servo motor drives the lead screw to rotate. This causes the tool to be moved along the guide slide of the tool changing table and removed. The first electrically controlled push rod moves the moving plate and the tool upwards and removes them. The tool is then placed in multiple clamping plates. The second electrically controlled push rod rotates the toothed plate and two rotating arms to clamp the tool. The first electrically controlled push rod moves the tool downwards and the servo motor moves the tool changing table until the tool engages with the machining mechanism inside the protective plate. The second electrically controlled push rod adjusts the toothed plate to rotate the two rotating arms and multiple clamping plates at different angles, allowing the device to clamp and replace tools of different outer diameters.

[0009] Preferably, a mounting plate is fixedly provided on the bottom outer surface of the fixing frame, and a protective plate is slidably connected to the outer surface of the mounting plate, thereby fixing the fixing frame to the protective plate through the mounting plate.

[0010] Preferably, the inner surface of the mounting plate is threaded with a plurality of fastening bolts, all of which are threaded to the protective plate, thereby fastening the protective plate to the mounting plate.

[0011] Preferably, a movable door is slidably connected to the inner surface of the protective plate, and two handles are fixedly provided on the outer surface of the movable door, which can be opened by holding the two handles.

[0012] Preferably, a safety door is rotatably connected to the outer surface of the protective plate, and an observation window is fixedly embedded in the inner surface of the safety door. The protective plate, together with the safety door, provides safety protection for the operator, and the workpiece inside the protective plate can be observed through the observation window.

[0013] Preferably, a base plate is fixedly provided on the bottom outer surface of the protective plate, and a base platform is fixedly provided on the bottom outer surface of the base plate, with the base plate and base platform cooperating to support the protective plate.

[0014] Preferably, a plurality of support seats are fixedly provided on the outer surface of the bottom of the base, and the plurality of support seats are symmetrically arranged near the four corners of the bottom of the base, and the plurality of support seats provide stable support for the main body of the device.

[0015] Preferably, a plurality of reinforcing ribs are fixedly provided on the outer surface of the mounting plate, and the plurality of reinforcing ribs are fixedly connected to the outer surface of the fixing frame. The plurality of reinforcing ribs improve the connection strength and stability between the fixing frame and the mounting plate.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] This utility model provides a device with a structure that can clamp and quickly change cutting tools of different outer diameters, thereby increasing the device's tool compatibility range, improving the flexibility of the machining process, meeting the processing needs of multiple varieties, small batches, or complex processes, improving machining accuracy, reducing surface roughness, increasing the device's automated production efficiency and product qualification rate, reducing processing costs, and increasing equipment utilization. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a tool changing device for a machining center provided by this utility model;

[0019] Figure 2 This is a front view structural diagram of a tool changing device for a machining center provided by this utility model;

[0020] Figure 3 A side perspective view of a tool changing device for a machining center provided by this utility model;

[0021] Figure 4 This utility model provides a tool changing device for a machining center. Figure 1 A magnified three-dimensional structural diagram at point A in the diagram.

[0022] Legend:

[0023] 1. Fixed frame; 2. First electrically controlled push rod; 3. Moving plate; 4. Servo motor; 5. Mounting plate; 6. Fastening bolt; 7. Base; 8. Observation window; 9. Safety door; 10. Lead screw; 11. Rod seat; 12. Moving door; 13. Handle; 14. Protective plate; 15. Base plate; 16. Support seat; 17. Limiting slide groove; 18. Changing table; 19. Second electrically controlled push rod; 20. First rotating frame; 21. Rotating arm; 22. Clamping plate; 23. Second rotating frame; 24. Toothed plate; 25. Gear; 26. Reinforcing rib plate; 27. Guide slide rod. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1, as Figures 1 to 4As shown, this utility model provides a tool changing device for a machining center, including a fixed frame 1. Multiple first electrically controlled push rods 2 are fixedly installed on the inner surface of the fixed frame 1. Two limiting slide grooves 17 are formed on the inner surface of the fixed frame 1, and a movable plate 3 is slidably connected to the two limiting slide grooves 17. The movable plate 3 is fixedly connected to the output ends of the multiple first electrically controlled push rods 2. Multiple rod seats 11 are fixedly installed on the outer surface of the movable plate 3. Guide slide rods 27 are fixedly installed on the opposite faces of two rod seats 11 on one side, and lead screws 10 are rotatably connected to the opposite faces of two rod seats 11 on the other side. A servo motor 4 is fixedly installed on the outer surface of the movable plate 3. The output shaft of the servo motor 4 is fixedly connected to one end face of the lead screw 10. The outer surface of the lead screw 10... A changing table 18 is threadedly connected and slidably connected to a guide slide rod 27. A second electrically controlled push rod 19 is fixedly installed on the inner surface of the changing table 18, and a toothed plate 24 is fixedly installed at the output end of the second electrically controlled push rod 19. Two first rotating frames 20 are fixedly installed on the outer surface of the changing table 18, and rotating arms 21 are rotatably connected to the inner surfaces of the two first rotating frames 20. Clamping plates 22 are fixedly installed on the outer surfaces of the two rotating arms 21 and the toothed plate 24. Two second rotating frames 23 are fixedly installed on the outer surface of the changing table 18, and gears 25 are rotatably connected to the inner surfaces of the two second rotating frames 23. Both gears 25 mesh with the toothed plate 24, and each gear 25 meshes with one of the two rotating arms 21. Multiple first electrically controlled push rods 2 drive the moving plate 3 to move down along the two side limit slide grooves 17, activating the servo motor 4. The output shaft of the servo motor 4 drives the lead screw 10 to rotate. Under the limit of the guide slide 27, the lead screw 10 drives the changing table 18 to move along the guide slide 27 to the tool to be replaced inside the protective plate 14. The second electrically controlled push rod 19 is activated, and the output end of the second electrically controlled push rod 19 drives the gear plate 24 to move, driving the gears 25 on both sides to rotate in the two second rotating frames 23, and driving the rotating arms 21 on both sides to rotate in the two first rotating frames 20. The gear plate 24 and the two rotating arms 21 drive multiple clamping plates 22 to rotate to contact the tool surface, clamping the tool securely. The servo motor 4 drives the... The rotating lead screw 10 drives the changing table 18 to move along the guide slide 27 to remove the tool. The first electrically controlled push rod 2 drives the moving plate 3 and the tool to move upward and remove the tool. The replacement tool is placed in multiple clamping plates 22. The second electrically controlled push rod 19 drives the toothed plate 24 and the two rotating arms 21 to rotate and clamp the tool. The first electrically controlled push rod 2 drives the tool to move downward and the servo motor 4 drives the changing table 18 and the tool to move until the tool is engaged with the machining mechanism inside the protective plate 14. The second electrically controlled push rod 19 adjusts the toothed plate 24 to drive the two rotating arms 21 and the multiple clamping plates 22 to rotate at different angles, so that the device can clamp and replace tools with different outer diameters.

[0027] Furthermore, such as Figures 1 to 4 As shown, a mounting plate 5 is fixedly installed on the bottom outer surface of the mounting bracket 1, and a protective plate 14 is slidably connected to the outer surface of the mounting plate 5. The mounting bracket 1 is fixed to the protective plate 14 by the mounting plate 5.

[0028] Furthermore, such as Figures 1 to 4 As shown, the inner surface of the mounting plate 5 is threaded with multiple fastening bolts 6, which are all threaded to the protective plate 14, thereby fastening the protective plate 14 to the mounting plate 5.

[0029] Furthermore, such as Figures 1 to 4 As shown, a sliding door 12 is slidably connected to the inner surface of the protective plate 14, and two handles 13 are fixedly installed on the outer surface of the sliding door 12. The sliding door 12 can be opened by holding the two handles 13.

[0030] Furthermore, such as Figures 1 to 4 As shown, a safety door 9 is rotatably connected to the outer surface of the protective plate 14, and an observation window 8 is fixedly embedded in the inner surface of the safety door 9. The protective plate 14, together with the safety door 9, provides safety protection for the operator, and the workpiece inside the protective plate 14 can be observed through the observation window 8.

[0031] Furthermore, such as Figures 1 to 4 As shown, a base plate 15 is fixedly installed on the bottom outer surface of the protective plate 14, and a base platform 7 is fixedly installed on the bottom outer surface of the base plate 15. The base plate 15 and the base platform 7 support the protective plate 14.

[0032] Furthermore, such as Figures 1 to 4 As shown, multiple support seats 16 are fixedly installed on the bottom outer surface of the base 7. The multiple support seats 16 are symmetrically arranged near the four corners of the bottom of the base 7, and the multiple support seats 16 provide stable support for the main body of the device.

[0033] Furthermore, such as Figures 1 to 4 As shown, multiple reinforcing ribs 26 are fixedly provided on the outer surface of the mounting plate 5. All reinforcing ribs 26 are fixedly connected to the outer surface of the fixing frame 1. The multiple reinforcing ribs 26 improve the connection strength and stability between the fixing frame 1 and the mounting plate 5.

[0034] Working principle: By holding the handle 13 and sliding it open the movable door 12, multiple first electrically controlled push rods 2 are opened. The output ends of the multiple first electrically controlled push rods 2 drive the movable plate 3 to move down along the limit slide grooves 17 on both sides. The servo motor 4 is activated, and the output shaft of the servo motor 4 drives the lead screw 10 to rotate. Under the limit of the guide slide 27, the lead screw 10 drives the changing table 18 to move along the guide slide 27 to the tool to be replaced inside the protective plate 14. The second electrically controlled push rod 19 is activated, and the output end of the second electrically controlled push rod 19 drives the gear plate 24 to move, which drives the gears 25 on both sides to rotate in the two second rotating frames 23, and drives the rotating arms 21 on both sides to rotate in the two first rotating frames 20. The gear plate 24 and the two rotating arms 21 drive multiple clamping plates 22 to rotate to contact the tool surface and clamp the tool. The servo motor 4 drives the lead screw 1 to rotate. The rotation of the 0-axis causes the changing table 18 to move along the guide slide 27 to remove the tool. The first electrically controlled push rod 2 drives the moving plate 3 and the tool to move upward and remove the tool. The replacement tool is placed in multiple clamping plates 22. The second electrically controlled push rod 19 drives the toothed plate 24 and two rotating arms 21 to rotate and clamp the tool. The first electrically controlled push rod 2 drives the tool to move downward and the servo motor 4 drives the changing table 18 and the tool to move until the tool is engaged with the machining mechanism inside the protective plate 14. The second electrically controlled push rod 19 adjusts the toothed plate 24 to drive the two rotating arms 21 and multiple clamping plates 22 to rotate at different angles, so that the device can clamp and replace tools with different outer diameters, improve the tool compatibility range of the device, improve the flexibility of the machining program, and improve the automation production efficiency and product qualification rate of the device.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A machining center tool changer comprising: The fixed frame (1), wherein a plurality of first electrically controlled push rods (2) are fixedly installed on the inner surface of the fixed frame (1), characterized in that it further includes: Two limiting slide grooves (17) are formed on the inner surface of the fixed frame (1). The two limiting slide grooves (17) are slidably connected to a moving plate (3). The moving plate (3) is fixedly connected to the output ends of multiple first electric control push rods (2). Multiple rod seats (11) are fixedly provided on the outer surface of the moving plate (3). A guide slide rod (27) is fixedly provided on the opposite face of two rod seats (11) on one side. A lead screw (10) is rotatably connected to the opposite face of two rod seats (11) on the other side. A servo motor (4) is fixedly installed on the outer surface of the moving plate (3). The output shaft of the servo motor (4) is fixedly connected to one end face of the lead screw (10). A replacement table (18) is threadedly connected to the outer surface of the lead screw (10). The replacement table (18) slides with the guide slide rod (27). The changing table (18) is connected to a second electrically controlled push rod (19) fixedly installed on its inner surface. The output end of the second electrically controlled push rod (19) is fixedly provided with a toothed plate (24). The changing table (18) is fixedly provided with two first rotating frames (20). The inner surfaces of the two first rotating frames (20) are rotatably connected with rotating arms (21). The two rotating arms (21) and the outer surfaces of the toothed plate (24) are fixedly provided with clamping plates (22). The changing table (18) is fixedly provided with two second rotating frames (23). The inner surfaces of the two second rotating frames (23) are rotatably connected with gears (25). The two gears (25) mesh with the toothed plate (24) and mesh with the two rotating arms (21) respectively.

2. The tool changing device for a machining center according to claim 1, characterized in that: The mounting plate (5) is fixedly installed on the bottom outer surface of the fixed frame (1), and a protective plate (14) is slidably connected to the outer surface of the mounting plate (5).

3. The tool changing device for a machining center according to claim 2, characterized in that: The inner surface of the mounting plate (5) is threaded with a plurality of fastening bolts (6), and the plurality of fastening bolts (6) are threadedly connected to the protective plate (14).

4. The tool changing device for a machining center according to claim 2, characterized in that: The inner surface of the protective plate (14) is slidably connected to a movable door (12), and the outer surface of the movable door (12) is fixedly provided with two handles (13).

5. A tool changing device for a machining center according to claim 2, characterized in that: The outer surface of the protective plate (14) is rotatably connected to a safety door (9), and the inner surface of the safety door (9) is fixedly embedded with an observation window (8).

6. A tool changing device for a machining center according to claim 2, characterized in that: A base plate (15) is fixedly installed on the bottom outer surface of the protective plate (14), and a base platform (7) is fixedly installed on the bottom outer surface of the base plate (15).

7. A tool changing device for a machining center according to claim 6, characterized in that: Multiple support seats (16) are fixedly provided on the bottom outer surface of the base (7), and the multiple support seats (16) are symmetrically arranged near the four corners of the bottom of the base (7).

8. A tool changing device for a machining center according to claim 2, characterized in that: The mounting plate (5) has multiple reinforcing ribs (26) fixedly installed on its outer surface, and the multiple reinforcing ribs (26) are all fixedly connected to the outer surface of the fixing frame (1).

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