A quick tool changer for a numerically controlled machine tool

Abstract

The utility model discloses a numerical control machine tool tool quick replacement device belongs to numerical control machine tool technical field, and this numerical control machine tool tool quick replacement device includes operation panel, sets up the moving frame above operation panel, sets up the lifting plate in moving frame inside, cooperation use through above each device, through the setting of unloading mechanism, when needing to replace tool body, manually push control ring upward, finally make that inclined block extrude insert block, make it to fixed cylinder internal direction remove, when insert block is completely separated from the slot, can carry out the replacement of tool body, when installing new tool body, directly insert fixed cylinder, top first contact the slope of insert block top end, and then extrude two insert blocks outward, when insert block reaches the same horizontal line with the slot, spring releases elastic force, and pushes insert block and reinserts the slot in new tool body side surface, and the whole process is short in time, and easy operation, and the replacement efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically a quick tool changing device for CNC machine tools. Background Technology

[0002] CNC machine tools, or numerical control machine tools, are automated machine tools equipped with a program control system. This system can logically process programs containing control codes or other symbolic instructions, decode them into coded digital forms, and input them to the CNC device through an information carrier. After processing, the CNC device sends out various control signals to precisely control the machine tool's movements, automatically completing the machining of parts according to the shape and size specified in the drawings. In addition, CNC machine tools can flexibly change different types of cutting heads according to the specific requirements of the parts being machined.

[0003] Machine tool tool clamping devices typically use manually tightened fixing bolts, which is particularly inconvenient when changing tools. Operators need to spend a lot of time and effort to loosen the bolts in order to change the tool. However, this working method is not only time-consuming but also inefficient.

[0004] Therefore, this utility model provides a quick tool changing device for CNC machine tools to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a quick tool changing device for CNC machine tools, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a quick tool changing device for CNC machine tools, comprising an operating table, a movable frame disposed above the operating table, a lifting plate disposed inside the movable frame, a mounting cylinder fixedly installed inside the lifting plate, a fixed cylinder fixedly installed inside the mounting cylinder, a tool body slidably installed inside the fixed cylinder, and a loading and unloading mechanism disposed inside the mounting cylinder for quickly changing the tool body.

[0009] The loading and unloading mechanism includes a telescopic rod fixedly installed on the inner wall of the mounting cylinder via a connecting block, an insert block fixedly installed on the movable end of the telescopic rod, a spring sleeved on the side surface of the telescopic rod, a slot formed on the side surface of the cutter body for the insert block to be inserted, a base plate slidably installed on the side surface of the fixed cylinder, an inclined block and a connecting rod fixedly installed on the top of the base plate, a control ring slidably installed on the side surface of the mounting cylinder, and a groove formed on the side surface of the mounting cylinder for the connecting rod to slide.

[0010] As a preferred technical solution of this application, one end of the spring is fixedly connected to one side of the connecting block, the other end of the spring is fixedly connected to one side of the insert block, the insert block passes through the fixed cylinder, the inclined surface of the inclined block is in contact with the inclined surface of the insert block, and the control ring is fixedly connected to the base plate through the connecting rod.

[0011] As a preferred technical solution of this application, the operating table has an adjustment groove inside, a first limiting rod is fixedly connected inside the adjustment groove, and a first threaded rod is rotatably connected inside the adjustment groove.

[0012] As a preferred technical solution of this application, an adjustment frame is slidably connected inside the adjustment groove, and the first limiting rod and the first threaded rod both pass through the adjustment frame. The adjustment frame has a threaded hole inside that matches the first threaded rod.

[0013] As a preferred technical solution of this application, a second limiting rod is fixedly connected inside the adjusting frame, and a second threaded rod is rotatably connected inside the adjusting frame. Both the second limiting rod and the second threaded rod pass through the movable frame, and a threaded hole adapted to the second threaded rod is opened inside the movable frame.

[0014] As a preferred technical solution of this application, a third limiting rod is fixedly connected inside the movable frame, and a third threaded rod is rotatably connected inside the movable frame. Both the third limiting rod and the third threaded rod pass through the lifting plate, and a threaded hole adapted to the third threaded rod is opened inside the lifting plate.

[0015] (III) Beneficial Effects

[0016] This utility model has a simple structure and is easy to use. With the setting of the loading and unloading mechanism, when the tool body needs to be replaced, the control ring is manually pushed upward, which eventually causes the inclined block to squeeze the insert block and move it towards the inside of the fixed cylinder. When the insert block is completely disengaged from the slot, the tool body can be replaced. When installing the new tool body, it is directly inserted into the fixed cylinder. The top first contacts the inclined surface of the top of the insert block, and then the two insert blocks are squeezed outward. When the insert block and the slot reach the same horizontal line, the spring releases its elastic force and pushes the insert block to re-insert into the slot on the side surface of the new tool body. The whole process takes less time, is easy to operate, and significantly improves the replacement efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of a quick tool changer for CNC machine tools. Figure 1 ;

[0018] Figure 2 A schematic diagram of a quick tool changer for CNC machine tools. Figure 2 ;

[0019] Figure 3 This is a cross-sectional schematic diagram of the mounting cylinder in a quick tool changer for CNC machine tools;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the installation of the control loop in a quick tool changer for CNC machine tools.

[0022] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0023] In the picture:

[0024] 1. Operating table; 2. Moving frame; 3. Lifting plate; 4. Mounting cylinder; 5. Tool body; 6. Fixed cylinder; 7. Telescopic rod; 8. Insert block; 9. Spring; 10. Base plate; 11. Inclined block; 12. Connecting rod; 13. Control ring; 14. Slide groove; 15. Adjustment groove; 16. First limit rod; 17. First threaded rod; 18. Adjustment frame; 19. Second limit rod; 20. Second threaded rod; 21. Third limit rod; 22. Third threaded rod. Detailed Implementation

[0025] 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.

[0026] This utility model provides a quick tool changing device for CNC machine tools, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the CNC machine tool quick-change device includes an operating table 1, a movable frame 2 disposed above the operating table 1, a lifting plate 3 disposed inside the movable frame 2, a mounting cylinder 4 fixedly installed inside the lifting plate 3, a fixed cylinder 6 fixedly installed inside the mounting cylinder 4, a tool body 5 slidably installed inside the fixed cylinder 6, and a loading and unloading mechanism disposed inside the mounting cylinder 4 for quick-change of the tool body 5.

[0027] The loading and unloading mechanism includes a telescopic rod 7 fixedly installed on the inner wall of the mounting cylinder 4 via a connecting block, an insert block 8 fixedly installed on the movable end of the telescopic rod 7, a spring 9 sleeved on the side surface of the telescopic rod 7, a slot opened on the side surface of the tool body 5 for the insert block 8 to be inserted, a base plate 10 slidably installed on the side surface of the fixed cylinder 6, an inclined block 11 and a connecting rod 12 fixedly installed on the top of the base plate 10, a control ring 13 slidably installed on the side surface of the mounting cylinder 4, and a slide groove 14 opened on the side surface of the mounting cylinder 4 for the connecting rod 12 to slide.

[0028] One end of the spring 9 is fixedly connected to one side of the connecting block, and the other end of the spring 9 is fixedly connected to one side of the insert block 8. The insert block 8 passes through the fixed cylinder 6. The inclined surface of the inclined block 11 fits against the inclined surface of the insert block 8. The control ring 13 is fixedly connected to the base plate 10 through the connecting rod 12.

[0029] When using this CNC machine tool quick-change device, first place the operating table 1 in a suitable position, then move the moving frame 2, which moves the lifting plate 3 and the mounting cylinder 4 inside the lifting plate 3 until the tool body 5 is moved to the designated position. Then, the lifting plate 3 begins to descend, which moves the mounting cylinder 4 down until the tool body 5 contacts the workpiece to be processed, and then the workpiece is processed. When it is necessary to change the tool body 5, manually push the control ring 13 upward to slide it on the side surface of the mounting cylinder 4. The control ring 13 moves the base plate 10 through the connecting rod 12, and the base plate 10 moves the inclined block 11. Since the inclined surface of the inclined block 11 is in contact with the inclined surface of the insert block 8, the inclined block 11 will move against the insert block 8 during the movement. The insert 8 is pressed, causing it to move outward into the fixed cylinder 6. At the same time, the telescopic rod 7 retracts, and the spring 9 is compressed and deformed. When the insert 8 is completely disengaged from the slot, the tool body 5 can be replaced. After replacement, the control ring 13 is released, and the spring 9 releases its elasticity to push the insert 8 back to its original position. When a new tool body 5 needs to be installed, the new tool body 5 is directly inserted into the fixed cylinder 6. The top of the tool body 5 first contacts the top inclined surface of the insert 8, thus pressing the two insert 8 outward. When the insert 8 and the slot are at the same horizontal level, the spring 9 releases its elasticity to push the insert 8 back into the slot on the side surface of the new tool body 5, completing the quick replacement of the tool body 5.

[0030] Furthermore, in order to adjust the position of the movable frame 2, such as Figure 1 , Figure 2 and Figure 3 As shown, the operating table 1 has an adjustment groove 15 inside, a first limiting rod 16 is fixedly connected inside the adjustment groove 15, and a first threaded rod 17 is rotatably connected inside the adjustment groove 15.

[0031] An adjustment frame 18 is slidably connected inside the adjustment groove 15. The first limiting rod 16 and the first threaded rod 17 both pass through the adjustment frame 18. The adjustment frame 18 has a threaded hole inside that matches the first threaded rod 17.

[0032] The adjustment frame 18 is fixedly connected to a second limiting rod 19, and the adjustment frame 18 is rotatably connected to a second threaded rod 20. Both the second limiting rod 19 and the second threaded rod 20 pass through the movable frame 2, and the movable frame 2 has a threaded hole that matches the second threaded rod 20.

[0033] When using this CNC machine tool quick-change device, the operator can start the external motor to drive the first threaded rod 17 to rotate. During rotation, the first threaded rod 17 will engage with the threaded hole inside the adjusting frame 18, thereby causing the adjusting frame 18 to slide inside the adjusting groove 15. At the same time, the first limit rod 16 will limit the adjusting frame 18 to prevent it from rotating during sliding, thus allowing the position of the adjusting frame 18 to be adjusted. After the position of the adjusting frame 18 is adjusted, the operator can start the external motor to drive the second threaded rod 20 to rotate. During rotation, the second threaded rod 20 will engage with the threaded hole inside the moving frame 2, thereby causing the moving frame 2 to move. At the same time, the second limit rod 19 will limit the moving frame 2 to prevent it from rotating during movement, thus allowing the position of the moving frame 2 to be adjusted. By adjusting the position of the moving frame 2, the machining position of the tool body 5 can be adjusted, improving the practicality of the CNC machine tool quick-change device.

[0034] Furthermore, to facilitate the control of the lifting and lowering of the tool body 5, such as... Figure 1 , Figure 2 and Figure 3 As shown, a third limiting rod 21 is fixedly connected inside the movable frame 2, and a third threaded rod 22 is rotatably connected inside the movable frame 2. Both the third limiting rod 21 and the third threaded rod 22 pass through the lifting plate 3, and the lifting plate 3 has a threaded hole that matches the third threaded rod 22 inside.

[0035] When using this CNC machine tool quick-change device, the operator can start the external motor to drive the third threaded rod 22 to rotate. Since the third threaded rod 22 is compatible with the threaded hole inside the lifting plate 3, the third threaded rod 22 will drive the lifting plate 3 to rise and fall during rotation. At the same time, the third limit rod 21 will limit the lifting plate 3 to prevent it from shifting during the rising and falling process, thus allowing the position of the lifting plate 3 to be adjusted. By adjusting the position of the lifting plate 3, the height of the tool body 5 can be controlled, making it easier for the operator to control the height of the tool body 5 during use, improving the flexibility and ease of operation of the CNC machine tool quick-change device.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-change tool device for CNC machine tools, characterized in that: The CNC machine tool quick-change device includes an operating table (1), a movable frame (2) set above the operating table (1), a lifting plate (3) set inside the movable frame (2), a mounting cylinder (4) fixedly installed inside the lifting plate (3), a fixed cylinder (6) fixedly installed inside the mounting cylinder (4), a tool body (5) slidably installed inside the fixed cylinder (6), and a loading and unloading mechanism set inside the mounting cylinder (4) for quickly changing the tool body (5). The loading and unloading mechanism includes a telescopic rod (7) fixedly installed on the inner wall of the mounting cylinder (4) via a connecting block, an insert (8) fixedly installed on the movable end of the telescopic rod (7), a spring (9) sleeved on the side surface of the telescopic rod (7), a slot opened on the side surface of the tool body (5) for the insert (8) to be inserted, a base plate (10) slidably installed on the side surface of the fixed cylinder (6), an inclined block (11) and a connecting rod (12) fixedly installed on the top of the base plate (10), a control ring (13) slidably installed on the side surface of the mounting cylinder (4), and a groove (14) opened on the side surface of the mounting cylinder (4) for the connecting rod (12) to slide.

2. The quick-change tool device for CNC machine tools according to claim 1, characterized in that: One end of the spring (9) is fixedly connected to one side of the connecting block, and the other end of the spring (9) is fixedly connected to one side of the insert block (8). The insert block (8) passes through the fixed cylinder (6). The inclined surface of the inclined block (11) is in contact with the inclined surface of the insert block (8). The control ring (13) and the base plate (10) are fixedly connected through the connecting rod (12).

3. The quick-change tool device for CNC machine tools according to claim 1, characterized in that: The operating table (1) has an adjustment groove (15) inside, a first limiting rod (16) is fixedly connected inside the adjustment groove (15), and a first threaded rod (17) is rotatably connected inside the adjustment groove (15).

4. The quick-change tool device for CNC machine tools according to claim 3, characterized in that: An adjustment frame (18) is slidably connected inside the adjustment groove (15). The first limiting rod (16) and the first threaded rod (17) both pass through the adjustment frame (18). The adjustment frame (18) has a threaded hole inside that matches the first threaded rod (17).

5. A quick-change tool device for CNC machine tools according to claim 4, characterized in that: The adjustment frame (18) is fixedly connected to a second limiting rod (19), and the adjustment frame (18) is rotatably connected to a second threaded rod (20). The second limiting rod (19) and the second threaded rod (20) both pass through the movable frame (2). The movable frame (2) has a threaded hole that matches the second threaded rod (20).

6. A quick-change tool device for CNC machine tools according to claim 5, characterized in that: The movable frame (2) is fixedly connected to a third limiting rod (21) inside, and the movable frame (2) is rotatably connected to a third threaded rod (22) inside. Both the third limiting rod (21) and the third threaded rod (22) pass through the lifting plate (3). The lifting plate (3) has a threaded hole that matches the third threaded rod (22) inside.

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