Surrounding type tool changing device and vertical machine tool

Abstract

The invention relates to the technical field of tool magazines, and discloses a surrounding type tool changing device and a vertical machine tool, the surrounding type tool changing device comprises a tool magazine and a tool changing assembly, the tool magazine is cylindrical, a lifting guide rail is arranged on one side of the tool magazine, a lifting support arm is installed on the tool magazine through the lifting guide rail, the end portion of the lifting support arm is connected with a vertically-arranged supporting rod, and the supporting rod is connected with the tool changing assembly. A plurality of cutterheads are installed outside the supporting rod and used for assembling tool bits, a traditional ultra-large tool magazine is divided into cutterheads bearing a plurality of small tool magazines, the cutterheads are stacked in the vertical direction, and the cutterhead where a needed tool containing cylinder is located is conveyed to one side of the vertical machine tool body through the lifting guide rail and rotated to the position below a machine head. According to the mode, the occupied area of the tool magazine can be reduced, rapid positioning can be achieved according to the tools needing to be replaced, and compared with an ultra-large tool magazine for positioning the tools, positioning is more accurate and efficiency is higher when the two sets of tool containing cylinders with the long distance are switched.

Description

Technical Field

[0001] The invention relates to the technical field of tool magazines, in particular to a surrounding tool changing device and a vertical machine tool. Background Art

[0002] A circular tool changer, also known as a ring tool magazine, is a common tool changing system in CNC machine tools (CNC). This device is usually located on the side or top of the machine tool and consists of one or more layers of rings, each of which can be equipped with multiple tools.

[0003] At present, some special CNC machine tools need to be equipped with super-large ring tool magazines. Since such ring tool magazines have a large number of tools and occupy a large area, tool switching and positioning take longer time, and the positioning accuracy is reduced. The identification, tracking and sorting of tools become complicated, and the tool changing efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to provide a surrounding tool changing device and a vertical machine tool, aiming to solve the problems of the existing super-large annular tool magazine, such as large occupied area, long tool switching and positioning time, low precision and tool changing efficiency.

[0005] The present invention is implemented as follows: a wraparound tool changing device comprises a tool magazine and a tool changing assembly, wherein the tool magazine is arranged in a cylindrical shape, a lifting guide rail is arranged on one side of the tool magazine, a lifting support arm is installed on the tool magazine through the lifting guide rail, a vertical support rod is connected to the end of the lifting support arm, a plurality of tool discs are installed on the outside of the support rod, the plurality of tool discs are used to assemble tool heads, and the tool discs are rotated along the support rod to the outside of the tool magazine to cooperate with the tool changing assembly to complete the tool changing operation; A turntable is rotatably mounted on the cutter disc, and a plurality of cutter cylinders are connected to the turntable via a spring shaft. An electromagnetic component for resetting the turntable is mounted inside the cutter disc. A leveling telescopic machine for pushing the cutter cylinder and a tool changing motor for tool changing operations are also mounted on the tool changing assembly. The leveling telescopic machine is rotatably mounted, and the output shaft of the tool changing motor is telescopically mounted, and a cutter arm for tool changing operations is sleeved thereon.

[0006] Preferably, a connecting plate is installed on one side of the plurality of cutter discs, a sleeve is fixed to the bottom of the connecting plate, and the sleeve bearing is connected to the outside of the support rod.

[0007] Preferably, a switching motor is installed on one side of the tool magazine, the output shaft of the switching motor is sleeved with a first driving gear, and the outside of the sleeve is sleeved with a transmission gear meshing with the first driving gear.

[0008] Preferably, an annular reset rod is provided inside the cutter disc, the electromagnetic component is used to drive the annular reset rod to rotate, and the end of the annular reset rod is connected to the inner wall of the turntable through a connecting block.

[0009] Preferably, the tool changing assembly is provided with a limit rod below the rotation direction of the tool disc, a conductive contact piece is provided on one side of the limit rod, a contact piece corresponding to the conductive contact piece is provided on one side of the connecting piece, and the contact piece contacts the conductive contact piece to power the electromagnetic component.

[0010] Preferably, a limit plate is provided at the bottom of the cutter disc, the cross section of the limit plate is L-shaped, and the vertical portion of the limit plate extends to the inner wall of the turntable, and a cutter changing port is provided on the limit plate.

[0011] Preferably, a positioning motor is installed on one side of the tool changing assembly, the output shaft of the positioning motor is sleeved with a second driving gear, and a tooth groove meshing with the second driving gear is formed on the outside of the turntable.

[0012] Preferably, the telescopic part of the leveling telescopic machine is connected to a push roller, the end shaft of the push roller is connected to a guide roller, and the guide roller is used to act on the surface of the knife cylinder.

[0013] A vertical machine tool comprises a vertical machine tool body. A machine head is arranged on the vertical machine tool body. The machine head changes tools through a surrounding tool changing device.

[0014] The invention discloses a surrounding tool changing device and a vertical machine tool, which have the following beneficial effects: 1. The present invention discloses a surrounding tool changing device, which divides a traditional super-large tool magazine into a tool disc carrying a plurality of small tool magazines, and stacks the plurality of tool discs in a vertical direction, and delivers the tool disc where the required tool cylinder is located to one side of the vertical machine tool body through a lifting guide rail and rotates it under the machine head, and then rotates the tool cylinder on the tool disc to the tool changing position. This method can not only reduce the footprint of the tool magazine, but also can quickly locate the tool to be replaced. Compared with positioning the tool in a super-large tool magazine, when switching between two sets of tool cylinders at a long distance, the positioning is more accurate and the efficiency is higher; 2. The present application also discloses a tool disc for carrying a plurality of tool cylinders. The tool disc uses a limit plate with a tool changing opening to limit the tool cylinder to prevent other tool cylinder activities from affecting the positioning accuracy during the tool changing process. At the same time, when the tool disc rotates to one side of the vertical machine tool body, the tool cylinder on the turntable can be reset by an electromagnetic component, and then the turntable is driven to rotate by a positioning motor to rotate the tool cylinder to the tool changing opening, which makes the identification, tracking and sorting of tools faster and the tool changing efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a wraparound tool changing device and a vertical machine tool provided by an embodiment of the present invention; Figure 2It is a schematic diagram of a wraparound tool changing device and a tool magazine and tool changing assembly of a vertical machine tool provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the internal structure of a wraparound tool changing device and a tool magazine of a vertical machine tool provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the rear structure of a wraparound tool changing device and a tool disc and a tool changing assembly of a vertical machine tool provided by an embodiment of the present invention; Figure 5 The present invention is a schematic diagram of a partial upward view of a tool disc of a surround-type tool changing device and a vertical machine tool provided by an embodiment of the present invention.

[0016] Marking Description: 1. Tool magazine; 2. Tool changing assembly; 3. Tool tray; 4. Vertical machine tool body; 41. Machine head; 11. Lifting guide rail; 12. Lifting arm; 13. Support rod; 14. Connecting piece; 15. Switching motor; 141, sleeve; 142, transmission gear; 143, electric contact plate; 151, first driving gear; 21. Knife arm; 22. Knife changing motor; 23. Positioning motor; 24. Leveling telescopic machine; 25. Limit rod; 26. Conductive contact piece; 231, second driving gear; 241, push roller; 31. Rotating plate; 32. Limiting plate; 33. Knife cylinder; 34. Electromagnetic component; 35. Annular reset rod; 311, tooth groove; 321, knife edge; 351, connecting block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] In this embodiment: Reference Figure 1 As shown, a preferred embodiment of the present invention is provided.

[0021] The wraparound tool changing device of this embodiment includes a tool magazine 1 and a tool changing assembly 2. The tool magazine 1 is cylindrically arranged. A lifting guide rail 11 is arranged on one side of the tool magazine 1. A lifting support arm 12 is installed on the tool magazine 1 through the lifting guide rail 11. A vertical support rod 13 is connected to the end of the lifting support arm 12. A plurality of tool discs 3 are installed outside the support rod 13. The plurality of tool discs 3 are used to assemble tool heads. The tool discs 3 rotate along the support rod 13 to the outside of the tool magazine 1 to cooperate with the tool changing assembly 2 to complete the tool changing operation. A turntable 31 is rotatably mounted on the cutter disc 3, and a plurality of cutter cylinders 33 are connected to the turntable 31 via a spring shaft. An electromagnetic component 34 for resetting the turntable 31 is mounted inside the cutter disc 3. A leveling telescopic machine 24 for pushing the cutter cylinder 33 and a tool changing motor 22 for tool changing operations are also mounted on the tool changing assembly 2. The leveling telescopic machine 24 is rotatably mounted, and the output shaft of the tool changing motor 22 is telescopically mounted, and a cutter arm 21 for tool changing operations is sleeved thereon.

[0022] See attached Figure 2-3 As shown, a connecting piece 14 is installed on one side of the several cutter discs 3, a sleeve 141 is fixed to the bottom of the connecting piece 14, the sleeve 141 is bearing-connected to the outside of the support rod 13, and the cutter disc 3 rotates along the outside of the support rod 13 through the sleeve 141, wherein a switching motor 15 is installed on one side of the tool magazine 1, the output shaft of the switching motor 15 is sleeved with a first driving gear 151, and the outside of the sleeve 141 is sleeved with a transmission gear 142 meshing with the first driving gear 151.

[0023] For further information, see Attachment Figure 5As shown, an annular reset rod 35 is arranged inside the cutter disc 3, and the electromagnetic member 34 is used to drive the annular reset rod 35 to rotate, and the end of the annular reset rod 35 is connected to the inner wall of the rotating disc 31 through a connecting block 351, and the tool changing assembly 2 is provided with a limit rod 25 below the rotation direction of the cutter disc 3, and a conductive contact piece 26 is arranged on one side of the limit rod 25, and a contact piece 143 corresponding to the conductive contact piece 26 is arranged on one side of the connecting piece 14, and the contact piece 143 contacts the conductive contact piece 26 for the electromagnetic member 34 is powered. When the cutter disc 3 is driven by the switching motor 15 to turn the vertical machine tool body 4, the connecting piece 14 will first conflict with the limit rod 25 to prevent the cutter disc 3 from rotating excessively and affecting the tool changing accuracy. During this process, the conductive contact piece 26 will conflict with the electric contact piece 143, thereby supplying power to the electromagnetic component 34. The electromagnetic component 34 is energized to generate electromagnetic force to attract the annular reset rod 35, so that the annular reset rod 35 pulls the turntable 31 to rotate inside the cutter disc 3 through the connecting block 351, thereby completing the reset of the knife cylinder 33 on the cutter disc 3 and improving the accuracy of tool changing.

[0024] A limiting disk 32 is provided at the bottom of the knife disc 3. The cross section of the limiting disk 32 is L-shaped, and the vertical portion of the limiting disk 32 extends to the inner wall of the rotating disk 31. A knife changing port 321 is provided on the limiting disk 32. Under the shielding effect of the vertical portion of the limiting disk 32, the knife barrel 33 on the rotating disk 31 cannot be rotated by the spring shaft. A positioning motor 23 is installed on one side of the knife changing assembly 2. The output shaft of the positioning motor 23 is sleeved with a second driving gear 231. A tooth groove 311 meshing with the second driving gear 231 is provided on the outside of the rotating disk 31. When the knife barrel 33 that needs to be changed is driven by the positioning motor 23 to rotate to the knife changing port 321, the knife is changed through the knife changing assembly 2, thereby improving the accuracy of the knife change and reducing the knife collision. In the attached Figure 3-4 In the embodiment, the telescopic part of the leveling telescopic machine 24 is connected with a push roller 241, and the end rotating shaft of the push roller 241 is connected with a guide roller, and the guide roller is used to act on the surface of the knife-setting cylinder 33. When the knife-setting cylinder 33 for tool change is rotated to the knife-changing port 321, the telescopic part of the leveling telescopic machine 24 will be pushed out, and then the push roller 241 is used to push the knife-setting cylinder 33 to rotate along its spring shaft connection part, so that the knife-setting cylinder 33 is horizontally arranged, which is convenient for tool change operation through the knife arm 21 and the machine head 41 in a horizontal state; The present embodiment also includes a vertical machine tool, including a vertical machine tool body 4, on which a machine head 41 is arranged. The machine head 41 can be placed horizontally, and the machine head 41 performs a tool changing operation through the aforementioned surrounding tool changing device.

[0025] The present invention discloses a surrounding tool changing device, which divides a traditional super-large tool magazine (100-200 knives) into a tool disc 3 carrying a plurality of small tool magazines (10-25 knives), and stacks the plurality of tool discs 3 in a vertical direction, and delivers the tool disc 3 where the required tool cylinder 33 is located to one side of the vertical machine tool body 4 through a lifting guide rail 11 and rotates it under the machine head 41, and then rotates the tool cylinder 33 on the tool disc 3 to the tool changing position. This method can not only reduce the floor space of the tool magazine 1, but also can quickly locate the tool to be replaced. Compared with positioning the tool in a super-large tool magazine, when switching between two sets of tool cylinders 33 at a longer distance, the positioning is more accurate and the efficiency is higher. The present application also discloses a tool disc 3 for carrying a plurality of tool cylinders 33. The tool disc 3 is used to limit the tool cylinder 33 by a limiting disc 32 with a tool changing port 321, so as to prevent the activities of other tool cylinders 33 from affecting the positioning accuracy during the tool changing process. Meanwhile, when the tool disc 3 is rotated to one side of the vertical machine tool body 4, the tool cylinder 33 on the turntable 31 can be reset by an electromagnetic component 34, and then the positioning motor 23 is used to drive the turntable 31 to rotate, so as to rotate the tool cylinder 33 to the tool changing port 321, so that the identification, tracking and sorting of tools are faster and the tool changing efficiency is higher.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wraparound tool changing device, comprising a tool magazine and a tool changing assembly, characterized in that: The tool magazine is cylindrically arranged, and a lifting guide rail is arranged on one side of the tool magazine. A lifting support arm is installed on the tool magazine through the lifting guide rail. A vertical support rod is connected to the end of the lifting support arm. A plurality of tool discs are installed outside the support rod. The tool discs are used to assemble tool heads, and the tool discs rotate along the support rod to the outside of the tool magazine to cooperate with the tool changing assembly to complete the tool changing operation. A turntable is rotatably mounted on the cutter disc, and a plurality of cutter cylinders are connected to the turntable via a spring shaft. An electromagnetic component for resetting the turntable is mounted inside the cutter disc. A leveling telescopic machine for pushing the cutter cylinder and a tool changing motor for tool changing operations are also mounted on the tool changing assembly. The leveling telescopic machine is rotatably mounted, and the output shaft of the tool changing motor is telescopically mounted, and a cutter arm for tool changing operations is sleeved thereon.

2. A wraparound tool changing device as claimed in claim 1, characterized in that: A connecting piece is installed on one side of the plurality of cutter discs, a sleeve is fixed on the bottom of the connecting piece, and the sleeve bearing is connected to the outside of the support rod.

3. A wraparound tool changing device as claimed in claim 2, characterized in that: A switching motor is installed on one side of the tool magazine, the output shaft of the switching motor is sleeved with a first driving gear, and the outer portion of the sleeve is sleeved with a transmission gear meshing with the first driving gear.

4. A wraparound tool changing device as claimed in claim 2, characterized in that: An annular reset rod is arranged inside the cutter disc, the electromagnetic component is used to drive the annular reset rod to rotate, and the end of the annular reset rod is connected to the inner wall of the rotating disc through a connecting block.

5. A wraparound tool changing device as claimed in claim 4, characterized in that: The tool changing assembly is provided with a limit rod below the rotation direction of the tool disc, a conductive contact piece is provided on one side of the limit rod, a contact piece corresponding to the conductive contact piece is provided on one side of the connecting piece, and the contact piece contacts the conductive contact piece to supply power to the electromagnetic component.

6. A wraparound tool changing device as claimed in claim 1, characterized in that: A limiting disk is arranged at the bottom of the cutter disc, the cross section of the limiting disk is arranged in an L shape, and the vertical portion of the limiting disk extends to the inner wall of the rotating disc, and a cutter changing port is opened on the limiting disk.

7. A wraparound tool changing device as claimed in claim 6, characterized in that: A positioning motor is installed on one side of the tool changing assembly, the output shaft of the positioning motor is sleeved with a second driving gear, and a tooth groove meshing with the second driving gear is formed on the outside of the rotating disk.

8. A wraparound tool changing device as claimed in claim 1, characterized in that: The telescopic part of the leveling telescopic machine is connected with a push roller, and the end rotating shaft of the push roller is connected with a guide roller, and the guide roller is used to act on the surface of the knife cylinder.

9. A vertical machine tool, comprising a vertical machine tool body, on which a machine head is arranged, characterized in that: The machine head changes tools by means of a surrounding tool changing device as described in any one of claims 1-8.

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