Machining center facilitating tool changing

Abstract

The machining center comprises a machining center body and a tool changing device, a tool box with an inner cavity is arranged on the machining center body, a tool outlet is formed in the tool box, the tool changing device comprises a tool apron, a plurality of tool handles, a first driving part and a driving assembly, and the tool apron is rotationally connected into the inner cavity in the vertical direction; the first driving part is used for driving the tool apron to rotate, the multiple tool handles are slidably connected to the tool apron in the vertical direction, the driving assembly is used for driving the multiple tool handles to slide, the tool handle right facing the tool outlet is made to be a working tool handle, and when the driving assembly drives the working tool handle to slide towards the side away from the inner cavity to the working position, the working tool handle is driven to work. And the working knife handle penetrates through the knife outlet to the outside. The inner cavity is arranged on the tool holder, the plurality of tool holders are respectively positioned in the inner cavity, and when the required tool is used, the required tool holder is rotated to the position of the tool outlet, so that the tool which is not used is positioned in the inner cavity, and the possibility that the tool at a non-working part scratches a workpiece is reduced while the tool is conveniently replaced in the machining process.

Description

Technical Field

[0001] The utility model relates to the field of tool replacement in a machining center, in particular to a machining center which is convenient for tool replacement. Background Art

[0002] The machining center has the ability to automatically exchange machining tools. By installing tools for different purposes on the tool magazine, after the workpiece is clamped once on the machining center, the digital control system can control the machine tool according to different processes, automatically select and replace tools, automatically change the machine tool spindle speed, feed rate, and the movement trajectory of the tool relative to the workpiece and other auxiliary functions, and complete multiple processes of workpiece processing in sequence.

[0003] The utility model with publication number CN219649315U discloses a machining center tool holder for quickly replacing cutting tools, including a machining center body, a motor is arranged on the outside of the machining center body, and the output end of the motor is connected to an output shaft, and a cutter disc is arranged below the output shaft, the outside of the cutter disc is connected to a cylinder, and the outside of the cylinder is connected to an outer shell, and a power mechanism is arranged inside the outer shell, the outside of the power mechanism is connected to a cutter head, and the inside of the cutter head is provided with a steering mechanism and a mounting mechanism.

[0004] In the machining center in the above technical solution, multiple cutting tools are exposed to the outside at the same time. When the workpiece moves during operation, the cutting tools in non-working positions are likely to scratch the workpiece, causing the workpiece to be scrapped. Utility Model Content

[0005] In order to reduce the possibility of a tool in a non-working position scratching a workpiece, the present application provides a machining center that is easy to change tools.

[0006] The present application provides a machining center that facilitates tool change and adopts the following technical solution:

[0007] A machining center that is convenient for tool changing, comprises a machining center body and a tool changing device, wherein a tool box with an inner cavity is slidably connected to the machining center body in a vertical direction, and a tool outlet connecting the inner cavity and the outside is opened on the tool box, and the tool changing device comprises a tool holder, a plurality of tool handles for clamping the tool, a first driving member and a driving assembly, the tool holder is rotatably connected in the inner cavity in a vertical direction, the first driving member is used to drive the rotation of the tool holder, and the plurality of tool handles are slidably connected to the tool holder in a vertical direction, and the driving assembly is used to drive the plurality of tool handles to slide respectively, so that the tool handle located opposite the tool outlet is a working tool handle, and when the driving assembly drives the working tool handle to slide to a working position toward a side away from the inner cavity, the working tool handle passes through the tool outlet to the outside.

[0008] By adopting the above technical solution, multiple tool holders are respectively located in the inner cavity. When the required tool is used, the tool holder is driven by the first driving member to rotate the required tool holder to the position of the cutting edge. The tool holder is then driven by the driving assembly to penetrate the cutting edge and extend to the outside to work. The unnecessary tools are located in the inner cavity, which makes it easy to change tools during the processing and reduces the possibility of the tool in the non-working position scratching the workpiece.

[0009] Preferably, the plurality of tool handles are evenly distributed around the central axis of the tool holder, and the working tool handle is coaxial with the central axis of the cutting edge.

[0010] By adopting the above technical solution, the X-axis and Y-axis of multiple tool holders are the same when they are in the working position, and there is no need to re-align the X-axis and Y-axis of the tool after replacing the tool head, thereby improving work efficiency.

[0011] Preferably, a second driving member is further included, and the plurality of tool handles are respectively connected to the tool seat in a vertical direction for rotation, and the plurality of tool handles are respectively provided with key blocks. A rotating disk is connected to the inner cavity in a vertical direction for rotation, and the rotating disk is provided with a through hole for the tool handle to pass through, and the through hole is provided with a key slot that can cooperate with the key block. The second driving member is used to drive the rotation of the rotating disk, and when the driving assembly drives the working tool handle to slide toward the side away from the inner cavity to the working position, the key slot cooperates with the key block.

[0012] By adopting the above technical solution, the second driving member drives the rotating disk to rotate, and the working tool handle is limited on the rotating disk through the cooperation between the key block and the key slot, so that the working tool handle rotates with the rotating disk; and the possibility of the tool handle in the working position being out of coaxiality with the central axis of the cutting edge is reduced.

[0013] Preferably, there are a plurality of key blocks, and the plurality of key blocks are evenly distributed on the circumferential side surfaces of the tool handle, and the key blocks are arranged in a tapered shape from a side away from the tool to a side close to the tool.

[0014] By adopting the above technical solution, the possibility of the key block on the working tool handle and the keyway on the rotating disk not being able to cooperate with each other is reduced.

[0015] Preferably, the second driving member includes a second motor, a plurality of gear teeth are provided on the rotating disk, the plurality of gear teeth are evenly distributed along the circumferential side of the rotating disk, the second motor is fixedly connected to the tool box, one end of the output shaft of the second motor passes through the tool box to the inner cavity and is fixedly connected to a gear, and the gear is meshingly connected to the rotating disk.

[0016] By adopting the above technical solution, the second motor drives the gear to rotate, and the gear is meshed with the rotating disk to drive the rotating disk to rotate.

[0017] Preferably, the driving assembly includes a plurality of cylinders, the plurality of cylinders correspond to a plurality of tool handles, the plurality of cylinders are respectively fixedly connected to the tool box, and one end of the piston rod of the plurality of cylinders is passed through and rotatably connected to the corresponding tool handle.

[0018] By adopting the above technical solution, the piston movement of the piston rods of multiple cylinders can drive the corresponding tool handles to be slidably connected to the tool seat, so that the piston rods of the cylinders are rotationally connected to the tool handles, reducing the possibility of the cylinder interfering with the rotation of the tool handle.

[0019] Preferably, a controller is further included, and a jet head and an oil spray head are respectively provided at the cutting edge, a lubricating oil tank is provided on the main body of the machining center, the lubricating oil tank is connected to the oil spray head pipeline, and the jet head is connected to the air source pipeline. When the driving assembly drives the working tool handle to slide toward one side of the inner cavity, the controller respectively controls the jet head and the oil spray head to spray compressed gas and lubricating oil to the tool on the working tool handle.

[0020] By adopting the above technical solution, the controller controls the air jet head and the oil spray head to spray compressed gas and lubricating oil on the tool on the working tool handle, the waste chips on the tool after work are removed by high-pressure gas, and the possibility of rusting of the tool when it is in the inner cavity is reduced by spraying lubricating oil.

[0021] The technical effects of this utility model are mainly reflected in the following aspects:

[0022] 1. The utility model provides a tool box with an inner cavity so that a plurality of tool handles are respectively located in the inner cavity. When a required tool is used, the tool holder is driven by a driving member to rotate the required tool handle to the position of the knife outlet, and then the tool handle is driven by a driving assembly to pass through the knife outlet and extend to the outside to work, so that the unnecessary tools are in the inner cavity, which is convenient for tool changing during the processing process and reduces the possibility of the tool in the non-working position scratching the workpiece;

[0023] 2. The utility model sets a rotating disk, and the second driving member drives the rotating disk to rotate. The working handle is limited on the rotating disk through the cooperation between the key block and the key slot, so that the working handle rotates with the rotating disk; and the possibility of the handle in the working position being out of alignment with the central axis of the knife outlet is reduced;

[0024] 3. The utility model provides an air jet head and an oil spray head, and controls the air jet head and the oil spray head through a controller to spray compressed gas and lubricating oil to the tool on the working tool handle, removes waste chips on the tool after work through high-pressure gas, and reduces the possibility of rusting of the tool when it is in the inner cavity by spraying lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the inner cavity structure of an embodiment of the present application.

[0027] Figure 3 is along Figure 2 Enlarged view of point A in the middle.

[0028] Explanation of the reference numerals: 1. machining center body; 12. tool box; 121. inner cavity; 122. rotating disk; 123. gear teeth; 124. perforation; 125. keyway; 126. knife edge; 127. jet nozzle; 128. oil spray nozzle; 129. controller; 2. tool changing device; 21. tool holder; 22. tool handle; 221. tool; 222. key block; 23. first driving member; 231. first motor; 232. synchronous belt; 233. first synchronous wheel; 234. second synchronous wheel; 24. driving assembly; 241. cylinder; 3. second driving member; 31. second motor; 32. gear; 4. driving device; 41. slide plate; 42. lead screw; 43. third motor; 44. slide rail. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0030] The embodiment of the present application discloses a machining center that is convenient for tool changing.

[0031] Reference Figure 1-Figure 3 A machining center that is convenient for tool change in this embodiment includes a machining center body 1 and a tool changer 2. A tool box 12 with an inner cavity 121 is slidably connected to the machining center body 1 in the vertical direction. The tool 221 is provided with a knife outlet 126 that connects the inner cavity 121 with the outside. The tool changer 2 includes a tool holder 21, a plurality of tool handles 22 for clamping the tool 221, a first driving member 23 and a driving assembly 24. The tool holder 21 is rotatably connected in the inner cavity 121 in the vertical direction. The first driving member 23 is used to drive the rotation of the tool holder 21. The plurality of tool handles 22 are respectively slidably connected to the tool holder 21 in the vertical direction. The plurality of tool handles 22 are evenly distributed around the central axis of the tool holder 21. The working tool handle 22 is coaxial with the central axis of the knife outlet 126. The X-axis and Y-axis of the plurality of tool handles 22 are the same when they are in the working position, and the X-axis and Y-axis of the tool 221 do not need to be re-aligned after the tool head is replaced, thereby improving the work efficiency. The driving assembly 24 is used to drive multiple handles 22 to slide separately, so that the handle 22 located opposite the knife outlet 126 is the working handle 22. When the driving assembly 24 drives the working handle 22 to slide to the side away from the inner cavity 121 to the working position, the working handle 22 passes through the knife outlet 126 to the outside.

[0032] Reference Figure 1-Figure 3, so that multiple tool handles 22 are respectively located in the inner cavity 121. When the required tool 221 is used, the tool holder 21 is driven by the first driving member 23 to rotate the required tool handle 22 to the position of the knife outlet 126, and then the driving component 24 drives the tool handle 22 to penetrate the knife outlet 126 and extend to the outside to work, so that the unnecessary tools 221 are in the inner cavity 121, which is convenient for changing tools during the processing process and reduces the possibility of the tool 221 in the non-working position scratching the workpiece.

[0033] Reference Figure 1-Figure 3 , further comprising a second driving member 3, a plurality of tool handles 22 are respectively connected to the tool holder 21 in a vertically rotatable manner, a plurality of key blocks 222 are respectively fixedly connected to the tool handles 22, a plurality of key blocks 222 are respectively evenly distributed on the circumferential side of the tool handle 22, and the key blocks 222 are arranged in a tapered shape from the side away from the tool 221 to the side close to the tool 221. The key blocks 222 guide the cooperation with the key slot 125, and reduce the possibility that the key blocks 222 on the working tool handle 22 and the key slot 125 on the rotating disk 122 cannot cooperate. A rotating disk 122 is connected to the inner cavity 121 for rotation in the vertical direction. A through hole 124 is provided on the rotating disk 122 for the handle 22 to pass through. A key slot 125 that can cooperate with the key block 222 is provided on the through hole 124. The second driving member 3 is used to drive the rotation of the rotating disk 122. When the driving assembly 24 drives the working handle 22 to slide to the working position toward the side away from the inner cavity 121, the key slot 125 cooperates with the key block 222. The second driving member 3 drives the rotating disk 122 to rotate, and through the cooperation between the key block 222 and the key slot 125, the working handle 22 is limited on the rotating disk 122, so that the working handle 22 rotates with the rotating disk 122; and the possibility of the handle 22 in the working position being not coaxial with the central axis of the knife outlet 126 is reduced.

[0034] Reference Figure 1-Figure 3 The second driving member 3 includes a second motor 31, a plurality of gear teeth 123 are fixedly connected to the rotating disk 122, and the plurality of gear teeth 123 are evenly distributed along the circumferential side of the rotating disk 122. The second motor 31 is fixedly connected to the tool box 12, and one end of the output shaft of the second motor 31 passes through the tool box 12 to the inner cavity 121 and is fixedly connected to a gear 32, and the gear 32 is meshedly connected with the rotating disk 122. The second motor 31 drives the gear 32 to rotate, and the rotating disk 122 is driven to rotate by the meshing connection between the gear 32 and the rotating disk 122.

[0035] Reference Figure 1-Figure 3The driving assembly 24 includes a plurality of cylinders 241 and a plurality of bearings. The plurality of cylinders 241 correspond to the plurality of tool handles 22 and the plurality of bearings respectively. The plurality of cylinders 241 are fixedly connected to the tool box 12 respectively. One end of the piston rod of the plurality of cylinders 241 passes through the tool box 12 to the inner cavity 121. One end of the piston rod of the plurality of cylinders 241 is fixedly connected to the inner ring of the corresponding bearing. The plurality of tool handles 22 are fixedly connected to the outer ring of the corresponding bearing respectively. Through the rotation of the inner and outer rings of the bearing, the piston rods of the plurality of cylinders 241 are respectively rotatably connected to the corresponding tool handles 22. Through the piston movement of the piston rods of the plurality of cylinders 241, the corresponding tool handles 22 are respectively driven to slide and connect to the tool seat 21, so that the piston rod of the cylinder 241 is rotatably connected to the tool handle 22, thereby reducing the possibility of the cylinder 241 interfering with the rotation of the tool handle 22.

[0036] Reference Figure 1-Figure 3 The first driving member 23 includes a first motor 231 and a synchronous belt 232. The first motor 231 is fixedly connected to the tool box 12. One end of the output shaft of the first motor 231 passes through the tool box 12 to the inner cavity 121 and is coaxially and fixedly connected with a first synchronous wheel 233. The tool holder 21 is coaxially and fixedly connected with a second synchronous wheel 234. The synchronous belt 232 is simultaneously wound around and meshed with the first synchronous wheel 233 and the second synchronous wheel 234. The first motor 231 drives the first synchronous wheel 233 to rotate. Through the meshing connection of the synchronous belt 232 with the first synchronous wheel 233 and the second synchronous wheel 234, the second synchronous wheel 234 is rotated together with the tool holder 21 to adjust and replace the tool 221 at the working position.

[0037] Reference Figure 1-Figure 3 , also includes a driving device 4, the driving device 4 is used to drive the tool box 12 to slide, the driving device 4 includes a slide plate 41, a screw 42 and a third motor 43, the tool box 12 is fixedly connected to the slide plate 41, a slide rail 44 is fixedly connected to the machining center body 1, the slide rail 44 is slidably connected to the slide rail 44 along the vertical direction, the screw 42 is rotatably connected to the machining center body 1 along the vertical direction, the screw 42 is penetrated and threadedly connected to the slide plate 41, the third motor 43 is fixedly connected to the machining center body 1, one end of the output shaft of the third motor 43 is coaxial and fixedly connected to the screw 42, the third motor 43 drives the screw 42 to rotate, through the threaded connection between the screw 42 and the slide plate 41, the slide plate 41 moves along the rotation direction of the screw 42, and the tool box 12 fixedly connected to the slide plate 41 moves together.

[0038] Reference Figure 1-Figure 3, further comprising a controller 129, a jet head 127 and an oil spray head 128 are respectively arranged at the knife exit 126, a lubricating oil tank is arranged on the machining center body 1, the lubricating oil tank is connected to the oil spray head 128 through a pipeline, and the jet head 127 is connected to the gas source pipeline. When the driving assembly 24 drives the working tool handle 22 to slide toward the inner cavity 121, the controller 129 controls the jet head 127 and the oil spray head 128 to spray compressed gas and lubricating oil to the tool 221 on the working tool handle 22. The jet head 127 and the oil spray head 128 are controlled by the controller 129 to spray compressed gas and lubricating oil to the tool 221 on the working tool handle 22, and the waste chips on the tool 221 after work are removed by high-pressure gas, and the possibility of rusting of the tool 221 when it is in the inner cavity 121 is reduced by spraying lubricating oil.

[0039] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A machining center that facilitates tool change, comprising a machining center body (1) and a tool change device (2), characterized in that: A tool box (12) with an inner cavity (121) is slidably connected to the main body (1) of the machining center in a vertical direction, and a tool outlet (126) is provided on the tool box (12) for connecting the inner cavity (121) and the outside. The tool changing device (2) comprises a tool holder (21), a plurality of tool handles (22) for clamping tools (221), a first driving member (23) and a driving assembly (24). The tool holder (21) is rotatably connected to the inner cavity (121) in a vertical direction, and the first driving member (23) is rotatably connected to the inner cavity (121). 3) used to drive the rotation of the knife seat (21), the plurality of knife handles (22) are respectively connected to the knife seat (21) in a sliding manner in a vertical direction, the driving component (24) is used to drive the plurality of knife handles (22) to slide respectively, so that the knife handle (22) located opposite to the knife outlet (126) is the working knife handle (22), and when the driving component (24) drives the working knife handle (22) to slide to the working position toward the side away from the inner cavity (121), the working knife handle (22) passes through the knife outlet (126) to the outside.

2. A machining center that facilitates tool change according to claim 1, characterized in that: The plurality of tool handles (22) are evenly distributed around the central axis of the tool seat (21), and the working tool handle (22) is coaxial with the central axis of the tool outlet (126).

3. A machining center for convenient tool change according to claim 2, characterized in that: The invention also comprises a second driving member (3), wherein a plurality of the tool handles (22) are respectively connected to the tool seat (21) for rotation in the vertical direction, a key block (222) is respectively provided on the plurality of the tool handles (22), a rotating disk (122) is connected to the inner cavity (121) for rotation in the vertical direction, a through hole (124) is provided on the rotating disk (122) for the tool handle (22) to pass through, a key slot (125) which can cooperate with the key block (222) is provided on the through hole (124), and the second driving member (3) is used to drive the rotating disk (122) to rotate, and when the driving assembly (24) drives the working tool handle (22) to slide to the working position toward the side away from the inner cavity (121), the key slot (125) cooperates with the key block (222).

4. A machining center for convenient tool change according to claim 3, characterized in that: There are a plurality of key blocks (222), and the plurality of key blocks (222) are evenly distributed on the circumferential side surface of the tool handle (22), and the key blocks (222) are arranged in a tapered shape from a side away from the tool (221) to a side close to the tool (221).

5. A machining center for convenient tool change according to claim 3, characterized in that: The second driving member (3) comprises a second motor (31); a plurality of gear teeth (123) are provided on the rotating disk (122); the plurality of gear teeth (123) are evenly distributed along the circumferential side of the rotating disk (122); the second motor (31) is fixedly connected to the tool box (12); one end of the output shaft of the second motor (31) passes through the tool box (12) to the inner cavity (121) and is fixedly connected to a gear (32); the gear (32) is meshedly connected to the rotating disk (122).

6. A machining center for convenient tool change according to claim 1, characterized in that: The driving assembly (24) comprises a plurality of cylinders (241), the plurality of cylinders (241) corresponding to a plurality of tool handles (22), the plurality of cylinders (241) being respectively fixedly connected to the tool box (12), and one end of the piston rod of the plurality of cylinders (241) being passed through and rotatably connected to the corresponding tool handle (22).

7. The machining center for convenient tool change according to claim 1, characterized in that: The invention also comprises a controller (129), wherein the knife exit (126) is provided with a jet head (127) and an oil spray head (128), and the machining center body (1) is provided with a lubricating oil tank, wherein the lubricating oil tank is connected to the oil spray head (128) through a pipeline, and the jet head (127) is connected to an air source pipeline. When the driving component (24) drives the working tool handle (22) to slide toward one side of the inner cavity (121), the controller (129) controls the jet head (127) and the oil spray head (128) to spray compressed gas and lubricating oil to the tool (221) on the working tool handle (22).

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