Numerical control tool switching device

Abstract

The utility model provides a numerical control cutter switching device which comprises a cutter head, a sealing block embedded in the outer side of the cutter head, a limiting box installed on one side of the cutter head, a motor arranged at the upper end of the cutter head, a rotating rod arranged at the output end of the motor, a rotating disc connected to one end of the rotating rod, a cutter rest movably connected to the outer side of the rotating disc, and a cutter body arranged below the cutter rest. And a hydraulic rod is arranged in the cutter head. According to the numerical control tool switching device, by arranging a limiting box, a rotating disc and other structures, the device is more convenient and faster to switch tools, meanwhile, the device is safer to replace the tools, when the tools need to be switched, a hydraulic rod is loosened, resetting is conducted through resilience force of a spring, then a motor continues to rotate, a new tool is rotated to the position of the upper end of a through hole, and the tool is replaced. The hydraulic rod is started to complete tool switching, stability and accuracy of tool switching are ensured, and when a tool needs to be replaced, the limiting box is used for surrounding the tool, so that a worker is safer when disassembling the tool.

Description

Technical Field

[0001] This utility model relates to the field of CNC tool technology, and more specifically, to a CNC tool switching device. Background Technology

[0002] In the field of modern machining, CNC technology is being applied more and more widely. CNC machine tools, with their advantages of high precision, high efficiency, and high degree of automation, have become important processing equipment in the manufacturing industry. CNC cutting tools, as key components for achieving cutting operations on CNC machine tools, directly affect machining quality and production efficiency through their performance and switching efficiency. A CNC machine tool is an automated machine tool equipped with a program. This control system can logically process programs with control codes or other symbolic instructions, represent them with coded numbers, input them through an information carrier, and after processing, issue various control signals from the CNC device to control the machine tool's movements, automatically machining parts according to the shape and dimensions required by the drawings.

[0003] During CNC machining, tool breakage and machine collisions frequently occur, easily damaging the tools. Replacing the tools requires a lot of time for disassembly and assembly, slowing down machining efficiency. Improper operation during tool replacement may cause injury to the operator. The tool may accidentally fall during installation or disassembly, or tool replacement while the machine is running may lead to machine accidents, posing certain safety hazards to the operator when changing tools.

[0004] This invention makes it safer and more convenient to change knives. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a CNC tool switching device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC tool switching device, comprising: a tool disc, a sealing block embedded on the outer side of the tool disc, a limit box installed on one side of the tool disc, a motor installed on the upper end of the tool disc, a rotating rod installed at the output end of the motor, a turntable connected to one end of the rotating rod, a tool holder movably connected to the outer side of the turntable, a tool body installed below the tool holder, and a hydraulic rod installed inside the tool disc;

[0007] A limiting groove is provided on one side of the cutter head, and a through hole is provided on the inner wall of the limiting groove. An inspection port is provided on one side of the cutter head, and a sealing block is embedded inside the inspection port. The sealing block is connected to the cutter head by bolts, and the hydraulic rod is positioned corresponding to the through hole.

[0008] A further preferred embodiment: a sealing strip is provided around the inner wall of the inspection port, and a sealing groove is provided around the outer surface of the sealing block. The sealing strip can be embedded inside the sealing groove, and the sealing groove and the sealing strip fit together and are movably connected.

[0009] A further preferred embodiment: the turntable is provided with several clips on its outer side, the tool holder can be embedded in the clips, and the tool holder and the clips are detachably connected.

[0010] A further preferred embodiment: the upper end of the limiting box is embedded inside the limiting groove, and the limiting box and the limiting groove are slidably connected. One end of the limiting groove is interconnected with the outer surface of the cutter head, and the upper end of the limiting box is interconnected with the side.

[0011] A further preferred embodiment: the limiting box is provided with several rubber strips inside, and the inner side of the rubber strips is arc-shaped.

[0012] A further preferred embodiment: a spring is provided inside the tool holder, a connecting block is provided at the bottom of the spring, and a pad is provided at the upper end of the spring. The diameter of the pad is the same as the diameter of the upper end of the tool holder, and the pad is located below the output end of the hydraulic rod.

[0013] A further preferred embodiment: the tool body can be embedded inside the connecting block, and the tool body is connected to the connecting block by bolts.

[0014] Beneficial effects:

[0015] 1. By setting up a limiting box, the cutting tool is surrounded, making disassembly safer. When the cutting tool needs to be replaced, the limiting box is moved to the bottom of the through hole, and the hydraulic rod is used to push the cutting tool and connecting block out of the through hole, allowing the cutting tool body to enter the limiting box. The rubber strip inside the limiting box fits against the outer surface of the cutting tool, providing cushioning and anti-slip properties, ensuring greater safety for the operator during disassembly. Then, the operator can directly use tools to disassemble the bolts connecting the cutting tool body and the connecting block through the cutouts in the limiting box. The faulty cutting tool is directly brought into the limiting box, allowing for disassembly and replacement. After replacement, the operator is safer when changing cutting tools, thus improving the safety of the device to a certain extent.

[0016] 2. By setting up a turntable, the tool holder is used to limit the tool position, and the turntable further limits the tool holder position. The tool holder can be directly snapped into the clamp on the outer surface of the turntable for fixation. The clamp and the tool holder are movably connected, making the tool holder replacement and maintenance more convenient and flexible. The tool holder can be directly replaced and disassembled from the maintenance port. The maintenance port is sealed with a sealing block to prevent dust and other impurities from entering and affecting the operation of the device. When the sealing block is embedded in the maintenance port, the sealing strip and the sealing groove opened around the outer surface of the sealing block cooperate with each other, so that the sealing strip can be tightly embedded in the sealing groove, effectively improving the sealing performance of the maintenance port and making the device more stable during use. The turntable is driven by a motor to rotate, making the tool replacement more convenient and stable.

[0017] 3. In summary, this CNC tool switching device, by incorporating a limit box and a turntable, makes tool switching more convenient and safer during tool replacement. When tool switching is required, the hydraulic rod is released, allowing the connecting block and tool body to reset via the spring's return force. The motor then continues to rotate, moving the new tool to the upper position of the through hole. The hydraulic rod then activates, completing the tool switching and ensuring stable and accurate tool switching. When a tool needs replacement, the limit box is moved to the bottom of the through hole, and the hydraulic rod pushes the tool and connecting block out of the through hole, allowing the tool body to enter the limit box. The operator can then use tools to disassemble the bolts connecting the tool body and the connecting block through the cutouts in the limit box. Damaged tools are directly brought into the limit box, facilitating tool disassembly and replacement, making tool disassembly safer for the operator. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the bottom structure of the cutter head of this utility model.

[0020] Figure 3 This is a schematic diagram of the sealing block structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the cutter head of this utility model.

[0022] Figure 5 This is a schematic diagram of the turntable structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the limiting box structure of this utility model.

[0024] Figure 1-6In the middle: 1. Cutter head; 101. Limiting groove; 102. Through hole; 103. Inspection port; 104. Sealing strip; 2. Sealing block; 201. Sealing groove; 3. Limiting box; 301. Rubber strip; 4. Motor; 401. Rotating rod; 402. Turntable; 403. Clamp; 5. Cutter post; 501. Spring; 502. Connecting block; 503. Pad; 6. Cutter body; 7. Hydraulic rod. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figures 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0026] Please see Figure 1-6In this embodiment of the present invention, a CNC tool switching device includes: a tool disc 1, a sealing block 2 embedded on the outer side of the tool disc 1, a limit box 3 installed on one side of the tool disc 1, a motor 4 installed on the upper end of the tool disc 1, a rotating rod 401 installed at the output end of the motor 4, a turntable 402 connected to one end of the rotating rod 401, a tool holder 5 movably connected to the outer side of the turntable 402, a tool body 6 installed below the tool holder 5, and a hydraulic rod 7 installed inside the tool disc 1; a limit groove 101 is opened on one side of the tool disc 1, a through hole 102 is opened on the inner wall of the limit groove 101, an inspection port 103 is opened on one side of the tool disc 1, the sealing block 2 is embedded inside the inspection port 103, the sealing block 2 is connected to the tool disc 1 by bolts, and the hydraulic rod 7 corresponds to the position of the through hole 102. The turntable 402 has several clips 403 on its outer side. The tool holder 5 can be embedded in the clips 403, and the tool holder 5 and the clips 403 are detachably connected. The tool disc 1 is the main structure of the entire device. The sealing block 2 on the outside can enhance the sealing of the inspection port 103 to prevent dust and other impurities from entering and affecting the operation of the device. The inspection port 103 facilitates the inspection and maintenance of the inside of the tool disc 1. The sealing block 2 is connected to the tool disc 1 by bolts to ensure the sealing of the inspection port 103 in the non-maintenance state. The limit box 3 plays the role of limiting the tool's position, ensuring that the tool body 6 is more safe when disassembling, and can replace faulty tools in time, so that the position of the device is stable during operation. The motor 4 provides power for the switching of the turntable 402. The power source is the rotating rod 401 at the output end, which drives the turntable 402 to rotate. The rotating rod 401 transmits the power of the motor 4 to the turntable 402. The clamp 403 on the outside of the turntable 402 is used to connect the tool holder 5. The rotation of the turntable 402 realizes the switching of different tools. The tool holder 5 is used to install the tool body 6. The tool holder 5 and the clamp 403 are detachably connected, which facilitates timely replacement if the tool holder 5 has a problem. It is located inside the tool disc 1, corresponding to the position of the through hole 102 on the outside of the turntable 402. The hydraulic rod 7 applies pressure to the tool holder 5, so that the tool body 6 is ejected from the inside of the tool disc 1 through the through hole 102 for use. When it is necessary to switch tools, the motor 4 starts, drives the rotating rod 401 to rotate, and then makes the turntable 402 rotate. Different cutters are mounted on different clamps 403 on the outside of the turntable 402. By rotating the turntable 402, the required cutter is rotated to the position of the through hole 102. During the switching process, the hydraulic rod 7 can extend or retract as needed, cooperate with the through hole 102, and push out the cutter under the cutter holder 5 to complete the replacement, ensuring the stability and accuracy of cutter switching. When the device needs to be inspected, the sealing block 2 can be opened by removing the bolts, and the inside of the cutter disc 1 can be inspected and repaired through the inspection port 103. When there is a problem with the material output of individual cutter holders 5, the motor 4 is rotated to turn the problematic cutter holder 5 to the inspection port 103 for direct replacement, making the device more convenient to maintain and the cutter switching more flexible.

[0027] In this embodiment of the utility model, a sealing strip 104 is arranged around the inner wall of the inspection port 103, and a sealing groove 201 is formed around the outer surface of the sealing block 2. The sealing strip 104 can be embedded in the sealing groove 201. The sealing groove 201 and the sealing strip 104 fit together and are movably connected. The sealing strip 104 is usually made of elastic and sealing materials such as rubber. When the sealing block 2 is embedded in the inspection port 103, the sealing strip 104 and the sealing groove 201 formed around the outer surface of the sealing block 2 cooperate with each other, so that the sealing strip 104 can be tightly embedded in the sealing groove 201, effectively improving the sealing performance of the inspection port 103. After block 2 is installed in place, the sealing strip 104 is squeezed between the inner wall of the inspection port 103 and the sealing block 2, forming an effective sealing barrier. The movable connection allows the sealing block 2 to be easily removed from the inspection port 103 when maintenance is required. Under normal working conditions, the cooperation between the sealing strip 104 and the sealing groove 201 can ensure that the inside of the cutter head 1 is effectively isolated from the external environment, preventing external dust, impurities, cutting fluid, etc. from entering the inside of the cutter head 1, protecting the precision components inside the cutter head 1 such as the motor 4, rotating rod 401, turntable 402, and hydraulic rod 7 from damage, and ensuring the stable operation and service life of the CNC tool switching device.

[0028] In this embodiment of the utility model, the upper end of the limiting box 3 is embedded inside the limiting groove 101, and the limiting box 3 and the limiting groove 101 are slidably connected. One end of the limiting groove 101 is interconnected with the outer surface of the cutter head 1, and the upper end of the limiting box 3 is interconnected with the side. Several rubber strips 301 are provided inside the limiting box 3, and the inner side of each rubber strip 301 is arc-shaped. The limiting groove 101 and the limiting box 3 are slidably connected, allowing the limiting box 3 to slide and adjust its position relative to the cutter head 1 within a certain range. The interconnection between one end of the limiting groove 101 and the outer surface of the cutter head 1 facilitates the smooth embedding of the upper end of the limiting box 3 into the limiting groove 101. Simultaneously, the interconnection between the upper end of the limiting box 3 and the side allows the limiting box 3 to slide freely within the limiting groove 101. When adjusting the position, there is no excessive structural obstruction, ensuring smooth sliding. When the tool body 6 needs to be replaced, the limiting box 3 is moved to the bottom of the through hole 102, and the tool is pushed out from the inside of the through hole 102 using the hydraulic rod 7, thereby surrounding the tool body 6, making it safer for the operator to disassemble. Several rubber strips 301 are set inside the limiting box 3. The inner side of the rubber strips 301 is arc-shaped. The arc design better fits the outer surface of the tool, increases the contact area, and improves the stability of the limiting. The rubber material has a certain elasticity and friction, which can play a role in buffering and anti-slip, preventing the tool from moving during disassembly, making it safer and more convenient for the operator to disassemble the tool.

[0029] In this embodiment of the invention, a spring 501 is provided inside the tool holder 5, a connecting block 502 is provided at the bottom of the spring 501, and a pad 503 is provided at the upper end of the spring 501. The diameter of the pad 503 is the same as the diameter of the upper end of the tool holder 5, and the pad 503 is located below the output end of the hydraulic rod 7. The tool body 6 can be embedded inside the connecting block 502, and the tool body 6 is connected to the connecting block 502 by bolts. The spring 501 provided inside the tool holder 5 plays a role in buffering and resetting. When the tool body 6 is subjected to cutting forces or other external forces during operation... When force is applied, spring 501 can absorb some of the impact force, reducing damage to the tool holder 5 and other components. Simultaneously, during tool switching, spring 501 also helps the tool body 6 return to its original position. The connecting block 502 at the bottom of spring 501 is used to fix the tool body 6. The tool body 6 can be embedded inside the connecting block 502 and connected to it by bolts, ensuring that the tool will not loosen or fall off during operation. The diameter of the pad 503 at the upper end of spring 501 is the same as the diameter at the upper end of the tool holder 5, ensuring the pad... The 503 pad can be stably placed inside the tool holder 5. The 503 pad is located below the output end of the hydraulic rod 7. When the hydraulic rod 7 is working, the output end of the hydraulic rod 7 can directly act on the pad 503. By applying pressure to the pad 503, the spring 501 is compressed, causing the connecting block 502 and the tool body 6 to move downwards and further limit the internal position of the through hole 102, thereby changing the tool. During the tool switching process, the hydraulic rod 7 can loosen or fix the tool body 6 by controlling the position of the pad 503, realizing quick tool replacement and making tool replacement more flexible. When the tool needs to be replaced, the hydraulic rod 7 applies further pressure to the pad 503, causing the connecting block 502 and the tool body 6 to move out of the through hole 102, so that the position of the connecting bolt corresponds to the cutout of the limit box 3. The operator can directly use tools to remove the screws through the cutout of the limit box 3, thereby removing the tool. Then, the limit box 3 is moved out from the bottom of the tool disc 1 to replace the new tool, making the operator safer when changing tools.

[0030] Working principle: When motor 4 is in a non-working state, hydraulic rod 7 is not activated. The sealing block 2 on the outside of the cutter head 1 is tightly fitted with the inspection port 103. The sealing groove 201 on the outer surface of the sealing block 2 matches the sealing strip 104 on the inner wall of the inspection port 103, forming an effective seal to prevent external dust, impurities, and cutting fluid from entering the cutter head 1, protecting the internal precision components such as motor 4, rotating rod 401, turntable 402, and hydraulic rod 7. The tool holder 5 is connected to the outside of the turntable 402 via clamp 403. The tool body 6 is fixed to the connecting block 502 at the bottom of the tool holder 5 by bolts. Spring 501 is in a natural or slightly compressed state, providing a certain buffer for the tool body 6. Limit box 3 is in the initial position, limiting the position of the tool body 6 and ensuring the stability of the tool body 6 during operation. When the tool needs to be used, motor 4 starts, driving rotating rod 401 to rotate, which in turn causes turntable 402 to rotate. The different clamps 403 on the outside of turntable 402... Different cutting tools are installed. By rotating the turntable 402, the required cutting tool is rotated to the position corresponding to the through hole 102 on one side of the cutting tool 1. During the switching process, the hydraulic rod 7 extends or retracts as needed and cooperates with the through hole 102. When the hydraulic rod 7 extends, the output end of the hydraulic rod 7 acts on the pad 503 inside the tool holder 5. By applying pressure to the pad 503, the spring 501 is compressed, causing the connecting block 502 and the cutting tool body 6 to move downward. This pushes the cutting tool body 6 out of the cutting tool 1 through the through hole 102, so that the connecting block 502 is locked inside the through hole 102 for limiting, making the cutting tool more stable during use. When it is necessary to switch cutting tools, the hydraulic rod 7 is released, so that the connecting block 502 and the cutting tool body 6 are reset by the rebound force of the spring 501. Then the motor 4 continues to rotate, rotating the new cutting tool to the position at the upper end of the through hole 102. The hydraulic rod 7 is activated to complete the cutting tool switching, ensuring the stability and accuracy of cutting tool switching.When the device needs maintenance, the sealing block 2 can be opened by removing the bolts, and the inside of the cutter head 1 can be inspected and repaired through the inspection port 103. If any individual cutter post 5 has a problem, the motor 4 can be rotated to move the problematic cutter post 5 to the inspection port 103, and the cutter post 5 can be directly removed from the inspection port 103 for replacement. The connection of the clamp 403 makes the tool disassembly more convenient. When the tool needs to be replaced, the limit box 3 is moved to the bottom of the through hole 102, and the hydraulic rod 7 is used to push the tool and connecting block 502 out of the through hole 102, so that the tool body 6 enters the limit box. Inside the limit box 3, the rubber strip 301 inside fits against the outer surface of the cutter, providing cushioning and anti-slip properties to ensure greater safety for workers during disassembly. Workers then use tools to disassemble the bolts connecting the cutter body 6 and the connecting block 502 through the openings in the limit box 3. Damaged cutters are directly brought into the limit box 3 for disassembly and replacement. After replacement, the hydraulic rod 7 returns to its original position, removing the limit box 3 from the bottom of the cutter disc 1 and restoring the device to normal operation. This makes cutter replacement safer and improves the overall safety of the device.

Claims

1. A CNC tool switching device, comprising: A cutter head (1) is characterized in that: a sealing block (2) is embedded on the outside of the cutter head (1), a limit box (3) is installed on one side of the cutter head (1), a motor (4) is provided on the upper end of the cutter head (1), a rotating rod (401) is provided at the output end of the motor (4), a turntable (402) is connected to one end of the rotating rod (401), a tool holder (5) is movably connected to the outside of the turntable (402), a tool body (6) is provided below the tool holder (5), and a hydraulic rod (7) is provided inside the cutter head (1); A limiting groove (101) is provided on one side of the cutter head (1), and a through hole (102) is provided on the inner wall of the limiting groove (101). An inspection port (103) is provided on one side of the cutter head (1). The sealing block (2) is embedded in the inspection port (103). The sealing block (2) is connected to the cutter head (1) by bolts. The hydraulic rod (7) is positioned corresponding to the through hole (102).

2. The CNC tool switching device according to claim 1, characterized in that: The inner wall of the inspection port (103) is surrounded by a sealing strip (104), and the outer surface of the sealing block (2) is surrounded by a sealing groove (201). The sealing strip (104) can be embedded in the sealing groove (201). The sealing groove (201) and the sealing strip (104) fit each other and are movably connected.

3. The CNC tool switching device according to claim 1, characterized in that: The turntable (402) is provided with several clips (403) on its outer side. The tool holder (5) can be embedded in the clips (403), and the tool holder (5) and the clips (403) are detachably connected.

4. The CNC tool switching device according to claim 1, characterized in that: The upper end of the limiting box (3) is embedded inside the limiting groove (101), and the limiting box (3) and the limiting groove (101) are slidably connected. One end of the limiting groove (101) is connected to the outer surface of the cutter head (1), and the upper end of the limiting box (3) is connected to the side.

5. A CNC tool switching device according to claim 1, characterized in that: The limiting box (3) is provided with several rubber strips (301) inside, and the inner side of the rubber strips (301) is arc-shaped.

6. A CNC tool switching device according to claim 1, characterized in that: The tool holder (5) is equipped with a spring (501) inside. A connecting block (502) is provided at the bottom of the spring (501). A pad (503) is provided at the upper end of the spring (501). The diameter of the pad (503) is the same as the diameter of the upper end of the tool holder (5). The pad (503) is located below the output end of the hydraulic rod (7).

7. A CNC tool switching device according to claim 6, characterized in that: The tool body (6) can be embedded inside the connecting block (502), and the tool body (6) is connected to the connecting block (502) by bolts.

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