Water-cooled tool rest for numerically controlled lathe

Abstract

The invention belongs to the technical field of machine tool accessories, and discloses a water-cooled numerical control lathe tool rest which comprises a rack, a servo motor is fixedly installed on the left side of the rack, a tool fixing frame is fixedly installed at the output end of the servo motor, and clamping grooves are formed in the outer side face of the tool fixing frame at equal angles. And numerical control tools are movably clamped in the clamping grooves, an extension frame is fixedly mounted at the front end of the servo motor, and a tool mounting frame located right in front of the clamping grooves is fixedly mounted on one side of the extension frame. By means of high-pressure water input from the outside during water cooling and under the action of the high-pressure water, an unused cutter can be automatically locked by the device during cutter changing and cutter mounting, so that the cutter cannot move, the whole process can be automatically completed before cutter changing, and the situation that when a traditional device is used for cutter changing and cutter mounting, the cutter cannot be moved is effectively avoided. And the cutter can still move, the probabilistic cutter collision problem exists, and potential safety hazards are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of machine tool accessories, in particular to a water-cooled tool rest for a numerically controlled lathe. Background Art

[0002] The CNC tool rest is the most common auxiliary device for CNC lathes, which is used to clamp the cutting tools for lathes. It enables the CNC lathe to complete multiple or even all processing procedures in one clamping of the workpiece, thereby shortening the auxiliary time of processing, reducing the errors caused by multiple installations of the workpiece during processing, and improving the processing efficiency and processing accuracy of the machine tool. The CNC machine tool tool rest can be divided into row-type tool rests and rotary tool rests. Among them, the row-type tool rest is generally used for small-sized CNC lathes, mainly for processing bar or disc parts; the rotary tool rest is the most commonly used typical tool changer for CNC lathes, which generally realizes the automatic tool change action of the machine tool through hydraulic systems or electrical systems. According to the processing requirements, it can be designed into a square, hexagonal or disc-type tool rest, and 4, 6 or more tools can be installed accordingly.

[0003] A conventional disc tool holder includes a rotatable disc with a tool mounted on it. The disc is rotated to correspond to the tool mounting frame, and the tool is pushed by a hydraulic device. In practice, although the corresponding tool on the tool holder is pushed to the mounting frame, the tool on the entire disc tool holder can still be displaced. When an error operation occurs, it is difficult to quickly correspond the part of the tool holder where the tool is not installed with the mounting frame part, and there is a probability of a tool collision accident, and the safety redundancy is low.

[0004] At the same time, in order to reduce the heat generated by the tool during processing, a water cooling system will be installed near the tool to achieve cooling and debris removal by spraying high-pressure water. This operation mode will also be activated when the tool is not installed in place, and the advancement position of each tool is different. When switching tools, the position of the water cooling head must also be switched to achieve correct water cooling. The overall operation is relatively cumbersome. Summary of the invention

[0005] The object of the present invention is to provide a water-cooled tool holder for a CNC lathe to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a tool holder for a CNC lathe using water cooling comprises a frame, a servo motor is fixedly installed on the left side of the frame, a tool fixing frame is fixedly installed on the output end of the servo motor, the outer side surface of the tool fixing frame is provided with card slots at equal angles, and the inside of the card slots are movably connected with CNC tools, an extension frame is fixedly installed on the front end of the servo motor, a tool mounting frame located directly in front of the card slot is fixedly installed on one side of the extension frame, an installation groove for installing the CNC tool is provided inside the tool mounting frame, a groove is provided on the right side of the tool fixing frame, a tool locking assembly is installed inside the groove, a water cooling assembly is movably installed in the middle of the right end of the tool locking assembly, a tool propulsion assembly located on one side of the tool mounting frame is fixedly connected near the bottom end of the outer side surface of the water cooling assembly, the tool mounting frame and the tool propulsion assembly are arranged in parallel, a limiting hole is provided at a position near the rear end of the CNC tool, and the outer side surface of the water cooling assembly is fixedly sleeved with the frame.

[0007] Before using the device, the device can be installed at the corresponding position of the CNC machine tool, and one end of the tool pushing assembly is connected to the external water pump, and high-pressure water is input into the interior of the device through the external water pump. At the same time, in the initial state, the tool locking assembly and the water cooling assembly are both in the initial state, and all CNC tools are located inside the card slot. The tool mounting frame has no tools installed in the initial state.

[0008] As a further technical solution of the present invention, the tool locking assembly includes a limit plate, and limit grooves are provided at equal angles on the front side of the limit plate. The interior of the limit grooves is movably connected with limit rods, and the limit rods are displaced forward and backward relative to the limit grooves. The diameter of the limit rod is the same as the inner diameter of the limit hole.

[0009] As a further technical solution of the present invention, the tool locking assembly also includes a fixed tube, one end of the fixed tube is connected to one end of the groove, the internal movable sleeve of the fixed tube is provided with a movable plate, one end of the movable plate is fixedly connected to a reset spring located inside the fixed tube, and the other end of the reset spring is connected to one end of the inner cavity of the fixed tube.

[0010] As a further technical solution of the present invention, one end of the movable plate away from the return spring is fixedly connected to a movable rod, one end of the movable rod passes through one end of the fixed tube and is connected to the middle part of the limiting plate.

[0011] As a further technical solution of the present invention, when the reset spring is in an initial state, the limit rod is located directly above the limit hole, and when the reset spring is in an extreme compression state, the limit rod is movably engaged with the limit hole.

[0012] When switching the tool, the servo motor can be turned on to drive the tool holder to rotate. At this time, the tool locking assembly rotates synchronously, and the tool holder rotates relative to the water cooling assembly. As the tool holder rotates, the CNC tool can rotate circumferentially relative to the tool holder. When the corresponding CNC tool rotates to the tool mounting frame and the CNC tool is located directly behind the tool mounting frame, the tool holder stops rotating and waits for the tool installation process.

[0013] As a further technical solution of the present invention, the water cooling component includes a water storage pipe, which is fixedly connected to the frame, and a first piston plate is movably connected inside the water storage pipe. The first piston plate is fixedly connected to a first piston rod at one end close to the limiting plate. The first piston rod passes through one end of the water storage pipe and is movably connected to the limiting plate, and the limiting plate rotates relative to the first piston rod.

[0014] As a further technical solution of the present invention, one end of the water storage pipe away from the limiting plate is fixedly connected to a water inlet valve, and the other end of the water inlet valve is connected to an external water pump.

[0015] When installing the tool, the external water pump can be turned on to input high-pressure water into the water inlet valve. At this time, the high-pressure water enters the water storage pipe and pushes the first piston plate to move to the left, while driving the first piston rod to move to the left. When the first piston rod moves to the left, pressure can be applied to the limit plate. At this time, the limit plate moves toward the direction close to the tool fixing frame. At this time, the movable rod and the movable plate move to the left and compress the reset spring. When the reset spring is compressed to the limit position, the distance between the limit plate and the tool fixing frame is the minimum. At this time, multiple limit rods are inserted into the limit holes, completing the limiting process of all CNC tools. At this time, all CNC tools that do not correspond to the tool mounting frame are limited and cannot be displaced, completing the locking process.

[0016] By utilizing the external high-pressure water during water cooling, the device can automatically lock the unused tools when changing and installing the tools, so that the tools cannot be moved. The whole process can be completed automatically before the tool change, which can effectively avoid the problem of probabilistic tool collision when the traditional device changes and installs the tools, thereby reducing safety hazards.

[0017] As a further technical solution of the present invention, the tool propulsion assembly includes a propulsion tube, the rear end of the propulsion tube is fixedly connected to a first water hose, the first water hose is connected to a position near the left side of the outer side of the water storage pipe, when the first piston plate is displaced to the leftmost side of the water storage pipe, the first piston plate is located on the left side of the output end of the first water hose, and the internal movable sleeve of the propulsion tube is connected to the second piston plate.

[0018] As a further technical solution of the present invention, one end of the second piston plate away from the first water supply hose is fixedly connected to a second piston rod, and one end of the second piston rod away from the second piston plate is fixedly connected to a propulsion clamp located on the rear side of the limit rod. The outer side surface of the second piston rod is movably sleeved with a limit spring, and both ends of the limit spring are connected to one end of the second piston plate and one end of the inner cavity of the propulsion tube.

[0019] As a further technical solution of the present invention, a high-pressure nozzle is fixedly connected to the right side of the propulsion clamp, the output end of the high-pressure nozzle is located on one side of the tool mounting bracket, the rear end of the high-pressure nozzle is fixedly connected to a second water supply hose, and the other end of the second water supply hose is connected to the outer side surface of the propulsion tube near the front end.

[0020] When the tool is installed, that is, the first piston plate is displaced to the leftmost side and the limit rod completes the locking state with the CNC tool, high-pressure water is then introduced into the interior of the propulsion tube through the first water supply hose, and the second piston plate is pushed forward. At this time, the limit spring can be compressed, and at the same time, the second piston rod is driven to move forward. Since the CNC tool and the tool mounting frame correspond to each other at this time, and the limit rod completes the locking process with the CNC tool, the propulsion clamp can contact the limit rod located on the rear side and push the limit rod to move forward relative to the limit slot. At this time, the CNC tool is displaced relative to the slot until the CNC tool is installed into the interior of the tool mounting frame. At this time, the limit rod can be located at the outermost side of the limit slot, and the tool installation process is completed.

[0021] By utilizing external high-pressure water input, the position of the unused CNC tool can be locked, and the CNC tool to be used can be directly pushed into the tool mounting frame and installed. The entire process can be automatically completed after the CNC tool is locked, and the tool installation process can be quickly realized. At the same time, the CNC tool can be automatically retracted and the lock of the CNC tool can be automatically released during resetting, which significantly improves the tool installation efficiency and the overall tool change speed.

[0022] And when the installation between the CNC tool and the tool mounting bracket is completed, the high-pressure water is then discharged through the second water supply hose. At the same time, the forward displacement of the push clamp can synchronously pull the high-pressure nozzle forward. When the push clamp is in place, the output end of the high-pressure nozzle is also located on one side of the tool mounting bracket, that is, corresponding to the CNC tool installed in place. At the same time, the high-pressure water discharged through the second water supply hose can be directly sprayed out through the high-pressure nozzle and act on the CNC tool to complete the process of cooling and removing debris.

[0023] By directly utilizing the imported high-pressure water and the advancement and installation process of the tool, the position of the high-pressure nozzle can be automatically adjusted and positioned, and high-pressure water can be directly output to complete the cooling process of the CNC tool. This avoids the problem of traditional devices requiring the position of the high-pressure nozzle to be adjusted every time the CNC tool is switched. The entire process can be completed automatically, effectively simplifying the operating steps and improving the overall tool changing efficiency.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention utilizes high-pressure water input from the outside during water cooling. Through the action of high-pressure water, the device can automatically lock unused tools when changing tools and installing tools, so that the tools cannot be moved. The entire process can be completed automatically before changing tools, which can effectively avoid the problem of probabilistic tool collision when traditional devices are changing tools and installing tools, thereby reducing safety hazards.

[0025] (2) The present invention directly utilizes the introduced high-pressure water and the advancement and installation process of the tool to automatically adjust the position of the high-pressure nozzle, automatically position the high-pressure nozzle, and directly output high-pressure water to complete the cooling process of the CNC tool, thereby avoiding the problem of traditional devices that require adjusting the position of the high-pressure nozzle every time the CNC tool is switched. The entire process can be completed automatically, effectively simplifying the operating steps and improving the overall tool changing efficiency.

[0026] (3) The present invention utilizes external high-pressure water to lock the position of the unused CNC tool. At the same time, the CNC tool to be used can be directly pushed into the interior of the tool mounting frame and installed. The entire process can be automatically completed after the CNC tool is locked, and the tool installation process can be quickly realized. At the same time, the CNC tool can be automatically retracted and the lock of the CNC tool can be automatically released during resetting, which significantly improves the tool installation efficiency and the overall tool change speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the coordination of the frame, the servo motor and the extension frame structure of the present invention; Figure 3 It is a schematic diagram of the cooperation between the tool fixing frame and the numerical control tool structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the internal structure of the tool fixing frame of the present invention; Figure 5 It is a separate schematic diagram of the tool locking assembly structure of the present invention; Figure 6 for Figure 5 A magnified schematic diagram of the structure at center A; Figure 7It is a schematic diagram of the coordination of the water cooling assembly and the tool propulsion assembly structure of the present invention; Figure 8 It is a cross-sectional schematic diagram of the internal structure of the tool propulsion assembly of the present invention.

[0028] In the figure: 1. frame; 2. servo motor; 3. extension frame; 4. tool mounting frame; 5. tool fixing frame; 6. slot; 7. CNC tool; 8. limit hole; 9. groove; 10. tool locking assembly; 101. limit plate; 102. limit slot; 103. limit rod; 104. fixed pipe; 105. movable rod; 106. movable plate; 107. reset spring; 11. water cooling assembly; 111. water storage pipe; 112. first piston plate; 113. first piston rod; 114. water inlet valve; 12. tool pushing assembly; 121. pushing pipe; 122. first water hose; 123. second piston plate; 124. second piston rod; 125. second water hose; 126. high pressure nozzle; 127. pushing clamp; 128. limit spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 8 As shown, in the embodiment of the present invention, a tool holder for a CNC lathe using water cooling comprises a frame 1, a servo motor 2 is fixedly mounted on the left side of the frame 1, a tool fixing frame 5 is fixedly mounted on the output end of the servo motor 2, a card slot 6 is provided at equal angles on the outer side surface of the tool fixing frame 5, a CNC tool 7 is movably connected inside the card slot 6, an extension frame 3 is fixedly mounted on the front end of the servo motor 2, a tool mounting frame 4 located just in front of the card slot 6 is fixedly mounted on one side of the extension frame 3, a mounting groove for installing the CNC tool 7 is provided inside the tool mounting frame 4, a groove 9 is provided on the right side of the tool fixing frame 5, a tool locking assembly 10 is installed inside the groove 9, a water cooling assembly 11 is movably mounted in the middle of the right end of the tool locking assembly 10, a tool pushing assembly 12 located on one side of the tool mounting frame 4 is fixedly connected near the bottom end on the outer side surface of the water cooling assembly 11, the tool mounting frame 4 and the tool pushing assembly 12 are arranged in parallel, a limiting hole 8 is provided on the position near the rear end of the CNC tool 7, and the outer side surface of the water cooling assembly 11 is fixedly sleeved with the frame 1.

[0031] Before the device is used, it can be installed at the corresponding position of the CNC machine tool, and one end of the tool propulsion assembly 12 is connected to the external water pump, and high-pressure water is input into the interior of the device through the external water pump. At the same time, in the initial state, the tool locking assembly 10 and the water cooling assembly 11 are both in the initial state, and all CNC tools 7 are located inside the slot 6, and the tool mounting frame 4 has no tools installed in the initial state.

[0032] like Figure 3 and Figure 4 as well as Figure 5 and Figure 6 As shown, the tool locking assembly 10 includes a limit plate 101, and a limit groove 102 is provided at an equal angle on the front of the limit plate 101. The inside of the limit groove 102 is movably connected to a limit rod 103, and the limit rod 103 is displaced forward and backward relative to the limit groove 102. The diameter of the limit rod 103 is the same as the inner diameter of the limit hole 8. The tool locking assembly 10 also includes a fixed tube 104, one end of the fixed tube 104 is connected to one end of the groove 9, and the fixed tube 104 is movably sleeved with a movable plate 106, and one end of the movable plate 106 is fixedly connected to a limit plate 106. There is a return spring 107 inside the fixed tube 104, and the other end of the return spring 107 is connected to one end of the inner cavity of the fixed tube 104. The end of the movable plate 106 away from the return spring 107 is fixedly connected with a movable rod 105. One end of the movable rod 105 passes through one end of the fixed tube 104 and is connected to the middle part of the limit plate 101. When the return spring 107 is in the initial state, the limit rod 103 is located directly above the limit hole 8. When the return spring 107 is in the extreme compression state, the limit rod 103 and the limit hole 8 are movably engaged.

[0033] When switching the tool, the servo motor 2 can be turned on to drive the tool fixing frame 5 to rotate. At this time, the tool locking assembly 10 rotates synchronously, and the tool fixing frame 5 rotates relative to the water cooling assembly 11. As the tool fixing frame 5 rotates, the CNC tool 7 can rotate circumferentially relative to the tool fixing frame 5. When the corresponding CNC tool 7 rotates to the tool mounting frame 4 and the CNC tool 7 is located directly behind the tool mounting frame 4, the tool fixing frame 5 stops rotating and waits for the tool installation process.

[0034] like Figure 1 and Figure 4 as well as Figure 7As shown, the water cooling assembly 11 includes a water storage pipe 111, which is fixedly sleeved with the frame 1, and a first piston plate 112 is movably sleeved inside the water storage pipe 111. The end of the first piston plate 112 close to the limiting plate 101 is fixedly connected to a first piston rod 113, and the first piston rod 113 passes through one end of the water storage pipe 111 and is movably connected to the limiting plate 101. The limiting plate 101 rotates relative to the first piston rod 113, and the end of the water storage pipe 111 away from the limiting plate 101 is fixedly connected to a water inlet valve 114, and the other end of the water inlet valve 114 is connected to an external water pump.

[0035] Embodiment: When installing the tool, the external water pump can be turned on to input high-pressure water into the water inlet valve 114. At this time, the high-pressure water enters the water storage pipe 111 and pushes the first piston plate 112 to move to the left, while driving the first piston rod 113 to move to the left. When the first piston rod 113 moves to the left, pressure can be applied to the limit plate 101. At this time, the limit plate 101 moves toward the direction close to the tool fixing frame 5. At this time, the movable rod 105 and the movable plate 106 move to the left and compress the reset spring 107. When the reset spring 107 is compressed to the limit position, the distance between the limit plate 101 and the tool fixing frame 5 is the minimum. At this time, multiple limit rods 103 are inserted into the limit hole 8, completing the limiting process of all CNC tools 7. At this time, all CNC tools 7 that do not correspond to the tool mounting frame 4 are limited and cannot be displaced, completing the locking process.

[0036] By utilizing the external high-pressure water during water cooling, the device can automatically lock the unused tools when changing and installing the tools, so that the tools cannot be moved. The whole process can be completed automatically before the tool change, which can effectively avoid the problem of probabilistic tool collision when the traditional device changes and installs the tools, thereby reducing safety hazards.

[0037] like Figure 1 and Figure 4 as well as Figure 7 and Figure 8As shown, the tool propulsion assembly 12 includes a propulsion tube 121, the rear end of the propulsion tube 121 is fixedly connected to a first water hose 122, the first water hose 122 is connected to the outer side of the water storage pipe 111 near the left side, when the first piston plate 112 moves to the leftmost side of the water storage pipe 111, the first piston plate 112 is located at the left side of the output end of the first water hose 122, the inside of the propulsion tube 121 is movably sleeved with a second piston plate 123, the end of the second piston plate 123 away from the first water hose 122 is fixedly connected to a second piston rod 124, and the second piston rod 124 is away from the second piston One end of the plate 123 is fixedly connected to a propulsion clamp 127 located on the rear side of the limit rod 103, and the outer side surface of the second piston rod 124 is movably sleeved with a limit spring 128. The two ends of the limit spring 128 are connected to one end of the second piston plate 123 and one end of the inner cavity of the propulsion tube 121. The right side of the propulsion clamp 127 is fixedly connected to a high-pressure nozzle 126, and the output end of the high-pressure nozzle 126 is located on one side of the tool mounting bracket 4. The rear end of the high-pressure nozzle 126 is fixedly connected to a second water hose 125, and the other end of the second water hose 125 is connected to the outer side surface of the propulsion tube 121 near the front end.

[0038] When the tool is installed, that is, the first piston plate 112 is displaced to the leftmost side and the limit rod 103 completes the locking state with the CNC tool 7, the high-pressure water is then introduced into the inside of the propulsion tube 121 through the first water supply hose 122, and the second piston plate 123 is pushed forward. At this time, the limit spring 128 can be compressed, and at the same time, the second piston rod 124 is driven to move forward. Since the CNC tool 7 and the tool mounting frame 4 correspond to each other at this time, and the limit rod 103 completes the locking process with the CNC tool 7, the propulsion clamp 127 can contact the limit rod 103 located at the rear side, and push the limit rod 103 to move forward relative to the limit groove 102. At this time, the CNC tool 7 is displaced relative to the clamping groove 6 until the CNC tool 7 is installed in the tool mounting frame 4. At this time, the limit rod 103 can be located at the outermost side of the limit groove 102, and the tool installation process is completed.

[0039] By utilizing external high-pressure water input, the position of the unused CNC tool 7 can be locked, and the CNC tool 7 to be used can be directly pushed into the interior of the tool mounting frame 4 and installed. The entire process can be automatically completed after the CNC tool 7 is locked, and the tool installation process can be quickly realized. At the same time, the CNC tool 7 can also be automatically retracted and the lock of the CNC tool 7 can be automatically released during resetting, which significantly improves the tool installation efficiency and the overall tool change speed.

[0040] Embodiment: After the installation between the CNC tool 7 and the tool mounting bracket 4 is completed, the high-pressure water is then discharged through the second water hose 125. At the same time, the forward displacement of the push clamp 127 can synchronously pull the high-pressure nozzle 126 forward. When the push clamp 127 is in place, the output end of the high-pressure nozzle 126 is also located on one side of the tool mounting bracket 4, that is, corresponding to the CNC tool 7 installed in place. At the same time, the high-pressure water discharged through the second water hose 125 can be directly sprayed out through the high-pressure nozzle 126 and act on the CNC tool 7 to complete the process of cooling and removing debris.

[0041] By directly utilizing the imported high-pressure water and the advancement and installation process of the tool, the position adjustment of the high-pressure nozzle 126 is automatically achieved, the positioning of the high-pressure nozzle 126 is automatically performed, and high-pressure water is directly output to complete the cooling process of the CNC tool 7, thereby avoiding the problem that the traditional device needs to adjust the position of the high-pressure nozzle 126 every time the CNC tool 7 is switched. The whole process can be completed automatically, effectively simplifying the operating steps and improving the overall tool changing efficiency.

[0042] Working principle and usage process: Before using the device, the device can be installed at the corresponding position of the CNC machine tool, and one end of the tool pushing assembly 12 is connected to the external water pump, and high-pressure water is input into the interior of the device through the external water pump. At the same time, in the initial state, the tool locking assembly 10 and the water cooling assembly 11 are both in the initial state, and all CNC tools 7 are located inside the card slot 6, and the tool mounting frame 4 has no tools installed in the initial state; When switching the tool, the servo motor 2 can be turned on to drive the tool fixing frame 5 to rotate. At this time, the tool locking component 10 rotates synchronously, and the tool fixing frame 5 rotates relative to the water cooling component 11. As the tool fixing frame 5 rotates, the CNC tool 7 can rotate circumferentially relative to the tool fixing frame 5. When the corresponding CNC tool 7 rotates to the tool mounting frame 4 and the CNC tool 7 is located directly behind the tool mounting frame 4, the tool fixing frame 5 stops rotating and waits for the tool mounting process. When installing the tool, the external water pump can be turned on to input high-pressure water into the water inlet valve 114. At this time, the high-pressure water enters the water storage pipe 111 and pushes the first piston plate 112 to move to the left, while driving the first piston rod 113 to move to the left. When the first piston rod 113 moves to the left, pressure can be applied to the limit plate 101. At this time, the limit plate 101 moves toward the direction close to the tool fixing frame 5. At this time, the movable rod 105 and the movable plate 106 move to the left and compress the reset spring 107. When the reset spring 107 is compressed to the limit position, the distance between the limit plate 101 and the tool fixing frame 5 is the minimum. At this time, multiple limit rods 103 are inserted into the limit hole 8, completing the limiting process of all CNC tools 7. At this time, all CNC tools 7 that do not correspond to the tool mounting frame 4 are limited and cannot be displaced, completing the locking process; When installing the tool, that is, when the first piston plate 112 is displaced to the leftmost side and the limiting rod 103 completes the locking state with the CNC tool 7, the high-pressure water is then introduced into the inside of the propulsion tube 121 through the first water supply hose 122, and the second piston plate 123 is pushed forward. At this time, the limiting spring 128 can be compressed, and at the same time, the second piston rod 124 is driven to move forward. Since the CNC tool 7 and the tool mounting frame 4 correspond to each other at this time, and the limiting rod 103 completes the locking process with the CNC tool 7, the propulsion clamp 127 can contact the limiting rod 103 located at the rear side, and push the limiting rod 103 to move forward relative to the limiting groove 102. At this time, the CNC tool 7 is displaced relative to the clamping groove 6 until the CNC tool 7 is installed in the tool mounting frame 4. At this time, the limiting rod 103 can be located at the outermost side of the limiting groove 102, and the tool installation process is completed; And when the installation between the CNC tool 7 and the tool mounting bracket 4 is completed, the high-pressure water is then discharged through the second water supply hose 125. At the same time, the forward displacement of the pushing clamp 127 can synchronously pull the high-pressure nozzle 126 forward. When the pushing clamp 127 is in place, the output end of the high-pressure nozzle 126 is also located on one side of the tool mounting bracket 4, that is, corresponding to the CNC tool 7 installed in place. At the same time, the high-pressure water discharged through the second water supply hose 125 can be directly sprayed out through the high-pressure nozzle 126 and act on the CNC tool 7 to complete the cooling and debris removal process.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-cooled tool holder for a CNC lathe, comprising a frame (1), characterized in that: A servo motor (2) is fixedly mounted on the left side of the frame (1); a tool fixing frame (5) is fixedly mounted on the output end of the servo motor (2); a card slot (6) is provided at an equal angle on the outer side surface of the tool fixing frame (5); a numerical control tool (7) is movably connected inside the card slot (6); an extension frame (3) is fixedly mounted on the front end of the servo motor (2); a tool mounting frame (4) located directly in front of the card slot (6) is fixedly mounted on one side of the extension frame (3); a mounting slot for mounting the numerical control tool (7) is provided inside the tool fixing frame (4); and the tool fixing frame (5) is provided with a mounting slot for mounting the numerical control tool (7). A groove (9) is provided on the right side of the frame (5), a tool locking assembly (10) is installed inside the groove (9), a water cooling assembly (11) is movably installed in the middle of the right end of the tool locking assembly (10), an outer side surface of the water cooling assembly (11) near the bottom end is fixedly connected to a tool pushing assembly (12) located on one side of the tool mounting frame (4), the tool mounting frame (4) and the tool pushing assembly (12) are arranged in parallel, a limiting hole (8) is provided at a position near the rear end of the CNC tool (7), and the outer side surface of the water cooling assembly (11) is fixedly sleeved with the frame (1).

2. The water-cooled tool rest for a CNC lathe according to claim 1, characterized in that: The tool locking assembly (10) comprises a limit plate (101), the front surface of the limit plate (101) is provided with limit slots (102) at equal angles, the interior of the limit slots (102) is movably engaged with a limit rod (103), the limit rod (103) is displaced forward and backward relative to the limit slots (102), and the diameter of the limit rod (103) is the same as the inner diameter of the limit hole (8).

3. The water-cooled tool rest for a CNC lathe according to claim 2, characterized in that: The tool locking assembly (10) further comprises a fixed tube (104), one end of which is connected to one end of the groove (9), a movable plate (106) is movably sleeved inside the fixed tube (104), one end of which is fixedly connected to a return spring (107) located inside the fixed tube (104), and the other end of which is connected to one end of the inner cavity of the fixed tube (104).

4. The water-cooled tool rest for a CNC lathe according to claim 3, characterized in that: One end of the movable plate (106) away from the return spring (107) is fixedly connected to a movable rod (105), and one end of the movable rod (105) passes through one end of the fixed tube (104) and is connected to the middle of the limiting plate (101).

5. The water-cooled tool rest for a CNC lathe according to claim 4, characterized in that: When the return spring (107) is in an initial state, the limit rod (103) is located directly above the limit hole (8); when the return spring (107) is in an extreme compression state, the limit rod (103) is movably engaged with the limit hole (8).

6. The water-cooled tool rest for a CNC lathe according to claim 5, characterized in that: The water cooling assembly (11) comprises a water storage pipe (111), the water storage pipe (111) being fixedly sleeved with the frame (1), a first piston plate (112) being movably sleeved inside the water storage pipe (111), a first piston rod (113) being fixedly connected to one end of the first piston plate (112) close to the limiting plate (101), the first piston rod (113) passing through one end of the water storage pipe (111) and being movably connected to the limiting plate (101), and the limiting plate (101) rotating relative to the first piston rod (113).

7. The water-cooled tool rest for a CNC lathe according to claim 6, characterized in that: One end of the water storage pipe (111) away from the limiting plate (101) is fixedly connected to a water inlet valve (114), and the other end of the water inlet valve (114) is connected to an external water pump.

8. The water-cooled tool rest for a CNC lathe according to claim 7, characterized in that: The tool propulsion assembly (12) comprises a propulsion tube (121), the rear end of the propulsion tube (121) being fixedly connected to a first water hose (122), the first water hose (122) being connected to a position close to the left side of the outer side of the water storage tube (111), when the first piston plate (112) moves to the leftmost side of the water storage tube (111), the first piston plate (112) is located at a position on the left side of the output end of the first water hose (122), and the interior of the propulsion tube (121) is movably sleeved with a second piston plate (123).

9. The water-cooled tool rest for a CNC lathe according to claim 8, characterized in that: One end of the second piston plate (123) away from the first water supply hose (122) is fixedly connected to a second piston rod (124); one end of the second piston rod (124) away from the second piston plate (123) is fixedly connected to a propulsion clamp (127) located at the rear side of the limit rod (103); an outer side surface of the second piston rod (124) is movably sleeved with a limit spring (128); two ends of the limit spring (128) are connected to one end of the second piston plate (123) and one end of the inner cavity of the propulsion tube (121).

10. The water-cooled tool rest for a CNC lathe according to claim 9, characterized in that: A high-pressure nozzle (126) is fixedly connected to the right side of the propulsion clamp (127); an output end of the high-pressure nozzle (126) is located on one side of the tool mounting frame (4); a rear end of the high-pressure nozzle (126) is fixedly connected to a second water hose (125); the other end of the second water hose (125) is connected to the outer side surface of the propulsion tube (121) at a position close to the front end.

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