A tool maintenance device

Abstract

The utility model discloses a maintenance device of quick dismounting and mounting cutter, including vertical milling machine with draw bar, be equipped with maintenance platform on the vertical milling machine, the maintenance platform is located between the main shaft of vertical milling machine and work table, the maintenance platform includes elevating system, be equipped with sliding block on the elevating system, be equipped with first rotary lever on the sliding block, first rotary lever with sliding block articulates, be equipped with second rotary lever on first rotary lever, second rotary lever with first rotary lever articulates, be equipped with rotary body on second rotary lever, be equipped with snap ring on the rotary body. The utility model discloses the purpose solved the difficult problem of tool and tooling in the process of dismounting, installing milling machine cutter in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, and in particular to a maintenance device that allows for quick disassembly and assembly of cutting tools. Background Technology

[0002] When installing a vertical end mill, it is typically fitted into the end cap of a tapered shank sleeve via a spring sleeve. The end mill is then inserted into the fixing port of the spring sleeve, and the tightness of the spring sleeve is adjusted through the threaded connection between the end cap and the tapered shank sleeve. Generally, the higher the end cap is tightened, the tighter the spring sleeve. Due to limited human strength, tools are needed to tighten the end cap during installation to ensure the vertical end mill remains secure during operation. Because of this, when a vertical end mill is damaged and needs replacement, tools are still required to unscrew the end cap before replacement, necessitating readily available tools, making the operation cumbersome and slow. To address this issue, existing technology, Chinese Patent Publication No. CN219520616U, discloses a milling machine that facilitates end mill replacement. It utilizes a hydraulic telescopic rod to move a tapered hollow cylinder downwards and upwards to tighten and loosen the spring sleeve. This allows the spring sleeve to quickly clamp and release the vertical end mill, eliminating the need for additional tools during replacement, simplifying operation, and increasing replacement speed.

[0003] When applying the above-mentioned existing technology, the removed tools are prone to slipping and falling, or they are prone to rolling during the placement process after being removed. Utility Model Content

[0004] The purpose of this invention is to solve the problem of difficulty in mounting the cutting tools and equipment during the disassembly and installation of milling machine tools in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tool-removing and assembling maintenance device includes a vertical milling machine with a drawbar. The vertical milling machine has a maintenance table located between the spindle and the worktable of the vertical milling machine. The maintenance table includes a lifting assembly with a slider. The slider has a first rotating rod hinged to the slider. The first rotating rod has a second rotating rod hinged to the first rotating rod. The second rotating rod has a rotating body with a retaining ring.

[0007] Preferably, the lifting assembly includes a sliding rod, which is vertically arranged on the frame of the vertical milling machine. The sliding rod is sleeved with the slider. The frame is provided with a slide rail, which is located on one side of the sliding rod and connected to the slider.

[0008] Preferably, the sliding rod is provided with a plurality of ratchet teeth, the slider is provided with movable ratchet teeth, the movable ratchet teeth are hinged to the slider, and a torsion spring is provided between the slider and the movable ratchet teeth.

[0009] Preferably, a pneumatic support rod is provided between the first rotating rod and the second rotating rod, the cylinder of the pneumatic support rod is connected to the slot of the first rotating rod, and the piston rod of the pneumatic support rod is hinged to the second rotating rod.

[0010] Preferably, the retaining ring engages with the rotating body.

[0011] Preferably, a first locking block is provided between the retaining ring and the rotating body. The first locking block is annular, and a second locking block is provided inside the first locking block. The second locking block is engaged with the retaining ring. The first locking block is located inside the second rotating rod. A handle is provided outside the first locking block, and one end of the handle extends outside the second rotating rod. A ratchet is provided inside the first locking block. A movable part is provided at the bottom of the second locking block. The movable part is hinged to the second locking block. A spring is provided between the movable part and the second locking block.

[0012] The beneficial effects proposed by this utility model are as follows:

[0013] The maintenance personnel drag the second rotating rod to align the retaining ring with the milling cutter. During this process, the first rotating rod swings synchronously with the rotation of the second rotating rod, allowing the retaining ring to move within the distance between it and the spindle of the vertical milling machine. Next, the retaining ring is engaged with the milling cutter. The maintenance personnel tighten the pull rod of the vertical milling machine with a wrench, and then rotate the retaining ring. Under the action of the rotating body, the retaining ring rotates on the second rotating rod until the milling cutter disengages from the vertical milling machine. Upon disengagement, the milling cutter is caught by the retaining ring, reducing the risk of the milling cutter falling and injuring the worktable of the vertical milling machine or the maintenance personnel. After the milling cutter is disassembled, the slider is moved downward by the lifting assembly, causing the retaining ring to disengage the milling cutter from the spindle area of ​​the vertical milling machine and move it to an open area outside the vertical milling machine. Then, the milling cutter to be replaced is removed from the retaining ring, and a new milling cutter is replaced. The retaining ring is then moved back to the spindle area of ​​the vertical milling machine, and the new milling cutter is aligned with the spindle of the vertical milling machine. Subsequently, the lifting assembly is driven to move the retaining ring upward until the milling cutter is connected to the vertical milling machine. Finally, the pull rod is clamped, and the retaining ring is rotated until the milling cutter is fixed in the spindle of the vertical milling machine, completing the tool replacement of the vertical milling machine.

[0014] Through the above process, the vertical milling machine achieves rapid tool changing, and a tool-supporting structure is provided to effectively reduce the risk of tool drops causing equipment or personnel damage. Furthermore, integrating some tools with the vertical milling machine helps reduce the risk of tools slipping and causing injury to equipment and personnel during maintenance, as this can result from excessive tool placement. Attached Figure Description

[0015] Figure 1 This is a perspective view of a repair device for quick disassembly and assembly of cutting tools proposed in this utility model;

[0016] Figure 2 The present invention proposes a three-dimensional repair table for a repair device that allows for quick assembly and disassembly of cutting tools. Figure 1 ;

[0017] Figure 3 The present invention proposes a three-dimensional repair table for a repair device that allows for quick assembly and disassembly of cutting tools. Figure 2 ;

[0018] Figure 4 This is a schematic diagram showing the connection between the slider and the sliding rod of a repair device for quick disassembly and assembly of cutting tools proposed in this utility model;

[0019] Figure 5 A partial enlarged view A is shown in the schematic diagram of the connection between the slider and the sliding rod of the maintenance device for quick disassembly and assembly of tools proposed in this utility model;

[0020] Figure 6 A perspective view of the movable ratchet of a repair device for quick disassembly and assembly of cutting tools proposed in this utility model;

[0021] Figure 7 A cross-sectional view of the second link of a repair device for quick-assembly and disassembly of tools proposed in this utility model. Figure 1 ;

[0022] Figure 8 A cross-sectional view of the second link of a repair device for quick-assembly and disassembly of tools proposed in this utility model. Figure 2 ;

[0023] Figure 9 A cross-sectional view of the second link of a repair device for quick-assembly and disassembly of tools proposed in this utility model. Figure 2 A magnified view of a portion of the image, shown in Figure B.

[0024] In the diagram: 1. Vertical milling machine; 2. Tie rod; 3. Slider; 4. First rotating rod; 5. Second rotating rod; 6. Rotating body; 7. Snap ring; 8. Sliding rod; 9. Slide rail; 10. Ratchet; 11. Movable ratchet; 12. Torsion spring; 13. Pneumatic support rod; 14. First locking block; 15. Second locking block; 16. Handle; 17. Ratchet; 18. Moving part; 19. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1 to 9A maintenance device for quick tool assembly and disassembly includes a vertical milling machine 1 with a pull rod. The vertical milling machine 1 has a maintenance table located between the spindle and the worktable. The maintenance table includes a lifting assembly with a slider 3. A first rotating rod 4 is hinged to the slider 3. A second rotating rod 5 is hinged to the first rotating rod 4. A rotating body 6 is mounted on the second rotating rod 5, and a retaining ring 7 is mounted on the rotating body 6. Specifically, the maintenance personnel drag the second rotating rod 5 to align the retaining ring 7 with the milling cutter. During this process, the first rotating rod 4 swings synchronously with the rotation of the second rotating rod 5, allowing the retaining ring 7 to move within the distance between it and the spindle of the vertical milling machine 1. Next, the retaining ring 7 is engaged with the milling cutter. The maintenance personnel use a wrench to tighten the pull rod 2 of the vertical milling machine 1, and then rotate the retaining ring 7. Under the action of the rotating body 6, the retaining ring 7 rotates on the second rotating rod 5 until the milling cutter is disengaged from the vertical milling machine 1. When disengaged, the milling cutter is caught by the retaining ring 7, reducing the risk of the milling cutter falling and injuring the worktable of the vertical milling machine 1 or the maintenance personnel. After the milling cutter is disassembled, the lifting assembly moves the slider 3 downwards, causing the retaining ring 7 to disengage the milling cutter from the spindle area of ​​the vertical milling machine 1 and move it to an open area outside the vertical milling machine 1. The milling cutter to be replaced is then removed from the retaining ring 7, and a new milling cutter is installed. The retaining ring 7 is then moved back to the spindle area of ​​the vertical milling machine 1, and the new milling cutter is aligned with the spindle. The lifting assembly is then driven to move the retaining ring 7 upwards until the milling cutter is connected to the vertical milling machine 1. Finally, the pull rod 2 is locked, and the retaining ring 7 is rotated until the milling cutter is fixed in the spindle of the vertical milling machine 1, completing the tool change on the vertical milling machine 1. This process enables rapid tool changing on the vertical milling machine 1, and the tool-supporting structure effectively reduces the risk of tool drops causing equipment or personnel injury. Furthermore, integrating some tools with the vertical milling machine 1 helps reduce the risk of tools slipping and causing injury to equipment and personnel during maintenance due to excessive tool placement.

[0027] Specifically, the lifting assembly includes a sliding rod 8, which is vertically arranged on the frame of the vertical milling machine 1. The slider 3 is fitted onto the sliding rod 8 and slides. A slide rail 9 is provided on the frame, located on one side of the sliding rod 8, and connected to the slider 3. The slider 3 slides on the sliding rod 8, thereby driving the first rotating rod 4 and the second rotating rod 5 to rise and fall on the vertical milling machine 1. Furthermore, the connection between the slider 3 and the slide rail 9 helps to improve the stability of the slider 3 during sliding.

[0028] Specifically, the sliding rod 8 is provided with a ratchet 10, and the slider 3 is provided with a movable ratchet 11. The movable ratchet 11 is hinged to the slider 3, and a torsion spring 12 is provided between the slider 3 and the movable ratchet 11. When the operator adjusts the height of the slider 3, a pushing force is applied to move the slider 3 on the sliding rod 8. During this process, the ratchet 10 drives the movable ratchet 11 to rotate, and at the same time, the movable ratchet 11 compresses the torsion spring 12. Whenever the movable ratchet 11 passes through the tooth groove of the ratchet 10, the torsion spring 12 releases the stored elastic force to drive the movable ratchet 11 to rotate in the opposite direction, so that the movable ratchet 11 engages and locks with the ratchet 10, thereby fixing the slider 3 on the sliding rod 8 and reducing the risk of the slider 3 falling without external force. When it is necessary to disengage the movable ratchet 11 from the ratchet rack 10 and drive the slider 3 downward, an extension block can be provided at one end of the movable ratchet 11. When the extension block is pressed, the movable ratchet 11 flips, disengaging from the ratchet rack 10, thus releasing the engagement and simultaneously applying a thrust to drive the slider 3 downward. In the above process, the ratchet 17 mechanism, formed by the combination of the movable ratchet 11 and the ratchet rack 10, is characterized as a one-way clearance motion mechanism, often used to prevent reverse movement. Therefore, when the downward movement of the slider 3 is restricted, the upward movement of the slider 3 is unrestricted. The working principle of the ratchet 17 mechanism is a commonly used technique in this field and will not be described in detail here.

[0029] Specifically, a pneumatic support rod 13 is provided between the first rotating rod 4 and the second rotating rod 5. The cylinder of the pneumatic support rod 13 is connected to the slot of the first rotating rod 4, and the piston rod of the pneumatic support rod 13 is hinged to the second rotating rod 5. When the second rotating rod 5 rotates relative to the first rotating rod 4, the second rotating rod 5 drives the piston rod of the pneumatic support rod 13 to extend. During the extension of the piston rod of the pneumatic support rod 13, as the rotation angle of the second connecting rod relative to the first connecting rod changes, the piston rod of the pneumatic support rod 13 will pull the cylinder of the pneumatic support rod 13 to slide and swing within the slot of the first connecting rod. This helps to increase the range of motion of the pneumatic support rod 13. After the pneumatic support rod 13 connects the first rotating rod 4 and the second connecting rod, it can limit the movement of the second connecting rod, reducing the risk of the second connecting rod injuring maintenance personnel or surrounding equipment due to excessive rotation. Furthermore, it also helps to limit and fix the first and second connecting rods when they are stored.

[0030] Specifically, the retaining ring 7 engages with the rotating body 6. The retaining ring 7 is an auxiliary tool for removing the milling cutter from the spindle. The engagement of the retaining ring 7 with the rotating body 6 allows for the customization of the retaining ring 7 to accommodate the removal and installation of milling cutters of different sizes.

[0031] Specifically, a first locking block 14 is provided between the retaining ring 7 and the rotating body 6. The first locking block 14 is annular, and a second locking block 15 is provided inside the first locking block 14. The second locking block 15 is engaged with the retaining ring 7. The first locking block 14 is located inside the second rotating rod 5. A handle 16 is provided outside the first locking block 14. One end of the handle 16 extends outside the second rotating rod 5. A ratchet 17 is provided inside the first locking block 14. A movable part 18 is provided at the bottom of the second locking block 15. The movable part 18 is hinged to the second locking block 15. A spring piece 19 is provided between the movable part 18 and the second locking block 15. When the operator holds the handle 16 and drives the first locking block 14 to rotate in one direction, the ratchet 17 engages with the movable part 18, causing the first locking block 14 and the second locking block 15 to rotate in the same direction, and driving the retaining ring 7 to rotate in the same direction. When the first locking block 14 rotates in the opposite direction, the ratchet 17 disengages from the movable part 18, continuously pushing the movable part 18 to flip and compress the spring piece 19 during rotation. At this time, the second locking block 15 and the retaining ring 7 are stationary relative to the first locking block 14. In this way, the first locking block 14 is equivalent to a wrench that can be applied to the second locking block 15, which is beneficial for maintenance personnel to drive the retaining ring 7 to install and remove the milling cutter.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A maintenance device for quick tool assembly and disassembly, comprising a vertical milling machine with a drawbar, characterized in that: The vertical milling machine is provided with a maintenance table, which is located between the spindle and the worktable of the vertical milling machine. The maintenance table includes a lifting assembly, a slider on the lifting assembly, a first rotating rod on the slider, the first rotating rod being hinged to the slider, a second rotating rod on the first rotating rod, the second rotating rod being hinged to the first rotating rod, a rotating body on the second rotating rod, and a retaining ring on the rotating body.

2. The repair device for quick disassembly and assembly of cutting tools according to claim 1, characterized in that: The lifting assembly includes a sliding rod, which is vertically arranged on the frame of the vertical milling machine. The sliding rod is sleeved with the slider. The frame is provided with a slide rail, which is located on one side of the sliding rod and connected to the slider.

3. The repair device for quick disassembly and assembly of cutting tools according to claim 2, characterized in that: The sliding rod is provided with a plurality of ratchet teeth, the slider is provided with movable ratchet teeth, the movable ratchet teeth are hinged to the slider, and a torsion spring is provided between the slider and the movable ratchet teeth.

4. The repair device for quick disassembly and assembly of cutting tools according to claim 3, characterized in that: A pneumatic support rod is provided between the first rotating rod and the second rotating rod. The cylinder of the pneumatic support rod is connected to the slot of the first rotating rod, and the piston rod of the pneumatic support rod is hinged to the second rotating rod.

5. The repair device for quick disassembly and assembly of cutting tools according to claim 4, characterized in that: The retaining ring engages with the rotating body.

6. The repair device for quick disassembly and assembly of cutting tools according to claim 5, characterized in that: A first locking block is provided between the retaining ring and the rotating body. The first locking block is annular, and a second locking block is provided inside the first locking block. The second locking block is engaged with the retaining ring. The first locking block is located inside the second rotating rod. A handle is provided outside the first locking block, and one end of the handle extends outside the second rotating rod. A ratchet is provided inside the first locking block. A movable part is provided at the bottom of the second locking block. The movable part is hinged to the second locking block. A spring is provided between the movable part and the second locking block.

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