Metal knife rest milling machine with flexible tool holder changing structure

Abstract

The present application relates to the technical field of milling machine tool rest, and discloses a metal tool rest milling machine with flexible tooling fixture changing structure, which comprises a workbench and supporting legs, the supporting legs are arranged at the bottom of the workbench and are fixedly connected with the workbench, further comprises a supporting frame, the supporting frame is arranged at the top of the workbench and is fixedly connected with the workbench, and a walking mechanism is fixedly connected to the top of the supporting frame; a milling device is arranged on the walking mechanism, and the walking mechanism can drive the milling device to move in the horizontal direction; the milling device comprises a hydraulic push rod, a fixed end side surface of the hydraulic push rod is fixedly connected with a fixed frame, an active end of the hydraulic push rod is fixedly connected with a tool changing push rod, and an active end of the tool changing push rod is fixedly connected with a driving motor. The metal tool rest milling machine with flexible tooling fixture changing structure is simple to replace, has fewer operation steps, has high tool changing efficiency, and is convenient to adapt to the high-efficiency production requirements of industrial processing.

Description

Technical Field

[0001] This invention relates to the field of milling machine tool post technology, specifically to a metal tool post milling machine equipped with a flexible tooling fixture changing structure. Background Technology

[0002] A milling machine is a machine tool that uses a milling cutter to machine various surfaces of a workpiece. The rotation of the milling cutter is the primary motion, while the movement of the workpiece and the cutter constitutes the feed motion. It can machine planes, grooves, various curved surfaces, gears, etc. Milling machines are machine tools that use milling cutters to mill workpieces. Besides milling planes, grooves, gear teeth, threads, and splined shafts, milling machines can also machine relatively complex profiles. They are more efficient than planers and are widely used in mechanical manufacturing and repair departments. The tool post on a CNC machine tool is an important component for holding the cutting tool. Many tool posts also directly participate in the cutting process, such as the square tool post on a horizontal lathe, the turret tool post on a turret lathe, the return wheel tool post on a return wheel turret lathe, the turret tool post and balance tool post on an automatic lathe, etc. These tool posts not only hold the cutting tool but also directly participate in the cutting process, bearing extremely high cutting forces. Therefore, they often become the weakest link in the process system.

[0003] Currently, the tool holders used in milling machines typically involve cumbersome tool changing steps during automatic tool changing, resulting in low tool changing efficiency and affecting machining efficiency. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a metal tool post milling machine equipped with a flexible tooling fixture changing structure, comprising a worktable and legs, wherein the legs are disposed at the bottom of the worktable and fixedly connected to the worktable, and further comprising:

[0005] A support frame is mounted on top of the workbench and fixedly connected to the workbench, and a traveling mechanism is fixedly connected to the top of the support frame.

[0006] A milling device, which is mounted on a traveling mechanism, the traveling mechanism being able to drive the milling device to move in the horizontal direction;

[0007] The milling device includes a hydraulic push rod, a fixed frame is fixedly connected to the side of the fixed end of the hydraulic push rod, a tool change push rod is fixedly connected to the movable end of the hydraulic push rod, a drive motor is fixedly connected to the movable end of the tool change push rod, a tool head seat is fixedly connected to the drive shaft of the drive motor, and a tool holder device is sleeved and fixedly connected to the movable end of the hydraulic push rod.

[0008] Preferably, the tool holder device includes a positioning frame, a tool disc is fixedly connected to the bottom of the positioning frame, a rotating groove is fixedly connected to the bottom of the tool disc, a rotating support is fixedly connected to the inner wall of the rotating groove, a rotating motor is fixedly connected to the side of the rotating support, the drive shaft of the rotating motor passes through the rotating support and is fixedly connected to a flipping frame, and a tool storage frame is fixedly connected to one end of the flipping frame. When changing tools, it is only necessary to rotate the flipping frame by rotating the rotating motor. The tool changing operation is simple, the operation steps are few, the tool changing efficiency is high, and it is convenient to adapt to the high-efficiency production requirements of industrial processing.

[0009] Preferably, the positioning frame is sleeved on the movable end of the hydraulic push rod and fixedly connected to the hydraulic push rod, and the rotating groove is provided in multiple sets and evenly distributed on the cutter head.

[0010] Preferably, the tool holder includes a connecting frame, a C-shaped frame is fixedly connected to one side of the connecting frame, a fixing airbag is fixedly connected to the inner wall of the C-shaped frame, a fixing plate is fixedly connected to the inner wall of the fixing airbag, and a telescopic rod is fixedly connected to the side of the fixing plate away from the inner wall of the fixing airbag. The C-shaped frame is equipped with a tool head. The flexible clamping structure can avoid the clamping structure inside the tool holder from causing wear on the tool surface, and avoid the situation of easy loosening and falling off due to wear. At the same time, the clamping radius of the fixing airbag can be changed by inflating and deflating the fixing airbag, thereby adapting to the use of tools of different sizes, so that the equipment has good adaptability for mixed use.

[0011] Preferably, the side of the connecting frame away from the C-shaped frame is fixedly connected to the flipping frame, and the end of the telescopic rod away from the fixing plate is fixedly connected to the inner wall of the fixing airbag.

[0012] Preferably, multiple sets of telescopic rods and fixing plates are provided and correspond one-to-one, and a fixing slot adapted to the C-shaped frame is provided on the side of the cutter head.

[0013] Preferably, the cutter head holder includes a base with a mounting groove at the bottom. A telescopic push rod is fixedly connected to the top of the inner wall of the mounting groove, and a sliding ring is fixedly connected to the bottom of the telescopic push rod via a bracket. A groove is provided on the side of the inner wall of the mounting groove, and a pressing plate is rotatably connected to the inner wall of the groove. A fixing protrusion is fixedly connected to the inner wall of the pressing plate, and a limit ring is fixedly connected to the inner wall of the mounting groove. The fixing operation is simple and the fixing speed is fast. When frequent replacement causes wear on the clamping groove, resulting in easy loosening of the clamping, the cutter head can be rotated to allow the clamping grooves at other positions on the cutter head to cooperate with the fixing protrusion, so that the cutter head can always maintain a good clamping and fixing effect, avoiding wear and loosening that affects the processing effect.

[0014] Preferably, the top of the base is fixedly connected to the drive shaft of the drive motor, and the top of the extrusion plate extends into the sliding ring and is slidably connected to the inner wall of the sliding ring.

[0015] Preferably, the grooves are provided in multiple sets and are evenly distributed inside the mounting groove, and the side of the cutter head is provided with a clamping groove that matches the fixing protrusion. The number of clamping grooves is three times the number of grooves.

[0016] This invention provides a metal tool post milling machine equipped with a flexible tooling fixture changing structure. It has the following features:

[0017] Beneficial effects:

[0018] 1. This metal tool holder milling machine, equipped with a flexible tooling fixture changing structure, allows for tool installation. When installing a tool, the rotating motor drives the tilting frame to rotate, which in turn drives the tool storage frame to rotate, tilting the tool storage frame directly below the tool head holder. The tool change push rod drives the drive motor to descend, which in turn drives the tool head holder to descend. During this descent, the tool head holder is fitted onto the tool inside the tool storage frame, clamping it in place. Then, the tool change push rod drives the tool head holder to rise, pulling the tool out of the tool storage frame. The drive motor then reverses, causing the tilting frame and tool storage frame to tilt back to their original positions. A hydraulic push rod then drives the tool change push rod to descend, which in turn drives the drive motor and tool head holder to descend. The drive motor then rotates the tool head holder and the tool inside, allowing for milling of the workpiece. Tool replacement is simple, requiring only the rotation of the motor to tilt the frame. This operation is straightforward, with fewer steps and high tool changing efficiency, making it well-suited for the high-efficiency production requirements of industrial machining.

[0019] 2. This metal tool holder milling machine, equipped with a flexible tooling fixture changing structure, features a tool holder. When the tool holder is rotated to directly below the tool head holder, the tool head holder descends and fits onto the tool head, clamping it in place. Then, the tool head holder rises, causing the tool head to rise as well, allowing it to be pulled out of the C-frame, thus completing the tool changing process. Because the C-frame contains a fixing airbag, which directly contacts the tool, the flexible clamping structure prevents wear on the tool surface caused by the internal clamping structure of the tool holder, avoiding loosening and detachment due to wear. Furthermore, the clamping radius of the fixing airbag can be changed by inflating and deflating it, thus accommodating tools of different sizes and ensuring good adaptability for mixed use.

[0020] 3. This metal tool holder milling machine, equipped with a flexible tooling fixture changing structure, features a tool head holder. During use, the tool change push rod drives the drive motor and base to descend. The base fits onto the tool head, and the top of the tool head inserts into the mounting groove and abuts against the limit ring. Then, the telescopic push rod extends, causing the sliding ring to move downwards. Simultaneously, the sliding ring pushes the extrusion plate to rotate, which in turn causes the fixing protrusion to rotate, pressing it into the clamping groove on the side of the tool head. The tool head is clamped in the mounting groove through the cooperation of the fixing protrusion and the clamping groove, thus completing the tool head fixing operation. The fixing operation is simple and fast.

[0021] 4. This metal tool holder milling machine is equipped with a flexible tooling fixture changing structure. The number of clamping slots is three times the number of grooves. When frequent changes cause wear on the clamping slots, making the clamping easy to loosen, the tool head can be rotated so that the clamping slots at other positions on the tool head can cooperate with the fixed protrusions, so that the tool head can always maintain a good clamping and fixing effect, avoiding wear and loosening that affects the processing effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a metal tool post milling machine structure equipped with a flexible tooling fixture changing structure according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0024] Figure 3 This is a schematic diagram of the top structure of the milling device of the present invention;

[0025] Figure 4 This is a schematic diagram of the bottom structure of the milling device of the present invention;

[0026] Figure 5 This is a schematic diagram of the tool holder device of the present invention;

[0027] Figure 6 This is a schematic diagram of the tool holder structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the fixed airbag of the present invention;

[0029] Figure 8 This is a schematic diagram of the cutter head holder structure of the present invention.

[0030] In the diagram: 1. Workbench; 2. Support leg; 3. Support frame; 4. Traveling mechanism; 5. Milling device; 51. Hydraulic push rod; 52. Fixed frame; 53. Tool change push rod; 54. Drive motor; 55. Tool head holder; 551. Base; 552. Mounting slot; 553. Telescopic push rod; 554. Sliding ring; 555. Groove; 556. Extrusion plate; 557. Fixed protrusion; 558. Limiting ring; 56. Tool holder device; 561. Positioning frame; 562. Tool disc; 564. Rotating slot; 565. Rotating support; 566. Rotating motor; 567. Tilting frame; 568. Tool holder; 5681. Connecting frame; 5682. C-shaped frame; 5683. Fixed airbag; 5684. Fixed plate; 5685. Telescopic rod; 5686. Tool head. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-5 The present invention provides a technical solution: a metal tool post milling machine equipped with a flexible tooling fixture changing structure, including a worktable 1 and a support leg 2, the support leg 2 being disposed at the bottom of the worktable 1 and fixedly connected to the worktable 1, and further comprising:

[0033] Support frame 3 is set on the top of workbench 1 and fixedly connected to workbench 1. A walking mechanism 4 is fixedly connected to the top of support frame 3.

[0034] Milling device 5, which is mounted on traveling mechanism 4, and traveling mechanism 4 can drive milling device 5 to move in the horizontal direction;

[0035] The milling device 5 includes a hydraulic push rod 51, a fixed frame 52 is fixedly connected to the side of the fixed end of the hydraulic push rod 51, a tool changing push rod 53 is fixedly connected to the movable end of the hydraulic push rod 51, a drive motor 54 is fixedly connected to the movable end of the tool changing push rod 53, a tool head seat 55 is fixedly connected to the drive shaft of the drive motor 54, and a tool holder device 56 is sleeved and fixedly connected to the movable end of the hydraulic push rod 51.

[0036] The tool holder device 56 includes a positioning frame 561, a tool disc 562 fixedly connected to the bottom of the positioning frame 561, a rotating groove 564 fixedly connected to the bottom of the tool disc 562, a rotating support 565 fixedly connected to the inner wall of the rotating groove 564, a rotating motor 566 fixedly connected to the side of the rotating support 565, a drive shaft of the rotating motor 566 passing through the rotating support 565 and fixedly connected to a flipping frame 567, a tool storage holder 568 fixedly connected to one end of the flipping frame 567, the positioning frame 561 being sleeved on the movable end of the hydraulic push rod 51 and fixedly connected to the hydraulic push rod 51, and multiple sets of rotating grooves 564 being evenly distributed on the tool disc 562;

[0037] When installing the cutting tool, the rotating motor 566 drives the tilting frame 567 to rotate, which in turn drives the tool storage frame 568 to rotate, tilting the tool storage frame 568 directly below the tool holder 55. The tool change push rod 53 drives the drive motor 54 to descend, which in turn drives the tool holder 55 to descend. During the descent, the tool holder 55 is fitted onto the cutting tool inside the tool storage frame 568, clamping the tool in place. Then, the tool change push rod 53 drives the tool holder 55 to rise, and the tool holder 55 pulls the cutting tool out of the tool storage frame 568. Then, the drive motor... The reverse rotation of 54 drives the tilting frame 567 and the tool holder 568 to tilt and reset. Then, the hydraulic push rod 51 drives the tool changing push rod 53 to descend. The tool changing push rod 53 drives the drive motor 54 and the tool head holder 55 to descend. Then, the drive motor 54 drives the tool head holder 55 and the tool inside the tool head holder 55 to rotate, so that the workpiece can be milled. When changing the tool, it is only necessary to rotate the tilting frame 567 by rotating the motor 566. The tool changing operation is simple, with fewer operation steps and high tool changing efficiency, which can easily meet the high-efficiency production requirements of industrial processing.

[0038] Please see Figures 1-7 The present invention provides a technical solution: the knife holder 568 includes a connecting frame 5681, a C-shaped frame 5682 is fixedly connected to one side of the connecting frame 5681, a fixing airbag 5683 is fixedly connected to the inner wall of the C-shaped frame 5682, a fixing plate 5684 is fixedly connected to the inner wall of the fixing airbag 5683, a telescopic rod 5685 is fixedly connected to the side of the fixing plate 5684 away from the inner wall of the fixing airbag 5683, a knife head 5686 is provided inside the C-shaped frame 5682, the side of the connecting frame 5681 away from the C-shaped frame 5682 is fixedly connected to the flipping frame 567, the end of the telescopic rod 5685 away from the fixing plate 5684 is fixedly connected to the inner wall of the fixing airbag 5683, multiple sets of telescopic rods 5685 and fixing plates 5684 are provided and correspond one to one, and a fixing slot adapted to the C-shaped frame 5682 is opened on the side of the knife head 5686;

[0039] A tool holder 568 is provided. When the tool holder 568 is flipped to be directly below the tool head holder 55, the tool head holder 55 descends and fits onto the tool head 5686, clamping the tool head 5686. Then, the tool head holder 55 rises, causing the tool head 5686 to rise as well. The tool head 5686 is then pulled out from the C-shaped frame 5682, completing the tool change. Since the C-shaped frame 5682 has a fixing airbag 5683 inside, the fixing airbag 5683 directly contacts the tool. The flexible clamping structure can prevent the clamping structure inside the tool holder 568 from causing wear on the tool surface, avoiding the situation of easy loosening and falling off due to wear. At the same time, the clamping radius of the fixing airbag 5683 can be changed by inflating and deflating the fixing airbag 5683, thereby adapting to the use of tools of different sizes, making the equipment more adaptable to mixed use.

[0040] Please see Figures 1-8 The present invention provides a technical solution: the cutter head holder 55 includes a base 551, the bottom of the base 551 is provided with an installation groove 552, the top of the inner wall of the installation groove 552 is fixedly connected to a telescopic top rod 553, the bottom of the telescopic top rod 553 is fixedly connected to a sliding ring 554 through a bracket, the side of the inner wall of the installation groove 552 is provided with a groove 555, the inner wall of the groove 555 is rotatably connected to an extrusion plate 556, the inner wall of the extrusion plate 556 is fixedly connected to a fixing protrusion 557, the inner wall of the installation groove 552 is fixedly connected to a limit ring 558, the top of the base 551 is fixedly connected to the drive shaft of the drive motor 54, the top of the extrusion plate 556 extends into the interior of the sliding ring 554 and slides in connection with the inner wall of the sliding ring 554, multiple sets of grooves 555 are provided and evenly distributed inside the installation groove 552, and the side of the cutter head 5686 is provided with a clamping groove that matches the fixing protrusion 557, the number of clamping grooves is three times the number of grooves 555;

[0041] A cutter head holder 55 is provided. During use, the cutter change push rod 53 drives the drive motor 54 and the base 551 to descend. The base 551 is fitted onto the cutter head 5686, and the top of the cutter head 5686 is inserted into the mounting groove 552 and abuts against the limit ring 558. Then, the telescopic push rod 553 extends, causing the sliding ring 554 to move downward. As the sliding ring 554 moves downward, it pushes the extrusion plate 556 to rotate. The extrusion plate 556 drives the fixing protrusion 557 to rotate and presses the fixing protrusion 557 into the clamping groove on the side of the cutter head 5686. The engagement of block 557 with the clamping groove clamps the cutter head 5686 inside the mounting groove 552, thus fixing the cutter head 5686. The fixing operation is simple and fast. Furthermore, the number of clamping grooves is three times the number of recesses 555. When frequent replacement causes wear on the clamping grooves, making the clamping easy to loosen, the cutter head 5686 can be rotated to allow the clamping grooves at other positions on the cutter head 5686 to engage with the fixing protrusion 557. This ensures that the cutter head 5686 can always maintain a good clamping and fixing effect, avoiding wear and loosening that could affect the machining effect.

[0042] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A metal tool post milling machine equipped with a flexible tooling fixture changing structure, comprising a worktable (1) and a support leg (2), wherein the support leg (2) is disposed at the bottom of the worktable (1) and fixedly connected to the worktable (1), characterized in that, Also includes: A support frame (3) is set on the top of the workbench (1) and fixedly connected to the workbench (1). A walking mechanism (4) is fixedly connected to the top of the support frame (3). A milling device (5) is mounted on a traveling mechanism (4), which is capable of driving the milling device (5) to move horizontally. The milling device (5) includes a hydraulic push rod (51), a fixed frame (52) is fixedly connected to the side of the fixed end of the hydraulic push rod (51), a tool changing push rod (53) is fixedly connected to the movable end of the hydraulic push rod (51), a drive motor (54) is fixedly connected to the movable end of the tool changing push rod (53), a tool head holder (55) is fixedly connected to the drive shaft of the drive motor (54), and a tool holder device (56) is sleeved and fixedly connected to the movable end of the hydraulic push rod (51). The tool holder device (56) includes a positioning frame (561), a tool disc (562) is fixedly connected to the bottom of the positioning frame (561), a rotating groove (564) is fixedly connected to the bottom of the tool disc (562), a rotating support (565) is fixedly connected to the inner wall of the rotating groove (564), a rotating motor (566) is fixedly connected to the side of the rotating support (565), the drive shaft of the rotating motor (566) passes through the rotating support (565) and is fixedly connected to a flipping frame (567), a tool storage frame (568) is fixedly connected to one end of the flipping frame (567), the tool storage frame (568) includes a connecting frame (5681), a C-shaped frame (5682) is fixedly connected to one side of the connecting frame (5681), a fixing airbag (5683) is fixedly connected to the inner wall of the C-shaped frame (5682), and the inner wall of the fixing airbag (5683) is fixedly connected to the inner wall of the C-shaped frame (5682). A fixing plate (5684) is fixedly connected. A telescopic rod (5685) is fixedly connected to the side of the fixing plate (5684) away from the inner wall of the fixing airbag (5683). A cutter head (5686) is provided inside the C-shaped frame (5682). The cutter head seat (55) includes a base (551). An installation groove (552) is opened at the bottom of the base (551). A telescopic top rod (553) is fixedly connected to the top of the inner wall of the installation groove (552). A sliding ring (554) is fixedly connected to the bottom of the telescopic top rod (553) through a bracket. A groove (555) is opened on the side of the inner wall of the installation groove (552). An extrusion plate (556) is rotatably connected to the inner wall of the groove (555). A fixing protrusion (557) is fixedly connected to the inner wall of the extrusion plate (556). A limit ring (558) is fixedly connected to the inner wall of the installation groove (552).

2. A metal tool post milling machine equipped with a flexible tooling fixture changing structure according to claim 1, characterized in that: The positioning frame (561) is sleeved on the movable end of the hydraulic push rod (51) and fixedly connected to the hydraulic push rod (51). The rotating groove (564) is provided in multiple sets and is evenly distributed on the cutter head (562).

3. A metal tool post milling machine equipped with a flexible tooling fixture changing structure according to claim 1, characterized in that: The side of the connecting frame (5681) away from the C-frame (5682) is fixedly connected to the flipping frame (567), and the end of the telescopic rod (5685) away from the fixing plate (5684) is fixedly connected to the inner wall of the fixing airbag (5683).

4. A metal tool post milling machine equipped with a flexible tooling fixture changing structure according to claim 1, characterized in that: The telescopic rod (5685) and the fixing plate (5684) are provided in multiple sets and correspond one to one. The cutting head (5686) has a fixing slot on its side that is compatible with the C-shaped frame (5682).

5. A metal tool post milling machine equipped with a flexible tooling fixture changing structure according to claim 1, characterized in that: The top of the base (551) is fixedly connected to the drive shaft of the drive motor (54), and the top of the extrusion plate (556) extends into the sliding ring (554) and is slidably connected to the inner wall of the sliding ring (554).

6. A metal tool post milling machine equipped with a flexible tooling fixture changing structure according to claim 1, characterized in that: The grooves (555) are provided in multiple sets and are evenly distributed inside the mounting groove (552). The side of the cutter head (5686) is provided with a clamping groove that matches the fixing protrusion (557). The number of clamping grooves is three times the number of grooves (555).

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