Metal tool rest milling machine with flexible tool clamp reloading structure

Abstract

The invention relates to the technical field of milling machine tool rests, and discloses a metal tool rest milling machine with a flexible tool clamp reloading structure, which comprises a working table and supporting legs arranged at the bottom of the working table and fixedly connected with the working table, and further comprises a supporting frame arranged at the top of the working table and fixedly connected with the working table, the top of the supporting frame is fixedly connected with a walking mechanism. The milling device is arranged on the walking mechanism, and the walking mechanism can drive the milling device to move in the horizontal direction; and the milling device comprises a hydraulic push rod, the side face of the fixed end of the hydraulic push rod is fixedly connected with a fixing frame, the movable end of the hydraulic push rod is fixedly connected with a tool changing push rod, and the movable end of the tool changing push rod is fixedly connected with a driving motor. The metal tool rest milling machine provided with the flexible tool clamp reloading structure is simple in replacement operation, few in operation steps, high in tool replacement efficiency and convenient to adapt to the high-efficiency production requirement of industrial machining.

Description

Technical Field

[0001] The invention relates to the technical field of milling machine tool holders, in particular to a metal tool holder milling machine equipped with a flexible tool fixture replacement structure. Background Art

[0002] Milling machines mainly refer to machine tools that use milling cutters to process various surfaces of workpieces. Usually, the main motion is the rotation of the milling cutter, and the movement of the workpiece and the milling cutter is the feed motion. It can process planes, grooves, various curved surfaces, gears, etc. Milling machines are machine tools that use milling cutters to mill workpieces. In addition to milling planes, grooves, gear teeth, threads and spline shafts, milling machines can also process more complex surfaces. Their efficiency is higher than that of planers and they are widely used in mechanical manufacturing and repair departments. The tool holder on CNC machine tools is an important component for placing tools, and many tool holders are also directly involved in cutting work, such as the square tool holder on the horizontal lathe, the turret tool holder of the turret lathe, the return wheel tool holder of the return wheel turret lathe, the turret tool holder and the balance tool holder of the automatic lathe, etc. These tool holders not only place tools, but also directly participate in cutting, and bear great cutting forces, so they often become the weaker links in the process system.

[0003] The tool holder currently used in milling machines usually has complicated tool changing steps during the automatic tool changing process, resulting in low tool changing efficiency and affecting processing efficiency. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A metal tool holder milling machine equipped with a flexible fixture replacement structure, comprising a workbench and legs, wherein the legs are arranged at the bottom of the workbench and fixedly connected to the workbench, and further comprising:

[0005] A support frame, which is arranged on the top of the workbench and fixedly connected to the workbench, and a walking mechanism is fixedly connected to the top of the support frame;

[0006] A milling device, which is arranged on a traveling mechanism, and the traveling mechanism can drive the milling device to move in a 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 changing push rod is fixedly connected to the movable end of the hydraulic push rod, a driving motor is fixedly connected to the movable end of the tool changing push rod, a tool head seat is fixedly connected to the driving shaft of the driving 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, a driving shaft of the rotating motor passes through the rotating support and is fixedly connected to a flip frame, and a tool storage frame is fixedly connected to one end of the flip frame. When replacing the tool, it is only necessary to drive the flip frame to flip by the rotating motor. The replacement operation is simple, the operating steps are less, 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 grooves are provided in multiple groups and are evenly distributed on the cutter disc.

[0010] Preferably, the tool storage rack includes a connecting rack, one side of the connecting rack is fixedly connected to a C-shaped rack, the inner wall of the C-shaped rack is fixedly connected to a fixed airbag, the inner wall of the fixed airbag is fixedly connected to a fixed sheet, the side of the fixed sheet away from the inner wall of the fixed airbag is fixedly connected to a telescopic rod, a tool head is arranged inside the C-shaped rack, and a flexible clamping structure can prevent the clamping structure inside the tool holder from wearing the tool surface and preventing the tool from loosening and falling off due to wear. At the same time, the clamping radius of the fixed airbag can be changed by inflating and deflating the fixed airbag, so as to adapt to the use of tools of different sizes, thereby making the equipment more adaptable for mixed use.

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

[0012] Preferably, the telescopic rods and the fixing plates are provided in multiple groups 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 seat includes a base, a mounting groove is provided at the bottom of the base, a telescopic push rod is fixedly connected to the top of the inner wall of the mounting groove, a sliding ring is fixedly connected to the bottom of the telescopic push rod through a bracket, a groove is provided on the side of the inner wall of the mounting groove, an extrusion plate is rotatably connected to the inner wall of the groove, a fixing protrusion is fixedly connected to the inner wall of the extrusion plate, and a limiting ring is fixedly connected to the inner wall of the mounting groove. The fixing operation is simple and the fixing speed is fast. When the clamping groove is worn due to frequent replacement, which makes the clamping easy to loosen, the cutter head can be rotated so that the clamping grooves at other positions on the cutter head cooperate with the fixing protrusions, so that the cutter head can always maintain a good clamping and fixing effect to avoid wear and loosening affecting the processing effect.

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

[0015] Preferably, the grooves are provided in multiple groups and are evenly distributed inside the mounting groove, and the side surface of the cutter head is provided with clamping grooves matched with the fixing protrusions, and the number of the clamping grooves is three times the number of the grooves.

[0016] The present invention provides a metal tool holder milling machine with a flexible fixture replacement structure.

[0017] Beneficial effects:

[0018] 1. The metal tool holder milling machine equipped with a flexible tool fixture replacement structure, when installing the tool, the rotating motor drives the flip frame to rotate, the flip frame drives the storage tool holder to rotate, and the storage tool holder is flipped to the bottom of the tool head seat, the tool changing push rod drives the driving motor to descend, and the driving motor drives the tool head seat to descend. During the descent of the tool head seat, it is sleeved on the tool inside the storage tool holder, and the tool is clamped by the tool head seat. Then the tool changing push rod drives the tool head seat to rise, and the tool head seat pulls the tool out of the tool holder, and then the driving motor reverses to drive the flip frame and the storage tool holder to flip and reset, and the tool changing push rod can be driven to descend by the hydraulic push rod, and the tool changing push rod drives the driving motor and the tool head seat to descend, and then the driving motor drives the tool head seat and the tool inside the tool head seat to rotate, and the workpiece can be milled. When changing the tool, it only needs to drive the flip frame to flip by rotating the motor. The replacement operation is simple, the operation steps are less, the tool changing efficiency is high, and it is convenient to adapt to the high-efficiency production requirements of industrial processing.

[0019] 2. The metal tool holder milling machine equipped with a flexible tool fixture replacement structure is provided with a tool storage holder. When the tool storage holder is flipped to the bottom of the tool head seat, the tool head seat descends and is put on the tool head, and the tool head is clamped by the tool head seat. Then the tool head seat rises, driving the tool head to rise. The tool head is pulled out of the C-type frame to complete the tool replacement. Since a fixed air bag is provided inside the C-type frame, the fixed air bag is in direct contact with the tool. The flexible clamping structure can prevent the clamping structure inside the tool storage holder from causing wear on the tool surface and avoid easy loosening and falling off due to wear. At the same time, the clamping radius of the fixed air bag can be changed by inflating and deflating the fixed air bag, so as to adapt to the use of tools of different sizes, so that the equipment has better adaptability for mixed use.

[0020] 3. The metal tool holder milling machine equipped with a flexible fixture replacement structure is provided with a tool head seat. When in use, the tool changing push rod drives the driving motor and the base to descend, the base is sleeved on the tool head, the top of the tool head is inserted into the installation groove, and rests on the limit ring, and then the telescopic push rod is extended to drive the sliding ring to move downward, and the sliding ring pushes the extrusion plate to rotate while moving downward, and the extrusion plate drives the fixed protrusion to rotate, and presses the fixed protrusion into the clamping groove on the side of the tool head. The tool head is clamped in the installation groove by the cooperation of the fixed protrusion and the clamping groove, so that the tool head can be fixed. The fixing operation is simple and the fixing speed is fast.

[0021] 4. The metal tool holder milling machine equipped with a flexible fixture replacement structure has three times the number of clamping grooves as the number of grooves. When frequent replacement causes the clamping grooves to wear and the clamping is easy to loosen, the cutter head can be rotated so that the clamping grooves at other positions on the cutter head cooperate with the fixed protrusions, so that the cutter head can always maintain a good clamping and fixing effect, avoiding wear and loosening that affects the processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a metal tool holder milling machine equipped with a flexible fixture replacement structure of 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 It is a schematic diagram of the top structure of the milling device of the present invention;

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

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

[0027] Figure 6 It 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 It is a schematic diagram of the structure of the cutter head seat of the present invention.

[0030] In the figure: 1. workbench; 2. outrigger; 3. support frame; 4. walking mechanism; 5. milling device; 51. hydraulic push rod; 52. fixed frame; 53. tool change push rod; 54. driving motor; 55. cutter head seat; 551. base; 552. mounting groove; 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. cutter disc; 564. rotating groove; 565. rotating support; 566. rotating motor; 567. flip frame; 568. tool holder; 5681. connecting frame; 5682. C-shaped frame; 5683. fixed airbag; 5684. fixing plate; 5685. telescopic rod; 5686. cutter head. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 5 The present invention provides a technical solution: a metal tool holder milling machine equipped with a flexible fixture replacement structure, comprising a workbench 1 and a leg 2, wherein the leg 2 is arranged at the bottom of the workbench 1 and is fixedly connected to the workbench 1, and further comprising:

[0033] A support frame 3, which is arranged on the top of the workbench 1 and fixedly connected to the workbench 1, and a walking mechanism 4 is fixedly connected to the top of the support frame 3;

[0034] A milling device 5, which is arranged on a traveling mechanism 4, and the traveling mechanism 4 can drive the milling device 5 to move in a 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 change push rod 53 is fixedly connected to the movable end of the hydraulic push rod 51, a driving motor 54 is fixedly connected to the movable end of the tool change push rod 53, a tool head seat 55 is fixedly connected to the driving shaft of the driving motor 54, and a tool holder device 56 is sleeved and fixedly connected on the movable end of the hydraulic push rod 51;

[0036] The tool holder device 56 includes a positioning frame 561, a knife 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 knife 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, a driving shaft of the rotating motor 566 passes through the rotating support 565 and is fixedly connected to a flip frame 567, one end of the flip frame 567 is fixedly connected to a knife storage frame 568, the positioning frame 561 is sleeved on the movable end of the hydraulic push rod 51 and is fixedly connected to the hydraulic push rod 51, and a plurality of rotating grooves 564 are provided and are evenly distributed on the knife disc 562;

[0037] When installing the tool, the rotating motor 566 drives the flip frame 567 to rotate, and the flip frame 567 drives the tool storage frame 568 to rotate, and the tool storage frame 568 is flipped to the bottom of the tool head seat 55, and the tool changing push rod 53 drives the driving motor 54 to descend, and the driving motor 54 drives the tool head seat 55 to descend. During the descent of the tool head seat 55, it is sleeved on the tool inside the tool storage frame 568, and the tool is clamped by the tool head seat 55. Then the tool changing push rod 53 drives the tool head seat 55 to rise, and the tool head seat 55 pulls the tool out of the tool storage frame 568, and then the driving motor The reverse rotation of 54 drives the flip frame 567 and the tool storage frame 568 to flip and reset, and the hydraulic push rod 51 can drive the tool changing push rod 53 to descend, and the tool changing push rod 53 drives the driving motor 54 and the tool head seat 55 to descend, and then the driving motor 54 drives the tool head seat 55 and the tool inside the tool head seat 55 to rotate, so that the workpiece can be milled. When replacing the tool, it is only necessary to drive the flip frame 567 to flip by rotating the motor 566. The replacement operation is simple, the operating steps are less, the tool changing efficiency is high, and it is convenient to adapt to the high-efficiency production requirements of industrial processing.

[0038] See also Figure 1-Figure 7 The present invention provides a technical solution: a knife storage rack 568 comprises a connecting rack 5681, one side of the connecting rack 5681 is fixedly connected to a C-shaped rack 5682, an inner wall of the C-shaped rack 5682 is fixedly connected to a fixed airbag 5683, an inner wall of the fixed airbag 5683 is fixedly connected to a fixing plate 5684, a side of the fixing plate 5684 away from the inner wall of the fixed airbag 5683 is fixedly connected to a telescopic rod 5685, a knife head 5686 is arranged inside the C-shaped rack 5682, a side of the connecting rack 5681 away from the C-shaped rack 5682 is fixedly connected to the flip rack 567, an end of the telescopic rod 5685 away from the fixing plate 5684 is fixedly connected to the inner wall of the fixed airbag 5683, multiple groups of telescopic rods 5685 and fixing plates 5684 are provided and correspond to each other, and a fixing slot adapted to the C-shaped rack 5682 is provided on the side of the knife head 5686;

[0039] A tool storage holder 568 is provided. When the tool storage holder 568 is flipped to the position directly below the tool head seat 55, the tool head seat 55 descends and is sleeved on the tool head 5686. The tool head 5686 is clamped by the tool head seat 55. Then the tool head seat 55 rises, driving the tool head 5686 to rise. The tool head 5686 is pulled out of the C-type frame 5682 to complete the tool replacement. Since a fixed air bag 5683 is provided inside the C-type frame 5682, the fixed air bag 5683 is in direct contact with the tool. The flexible clamping structure can prevent the clamping structure inside the tool holder 568 from wearing the tool surface, and avoid the loosening and falling caused by wear. At the same time, the clamping radius of the fixed air bag 5683 can be changed by inflating and deflating the fixed air bag 5683, so as to adapt to the use of tools of different sizes, so that the equipment has better adaptability for mixed use.

[0040] See also Figure 1-Figure 8 The present invention provides a technical solution: the cutter head seat 55 comprises a base 551, a mounting groove 552 is provided at the bottom of the base 551, a telescopic push rod 553 is fixedly connected to the top of the inner wall of the mounting groove 552, a sliding ring 554 is fixedly connected to the bottom of the telescopic push rod 553 through a bracket, a groove 555 is provided on the side of the inner wall of the mounting groove 552, an extrusion plate 556 is rotatably connected to the inner wall of the groove 555, a fixed protrusion 557 is fixedly connected to the inner wall of the extrusion plate 556, a limiting ring 558 is fixedly connected to the inner wall of the mounting groove 552, the top of the base 551 is fixedly connected to the driving shaft of the driving motor 54, the top of the extrusion plate 556 extends to the inside of the sliding ring 554 and is slidably connected to the inner wall of the sliding ring 554, a plurality of groups of grooves 555 are arranged and are evenly distributed inside the mounting groove 552, a clamping groove adapted to the fixed protrusion 557 is provided on the side of the cutter head 5686, and the number of the clamping grooves is three times the number of the grooves 555;

[0041] A cutter head seat 55 is provided. When in use, the tool changing push rod 53 drives the driving motor 54 and the base 551 to descend, the base 551 is sleeved on the cutter head 5686, the top of the cutter head 5686 is inserted into the inside of the mounting groove 552 and rests on the limiting ring 558, then the telescopic push rod 553 is extended to drive the sliding ring 554 to move downward, and the sliding ring 554 moves downward while pushing the extrusion plate 556 to rotate, and the extrusion plate 556 drives the fixed protrusion 557 to rotate, and presses the fixed protrusion 557 into the clamping groove on the side of the cutter head 5686, through the fixed protrusion The cooperation between block 557 and the clamping groove can clamp the cutter head 5686 inside the installation groove 552, so that the cutter head 5686 can be fixed. The fixing operation is simple and the fixing speed is fast. In addition, the number of clamping grooves is three times the number of grooves 555. When frequent replacement causes the clamping groove to wear and the clamping is easy to loosen, the cutter head 5686 can be rotated so that the clamping grooves at other positions on the cutter head 5686 cooperate with the fixing protrusion 557, so that the cutter head 5686 can always maintain a good clamping and fixing effect to avoid wear and loosening affecting the processing effect.

[0042] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A metal tool holder milling machine equipped with a flexible fixture replacement structure, comprising a workbench (1) and a support leg (2), wherein the support leg (2) is arranged at the bottom of the workbench (1) and is fixedly connected to the workbench (1), characterized in that: Also includes: A support frame (3), the support frame (3) is arranged on the top of the workbench (1) and is fixedly connected to the workbench (1), and a walking mechanism (4) is fixedly connected to the top of the support frame (3); A milling device (5), wherein the milling device (5) is arranged on a walking mechanism (4), and the walking mechanism (4) can drive the milling device (5) to move in a horizontal direction; The milling device (5) comprises a hydraulic push rod (51), the fixed end side of the hydraulic push rod (51) is fixedly connected to a fixed frame (52), the movable end of the hydraulic push rod (51) is fixedly connected to a tool changing push rod (53), the movable end of the tool changing push rod (53) is fixedly connected to a driving motor (54), the driving shaft of the driving motor (54) is fixedly connected to a tool head seat (55), and a tool holder device (56) is sleeved and fixedly connected on the movable end of the hydraulic push rod (51).

2. A metal tool holder milling machine with a flexible fixture replacement structure according to claim 1, characterized in that: The tool holder device (56) comprises a positioning frame (561), the bottom of the positioning frame (561) is fixedly connected to a tool disc (562), the bottom of the tool disc (562) is fixedly connected to a rotating groove (564), the inner wall of the rotating groove (564) is fixedly connected to a rotating support (565), the side of the rotating support (565) is fixedly connected to a rotating motor (566), the driving shaft of the rotating motor (566) passes through the rotating support (565) and is fixedly connected to a flip frame (567), and one end of the flip frame (567) is fixedly connected to a tool storage frame (568).

3. A metal tool holder milling machine with a flexible fixture replacement structure according to claim 2, characterized in that: The positioning frame (561) is sleeved on the movable end of the hydraulic push rod (51) and is fixedly connected to the hydraulic push rod (51). The rotating grooves (564) are provided in multiple groups and are evenly distributed on the cutter disc (562).

4. A metal tool holder milling machine with a flexible fixture replacement structure according to claim 2, characterized in that: The knife storage rack (568) comprises a connecting rack (5681), one side of the connecting rack (5681) is fixedly connected to a C-shaped rack (5682), the inner wall of the C-shaped rack (5682) is fixedly connected to a fixed air bag (5683), the inner wall of the fixed air bag (5683) is fixedly connected to a fixed plate (5684), the side of the fixed plate (5684) away from the inner wall of the fixed air bag (5683) is fixedly connected to a telescopic rod (5685), and a knife head (5686) is arranged inside the C-shaped rack (5682).

5. A metal tool holder milling machine with a flexible fixture replacement structure according to claim 4, characterized in that: The side of the connecting frame (5681) away from the C-shaped frame (5682) is fixedly connected to the flip 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 fixed airbag (5683).

6. A metal tool holder milling machine with a flexible fixture replacement structure according to claim 4, characterized in that: The telescopic rods (5685) and the fixing plates (5684) are provided in multiple groups and correspond to each other one by one, and a fixing slot adapted to the C-shaped frame (5682) is provided on the side of the cutter head (5686).

7. A metal tool holder milling machine with a flexible fixture replacement structure according to claim 4, characterized in that: The cutter head seat (55) comprises a base (551), a mounting groove (552) is provided at the bottom of the base (551), a telescopic push rod (553) is fixedly connected to the top of the inner wall of the mounting groove (552), a sliding ring (554) is fixedly connected to the bottom of the telescopic push rod (553) via a bracket, a groove (555) is provided on the side of the inner wall of the mounting groove (552), an extrusion plate (556) is rotatably connected to the inner wall of the groove (555), a fixed protrusion (557) is fixedly connected to the inner wall of the extrusion plate (556), and a limiting ring (558) is fixedly connected to the inner wall of the mounting groove (552).

8. The metal tool holder milling machine with a flexible fixture replacement structure according to claim 7, characterized in that: The top of the base (551) is fixedly connected to the driving shaft of the driving motor (54), and the top of the extrusion plate (556) extends into the interior of the sliding ring (554) and is slidably connected to the inner wall of the sliding ring (554).

9. The metal tool holder milling machine with a flexible fixture replacement structure according to claim 7, characterized in that: The grooves (555) are provided in multiple groups and are evenly distributed inside the mounting groove (552). The side of the cutter head (5686) is provided with clamping grooves that are compatible with the fixing protrusions (557), and the number of the clamping grooves is three times the number of the grooves (555).

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