Milling machine tool apron capable of rapidly changing tool

Abstract

The utility model discloses a milling machine tool apron capable of quickly changing a tool, which relates to the technical field of milling machines and comprises a milling tool apron, a through hole is formed in the milling tool apron, a mounting seat is inserted in the through hole in a sliding manner, and a sliding hole is formed in the mounting seat; according to the milling cutter base, the mounting base and the bottom plate are integrally inserted into the through hole, then the mounting column is inserted into the threaded hole, and then the gasket and the fastening bolt are screwed into the mounting column from the bottom of the bottom plate fixedly connected to the bottom of the threaded hole, so that the milling cutter is fixed into the milling cutter base; then, the milling and planing tool base is mounted on a machine through the front fixing plate and the rear fixing plate by using screws, and the ground can be milled and planed by starting the machine; by means of the arrangement, the situation that due to the fact that the fastening bolt is always subjected to periodic stress, fatigue damage of the fastening bolt is caused, and threaded connection fails can be avoided to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machines, in particular to a cutter holder of a milling machine capable of quickly changing tools. Background Technique

[0002] Milling the damaged old pavement layer by a road milling machine and then laying a new surface layer is one of the most economical modern maintenance methods. Because of its high working efficiency, simple construction technology, easy control of milling depth, convenient and flexible operation, good maneuverability, and the recycled use of the milled old materials, it is widely used in the maintenance projects of urban municipal roads and expressways.

[0003] For example, the existing patent (Publication No.: CN217127947U) discloses a milling machine tool and a cutter holder, including a milling cutter holder and a milling cutter. An installation device is installed at the left end of the milling cutter holder, a support device is installed at the right end of the milling cutter holder, a clamping device is installed at the upper end of the milling cutter holder, a gasket is installed at the lower part of the outer surface of the milling cutter, and the milling cutter is installed at the upper end of the clamping device.

[0004] However, the above-designed milling machine tool and cutter holder still have some disadvantages in actual use: Although the milling machine tool and cutter holder can reduce the vibration of the milling cutter and the milling cutter holder through the clamping device, and thus improve the use effect of the milling cutter holder and the milling cutter, when the milling machine mills the ground, since the milling cutter cuts the road surface in a high-speed rotation manner, it will receive an upward vertical force from the ground on the cutter, and the horizontally arranged bolts will cause fatigue fracture of the bolts due to the periodic radial load, resulting in the failure of the threaded connection.

[0005] Therefore, we designed a cutter holder of a milling machine capable of quickly changing tools to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a cutter holder of a milling machine capable of quickly changing tools to solve the problems raised in the above background technique.

[0007] To solve the above technical problems, the cutter holder of the milling machine capable of quickly changing tools provided by the utility model includes a milling cutter holder. A through hole is opened inside the milling cutter holder. An installation seat is slidably inserted inside the through hole. A sliding hole is opened inside the installation seat. An installation column is arranged inside the sliding hole. Sliders are symmetrically arranged on both sides of the installation column. A gasket is sleeved on the surface of the installation column. A threaded hole is opened inside the installation column. A milling cutter is arranged at the top of the installation column. A bottom plate is fixedly installed at the bottom of the installation seat. A washer is arranged at the bottom of the bottom plate. A fastening bolt is arranged at the bottom of the washer.

[0008] Further, at the bottom of the sliding milling cutter holder of the bottom plate, the bottom of the bottom plate is flush with the bottom of the milling cutter holder, which is convenient for installation.

[0009] Further, the mounting post is slidably inserted into the sliding hole, and the fastening bolt is threadedly connected to the threaded hole, so that the whole of the mounting post and the milling cutter is connected to the milling cutter holder.

[0010] Further, sliding grooves are symmetrically arranged on both sides of the sliding hole, the slider is slidably connected to the sliding groove, and a damping rod is fixedly installed at the bottom of each sliding groove. The top of the damping rod abuts against the slider. The damping rod is acted on by the slider so that the internal spring is always in a compressed state. When the ground gives the cutter an upward vertical force, the compressed spring will give the cutter a downward vertical force to offset the force brought by the ground.

[0011] Further, clamping grooves are symmetrically arranged inside the gasket, and clamping blocks are symmetrically arranged on the surface of the milling cutter holder. The clamping blocks are clamped inside the clamping grooves. The clamping blocks are inserted into the clamping grooves to make the connection of the cutter more stable.

[0012] Further, a front fixing plate and a rear fixing plate are respectively fixedly installed on both sides of the milling cutter holder. The front fixing plate and the rear fixing plate are used to connect to the processing machine by screws.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: by inserting the whole of the mounting seat and the bottom plate into the through hole, then inserting the mounting post into the sliding hole, and then screwing the washer and the fastening bolt into the mounting post from the bottom of the bottom plate fixedly connected to the bottom of the sliding hole, so as to fix the milling cutter inside the milling cutter holder. Then, use screws to install the milling cutter holder on the machine through the front fixing plate and the rear fixing plate. Turning on the machine can mill the ground. The vertical setting of the fastening bolt can, to a certain extent, avoid the situation that the fastening bolt is always subjected to periodic stress, resulting in fatigue failure of the fastening bolt and causing the threaded connection to fail.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: by sliding the slider into the sliding groove and abutting against the damping rod, the damping rod is acted on by the slider so that the internal spring is always in a compressed state. When the ground gives the cutter an upward vertical force, the compressed spring will give the cutter a downward vertical force to offset the force brought by the ground. At the same time, the clamping block is inserted into the clamping groove to make the connection of the cutter more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0016] Figure 2 is an external three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 This is a schematic top view structure diagram of the milling cutter holder of the present utility model;

[0018] Figure 4 This is a schematic sectional view structure diagram of the mounting seat of the present utility model.

[0019] In the figure: 1. Milling cutter holder; 2. Through hole; 3. Mounting seat; 4. Slide hole; 5. Gasket; 6. Card slot; 7. Mounting post; 8. Slide block; 9. Milling cutter; 10. Bottom plate; 11. Washer; 12. Fastening bolt; 13. Slide groove; 14. Damping rod; 15. Front fixing plate; 16. Rear fixing plate; 17. Block. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution: a milling machine cutter holder that can quickly change the cutter, including a milling cutter holder 1. A through hole 2 is opened inside the milling cutter holder 1. A mounting seat 3 is slidably inserted into the inside of the through hole 2. A slide hole 4 is opened inside the mounting seat 3. A mounting post 7 is arranged inside the slide hole 4. Slide blocks 8 are symmetrically arranged on both sides of the mounting post 7. A gasket 5 is sleeved on the surface of the mounting post 7. A threaded hole is opened inside the mounting post 7. A milling cutter 9 is arranged on the top of the mounting post 7. The bottom of the mounting seat 3 is fixedly installed with a bottom plate 10. A washer 11 is arranged at the bottom of the bottom plate 10. A fastening bolt 12 is arranged at the bottom of the washer 11. The bottom plate 10 is slidably inserted into the bottom of the milling cutter holder 1. The mounting post 7 is slidably inserted into the slide hole 4. The fastening bolt 12 is threadedly connected to the threaded hole.

[0022] During specific implementation, by inserting the whole of the mounting seat 3 and the bottom plate 10 into the inside of the through hole 2, then inserting the mounting post 7 into the inside of the slide hole 4, and then screwing the washer 11 and the fastening bolt 12 into the inside of the mounting post 7 from the bottom of the bottom plate 10 fixedly connected to the bottom of the slide hole 4, so as to fix the milling cutter 9 inside the milling cutter holder 1. The vertical setting of the fastening bolt 12 can, to a certain extent, avoid the situation that the fastening bolt 12 is always subjected to periodic stress, resulting in fatigue failure of the fastening bolt 12 and causing the threaded connection to fail.

[0023] Refer to Figures 1-4As shown, sliding grooves 13 are symmetrically arranged on both sides of the sliding hole 4. The slider 8 is slidably connected within the sliding grooves 13. A damping rod 14 is fixedly installed at the bottom of each sliding groove 13, and the top of the damping rod 14 abuts against the slider 8. Card slots 6 are symmetrically arranged inside the gasket 5, and clamping blocks 17 are symmetrically arranged on the surface of the milling cutter holder 1. The clamping blocks 17 are clamped inside the card slots 6.

[0024] During specific implementation, by sliding the slider 8 into the sliding groove 13 and abutting against the damping rod 14, the internal spring of the damping rod 14 is always in a compressed state under the action of the slider 8. When the ground gives the tool a vertically upward force, the compressed spring will give the tool a vertically downward force to offset the force brought by the ground. At the same time, the clamping blocks 17 are inserted into the card slots 6, making the connection of the tool more stable.

[0025] Refer to Figures 1-4 On both sides of the milling cutter holder 1, a front fixing plate 15 and a rear fixing plate 16 are respectively fixedly installed. The front fixing plate 15 and the rear fixing plate 16 are connected to the processing machine by screws.

[0026] During specific implementation, use screws to install the milling cutter holder 1 on the machine through the front fixing plate 15 and the rear fixing plate 16, and start the machine to mill the ground.

[0027] In addition, the damping rod 14 is a mechanical component, usually used for shock absorption and vibration reduction purposes. They are installed in machines, equipment or structures to help reduce the energy transfer caused by vibration, impact or other forms of movement. The damping rod 14 usually contains one or more springs and damping materials, which can absorb, weaken and disperse the vibration energy generated by the machine or structure. Since the damping rod 14 is prior art, it will not be described in detail in this specification.

[0028] Working principle: When clamping the tool, first insert the whole of the mounting seat 3 and the bottom plate 10 into the through hole 2, then insert the mounting post 7 into the sliding hole 4, and then screw the washer 11 and the fastening bolt 12 into the mounting post 7 from the bottom of the bottom plate 10 fixedly connected to the bottom of the sliding hole 4 to fix the milling cutter 9 inside the milling cutter holder 1. Then use screws to install the milling cutter holder 1 on the machine through the front fixing plate 15 and the rear fixing plate 16, and start the machine to mill the ground.

[0029] When the tool needs to be replaced, only need to loosen the screws installed on the front fixing plate 15 and the rear fixing plate 16 and remove them, and then loosen the fastening bolt 12, then the milling cutter 9 can be removed from the inside of the milling cutter holder 1 for replacement.

[0030] After the milling cutter 9 is installed, the slider 8 will slide into the chute 13 and abut against the damping rod 14. The damping rod 14 is acted upon by the slider 8 to keep the internal spring in a compressed state all the time. When the ground gives the cutter a vertically upward force, the compressed spring will give the cutter a vertically downward force to offset the force brought by the ground. Since the fastening bolt 12 is vertically arranged, this setting can, to a certain extent, avoid the situation where the fastening bolt 12 is always subjected to periodic stress, resulting in fatigue failure of the fastening bolt 12 and causing the thread connection to fail. At the same time, the clamping block 17 is inserted into the clamping groove 6, making the connection of the cutter more stable.

Claims

1. A milling machine tool holder capable of rapid tool change, comprising a milling machine tool holder (1), characterized in that: The milling cutter seat (1) is provided with a through hole (2) inside, a mounting seat (3) is slidably inserted inside the through hole (2), a sliding hole (4) is provided inside the mounting seat (3), a mounting column (7) is provided inside the sliding hole (4), sliding blocks (8) are symmetrically provided on both sides of the mounting column (7), a gasket (5) is sleeved on the surface of the mounting column (7), a threaded hole is provided inside the mounting column (7), a milling cutter (9) is provided on the top of the mounting column (7), a bottom plate (10) is fixedly installed on the bottom of the mounting seat (3), a washer (11) is provided at the bottom of the bottom plate (10), and a fastening bolt (12) is provided at the bottom of the washer (11).

2. The milling machine tool holder capable of rapid tool change according to claim 1, characterized in that: The bottom plate (10) is slidably plugged into the bottom of the milling cutter seat (1).

3. The tool holder for a milling machine capable of rapid tool change according to claim 1, characterized in that: The mounting column (7) is slidably inserted into the sliding hole (4), and the fastening bolt (12) is threadedly connected to the threaded hole.

4. The tool holder for a milling machine capable of rapid tool change according to claim 1, characterized in that: Slide grooves (13) are symmetrically arranged on both sides of the slide hole (4), and the slide block (8) is slidably connected in the slide grooves (13). A damping rod (14) is fixedly mounted at the bottom of each slide groove (13), and the top of the damping rod (14) abuts against the slide block (8).

5. The tool holder for a milling machine capable of rapid tool change according to claim 1, characterized in that: A clamping groove (6) is symmetrically arranged inside the gasket (5), and a clamping block (17) is symmetrically arranged on the surface of the milling cutter seat (1), wherein the clamping block (17) is clamped inside the clamping groove (6).

6. The tool holder for a milling machine capable of rapid tool change according to claim 1, characterized in that: A front fixing plate (15) and a rear fixing plate (16) are respectively fixedly mounted on both sides of the milling cutter seat (1); the front fixing plate (15) and the rear fixing plate (16) are connected to a processing machine via screws.

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