阅读说明：本技术 一种便携式铣床 (Portable milling machine ) 是由 孙一清 陈书 林慧超 于 2020-12-17 设计创作，主要内容包括：本发明公开了一种便携式铣床,包括工作台、固定底板、钻铣组件、进给组件、传动组件,所述工作台上安装钻铣组件,所述固定底板安装在工作台下方,所述进给组件安装在工作台上方,所述传动组件安装在钻铣组件上方。本发明设计合理,采用模块化设计,结构巧妙,携带和安装方便为大型换热器密封面筋板加工提供了方便。(The invention discloses a portable milling machine which comprises a workbench, a fixed bottom plate, a drilling and milling assembly, a feeding assembly and a transmission assembly, wherein the drilling and milling assembly is installed on the workbench, the fixed bottom plate is installed below the workbench, the feeding assembly is installed above the workbench, and the transmission assembly is installed above the drilling and milling assembly. The rib plate processing device is reasonable in design, adopts a modular design, is ingenious in structure, and is convenient to carry and mount, so that convenience is provided for processing the rib plate on the sealing surface of the large heat exchanger.)

1. A portable milling machine is characterized in that: comprises a fixed bottom plate (1), a workbench (2), a drilling and milling assembly (3), a transmission assembly (4) and a feeding assembly (5); a workbench (2) is arranged on the fixed bottom plate (1); the upper end surface of the workbench (2) is provided with a drilling and milling assembly (3), and the side surface is provided with a feeding assembly (5); the transmission assembly (4) is arranged above the drilling and milling assembly (3);

the feeding assembly (5) comprises a bearing gland (18), a bearing (19), a supporting end bearing seat (20), a lead screw connecting plate (21), a lead screw nut seat (22), a lead screw nut (23), a lead screw (24), a fixed end bearing seat (25) and a cutter feeder (26); the screw rod nut (23) is arranged on the screw rod (24); the feed screw nut seat (22) is arranged on the feed screw nut (23); the screw rod connecting plate (21) is arranged on the screw rod nut seat (22); the bearing (19) and the bearing gland (18) are arranged on the bearing seat (20) at the supporting end; the support end bearing seat (20) is arranged on the screw rod (24); the feed device (26) and the bearing (19) are installed on the fixed end bearing seat (25), and the fixed end bearing seat (25) is installed on the screw rod (24).

2. The portable milling machine of claim 1, wherein: the workbench (2) comprises a base (27), a guide rail (28), a sliding block (29) and a connecting plate (30); the guide rail (28) is connected with the base (27) through a bolt, the sliding block (29) is installed on the guide rail (28), and the connecting plate (30) is connected with the sliding block (29) through a bolt; the upper surface of the workbench (2) is provided with two rectangular grooves (33) which are hollow cuboid.

3. The portable milling machine of claim 1, wherein: the drilling and milling assembly (3) comprises a milling machine spindle (10), a spindle feeding box (11), a copper sleeve (12), a gear shaft (13), a hand wheel (14) and a spindle locking handle (15); the milling machine spindle (10) is installed in a hollow spindle feeding box (11); the copper sleeves (12) are arranged at two ends (13) of the gear shaft; the hand wheel (14) is arranged on the gear shaft (13); the copper sleeve (12) is arranged in a hole A (31) of the spindle feeding box (11); the main shaft locking handle (15) is arranged in a hole B (32) of the main shaft feeding box (11).

4. The portable milling machine of claim 1, wherein: the transmission assembly (4) comprises a protective cover (6), a belt (7), a belt pulley 1(8), a belt pulley 2(9), a motor connecting plate (17) and a servo motor (16); the servo motor (16) is arranged on the motor connecting plate (17) through a bolt; the belt pulley 1(8) is arranged at the shaft end of the servo motor (16).

5. The belt pulley 2(9) is arranged on a milling machine spindle (10); the belt (7) is mounted on pulleys 1(8) and 2 (9); the protective cover (6) is arranged on the servo motor connecting plate (17).

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a portable milling machine.

Background

The milling machine mainly refers to a machine tool for processing various surfaces of a workpiece by using a milling cutter, generally, the milling cutter mainly moves by rotating, the movement of the workpiece and the milling cutter is feeding movement, and the milling machine can process planes, grooves, various curved surfaces, gears and the like; the milling machine is a machine tool for milling a workpiece by using a milling cutter.

However, the existing milling machine is large in size, heavy in weight and inconvenient to carry, and for some large-scale equipment such as a heat exchanger sealing groove, if a workpiece is large, a lot of manpower and material resources are consumed for processing on a machine tool, and the requirement on a processing field is high. Especially, the mode that the sealing groove can not be disassembled for repair is more difficult, and the precision can not be ensured.

Disclosure of Invention

In order to make up for the defects, the invention provides the portable milling machine which is reasonable in design, ingenious in structure and convenient to operate and install.

The technical problem of the invention is mainly solved by the following technical scheme:

a portable milling machine comprises a fixed bottom plate, a workbench, a drilling and milling assembly, a transmission assembly and a feeding assembly; a workbench is arranged on the fixed bottom plate; the upper end surface of the workbench is provided with a drilling and milling assembly, and the side surface of the workbench is provided with a feeding assembly; the transmission assembly is arranged above the drilling and milling assembly.

As the preferred technical scheme, the workbench comprises a base, a guide rail, a sliding block and a connecting plate; the guide rail is connected with the base through a bolt, the sliding block is arranged on the guide rail, and the connecting plate is connected with the sliding block through a bolt; the upper surface of the workbench is provided with two rectangular grooves which are hollow cuboid.

The invention adopts the hollow cuboid workbench to reduce the weight of the workbench under the condition of ensuring the rigidity of the workbench, thereby reducing the weight of the whole equipment; through the control to the recess machining dimension on workstation surface, can make us have a positioning action when installing the guide rail, need not to carry out the alignment to the track during installation, can directly use the bolt fastening, the on-the-spot installation of being convenient for of such structure, dismantlement, maintenance.

According to the preferable technical scheme, the drilling and milling assembly comprises a milling machine spindle, a spindle feeding box, a copper sleeve, a gear shaft, a hand wheel and a spindle locking handle; the milling machine spindle is arranged in a hollow spindle feeding box; the copper sleeves are arranged at two ends of the gear shaft; the hand wheel is arranged on the gear shaft; the copper sleeve is arranged in the hole A of the spindle feeding box; the main shaft locking handle is arranged in a main shaft feeding box hole B.

The invention is convenient for the installation, speed regulation and disassembly of the gear shaft by controlling the center distance between the inner hole of the main shaft feeding box and the main shaft feeding box hole B of the gear shaft. By controlling the matching size of the milling machine spindle and the spindle feeding box, the spindle can reduce vibration in the cutting process, and a better processing surface can be obtained. The modularized design mode is convenient to install, debug and disassemble, and the working efficiency is improved.

As the preferred technical scheme, the transmission assembly comprises a protective cover, a belt pulley 1, a belt pulley 2, a motor connecting plate and a servo motor; the servo motor is arranged on the motor connecting plate through a bolt; the belt pulley 1 is arranged at the shaft end of the servo motor; the belt pulley 2 is arranged on a main shaft of the milling machine; the belt is arranged on the belt pulley 1 and the belt pulley 2; the safety cover is installed on the servo motor connecting plate.

According to the invention, different speed ratios are obtained by changing the diameters of the belt pulley 1 and the belt pulley 2 and matching with corresponding belts, so that the rotating speeds of different milling machine main shafts can be obtained on the premise of not reducing the output torque of the servo motor, thereby increasing or reducing the torque of the milling machine main shaft, enabling processing parts made of different materials to obtain a good cutting process and improving the processing efficiency. The modularized design mode is convenient to install, debug and disassemble, and the working efficiency is improved.

As a preferred technical scheme, the feeding assembly comprises a bearing gland, a bearing, a supporting end bearing seat, a screw rod connecting plate, a screw rod nut seat, a screw rod nut, a screw rod, a fixed end bearing seat and a cutter feeder; the screw rod nut is arranged on the screw rod; the feed screw nut seat is arranged on the feed screw nut; the screw rod connecting plate is arranged on the screw rod nut seat; the bearing and the bearing gland are arranged on the bearing seat at the supporting end; the support end bearing block is arranged on the screw rod; the feed device and the bearing are installed on the fixed end bearing block, and the fixed end bearing block is installed on the screw rod.

In the limited speed change range of the feed device, the feed device can obtain different feed speeds by replacing the lead screws with different screw pitches and the corresponding lead screw nuts, and can obtain different cutting speeds when parts made of different materials are processed, so that good processing efficiency is obtained. The modularized design mode is convenient to install, debug and disassemble, and the working efficiency is improved.

Compared with the prior art, the invention has the following advantages and beneficial effects:

the portable milling machine disclosed by the invention adopts a modular design, is ingenious in structure, convenient to carry and install, simple in manufacturing process, convenient to machine, easy to maintain and replace and convenient to popularize and use, and provides convenience for machining the rib plates on the sealing surfaces of the large heat exchangers.

Drawings

For a clearer explanation of the portable milling machine of the present invention, the drawings of the portable milling machine will be briefly described below.

FIG. 1 is a schematic perspective view of a portable milling machine according to the present invention;

FIG. 2 is an exploded view of the portable milling machine of the present invention;

FIG. 3 is an exploded view of the table of the portable milling machine of the present invention;

FIG. 4 is an exploded view of the milling and drilling assembly of the portable milling machine of the present invention;

FIG. 5 is an exploded view of the drive assembly of the portable milling machine of the present invention;

FIG. 6 is an exploded view of the feed assembly of the portable milling machine of the present invention;

wherein:

1. fixing the bottom plate; 2. a work table; 3. drilling and milling components; 4. a transmission assembly; 5. a feeding assembly; 6. a protective cover; 7. a belt; 8. a belt pulley 1; 9. a belt pulley 2; 10. a milling machine spindle; 11. a spindle feed box; 12. a copper sleeve; 13. a gear shaft; 14. a hand wheel; 15. a main shaft locking handle; 16. a servo motor; 17. A servo motor connecting plate; 18. a bearing gland; 19. a bearing; 20. a support end bearing block; 21. a screw connecting plate; 22. a screw nut seat; 23. a feed screw nut; 24. a screw rod; 25. fixing a bearing seat; 26. A feeder; 27. a base; 28. a guide rail; 29. a slider; 30. a connecting plate; 31. a hole A; 31. a hole B; 33. a rectangular groove.

Detailed Description

The present invention is described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention can be clearly and clearly defined.

A portable milling machine as shown in fig. 1 includes: the automatic drilling and milling device comprises a fixed base plate (1), a workbench (2), a drilling and milling component (3), a transmission component (4) and a feeding component (5), wherein the workbench (2) is installed on the fixed base plate (1), the drilling and milling component (3) and the feeding component (5) are installed on the upper end face of the workbench (2), and the transmission component (4) is installed above the drilling and milling component (3).

As shown in fig. 3, the workbench (2) is a hollow cuboid with two rectangular grooves (33) on the upper surface, and comprises a base (27), a guide rail (28), a slider (29) and a connecting plate (30), wherein the guide rail (28) is connected with the base (27) through a bolt, the slider (29) is installed on the guide rail (28), and the connecting plate (30) is connected with the slider (29) through a bolt.

Specifically, as shown in fig. 4, the drilling and milling assembly (3) comprises a milling machine spindle (10), a spindle feeding box (11), a copper bush (12), a gear shaft (13), a hand wheel (14) and a spindle locking handle (15), wherein the milling machine spindle (10) is installed in the hollow spindle feeding box (11), the copper bush (12) is installed at two ends of the gear shaft (13), the hand wheel (14) is installed on the gear shaft (13), the copper bush (12) is installed in a hole a (31) of the spindle feeding box (11), and the spindle locking handle (15) is installed in a hole B (32) of the spindle feeding box (11).

Specifically, as shown in fig. 5, the transmission assembly (4) includes a protective cover (6), a belt (7), a belt pulley 1(8), a belt pulley 2(9), a motor coupling plate (17), and a servo motor (16), wherein the servo motor (16) is mounted on the motor coupling plate (17) through a bolt, the belt pulley 1(8) is mounted at an axial end of the servo motor (16), the belt pulley 2(9) is mounted on the milling machine spindle (10), the belt (7) is mounted on the belt pulley 1(8) and the belt pulley 2(9), and the protective cover (6) is mounted on the servo motor coupling plate (17).

Specifically, as shown in fig. 6, the feeding assembly (5) includes a bearing cover (18), a bearing (19), a supporting end bearing seat (20), a feed screw coupling plate (21), a feed screw nut seat (22), a feed screw nut (23), a feed screw (24), a fixed end bearing seat (25), and a feed carriage (26), wherein the feed screw nut (23) is installed on the feed screw (24), the feed screw nut seat (22) is installed on the feed screw nut (23), the feed screw coupling plate (21) is installed on the feed screw nut seat (22), the bearing (19) and the bearing cover (18) are installed on the supporting end bearing seat (20), the supporting end bearing seat (20) is installed on the feed screw (24), and the feed carriage (26) and the bearing (19) are installed on the fixed end bearing seat (25) and the fixed end bearing seat (25) is installed on the feed screw nut seat (24).

Unless specifically stated or limited otherwise, the terms "disposed (or mounted)", "connected" and "connected" in the present invention are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The design idea of the present invention is described above with only one embodiment, and the present invention can be expanded to connect more external functional modules when the system allows, thereby expanding the functions thereof to the maximum extent.

The above description is only a basic embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood that modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features by those skilled in the art are also included in the scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.