CN215146721U

CN215146721U - Special numerically-controlled fixed beam planer type milling machine for milling bottom

Info

Publication number: CN215146721U
Application number: CN202121580329.1U
Authority: CN
Inventors: 孔坤; 李凌; 段青; 吕文昊
Original assignee: Wuhu China Railway Track Equipment Co Ltd
Current assignee: Wuhu China Railway Track Equipment Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-14
Anticipated expiration: 2031-07-13

Abstract

The utility model provides a special numerically-controlled fixed beam planer-type milling machine at bottom of milling, including the portal frame, the portal frame includes lathe bed, two stands and crossbeam, be provided with preceding main shaft on the crossbeam front rail, be provided with back main shaft on the crossbeam back rail, preceding main shaft with the epaxial ram-type cutter head of back main can produce the removal on vertical and the horizontal direction. The utility model provides a special numerically-controlled fixed beam planer-type milling machine for milling bottom, which is characterized in that a main shaft is respectively arranged in front of and behind a cross beam, so that the plane processing of the bottom of the whole frog can be completed by one-time feeding, and the efficiency is improved; the servo motor and the numerical control system are adopted for control, so that the tool setting is convenient, the machining precision is high, and the later-stage manual grinding of the tool receiving step is avoided; meanwhile, the scrap removal devices are arranged on two sides of the machine tool body, scrap iron is collected and discharged, production efficiency is improved, and labor intensity is reduced.

Description

Special numerically-controlled fixed beam planer type milling machine for milling bottom

Technical Field

The utility model mainly relates to the technical field of high manganese steel frog, in particular to a high manganese steel frog mills end special machining planer-type milling machine.

Background

The milling machine refers to a machine tool for processing various surfaces of a workpiece by using a milling cutter. Typically the milling cutter is moved primarily in a rotary motion and the movement of the workpiece and the milling cutter is a feed motion. It can be used for processing plane, groove, and various curved surfaces.

The frog bottom milling process particularly refers to milling the bottom plane of the frog, so that the frog is fixed on the base plate through the elastic strip and the fastener.

The top surface of the high manganese steel frog is required to be machined to meet the precision requirement when a base plate is assembled, the total width dimension of the common frog model is 350-600 mm, the whole bottom plane cannot meet the process requirement when a large-diameter cutter is used for machining once due to the machining hardening characteristic of the high manganese steel and the like, a main shaft of a common planer type milling machine used in the existing process is mainly used for machining the width of about 200-300 mm once, the whole frog is machined by 2 times of cutting feed, the manual tool setting operation is inconvenient, and the efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

1. The purpose of the utility model

The utility model provides an improve frog mills processing efficiency's at the bottom of process's special use and mills end numerical control fixed beam planer-type milling machine.

2. Contents of utility model

In order to realize the purpose, the utility model discloses a technical scheme be: a special numerically-controlled fixed-beam planer type milling machine for milling bottoms comprises a portal frame, wherein the portal frame comprises a machine body, two stand columns and a cross beam, a front main shaft is arranged on a front guide rail of the cross beam, a rear main shaft is arranged on a rear guide rail of the cross beam, and ram type milling heads on the front main shaft and the rear main shaft can move in the vertical direction and the horizontal direction.

Further, the front main shaft and the rear main shaft also comprise slide carriages, and the ram-type milling head and the slide carriages can be transversely connected with the beam guide rails in a sliding manner; the ram type milling head is vertically lifted and slidably connected with the slide carriage.

Furthermore, the front spindle and the rear spindle adopt independent servo motors to control the ram type milling head to move transversely or vertically, and the servo motors are controlled by a numerical control system operating station.

Furthermore, the planer type milling machine further comprises chip removal devices arranged on two sides of the machine body, and the chip removal devices can use chain plate type chip removal devices.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a special numerically-controlled fixed beam planer-type milling machine for milling bottom, which is characterized in that a main shaft is respectively arranged in front of and behind a cross beam, so that the plane processing of the bottom of the whole frog can be completed by one-time feeding, and the efficiency is improved;

the servo motor and the numerical control system are adopted for control, so that the tool setting is convenient, the machining precision is high, and the later-stage manual grinding of the tool receiving step is avoided;

meanwhile, the scrap removal devices are arranged on two sides of the machine tool body, scrap iron is collected and discharged, production efficiency is improved, and labor intensity is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification of the invention, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is another angle structure diagram of the present invention.

Reference numerals

1-a portal frame; 2-a cross beam; 3-front main shaft; 31-ram cutter head; 32-slide carriage; a 33-Y axis AC servo motor; a 34-Z axis AC servo motor; 4-rear main shaft; a 41-V axis AC servo motor; a 42-W axis AC servo motor; 5-a numerical control system operation station; 6-chip removal device; 7-X axis table.

Detailed Description

Reference will now be made in detail to various exemplary embodiments of the invention, which should not be considered limiting of the invention, but rather should be understood to be a more detailed description of certain aspects, features and embodiments of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.

The first embodiment is as follows: referring to fig. 1-2, the special bottom-milling numerical control fixed beam planer type milling machine comprises a gantry 1, wherein the gantry 1 comprises a machine body, two upright posts and a cross beam 2, a front main shaft 3 is arranged on a front guide rail of the cross beam 2, and a rear main shaft 4 is arranged on a rear guide rail of the cross beam 2.

Specifically, in the front spindle 3, a ram-type milling head 31 (controlled by a variable frequency motor) is arranged on a front guide rail of a machine tool beam 2, and a slide carriage 32 and the ram-type milling head 31 transversely move along the guide rail of the beam 2 along the Y-axis direction; the ram type milling head 31 vertically ascends and descends along the Z-axis direction along the slide carriage 32 guide rail; the ram-type milling head 31 moves transversely along the guide rail of the beam 2 and adopts a Y-axis alternating-current servo motor 33; the ram-type milling head 31 is vertically moved up and down along the slide 32 guide rail by a Z-axis AC servo motor 34.

Specifically, in the rear main shaft 4, a ram type milling head 31 (controlled by a variable frequency motor) is arranged on a rear guide rail of the machine tool beam 2, and the slide carriage 32 and the ram type milling head 31 transversely move along the guide rail of the beam 2 along the direction of the V axis; the ram type milling head 31 vertically ascends and descends along the W-axis direction along the slide carriage 32 guide rail; the ram-type milling head 31 moves transversely along the guide rail of the beam 2 by adopting a V-axis alternating current servo motor 41; the ram-type milling head 31 is vertically moved up and down along the guide rail of the carriage 32 by using a W-axis AC servo motor 42.

The machine tool adopts a beam fixed gantry frame structure, two upright posts are fixedly connected with the machine tool body and the beam to form a closed high-rigidity gantry frame 11, and the whole machine has enough dynamic and static rigidity and shock resistance.

Specifically, the planer type milling machine further comprises a numerical control system operating station 5, a chip removal device 6 and an X-axis workbench 7; the numerical control system operating station 5 adopts a Siemens 828D numerical control system, the number of control axes is 4 (Y axis; V axis; Z axis; W axis), when the machine tool is in an initial state, the 0 reference point positions of the corresponding ram of the two ram type milling heads 31 are well adjusted, the program is fixed, and Z, W axis coordinates of the two 0 reference points are in the same horizontal plane and can return to the zero point position by one key; the constant-height processing is well guaranteed by simultaneously using the two milling heads to process the bottom plane of the frog rail, a large amount of auxiliary time is reduced, and the processing efficiency and the processing precision are improved;

in this embodiment, the chip removal device 6 is equipped with in lathe bed both sides overall length, and the chip removal device can use chain slat type chip removal device, is convenient for clean, alleviates workman intensity of labour, newly increases a main shaft on crossbeam 2 rear guideway, adopts servo motor, numerical control system control, can mill around simultaneously, improves machining efficiency and machining precision.

Example two: in this embodiment, in combination with the chain plate type chip removal device of the first embodiment, a detachable blanking stopper is arranged at the chip removal port, the blanking stopper uses a transparent corrugated pipe, a connecting piece is arranged at one end of the corrugated pipe, a fixing hole is formed in the connecting piece, and the fixing hole is hung on a hook positioned at the periphery of the chip removal port.

The corrugated pipe length adjusting device comprises a corrugated pipe, wherein the corrugated pipe is provided with a plurality of clamping buckles with different heights, the clamping buckles with the same height are arranged at least 2, the connecting pieces are provided with a plurality of plastic chain pieces, the clamping grooves with different heights on the plastic chain pieces are hooked by the clamping buckles, and the corrugated pipe length is adjusted.

The foregoing is only an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims

1. The special numerically-controlled fixed beam planer type milling machine for milling the bottom is characterized by comprising a portal frame (1), wherein the portal frame (1) comprises a machine body, two stand columns and a cross beam (2), a front main shaft (3) is arranged on a front guide rail of the cross beam (2), a rear main shaft (4) is arranged on a rear guide rail of the cross beam (2), and a ram type milling head (31) on the front main shaft (3) and the rear main shaft (4) can move in the vertical direction and the horizontal direction.

2. A special numerically controlled fixed-beam milling planer with milling bottom according to claim 1, characterized in that the front main shaft (3) and the rear main shaft (4) further comprise a slide carriage (32), and the ram-type milling head (31) and the slide carriage (32) are connected with the guide rail of the beam (2) in a transverse sliding manner; the ram type milling head (31) is vertically lifted and slidably connected with the slide carriage (32).

3. A special bottom milling numerically controlled fixed beam planomiller according to claim 1, characterized in that the front spindle (3) and the rear spindle (4) use independent servo motors to control the lateral movement or the vertical movement of the ram milling head (31), and the servo motors are controlled by a numerical control system operator station (5).

4. The special numerically controlled fixed beam planomiller with the milled bottom according to claim 1, further comprising chip removal devices (6) arranged on two sides of the planomiller body, wherein the chip removal devices (6) can use chain plate type chip removal devices.