CN217122597U

CN217122597U - Gantry machining center

Info

Publication number: CN217122597U
Application number: CN202220447788.0U
Authority: CN
Inventors: 苏剑超; 谭礼财; 林子谋
Original assignee: Changpu Intelligent Equipment Guangdong Co ltd
Current assignee: Changpu Intelligent Equipment Guangdong Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-08-05
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a gantry machining center, which comprises a machine tool body, a gantry frame, a first gear motor and a fourth shaft module, wherein a first guide rail and a first rack are arranged on the left side and the right side of the machine tool body, and the first guide rail and the first rack are both positioned below a first scrap baffle; the machine tool body is provided with a chip removal area, and a second guide rail for mounting the clamp and the fourth shaft module is mounted in the chip removal area; the fourth shaft module comprises a first rotating shaft, a first fixed seat, a first movable seat and a first driving motor; the first fixed seat is fixedly arranged on the machine tool body, and the bottom of the first movable seat is provided with a second sliding block; one end of the first rotating shaft is rotatably connected to the first fixing seat, the other end of the first rotating shaft is connected with the first movable seat in a plugging mode, and the first driving motor is installed on the first fixing seat and connected with the first rotating shaft. The second guide rail can be used as a component of an assembly standard of the fourth shaft module and the fixture, and when the fourth shaft or the fixture is installed, the parallelism calibration is not needed to be carried out, so that the time consumed for installing the fixture is shortened, and the processing precision of the part is not influenced by the assembly precision.

Description

Gantry machining center

Technical Field

The utility model belongs to the technical field of mechanical equipment technique and specifically relates to indicate a longmen machining center.

Background

With the development of the manufacturing industry in China, the application of the numerical control machine tool is wider and wider, and the gantry type machine tool is more and more commonly applied. A workbench of a traditional numerical control gantry machining center and guide rails for a machine head module to move are arranged on a lathe bed, and the guide rails are usually arranged on the left side and the right side of the workbench; for the workbench, a T-shaped groove platform is generally adopted.

For the gantry machining center based on the structural arrangement, in the process of using the gantry machining center, if a fourth shaft needs to be added; based on the structure of the T-shaped groove platform, the axial parallelism alignment difficulty of the fourth shaft is high when the fourth shaft is installed, and long debugging time is consumed when the fourth shaft is debugged; if there is a deviation in the parallelism of the fourth axis, the processing precision of subsequent products is affected. If the fourth shaft is arranged on the T-shaped groove platform to process products, scraps generated by the products can directly fall on the T-shaped groove platform to cause accumulation, and workers are required to clean the T-shaped groove platform; and the scraps accumulated on the T-shaped groove platform often fall onto the guide rail, so that the reliable movement of the head module is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a longmen machining center, and its structure sets up rationally, solves traditional longmen machining center effectively to have fourth shaft alignment troublesome, sweeps to exist to pile up and influence the reliable removal scheduling problem of aircraft nose module.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a gantry machining center, which comprises

The left side and the right side of the top of the machine tool body are provided with a first chip blocking plate, and the two chip blocking plates extend towards the outer side of the machine tool body respectively; the left side and the right side of the machine tool body are provided with a first guide rail and a first rack, and the first guide rail and the first rack are both positioned below the first scrap baffle; the machine tool body is provided with a chip removal area, and a second guide rail for mounting the clamp and the fourth shaft module is mounted in the chip removal area;

the device comprises a portal frame, wherein first sliding bottom plates are arranged at the bottoms of the left side and the right side of the portal frame, and first sliding blocks used for connecting first guide rails are arranged on the first sliding bottom plates; the gantry is provided with a machine head moving module and a machine head arranged on the machine head moving module;

the first gear motor is used for driving the portal frame to move, the first gear motor is mounted on the first fixing plate, the first fixing plate is mounted on the first sliding bottom plate, and a first gear connected with the first rack is mounted on an output shaft of the first gear motor;

the fourth shaft module comprises a first rotating shaft, a first fixed seat, a first movable seat and a first driving motor; the first fixed seat is fixedly arranged on the machine tool body, and the bottom of the first movable seat is provided with a second sliding block movably connected with the second guide rail; one end of the first rotating shaft is rotatably connected to the first fixing seat, the other end of the first rotating shaft is connected with the first movable seat in a plugging mode, and the first driving motor is installed on the first fixing seat and connected with the first rotating shaft.

As a preferred embodiment: the machine tool body comprises a plurality of short sectional materials and two long sectional materials;

a plurality of short sectional materials are arranged at intervals front and back, and each short sectional material extends left and right;

two long section bars are arranged at a left-right interval, each long section bar extends forwards and backwards, one long section bar is connected with the left ends of a plurality of short section bars, the other long section bar is connected with the right ends of a plurality of short section bars,

the plurality of short sections and the two long sections enclose the chip removal area.

As a preferred embodiment: the two long sections are located on the side of the chip removal area and are provided with a plurality of first supporting plates at intervals along the extending direction of the chip removal area, the tops of the first supporting plates are provided with a first mounting seat, the first mounting seat and the long sections are arranged at intervals, and the tops of the first mounting seats are provided with first mounting concave positions for mounting a second guide rail;

the outer sides of the two long sections are provided with a second mounting seat along the extending direction of the two long sections, and the first guide rail and the first rack are arranged on the second mounting seat and are arranged up and down; and a second chip blocking plate is arranged between the first guide rail and the first rack, the second chip blocking plate extends towards the outer side, and the extending width of the second chip blocking plate is larger than that of the first rack.

As a preferred embodiment: the first sliding bottom plate and the first scrap baffle plate are arranged in parallel up and down;

one side of the first sliding bottom plate extends to the upper part of the first guide rail, and a first sliding block is arranged at the bottom of the first sliding bottom plate.

As a preferred embodiment: the aircraft nose removes the module including horizontal driving motor, horizontal drive screw, lateral displacement guide rail, lateral displacement seat, lateral displacement slider, vertical driving motor, vertical drive screw, vertical displacement guide rail, vertical displacement seat and vertical displacement slider, wherein:

the transverse transmission screw and the transverse displacement guide rail are both transversely arranged on a portal frame, and the transverse driving motor is arranged on the portal frame and connected with the transverse transmission screw; the transverse displacement slide block is arranged on the transverse displacement seat, the transverse position slide block is connected with the transverse displacement guide rail, and the transverse transmission screw rod drives the transverse displacement seat to move;

the vertical driving screw and the vertical displacement guide rail are vertically arranged on the transverse displacement seat, and the vertical driving motor is arranged on the transverse displacement seat and connected with the vertical driving screw; the vertical displacement slide block is arranged on the vertical displacement seat, the vertical displacement slide block is connected with the vertical displacement guide rail, and the vertical transmission screw rod drives the vertical displacement seat to move;

the machine head is arranged on the vertical displacement seat.

As a preferred embodiment: the machine tool body is provided with a fixing plate for fixedly mounting a first fixing seat, the fixing plate is horizontally arranged, one end of the fixing plate is connected to the left long section, and the other end of the fixing plate is connected to the right long section;

the first fixing seat is fixedly arranged on the fixed plate, and the first rotating shaft and the second guide rails are arranged in parallel after the first rotating shaft is inserted into the movable seat.

As a preferred embodiment: a rotating disc is installed on one side of the first movable seat, and an assembling shaft is arranged in the center of one side of the rotating disc; and an assembly hole for inserting the assembly shaft is formed in the center of one side of the first rotating shaft.

As a preferred embodiment: the surface of the assembling shaft is provided with a guide inclined plane for facilitating the insertion of the assembling shaft into the assembling hole.

As a preferred embodiment: the first rotating shaft is movably provided with a plurality of first clamp assemblies, and each first clamp assembly comprises a first base plate, a first cylinder, a first clamping block and a second clamping block; the first cylinder is movably arranged on the first base plate, the first clamping block is arranged at the output end of the first cylinder, and the second clamping block is fixedly arranged at the end part of the first base plate and forms a clamping space with the first clamping block.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme: mainly, a second guide rail is arranged in a chip removal area of a lathe body of the lathe; the fourth shaft module and the clamp can be installed by means of the arrangement of the guide rail II, so that a workbench of a traditional gantry machining center is replaced; the guide rail II can be used as a component of the assembly reference of the fourth shaft module and the fixture, and when the fourth shaft or the fixture is installed, the parallelism calibration is not needed, so that the time consumption for installing the fixture is shortened, and the machining precision of parts installed on the fourth shaft module or the fixture is not influenced by the assembly precision; the second guide rail is directly arranged in the chip removal area, and the scraps generated in the processing can directly fall into the chip removal area; compared with the traditional mode of arranging the workbench, the scrap discharge device has the advantages that the scrap can not be accumulated on the workbench, and the scrap discharge efficiency and the scrap discharge effect are good;

the left side and the right side of the top of the machine tool body are provided with a first chip blocking plate, and the first guide rail and the first rack which are arranged on the left side and the right side of the machine tool body can be used for blocking waste chips; the gantry frame can be guaranteed not to be clamped and blocked due to falling of scraps when sliding; the sliding smoothness of the portal frame can be guaranteed, and the machining precision of the portal machining center can also be guaranteed.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;

fig. 2 is a schematic perspective view of a machine tool body according to a preferred embodiment of the present invention;

fig. 3 is a schematic partial structure diagram of a machine tool body according to a preferred embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A (showing the first gear motor);

fig. 5 is a schematic perspective view of a fourth axis module according to a preferred embodiment of the present invention;

fig. 6 is a schematic perspective view of a first clamp assembly according to a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. machine tool body

101. Chip removal area 102, short profile

103. Long section bar 104 and chip removal plate

105. Chip removal port 106 and chip storage box

11. First chip blocking plate 111 and circuitous part

12. Guide rail I13 and rack I

14. Guide rail II 15 and support plate I

16. Mounting seat I161 and mounting concave position I

17. Second support plate 18 and second mounting seat

181. Mounting concave position two 19 and chip blocking plate two

110. Fixing plate

20. Portal frame

21. Sliding base plate I211 and sliding block I

22. Transverse driving motor 23 and transverse transmission screw

24. Lateral displacement guide rail 25, lateral displacement seat

26. Transverse displacement slide block 27 and vertical driving motor

28. Vertical drive screw 29, vertical displacement guide rail

210. Vertical displacement seat 220 and vertical displacement slide block

230. Coupling 240 and handpiece

30. First speed reducing motor 31 and first fixing plate

40. Fourth axis module

41. First rotating shaft 411 and assembly hole

42. First fixed seat 43 and first movable seat

431. A second sliding block 432 and a rotating disk

4321. Assembling shaft 4322, guiding inclined plane

4323. Assembly plane 4324 and clamping block

44. Drive motor I45 and slide rail III

50. First clamp assembly

51. First substrate 511 and third slider

512. Sliding groove 513 and first locking block

52. First cylinder 521, first locking spanner

53. First clamping block 54 and second clamping block

55. Clamping space

60. A second clamp assembly.

Detailed Description

Referring to fig. 1 to 6, a specific structure of a preferred embodiment of the present invention is shown, which is a gantry machining center, including a machine tool bed 10, a gantry 20, a first reduction motor 30 and a fourth shaft module 40.

As shown in fig. 1, 2 and 3, chip blocking plates 11 are arranged on the left side and the right side of the top of the machine tool body 10, and the two chip blocking plates 11 extend towards the outer side of the machine tool body 10 respectively; the left side and the right side of the machine tool body 10 are provided with a first guide rail 12 and a first rack 13, and the first guide rail 12 and the first rack 13 are both positioned below the first chip blocking plate 11; the machine tool body 10 is provided with a chip removal area 101, and a second guide rail 14 for installing the clamp and the fourth shaft module is installed in the chip removal area 101.

In the embodiment of the application, the machine tool body 10 is formed by overlapping a plurality of short profiles 102 and two long profiles 103, wherein the plurality of short profiles 102 are arranged at intervals front and back, and each short profile 102 extends left and right; two long section bars 103 are arranged at left and right intervals, each long section bar 103 extends forwards and backwards, one long section bar 103 is connected to the left ends of the plurality of short section bars 102, the other long section bar 103 is connected to the right ends of the plurality of short section bars 102, and the joints of the long section bars 103 and the short section bars 102 are connected through angle irons or directly connected in a nut and bolt locking mode. The chip removal area 101 is enclosed by a plurality of short profiles 102 and two long profiles 103; a plurality of inclined chip removal plates 104 are arranged in the chip removal area 101, a chip removal port 105 can be formed by surrounding every two chip removal plates 104, a chip storage box 106 is arranged below the chip removal port 105 to collect waste chips, the waste chips are collected in a free-falling mode, structures such as air blowing or material removal rods are not needed to be adopted to clean the waste chips, and the whole structure of the gantry machining center can be simplified.

As shown in fig. 2 and 3, two long profiles 103 are located on the side of the chip removal area 101 and are provided with a plurality of first support plates 15 at intervals along the extending direction of the chip removal area, and a first mounting seat 16 is arranged at the top of each of the plurality of first support plates 15; the first mounting seat 16 and the long section bar are arranged at intervals, the first mounting concave position 161 used for mounting the second guide rail 14 is arranged at the top of the first mounting seat 16, the second guide rail 14 can be conveniently mounted by means of the first mounting concave position 161, and the parallelism debugging of the second guide rail can be better controlled. More specifically, a second mounting seat 18 is mounted on the outer sides of the two long sections along the extending direction of the two long sections, and the first guide rail 12 and the first rack 13 are mounted on the second mounting seat 18 and are arranged up and down; and a second chip blocking plate 19 is arranged between the first guide rail 12 and the first rack 13, the second chip blocking plate 19 extends outwards, and the extending width of the second chip blocking plate is larger than that of the first rack 13.

As shown in fig. 2 and 3, the outward extending width of the first chip blocking plate 11 at least completely covers the first guide rail 12 and the first rack 13, so that the situation that when a machining center machines products, waste chips generated by the machining center fall onto the first guide rail 12 and the first rack 13 to further affect the sliding smoothness of the portal frame is avoided, and the sliding reliability and the machining precision of the portal machining center can be guaranteed. In the embodiment of the application, the first chip blocking plate 11, the first guide rail 12, the second chip blocking plate 19 and the first rack 13 are arranged at intervals from top to bottom, and the first chip blocking plate 11 extends outwards to the outer side of the side where the second chip blocking plate 19 is located, that is, the first chip blocking plate 11 can completely cover the first guide rail 12, the second chip blocking plate 19 and the first rack 13 below the first chip blocking plate; and the outer side of the first chip blocking plate 11 is provided with a circuitous part 111, the circuitous part 111 can also achieve a certain chip blocking function, and meanwhile, the cutting fluid can be prevented from flowing outwards on the chip blocking plate and falling on parts such as a sliding rail I and a rack during processing, so that the smoothness of the sliding of the portal frame is further improved. A plurality of second supporting plates 17 are arranged on the outer sides of the two long sectional materials 103 at intervals along the extending direction of the two long sectional materials, and a second mounting seat 18 is arranged on the second supporting plates 17; the top of the second mounting seat 18 is provided with a second mounting concave 181, and the first guide rail 13 is mounted in the second mounting concave 181; the first rack 13 is arranged on the side surface of the second fixed seat 18 and is positioned at the middle-lower position of the second fixed seat 18; the second chip blocking plate 19 is mounted on the side surface of the second mounting seat 18 and is located at the middle-upper position of the second mounting seat 18.

As shown in fig. 4, a first sliding bottom plate 21 is installed at the bottom of the left side and the right side of the portal frame 20, and a first sliding block 211 for connecting with the first guide rail 12 is installed on the first sliding bottom plate 21; the gantry is provided with a handpiece moving module and a handpiece 240 mounted on the handpiece moving module. In the embodiment of the application, the first sliding base plate 21 is horizontally arranged, one side of the first sliding base plate 21 extends to the upper side of the first guide rail 12, the first sliding block 211 is installed at the bottom of the first sliding base plate 21, and after the first sliding block 211 is connected with the first guide rail 12, the first sliding base plate 21, the first chip blocking plate 11 and the second chip blocking plate 19 are arranged in parallel up and down.

The machine head moving module comprises a transverse driving motor 22, a transverse transmission screw 23, a transverse displacement guide rail 24, a transverse displacement seat 25, a transverse displacement slide block 26, a vertical driving motor 27, a vertical transmission screw 28, a vertical displacement guide rail 29, a vertical displacement seat 210 and a vertical displacement slide block 220; specifically, the transverse transmission screw and the transverse displacement guide rail are both transversely arranged on a portal frame, and the transverse driving motor is arranged on the portal frame and connected with the transverse transmission screw; the transverse displacement slide block is arranged on the transverse displacement seat, the transverse position slide block is connected with the transverse displacement guide rail, and the transverse transmission screw rod drives the transverse displacement seat to move; the vertical driving screw and the vertical displacement guide rail are vertically arranged on the transverse displacement seat, and the vertical driving motor is arranged on the transverse displacement seat and connected with the vertical driving screw; the vertical displacement slide block is arranged on the vertical displacement seat, the vertical displacement slide block is connected with the vertical displacement guide rail, and the vertical transmission screw rod drives the vertical displacement seat to move; the machine head is arranged on the vertical displacement seat. In order to simplify the overall structure of the handpiece moving module, the transverse driving motor 22 and the transverse transmission screw 23, and the vertical driving motor 27 and the vertical transmission screw 28 are connected by a coupler 230; compared with the connection mode of a gear rack or a chain wheel or the like, the displacement precision of the gear rack or the chain wheel is high.

As shown in fig. 4, the first decelerating motor 30 is used for driving the gantry 20 to move; in the embodiment of the present application, the first gear motor 30 is provided with a first fixing plate 31, the first fixing plate 31 is vertically installed at the bottom of the first sliding bottom plate 21, the first gear motor 30 is installed at the first fixing plate 31, and a first gear (not shown) connected with the first rack 13 is installed at an output shaft of the first gear motor. The first gear is a helical gear, and the first rack is a helical rack, so that the transmission force and the transmission stability of the gear rack can be improved.

As shown in fig. 5, the fourth shaft module 40 includes a first rotating shaft 41, a first fixed seat 42, a first movable seat 43, and a first driving motor 44; the first fixed seat 42 is fixedly arranged on the machine tool body 10, and the bottom of the first movable seat 43 is provided with a second sliding block 431 movably connected to the second guide rail 14; one end of the first rotating shaft 41 is rotatably connected to the fixed seat 42, the other end of the first rotating shaft is connected with the movable seat 43 in a plugging and unplugging manner, and the first driving motor 44 is installed on the first fixed seat 42 and connected with the first rotating shaft 41. In the embodiment of the present application, the machine tool body 10 is provided with a fixing plate 110 for fixedly mounting a fixing seat i 42, the fixing plate 110 is horizontally disposed, and one end of the fixing plate 110 is connected to the left long section 103, and the other end of the fixing plate is connected to the right long section 103; the first fixed seat 42 is fixedly mounted on the fixed plate 110 in a bolt screwing mode to form a detachable arrangement, and after the first rotating shaft 41 is inserted into the first movable seat 43, the first rotating shaft 41 and the two second guide rails 14 are in a parallel arrangement state. Therefore, the first movable seat is arranged, the first rotating shaft is connected to the second movable seat in a plugging and unplugging mode, and the second movable seat can move in the second guide rail through the second sliding block; therefore, the assembly parallelism between the second sliding block and the second guide rail can be used as the assembly reference of the fourth shaft module; when installing the fourth shaft module at every turn, only with the rotation axis with the sliding seat plug be connected can let rotation axis and guide rail two obtain more accurate depth of parallelism, do not need the operation workman to carry out the debugging of depth of parallelism, shorten the assembly consuming time, labour saving and time saving.

In connection, a rotating disc 432 is installed on one side of the first movable seat 43, and an assembling shaft 4321 is arranged in the center of one side of the rotating disc 432; the center of one side of the first rotating shaft 41 is provided with an assembling hole 411, and when the first rotating shaft 41 is installed, the assembling hole 411 of the first rotating shaft 41 is aligned to the assembling shaft 4321 and inserted, so that the movable seat 43 and the first rotating shaft 41 can be connected in a plugging and pulling mode. In order to make the insertion and extraction connection between the first rotating shaft 41 and the first movable seat 43 smoother, the surface of the assembling shaft 4321 is provided with a guiding inclined surface 4322. The rotating disc 432 is provided with an assembling plane 4323, the assembling plane 4323 is provided with a clamping block 4324, and the clamping block 4324 is screwed on the assembling plane 4323 through a bolt; the top surface of the first rotating shaft 41 is flush with the assembling plane 4323, and after the first rotating shaft 41 is connected with the first movable seat 43, the clamping block 4324 can selectively abut against the top surface of the first rotating shaft 41 and the assembling plane 4323; therefore, the first rotating shaft 41 can not be disconnected with the first movable seat 43 during transmission.

As shown in fig. 6, a plurality of first clamp assemblies 50 are movably mounted on the first rotating shaft 41, and each first clamp assembly 50 includes a first base plate 51, a first air cylinder 52, a first clamping block 53 and a second clamping block 54; in the embodiment of the present application, the first cylinder 52 is movably installed on the first base plate 51, the first clamping block 53 is installed at the output end of the first cylinder 52, and the second clamping block 54 is fixedly installed at the end of the first base plate 51 and forms a clamping space 55 with the first clamping block 53. Specifically, a third sliding rail 45 is mounted on each of the left side surface and the right side surface of the first rotating shaft 41, a third sliding block 511 is mounted at the bottom of the first substrate 51, and the third sliding block 511 is connected with the third sliding rail 45 in a sliding manner; the first base plate 51 is provided with a sliding groove 512, and a first locking block 513 is movably mounted in the sliding groove 512; a first locking wrench 521 is screwed in the first cylinder 52, and a threaded end of the first locking wrench 521 is screwed in the first locking block 513; after the first cylinder 52 is adjusted in position, the first cylinder 52 may be clamped in the first base plate 51 by rotating the first locking wrench 521 so that the first locking wrench 521 and the first locking block 513. When the first clamp assembly is used, the first clamping block and the second clamping block can obtain a space capable of clamping a workpiece to be machined by adjusting the displacement of the first air cylinder, the clamped workpiece can be taken out when the first air cylinder drives the first clamping block to retract, and the distance for clamping the workpiece when the first air cylinder drives the first clamping block to extend is accurate. Therefore, the first cylinder can be slidably mounted on the first base plate, the clamping space can be adjusted in a larger range, workpieces of various sizes can be clamped in an adaptive mode to be machined, and the application range is wider. Besides the way of the first locking handle, the fixing way of the first cylinder on the first base plate can also adopt the way of the pin and the pin hole to limit the specific position of the first cylinder on the first base plate.

A plurality of second clamp assemblies are arranged on the second guide rail of the machine tool body except for the area for installing the fourth shaft module, and the general structure of the second clamp assemblies is the same as that of the first clamp assemblies, so that the description is not repeated; the difference lies in that the base plate and the cylinder in the second clamp component slide by adopting a connection mode of a slide rail and a slide block.

The utility model discloses a design focus lies in: mainly, a second guide rail is arranged in a chip removal area of a lathe body of the lathe; the fourth shaft module and the clamp can be installed by means of the arrangement of the guide rail II, so that a workbench of a traditional gantry machining center is replaced; the guide rail II can be used as a component of the assembly reference of the fourth shaft module and the fixture, and when the fourth shaft or the fixture is installed, the parallelism calibration is not needed, so that the time consumption for installing the fixture is shortened, and the machining precision of parts installed on the fourth shaft module or the fixture is not influenced by the assembly precision; the second guide rail is directly arranged in the chip removal area, and the scraps generated in the processing can directly fall into the chip removal area; compared with the traditional mode of arranging the workbench, the scrap discharge device has the advantages that the scrap can not be accumulated on the workbench, and the scrap discharge efficiency and the scrap discharge effect are good;

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a longmen machining center which characterized in that: comprises that

the first speed reducing motor is used for driving the portal frame to move and mounted on the first fixing plate, the first fixing plate is mounted on the first sliding bottom plate, and a first gear connected with the first rack is mounted on an output shaft of the first speed reducing motor;

2. The gantry machining center according to claim 1, wherein: the machine tool body comprises a plurality of short sectional materials and two long sectional materials;

the plurality of short sectional materials are arranged at intervals front and back, and each short sectional material extends left and right;

3. The gantry machining center according to claim 2, wherein: the two long sections are located on the side of the chip removal area and are provided with a plurality of first supporting plates at intervals along the extending direction of the chip removal area, the tops of the first supporting plates are provided with a first mounting seat, the first mounting seat and the long sections are arranged at intervals, and the tops of the first mounting seats are provided with first mounting concave positions for mounting a second guide rail;

the outer sides of the two long sections are provided with a second mounting seat along the extending direction of the two long sections, and the first guide rail and the first rack are both arranged on the second mounting seat and are arranged up and down; and a second chip blocking plate is arranged between the first guide rail and the first rack, the second chip blocking plate extends towards the outer side, and the extending width of the second chip blocking plate is larger than that of the first rack.

4. The gantry machining center according to claim 1, wherein: the first sliding bottom plate and the first scrap baffle plate are arranged in parallel up and down;

5. The gantry machining center according to claim 1, wherein: the aircraft nose removes the module including horizontal driving motor, horizontal drive screw, lateral displacement guide rail, lateral displacement seat, lateral displacement slider, vertical driving motor, vertical drive screw, vertical displacement guide rail, vertical displacement seat and vertical displacement slider, wherein:

the transverse transmission screw and the transverse displacement guide rail are both transversely arranged on a portal frame, and the transverse driving motor is arranged on the portal frame and connected with the transverse transmission screw; the transverse displacement sliding block is arranged on the transverse displacement seat, the transverse displacement sliding block is connected with the transverse displacement guide rail, and the transverse transmission screw rod drives the transverse displacement seat to move;

the machine head is arranged on the vertical displacement seat.

6. The gantry machining center according to claim 1, wherein: the machine tool body is provided with a fixing plate for fixedly mounting a first fixing seat, the fixing plate is horizontally arranged, one end of the fixing plate is connected to the left long section, and the other end of the fixing plate is connected to the right long section;

7. The gantry machining center according to claim 1, wherein: a rotating disc is installed on one side of the first movable seat, and an assembling shaft is arranged in the center of one side of the rotating disc; and an assembly hole for inserting the assembly shaft is formed in the center of one side of the first rotating shaft.

8. The gantry machining center according to claim 7, wherein: the surface of the assembling shaft is provided with a guide inclined plane for facilitating the insertion of the assembling shaft into the assembling hole.

9. The gantry machining center according to claim 1, wherein: the first rotating shaft is movably provided with a plurality of first clamp assemblies, and each first clamp assembly comprises a first base plate, a first cylinder, a first clamping block and a second clamping block; the first cylinder is movably arranged on the first base plate, the first clamping block is arranged at the output end of the first cylinder, and the second clamping block is fixedly arranged at the end part of the first base plate and forms a clamping space with the first clamping block.