CN215035300U

CN215035300U - Portal frame

Info

Publication number: CN215035300U
Application number: CN202023184599.9U
Authority: CN
Inventors: 赵璐; 余清华
Original assignee: Yibin Chuangshi Machinery Co ltd
Current assignee: Yibin Chuangshi Machinery Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-07
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a portal frame, which comprises a beam body and a stand column body, wherein the beam body is arranged on the upper part of the stand column body, and the beam body and the stand column body are both of a cavity structure; this internal strengthening rib subassembly A that is equipped with of crossbeam, strengthening rib subassembly A includes: first reinforcing ribs are uniformly distributed on the front wall of the inner cavity of the beam body along the length direction of the beam body; the second reinforcing ribs are arranged on the upper wall, the lower wall and the rear wall of the inner cavity of the beam body along the length direction of the beam body; the reinforcing rib plates A are arranged in the inner cavity of the beam body at intervals and connected with the front wall, the rear wall, the upper wall and the lower wall of the inner cavity of the beam body; this internal strengthening rib subassembly B that is equipped with of stand, strengthening rib subassembly B includes: the third reinforcing rib is arranged on the inner side wall of the upright post body; reinforcing rib plates B are arranged at intervals along the height direction of the upright post body; still including strengthening the foot subassembly, strengthen the foot subassembly and locate stand body outside lower part. The utility model discloses the portal frame has better bearing capacity and good mechanical properties for the portal frame more has economic nature.

Description

Portal frame

Technical Field

The utility model relates to a portal frame field, in particular to portal frame on longmen digit control machine tool.

Background

A gantry type machining center, also called a gantry numerical control machine tool, is a milling machine with a gantry frame and a horizontal long bed; the gantry type machining center can be used for machining a workpiece by one or more milling cutters at the same time, has higher machining precision and production efficiency, is suitable for machining plane slopes of large-sized workpieces in batch and mass production, and can also be used for machining space curved surfaces and some specific parts; the gantry type machining center is generally provided with a tool magazine and has an automatic tool changing function, after a workpiece is clamped, the numerical control system can control the machine tool to select a tool, replace the tool, automatically set the tool, automatically change the rotating speed of a main shaft, feed amount and the like according to different processes, various processes such as drilling, boring, milling, tapping and the like can be continuously completed, and the gantry type machining center has good economic benefits for parts which are complex in machining shape, high in precision requirement and frequent in variety replacement.

In the existing gantry machining center, a gantry is one of main parts, the gantry generally comprises a beam arranged on the gantry and an upright column arranged on the side part of the beam, and the beam is used as a Y-axis base part of a machine tool and not only bears the weight of a sliding saddle and a ram part, but also needs to bear the cutting force during machining of the machine tool, so that the rigidity and the strength of the beam directly influence the overall machining performance and the precision of the machine tool; under the general condition, the larger the span of the cross beam of the gantry numerical control machine tool is, the larger the deformation caused by the self weight of the cross beam and the movement of a sliding saddle on the cross beam is, and at the moment, if the structural rigidity of the cross beam is insufficient, the cross beam of the gantry numerical control machine tool vibrates during processing to cause the processing precision to be poor; the stand is as one of the key parts of longmen lathe, is the main part that bears of longmen frame construction of planer-type machining center lathe, and in its work and use, not only receive the forward pressure that comes from parts such as crossbeam, saddle, still receive bending and torsional moment, in traditional design, in order to guarantee the structural rigidity and the intensity of stand, all thicken the processing to stand four walls usually, so, stand whole weight increases excessively, and expenses such as assembly, transportation increase. Aiming at the problems, the whole structure of the portal frame of the portal numerical control machine tool needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a portal frame, which simulates the integral stress condition of the portal frame during working through finite element analysis, optimizes the cross section shape of an upper cross beam and the distribution of internal reinforcing ribs of the portal frame, and greatly improves the bending deformation condition of a large-span cross beam; meanwhile, a reasonable cross section shape and a unique rib arrangement mode are planned for the column part of the gantry, so that the stress condition of the gantry in all directions during working is improved, and the stability of the machining precision of the gantry numerical control machine tool is ensured.

In order to achieve the purpose, the utility model provides a portal frame, which comprises a beam body and a stand column body, wherein the beam body is arranged at the upper part of the stand column body, and the beam body and the stand column body are both in a cavity structure;

this internal strengthening rib subassembly A that is equipped with of crossbeam, strengthening rib subassembly A includes: first reinforcing ribs are uniformly distributed on the front wall of the inner cavity of the beam body along the length direction of the beam body; the second reinforcing ribs are arranged on the upper wall, the lower wall and the rear wall of the inner cavity of the beam body along the length direction of the beam body; the reinforcing rib plates A are arranged in the inner cavity of the beam body at intervals and connected with the front wall, the rear wall, the upper wall and the lower wall of the inner cavity of the beam body;

this internal strengthening rib subassembly B that is equipped with of stand, strengthening rib subassembly B includes: the third reinforcing rib is arranged on the inner side wall of the upright post body; reinforcing rib plates B are arranged at intervals along the height direction of the upright post body; still including strengthening the foot subassembly, strengthen the foot subassembly and locate stand body outside lower part.

The utility model discloses one of them preferred scheme does: the beam body comprises a beam front plate, a beam back plate, a beam top plate and a beam bottom plate, and the beam front plate, the beam back plate, the beam top plate, the beam bottom plate and reinforcing rib plates A arranged on two sides of the beam body are enclosed; the bottom plate of the cross beam is of an arch structure with the middle part protruding upwards.

The utility model discloses one of them preferred scheme does: first grooves are formed in the outer side of the top plate of the cross beam at intervals, and first lightening holes are formed in the first grooves; second grooves are formed in the outer side of the beam back plate at intervals, and second lightening holes are formed in the second grooves.

The utility model discloses one of them preferred scheme does: the stand body includes left side board, right side board, stand front bezel, stand backplate, stand bottom plate and stand roof, left side board, right side board, stand front bezel, stand backplate, stand bottom plate and stand roof enclose to be synthetic the stand body.

The utility model discloses one of them preferred scheme does: the upright post is characterized in that a first mounting hole is formed in the upright post bottom plate, and the lower parts of the left side plate, the right side plate, the upright post front plate and the upright post back plate are inwards concave to be provided with a first mounting groove matched with the first mounting hole in quantity.

The utility model discloses one of them preferred scheme does: the stand roof is provided with a second mounting hole, and the upper parts of the left side plate, the right side plate, the stand front plate and the stand back plate are inwards concave to be provided with second mounting grooves matched with the second mounting holes in quantity.

The utility model discloses one of them preferred scheme does: the reinforcing foot assembly comprises a front foot, and the front foot is arranged on the lower part of the front side of the front plate of the upright post.

The utility model discloses one of them preferred scheme does: the reinforcing foot assembly further comprises a mounting frame and a plurality of reinforcing pieces, and the mounting frame is arranged on the front part of the front foot; the reinforcing pieces are arranged on the upper parts of the front feet at intervals, the lower parts of the reinforcing pieces are fixedly connected with the front feet, and one side part of each reinforcing piece is fixedly connected with the mounting frame; and a third mounting hole is formed in the mounting frame.

The utility model discloses one of them preferred scheme does: the first reinforcing ribs are in a shape of Chinese character 'mi', and adjacent first reinforcing ribs are connected; the reinforcing rib plate A and the reinforcing rib plate B are X-shaped rib plates, and the side parts of the reinforcing rib plates B are respectively connected with the inner side wall of the upright post body.

The utility model discloses one of them preferred scheme does: and the beam front plate and the beam back plate are provided with beam through holes in a penetrating manner.

The utility model discloses one of them preferred scheme does: and the side part and the top part of the beam body are provided with wiring ports.

The utility model discloses one of them preferred scheme does: the side part of the upright post body is provided with a first upright post perforation and a second upright post perforation in a penetrating manner, the first upright post perforation is arranged at the upper end of the side part of the upright post body, and the second upright post perforation is arranged at the lower end of the side part of the upright post body.

The utility model discloses one of them preferred scheme does: the left side board, the right side board and the stand back board are inwards concave to form a groove structure, a first installation part is arranged on the left side board or the right side board, and a second installation part is arranged on the stand back board.

The utility model discloses one of them preferred scheme does: the front side of the beam front plate is provided with a slide rail, one end of the front side of the beam front plate is provided with a bearing installation part, and the other end of the front side of the beam front plate is provided with a motor installation part; the front side of the beam front plate is provided with a first mounting seat which is matched with the beam front plate and used for fixing a spindle box; the beam top plate is provided with a second mounting seat convenient for moving the beam body; and a third mounting seat for mounting the ladder stand is arranged on the beam back plate.

The utility model discloses one of them preferred scheme does: and fixed mounting seats matched with the second mounting holes are arranged at the two ends of the lower part of the beam body.

The utility model provides a portal frame's beneficial effect as follows:

the portal frame upper beam body is of a cavity structure, and the reinforcing rib component A is arranged in the beam body, so that the weight of the beam is reduced, and the stress condition of the beam can be improved;

secondly, the distribution of reinforcing ribs inside the portal frame beam body is optimized, the first reinforcing ribs and the second reinforcing ribs are arranged on the inner wall of the beam body, and the reinforcing rib plates A are arranged in the inner cavity of the beam body at intervals, so that the bending deformation condition of the large-span beam is improved, the integral bearing capacity of the beam is improved, and the beam has good mechanical properties;

thirdly, the upright post body of the portal frame is of a cavity structure, and under the condition that the four walls of the upright post body are not thickened, the four walls arranged in the upright post body are provided with third reinforcing ribs and reinforcing rib plates B which are connected with the four walls of the upright post body, so that the structural integrity of the four walls of the upright post is realized, and the structural rigidity of the upright post in all directions such as bending resistance, torsion resistance, compression resistance and the like is fully enhanced;

fourthly, a reinforcing foot component is arranged at the lower part of the upright post body, and the integral shape of the upright post body is L-shaped, so that the upright post body is convenient to be connected with a machine tool body and a beam body, and the function of a support column of the upright post body in a portal frame is fully exerted;

the utility model discloses the portal frame has better bearing capacity and good mechanical properties for the portal frame more has economic nature.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic diagram of a rear side three-dimensional structure of a beam of an embodiment of the portal frame of the present invention;

FIG. 2 is a schematic view of an inner side three-dimensional structure of a cross section of a gantry of the present invention;

fig. 3 is a schematic front side three-dimensional structure view of a beam according to an embodiment of the portal frame of the present invention;

fig. 4 is a schematic front side three-dimensional structure view of a column of an embodiment of the portal frame of the present invention;

fig. 5 is a schematic diagram of a rear side three-dimensional structure of a column of an embodiment of the portal frame of the present invention;

FIG. 6 is a schematic view of an inside three-dimensional structure of a cross section of a column of an embodiment of the portal frame of the present invention;

the reference numbers illustrate:

10-a beam body, 11-a beam front plate, 111-a slide rail, 112-a bearing mounting part, 113-a motor mounting part, 114-a first mounting seat, 12-a beam back plate, 121-a second groove, 122-a second lightening hole, 123-a third mounting seat, 13-a beam top plate, 131-a first groove, 132-a first lightening hole, 133-a second mounting seat, 14-a beam bottom plate, 100-a reinforcing rib component A, 101-a first reinforcing rib, 102-a second reinforcing rib, 103-a reinforcing rib plate A, 15-a beam perforation, 16-a wiring port and 17-a fixed mounting seat;

20-an upright post body, 21-an upright post front plate, 22-an upright post back plate, 23-an upright post bottom plate, 231-a first mounting hole, 232-a first mounting groove, 24-an upright post top plate, 241-a second mounting hole, 242-a second mounting groove, 200-a reinforcing rib component B, 201-a third reinforcing rib, 202-a reinforcing rib plate B, 25-a first upright post through hole, 26-a second upright post through hole, 27-a first mounting part and 28-a second mounting part;

30-reinforcing foot component, 31-front foot, 32-mounting frame, 321-third mounting hole, 33-reinforcing piece.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "mounted to" another element, it can be directly mounted to the other element or intervening elements may also be present.

Furthermore, it should be understood that all directional indicators (such as upper, lower, left, right, middle … …) in the embodiments are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed correspondingly; the terms "first," "second," and the like are used herein to distinguish one structural element from another. These terms are merely for convenience of description and simplicity of description, and are not to be construed as limiting the present invention.

Examples

The embodiment discloses a portal frame, and is concrete, and this embodiment portal frame is the portal frame on the planer-type machining center, and for improving holistic rigidity and intensity of portal frame, this design passes through the stress condition of finite element analysis simulation portal frame entablature and stand at the during operation, has planned reasonable cross sectional shape for crossbeam and stand part to and unique cloth muscle mode. The stress condition of the numerical control machine gantry frame in all directions during working is improved, and the stability of the machine tool precision is ensured.

In the portal frame of the embodiment, the portal frame is arranged on a portal numerical control machine tool, and the structure in the embodiment refers to the attached figures 1 to 6; the portal frame comprises a beam body 10 and an upright post body 20, the gantry numerical control machine comprises a processing table, the upright post body 20 is fixedly arranged on two sides of the processing table, two ends of the lower part of the beam body 10 are respectively arranged on the upper parts of the upright post bodies 20 on two sides of the processing table, the beam body 10 and the upright post bodies 20 are both of a cavity structure, the cavity structure can prevent the overall weight of the portal frame from being too large, and the material cost, the transportation cost and the like can be reduced;

in this embodiment, a reinforcing rib assembly a100 is provided in the beam body 10, and the reinforcing rib assembly a100 includes: the first reinforcing ribs 101 are uniformly distributed on the front wall of the inner cavity of the beam body 10 along the length direction of the beam body 10; the second reinforcing ribs 102 are arranged on the upper wall, the lower wall and the rear wall of the inner cavity of the beam body 10 along the length direction of the beam body 10; the reinforcing rib plates A103 are arranged in the inner cavity of the beam body 10 at intervals and connected with the front wall, the rear wall, the upper wall and the lower wall of the inner cavity of the beam body 10;

in one preferred embodiment of this embodiment, the first reinforcing ribs 101 are in a shape like a Chinese character 'mi', the adjacent first reinforcing ribs 101 are connected, and the first reinforcing ribs 101 are uniformly distributed on the front wall of the inner cavity of the beam body 10 along the length direction of the beam body 10, specifically, the first reinforcing ribs 101 include connecting strips and connecting pieces arranged in the middle of the first reinforcing ribs 101, and the connecting strips are connected through the connecting pieces, that is, the connecting pieces are used as centers, and each connecting strip is connected with the connecting pieces at a certain angle, so that the first reinforcing ribs 101 are in a structure like a Chinese character 'mi' as a whole; the second reinforcing ribs 102 are arranged on the upper wall, the lower wall and the rear wall of the inner cavity of the beam body 10 along the length direction of the beam body 10, the second reinforcing ribs 102 are reinforcing ribs, at least one second reinforcing rib 102 is arranged, and when one second reinforcing rib 102 is arranged, the second reinforcing rib 102 is arranged on the upper wall, the lower wall and the rear wall of the inner cavity of the beam body 10 along the middle part of the length direction of the beam body 10; when there are a plurality of second reinforcing ribs 102, for example, two or three second reinforcing ribs 102 may be arranged at intervals, and the second reinforcing ribs 102 are arranged at intervals on the upper wall, the lower wall and the rear wall of the inner cavity of the beam body 10; in this embodiment, the reinforcing rib plate a103 is an X-shaped rib plate, specifically, the reinforcing rib plate a103 is integrally a plate-shaped structure, the middle portion of the reinforcing rib plate is an X-shaped rib, the reinforcing rib plate a103 is disposed at an interval in the inner cavity of the beam body 10, and is connected to the front wall, the rear wall, the upper wall, the lower wall of the inner cavity of the beam body 10, the first reinforcing rib 101, and the second reinforcing rib 102, so that the stress condition of the beam can be improved while the weight of the beam is reduced, and the bearing capacity is provided for the structural member disposed on the beam body 10, so that the beam has good mechanical properties as a whole.

In this embodiment, a reinforcing rib assembly B200 is provided in the column body 20, and the reinforcing rib assembly B200 includes: the third reinforcing rib 201 is arranged on the inner side wall of the upright post body 20; reinforcing rib plates B202 arranged at intervals along the height direction of the upright post body 20; the upright post further comprises a reinforcing foot component 30, wherein the reinforcing foot component 30 is arranged at the lower part of the outer side of the upright post body 20.

In one preferred scheme of this embodiment, each inner sidewall of the column body 20 is provided with a third reinforcing rib 201, specifically, the third reinforcing rib 201 includes a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is provided in the middle of each inner sidewall of the column body 20 along the height direction of the column body 20, the second reinforcing rib is in an X shape, the second reinforcing ribs 102 are provided in each inner sidewall of the column body 20 at intervals along the height direction of the column body 20, and the middle of the second reinforcing rib is connected to the first reinforcing rib; in this embodiment, the reinforcing rib plate B202 is an X-shaped rib plate, specifically, the reinforcing rib plate B202 is a plate-shaped structure as a whole, the middle part thereof is an X-shaped rib, and the reinforcing rib plates B202 are arranged at intervals along the height direction of the column body 20 and connected with each inner side wall of the column body 20 and the third reinforcing rib 201; the upright column body 20 of the embodiment is of a cavity structure, and under the condition that four walls of the upright column body 20 are not thickened, the structural integrity of the four walls of the upright column on the portal frame is realized, and the structural rigidity of the portal frame upright column in all directions, such as bending resistance, torsion resistance, compression resistance and the like, is fully enhanced.

In this embodiment, the reinforcing leg assembly 30 is disposed on the lower portion of the outer side of the column body 20, so that the overall shape of the gantry column is L-shaped, the cross sections of the column body 20 and the beam body 10 are square, and the column body 20 is structurally configured to facilitate connection with the bed of the numerical control gantry machine and the beam body 10, thereby fully playing a role of a support in the gantry frame.

One of the preferred schemes in this embodiment is: the beam body 10 comprises a beam front plate 11, a beam back plate 12, a beam top plate 13 and a beam bottom plate 14, wherein the beam front plate 11, the beam back plate 12, the beam top plate 13, the beam bottom plate 14 and reinforcing rib plates A103 arranged on two sides of the beam body 10 are enclosed; in this embodiment, the beam body 10 and the stiffener assembly a100 disposed on the beam body 10 are integrally cast, and the beam body 10 is preferably made of a metal alloy material, which may be made of a gray cast iron material; in this embodiment, the beam body 10 and the stiffener assembly a100 disposed on the beam body 10 are integrally cast, or may be formed in other manners, for example, after the beam front plate 11 and the first stiffener 101 are integrally cast, they are welded to other structures; in this embodiment, the beam bottom plate 14 is an arch structure with an upward convex middle portion, that is, when viewed from the front, the lower portion of the gantry beam is an arch structure, so that the weight of the gantry beam is reduced, and the stress condition of the beam body 10 is improved.

One of the preferred schemes in this embodiment is: a plurality of first grooves 131 are formed in the outer side of the beam top plate 13 at intervals, and first lightening holes 132 are formed in the first grooves 131; a plurality of second grooves 121 are arranged on the outer side of the beam back plate 12 at intervals, and second lightening holes 122 are arranged on the second grooves 121; the first lightening holes 132 and the second lightening holes 122 on the beam body 10 of the embodiment can greatly lighten the weight of castings, improve the dead weight of the portal frame beam, and meanwhile, the first grooves 131 are formed in the beam top plate 13 and the second grooves 121 are formed in the beam back plate 12, so that the post-processing of the beam top plate 13 and the beam back plate 12 can be greatly reduced.

One of the preferred schemes in this embodiment is: the upright post body 20 comprises a left side plate, a right side plate, an upright post front plate 21, an upright post back plate 22, an upright post bottom plate 23 and an upright post top plate 24, wherein the left side plate, the right side plate, the upright post front plate 21, the upright post back plate 22, the upright post bottom plate 23 and the upright post top plate 24 are enclosed to form the upright post body 20.

In this embodiment, the pillar body 20 and the reinforcing rib assembly B200 disposed on the pillar body 20 are preferably integrally cast, and the pillar body 20 is preferably made of a metal alloy material, which may be made of a gray cast iron material; the column body 20 and the reinforcing rib assembly B200 provided on the column body 20 according to the embodiment are integrally cast, and may be formed by other methods such as welding, screwing, and the like.

One of the preferred schemes in this embodiment is: the upright column bottom plate 23 is provided with a first mounting hole 231, the first mounting hole 231 is arranged at the upper side part of the upright column bottom plate 23, and the lower parts of the left side plate, the right side plate, the upright column front plate 21 and the upright column back plate 22 are concavely provided with first mounting grooves 232 the number of which is matched with that of the first mounting hole 231; in this embodiment, the first mounting hole 231 is a threaded hole, the column bottom plate 23 can be fixed on the bed of the gantry numerical control machine tool by a bolt, and the bolt can be prevented from being exposed on the outer side of the column body 20 by the first mounting groove 232;

in this embodiment, a second mounting hole 241 is disposed on the top plate 24, and second mounting grooves 242, the number of which is matched with the second mounting hole 241, are recessed in the upper portions of the left side plate, the right side plate, the front plate 21 and the back plate 22. Further, in this embodiment, the two ends of the lower portion of the beam body 10 are provided with the fixed mounting seats 17 matched with the second mounting holes 241, and the fixed mounting seats 17 are provided with the third mounting holes 321 matched with the second mounting holes 241, it can be understood that the second mounting holes 241 and the third mounting holes 321 are threaded holes, the beam body 10 can be installed on the column body 20 by connecting the first mounting holes 231 and the second mounting holes 241 through bolts, and the bolts can be prevented from being exposed on the outer side of the column body 20 through the second mounting grooves 242.

The utility model discloses one of them preferred scheme does: the reinforcing foot assembly 30 comprises a front foot 31, the front foot 31 is arranged at the lower part of the front side of the upright column front plate 21, and the front foot 31 can be integrally cast with the upright column body 20 or connected with the upright column body 20 by welding, screw connection and the like; in the portal frame of this embodiment, the fixed mounting seats 17 are arranged on the left and right sides of the lower portion of the beam body 10, and the fixed mounting seats 17 are connected with the column bodies 20 arranged on the two sides of the numerical control machine tool body, two surfaces of two opposite column bodies 20 in this embodiment are front side surfaces of the column bodies 20, namely front plates of the column bodies 20, in this embodiment, the front legs 31 are arranged on the lower portion of the front side of the column front plate 21, and the overall shape of the column on the portal frame is L-shaped, so that the connection with the machine tool body and the beam body 10 is facilitated.

In this embodiment, the reinforced foot assembly 30 further includes a mounting frame 32 and a plurality of reinforcing members 33, the mounting frame 32 is disposed on the front portion of the front foot 31, and in this embodiment, the mounting frame 32 is preferably disposed on the front portion of the front foot 31 by means of bolt connection, or may be disposed on the front portion of the front foot 31 by means of welding or the like; the reinforcing pieces 33 are arranged on the upper part of the front foot 31 at intervals, the lower parts of the reinforcing pieces 33 are fixedly connected with the front foot 31, and one side part of the reinforcing pieces 33 is fixedly connected with the mounting frame 32; a third mounting hole 321 is formed in the mounting frame 32; in this embodiment, the reinforcing member 33 is in the shape of a right triangle, the right-angled side of the lower side of the reinforcing member is fixedly connected with the front leg 31, and the reinforcing member can be connected in a welding manner, the right-angled side of the reinforcing member is fixedly connected with the mounting frame 32, and meanwhile, the mounting frame 32 can be connected with the front part of the front leg 31 through welding or screw connection; the third mounting hole 321 is preferably a threaded mounting hole, so as to facilitate connection with a machining table of a gantry numerical control machine tool, and it can be understood that fourth mounting holes matched with the third mounting hole 321 are formed in two sides of the machining table, and the fixed connection with the machine tool can be realized through bolt connection.

One of the preferred schemes in this embodiment is: the beam top plate 13 is provided with a second mounting seat 133 which is convenient for moving the beam body 10; furthermore, the beam front plate 11 and the beam back plate 12 are provided with beam through holes 15 in a penetrating manner; second mount pad 133 and crossbeam front bezel 11, crossbeam backplate 12 is gone up the effect of crossbeam perforation 15, be for the convenience of moving the portal frame crossbeam, add man-hour to crossbeam body 10 in earlier stage, move it through second mount pad 133, be equipped with the screw hole on the second mount pad 133 promptly, carry out threaded connection through the mobile device with the external world, can realize moving it, the later stage is owing to installed other components on crossbeam body 10, the whole weight of portal frame crossbeam becomes heavy, for moving the portal frame crossbeam, and the later stage is for the convenience of installing it on stand body 20, be realized through crossbeam perforation 15, if can pass crossbeam perforation 15 through the lifting rope, realize the removal to the portal frame crossbeam.

One of the preferred schemes in this embodiment is: the side part and the top part of the beam body 10 are provided with wiring ports 16; the thread passing port 16 is arranged to facilitate the functions of pipe threading, thread passing and the like.

The present embodiment is the same: a first upright post through hole 25 and a second upright post through hole 26 for moving the upright post body 20 and routing are arranged in the lateral part of the upright post body 20 in a penetrating manner, the first upright post through hole 25 is arranged at the upper end of the lateral part of the upright post body 20, and the second upright post through hole 26 is arranged at the lower end of the lateral part of the upright post body 20; the first and second post through

holes

25 and 26 are for facilitating movement of the post body 20 and for facilitating threading, etc.

One of the preferred schemes in this embodiment is: the left side plate, the right side plate and the upright post back plate 22 are inwards concave to form a groove structure, a first mounting part 27 is arranged on the left side plate or the right side plate, and a second mounting part 28 is arranged on the back plate; this embodiment left side board, the right side board, stand backplate 22 is inwards sunken to form groove structure, be for the convenience to process it, and simultaneously, be equipped with first installation department 27 on groove structure on left side board or the right side board, be equipped with second installation department 28 on stand backplate 22 groove structure, groove structure on left side board or the right side board, and stand backplate 22 groove structure upper portion arch is equipped with the installation department, the thickness of installation department is generally about 5CM, through the screw hole of beating on the installation department, can be used for fixed other structural component, the first installation department 27 of this embodiment is used for walking line box or other parts, second installation department 28 is used for fixed tool magazine subassembly or other parts.

The utility model discloses one of them preferred scheme does: the front side of the beam front plate 11 is provided with a slide rail 111, preferably, the upper and lower parts of the front side of the beam front plate 11 are provided with the slide rails 111 which are parallel to each other along the length of the front side, one end of the front side of the beam front plate 11 is provided with a bearing installation part 112, the bearing installation part 112 is used for installing a bearing seat, the other end of the front side of the beam front plate 11 is provided with a motor installation part 113, and the motor installation part 113 is used for installing a motor seat; that is, in this embodiment, the main spindle box on the gantry numerical control machine tool is slidably connected with the slide rail 111 through a slide block, the bearing mounting portion 112 is connected with the mounting motor base and is provided with a screw rod, the main spindle box is connected with the screw rod through a screw rod nut, and the main spindle box can move left and right on the beam front plate 11 through the driving of the motor;

further, this embodiment, crossbeam front bezel 11 front side is equipped with the first mount pad 114 that mutually supports and be used for fixed headstock, and this embodiment crossbeam front bezel 11 front side middle part left and right sides all is equipped with first mount pad 114, and when the headstock sets up on crossbeam front bezel 11, at the in-process of transportation, the headstock can take place to remove inevitably, for preventing it from removing, carries out threaded connection with headstock and first mount pad 114 through L type connecting plate, and then realizes fixing the headstock.

In this embodiment, the beam back plate 12 is provided with a third mounting seat 123 for mounting a ladder; the gantry numerical control machine tool is high in overall structure, and when the upper structure of the gantry numerical control machine tool needs to be operated, the ladder stand is needed, so that the gantry numerical control machine tool is generally provided with the ladder stand, workers can conveniently go up and down the gantry numerical control machine tool, and the ladder stand can be fixed on the third mounting seat 123 through screw assemblies, welding and other modes.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A portal frame comprises a beam body and a stand column body, wherein the beam body is arranged at the upper part of the stand column body, and the beam body and the stand column body are both of a cavity structure; the method is characterized in that:

2. A gantry according to claim 1, wherein: the beam body comprises a beam front plate, a beam back plate, a beam top plate and a beam bottom plate, and the beam front plate, the beam back plate, the beam top plate, the beam bottom plate and reinforcing rib plates A arranged on two sides of the beam body are enclosed; the bottom plate of the cross beam is of an arch structure with the middle part protruding upwards.

3. A gantry according to claim 2, wherein: first grooves are formed in the outer side of the top plate of the cross beam at intervals, and first lightening holes are formed in the first grooves; second grooves are formed in the outer side of the beam back plate at intervals, and second lightening holes are formed in the second grooves.

4. A gantry according to claim 1, wherein: the stand body includes left side board, right side board, stand front bezel, stand backplate, stand bottom plate and stand roof, left side board, right side board, stand front bezel, stand backplate, stand bottom plate and stand roof enclose to be synthetic the stand body.

5. A gantry according to claim 4, wherein: the upright post is characterized in that a first mounting hole is formed in the upright post bottom plate, and the lower parts of the left side plate, the right side plate, the upright post front plate and the upright post back plate are inwards concave to be provided with a first mounting groove matched with the first mounting hole in quantity.

6. A gantry according to claim 5, wherein: the stand roof is provided with a second mounting hole, and the upper parts of the left side plate, the right side plate, the stand front plate and the stand back plate are inwards concave to be provided with second mounting grooves matched with the second mounting holes in quantity.

7. A gantry according to claim 4, wherein: the reinforcing foot assembly comprises a front foot, and the front foot is arranged on the lower part of the front side of the front plate of the upright post.

8. A gantry according to claim 7, wherein: the reinforcing foot assembly further comprises a mounting frame and a plurality of reinforcing pieces, and the mounting frame is arranged on the front part of the front foot; the reinforcing pieces are arranged on the upper parts of the front feet at intervals, the lower parts of the reinforcing pieces are fixedly connected with the front feet, and one side part of each reinforcing piece is fixedly connected with the mounting frame; and a third mounting hole is formed in the mounting frame.

9. A gantry according to claim 1, wherein: the first reinforcing ribs are in a shape of Chinese character 'mi', and adjacent first reinforcing ribs are connected; the reinforcing rib plate A and the reinforcing rib plate B are X-shaped rib plates, and the side parts of the reinforcing rib plates B are respectively connected with the inner side wall of the upright post body.

10. A gantry according to claim 2, wherein: and the beam front plate and the beam back plate are provided with beam through holes in a penetrating manner.

11. A gantry according to claim 10, wherein: and the side part and the top part of the beam body are provided with wiring ports.

12. A gantry according to claim 1, wherein: the side part of the upright post body is provided with a first upright post perforation and a second upright post perforation in a penetrating manner, the first upright post perforation is arranged at the upper end of the side part of the upright post body, and the second upright post perforation is arranged at the lower end of the side part of the upright post body.

13. A gantry according to claim 4, wherein: the left side board, the right side board and the stand back board are inwards concave to form a groove structure, a first installation part is arranged on the left side board or the right side board, and a second installation part is arranged on the stand back board.

14. A gantry according to claim 2, wherein: the front side of the beam front plate is provided with a slide rail, one end of the front side of the beam front plate is provided with a bearing installation part, and the other end of the front side of the beam front plate is provided with a motor installation part; the front side of the beam front plate is provided with a first mounting seat which is matched with the beam front plate and used for fixing a spindle box; the beam top plate is provided with a second mounting seat convenient for moving the beam body; and a third mounting seat for mounting the ladder stand is arranged on the beam back plate.

15. A gantry according to claim 6, wherein: and fixed mounting seats matched with the second mounting holes are arranged at the two ends of the lower part of the beam body.