CN217860183U

CN217860183U - Vertical machining center with double main shafts

Info

Publication number: CN217860183U
Application number: CN202222200538.XU
Authority: CN
Inventors: 代志高; 代建东; 冯志权; 王学林
Original assignee: Shenzhen Huaya Cnc Machinery Co ltd
Current assignee: Shenzhen Huaya Cnc Machinery Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-11-22
Anticipated expiration: 2032-08-19

Abstract

The utility model belongs to the technical field of numerical control machine tools, in particular to a double-spindle vertical machining center, which comprises a base, a workbench, a portal frame and two groups of machine heads; the workbench and the portal frame are arranged on the base, and the two groups of machine heads are oppositely arranged on the portal frame; the machine head comprises a translation electric screw rod module, a moving seat, a lifting electric screw rod module, a spindle seat, a spindle and a clamping arm type tool magazine; the translation electric screw rod module is arranged on the portal frame, the moving seat is connected to the translation electric screw rod module, the lifting electric screw rod module is vertically arranged on the moving seat, the spindle seat is connected to one side of the moving seat in a vertically sliding manner and is connected with the lifting electric screw rod module, a mounting hole is formed in the spindle seat, and the spindle is mounted in the mounting hole; the extension has been extended to the first side of removing the seat, and the extension extends to the front side of spindle drum, and the front end of extension is provided with the installation face, and arm lock formula tool magazine fixed mounting is on the installation face, and two arm lock formula tool magazines utensil are the contained angle setting.

Description

Double-spindle vertical machining center

Technical Field

The utility model belongs to the technical field of the digit control machine tool, especially, relate to a two main shaft vertical machining centers.

Background

The machining center is a numerical control mechanical cutting device, has high automation degree and high machining precision, and is widely applied to mechanical cutting machining at present. Machining centers generally include vertical machining centers, horizontal machining centers, and complex machining centers. The drilling and milling center in the vertical machining center has high machining efficiency and is widely applied to drilling and milling machining of small parts. At present, most of drilling and milling centers adopt a clamping arm type tool magazine which is shaped like a disc and is arranged on the front side of a main shaft. For example, a multi-station numerical control machining center for sectional materials disclosed in chinese patent publication No. CN 214642235U.

In order to improve the machining efficiency of machining centers, many machining centers currently have two spindles, and the two spindles simultaneously cut the same or different workpieces. In order to meet the machining requirements, each spindle corresponds to one tool magazine. For example, the multi-spindle vertical numerically controlled machine tool disclosed in chinese patent publication No. CN213004165U, the two spindles in this patent publication are disposed on a fixed column. The distance between the two groups of main shafts is fixed, and when the machining positions of the workpieces to be machined are separated widely, the workpieces cannot be machined simultaneously, so that the machining efficiency is reduced, or the workpieces with the widely separated machining positions are not suitable for machining.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two main shaft vertical machining center solves the problem of the unable simultaneous processing work piece processing of interval broad of the two main shaft machining center of the arm-type tool magazine of present setting clamp.

In order to achieve the above object, an embodiment of the present invention provides a double spindle vertical machining center, which includes a base, a workbench, a gantry and two sets of machine heads; the workbench and the portal frame are arranged on the base, and the two groups of machine heads are oppositely arranged on the portal frame; the machine head comprises a translation electric screw rod module, a moving seat, a lifting electric screw rod module, a spindle seat, a spindle and a clamping arm type tool magazine; the translation electric screw rod module is arranged on the portal frame, the moving seat is connected to the translation electric screw rod module, the lifting electric screw rod module is vertically arranged on the moving seat, the spindle seat is connected to one side of the moving seat in an up-and-down sliding manner and is connected with the lifting electric screw rod module, a mounting hole is formed in the spindle seat, and the spindle is mounted in the mounting hole; the movable seats are provided with a first side and a second side, the adjacent side of the two movable seats is the first side, and the opposite side is the second side; the extension has been extended to the first side of removing the seat, and the extension extends to the front side of spindle drum, and the front end of extension is provided with the installation face, and arm lock formula tool magazine fixed mounting has the rotatory rotation axis of tool changing on the installation face, and the bottom surface projection of rotation axis is 20 ~ 90 contained angles with removing the seat moving direction.

Furthermore, a supporting part extends from the second side of the movable seat, and the end part of the supporting part is connected with the mounting surface; the extending part, the supporting part, the mounting surface and the movable seat form a clearance cavity for the clearance spindle seat to move up and down.

Further, the front side of the spindle seat is provided with an air avoiding surface for avoiding the air avoiding clamp arm type tool magazine, and the air avoiding surface is perpendicular to the projection of the bottom surface of the rotating shaft of the clamp arm type tool magazine.

Furthermore, the rotating shafts in the two clamping arm type tool magazines form an included angle of 90 degrees, and the bottom projection of the rotating shafts form an included angle of 45 degrees with the moving direction of the moving seat.

Furthermore, the top of portal frame still is provided with the guide rail, and the dorsal part of removing the seat still extends there is connecting portion, and connecting portion are connected with the guide rail.

Furthermore, the number of the working tables is two, and the working tables are arranged on the base relatively independently.

Further, the workbench comprises an electric screw rod linear module which is arranged on the base; the table panel is arranged on the electric lead screw linear module; the moving direction of the electric screw rod linear module driving table panel is vertical to the moving direction of the moving seat.

Furthermore, a gap is formed between the two working tables, and a chip removal device is also arranged in the gap.

Furthermore, the bottom in space is provided with the half slot, and chip removal device includes hob and motor, and the hob setting is in the half slot, and the hob is connected to the motor for the drive hob is rotatory.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the screen panel automatic feed welding all-in-one has following technological effect at least:

1. the machining center is provided with two independent machine heads, and each independent machine head is provided with a main shaft and a tool magazine, so that in each group of machine heads, the movable seat can be driven to move by the translation electric screw rod module, and the main shaft seat and the main shaft are driven to move up and down by the lifting electric screw rod module, so that the cutting machining of workpieces on a workbench is realized, and free tool changing can also be realized; therefore, the two machine heads can be independently processed, the long-distance position processing is met, and the processing efficiency can be improved.

2. In the two groups of machine heads, because the projection of the bottom surface of the rotating shaft of the clamping arm type tool magazine is at an included angle of 20-90 degrees with the moving direction of the moving seat, the tool magazines in the two groups of machine heads are longitudinally parallel or form a certain included angle; therefore, when the main shafts in the two machine heads are close to the limit, the distance between the two main shafts is small, and the small distance position can be met for simultaneous processing, so that the processing center can adapt to simultaneous processing of long distance positions and short distance positions, and the universality is high.

3. In the same machining stroke, the length of the machining center is smaller than that of the machining center which simultaneously arranges the clamping arm type tool magazine at the front side of the spindle seat, so that the size of the machining center can be reduced, and the cost of the machining center is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a structural diagram of a double-spindle vertical machining center according to an embodiment of the present invention.

Fig. 2 is a structural diagram of the other side of the double-spindle vertical machining center according to the embodiment of the present invention.

Fig. 3 is a structural diagram of a machine head of a double-spindle vertical machining center provided by the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings only for the convenience of description of the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

The utility model discloses an in the embodiment, the two main shaft vertical machining center that this embodiment provided, concrete two independent aircraft noses to two independent aircraft noses can independently improve the efficiency of processing to the work piece processing the same or different, and can also satisfy the work piece processing of long interval and short interval. Specifically, referring to fig. 1 to 3, the dual spindle vertical machining center of the present embodiment includes a base 100, a worktable 200, a gantry 300, and two sets of heads 400. The work table 200 and the gantry 300 are disposed on the base 100, and the two sets of heads 400 are oppositely disposed on the gantry 300. The machine head 400 comprises a translation electric screw module 410, a moving seat 420, a lifting electric screw module 430, a spindle seat 440, a spindle 450 and a clamping arm type tool magazine 460. The translational electric screw rod module 410 is arranged on the portal frame 300, the moving seat 420 is connected to the translational electric screw rod module 410, the lifting electric screw rod module 430 is vertically arranged on the moving seat 420, the spindle seat 440 is connected to one side of the moving seat 420 in a vertically sliding manner and is connected with the lifting electric screw rod module 430, a mounting hole is formed in the spindle seat 440, and the spindle 450 is installed in the mounting hole. The movable base 420 has a first side 421 and a second side 422, wherein the first side 421 is on the opposite side of the two movable bases 420, and the second side 422 is on the adjacent side. An extension part 423 extends from the first side of the moving seat 420, the extension part 423 extends to the front side of the spindle seat 440, a mounting surface 424 is arranged at the front end of the extension part 423, and the clamp arm type tool magazine 460 is fixedly mounted on the mounting surface 424. The clamping arm type tool magazine 460 has a rotating shaft for tool changing rotation, and the bottom projection of the rotating shaft forms an included angle of 20-90 degrees with the moving direction of the moving seat 420, so that the clamping arm type tool magazine 460 is located on the first side 421 of the moving seat 420, or forms an included angle with the first side 421, when the two spindles 450 approach each other, the mutual interference of the two clamping arm type tool magazines 460 can be effectively avoided, and therefore the minimum distance between the two spindles 450 can be effectively reduced. Furthermore, the rotating shafts in the two clamping arm type tool magazine 460 form an included angle of 90 °, and the bottom projection of the rotating shaft forms an included angle of 45 ° with the moving direction of the moving seat 420. In the embodiment, the two clamping arm tool magazines 460 are arranged at 90 °, so that the distance between the two spindles 450 is the minimum, and the two clamping arm tool magazines 460 do not interfere with each other.

Specifically, referring to fig. 1 to 3, the dual spindle vertical machining center of the present embodiment includes two independent machine heads 400, and each independent machine head 400 is provided with a spindle 450 and a clamp arm tool magazine 460, so that in each set of machine heads 400, the translational electric lead screw module 410 can drive the moving base 420 to move, and the lifting electric lead screw module 430 drives the spindle base 440 and the spindle 450 to move up and down, so as to implement cutting of a workpiece on the worktable 200, and in addition, free tool changing can be implemented. And when the main shafts 450 in the two heads are close to each other to the limit, the distance between the two main shafts 450 is smaller, and the simultaneous processing of small distance positions can be met, so that the processing center can adapt to the simultaneous processing of long distance positions and short distance positions, and the universality is strong. In addition, in the same machining stroke, the length of the machining center is smaller than that of a machining center which is provided with the clamping arm type tool magazine at the front side of the spindle seat, so that the size of the machining center can be reduced, and the cost of the machining center can be reduced.

Further, referring to fig. 1 to 3, a supporting portion 425 extends from a second side of the moving seat 420, an end portion of the supporting portion 425 is connected to the mounting surface 424, and the supporting strength of the moving seat 420 to the arm clamp type tool magazine 460 can be increased by providing the supporting portion 425, so that the stability of tool magazine installation can be increased. In addition, the extending portion 423, the supporting portion 425, the mounting surface 424 and the moving base 420 form a clearance space for avoiding the spindle base 440 to move up and down, which can realize the mounting of the clamping arm type tool magazine 460 and avoid the spindle base 440 to move up and down.

Further, referring to fig. 1 to 3, a clearance surface 441 is disposed at a front side of the spindle base 440 to avoid the clamp arm type tool magazine 460, and a projection of the clearance surface 441 is perpendicular to a bottom surface of a rotation shaft of the clamp arm type tool magazine 460. The clearance surface 441 can reduce the distance between the main shaft 450 and the tool changing position of the clamping arm type tool magazine 460, thereby facilitating the tool changing of the main shaft 450.

Further, referring to fig. 1 to 3, the guide rail 301 is further provided on the top of the gantry 300, the connection part 426 extends from the back side of the movable base 420, and the connection part 426 is connected to the guide rail 301. In this embodiment, the connection and stress stability between the movable base 420 and the gantry 300 can be improved.

Further, referring to fig. 1 and 2, the work tables 200 are two in number and are relatively independently provided on the base 100. The worktable 200 includes an electric screw linear module 210, which is arranged on the base 100; and a table panel 220 disposed on the electric lead screw linear module 210. The moving direction of the electric lead screw linear module 210 driving the table panel 220 is perpendicular to the moving direction of the moving base 420. In this embodiment, the same or different workpieces can be placed on the two sets of work tables 200, and two sets of work tables can be independently processed. It is also possible to arrange the work whose length is exaggerated on the two work tables 200, so that both ends of the work can be simultaneously processed by the two heads 400, thereby satisfying the processing of a large work.

Still further, referring to fig. 2, a gap is formed between the two work tables 200, and a chip removal device 230 is further provided in the gap. The scrap iron formed by machining can fall into the gap and can be discharged through the scrap iron discharging device 230. In addition, for a large workpiece with a downward bulge in the middle, the position of the bulge can be placed in the gap, so that the processing of the workpiece is satisfied.

Further, referring to fig. 2, a semicircular groove is formed in the bottom of the gap, so that the processed chips can be conveniently collected in the semicircular groove. The chip discharging device 230 comprises a screw rod 231 and a motor 232, wherein the screw rod 231 is arranged in the semicircular groove, and the motor 232 is connected with the screw rod 231 and used for driving the screw rod 231 to rotate.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-spindle vertical machining center is characterized by comprising a base, a workbench, a portal frame and two groups of machine heads; the workbench and the portal frame are arranged on the base, and the two groups of machine heads are oppositely arranged on the portal frame; the machine head comprises a translation electric screw rod module, a moving seat, a lifting electric screw rod module, a spindle seat, a spindle and a clamping arm type tool magazine; the translation electric screw rod module is arranged on the portal frame, the moving seat is connected to the translation electric screw rod module, the lifting electric screw rod module is vertically arranged on the moving seat, the spindle seat is connected to one side of the moving seat in a vertically sliding mode and is connected with the lifting electric screw rod module, a mounting hole is formed in the spindle seat, and the spindle is mounted in the mounting hole; the movable seats are provided with a first side and a second side, the opposite sides of the two movable seats are the first side, and the adjacent sides are the second sides; the tool changer comprises a moving seat, a clamping arm type tool magazine and a clamping arm type tool magazine, wherein an extending part extends from the first side of the moving seat, the extending part extends to the front side of a spindle seat, an installing surface is arranged at the front end of the extending part, the clamping arm type tool magazine is fixedly installed on the installing surface and is provided with a rotating shaft for tool changing rotation, and the bottom projection of the rotating shaft forms an included angle of 20-90 degrees with the moving direction of the moving seat.

2. The dual spindle vertical machining center of claim 1, wherein: a support part extends from the second side of the movable seat, and the end part of the support part is connected with the mounting surface; the extension part, the supporting part, the mounting surface and the moving seat form a cavity for avoiding the vertical movement of the spindle seat.

3. The dual spindle vertical machining center of claim 1, wherein: and the front side of the spindle seat is provided with an air avoiding surface for avoiding the air avoiding of the clamping arm type tool magazine, and the air avoiding surface is perpendicular to the projection of the bottom surface of the rotating shaft of the clamping arm type tool magazine.

4. The double-spindle vertical machining center according to any one of claims 1 to 3, wherein: the rotating shafts in the two clamping arm type tool magazines form an included angle of 90 degrees, and the bottom projection of the rotating shafts and the moving direction of the moving seat form an included angle of 45 degrees.

5. The double-spindle vertical machining center according to any one of claims 1 to 3, wherein: the top of portal frame still is provided with the guide rail, the dorsal part of removing the seat still extends there is connecting portion, connecting portion with the guide rail is connected.

6. The double-spindle vertical machining center according to any one of claims 1 to 3, characterized in that: the quantity of workstation is two sets of, and relatively independently set up on the base.

7. The dual spindle vertical machining center of claim 6, wherein: the workbench comprises an electric screw rod linear module and is arranged on the base; the table panel is arranged on the electric lead screw linear module; the electric lead screw linear module drives the moving direction of the table panel to be perpendicular to the moving direction of the moving seat.

8. The dual spindle vertical machining center of claim 7, wherein: a gap is formed between the two work tables, and a chip removal device is also arranged in the gap.

9. The dual spindle vertical machining center of claim 8, wherein: the bottom in space is provided with the half slot, chip removal device includes hob and motor, the hob sets up in the half slot, the motor is connected the hob is used for the drive the hob is rotatory.