CN110834214A

CN110834214A - Double-shaft machining center

Info

Publication number: CN110834214A
Application number: CN201911031345.2A
Authority: CN
Inventors: 孙涛; 赵峰; 王子彬; 张玲; 牛敬仁; 潘克福
Original assignee: ANHUI LINQUAN ZHICHUANG SEIKI Co Ltd
Current assignee: Hubei New Vision Machine Tool Industrial Park Co ltd; Zhongou Hubei Intellectual Property Service Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-02-25
Anticipated expiration: 2039-10-28
Also published as: CN110834214B

Abstract

The invention discloses a double-shaft machining center, which relates to the field of numerical control machines and comprises a base; one end of the upright post is fixed on the base; the center of the rotary table is provided with a through hole, and the middle part of the upper end surface of the rotary table is provided with a boss; the motor is fixed on the upright post, and an output shaft of the motor is connected with the boss key; the tool magazine is positioned in the through hole and is provided with a plurality of tool changing mechanisms; the rotating shafts are arranged on the periphery of the center position of the turntable in a circumferential array manner; at least one work table fixed to the base; the tool of the spindle above the workbench is used for switching the tool on the spindle into the tool needed in the next operation step through the corresponding tool changing mechanism in the process of operating the workpiece, the motor drives the turntable to rotate after one operation step of working, and the workpiece is operated on the next step after the other spindles are in one-to-one correspondence with the workbench.

Description

Double-shaft machining center

Technical Field

The invention relates to the field of numerical control machine tools, in particular to a double-shaft machining center.

Background

The machining center generally refers to a numerically controlled milling machine, which is also called cnc (computer Numerical control) milling machine. English means a milling machine controlled by an electronic counter. The numerical control milling machine is an automatic processing device developed on the basis of a common milling machine, the processing technologies of the two are basically the same, and the structures are somewhat similar. The numerical control milling machine is divided into two categories, namely a tool magazine without tool magazine and a tool magazine with tool magazine. Wherein the numerical control milling machine with the tool magazine is also called as a machining center. The ordinary milling machine operator follows the requirements of the pattern. The relative position between the cutter and the workpiece is continuously changed, and then the cutter is matched with the selected rotation speed of the milling cutter to cut the workpiece, so that various workpieces with different shapes can be machined. The numerical control machine tool machining is to divide the motion coordinates of a tool and a workpiece into minimum unit quantity, namely minimum displacement quantity. And the numerical control system moves each coordinate by a plurality of minimum displacement according to the requirements of the workpiece program, so that the relative motion of the cutter and the workpiece is realized, and the machining of the part is finished.

The applicant found that: when the model of the cutter is changed, the machining center needs to stop operating, the cutter is changed after enough time is left, and the machining efficiency of the machining center is reduced due to the time wasted for changing the cutter.

Disclosure of Invention

In view of this, the present invention provides a dual-axis machining center to solve the technical problem that in the prior art, when a tool is changed, the machining center needs to stop operating, and the tool is changed within a sufficient time, and the machining efficiency of the machining center is reduced due to the time wasted by tool changing.

The invention provides a double-shaft machining center based on the above purpose, comprising,

a base;

one end of the upright post is fixed on the base;

the center of the rotary table is provided with a through hole, and the middle part of the upper end surface of the rotary table is provided with a boss;

the motor is fixed above the upright post, and an output shaft of the motor is in key connection with the boss key and is used for driving the rotary table to rotate;

the tool magazine is positioned in the through hole, a plurality of support rods are arranged on the edge of the lower end face of the tool magazine, the tool magazine is fixed on the base through the support rods, and a plurality of tool changing mechanisms are arranged in the tool magazine;

the rotating shafts are arranged on the periphery of the center position of the turntable in a circumferential array manner;

the workbench is fixed on the base and used for placing workpieces, and the number of the workbench is half of that of the main shafts;

and in the process of operating the workpiece, the rest of the main shafts switch the cutters on the main shafts into the cutters needed in the next operation step through the corresponding cutter changing mechanisms, after the cutters of the main shafts above the workbench are operated, the motor drives the turntable to rotate, and after the rest of the main shafts are in one-to-one correspondence with the workbench, the workpiece is operated next.

Further, including the connecting rod, the side surface of carousel is equipped with rotates the groove, the connecting rod is equipped with a plurality of, and the one end and the stand fixed connection of connecting rod, the other end and the rotation groove of connecting rod rotate to be connected.

Furthermore, the rotating groove is a T-shaped groove, and the end part of the connecting rod, which is rotatably connected with the rotating groove, is a T-shaped end.

The novel tool changer is characterized by further comprising a partition plate, wherein the partition plate is arranged between the workbench and the tool magazine, the bottom of the partition plate is fixed on the base, the upper end of the partition plate is close to the lower end face of the turntable, and the partition plate is provided with a notch in an area right opposite to the tool changing mechanism and used for tool changing.

Furthermore, the number of the main shafts is four, the tool magazine is divided into two areas, a tool changing mechanism and a plurality of tool sleeves are arranged in each area, the tool sleeves are used for fixing different tools, and the tools in the two areas are identical in composition.

Further, the tool magazine comprises a section plate, two areas in the tool magazine are separated through the section plate, and the section plate is fixed to the tool magazine.

Furthermore, in each region, all the knife pockets in the region are sequentially numbered by letters or numbers from the first knife pocket in the clockwise direction, and the types of the knives fixed by the knife pockets with the same number in the two regions are the same.

The invention has the beneficial effects that: by adopting the double-shaft machining center, after a workpiece is placed on the workbench, the knives of the main shafts above the workbench are switched into the knives needed in the next operation step by the rest main shafts through the corresponding knife changing mechanisms in the process of operating the workpiece, after the knives of the main shafts above the workbench are operated, the motor drives the turntable to rotate, and after the rest main shafts correspond to the workbench one by one, the next operation is carried out on the workpiece.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a bottom view of the tool magazine in an embodiment of the present invention.

The automatic tool changing device comprises a base 1, a workbench 2, a partition plate 3, a support rod 4, a tool magazine 5, a main shaft 6, a rotary table 7, a through hole 8, a connecting rod 9, a motor 10, an upright column 11, a boss 12, a rotating groove 13, a tool sleeve 14, a tool changing mechanism 15 and a partition plate 17.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

In view of the above objects, a first aspect of the present invention provides an embodiment of a biaxial machining center, as shown in fig. 1 and 2, including,

a base 1;

an upright column 11, one end of which is fixed to the base 1;

the center of the rotary table 7 is provided with a through hole 8, and the middle part of the upper end surface of the rotary table 7 is provided with a boss 12;

the motor 10 is fixed above the upright post 11, and an output shaft of the motor 10 is in key connection with the boss 12 and is used for driving the rotary table 7 to rotate;

the tool magazine 5 is positioned in the through hole 8, a plurality of support rods 4 are arranged on the edge of the lower end face of the tool magazine 5, the tool magazine 5 is fixed on the base 1 through the support rods 4, and a plurality of tool changing mechanisms 15 are arranged in the tool magazine 5;

the rotating shafts 6 are arranged on the periphery of the center position of the turntable 7 in a circumferential array manner;

the workbench 2 is fixed on the base 1 and used for placing workpieces, and the number of the workbench 2 is half of that of the main shafts 6;

in this embodiment, after a workpiece is placed on the workbench 2, the knife of the spindle 6 located above the workbench 2 is switched to the knife required in the next operation step through the corresponding knife changing mechanism by the rest of the spindles 6 in the process of operating the workpiece, after the knife of the spindle 6 located above the workbench 2 is operated, the turntable 7 is driven to rotate by the motor 10, and after the rest of the spindles 6 are in one-to-one correspondence with the workbench 2, the workpiece is operated in the next step.

As an embodiment, as shown in fig. 1, a connecting rod 9 is included, a rotating groove 13 is formed on a side surface of the rotating disc 7, the connecting rod 9 is provided with a plurality of connecting rods 9, one end of each connecting rod 9 is fixedly connected with the upright post 11, and the other end of each connecting rod 9 is rotatably connected with the rotating groove 13, so that the rotating disc 7 is fixed by an output shaft of the motor 10, the position of the rotating disc 7 is limited by the connecting rod 9, and the stability of the rotating disc 7 during rotation is ensured when the motor 10 drives the rotating disc 7 to rotate.

As an embodiment, as shown in fig. 1, the rotation groove 13 is a T-shaped groove, and the end of the connection rod 9 rotatably connected to the rotation groove 13 is a T-shaped end, so that the end of the connection rod 9 is matched with the rotation groove 13, thereby improving the stability of the rotation of the rotary table 7 and preventing the connection rod 9 from sliding out of the rotation groove 13.

As an implementation mode, as shown in fig. 1, fig. 2 and fig. 3, the automatic tool changer comprises a partition plate 3, the partition plate 3 is arranged between the workbench 2 and the tool magazine 5, the bottom of the partition plate 3 is fixed on the base 1, the upper end of the partition plate 3 is close to the lower end face of the turntable 7, and the partition plate 3 is provided with a notch in an area opposite to the tool changing mechanism 15 for tool changing.

In the embodiment, when the partition plate 3 is used for processing work at the processing center, the processing area and the area where the tool magazine 5 is located can be isolated, so that scraps generated during processing and water required during processing are difficult to be isolated outside the area where the tool magazine 5 is located by the partition plate 3, and the environment of the tool magazine 5 is difficult to be influenced by the processing area.

As an embodiment, as shown in fig. 2, the spindle 6 is provided with four, the tool magazine 5 is divided into two regions, and a tool changing mechanism 15 and a plurality of tool holders 14 are provided in each region, the tool holders 14 are used for fixing different tools, and the compositions of the tools in the two regions are the same.

In this embodiment, because there are two work tables 2, two workpieces can be placed on the two work tables 2 at the same time, the knife of the spindle 6 located above the work table 2 can be switched to the knife needed in the next operation step by the corresponding knife changing mechanism in the process of operating the workpieces, the motor 10 drives the turntable 7 to rotate after the knife of the spindle 6 located above the work table 2 is operated, after the rotation is performed for 45 degrees, the two spindles 6 correspond to the work tables respectively, and then the next operation can be performed on the two workpieces at the same time, by which not only can the time for changing the knife be saved, but also the two workpieces can be processed, the processing efficiency of the workpieces is greatly improved, therefore, if the number of the spindles 6 is 6 or 8, the processing efficiency of the workpieces can be further improved, again by way of example only.

As an embodiment, as shown in fig. 2 and 3, the tool magazine includes a section plate 17, two areas in the tool magazine 5 are separated by the section plate 17, the section plate 17 is fixed to the tool magazine 5, and the areas in the tool magazine 5 are separated by the section plate 17, so that when a certain tool reaches the service life and needs to be replaced, after the certain tool is found in one area, the certain tool can be quickly found in the other area, and time waste caused by the fact that the areas cannot be distinguished for comparing all tools in the tool magazine 5 is avoided.

As an embodiment, as shown in fig. 3, all the tool holders 14 in each of the regions are numbered sequentially with letters or numbers starting from the first tool holder 14 in the clockwise direction, and the tools fixed by the tool holders 14 with the same number in the two regions have the same model, since the tools to be replaced rotate the tool changer 15 when changing tools, in this embodiment, if numbering is not performed according to the above method, different driving devices must be provided in each region to rotate the tool holders 14 in the regions, which not only increases the volume of the tool magazine 5 and wastes electricity, but also increases the number of the tools to be replaced according to the above method, and the tools fixed by the tool holders 14 with the same number in the two regions have the same model, so that only one driving device is needed to drive all the tool holders 14 to rotate, when changing tools, as long as the tools to be replaced in one region rotate to the tool changer 15, the knife to be replaced in the other area must be rotated to the knife changing mechanism 15.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. A biax machining center which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a base (1);

a column (11) having one end fixed to the base (1);

the center of the rotary table (7) is provided with a through hole (8), and the middle part of the upper end surface of the rotary table (7) is provided with a boss (12);

the motor (10) is fixed above the upright post (11), and an output shaft of the motor (10) is in key connection with the boss (12) and is used for driving the rotary table (7) to rotate;

the tool magazine (5) is positioned in the through hole (8), the edge of the lower end face of the tool magazine (5) is provided with a plurality of support rods (4), the tool magazine (5) is fixed on the base (1) through the support rods (4), and a plurality of tool changing mechanisms (15) are arranged in the tool magazine (5);

the rotating shafts (6) are fixed on the turntable (7), the number of the rotating shafts (6) is even, and the rotating shafts (6) are circumferentially arranged around the center of the turntable (7);

the workbench (2) is fixed on the base (1) and used for placing workpieces, and the number of the workbench (2) is half of that of the main shafts (6);

during the operation of the workpiece, the rest of the main shafts (6) switch the cutters on the main shafts (6) to the cutters needed in the next operation step through the corresponding cutter changing mechanisms, after the operation of the cutters of the main shafts (6) above the workbench (2) is completed, the motor (10) drives the turntable (7) to rotate, and after the rest of the main shafts (6) are in one-to-one correspondence with the workbench (2), the next operation is performed on the workpiece.

2. The biaxial machining center according to claim 1, characterized in that: including connecting rod (9), the side surface of carousel (7) is equipped with rotates groove (13), connecting rod (9) are equipped with a plurality of, and the one end and stand (11) fixed connection of connecting rod (9), and the other end and the rotation groove (13) of connecting rod (9) rotate and are connected.

3. The biaxial machining center according to claim 2, characterized in that: the rotating groove (13) is a T-shaped groove, and the end part of the connecting rod (9) rotatably connected with the rotating groove (13) is a T-shaped end.

4. The biaxial machining center according to claim 1, characterized in that: including baffle (3) be equipped with between workstation (2) and tool magazine (5) baffle (3), the bottom of baffle (3) is fixed in base (1), and the lower terminal surface of carousel (7) is close to the upper end of baffle (3), baffle (3) are equipped with the notch in the just right region of tool changing mechanism (15) for the tool changing.

5. The biaxial machining center according to claim 1, characterized in that: the tool magazine is characterized in that the number of the main shafts (6) is four, the interior of the tool magazine (5) is divided into two areas, a tool changing mechanism (15) and a plurality of tool sleeves (14) are arranged in each area, the tool sleeves (14) are used for fixing different tools, and the composition of the tools in the two areas is the same.

6. The biaxial machining center according to claim 5, characterized in that: the tool magazine comprises a spacing plate (17), two areas in the tool magazine (5) are separated through the spacing plate (17), and the spacing plate (17) is fixed on the tool magazine (5).

7. The biaxial machining center according to claim 6, characterized in that: in each region, all the knife sleeves (14) in the region are numbered sequentially from the first knife sleeve (14) in the clockwise direction, and the types of knives fixed by the knife sleeves (14) with the same number in the two regions are the same.