CN118372054A - Multi-spindle multi-station machining center and machining method thereof - Google Patents

Abstract

The invention discloses a multi-spindle multi-station machining center, which comprises: a plurality of machine tool spindles which are arranged in parallel with each other, and workpiece spindles which are equal in number and corresponding in position to the machine tool spindles; the machine tool spindle can move along the Y-axis direction in the horizontal plane and the X-axis direction in the vertical plane; the workpiece spindle can move along the Z-axis direction in the horizontal plane, can rotate around the A-axis direction and can rotate around the C-axis direction; the automatic feeding device is characterized by further comprising a material warehouse capable of moving along the Y-axis direction in the horizontal plane, wherein the material warehouse is provided with a plurality of workpiece groups, each workpiece group comprises workpieces with the same number and corresponding positions as the workpiece spindles, the workpieces are clamped on the material warehouse, and the workpiece spindles can clamp the workpieces with the corresponding positions. According to the invention, the machine tool main shaft, the workpiece main shaft and the stock base are cooperatively matched, so that a plurality of workpieces are clamped at one time to synchronously process, the processing efficiency is improved, and the large-batch processing of complex workpieces can be satisfied.

Description

Multi-spindle multi-station machining center and machining method thereof

Technical Field

The invention relates to the technical field of machining equipment, in particular to a multi-spindle multi-station machining center and a machining method thereof.

Background

The machining center is used as a high-efficiency automatic machine tool integrating mechanical equipment and a numerical control system, and is particularly suitable for machining operation for processing complex parts. The powerful comprehensive processing capability ensures that a workpiece can finish a plurality of processing tasks after being clamped once, and the processing precision is quite high. Especially for batch workpiece processing with medium difficulty, the efficiency can be 5 to 10 times that of common equipment.

Currently, the general processing centers in the market take the main stream, and are more suitable for single-piece processing with complex shape and strict precision requirement or small-medium batch production of multiple varieties. However, for mass production of small and medium parts with the same complexity and the same high precision requirement, the applicability of the universal machining center is relatively limited.

Therefore, it is desirable to design a machine tool capable of improving machining efficiency to satisfy mass production of complex parts.

Disclosure of Invention

The invention provides a multi-spindle multi-station machining center and a machining method thereof, which are used for meeting the mass production of complex parts.

In order to achieve the above object, the technical scheme of the present invention is as follows:

A multi-spindle, multi-station machining center comprising: a plurality of machine tool spindles which are arranged in parallel with each other, and workpiece spindles which are equal in number and corresponding in position to the machine tool spindles; the machine tool spindle can move along the Y-axis direction in the horizontal plane and the X-axis direction in the vertical plane; the workpiece spindle can move along the Z-axis direction in the horizontal plane, can rotate around the A-axis direction and can rotate around the C-axis direction; the automatic feeding device is characterized by further comprising a material warehouse capable of moving along the Y-axis direction in the horizontal plane, wherein the material warehouse is provided with a plurality of workpiece groups, each workpiece group comprises workpieces with the same number and corresponding positions as the workpiece spindles, the workpieces are clamped on the material warehouse, and the workpiece spindles can clamp the workpieces with the corresponding positions.

Further, the machine tool spindle and the stock bin are located on two sides of the workpiece spindle.

Further, the axes of the machine tool spindles are coplanar, and the distances between two adjacent machine tool spindles are equal; the axes of the workpiece spindles are coplanar, and the distances between two adjacent workpiece spindles are equal.

Further, a plurality of machine tool spindles are arranged along the X-axis direction.

Further, the machine tool comprises a machine tool body, a turntable which moves along the Z-axis direction is arranged on the machine tool body, a workpiece main shaft is arranged on the turntable, the turntable can drive the workpiece main shaft to rotate around the A-axis direction, and the workpiece main shaft can drive the workpiece to rotate around the C-axis direction.

Further, the machine tool also comprises a machine tool body, wherein the machine tool body is provided with a stand column moving along the Y-axis direction, the stand column is provided with a spindle box capable of moving along the X-axis direction, and a machine tool spindle is arranged in the spindle box.

Further, the machine tool comprises a machine tool body, and the material warehouse is arranged on the machine tool body; the material warehouse is fixedly provided with a material clamp, and the material warehouse is provided with a material taking position capable of clamping a workpiece into or removing the workpiece from the material clamp.

Further, the tool magazine capable of moving along the Z-axis direction comprises tool discs which are equal to the machine tool spindles in number and corresponding in position, and the axes of the tools on the tool discs are coplanar with the axes of the machine tool spindles corresponding in position.

Further, the cutter comprises a machine body, the cutter magazine is arranged on the machine body, the cutter magazine can move along the Z-axis direction, and the cutter head can rotate around the A-axis direction.

A processing method of a processing center adopting multiple main shafts and multiple stations comprises the following steps.

S1, loading the workpiece into a material warehouse.

S2, firstly, moving the workpiece warehouse along the Y-axis direction to enable the workpiece of the workpiece group to move to the feeding area, secondly, rotating the workpiece main shaft along the A-axis direction to enable the workpiece main shaft to face the workpiece to be fed, secondly, moving the workpiece main shaft along the Z-axis direction to the feeding area and clamping the workpiece to be fed, secondly, loosening the workpiece to be fed by the workpiece clamping device of the workpiece warehouse, then, moving the workpiece main shaft along the Z-axis direction to take out the workpiece, and finally, removing the workpiece warehouse along the Y-axis direction.

S3, the workpiece main shaft rotates around the A-axis direction to enable the workpiece main shaft to face the processing area, and the workpiece main shaft moves to the processing area along the Z-axis direction.

And S4, the machine tool spindle moves to a processing area along the Y-axis direction and the X-axis direction to process.

And S5, after the machining is finished, the machine tool spindle exits the machining area, the stock bin moves to the feeding area, and the workpiece spindle places the machined workpiece into the stock bin.

The beneficial effects are that:

the first, the application discloses a multi-spindle multi-station machining center which is provided with a plurality of machine tool spindles which are mutually parallel and workpiece spindles which are equal in number and corresponding in position to the machine tool spindles, wherein the machine tool spindles and the workpiece spindles are matched to synchronously machine a plurality of workpieces; the workpiece main shaft can clamp a plurality of workpieces at one time by arranging the material warehouse, so that the feeding efficiency is improved; the workpiece spindle moves along the Z-axis direction and rotates around the A-axis direction, so that the machining with the machine tool spindle and the loading and unloading with the material warehouse are realized; the machine tool spindle, the workpiece spindle and the stock warehouse are cooperatively matched, so that the machining efficiency is improved, and the large-batch machining of complex workpieces can be met.

The processing method of the multi-spindle multi-station processing center disclosed by the application can realize the processing of complex workpieces by the multi-spindle multi-station processing center, can improve the processing efficiency and can meet the requirement of mass processing of complex workpieces.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural diagram of a multi-spindle multi-station machining center according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a multi-spindle multi-station machining center disclosed in embodiment 1 of the present invention;

Fig. 3 is a front view of a multi-spindle multi-station machining center disclosed in embodiment 1 of the present invention;

Fig. 4 is a schematic structural diagram of a multi-spindle multi-station processing center turntable box disclosed in embodiment 1 of the present invention;

fig. 5 is a schematic diagram of a multi-spindle multi-station processing center stock library according to embodiment 1 of the present invention;

Fig. 6 is a front view of a multi-spindle multi-station processing center stock disclosed in embodiment 1 of the present invention.

1.A machine tool spindle; 2.a workpiece spindle;

3. a material warehouse; 31. a material clamp; 32. a material warehouse bottom plate; 33. a material warehouse top plate; 34. a material clamp mounting plate; 35. a stock base support;

4. a workpiece;

5. A bed body; 51. a first platform; 52. a second platform; 53. a third platform;

6. A turntable; 61. a turntable base; 62. a turntable housing; 621. a bottom plate; 622. a first side plate; 623. a second side plate; 624. a top plate; 625. rib plates;

7. A column; 8. a spindle box;

9. a tool magazine; 91. a cutterhead; 92. a tool holder; 93. a slide; 94. a rotating shaft;

10. A steel plate protective cover; 20. an electrical cabinet; 30. chip removal device.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

A multi-spindle, multi-station machining center, as shown in connection with fig. 1,2 and 3, comprising: a plurality of machine tool spindles 1 arranged in parallel with each other, and workpiece spindles 2 corresponding to the same number and positions as the machine tool spindles 1, 4 machine tool spindles 1 and 4 workpiece spindles 2 are illustrated as an example in the figure. The machine tool spindle 1 is movable in a Y-axis direction in a horizontal plane and in an X-axis direction in a vertical plane; the workpiece spindle 2 is movable in the Z-axis direction in the horizontal plane, and is rotatable about the a-axis direction and about the C-axis direction; the device also comprises a stock bin 3 capable of moving along the Y-axis direction in the horizontal plane, wherein the stock bin 3 is provided with a plurality of workpiece groups, each workpiece group comprises workpieces 4 which are equal to the workpiece spindles 2 in number and correspond to the workpiece spindles 2 in position, the workpieces 4 are clamped on the stock bin 3, and the workpiece spindles 2 can clamp the workpieces 4 corresponding to the workpiece spindles in position. The stock bin 3 is internally provided with a plurality of groups of workpieces, in the figure, 5 groups are taken as an example for illustration, so that the stock preparing time of the workpieces 4 is saved; the workpiece spindle 2 can synchronously clamp a group of workpieces 4 at a time, so that the feeding and discharging steps are simplified, and the feeding and discharging efficiency is improved. The workpiece spindle 2 and the machine tool spindle 1 are matched to synchronously process a group of workpieces 4, so that the processing beat of the workpieces 4 can be shortened, and the processing efficiency is improved. The workpiece spindle 2 can move between the processing area and the feeding area by moving along the Z-axis direction and rotating around the A-axis direction, so that both processing and feeding and discharging are realized. The machine tool spindle 1 moves back and forth along the Y-axis direction and moves up and down along the X-axis direction, and the workpiece spindle 2 moves left and right along the Z-axis direction; and the workpiece spindle 2 is rotatable about an a-axis direction perpendicular to the Y-axis and Z-axis directions, and about a C-axis direction perpendicular to the X-axis and Y-axis directions; therefore, five-axis machining of matching of the three XYZ linear axes and the two AC rotary axes is realized, and machining of a complex structure of the workpiece 4 is met. Therefore, the machine tool spindle 1, the workpiece spindle 2 and the stock bin 3 of the multi-spindle multi-station machining center are cooperatively matched, so that the machining efficiency is improved, and the large-batch machining of complex workpieces can be met.

Preferably, the machine tool spindle 1 and the stock bin 3 are located on two sides of the workpiece spindle 2, so that the movement of the stock bin 3 is prevented from interfering with the movement of the machine tool spindle 1, the movement of the machine tool spindle 1 and the movement of the stock bin 3 can be performed independently of each other, the movement paths of the machine tool spindle 1 and the stock bin 3 are shortened, the movement control of the machine tool spindle 1 and the stock bin 3 is simplified, and the movement precision of the machine tool spindle 1 and the stock bin 3 is improved. Meanwhile, the layout form enables the left and right distribution of the structural weight to be more uniform, and prevents the weight concentration from affecting the integral rigidity of the structure and the processing precision.

Preferably, the axes of the machine tool spindles 1 are coplanar, and the distances between two adjacent machine tool spindles 1 are equal; the axes of the workpiece spindles 2 are coplanar, and the distances between two adjacent workpiece spindles 2 are equal. The arrangement mode can fully utilize the space under the condition of meeting the clamping and processing space of the workpiece 4, so that the structure of the processing center is more compact, the volume and the mass of a corresponding motion structure are reduced, and the driving structure is favorable for realizing high-speed driving.

Specifically, the centerlines of the workpieces 4 of the respective each group of workpieces are coplanar and the distances between adjacent two workpieces 4 are equal. The machine tool main shaft 1 corresponds to the workpiece main shafts 2 one by one, and the workpiece main shafts 2 correspond to the workpieces 4 of each workpiece group one by one. The 4 machine tool spindles 1 synchronously act, the 4 workpiece spindles 2 synchronously act, and the workpieces 4 of each workpiece group synchronously act along with the material warehouse 3. The arrangement mode realizes that independent control programming is not needed for a single machine tool spindle 1, a single workpiece spindle 2 and a single workpiece 4, simplifies control programs of the machine tool spindle 1, the workpiece spindle 2 and a stock bin 3, simplifies linkage control programs of the machine tool spindle 1, the workpiece spindle 2 and the stock bin 3, and improves action response speeds of the machine tool spindle 1, the workpiece spindle 2 and the stock bin 3, thereby improving machining efficiency.

Preferably, the machine tool spindles 1 are arranged along the X-axis direction, that is, the machine tool spindles 1 are sequentially arranged in a row from top to bottom along the vertical direction, and the corresponding workpiece spindles 2 and the workpieces 4 of each group of workpieces are also arranged in a row, so that the space in the vertical direction can be fully utilized by the arrangement of the machine tool spindles 1, the workpiece spindles 2 and the material warehouse 3, and the effect of reducing the floor area of the machining center is achieved. And this arrangement can save a drive shaft in the X-axis direction, since the magazine 3 needs to be designed in multiple layers for space utilization if the machine tool spindles 1 are arranged in a row in the horizontal direction; this makes it necessary to provide a drive shaft in the X-axis direction on the magazine 3 so that each layer of work pieces 4 can be moved in the X-axis direction to align the work piece spindle 2; or a drive shaft in the X-axis direction needs to be added to enable the workpiece spindle 2 to move in the X-axis direction to align each layer of the workpiece 4. In summary, the arrangement of the machine tool spindles 1 in a row results in a more compact construction of the machining center, a smaller volume and a reduced arrangement of the drive shafts.

Preferably, the machine tool further comprises a machine tool body 5, a turntable 6 which moves along the Z-axis direction is arranged on the machine tool body 5, the workpiece spindle 2 is arranged on the turntable 6, the turntable 6 can drive the workpiece spindle 2 to rotate around the A-axis direction, and the workpiece spindle 2 can drive the workpiece 4 to rotate around the C-axis direction. The turntable 6 drives the workpiece spindle 2 to move so as to realize the movement of the workpiece spindle 2 along the Z-axis direction, the turntable 6 drives the workpiece spindle 2 to rotate so as to realize the rotation of the workpiece spindle 2 around the A-axis direction, and the rotation of the workpiece spindle 2 around the axis of the turntable 2 realizes the rotation of the workpiece 4 around the C-axis direction.

Specifically, as shown in fig. 1, 3 and 4, the turntable 6 includes a turntable base 61 mounted on the bed 5 and a turntable housing 62 mounted on the turntable base 61, and the workpiece spindle 2 is mounted on the turntable housing 62. The turntable base 61 is driven by a first driving assembly to move along the Z-axis direction, and the turntable box 62 is driven by a second driving assembly to rotate around the A-axis direction.

Specifically, the turntable box 62 has a frame structure, openings are formed in two sides of the turntable box 62, and the head of the workpiece spindle 2 extends out of the opening in one side so as to facilitate clamping of the workpiece 4; and the openings on both sides can also facilitate the installation of the workpiece spindle 2.

Specifically, the turntable housing 62 includes: a bottom plate 621, a first side plate 622, a second side plate 623, and a top plate 624. The bottom plate 621 is mounted on the turntable base 61 and is driven to rotate around the a-axis direction by the second driving assembly, the first side plate 622 and the second side plate 623 are oppositely fixed on the bottom plate 621, the first side plate 622 and the second side plate 623 are perpendicular to the bottom plate 621, and the top plate 624 is fixed on the top ends of the first side plate 622 and the second side plate 623. The workpiece spindle 2 is mounted on the side of the first side plate 622 facing the second side plate 623, and the second side plate 623 and the top plate 624 function as supports against deformation of the first side plate 622. A rib plate 625 is fixedly arranged on one side of the second side plate 623, which is far away from the head of the workpiece spindle 2, and the rib plate 625 is coplanar with the second side plate 623 and fixedly connected with the bottom plate 621, so that the integral rigidity of the turntable box 62 is further enhanced, and the deformation of the turntable box 62 is prevented; and the rib plate 625 is arranged on the second side plate 623, and the rib plate 625 is not arranged on the first side plate 622, so that subsequent repair and maintenance can be facilitated. In this embodiment, the turntable case 62 may be formed by assembling after separate processing, or may be formed by integrally processing.

Specifically, the turntable base 61 is connected with a steel plate protection cover 10, and the steel plate protection cover 10 protects the turntable 6, the first driving assembly, and the second driving assembly.

Preferably, as shown in fig. 1,2 and 3, the machine tool body 5 is provided with a column 7 moving along the Y-axis direction, the column 7 is provided with a headstock 8 capable of moving along the X-axis direction, and the headstock 8 is internally provided with a machine tool spindle 1. The upright post 7 drives the spindle box 8 to move so as to realize the feeding of the machine tool spindle 1 along the Y-axis direction, and the spindle box 8 drives the machine tool spindle 1 to realize the feeding along the X-axis direction.

Specifically, the lathe bed 5 is provided with a third driving component for driving the upright post 7, and the upright post 7 is provided with a fourth driving component for driving the spindle box 8.

Preferably, the magazine 3 is provided on the bed 5; the magazine 3 is fixedly provided with a workpiece clamping device, in this embodiment, the workpiece clamping device adopts a material clamp 31, and the magazine 3 is provided with a material taking position capable of clamping the workpiece 4 into or out of the material clamp 31. The material warehouse 3 moves on the lathe bed 5 to align the workpiece 4 to the workpiece spindle 2, the material clamp 31 can clamp the workpiece 4, and the material taking position is convenient for the workpiece 4 to be clamped in or moved out of the material clamp 31, so that the material warehouse 3 and the workpiece spindle 2 can complete loading and unloading of the workpiece 4 through the cooperation of linear motion.

Specifically, as the machine tool spindles 1 are arranged along the X-axis direction, the workpieces 4 of each workpiece group are arranged in a row in the stock bin 3, and the workpiece groups are arranged in a plurality of rows, so that the stock bin 3 can fully utilize the space in the vertical direction, the number of the stored workpieces 4 in the stock bin 3 is increased, and the volume and the weight of the stock bin 3 are reduced.

Specifically, a tool handle is arranged on the workpiece 4, the axis of the tool handle is coaxial with the center line of the workpiece 4, and the tool handle is matched with the material clamp 31 to clamp the workpiece 4.

Specifically, the magazines 31 are provided with a plurality of columns on the magazine 3, each column of magazines 31 being used for gripping the workpieces 4 of a group of workpieces. The opening directions of the clips 31 of each column are consistent, and the opening directions of the clips 31 are arranged along the Y-axis direction, so that the workpiece 4 can be separated from the clips 31 along the Y-axis direction. After the workpiece spindles 2 clamp the workpieces 4, the workpieces 4 in one row can be separated synchronously only by means of the movement of the material warehouse 3 along the Y-axis direction and the space of the material taking position, the workpieces 4 in one row can be separated from the material warehouse 3 by being driven by the workpiece spindles 2 to move along the Z-axis direction, and finally the workpiece spindles 2 can finish the material taking of the workpieces 4 in one row at a time. Taking the material by comprehensively considering the opening direction of the material clamp 31, the linear motion of the material warehouse 3 and the linear motion of the workpiece spindle 2, the feeding and discharging device can be saved, the feeding and discharging steps can be simplified, and the feeding and discharging efficiency can be improved.

Specifically, as shown in conjunction with fig. 1, 2, 5 and 6, the magazine 3 includes: a magazine bottom plate 32, a magazine top plate 33, a magazine mounting plate 34 and a magazine support 35. The stock bottom plate 32 is mounted on the machine body 5 and is driven to move in the Y-axis direction by a fifth driving assembly, and the clamp mounting plate 34 and the stock support 35 are both mounted between the stock top plate 33 and the stock bottom plate 32, the clamp mounting plate 34 and the stock support 35 supporting the stock top plate 33, the clamp mounting plate 34 facing the workpiece spindle 2, and the stock support 35 being located on a side of the clamp mounting plate 34 remote from the workpiece spindle 2. The clamp mounting plate 34 is provided with a plurality of vertical rectangular openings, three rectangular openings being illustrated. Each row of clips 31 is fixed to the clip mounting plate 34 and is located at one side edge of the rectangular opening, the opening of the clips 31 extends to the rectangular opening, and a space between the opening of the clips 31 and the other side edge of the rectangular opening forms a material taking position.

Specifically, a row of clips 31 may be added to the edges of the two sides of the clip mounting plate 34, and the openings of the two rows of clips 31 face the outer side of the clip mounting plate 34, so as to increase the number of clips 31 mounted on the magazine 3.

Specifically, the opening orientations of one row of clips 31 at the edge of one side of the clip mounting plate 34 and the openings of the clips 31 extending to the rectangular opening are consistent, and the opening orientations of one row of clips 31 at the edge of the other side of the clip mounting plate 34 are opposite to the opening orientations of the other rows of clips 31, so that the clamping directions of the other rows of clips 31 are consistent except for one row of clips 31, and the movement control of the magazine 3 is facilitated.

Preferably, as shown in fig. 1,2 and 3, the tool magazine 9 capable of moving along the Z-axis direction is further included, the tool magazine 9 includes cutterheads 91 corresponding to the number and positions of the machine tool spindles 1, and the axes of the tools on the cutterheads 91 are coplanar with the axes of the machine tool spindles 1 corresponding to the positions. The plurality of cutterheads 91 can realize synchronous tool changing of a plurality of machine tool spindles 1, the efficiency of tool changing is high, and the control program of a tool magazine is simplified.

Specifically, the plurality of cutterheads 91 are arranged in multiple layers along the X-axis direction, and the distance between two adjacent cutterheads 91 is equal to the distance between two adjacent machine tool spindles 1, so that the cutterheads 91 are in one-to-one correspondence with the machine tool spindles 1. A plurality of knife holders 92 with upward openings are uniformly distributed on the periphery of the knife disc 91, and the knife is clamped into the knife holders 92 to realize fixation. The cutters on each layer of cutter discs 91 are arranged in a consistent manner, so that the cutter discs 91 of multiple layers can synchronously move. When any of the tool holders 92 is rotated to correspond to the tool changing position of the machine spindle 1, the axial direction of the tool in the tool holder 92 coincides with the Z-axis direction. The machine spindle 1 is aligned with the tool rear broach in the holder 92, and the machine spindle 1 is moved in the X-axis direction so that the tool is separated from the holder 92. The tool changing operation is realized through the movement of the cutter disc 91 along the Z-axis direction, the rotation of the cutter disc 91 and the movement of the machine tool spindle 1 in two linear directions, so that a tool changing device is saved, the tool changing action is simplified, and the tool changing efficiency is improved.

Preferably, the magazine 9 is provided on the bed 5, and the magazine 9 is movable in the Z-axis direction, and the cutterhead 91 is rotatable about the a-axis direction. The tool magazine 9 can move along the Z-axis direction to be close to or far away from the tool changing position of the machine tool spindle 1, and the cutter disc 91 can rotate around the A-axis direction to align the tool in the cutter holder 92 with the machine tool spindle 1.

Specifically, the tool magazine 9 further includes a slide 93 and a rotating shaft 94, the slide 93 is mounted on the bed 5, and the rotating shaft 94 is mounted on the slide 93. The slide seat 93 is driven by a sixth driving component to move along the Z-axis direction, the rotating shaft 94 is driven by a seventh driving component to rotate around the A-axis direction, and the cutter head 91 is arranged on the rotating shaft 94. The rotating shaft 94 rotates to drive the cutter disc 91 to rotate so as to rotate the corresponding cutter on the cutter disc 91 to correspond to the cutter changing position of the machine tool spindle 1 according to the requirement.

Specifically, the machining center further includes an electrical cabinet 20, the electrical cabinet 20 is mounted at an end of the machine tool body 5, and the tool magazine 9 is located between the machine tool spindle 1 and the magazine 3, and between the workpiece spindle 2 and the electrical cabinet 20, so that the tool magazine 9 can not interfere with movement of the magazine 3 and the machine tool spindle 1.

Specifically, the spindle box 8 is hung on the side surface of the upright post 7, and the spindle box 8 faces the electrical cabinet 20, so that the spindle box 8 can be close to the electrical cabinet 20 as much as possible, the distance between the tool magazine 9 and the electrical cabinet 20 is shortened, and the increase of the size and the weight of the machining center due to the increase of the lathe bed 5 is avoided.

Specifically, the bed 5 includes a first platform 51, a second platform 52, and a third platform 53, where the first platform 51 and the second platform 52 are arranged in parallel, the third platform 53 is located between the first platform 51 and the second platform 52, and the third platform 53 is fixedly connected to both the first platform 51 and the second platform 52; the first platform 51, the second platform 52 and the third platform 53 may be integrally formed, or may be integrally formed by separate processes. The column 7 is mounted on a first platform 51, the magazine 3 is mounted on a second platform 52, and the turret 6 and magazine 9 are mounted on a third platform 53.

Specifically, the machining center further includes a chip removing device 30, and a notch is provided below the second platform 52, into which the chip removing device 30 can extend. The third platform 53 is provided with a chip groove which penetrates the second platform 52 to the notch, and a spiral chip cleaner is arranged in the chip groove for discharging chips to the chip discharging device 30, and the chip discharging device 30 discharges the chips.

Specifically, each driving component can select a high-speed ball screw or a high-speed linear motor to realize high-speed driving of the motion structure.

Example 2

The embodiment provides a processing method of a multi-spindle multi-station processing center in embodiment 1, which comprises the following steps.

S1, loading the workpiece into a stock bin, clamping the workpiece to be processed into a stock clamp of the stock bin after the tool handle is loaded in advance, and finishing stock preparation of the stock bin.

S2, firstly, the material warehouse moves along the Y-axis direction to enable the workpieces of the workpiece group to move to the feeding area, secondly, the workpiece main shaft rotates around the A-axis direction to enable the workpiece main shaft to face the workpiece to be fed, then, the workpiece main shaft moves along the Z-axis direction to the feeding area and clamps the workpiece to be fed, a broach and a tool device are arranged in the workpiece main shaft, the workpiece main shaft moves along the Z-axis direction to enable a tool handle of the workpiece to be inserted into the workpiece main shaft, and the tool device performs broach to clamp the workpiece to be fed. And then the workpiece clamping device of the material warehouse loosens the workpiece to be loaded, namely the material warehouse moves along the Y-axis direction to enable the workpiece to be loaded to move out of the material clamp and enter the material taking position. And then the workpiece spindle moves along the Z-axis direction to take out the workpiece, so that the workpiece to be fed is discharged from the warehouse. And finally, the material warehouse moves away along the Y-axis direction, so that the movement of the workpiece main shaft is prevented from being interfered.

S3, the workpiece main shaft rotates around the A-axis direction to enable the workpiece main shaft to face the processing area, and the workpiece main shaft moves to the processing area along the Z-axis direction.

And S4, the machine tool spindle moves to a processing area along the Y-axis direction and the X-axis direction, and the machine tool spindle processes the workpiece clamped by the workpiece spindle.

And S41, when a tool is required to be taken, the machine tool spindle moves to a tool changing position of the machine tool spindle along the Y-axis direction and the X-axis direction, the rotating shaft drives the cutter disc to rotate so that the required tool holder rotates to be aligned with the machine tool spindle, the tool magazine moves to a tool changing position of the tool magazine along the Z-axis direction, the machine tool spindle draws a tool, the machine tool spindle moves along the X-axis direction so that the tool is separated from the tool holder, and the tool magazine moves along the Z-axis direction so that the tool is separated from the tool magazine. And after finishing tool changing, the main shaft of the machine tool moves to a processing area for processing.

And S42, when the tool is required to be placed, the machine tool spindle moves to a tool changing position of the machine tool spindle along the Y-axis direction and the X-axis direction, the rotating shaft drives the cutter disc to rotate so that the required empty tool clamp rotates to be aligned with the machine tool spindle, the tool magazine moves to the tool magazine tool changing position along the Z-axis direction, the machine tool spindle moves along the X-axis direction so that the tool is clamped into the tool holder, the machine tool spindle beats the tool to loosen the tool, the tool magazine moves along the Z-axis direction so that the tool is separated from the machine tool spindle, and the machine tool spindle finishes the tool placement.

And S5, after the machining is finished, the machine tool spindle exits the machining area, the stock bin moves to the feeding area, and the workpiece spindle places the machined workpiece into the stock bin. The workpiece spindle inserts the processed workpiece into the material taking position, the material warehouse moves to clamp the processed workpiece into the material clamp, the workpiece spindle is driven to unclamp the processed workpiece, and the workpiece spindle is retracted along the Z-axis direction to separate from the processed workpiece.

S6, moving the material warehouse along the Y-axis direction to align the next row of workpieces with the workpiece spindle, and processing a new row of workpieces after the workpiece spindle takes materials.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. A multi-spindle, multi-station machining center, comprising:

a plurality of machine tool spindles (1) arranged in parallel with each other, and

Workpiece spindles (2) corresponding to the same number and positions of the machine tool spindles (1);

The machine tool spindle (1) can move along a Y-axis direction in a horizontal plane and an X-axis direction in a vertical plane;

The workpiece spindle (2) can move along the Z-axis direction in the horizontal plane, can rotate around the A-axis direction and can rotate around the C-axis direction;

The automatic feeding device is characterized by further comprising a material warehouse (3) capable of moving along the Y-axis direction in the horizontal plane, wherein the material warehouse (3) is provided with a plurality of workpiece groups, each workpiece group comprises workpieces (4) which are equal to the workpiece spindles (2) in number and correspond to the workpiece spindles (2) in position, the workpieces (4) are clamped on the material warehouse (3), and the workpiece spindles (2) can clamp the workpieces (4) corresponding to the workpiece spindles in position.

2. A multi-spindle multi-station machining center according to claim 1, characterized in that the machine spindle (1) and the magazine (3) are located on both sides of the workpiece spindle (2).

3. A multi-spindle multi-station machining center according to claim 1, wherein the axes of the machine tool spindles (1) are coplanar and the distances between adjacent two machine tool spindles (1) are equal; the axes of the workpiece spindles (2) are coplanar, and the distances between two adjacent workpiece spindles (2) are equal.

4. A multi-spindle multi-station machining center according to claim 3, wherein a plurality of said machine spindles (1) are arranged in the X-axis direction.

5. The multi-spindle multi-station machining center according to claim 1, further comprising a lathe bed (5), wherein a turntable (6) moving along the Z-axis direction is arranged on the lathe bed (5), the workpiece spindle (2) is arranged on the turntable (6), the turntable (6) can drive the workpiece spindle (2) to rotate around the a-axis direction, and the workpiece spindle (2) can drive the workpiece (4) to rotate around the C-axis direction.

6. The multi-spindle multi-station machining center according to claim 1, further comprising a machine body (5), wherein an upright (7) moving along the Y-axis direction is arranged on the machine body (5), a spindle box (8) capable of moving along the X-axis direction is arranged on the upright (7), and the machine tool spindle (1) is arranged in the spindle box (8).

7. A multi-spindle multi-station machining center according to claim 1, further comprising a bed (5), said magazine (3) being provided on said bed (5); the material warehouse (3) is fixedly provided with a material clamp (31), and the material warehouse (3) is provided with a material taking position capable of clamping the workpiece (4) into or moving out of the material clamp (31).

8. A multi-spindle multi-station machining center according to claim 1, further comprising a magazine (9) movable in the Z-axis direction, said magazine (9) comprising cutterheads (91) corresponding to the number and positions of the machine spindles (1), the axes of the tools on the cutterheads (91) being coplanar with the axes of the machine spindles (1) corresponding to the positions.

9. The multi-spindle multi-station machining center according to claim 8, further comprising a tool bed (5), wherein the tool magazine (9) is provided on the tool bed (5), and the tool magazine (9) is movable in a Z-axis direction, and the cutterhead (91) is rotatable around an a-axis direction.

10. A method of machining a machining center employing a multi-spindle multi-station machining center according to any one of claims 1 to 9, comprising the steps of:

S1, loading a workpiece into a material warehouse;

S2, firstly, moving a workpiece of a workpiece group along the Y-axis direction to enable the workpiece to move to a feeding area, secondly, rotating a workpiece spindle around the A-axis direction to enable the workpiece spindle to face to a workpiece to be fed, secondly, moving the workpiece spindle along the Z-axis direction to the feeding area and clamping the workpiece to be fed, secondly, loosening the workpiece to be fed by a workpiece clamping device of the workpiece warehouse, then, moving the workpiece spindle along the Z-axis direction to take out the workpiece, and finally, moving the workpiece along the Y-axis direction by the workpiece clamping device of the workpiece warehouse;

s3, rotating the workpiece main shaft around the A-axis direction to enable the workpiece main shaft to face the processing area, and enabling the workpiece main shaft to move to the processing area along the Z-axis direction;

S4, the machine tool spindle moves to a processing area along the X-axis direction and the Y-axis direction to process;

and S5, after the machining is finished, the machine tool spindle exits the machining area, the stock bin moves to the feeding area, and the workpiece spindle places the machined workpiece into the stock bin.