Flat wire motor stator copper wire milling equipment for flexible wire assembly

Abstract

The invention relates to flat wire motor stator copper wire milling equipment, which relates to the field of machining equipment, and comprises a lathe bed part, a main body part arranged on the lathe bed part, and a workpiece clamping unit modularly arranged on the main body part, the lathe bed part comprises a lathe bed, a main shaft sliding table arranged on the lathe bed and a main shaft module modularly arranged on the main shaft sliding table; the main body component comprises a vertical moving module which is modularly arranged, and the workpiece clamping unit is modularly arranged on the vertical moving module. The device is particularly suitable for a flat wire motor stator copper wire processing technology, modular structure design is carried out based on the processing technology, the device has the advantages of being high in speed, high in efficiency, high in flexibility, high in stability and low in cost, and the configuration requirement for automatic feeding and discharging can be met. The machine tool is compact in structure, small in occupied area, convenient to install and debug, easy to maintain and low in operation cost.

Description

Technical Field

[0001] The present invention relates to the field of processing equipment, and in particular to a milling processing equipment for stator copper wires of flat wire motors. Background Art

[0002] With the continuous boom of the new energy vehicle market, as one of the core components of new energy vehicles, the lightweight, high efficiency, miniaturization and low cost of the electric drive system are the future trends; and the integration of the electric drive system and the flat wire of the motor are the main technical routes to achieve lightweight and miniaturization. Using flat wires can greatly increase the slot fill factor (the proportion of the space occupied by the coil in the slot after the coil is placed in the slot), because there are gaps between round wires, while flat wires are more compact. Generally speaking, the higher the slot fill factor, the more conductors there are in the coil, the stronger the generated magnetic field, and the greater the power of the motor. Obviously, the market demand for flat wire motors will show an explosive increase. This poses challenges to the selection of higher speed, more efficient and lower cost automated assembly production equipment for flat wire motors.

[0003] As the previous process of laser welding, the flatness of the stator copper wire of the flat wire motor affects the consistency of laser welding and the fullness of the welding head. In the prior art, the overall punching method is mostly used to cut the ends of the copper wire flat, and there is no milling processing equipment specially designed for the above process. Although the existing punching equipment can meet the requirements of laser welding, it relies heavily on tools, and the quality of the cutting tool determines the quality of the punched end face of the copper wire. Moreover, each slot of the stator of the flat wire motor requires a cutting tool, so a device needs to install dozens of tools and each tool needs to be customized and purchased according to the specifications of the copper wire, which increases the procurement cost and the use and maintenance cost of the device. At the same time, because there are a large number of tools, as long as one tool is worn, it will affect the operation of the device, the error tolerance rate is low, and the maintenance frequency of the device is increased. Summary of the Invention

[0004] The purpose of the present invention is a series of modular designs and series-configured processing equipment developed specifically for the milling processing technology of stator copper wires of flat wire motors. It can be flexibly configured and combined into different configurations through each module according to the production line beat and production capacity requirements, and has the advantages of high speed, high efficiency, high flexibility, high stability and low cost. It has a structural design and milling process that are particularly suitable for the milling processing of stator copper wires of flat wire motors, has a dust suction system that can prevent copper chip pollution during the processing, has a fast and accurately positioned fixture, has a flexible choice of automated loading and unloading configuration, has a configuration choice that can be compatible with multiple control systems, has a tool changing system that can automatically change tools, the equipment structure is compact, covers a small area, is convenient for installation and commissioning, simple to repair, and has a low operation cost.

[0005] To achieve the above object, the technical solution of the present invention provides a flat wire motor stator copper wire milling processing device, including a bed body component, a main body component provided on the bed body component, and a workpiece clamping unit modularly provided on the main body component; the bed body component includes a bed body, a spindle slide provided on the bed body, and a spindle module modularly provided on the spindle slide; the main body component includes a vertically moving module provided modularly, and the workpiece clamping unit is modularly provided on the vertically moving module.

[0006] Preferably, the main body component further includes a horizontally arranged cross beam, and the vertically moving module is modularly provided on the cross beam and can move along the cross beam.

[0007] Preferably, the processing technology for stator copper wire milling is divided into metal side milling and surface milling.

[0008] Preferably, on the basis of selecting the current process plan for metal side milling and surface milling, it is also possible to conveniently switch to the processing technologies of plunge milling and spot-facing (milling).

[0009] Preferably, the control system connected to the device can be a CNC digital control system or an industrial robot control software.

[0010] Preferably, the same spindle slide can be detachably connected to one or more of the spindle modules at the same time.

[0011] Preferably, the same cross beam can be detachably connected to one or more of the vertically moving modules and the workpiece clamping unit at the same time.

[0012] Preferably, the spindle module includes a spindle adapter detachably provided on the spindle slide, a spindle provided on the spindle adapter, and a spindle seal plate provided on the spindle adapter and sleeving the spindle.

[0013] Preferably, the vertically moving module includes a saddle detachably provided on the cross beam and slidable along the cross beam, and a ram provided on the saddle and vertically movable along the saddle, and the workpiece clamping unit is provided on the side of the ram away from the saddle.

[0014] Preferably, the workpiece clamping unit includes a fixture body, a motor stator provided on the fixture body, a clamping power system for driving the fixture body, and a fixture positioning mechanism provided on the fixture body.

[0015] Preferably, a positioning and clamping device for realizing the rapid loading and unloading of the workpiece clamping unit is provided on the vertically moving module.

[0016] Preferably, a dust suction device is provided on the ram. The dust suction device can move with the ram and fit with the main spindle sealing plate to enclose the cutting tool in a closed machining area.

[0017] Preferably, a chip conveyor is provided on the bed body for collecting chips.

[0018] Preferably, different numbers of tool changing systems are provided on both sides of the bed body to achieve rapid tool changing operation.

[0019] Preferably, mounting interfaces for matching automatic loading and unloading devices are provided on both sides of the bed body.

[0020] Preferably, automated loading and unloading interfaces are provided on both sides of the bed body.

[0021] Preferably, a modular construction method is used to construct a device dedicated to the milling of flat wire motor stators by combining various machine tool modules.

[0022] Preferably, there is a preferred series of configurations; several series of configurations of this device are formed by selecting the quantity and position arrangement of each module.

[0023] Compared with the prior art, the advantages of the present invention are as follows:

[0024] The structure of the present invention adopts a modular design concept. Each component of the device is disassembled according to the modular concept, and there is a unified mounting interface between each module to achieve the interchangeable installation of modules with different configurations.

[0025] The structure of the present invention adopts a series of flexible configuration designs, and the configuration modules can be flexibly selected according to the rhythm and production capacity of the production line to improve the flexibility of line formation.

[0026] The structure of the present invention adopts the design concept of a machining center, replacing the punching and cutting processing method with a main spindle milling processing method, which has the advantages of fast cutting speed, good surface quality, simple structure, low investment cost, and convenient maintenance.

[0027] The structure of the present invention adopts a milling process with high rotational speed and low feed rate, reducing the influence of vibration generated during the machining process on the milling accuracy, and improving the machining quality and stability.

[0028] The processing technology adopted by the structure of the present invention is compatible with two types of standard metal processing cutting tools, which do not require special customization, have low procurement costs, and long service lives. And tool preparation can be carried out at the empty tool positions in the tool magazine, greatly shortening the tool procurement and replacement time, reducing the equipment downtime, and improving the utilization rate of the production line.

[0029] The structure of the present invention is compact, with a small floor area. It can flexibly select automated overall solutions such as robots or gantry manipulators for loading and unloading, and is fixed through the installation interfaces on the bed module to achieve overall transportation, avoiding secondary disassembly, installation, and adjustment of the equipment, significantly shortening the delivery time of the production line, and greatly reducing labor costs. Of course, it is also possible to adopt a manual loading and unloading solution assisted by manual labor or other equipment.

[0030] The structure of the present invention adopts a structural design that conforms to the processing technology of the stator copper wire of the flat wire motor. The flat wire motor is installed upside down (with the copper wire terminals facing down) for processing, which can effectively prevent the chips generated during processing from entering the motor due to gravity. It is also equipped with a dust suction device that can centrally collect the dust generated during the processing, effectively avoiding pollution and damage to the motor.

[0031] The present invention is simple to install, easy to debug, and convenient for maintenance, which can significantly reduce the assembly, debugging, and maintenance time after shutdown, and greatly improve the utilization rate of the production line. Description of the Drawings

[0032] Figure 1 Schematic structural diagram of the workpiece clamping unit in Embodiment 1;

[0033] Figure 2 Schematic structural diagram of the single-spindle bed component (No. F1) in Embodiment 1;

[0034] Figure 3 Schematic structural diagram of the double-spindle bed component (No. F2) in Embodiment 1;

[0035] Figure 4 Schematic structural diagram of the single-station crossbeam component (No. M1) in Embodiment 1;

[0036] Figure 5 Schematic structural diagram of the double-station crossbeam component (No. M2) in Embodiment 1;

[0037] Figure 6 Schematic structural diagram of the single-spindle flat wire motor stator copper wire milling machining center (F1 + M1 = A1) in Embodiment 1;

[0038] Figure 7 Schematic structural diagram of the double-spindle double-station flat wire motor stator copper wire milling machining center (F2 + M2 = A2) in Embodiment 1;

[0039] Figure 8 Schematic structural diagram of the double-spindle flat wire motor stator copper wire milling machining center (F2 + M1 = A3) in Embodiment 1;

[0040] Figure 9 Schematic structural diagram of the single-spindle flat wire motor stator copper wire milling machining center in Embodiment 2;

[0041] Figure 10 Schematic structural diagram of the milling machining center for the stator copper wire of the double-spindle flat wire motor in Embodiment 2;

[0042] Figure 11 Schematic structural diagram of the milling machining center for the stator copper wire of the double-spindle and double-station flat wire motor in Embodiment 2.

[0043] Reference numerals: 1, workpiece clamping unit; 11, motor stator; 12, fixture body; 13, fixture positioning mechanism; 14, clamping power system; 15, workpiece clamping unit one; 16, workpiece clamping unit two; 21, bed body; 22, spindle slide; 23, spindle adapter; 231, spindle adapter one; 232, spindle adapter two; 24, spindle seal plate; 241, spindle seal plate one; 242, spindle seal plate two; 25, spindle; 251, spindle one; 252, spindle two; 31, crossbeam; 32, saddle; 321, saddle one; 322, saddle two; 33, ram; 331, ram one; 332, ram two; 4, chip conveyor; 5, dust suction device; 51, dust suction device one; 52, dust suction device two; 6, cutting tool; 61, cutting tool one; 62, cutting tool two; 7, tool magazine; 71, tool magazine one; 72, tool magazine two; 8, bed body slide; 81, bed body slide one; 82, bed body slide two; 9, saddle base; 91, saddle base one; 92, saddle base two; F1, single-spindle bed body component; F2, double-spindle bed body component; M1, single-station crossbeam main body component; M2, double-station crossbeam main body component; A1, single-spindle and single-station processing equipment; A2, double-spindle and double-station processing equipment; A3, double-spindle and single-station processing equipment. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment 1

[0046] As Figures 1-8 shown, the embodiment of the present invention discloses a milling machining equipment for the stator copper wire of a flat wire motor, adopting a modular, standardized and serialized design method. The main structure of the equipment is conceptually divided into a bed body component and a main body component from the composition concept, and each component is developed modularly. The bed body component is functionally set as a spindle installation component, mainly composed of a bed body 21, a spindle slide 22 and a spindle 25; the main body component is functionally set as a workpiece and fixture installation unit, mainly composed of a crossbeam 31, a saddle 32, a ram 33 and a positioning and clamping device.

[0047] The bed body component and the main body component are functionally spliced according to the production line rhythm and production capacity requirements, and are equipped with a certain number of tool magazines 7, tool changing systems, and dust suction devices 5. A chip conveyor 4 is connected to the bottom for copper chip collection, completing the overall configuration of the machine tool.

[0048] In terms of the functions of the overall machine tool, the present invention realizes a series of various machine tool configurations. In terms of workstations, there are two types: single-station and double-station; in terms of the number of spindles 25, it can be divided into single-spindle and double-spindle; in terms of the configured functions of the tool magazine 7, it can be divided into single tool magazine 7, double tool magazines 7, and no tool magazine 7; in terms of the automation interface, it can be divided into robot loading and unloading and gantry manipulator loading and unloading; particularly, configurations with multiple workstations (greater than or equal to 3) and multiple spindles (greater than or equal to 3) can also be used to meet special production capacity requirements.

[0049] As Figure 1 shown, the workpiece clamping unit 1 adopted in the present invention is suitable for flexible automated production line grouping. It includes a fixture main body 12, a clamping power system 14, and a fixture positioning mechanism 13. This workpiece clamping unit 1 can clamp each pair of copper wire terminals separately, without the need to provide additional power. The workpiece and the fixture are loaded and unloaded as a whole, and are positioned and clamped through the fixture positioning mechanism 13. The workpiece clamping unit 1 for positioning, clamping, and holding the flat wire motor stator achieves high-precision positioning and maintains the clamping state through a one-plane-two-pin positioning method.

[0050] As Figures 2-3 shown, the bed body component adopts a modular design method. The spindle slide 22 is arranged on the bed body 21 to achieve X-axis movement. The spindle 25 is fixed to the spindle slide 22 through a spindle adapter 23, and multiple spindles 25 can be fixed in the same way. The bed body 21 adopts a large inclination angle design to facilitate chip discharge and collection. The modular designed horizontal slide structure enables the inverted installation of the machining spindle 25 (mechanical spindle or electric spindle) or the power head, and determines the number of machining spindles 25 according to the line rhythm and production capacity to achieve single-spindle or multi-spindle machining; for the modular designed bed body component, the corresponding installation interface structures on both sides of the bed body 21 are determined according to the automated loading and unloading method.

[0051] As Figures 4-5 shown, the main body component adopts a modular design method. The saddle 32 and the ram 33 are arranged on the crossbeam 31 to achieve the movement of the workpiece in the Y-axis and Z-axis directions. The positioning and clamping device of the workpiece clamping unit 1 is configured on the ram 33 to control the precise positioning and stable clamping of the fixture. For the modular designed main body component, different numbers of workpiece clamping units 1 can be selectively installed on the crossbeam 31 to achieve single-station or multi-station machining, improving the production line efficiency.

[0052] According to the serialized configuration scheme, this equipment can be combined into the following configurations: single-spindle single-station flat wire motor stator copper wire milling equipment (such as Figure 6 ), double-spindle double-station flat wire motor stator copper wire milling equipment (such as Figure 7 ), double-spindle single-station flat wire motor stator copper wire milling equipment (such as Figure 8 ). For other multi-station and multi-spindle configurations, the modules on the crossbeam 31 assembly and the spindle modules on the bed 21 can be increased accordingly to achieve.

[0053] The above serialized equipment is configured according to the production line rhythm and production capacity.

[0054] When double-spindle machining is selected, single-station or double-station (as shown in Figures 7-8 ) two working modes can be configured. When machining in the single-station machining mode, two spindles 25 are respectively equipped with a slot milling cutter and a face milling cutter to realize two processes of flattening and precision milling of the stator copper wire. Each spindle 25 only performs one process, so there is no need to change tools, and there is no need to configure an additional tool magazine 7 for tool change, which can avoid the consumption of tool change time, greatly reduce the auxiliary time, and thus improve the production rhythm; when machining in the double-station machining mode, each spindle 25 corresponds to a station, and two processes of copper wire flattening and end face precision milling need to be completed respectively. Therefore, the spindle module needs to change tools by configuring a tool magazine 7. In this way, two workpieces can be machined simultaneously on one machine tool, thus greatly improving the machining efficiency and production capacity, and reducing the floor area and equipment investment.

[0055] When a single spindle is selected, single-station machining can be chosen (shown in Figure 6). This is the most basic configuration of the equipment, and other configurations are extended and reconstructed on this basis. In addition, when a single spindle is selected, double-station machining can also be chosen. At this time, the waiting time for loading and unloading during single-station machining can be reduced. However, under the same cost, the configuration rhythm of the double-spindle single-station is faster, the efficiency is higher, and the production capacity is larger. Therefore, this configuration is not recommended.

[0056] Based on the production line automation configuration, robots or gantry manipulators can be selected for loading and unloading according to different rhythm requirements and line body planning. For single-station machining (shown in Figures 6 and 8), when a robot is selected for loading and unloading, the robot station can be installed at the fixed installation interface position on the left or right side of the bed 21, so that it can be in place after one installation and debugging, eliminating the time for secondary installation and adjustment, and greatly shortening the product delivery cycle; when a gantry manipulator is selected for loading and unloading, the gantry is installed at the fixed installation interface position on the upper side of the bed 21 to complete the splicing of the gantry. For double-station machining (such as Figure 7), it is recommended to choose robot loading and unloading. The robot stations are installed on both the left and right sides of the bed 21 at the same time, enabling separate and synchronous loading and unloading of two workpieces, avoiding the occupancy waiting during the loading and unloading by the gantry manipulator, shortening the loading and unloading time, and improving the production line rhythm. The above-mentioned automation interfaces are all configured on the bed 21, and the bed 21 adopts a modular design, and corresponding bed components can be manufactured according to specific configuration requirements.

[0057] Based on the production capacity requirements of the production line, single-station or double-station working modes can be selected. When the double-station processing mode is selected (shown in Figure 7), there are two sets of saddle 32 and ram 33 structures on the crossbeam 31, which can be independently controlled. A set of workpiece clamping unit 1 and a set of dust suction device 5 are installed on each set of saddle 32 and ram 33. For the dust suction device 5, it is fixed on the ram 33 and moves up and down with the ram 33. Before the spindle 25 performs machining, the dust suction device 5 moves down with the ram 33 to fit with the spindle seal plate 24, forming a sealed machining area, and at the same time enclosing the cutting tool 6 inside, and then machining is carried out. After machining is completed, the dust suction device 5 moves up with the ram 33. At this time, the sealed area is opened, and the remaining chips are driven out around the spindle 25. The independent negative pressure dust suction device 5 can resist the pollution of copper chips and copper powder to the motor.

[0058] For the tool magazine 7, a tool magazine 7 with a robot for tool change or a tool magazine 7 without a robot can be selected according to the additional functions of the spindle 25. When the spindle 25 does not have an additional auxiliary axis movement function, after moving the spindle 25 to a fixed tool change point, a tool magazine 7 with a robot for tool change is selected for tool change operation. When the spindle 25 has an additional movement function and can move along the axis of the spindle 25, a tool magazine 7 without a robot can be selected and the moving direction of the spindle module of the tool magazine 7 is fixed on both sides of the bed 21, and tool change is performed by the movement of the spindle 25. Select the tool change system according to the configuration requirements to improve the production line rhythm.

[0059] In addition, for each configured device, a chip conveyor 4 is configured to collect chips, and the chip conveyor 4 configured on the lower side of the bed 21 is used for collecting copper chips.

[0060] The present invention relates to the modular design and serialized structural configuration of a novel milling processing equipment for stator copper wires of flat wire motors. The cutting process is realized by using one or more spindles 25 on the bed component; a horizontal slide (spindle slide 22) is adopted on the bed component to realize the cutting feed and tool change operation of the spindle 25 in the X direction; one or more cross slides are flexibly adopted at the rear of the bed component according to the wire body beat to realize the movement of the workpiece in the Y and Z directions; a positioning and clamping device is adopted on the vertical slide to realize the rapid loading and unloading of the fixture and the workpiece as a whole; a dust suction device 5 is adopted in the middle area between the spindle 25 and the workpiece to centrally collect the copper powder generated during the cutting process; according to the requirements of the wire body beat, different numbers of tool change systems are adopted on both sides of the bed 21 to realize the rapid tool change operation; different automatic module interfaces are adopted on the bed 21 to realize the loading and unloading of the robot and the gantry manipulator; the chip conveyor 4 is adopted at the bottom of the bed 21 to centrally collect the copper chips; the dry processing method is adopted to realize green processing; the side milling and face milling processing process plans are adopted for processing; the structure and layout of the machining center are flexibly designed to perfectly meet the high-speed, high-efficiency, and high-precision mass processing requirements of the flat wire motor copper wire milling processing technology.

[0061] The equipment adopts the design concept of standardization and modularization. Each component that makes up the equipment, including the bed component, the main body component, the spindle 25, the workpiece clamping unit 1 and other modules, all adopt the design concept of standardization and modularization. There are highly unified installation interfaces between the components, and they can be flexibly assembled. Based on the modular design, each component can be mass-produced and assembled into equipment with different configurations by selecting modules. The module selection of single spindle or double spindle, the processing module selection of single station or double station, and the auxiliary mechanism selection of robot loading and unloading or gantry manipulator loading and unloading can be carried out. Especially for those with very high production capacity requirements, multiple spindle modules and multiple processing stations can also be configured.

[0062] The equipment is configurable, reconfigurable and scalable. Based on the modular design concept, different configured equipment can be assembled by flexibly selecting and matching each sub-module to meet the requirements of the production line beat and production capacity; the equipment can be quickly transformed to meet the processing of different specifications of motor stator copper wires by replacing the corresponding component modules; the production capacity can be quickly expanded by adding stations or adding spindles 25 on the basis of the original equipment.

[0063] Based on the process requirements of the flat wire motor stator copper wire processing, the fixed method with the head of the flat wire motor facing downwards can set the processing area below the motor, so that the copper chips generated during processing can directly fall due to gravity, effectively preventing the copper chips from entering the stator and polluting the motor; in addition, the dust suction device 5 added to the milling area can collect the copper powder generated by milling.

[0064] In terms of processing technology characteristics, the process of metal side milling is first applied to the processing of copper wires for flat wire motors, and the solutions of side milling and face milling are first integrated into the processing of stator copper wires for flat wire motors. First, the cutting method of side milling is adopted to cut the stator copper wires of the flat wire motor flat with a slot cutter, and then the milling method of face milling is adopted to finely mill the end face of the cut copper wire with a face milling cutter to meet the dimensional tolerance and surface roughness requirements of the copper wire end face. A total of 2 cutting tools 6 are used in the entire milling process, and both are standard metal cutting tools 6, with low procurement costs and convenient purchase. To improve processing efficiency, speed up the production beat to obtain higher production capacity, special cutting tools 6 can also be customized.

[0065] The structural design of the machine tool fully considers the expansion requirements of the milling process. Based on fully considering the current process solutions of side milling and face milling, it can also be conveniently switched to the processing processes of plunge milling and countersinking (milling) surfaces.

[0066] The spindle installation method is to invert the spindle 25 with the nose end facing up. During processing, the workpiece is located above the spindle 25, which conforms to the cutting process method of the stator copper wire of the flat wire motor and can avoid the accumulation of copper chips generated during processing on the workpiece surface, thus protecting the cleanliness of the workpiece.

[0067] The equipment is designed based on the concept of a machining center, with the same drive system as the machining center, basic components with sufficient stiffness, and a spindle 25 unit for rotary cutting. It can be adapted to the machining center controller, can flexibly configure the tool magazine 7 system, and can be automatically controlled through programming. Based on these characteristics, the equipment has the characteristics of a traditional machining center, rather than an unconventional special machine.

[0068] It is adapted to multiple control systems. This equipment is one of the processes in the stator assembly line of the flat wire motor. It can complete the entire cutting process through simple point-to-point motion trajectories and logical controls. Therefore, the operation control of the entire equipment can be achieved by using industrial robot control software, which has the universality of the automation assembly line control system. Compared with the traditional machining center, this equipment avoids relying on the CNC numerical control system and reduces the configuration requirements for the controller. Of course, a relatively high-end CNC numerical control system can also be used for control, such as the imported Siemens 828D numerical control system and the domestic Huazhong numerical control system.

[0069] Based on the fixture design for the milling process of the stator copper wire of the flat wire motor, the milling process with high speed and low feed, even if there are slight vibrations during the processing, will not affect the processing accuracy of the stator copper wire of the flat wire motor, enabling the fixture design of the flat wire motor to abandon the requirements of high rigidity, high positioning accuracy, and high clamping force of traditional fixtures, reducing the difficulty and cost of the fixture design of the flat wire motor.

[0070] The equipment fully considers the compatibility of automatic loading and unloading. It can be conveniently equipped with truss manipulator loading and unloading and robot loading and unloading. It can also use manual loading and unloading at the front end and manual loading and unloading with the help of a power-assisting system.

[0071] The workpiece can be circulated. The flat wire motor is pre-fixed on the clamping unit for transmission. The motor and the clamp are directly loaded and processed as a whole. Therefore, it can be reasonably scheduled and circulated according to the completion status of each workstation, eliminating the waiting time for occupying a position, speeding up the flow of workpieces and improving the production efficiency of the production line.

[0072] The workpiece clamping unit is used for clamping the stator of the flat wire motor and loading and unloading the whole workpiece. This unit is a special fixture for clamping the stator of the flat wire motor. The stator of the flat wire motor is fixed and clamped through the clamping and holding system. The positioning and clamping after loading can be achieved by the positioning method of two pins on one side. In order to improve the efficiency of loading and unloading and speed up the flow of workpieces, the zero-point quick-change system can be used for positioning and clamping.

[0073] The dust suction device 5 is fixed to the slide 33 and moves with the slide 33, so that it fits with the end of the main shaft 25 to form a closed negative pressure processing area, which can effectively absorb the copper powder generated by the processing and protect the motor from pollution.

[0074] The modular design of the bed 21 is a coordinated design of the modular design of the bed components and the automation interface. The bed 21 is designed with a large-angle slope to facilitate chip collection. The bed 21 is designed with automated loading and unloading interface modules that are used for connecting and fixing the robot station and can flexibly select the installation orientation, and an interface for truss fixed installation, eliminating the need for secondary development of the later automation station and saving development costs.

[0075] As a green processing method, dry milling is selected and a dust collecting device 5 is configured, thereby preventing the copper powder generated by the processing from being dispersed into the air and causing harm to the human body and the environment. In addition, a chip conveyor 4 is separately configured to lift and collect the copper chips, making it convenient to clean the copper chips.

[0076] The tool magazine system can be flexibly selected. Different numbers of tool magazines 7 can be selected according to the number of processing stations and spindles 25. According to the configuration of the auxiliary axial movement function of the spindle 25, tool magazines 7 with automatic tool change by a robot and tool magazines 7 without tool change by a robot can be selected. In addition, tools 6 can be always prepared in the reserved tool positions of tool magazines 7, which can avoid downtime and waiting due to tool 6 replacement.

[0077] Beautiful overall appearance design, simple structure and integrated machine tool outer protective cover, which can be easily set with automatic front door, automatic top door or manual front door to match the needs of robot loading and unloading, truss manipulator loading and unloading or manual loading and unloading.

[0078] It should be noted that: based on the traditional machine tool, through optimization, transformation, a series of configurations and the incorporation of milling processing schemes for side milling and face milling, the present invention realizes the milling processing of the copper wire of the flat wire motor stator. Therefore, the present invention is not limited to the equipment structure in the above specific embodiments, but defines a milling scheme for the copper wire of the flat wire motor stator, and forms a new type of processing equipment in combination with the traditional machining center module, which has the structure and characteristics of traditional machining and at the same time considers the design and configuration that match the integration of the equipment into the assembly line of the flat wire motor stator.

[0079] Embodiment 2

[0080] In terms of the overall structural layout of the present invention, it can be developed according to the machine tool structure of a gantry machining center, or according to the structure of a vertical machining center ( Figures 9 to 11 which is the preferred structure of a vertical machining center), or it can be improved on the basis of the frame of other vertical machining centers. The key lies in the arrangement of the spindle and the workpiece clamping unit, so that the equipment has the function of machining the copper wire of the flat wire motor stator.

[0081] The main difference between this embodiment and Embodiment 1 is that when developed according to the structure of a vertical machining center, the crossbeam module of the overall equipment is cancelled. The bed body module is in a right trapezoidal structure. The saddle 32 moves horizontally longitudinally on the upper end surface of the bed body 21, and the bed body slide 8 moves on the inclined surface of the bed body 21. The large-angle inclination design will not generate chip accumulation. Among them, Figure 10 the bed body slides 81 and 82 can be a parallel mechanism controlled by respective independent drive systems, or a series mechanism controlled by one drive system; Figure 11 in, the saddles 91 and 92 can be a parallel mechanism controlled by respective independent drive systems, or a series mechanism controlled by one drive system. The above bed body slides 81 and 82 can be a parallel mechanism controlled by respective independent drive systems, or a series mechanism controlled by one drive system.

[0082] Finally, it should be noted that: the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flat wire motor stator copper wire milling processing device for flexible wire grouping, characterized in that, It includes a bed component, a main body component provided on the bed component, and a workpiece clamping unit (1) modularly provided on the main body component; the bed component includes a bed body (21), a spindle slide (22) provided on the bed body (21), and a spindle module modularly provided on the spindle slide (22); the main body component includes a vertically moving module arranged modularly, and the workpiece clamping unit (1) is modularly provided on the vertically moving module.

2. The flat wire motor stator copper wire milling equipment for flexible wire grouping according to claim 1, characterized in that, The main body component further includes a horizontally arranged crossbeam (31), and the vertically moving module is modularly provided on the crossbeam (31) and can move along the crossbeam (31).

3. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 1 or 2, characterized in that The processing technology involved in stator copper wire milling is divided into metal side milling and face milling.

4. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 3, characterized in that Based on the selected process plan for current metal side milling and face milling, it is also possible to conveniently switch to the processing technologies of plunge milling and spot-facing (milling).

5. A flat wire motor stator copper wire milling and processing device for flexible wire grouping according to claim 1 or 2, characterized in that, The control system connected to the equipment can be a CNC digital control system or an industrial robot control software.

6. A flat wire motor stator copper wire milling and processing device for flexible wire grouping according to claim 1 or 2, characterized in that, The same spindle slide (22) can be detachably connected and replaced with one or more of the spindle modules at the same time.

7. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 6, characterized in that, The same crossbeam (31) can be detachably connected and replaced with one or more of the vertically moving modules and the workpiece clamping unit (1) at the same time.

8. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 7, characterized in that, The spindle module includes a spindle adapter (23) detachably provided on the spindle slide (22), a spindle (25) provided on the spindle adapter (23), and a spindle seal plate (24) provided on the spindle adapter (23) and sleeving the spindle (25).

9. A flat wire motor stator copper wire milling and processing equipment for flexible wire grouping according to claim 8, characterized in that, The vertically moving module includes a saddle (32) detachably provided on the crossbeam (31) and slidable along the crossbeam (31), and a ram (33) provided on the saddle (32) and vertically movable along the saddle (32), and the workpiece clamping unit (1) is provided on the side of the ram (33) away from the saddle one (321).

10. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 9, characterized in that The workpiece clamping unit (1) includes a fixture body (12), a motor stator (11) provided on the fixture body (12), a clamping power system (14) for driving the fixture body (12), and a fixture positioning mechanism (13) provided on the fixture body (12).

11. A flat wire motor stator copper wire milling and processing device for flexible wire grouping according to claim 10, characterized in that, A positioning and clamping device for realizing the rapid loading and unloading of the workpiece clamping unit (1) is provided on the vertically moving module.

12. A flat wire motor stator copper wire milling and processing device for flexible wire grouping according to claim 11, characterized in that, A dust suction device (5) is provided on the ram (33), and the dust suction device (5) can move along with the ram (33) and fit with the spindle seal plate (24) to enclose the cutter (6) in a closed machining area.

13. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 11, characterized in that, The bed body (21) is provided with a chip conveyor (4) for collecting chips.

14. A flat wire motor stator copper wire milling and processing device for flexible wire grouping according to claim 11, characterized in that, Tool change systems with different numbers are provided on both sides of the bed body (21) to realize rapid tool change operations.

15. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 11, characterized in that, Automated loading and unloading interfaces are provided on both sides of the bed body (21).

16. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 1 or 2, characterized in that, A modular construction method is used to construct a device dedicated to the milling processing of flat wire motor stators through the combination of various machine tool modules.

17. A flat wire motor stator copper wire milling processing device for flexible wire grouping according to claim 1 or 2, characterized in that, There are preferred serialized configurations; several series configurations of this device are formed by the selection of the quantity and position arrangement of each module.

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