CN110587323A - Linear motor driving device - Google Patents
Linear motor driving device Download PDFInfo
- Publication number
- CN110587323A CN110587323A CN201910956108.0A CN201910956108A CN110587323A CN 110587323 A CN110587323 A CN 110587323A CN 201910956108 A CN201910956108 A CN 201910956108A CN 110587323 A CN110587323 A CN 110587323A
- Authority
- CN
- China
- Prior art keywords
- cooler
- active cell
- linear motor
- stator
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000018199 S phase Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/015—Frames, beds, pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/017—Arrangements of ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a linear motor driving device, which is characterized in that a rotor and a connecting plate are arranged in a penetrating manner from outside to inside, and the pressing of the connecting plate is realized through a baffle and an inclined pressing block, so that the rotor is stably fixed on a cross beam, and the linear motor can be disassembled and replaced without integrally hoisting and disassembling the cross beam of a bridge type gantry machine tool, thereby greatly reducing the labor force of workers for disassembling and replacing, saving the time for disassembling and replacing, and improving the working efficiency of the gantry machine tool. According to the invention, 3% -10% of heat generated by the linear motor can be effectively discharged through the rotor cooler, so that the influence on the precision of a machine tool caused by the heat of the part transferred to the cross beam and generated thermal deformation is avoided. The cooling principle of the linear motor is shown in detail in the figure. The residual heat in the electric machine can likewise be removed by the stator cooler. Under nominal conditions, the heat rejected by the secondary component cooler can be up to 5% to 8% of the total power loss of the linear motor. The heat of the part is prevented from being transmitted to the cross beam and generating thermal deformation, and the precision of the machine tool is prevented from being influenced.
Description
Technical Field
The invention belongs to the field of machine tool driving devices, and particularly relates to a linear motor driving device.
Background
The existing linear motor for the machine tool is a driving motor which directly converts electric energy into linear motion mechanical energy, and because the linear motor has no gap of a transmission link and small motor inertia, a linear motor driving system formed by the linear motor driving motor can achieve higher frequency response and positioning accuracy, so that the linear motor driving system is more and more widely applied to high-speed and high-precision machine tools. In the application of the existing linear motor of a large bridge type gantry, the weight of a cross beam reaches about 10 tons, and a single rotor at one side is limited by the maximum thrust of the linear motor, so that the technical requirements of high speed and high acceleration cannot be met. In addition, the linear motor has the following problems: the magnetic force of the rotor and the stator of the linear motor is very large, so that the installation and maintenance of the linear motor have great problems. When the linear motor is applied to the X axis on the bridge type gantry, if the rotor of the linear motor is damaged or needs to be replaced, the beam needs to be lifted by a crane or a crane, and then the rotor needs to be replaced, so that the disassembly mode consumes time and labor, and is very inconvenient. In addition, the existing linear motor generates heat during operation, although a linear motor manufacturer designs circulating water cooling in the rotor during design, the linear motor manufacturer can only take away 85% -90% of heat, and the residual heat can be conducted to equipment and generate thermal deformation to affect the precision of a machine tool.
Disclosure of Invention
In view of the above problems in the prior art, the present invention is directed to a linear motor driving apparatus.
Therefore, the invention adopts the following technical scheme: a linear motor driving device is characterized in that each side part of a beam of a bridge type gantry machine tool is arranged on a corresponding machine tool body of the bridge type gantry machine tool through two groups of guide rail sliding block mechanisms with running directions parallel to each other, the linear motor driving device comprises a rotor, a rotor cooler, a stator and a stator cooler, the stator is arranged between the two groups of guide rail sliding block mechanisms, a stator mounting groove is formed in the machine tool body, and the stator is fixedly arranged on the stator mounting groove through the stator cooler;
the crossbeam on be provided with and be used for the installation T type groove of active cell, the active cell cooler set up in the top of active cell, the top of active cell cooler sets up the connecting plate, active cell cooler and connecting plate pass through screw fixed connection, active cell and active cell cooler correspond to wear to arrange in the hypomere portion in T type groove, the connecting plate wear to arrange in the upper segment portion in T type groove, the reservation portion has between the top in connecting plate and T type groove, be provided with the slant board in the reservation portion, the great part of width of slant board is located the outside portion of crossbeam
In addition to the above technical solutions, the present invention also includes the following technical features.
Each the crossbeam on be provided with two sets of linear electric motor drive arrangement, two sets of linear electric motor drive arrangement set up on same straight line, two sets of linear electric motor's phase place distribution is the same, two sets of linear electric motor drive arrangement's the outside is provided with the clamp plate, will through the clamp plate connecting plate and slant board top lean on, be provided with the dog between two sets of linear electric motor drive arrangement's the active cell, in addition, cable output direction and water-cooling interface face are arranged towards two sides, all set up the outside of crossbeam, easy to assemble. One set is set as a main motor, the other set is set as a slave motor, and as the main motor and the slave motor are used in parallel on the same auxiliary guide rail, the installation distance between the main motor and the slave motor must be separated by a defined distance size, so as to reach the consistent pole position.
The stator cooler include cooling tube and the reposition of redundant personnel piece that the cooling profile preparation takes shape, the stator both sides all be provided with the cooling tube, the both ends of two cooling tubes all through oil pipe articulate the reposition of redundant personnel piece, the stator with the bottom surface of stator mounting groove have the clearance, just the cooling tube with the lathe bed contact, because the contact surface of cooling tube and lathe bed is less to can reduce the heat of conduction for the lathe bed to minimumly, the reposition of redundant personnel piece is used for inserting the coolant and connects out the coolant, forms closed cooling circuit, and provides unified interface, makes things convenient for the income of coolant.
The two groups of linear motor driving devices share the same cooling pipe.
The active cell cooler include U type heat-conducting plate, heat insulating mattress and water conservancy diversion piece, the inside cooling cavity that forms of U type heat-conducting plate, the horizontal portion of U type heat-conducting plate set up in active cell and connecting plate between, the side direction portion of U type heat-conducting plate with the active cell lateral part relative, the horizontal portion of U type heat-conducting plate with the active cell between through a plurality of the heat insulating mattress keep apart, U type heat-conducting plate be provided with the water conservancy diversion piece, the water conservancy diversion piece is provided with coolant import and export. Through the structure, an air chamber with gaps is formed between the top of the cooler of the rotor and the two side surfaces of the cooler of the rotor and the rotor, air in the air chamber is ventilated, and heat insulation between the top surface and the side surfaces of the rotor and the cross beam is realized.
The invention can achieve the following beneficial effects: 1. according to the invention, the rotor and the connecting plate penetrate from outside to inside, and the pressing of the connecting plate is realized through the baffle and the inclined pressing block, so that the rotor is stably fixed on the cross beam, and the linear motor can be disassembled and replaced without integrally hoisting and disassembling the cross beam of the bridge type gantry machine tool, thereby greatly reducing the labor force for disassembling and replacing workers, saving the time for disassembling and replacing, and improving the working efficiency of the gantry machine tool.
2. According to the invention, 3% -10% of heat generated by the linear motor can be effectively discharged through the rotor cooler, so that the influence on the precision of a machine tool caused by the heat of the part transferred to the cross beam and generated thermal deformation is avoided. The cooling principle of the linear motor is shown in detail in the figure. The residual heat in the electric machine can likewise be removed by the stator cooler. Under nominal conditions, the heat rejected by the secondary component cooler can be up to 5% to 8% of the total power loss of the linear motor. The heat of the part is prevented from being transmitted to the cross beam and generating thermal deformation, and the precision of the machine tool is prevented from being influenced.
3. The two rotors are arranged on one side of the cross beam in a parallel connection mode, so that the problem that the single rotor of a large machine tool is limited by the maximum thrust of the linear motor is effectively solved, and the technical requirements of high speed and high acceleration are met.
Drawings
FIG. 1 is a schematic front view of the bridge gantry-mounted machine tool of the present invention.
Fig. 2 is a schematic structural view of a linear motor driving device mounted on a single-side beam.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
FIG. 4 is a schematic cross-sectional side view of the bridge gantry mounted machine tool of the present invention.
Fig. 5 is a schematic view of a stator cooler of the present invention.
Fig. 6 is a schematic view of a mover cooler of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1-6, each side of a beam 1 of a bridge gantry machine tool is mounted on a corresponding bed 2 of the bridge gantry machine tool through two groups of guide rail slider mechanisms 4 with running directions parallel to each other, a linear motor driving device 3 of the invention comprises a rotor 7, a rotor cooler 8, a stator 5 and a stator cooler 6, wherein the stator 5 is arranged between the two groups of guide rail slider mechanisms 4, the bed 2 is provided with a stator mounting groove, and the stator is fixedly mounted on the stator mounting groove through the stator cooler 6; be provided with the T type groove that is used for installing active cell 7 on crossbeam 1, active cell cooler 8 sets up in active cell 7's top, active cell cooler 8's top sets up the connecting plate, active cell 7, active cell cooler 8 and connecting plate 9 pass through screw fixed connection, active cell 7 and active cell cooler 8 correspond and wear to arrange in the hypomere portion in T type groove, the upper segment portion in T type groove is worn to arrange in connecting plate 9, reserved portion has between the top in connecting plate 9 and T type groove, be provided with inclined plate 10 in the reserved portion, the great part of width of inclined plate 10 is located the crossbeam outside.
Further preferably, two groups of linear motor driving devices are arranged on each cross beam 1, the two groups of linear motor driving devices are arranged on the same straight line, the phase distribution of the two groups of linear motors is the same, a pressing plate 11 is arranged on the outer side of each group of linear motor driving devices, the connecting plate and the inclined plate are abutted through the pressing plate 11, and a stop block 12 is arranged between the movers 7 of the two groups of linear motor driving devices.
Further preferably, the stator cooler 6 comprises a cooling pipe 61 and a shunting block 62 which are formed by manufacturing a cooling profile, the cooling pipe 61 is arranged on each of two sides of the stator, two ends of each of the two cooling pipes 61 are connected with the shunting block 62 through oil pipe joints, a gap is formed between the stator 5 and the bottom surface of the stator mounting groove, and the cooling pipe 61 is in contact with the lathe bed 2. Preferably, the two sets of linear motor drives share the same cooling tube 61.
Further preferably, the mover cooler 8 includes a U-shaped heat conducting plate 81, a heat insulating pad 83, and a flow guide block 82, a cooling cavity is formed inside the U-shaped heat conducting plate 81, a transverse portion of the U-shaped heat conducting plate 81 is disposed between the mover 7 and the connecting plate 9, a lateral portion of the U-shaped heat conducting plate 81 is opposite to a side portion of the mover, the transverse portion of the U-shaped heat conducting plate 81 is isolated from the mover 7 by the plurality of heat insulating pads 83, the U-shaped heat conducting plate 81 is provided with the flow guide block 82, and the flow guide block 82 is provided with a cooling medium inlet.
Preferably, each guide rail of the guide rail sliding block mechanism is further provided with a braking device, the braking device comprises a contact block, a wedge block, a piston, a spring, an adjusting bolt and the like, and the specific actions are as follows: the piston mechanism is pushed by the air pressure source, the contact block is not in contact with the guide rail at the moment, the braking device is released, and the cross beam can move. When the air pressure source is disconnected, the spring pushes the piston to move forwards by using the elastic force, and strong retaining force is generated by using the bevel edge effect of the wedge-shaped block, so that the braking effect that the machine tool abnormally stops moving is realized. The effectual solution of arresting gear is when the lathe breaks down and stops, when promptly stopping, the braking effect that plays under the multiple abnormal conditions such as during power failure effectively prevents that the crossbeam from sliding under the abnormal conditions and not causing danger by the brake: personal danger, cutter and work piece interfere and damage lathe or work piece, and the overstroke slides and leads to the crossbeam to rush out the condition such as guide rail, damage lathe.
Claims (5)
1. The utility model provides a linear electric motor drive arrangement, each lateral part of bridge type gantry machine tool crossbeam (1) is installed on lathe bed (2) that bridge type gantry machine tool corresponds through two sets of guide rail slider mechanisms (4) that their traffic direction parallels, its characterized in that: the linear motor driving device (3) comprises a rotor (7), a rotor cooler (8), a stator (5) and a stator cooler (6), wherein the stator (5) is arranged between the two groups of guide rail sliding block mechanisms (4), a stator mounting groove is formed in the lathe bed (2), and the stator is fixedly mounted on the stator mounting groove through the stator cooler (6);
crossbeam (1) on be provided with and be used for the installation the T type groove of active cell (7), active cell cooler (8) set up in the top of active cell (7), the top of active cell cooler (8) sets up the connecting plate, active cell (7), active cell cooler (8) and connecting plate (9) pass through screw fixed connection, active cell (7) and active cell cooler (8) correspond to wear to arrange in the hypomere portion in T type groove, connecting plate (9) wear to arrange in the upper segment portion in T type groove, reserved portion has between the top in connecting plate (9) and T type groove, is provided with inclined plate (10) in the reserved portion, the great part of width of inclined plate (10) is located the crossbeam outside.
2. A linear motor driving device according to claim 1, wherein: each crossbeam (1) on be provided with two sets of linear electric motor drive arrangement, two sets of linear electric motor drive arrangement set up on same straight line, two sets of linear electric motor's phase place distribution is the same, two sets of linear electric motor drive arrangement's the outside be provided with clamp plate (11), through clamp plate (11) with connecting plate and slant board top lean on, be provided with dog (12) between two sets of linear electric motor drive arrangement's active cell (7).
3. A linear motor driving apparatus according to claim 2, wherein: the stator cooler (6) comprises a cooling pipe (61) and a shunting block (62), wherein the cooling pipe (61) and the shunting block (62) are formed by cooling sectional materials, the two sides of the stator are respectively provided with the cooling pipe (61), the two ends of the two cooling pipes (61) are connected with the shunting block (62) through oil pipe joints, a gap is reserved between the stator (5) and the bottom surface of the stator mounting groove, and the cooling pipe (61) is in contact with the lathe bed (2).
4. A linear motor driving apparatus according to claim 3, wherein: the two groups of linear motor driving devices share the same cooling pipe (61).
5. A linear motor driving apparatus according to claim 4, wherein: active cell cooler (8) including U type heat-conducting plate (81), heat insulating mattress (83) and water conservancy diversion piece (82), the inside cooling cavity that forms of U type heat-conducting plate (81), the horizontal portion of U type heat-conducting plate (81) set up in active cell (7) and connecting plate (9) between, the side direction portion of U type heat-conducting plate (81) with the active cell lateral part relative, the horizontal portion of U type heat-conducting plate (81) with active cell (7) between through a plurality of heat insulating mattress (83) keep apart, U type heat-conducting plate (81) be provided with water conservancy diversion piece (82), water conservancy diversion piece (82) are provided with the coolant import and export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956108.0A CN110587323A (en) | 2019-10-10 | 2019-10-10 | Linear motor driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956108.0A CN110587323A (en) | 2019-10-10 | 2019-10-10 | Linear motor driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110587323A true CN110587323A (en) | 2019-12-20 |
Family
ID=68865963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910956108.0A Pending CN110587323A (en) | 2019-10-10 | 2019-10-10 | Linear motor driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110587323A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040070290A1 (en) * | 2001-07-06 | 2004-04-15 | Jae-Han Joung | Linear motor including cooling system |
| CN201608596U (en) * | 2009-12-15 | 2010-10-13 | 深圳市大族精密机电有限公司 | Cooling device for linear motor and linear motor comprising same |
| CN206105397U (en) * | 2016-11-03 | 2017-04-19 | 浙江日发航空数字装备有限责任公司 | Linear electric motor installation structure for bridge type gantry machine tools |
| CN206259841U (en) * | 2016-12-26 | 2017-06-16 | 深圳市海普智能装备技术有限公司 | Ironless linear motors |
| CN107147269A (en) * | 2017-05-31 | 2017-09-08 | 广州市昊志机电股份有限公司 | A kind of permanent-magnetism linear motor is secondary |
| CN206834970U (en) * | 2017-05-09 | 2018-01-02 | 东莞希思克传动科技有限公司 | A kind of linear electric motors platform of high efficiency and heat radiation |
| CN107910977A (en) * | 2017-11-09 | 2018-04-13 | 广州市昊志机电股份有限公司 | A kind of linear electric motor primary component of band isolation cooling structure |
| CN109149901A (en) * | 2018-10-09 | 2019-01-04 | 山东威达重工股份有限公司 | A kind of linear axis direct drive structure convenient for heat dissipation |
| CN210588142U (en) * | 2019-10-10 | 2020-05-22 | 浙江日发航空数字装备有限责任公司 | Linear motor driving device |
-
2019
- 2019-10-10 CN CN201910956108.0A patent/CN110587323A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040070290A1 (en) * | 2001-07-06 | 2004-04-15 | Jae-Han Joung | Linear motor including cooling system |
| CN201608596U (en) * | 2009-12-15 | 2010-10-13 | 深圳市大族精密机电有限公司 | Cooling device for linear motor and linear motor comprising same |
| CN206105397U (en) * | 2016-11-03 | 2017-04-19 | 浙江日发航空数字装备有限责任公司 | Linear electric motor installation structure for bridge type gantry machine tools |
| CN206259841U (en) * | 2016-12-26 | 2017-06-16 | 深圳市海普智能装备技术有限公司 | Ironless linear motors |
| CN206834970U (en) * | 2017-05-09 | 2018-01-02 | 东莞希思克传动科技有限公司 | A kind of linear electric motors platform of high efficiency and heat radiation |
| CN107147269A (en) * | 2017-05-31 | 2017-09-08 | 广州市昊志机电股份有限公司 | A kind of permanent-magnetism linear motor is secondary |
| CN107910977A (en) * | 2017-11-09 | 2018-04-13 | 广州市昊志机电股份有限公司 | A kind of linear electric motor primary component of band isolation cooling structure |
| CN109149901A (en) * | 2018-10-09 | 2019-01-04 | 山东威达重工股份有限公司 | A kind of linear axis direct drive structure convenient for heat dissipation |
| CN210588142U (en) * | 2019-10-10 | 2020-05-22 | 浙江日发航空数字装备有限责任公司 | Linear motor driving device |
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