WO2016019829A1 - 拉杆式斜切割机 - Google Patents

拉杆式斜切割机 Download PDF

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Publication number
WO2016019829A1
WO2016019829A1 PCT/CN2015/085704 CN2015085704W WO2016019829A1 WO 2016019829 A1 WO2016019829 A1 WO 2016019829A1 CN 2015085704 W CN2015085704 W CN 2015085704W WO 2016019829 A1 WO2016019829 A1 WO 2016019829A1
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WO
WIPO (PCT)
Prior art keywords
motor
assembly
rocker arm
positioning
brushless motor
Prior art date
Application number
PCT/CN2015/085704
Other languages
English (en)
French (fr)
Inventor
葛树兴
徐松涛
李玉红
张小荣
Original Assignee
常州合力电器有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201410385347.2A external-priority patent/CN104139212B/zh
Priority claimed from CN201420442725.1U external-priority patent/CN204053106U/zh
Application filed by 常州合力电器有限公司 filed Critical 常州合力电器有限公司
Publication of WO2016019829A1 publication Critical patent/WO2016019829A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/14—Sawing machines or sawing devices with circular saw blades or with friction saw discs for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut

Definitions

  • the invention relates to the field of cutting machines, and in particular to a rod type oblique cutting machine in which a saw blade can move along a radial direction thereof.
  • the oblique cutting machine As a cutting tool that can cut metal materials and cut non-metal materials, the oblique cutting machine is widely used in various industries.
  • the oblique cutting machine is easy to operate and has high cutting efficiency.
  • the cutting operation can be performed by pressing the operating handle; when the workpiece to be cut is wider, the operating handle can be pulled to cause the saw blade to move radially, thereby cutting the workpiece; when cutting at a certain angle, the Adjusting the rocker arm tilts the blade to produce a corresponding angle to achieve a certain angle of cutting.
  • the driving motor of the conventional oblique cutting machine adopts an AC motor, and the AC motor is large in volume, and the axis of the AC motor and the saw blade are arranged perpendicular to each other, so that the saw blade is inclined when tilted to the side where the AC motor is located.
  • the amplitude is affected and the range of tilt angles is small.
  • the belt transmission method is adopted, and the structure is large in size and inconvenient to transport, especially when the product is exported, the transportation cost is greatly increased.
  • Others use a smaller DC external rotor motor for driving.
  • the rotor portion of a conventional outer rotor motor generally includes a casing, a permanent magnet, and a magnetic permeable ring, wherein the permanent magnet is further divided into an N pole and an S pole due to a magnetization direction, hereinafter referred to as an N permanent magnet and an S permanent magnet.
  • the casing is usually aluminum die-casting. Because the drive shaft needs to be matched with the magnetic coil to achieve the requirements of the outer rotor, the magnetic coil must be fixed in the casing.
  • the magnetic conductive ring is usually a silicon steel sheet punching piece, and a groove for positioning the permanent magnet is processed in the magnetic conductive ring, the permanent magnet is fixed in the groove on the magnetic conductive ring, and the N permanent magnet and the S permanent magnet are alternately arranged.
  • the motor magnetic coil of the structure is usually a single component, which leads to a large increase in production cost.
  • the magnetic coil is provided with a groove for mounting a permanent magnet, which is cumbersome and difficult to process, further increasing the production cost;
  • the magnetic coil is fixedly mounted in the casing, it is usually provided with 3 to 6 counterbore holes extending through its body in the axial direction at equal intervals of the magnetic coil, and then by screwing on the corresponding casing on the casing The bolt fixes the magnetic coil on the casing.
  • This installation method is not only troublesome to install but also requires high processing precision, otherwise the magnetizer cannot be placed in the casing.
  • the Chinese patent document CN202405895U (patent application No.
  • 201120567379.6 discloses "an outer rotor permanent magnet motor rotor structure" in which it is described that: “the casing opens a first groove on the inner rotating surface, and the iron arc-shaped cage is The segmentation method is embedded in the casing, and the number of segments can be determined according to the number of permanent magnets and the inner diameter of the casing.
  • the bottom inner surface of the cage 5 is provided with a boss, and the second groove formed between the adjacent bosses is disposed. There are S permanent magnets or N permanent magnets, and the magnetic poles of the permanent magnets on both sides of the same boss are extremely opposite.” It can be seen that the cage is complicated to install and the production and installation efficiency is low.
  • the multi-segment cage is arranged in the same first groove, which is troublesome to install and requires high processing precision for the cage, not only to ensure each
  • the connection between the cages is accurate and it is ensured that the cages are inserted into the first recesses after being connected; secondly, it is ensured that the cages not in the same first recess correspond to each other in the axial direction of the casing, Otherwise, the permanent magnets may not be installed, and the installation efficiency is greatly reduced.
  • the cages are embedded in the casing, and the first groove is opened on the inner rotating surface of the casing, which is troublesome to process, and the thickness of the casing needs to be correspondingly increased, resulting in a corresponding increase in the thickness of the casing. Production costs have increased accordingly.
  • the object of the present invention is to provide a drawbar type oblique cutting machine which has a simple structure and a large range of bidirectional cutting angle adjustment and a small volume.
  • the basic technical solution for achieving the object of the present invention is: a tie rod type oblique cutting machine, which is characterized by: a base, a work table, a support, a rocker arm, a slide bar assembly, a fuselage, a drive device, a control device and a saw blade .
  • the base is a one piece.
  • the left and right sides of the base are provided with support portions that protrude upward.
  • An angle ruler is arranged on the front side of the center of the base.
  • the workbench includes a turntable, a guard and a table adjustment assembly.
  • the rotating table of the table is rotatably disposed on the base between the support portions on the left and right sides of the base and the upper surface of the turntable is in the same horizontal plane as the upper surface of the support portion.
  • the rotating table is provided with a slit groove in the front and rear direction.
  • the worktable is provided with a table adjustment assembly along the front and rear direction, and the table adjustment assembly is configured to move the rotation table and lock the rotation table on the base.
  • the support is fixedly disposed on the upper rear portion of the support portion of the base, and the scale is provided on the front side of the support.
  • the rocker arm assembly includes a rocker arm, a rocker arm locking device, a slider locking device and a handle.
  • the rocker arm is disposed on the rear end of the turntable and is rotatable to the left and right sides.
  • the rocker arm locking device is disposed on the rocker arm, and the rocker arm is locked to the rotating table at an angle by the rocker arm locking device.
  • a slider locking device is disposed on the upper side of the rocker arm for locking and fixing the slider of the slider assembly to the rocker arm.
  • the handle is fixedly placed on the upper side of the rocker arm.
  • the slider assembly includes a slider and a body mount.
  • the body includes a motor mount, a left outer cover, a right outer cover, a moving cover, and a handle.
  • the motor mount is rotatably disposed on the body mount of the slider assembly.
  • the left outer cover is fixedly mounted on the motor mount from the left side.
  • a dust guiding groove is provided at the rear left side of the motor mount.
  • the handle is fixed on the right side of the motor mount.
  • the right outer cover is fixedly mounted on the motor mount from the right side and covers the corresponding portion of the handle.
  • a dust collecting port is formed between the corresponding portion of the rear portion of the left outer cover and the corresponding portion of the rear portion of the right outer cover.
  • the dust collection port encloses the corresponding portion of the rear of the dust guiding groove.
  • the moving cover is fixedly disposed on the left outer cover.
  • the driving device is a DC brushless motor
  • the DC brushless motor includes a brushless motor outer rotor assembly and a stator.
  • the brushless motor outer rotor assembly includes a motor casing, a cage, a permanent magnet, and a drive shaft.
  • the motor casing is made of iron or low carbon steel.
  • the motor casing has an open-up housing, and the wall thickness of the motor casing is 2 mm to 6 mm.
  • the drive shaft is coaxially fixed in the motor casing and protrudes upward from the motor casing.
  • the cage is an injection molded piece.
  • the cage includes a positioning portion.
  • the positioning portion has a cylindrical shape as a whole, and has a wall thickness of 1/3 to 1 of the thickness of the permanent magnet.
  • the outer diameter of the positioning portion corresponds to the inner diameter of the motor case.
  • the positioning portion is provided with positioning grooves of the same number as the number of permanent magnets at equal intervals in the circumferential direction thereof, and the shape thereof corresponds to the permanent magnet.
  • the cage is adhesively fixed in the motor housing.
  • the permanent magnet includes an N permanent magnet and an S permanent magnet, and the N permanent magnet and the S permanent magnet are sequentially arranged alternately in each positioning groove of the cage, and are fixedly disposed on the motor casing.
  • the stator is fixedly mounted on the motor mount of the fuselage.
  • the axis of the stator is horizontally disposed to the left and right.
  • the outer rotor assembly of the brushless motor is disposed on the motor mount of the fuselage by its corresponding drive assembly rotating from right to left through the stator, and the corresponding part of the stator is located in the motor casing.
  • the saw blade is detachably fixed on the drive shaft of the outer rotor assembly of the brushless motor of the driving device, and the corresponding portion is located between the motor mount and the left outer cover of the fuselage.
  • the control device is fixedly disposed on the right outer cover of the body and located at the front upper side of the driving device. The drive device and the control device are electrically connected.
  • a further technical solution based on the above basic technical solution is that the center of the bottom of the motor casing of the outer rotor assembly of the brushless motor is provided with a shaft hole extending through the upper and lower sides thereof, and the shaft hole is formed by punching and stretching, and the axial direction of the shaft hole The depth is 4 mm to 10 mm.
  • the technical solution based on the above technical solution is that the bottom of the motor casing of the outer rotor assembly of the brushless motor is further provided with a set of heat dissipation holes penetrating the upper and lower sides thereof.
  • the louvers are placed around the shaft holes.
  • the cage of the outer rotor assembly of the brushless motor further comprises an upper limit portion.
  • the inner diameter of the upper limit portion corresponds to the inner diameter of the motor casing, and the outer diameter of the upper limit portion is smaller than the outer diameter of the motor casing.
  • the upper limit portion is provided on the upper outer circumference of the positioning portion. Each of the positioning grooves of the positioning portion is open upward and penetrates the wall of the tube in the radial direction along the positioning portion.
  • the technical solution based on the above corresponding technical solution is that the drive shaft of the outer rotor assembly of the brushless motor is interference-fitted with the motor casing, and the drive shaft passes through the shaft hole of the motor casing from the lower end thereof.
  • the outer rotor assembly of the brushless motor further comprises a fan blade, and the fan blade is an integral part of the injection molding, and the blade is fixedly disposed on the lower end of the drive shaft, and is located below the motor casing. The surface is in contact with the lower surface of the motor casing.
  • the technical solution based on the above corresponding technical solutions is: further comprising a pressing device.
  • a pressing device There are two pressing devices, and two pressing devices are respectively fixedly disposed on the left and right ends of the supporting, and respectively located on the corresponding supporting portions on the left and right sides of the base.
  • the technical solution based on the above corresponding technical solutions is: further comprising a pressing device.
  • a pressing device There are two pressing devices, and two pressing devices are respectively fixedly disposed on the left and right ends of the supporting, and respectively located on the corresponding supporting portions on the left and right sides of the base.
  • the technical solution based on the above corresponding technical solutions is: also includes a body positioning device and a depth adjustment device Set.
  • the body positioning device includes an adjustment hand wheel and a positioning shaft.
  • the adjusting hand wheel is fixedly disposed on the right end of the positioning shaft, the positioning shaft is a screw, and the positioning shaft is rotated in the left and right direction on the right upper portion of the body connecting seat of the sliding bar assembly.
  • the depth adjustment device includes an adjustment screw and a limit column.
  • the adjusting screw is rotated up and down to be disposed on the right rear portion of the motor mount of the body.
  • the upper end of the adjusting screw is provided with a corresponding hand wheel.
  • the limiting post is fixedly disposed on the front lower portion of the body connector of the slider assembly.
  • the technical solution based on the above corresponding technical solutions is: further comprising a body positioning device and a depth adjusting device.
  • the body positioning device includes an adjustment hand wheel and a positioning shaft.
  • the adjusting hand wheel is fixedly disposed on the right end of the positioning shaft, the positioning shaft is a screw, and the positioning shaft is rotated in the left and right direction on the right upper portion of the body connecting seat of the sliding bar assembly.
  • the depth adjustment device includes an adjustment screw and a limit column.
  • the adjusting screw is rotated up and down to be disposed on the right rear portion of the motor mount of the body.
  • the upper end of the adjusting screw is provided with a corresponding hand wheel.
  • the limiting post is fixedly disposed on the front lower portion of the body connector of the slider assembly.
  • the technical solution based on the above corresponding technical solutions is: further comprising a battery.
  • the battery is detachably attached to the right outer cover of the body and is located at the rear of the drive unit.
  • the drive device, the control device and the battery are electrically connected to each other.
  • the technical solution based on the above corresponding technical solutions is as follows: a dust cover is also included.
  • the dust cover is fixedly disposed on the right outer cover of the body from the right side, and covers the driving device, the control device and the corresponding portion of the battery.
  • FIG. 1 is a schematic structural view of a drawbar type oblique cutting machine of the present invention
  • Figure 2 is a right side view of Figure 1;
  • Figure 3 is a plan view of Figure 1;
  • Figure 4 is a schematic view as seen from the upper right rear side of Figure 1;
  • Figure 5 is a schematic view when viewed from the upper left front side of Figure 1;
  • Figure 6 is a schematic view of the dust cover removed when viewed from the upper right front side of Figure 1;
  • Figure 7 is a schematic view of the dust cover and the moving cover removed from the front right upper side of Figure 1;
  • Figure 8 is a schematic view of the left outer cover, the right outer cover, the moving cover, the handle, the saw blade and the dust cover when viewed from the upper right front side of Figure 1;
  • Figure 9 is a schematic view of the left outer cover, the right outer cover, the moving cover, the handle, the saw blade and the dust cover when viewed from the upper left front side of Figure 1;
  • Figure 10 is a schematic view showing the dust cover, the moving cover and the outer rotor assembly of the brushless motor removed when viewed from the upper right front side of Figure 1;
  • FIG. 11 is a schematic structural view of a brushless motor outer rotor assembly of a brushless DC motor according to the present invention.
  • Figure 12 is a schematic view as seen from the upper side of Figure 11;
  • Figure 13 is a cross-sectional view taken along line A-A of Figure 11;
  • Figure 14 is a plan view of Figure 11;
  • Figure 15 is a schematic view of the motor casing as seen from the upper side of Figure 11;
  • Figure 16 is a schematic view of the motor casing as seen from the lower side of Figure 11;
  • Figure 17 is a schematic view of the cage of Figure 14;
  • Figure 18 is a perspective view of Figure 17;
  • Figure 19 is a schematic view of the motor casing and the cage when viewed from above in the upper direction of Figure 11;
  • Figure 20 is a schematic view of the motor casing, the cage and the permanent magnet when viewed from above in the upper direction of Figure 11;
  • Figure 21 is a schematic view of the blade when viewed from above in the upper direction of Figure 11;
  • Fig. 22 is a schematic view of the blade as seen from the lower side of Fig. 11;
  • Base 1 support 1-1, table 2, turntable 2-1, guard 2-2, table adjustment assembly 2-3, support 3, hold down device 4, rocker assembly 5, rocker arm 5 -1, rocker locking device 5-2, slide bar locking device 5-3, handle 5-4, slide bar assembly 6, slide bar 6-1, fuselage connector 6-2, body 7, Motor mount 7-1, dust guide slot 7-1-1, left outer cover 7-2, right outer cover 7-3, moving cover 7-4, handle 7-5, dust collection port 7-6, drive unit 8, Brushless motor outer rotor assembly 8-1, motor housing 8-1-1, shaft hole 8-1-11, heat dissipation hole 8-1-12, cage 8-1-2, positioning unit 8-1- 21, positioning groove 8-1-21-1, upper limit portion 8-1-22, permanent magnet 8-1-3, drive shaft 8-1-4, fan 8-1-5, stator 8-2, Control device 9, battery 10, angle rule 11, scale 12, saw blade 13, dust cover 14, body positioning device 15, depth adjustment device 16.
  • the description of the orientation of the present invention is performed in accordance with the orientation shown in Fig. 1, that is, the up, down, left, and right directions shown in Fig. 1 are the vertical and horizontal directions described above, and one of the directions shown in Fig. 1 is the front side, and the one facing away from Fig. 1 is the rear side.
  • the rod type oblique cutting machine of the present invention comprises a base 1, a table 2, a support 3, a pressing device 4, a rocker arm 5, a slide bar assembly 6, a fuselage 7, a driving device 8, and a control
  • the base 1 is a single piece.
  • the left and right sides of the base 1 are provided with support portions 1-1 protruding upward.
  • An angle rule 11 is provided on the front side of the center of the base 1.
  • the table 2 includes a rotary table 2-1, a shield 2-2, and a table adjustment assembly 2-3.
  • the turntable 2-1 of the table 2 is rotatably disposed on the base 1 between the support portions 1-1 on the left and right sides of the base 1, and the upper surface of the turntable 2-1 is identical to the upper surface of the support portion 1-1.
  • the rotary table 2-1 of the table 2 can be rotated left and right to adjust a certain angle, and the angle at which the table 2 is rotated can be determined according to the angle rule on the base 1.
  • the turntable 2-1 is provided with a slit groove 2-1-1 in the front-rear direction.
  • the guard plate 2-2 has two pieces, and the two guard plates 2-2 are respectively disposed on the left and right sides of the upper portion of the slit groove 2-1-1, and are located below the upper surface of the turntable 2-1.
  • the shield 2-2 is used to protect the turntable 2-1.
  • a table adjustment assembly 2-3 is provided on the table 2 in the front-rear direction, and the table adjustment assembly 2-3 is configured to move the rotation table 2-1 and lock the rotation table 2-1 on the base 1.
  • the support 3 is fixedly disposed on the upper rear portion of the support portion 1-1 of the base 1, and the scale 12 is provided on the front side of the support 3.
  • There are two pressing devices 4, and two pressing devices 4 are respectively fixedly disposed on the left and right ends of the support 3, and are respectively located on the corresponding supporting portions 1-1 on the left and right sides of the base 1 for the workpiece to be cut. It is fixed on the base 1.
  • the rocker arm assembly 5 includes a rocker arm 5-1, a rocker arm locking device 5-2, a slider locking device 5-3, and a handle 5-4.
  • the rocker arm 5-1 is rotatably disposed on the rear end of the turntable 2-1 and is rotatable to the left and right sides.
  • the rocker locking device 5-2 is disposed on the rocker arm 5-1, and the rocker arm 5-1 is locked to the rotating table 2-1 at an angle by the rocker arm locking device 5-2.
  • the slider locking device 5-3 is disposed on the upper side of the rocker arm for locking and fixing the slider 6-1 of the slider assembly 6 to the rocker arm 5-1.
  • the handle 5-4 is fixedly disposed on the upper side of the rocker arm 5-1 for moving the carrier-type oblique cutter.
  • the lower front side of the rocker arm assembly 5 is also provided with an angle gauge for displaying the angle of rotation thereof (not shown in the drawings).
  • the slide bar assembly 6 includes a slide bar 6-1 and a fuselage mount 6-2.
  • the rear portions of the two slide bars 6-1 are fixedly connected by respective connecting members.
  • the body connector 6-2 is fixedly disposed on the front end of the two sliders 6-1.
  • the body 7 includes a motor mount 7-1, a left outer cover 7-2, a right outer cover 7-3, a moving cover 7-4, and a handle 7-5.
  • the motor mount 7-1 is rotatably disposed on the body connector 6-2 of the slider assembly 6.
  • the left outer cover 7-2 is fixedly disposed on the motor mount 7-1 from the left side.
  • a dust guiding groove 7-1-1 is provided at the rear left side of the motor mount 7-1.
  • the handle 7-5 is fixedly disposed on the right side of the motor mount 7-1.
  • the right outer cover 7-3 is fixedly disposed on the motor mount 7-1 from the right side, and covers the corresponding portion of the handle 7-5.
  • a dust collecting port 7-6 is formed between the rear corresponding portion of the left outer cover 7-2 and the rear corresponding portion of the right outer cover 7-3.
  • the dust collecting port 7-6 encloses the corresponding portion of the rear portion of the dust guiding groove 7-1-1.
  • the moving cover 7-4 is fixedly disposed on the left outer cover for protecting the corresponding saw blade from being damaged and the safety of the carrying person when carrying the rod type oblique cutting machine.
  • the driving device 8 is a DC brushless motor
  • the DC brushless motor includes a brushless motor outer rotor assembly 8-1 and a stator 8-2.
  • the brushless motor outer rotor assembly includes a motor case 8-1-1, a retainer 8-1-2, a permanent magnet 8-1-3, a drive shaft 8-1-4, and a vane 8 -1-5.
  • the motor casing 8-1-1 is an integral piece made of iron or low carbon steel, and the motor casing 8-1-1 of the present embodiment is made of 20 steel.
  • the motor case 8-1-1 is an open-up housing, and the motor case 8-1-1 has a wall thickness of 2 mm to 6 mm (3 mm in this embodiment).
  • the center of the bottom of the motor casing 8-1-1 is provided with a shaft hole 8-1-11 extending through the upper and lower sides thereof, and the shaft hole 8-1-11 is formed by press drawing, and the axial depth of the shaft hole 8-1-11 It is required to be 4 mm to 8 mm (6 mm in this embodiment).
  • the bottom of the motor casing 8-1-1 is provided with a set of heat dissipation holes 8-1-12 penetrating the upper and lower sides thereof. The heat dissipation holes 8-1-12 are disposed around the shaft hole 11.
  • the holder 8-1-2 is an injection molded unitary piece.
  • the holder 8-1-2 includes a positioning portion 8-1-21 and an upper limit portion 8-1-22.
  • the positioning portion 8-1-21 has a cylindrical shape as a whole, and has a wall thickness of 1/3 to 1 of the thickness of the permanent magnet 8-1-3 (the wall thickness of the positioning portion 8-1-21 of the present embodiment is a permanent magnet 8- 1/2 of the thickness of 1-3).
  • the outer diameter of the positioning portion 8-1-21 corresponds to the inner diameter of the motor case 8-1-1.
  • the positioning portions 8-1-21 are provided with positioning grooves 8-1-21-1 having the same number as the permanent magnets 8-1-3 along the circumferentially equally spaced angles; each positioning groove 8-1-21-1 is open
  • the tube wall is penetrated upward and along the positioning portion 8-1-21 in a radial direction, and its shape corresponds to the permanent magnet 8-1-3.
  • the inner diameter of the upper limit portion 8-1-22 corresponds to the inner diameter of the motor case 8-1-1, and the outer diameter of the upper limit portion 8-1-22 is smaller than the outer diameter of the motor case 8-1-1.
  • the upper limit portion 8-1-22 is provided on the upper outer circumference of the positioning portion 8-1-21.
  • the holder 8-1-2 is adhesively fixedly disposed in the motor casing 8-1-1, and its upper and lower positions in the motor casing 8-1-1 are positioned by the upper limit portion 8-1-22 thereof. .
  • the permanent magnet 8-1-3 includes an N permanent magnet and an S permanent magnet, and the N permanent magnet and the S permanent magnet are sequentially arranged alternately in each positioning groove 8 of the holder 8-1-2. In 1-21-1, and bonded to the motor housing 8-1-1. The upper surface of the permanent magnet 8-1-3 is flush with the upper surface of the motor case 8-1-1.
  • the drive shaft 8-1-4 is coaxially fixedly disposed in the motor housing 8-1-1 and extends upwardly out of the motor housing.
  • the drive shaft 8-1-4 has an interference fit with the motor case 8-1-1, and the drive shaft 8-1-4 passes through the lower end thereof through the shaft hole 8-1-11 of the motor case 8-1-1.
  • the blades 8-1-5 are integrally molded, and the blades 8-1-5 are fixedly disposed on the lower end of the drive shaft 8-1-4 at the motor casing.
  • the upper surface is in contact with the lower surface of the motor casing 8-1-1, and the airflow inside the motor casing 8-1-1 can be dissipated through the heat dissipation when the blades 8-1-5 rotate.
  • Hole 8-1-12 is drawn out.
  • the stator 8-2 is fixedly disposed on the motor mount 7-1 of the body 7.
  • the axis of the stator 8-2 is horizontally disposed to the left and right.
  • the brushless motor outer rotor assembly 8-1 passes through the drive shaft 8-1-4 through the stator 8-2 from right to left.
  • the corresponding bearing assembly is rotatably disposed on the motor mount 7-1 of the fuselage 7, and the corresponding portion of the stator 8-2 is located in the motor housing 8-1-1.
  • the control device 9 is fixedly disposed on the right outer cover 7-3 of the body 7, located in front of the front of the drive unit 8.
  • the battery 10 is detachably fixed to the right outer cover 7-3 of the body 7, and is located at the rear upper side of the driving device 8.
  • the drive unit 8, the control unit 9 and the battery 10 are electrically connected to each other.
  • the saw blade 13 is detachably fixed on the drive shaft 8-1-4 of the brushless motor outer rotor assembly 8-1 of the driving device 8, and the corresponding portion is located at the motor mount 7-1 and the left outer cover 7 of the fuselage 7. Between -2.
  • the dust cover 14 is fixedly disposed on the right outer cover 7-3 of the body 7 from the right side, and covers the driving device 8, the control device 9, and the corresponding portion of the battery 10.
  • the rod type oblique cutting machine can also be directly powered by a DC power source.
  • the body positioning device 15 includes an adjustment hand wheel and a positioning shaft.
  • the adjusting hand wheel is fixedly disposed on the right end of the positioning shaft, and the positioning shaft is a screw, and the positioning shaft is disposed on the right upper portion of the body connecting seat 6-2 of the sliding bar assembly 6 in the left-right direction.
  • the rotary adjustment hand wheel drives the positioning shaft to rotate and move to the left, and extends into the corresponding positioning hole on the motor mount 7-1 of the body 7, thereby restricting the body 7 from rotating, positioning the body 7 in the lower position.
  • the horizontal state of the time reduces the height of the rod type oblique cutter and is convenient for transportation.
  • the depth adjustment device 16 includes an adjustment screw 16-1 and a limit post 16-2.
  • the adjusting screw 16-1 is rotated in the up and down direction and is disposed on the right rear portion of the motor mount 7-1 of the body 7.
  • the upper end of the adjusting screw 16-1 is provided with a corresponding hand wheel.
  • the limit post 16-2 is fixedly disposed on the front lower portion of the body connector 6-2 of the slider assembly 6.
  • the adjusting screw 16-1 is rotated by the hand wheel to control the extension length of the lower portion thereof.
  • the body 7 is rotated downward until the lower end of the adjusting screw 16-1 is pressed against the upper side of the limiting post 16-2. Thereby, the movement distance of the fuselage 7 in the up and down direction is restricted, thereby achieving the effect of adjusting the depth of the cutting workpiece.
  • the invention has positive effects: (1)
  • the drawbar type oblique cutting machine of the invention has a simple structure, adopts a DC brushless outer rotor motor, and has a small volume, so that the bidirectional cutting angle adjustment range is large, and the handling time is greatly reduced. Height is conducive to long-distance transportation to reduce costs. After the corresponding battery is configured, it is beneficial to use in different occasions, the portability is enhanced, and the use range is wide.
  • the drawbar type oblique cutting machine of the invention adopts a small-sized DC brushless outer rotor motor, so that the radial cutting depth of the saw blade is greatly improved, and thus can be used for cutting thick workpieces, and the application range is greatly improved.
  • the drawbar type oblique cutting machine of the present invention is provided with a slide bar assembly and a slide bar locking device, so that the cutting of the wider workpiece in the forward and backward directions can be completed in the forward and backward movement, and can also be used for the comparison when locking. Direct cutting of the narrow workpiece up and down.
  • the drawbar type oblique cutting machine of the present invention is provided with an angle ruler and a scale, which greatly improves work efficiency and quality.
  • the drawbar type oblique cutting machine of the present invention is provided with a body positioning device, which can position the body in a horizontal state when lowered, reduce the height of the tie bar type oblique cutting machine, and is convenient for transportation.
  • the depth adjusting device for the drawbar type oblique cutting machine of the present invention can perform the cutting operation requirements of different requirements, and can perform the cutting operation, and can also leave a certain distance without cutting.
  • the driving device of the present invention adopts a DC brushless motor, and the brushless motor outer rotor assembly is replaced by a current one-piece steel motor casing to replace the original aluminum motor casing and the magnetic conductive ring, and is directly used when used.
  • the magnet is fixedly mounted on a steel motor casing, the motor casing is made of low carbon steel, and the steel motor casing has the function of a magnetic coil.
  • the motor performance still meets the requirements, with outstanding substantive features and remarkable Progress has led to a significant drop in the cost of the motor.
  • the brushless motor outer rotor assembly cage of the brushless motor of the present invention is an injection-molded one, which has low production cost and convenient processing.
  • the cage is also convenient when installed in the motor housing, which helps to increase production efficiency and the motor air gap is not affected by the cage.
  • the cage has an upper limit portion, which can accurately position the cage in the motor casing, and the installation is accurate and quick.
  • the brushless motor outer rotor assembly of the brushless motor of the present invention is provided with a cage, and the positioning slots of the cage are open upwards, so that the installation of the permanent magnets is quick and the production and processing efficiency is greatly improved.
  • Each positioning groove of the cage corresponds to the shape of the permanent magnet, so that the permanent magnet is positioned accurately, and the permanent magnet is evenly distributed in the motor casing.
  • the motor shaft hole of the brushless motor outer rotor assembly of the brushless motor of the present invention is formed by press drawing, so that the thickness of the motor case can be made thin, and the shaft of the motor case shaft hole The depth of the orientation is still deep, which not only further reduces the production cost, but also facilitates the interference fit of the drive shaft to be fixed on the motor casing.
  • the coaxiality of the drive shaft and the motor casing is good and the reliability is high.
  • the brushless motor of the brushless motor of the present invention has a heat dissipation hole on the motor casing of the outer rotor assembly, which is advantageous for heat dissipation inside the motor casing and improves stability and reliability of the motor.
  • the brushless motor outer rotor assembly of the brushless motor of the present invention is further provided with a fan blade, which is convenient for quickly discharging the airflow inside the motor casing out of the motor casing and reducing the temperature inside the motor casing. Further improve the stability and reliability of the motor.

Abstract

一种拉杆式斜切割机，包括底座（1）、工作台（2）、支靠（3）、摇臂组件（5）、滑杆组件（6）、机身（7）、驱动装置（8）、控制装置（9）和锯片（13）。工作台（2）的转动台（2-1）转动设置在底座（1）上。转动台（2-1）沿前后向设有切口槽（2-1-1）。支靠（3）固定设置在底座（1）的支撑部（1-1）的上侧后部上。摇臂组件（5）包括摇臂（5-1）。摇臂（5-1）转动设置在转动台（2-1）的后端上，且可向左右两侧转动。机身（7）通过滑杆组件（6）设置在摇臂（5-1）上。驱动装置（8）为直流无刷电机，定子（8-2）固定设置在机身（7）上。定子（8-2）的轴线沿左右向水平设置。无刷电机外转子总成（8-1）由其驱动轴（8-1-4）由右至左穿过定子（8-2）后通过相应的轴承组件转动设置在机身（7）上，且定子（8-2）的相应部分位于电机壳中。锯片（13）可拆卸固定设置在驱动装置（8）的无刷电机外转子总成（8-1）的驱动轴（8-1-4）上。驱动装置（8）和控制装置（9）电连接。该拉杆式斜切割机结构简单，双向切割角度调节范围均较大且体积较小。

Description

拉杆式斜切割机 技术领域
本发明涉及切割机领域，具体涉及一种锯片可沿其径向移动的拉杆式斜切割机。
背景技术
斜切割机作为一种既可以切割金属材料又可以切割非金属材料的切割工具，被广泛应用于各个行业。斜切割机操作方便，切割效率高。切割作业时，手握操作把手下压即可进行切断操作；当待切割工件较宽时，可拉动操作把手使锯片产生径向移动，从而切断工件；当需要沿一定角度切割时，可通过调节摇臂使锯片倾斜产生相应的角度，从而实现一定角度的切割。通常的斜切割机的驱动电机采用的是交流电机，交流电机体积较大，而交流电机的轴线与锯片又呈相互垂直设置，这样使得锯片在向交流电机所在的一侧倾斜时，倾斜幅度受到影响，倾斜角度范围较小。也有的为了提高两侧的倾斜幅度，采用皮带传动方式，该结构体积较大，不便于运输，尤其是产品出口时，运输成本大大增加。也有的采用体积较小的直流外转子电机进行驱动。普通的外转子电机转子部分通常包括机壳、永磁体和导磁圈，其中永磁体又因充磁方向分为N极和S极，以下简称N永磁体和S永磁体。机壳通常是铝压铸件，因为驱动轴需要通过机壳与导磁圈配合达到外转子的要求，所以导磁圈必须固定在机壳中。导磁圈通常是矽钢片冲件，导磁圈里面加工定位永磁体用的凹槽，永磁体固定在导磁圈上的凹槽中，N永磁体和S永磁体交替间隔排列设置。该结构的电机导磁圈通常为单个的零件，导致生产成本大大增加；其次，导磁圈上开有安装永磁体的凹槽，工艺繁琐且加工难度大，进一步增加了生产成本；最后，在将导磁圈固定安装到机壳中时，通常是沿导磁圈等间隔角度设有3至6个在其轴向上贯穿其本体的沉孔，然后通过旋合在机壳上的相应的螺栓将导磁圈固定在机壳上，该安装方式不仅安装麻烦而且对加工精度要求较高，否则导磁体无法放入机壳中。中国专利文献CN202405895U(专利申请号201120567379.6)公开了“一种外转子永磁电机转子结构”，其中记载了：“机壳在内旋转面上开第一凹槽，铁质弧形状的保持架以分段方式嵌入在机壳内，段数可根据永磁体的数目和机壳内径两因素决定，保持架5的底部内表面设有凸台，相邻凸台之间形成的第二凹槽内设置有S永磁体或N永磁体，且在同一个凸台两侧的永磁体的磁极为相反的。”，由此可以看出，保持架安装较为复杂，生产安装效率低下。首先，在同一第一凹槽中设置多段保持架，安装麻烦且对保持架加工精度要求高，不仅要确保各 保持架之间的衔接准确而且要确保各保持架相连之后还能刚好嵌入第一凹槽中；其次，还要保证不在同一第一凹槽中的保持架在机壳的轴向上相互对应，否则会导致永磁体安装不上，安装效率大大降低；最后，各保持架嵌入在机壳内，机壳在内旋转面上开第一凹槽，加工麻烦，同时机壳厚度需相应增加，导致生产成本相应增加。
发明内容
本发明的目的是提供一种结构简单，双向切割角度调节范围均较大的且体积较小的拉杆式斜切割机。
实现本发明目的的基本技术方案是:一种拉杆式斜切割机，其结构特点是：包括底座、工作台、支靠、摇臂、滑杆组件、机身、驱动装置、控制装置和锯片。底座为一体件。底座左右两侧设有向上凸出的支撑部。底座中部前侧上设有角度尺。工作台包括转动台、护板和工作台调节组件。工作台的转动台转动设置在底座上，位于底座左右两侧的支撑部之间且转动台的上表面与支撑部的上表面在同一水平面中。转动台沿前后向设有切口槽。护板有2块，2块护板分别设置在切口槽上部左右两侧上，且位于转动台的上表面下方。工作台上沿前后向设有设有工作台调节组件，工作台调节组件用于扳动使转动台转动及将转动台锁定在底座上。支靠固定设置在底座的支撑部的上侧后部上，支靠前侧上设有刻度尺。摇臂组件包括摇臂、摇臂锁紧装置、滑杆锁紧装置和提手。摇臂转动设置在转动台的后端上，且可向左右两侧转动。摇臂锁紧装置设置在摇臂上，通过摇臂锁紧装置将摇臂呈一定角度锁定在转动台上。滑杆锁紧装置设置在摇臂上侧用于将滑杆组件的滑杆锁紧固定在摇臂上。提手固定设置在摇臂的上侧上。滑杆组件包括滑杆和机身连接座。滑杆有2根，2根滑杆均滑动设置在摇臂组件的摇臂上，且相互平行设置。2根滑杆的后部通过相应的连接件固定连接。机身连接座固定设置在2根滑杆的前端上。机身包括电机固定座、左外罩、右外罩、移动罩和把手。电机固定座转动设置在滑杆组件的机身连接座上。左外罩从左侧固定设置在电机固定座上。电机固定座的左侧后部设有粉尘导向槽。把手固定设置在电机固定座的右侧上。右外罩从右侧固定设置在电机固定座上，且将把手的相应部分罩住。左外罩的后部相应部分和右外罩的后部相应部分之间构成粉尘收集口。粉尘收集口将粉尘导向槽的后部相应部分包住。移动罩固定设置在左外罩上。
驱动装置为直流无刷电机，直流无刷电机包括无刷电机外转子总成和定子。无刷电机外转子总成包括电机壳、保持架、永磁体和驱动轴。
电机壳为铁或低碳钢制成的一体件。电机壳呈开口向上的壳体，电机壳的壁厚为 2毫米至6毫米。驱动轴同轴固定设置在电机壳中，且向上伸出电机壳外。
保持架为注塑一体件。保持架包括定位部。定位部整体呈筒状，其壁厚为永磁体的厚度1/3至1。定位部的外径与电机壳的内径相对应。定位部沿其周向等间隔角度设有数量与永磁体数量相同的定位槽，其形状与永磁体相对应。保持架粘结固定设置在电机壳中。永磁体包括N永磁体和S永磁体，N永磁体和S永磁体依次交错设置在保持架的各定位槽中，且固定设置在电机壳上。定子固定设置在机身的电机固定座上。定子的轴线沿左右向水平设置。无刷电机外转子总成由其驱动轴由右至左穿过定子后通过相应的轴承组件转动设置在机身的电机固定座上，且定子的相应部分位于电机壳中。锯片可拆卸固定设置在驱动装置的无刷电机外转子总成的驱动轴上，且相应部位位于机身的电机固定座与左外罩之间。控制装置固定设置在机身的右外罩上，位于驱动装置的前上方。驱动装置和控制装置电连接。以上述基本技术方案为基础的进一步技术方案是：无刷电机外转子总成的电机壳底部中央设有贯穿其上下的轴孔，轴孔为冲压拉伸而成，轴孔的轴向的深度为4毫米至10毫米。
以上述技术方案为基础的技术方案是：无刷电机外转子总成的电机壳底部还设有贯穿其上下的一组散热孔。散热孔围绕轴孔设置。
以上述相应技术方案为基础的技术方案是：无刷电机外转子总成的保持架还包括上限位部。上限位部的内径与电机壳的内径相对应，上限位部的外径小于电机壳的外径。上限位部设置在定位部的上部外周上。定位部的各定位槽均开口向上且沿定位部径向贯穿其筒壁。
以上述相应技术方案为基础的技术方案是：无刷电机外转子总成的驱动轴与电机壳过盈配合，且驱动轴由其下端穿过电机壳的轴孔。
以上述技术方案为基础的技术方案是：无刷电机外转子总成还包括风叶，风叶为注塑一体件，风叶固定设置在驱动轴的下端上，位于电机壳的下方，其上表面与电机壳的下表面相接触。
以上述相应技术方案为基础的技术方案是：还包括压紧装置。压紧装置有2个，2个压紧装置分别固定设置在支靠的左右两端上，且分别位于底座左右两侧相应的支撑部上。
以上述相应技术方案为基础的技术方案是：还包括压紧装置。压紧装置有2个，2个压紧装置分别固定设置在支靠的左右两端上，且分别位于底座左右两侧相应的支撑部上。
以上述相应技术方案为基础的技术方案是：还包括机身定位装置和深度调节装 置。机身定位装置包括调节手轮和定位轴。调节手轮固定设置在定位轴的右端上，定位轴为螺杆，定位轴沿左右向转动设置在滑杆组件的机身连接座的右侧上部上。深度调节装置包括调节螺杆和限位柱。调节螺杆沿上下向转动设置在机身的电机固定座的右侧后部上。调节螺杆的上端设有相应的手轮。限位柱固定设置在滑杆组件的机身连接座的前侧下部上。
以上述相应技术方案为基础的技术方案是：还包括机身定位装置和深度调节装置。机身定位装置包括调节手轮和定位轴。调节手轮固定设置在定位轴的右端上，定位轴为螺杆，定位轴沿左右向转动设置在滑杆组件的机身连接座的右侧上部上。深度调节装置包括调节螺杆和限位柱。调节螺杆沿上下向转动设置在机身的电机固定座的右侧后部上。调节螺杆的上端设有相应的手轮。限位柱固定设置在滑杆组件的机身连接座的前侧下部上。
以上述相应技术方案为基础的技术方案是：还包括电池。电池可拆卸固定在机身的右外罩上，位于驱动装置的后上方。驱动装置、控制装置和电池相互之间相应的电连接。
以上述相应技术方案为基础的技术方案是：还包括防尘罩。防尘罩从右方固定设置在机身的右外罩上，且将驱动装置、控制装置和电池的相应部分罩住。
附图说明
图1为本发明的拉杆式斜切割机的结构示意图；
图2为图1的右视图；
图3为图1的俯视图；
图4为从图1的右后上方观察时的示意图；
图5为从图1的左前上方观察时的示意图；
图6为从图1的右前上方观察时去掉防尘罩后的示意图；
图7为从图1的右前上方观察时去掉防尘罩和移动罩后的示意图；
图8为从图1的右前上方观察时去掉左外罩、右外罩、移动罩、把手、锯片和防尘罩后的示意图；
图9为从图1的左前上方观察时去掉左外罩、右外罩、移动罩、把手、锯片和防尘罩后的示意图；
图10为从图1的右前上方观察时去掉防尘罩、移动罩和无刷电机外转子总成后的示意图；
图11为本发明的直流无刷电机的无刷电机外转子总成的结构示意图；
图12为从图11的上方向下观察时的示意图；
图13为图11中的A-A剖视图；
图14为图11的俯视图；
图15为从图11的上方向下观察时电机壳的示意图；
图16为从图11的下方向上观察时电机壳的示意图；
图17为图14中的保持架的示意图；
图18为图17的立体示意图；
图19为从图11的上方向下观察时电机壳和保持架的示意图；
图20为从图11的上方向下观察时电机壳、保持架和永磁体的示意图；
图21为从图11的上方向下观察时风叶的示意图；
图22为从图11的下方向上观察时风叶的示意图。
上述附图中的标记如下：
底座1，支撑部1-1，工作台2，转动台2-1，护板2-2，工作台调节组件2-3，支靠3，压紧装置4，摇臂组件5，摇臂5-1，摇臂锁紧装置5-2，滑杆锁紧装置5-3，提手5-4，滑杆组件6，滑杆6-1，机身连接座6-2，机身7，电机固定座7-1，粉尘导向槽7-1-1，左外罩7-2，右外罩7-3，移动罩7-4，把手7-5，粉尘收集口7-6，驱动装置8，无刷电机外转子总成8-1，电机壳8-1-1，轴孔8-1-11，散热孔8-1-12，保持架8-1-2，定位部8-1-21，定位槽8-1-21-1，上限位部8-1-22，永磁体8-1-3，驱动轴8-1-4，风叶8-1-5，定子8-2，控制装置9，电池10，角度尺11，刻度尺12，锯片13，防尘罩14，机身定位装置15，深度调节装置16。
具体实施方式
本发明的方位的描述按照图1所示的方位进行，也即图1所示的上下左右方向即为描述的上下左右方向，图1所朝的一方为前方，背离图1的一方为后方。
(实施例1)
见图1至图10，本发明的拉杆式斜切割机包括底座1、工作台2、支靠3、压紧装置4、摇臂5、滑杆组件6、机身7、驱动装置8、控制装置9、电池10、锯片13、防尘罩14、机身定位装置15和深度调节装置16。
见图1至图10，底座1为一体件。底座1左右两侧设有向上凸出的支撑部1-1。底座1中部前侧上设有角度尺11。
见图1至图10，工作台2包括转动台2-1、护板2-2和工作台调节组件2-3。工作台2的转动台2-1转动设置在底座1上，位于底座1左右两侧的支撑部1-1之间且转动台2-1的上表面与支撑部1-1的上表面在同一水平面中。工作台2的转动台2-1可左右转动调节一定的角度，根据底座1上的角度尺可确定工作台2所转动的角度。转动台2-1沿前后向设有切口槽2-1-1。护板2-2有2块，2块护板2-2分别设置在切口槽2-1-1上部左右两侧上，且位于转动台2-1的上表面下方。护板2-2用于保护转动台2-1。工作台2上沿前后向设有设有工作台调节组件2-3，工作台调节组件2-3用于扳动使转动台2-1转动及将转动台2-1锁定在底座1上。
见图1至图10，支靠3固定设置在底座1的支撑部1-1的上侧后部上，支靠3前侧上设有刻度尺12。压紧装置4有2个，2个压紧装置4分别固定设置在支靠3的左右两端上，且分别位于底座1左右两侧相应的支撑部1-1上，用于将待切割工件固定在底座1上。
见图1至图10，摇臂组件5包括摇臂5-1、摇臂锁紧装置5-2、滑杆锁紧装置5-3和提手5-4。摇臂5-1转动设置在转动台2-1的后端上，且可向左右两侧转动。摇臂锁紧装置5-2设置在摇臂5-1上，通过摇臂锁紧装置5-2将摇臂5-1呈一定角度锁定在转动台2-1上。滑杆锁紧装置5-3设置在摇臂上侧用于将滑杆组件6的滑杆6-1锁紧固定在摇臂5-1上。提手5-4固定设置在摇臂5-1的上侧上，用于移动搬运本拉杆式斜切割机用。摇臂组件5的下部前侧还设有用于显示其转动角度的角度尺(说明书附图中未画出)。
见图1至图10，滑杆组件6包括滑杆6-1和机身连接座6-2。滑杆6-1有2根，2根滑杆6-1均滑动设置在摇臂组件5的摇臂5-1上，且相互平行设置。2根滑杆6-1的后部通过相应的连接件固定连接。机身连接座6-2固定设置在2根滑杆6-1的前端上。
见图1至图10，机身7包括电机固定座7-1、左外罩7-2、右外罩7-3、移动罩7-4和把手7-5。电机固定座7-1转动设置在滑杆组件6的机身连接座6-2上。左外罩7-2从左侧固定设置在电机固定座7-1上。电机固定座7-1的左侧后部设有粉尘导向槽7-1-1。把手7-5固定设置在电机固定座7-1的右侧上。右外罩7-3从右侧固定设置在电机固定座7-1上，且将把手7-5的相应部分罩住。左外罩7-2的后部相应部分和右外罩7-3的后部相应部分之间构成粉尘收集口7-6。粉尘收集口7-6将粉尘导向槽7-1-1的后部相应部分包住。移动罩7-4固定设置在左外罩上，用于搬运拉杆式斜切割机时保护相应的锯片不被碰坏和搬运人员的安全。
见图6至图10，驱动装置8为直流无刷电机，直流无刷电机包括无刷电机外转子总成8-1和定子8-2。
见图11至图13，无刷电机外转子总成包括电机壳8-1-1、保持架8-1-2、永磁体8-1-3、驱动轴8-1-4和风叶8-1-5。
见图12、图13、图15和图16，电机壳8-1-1为铁或低碳钢制成的一体件，本实施例的电机壳8-1-1采用20钢制成。电机壳8-1-1呈开口向上的壳体，电机壳8-1-1的壁厚为2毫米至6毫米(本实施例为3毫米)。电机壳8-1-1底部中央设有贯穿其上下的轴孔8-1-11，轴孔8-1-11为冲压拉伸而成，轴孔8-1-11的轴向的深度要为4毫米至8毫米(本实施例为6毫米)。电机壳8-1-1底部设有贯穿其上下的一组散热孔8-1-12。散热孔8-1-12围绕轴孔11设置。
见图11至图14和图17至图20，保持架8-1-2为注塑一体件。保持架8-1-2包括定位部8-1-21和上限位部8-1-22。定位部8-1-21整体呈筒状，其壁厚为永磁体8-1-3的厚度1/3至1(本实施例的定位部8-1-21的壁厚为永磁体8-1-3的厚度的1/2)。定位部8-1-21的外径与电机壳8-1-1的内径相对应。定位部8-1-21沿其周向等间隔角度设有数量与永磁体8-1-3数量相同的定位槽8-1-21-1；各定位槽8-1-21-1均开口向上且沿定位部8-1-21径向贯穿其筒壁，其形状与永磁体8-1-3相对应。上限位部8-1-22的内径与电机壳8-1-1的内径相对应，上限位部8-1-22的外径小于电机壳8-1-1的外径。上限位部8-1-22设置在定位部8-1-21的上部外周上。保持架8-1-2粘结固定设置在电机壳8-1-1中，且由其上限位部8-1-22对其在电机壳8-1-1中的上下位置进行定位。
见图12至图14和图20，永磁体8-1-3包括N永磁体和S永磁体，N永磁体和S永磁体依次交错设置在保持架8-1-2的各定位槽8-1-21-1中，且粘结固定在电机壳8-1-1上。永磁体8-1-3的上表面与电机壳8-1-1的上表面相平。
见图11至图14，驱动轴8-1-4同轴固定设置在电机壳8-1-1中，且向上伸出电机壳外。驱动轴8-1-4与电机壳8-1-1过盈配合，且驱动轴8-1-4由其下端穿过电机壳8-1-1的轴孔8-1-11。
见图11至图14、图21和图22，风叶8-1-5为注塑一体件，风叶8-1-5固定设置在驱动轴8-1-4的下端上，位于电机壳8-1-1的下方，其上表面与电机壳8-1-1的下表面相接触，风叶8-1-5旋转时可将电机壳8-1-1内部的气流通过散热孔8-1-12抽出来。定子8-2固定设置在机身7的电机固定座7-1上。定子8-2的轴线沿左右向水平设置。无刷电机外转子总成8-1由其驱动轴8-1-4由右至左穿过定子8-2后通过 相应的轴承组件转动设置在机身7的电机固定座7-1上，且定子8-2的相应部分位于电机壳8-1-1中。见图6、图7和图10，控制装置9固定设置在机身7的右外罩7-3上，位于驱动装置8的前上方。电池10可拆卸固定在机身7的右外罩7-3上，位于驱动装置8的后上方。驱动装置8、控制装置9和电池10相互之间相应的电连接。锯片13可拆卸固定设置在驱动装置8的无刷电机外转子总成8-1的驱动轴8-1-4上，且相应部位位于机身7的电机固定座7-1与左外罩7-2之间。防尘罩14从右方固定设置在机身7的右外罩7-3上，且将驱动装置8、控制装置9和电池10的相应部分罩住。本拉杆式斜切割机还可采用直流电源直接供电。
见图2、图4和图8，机身定位装置15包括调节手轮和定位轴。调节手轮固定设置在定位轴的右端上，定位轴为螺杆，定位轴沿左右向转动设置在滑杆组件6的机身连接座6-2的右侧上部上。使用时旋转调节手轮带动定位轴转动并向左运动，并伸入机身7的电机固定座7-1上相应的定位孔中，从而限制机身7不能转动，将机身7定位在放下时的水平状态，降低拉杆式斜切割机的高度，便于运输。
见图1、图2和图8，深度调节装置16包括调节螺杆16-1和限位柱16-2。调节螺杆16-1沿上下向转动设置在机身7的电机固定座7-1的右侧后部上。调节螺杆16-1的上端设有相应的手轮。限位柱16-2固定设置在滑杆组件6的机身连接座6-2的前侧下部上。使用时通过手轮转动调节螺杆16-1来控制其下部的伸出长度，当切割时机身7向下转动运动，直至调节螺杆16-1的下端顶住限位柱16-2的上侧，从而限制机身7在上下向上的运动距离，从而达到调节切割工件的深度的作用。
以上实施例仅供说明本发明之用，而非对本发明的限制，有关技术领域的技术人员在不脱离本发明的精神和范围的情况下，还可以作出各种变换和变化，具体应用过程中还可以根据上述实施例的启发进行相应的改造，因此所有等同的技术方案均应该归入本发明的专利保护范围之内。
工业应用性
本发明具有积极的效果：(1)本发明的拉杆式斜切割机结构简单，采用直流无刷外转子电机，体积较小使得双向切割角度调节范围均较大，而且大大减小了搬运时的高度，有利于长途运输降低成本。在配置相应的电池后，有利于在不同场合使用，便携性增强，使用范围较广。
(2)本发明的拉杆式斜切割机采用体积较小的直流无刷外转子电机，使得锯片径向切割深度大大提高，因而能用于较厚工件的切割，应用范围大大提高。
(3)本发明的拉杆式斜切割机设有滑杆组件和滑杆锁紧装置，因而既可以在前后向运动时完成对较宽工件前后向的切断，也可在锁定时用于对较窄工件上下向的直接切断。
(4)本发明的拉杆式斜切割机设有角度尺和刻度尺，大大提高了工作效率和质量。
(5)本发明的拉杆式斜切割机设有机身定位装置，能将机身定位在放下时的水平状态，降低拉杆式斜切割机的高度，便于运输。
(6)本发明的拉杆式斜切割机深度调节装置，能进行不同需求的切割作业要求，可以进行切断操作，也可留有一定距离，不切断。
(7)本发明的驱动装置采用直流无刷电机，其无刷电机外转子总成由现在的一个部件钢制电机壳替代原来的铝制电机壳和导磁圈，使用时直接将永磁体固定设置在钢制电机壳上，电机壳采用低碳钢制成，钢制电机壳兼具导磁圈的功能，其电机性能仍然符合要求，具有突出的实质性特点和显著的进步，使得电机的成本大幅下降。
(8)本发明的直流无刷电机的无刷电机外转子总成保持架为注塑一体件，生产成本低，加工方便。保持架在安装到电机壳中时也很便捷，有利于提高生产效率且电机气隙不受保持架的影响。保持架设有上限位部，能准确将保持架定位在电机壳中，安装准确快捷。
(9)本发明的直流无刷电机的无刷电机外转子总成设有保持架，保持架的各定位槽开口向上，使得永磁体的安装快捷、极大的提高了生产加工效率。保持架的各定位槽与永磁体的形状相对应，使得永磁体定位准确，永磁体在电机壳内均匀分布。
(10)本发明的直流无刷电机的无刷电机外转子总成的电机壳轴孔为冲压拉伸而成，因而电机壳的厚度可以做的较薄，电机壳轴孔的轴向的深度仍保持较深，不仅能进一步降低生产成本，而且有利于驱动轴过盈配合固定在电机壳上，驱动轴和电机壳的同轴性较好、可靠性较高。
(11)本发明的直流无刷电机的无刷电机外转子总成的电机壳上设有散热孔，有利于电机壳内部的热量散出，提高电机使用的稳定性和可靠性。
(12)本发明的直流无刷电机的无刷电机外转子总成还设有风叶，工作时有利于将电机壳内部的气流快速排出电机壳外，降低电机壳内部的温度，进一步提高电机使用的稳定性和可靠性。

Claims (10)

  1. 一种拉杆式斜切割机，其特征在于：包括底座(1)、工作台(2)、支靠(3)、摇臂(5)、滑杆组件(6)、机身(7)、驱动装置(8)、控制装置(9)和锯片(13)；底座(1)为一体件；底座(1)左右两侧设有向上凸出的支撑部(1-1)；底座(1)中部前侧上设有角度尺(11)；工作台(2)包括转动台(2-1)、护板(2-2)和工作台调节组件(2-3)；工作台(2)的转动台(2-1)转动设置在底座(1)上，位于底座(1)左右两侧的支撑部(1-1)之间且转动台(2-1)的上表面与支撑部(1-1)的上表面在同一水平面中；转动台(2-1)沿前后向设有切口槽(2-1-1)；护板(2-2)有2块，2块护板(2-2)分别设置在切口槽(2-1-1)上部左右两侧上，且位于转动台(2-1)的上表面下方；工作台(2)上沿前后向设有设有工作台调节组件(2-3)，工作台调节组件(2-3)用于扳动使转动台(2-1)转动及将转动台(2-1)锁定在底座(1)上；支靠(3)固定设置在底座(1)的支撑部(1-1)的上侧后部上，支靠(3)前侧上设有刻度尺(12)；摇臂组件(5)包括摇臂(5-1)、摇臂锁紧装置(5-2)、滑杆锁紧装置(5-3)和提手(5-4)；摇臂(5-1)转动设置在转动台(2-1)的后端上，且可向左右两侧转动；摇臂锁紧装置(5-2)设置在摇臂(5-1)上，通过摇臂锁紧装置(5-2)将摇臂(5-1)呈一定角度锁定在转动台(2-1)上；滑杆锁紧装置(5-3)设置在摇臂上侧用于将滑杆组件(6)的滑杆(6-1)锁紧固定在摇臂(5-1)上；提手(5-4)固定设置在摇臂(5-1)的上侧上；滑杆组件(6)包括滑杆(6-1)和机身连接座(6-2)；滑杆(6-1)有2根，2根滑杆(6-1)均滑动设置在摇臂组件(5)的摇臂(5-1)上，且相互平行设置；2根滑杆(6-1)的后部通过相应的连接件固定连接；机身连接座(6-2)固定设置在2根滑杆(6-1)的前端上；机身(7)包括电机固定座(7-1)、左外罩(7-2)、右外罩(7-3)、移动罩(7-4)和把手(7-5)；电机固定座(7-1)转动设置在滑杆组件(6)的机身连接座(6-2)上；左外罩(7-2)从左侧固定设置在电机固定座(7-1)上；电机固定座(7-1)的左侧后部设有粉尘导向槽(7-1-1)；把手(7-5)固定设置在电机固定座(7-1)的右侧上；右外罩(7-3)从右侧固定设置在电机固定座(7-1)上，且将把手(7-5)的相应部分罩住；左外罩(7-2)的后部相应部分和右外罩(7-3)的后部相应部分之间构成粉尘收集口(7-6)；粉尘收集口(7-6)将粉尘导向槽(7-1-1)的后部相应部分包住；移动罩(7-4)固定设置在左外罩上；
    驱动装置(8)为直流无刷电机，直流无刷电机包括无刷电机外转子总成(8-1) 和定子(8-2)；无刷电机外转子总成(8-1)包括电机壳(8-1-1)、保持架(8-1-2)、永磁体(8-1-3)和驱动轴(8-1-4)；
    电机壳(8-1-1)为铁或低碳钢制成的一体件；电机壳(8-1-1)呈开口向上的壳体，电机壳(8-1-1)的壁厚为2毫米至6毫米；驱动轴(8-1-4)同轴固定设置在电机壳(8-1-1)中，且向上伸出电机壳(8-1-1)外；
    保持架(8-1-2)为注塑一体件；保持架(8-1-2)包括定位部(8-1-21)；定位部(8-1-21)整体呈筒状，其壁厚为永磁体(8-1-3)的厚度1/3至1；定位部(8-1-21)的外径与电机壳(8-1-1)的内径相对应；定位部(8-1-21)沿其周向等间隔角度设有数量与永磁体(8-1-3)数量相同的定位槽(8-1-21-1)，其形状与永磁体(8-1-3)相对应；保持架(8-1-2)粘结固定设置在电机壳(8-1-1)中；永磁体(8-1-3)包括N永磁体和S永磁体，N永磁体和S永磁体依次交错设置在保持架(8-1-2)的各定位槽(8-1-21-1)中，且固定设置在电机壳(8-1-1)上；定子(8-2)固定设置在机身(7)的电机固定座(7-1)上；定子(8-2)的轴线沿左右向水平设置；无刷电机外转子总成(8-1)由其驱动轴(8-1-4)由右至左穿过定子(8-2)后通过相应的轴承组件转动设置在机身(7)的电机固定座(7-1)上，且定子(8-2)的相应部分位于电机壳(8-1-1)中；锯片(13)可拆卸固定设置在驱动装置(8)的无刷电机外转子总成(8-1)的驱动轴(8-1-4)上，且相应部位位于机身(7)的电机固定座(7-1)与左外罩(7-2)之间；控制装置(9)固定设置在机身(7)的右外罩(7-3)上，位于驱动装置(8)的前上方；驱动装置(8)和控制装置(9)电连接。
  2. 根据权利要求1所述的拉杆式斜切割机，其特征在于：无刷电机外转子总成(8-1)的电机壳(8-1-1)底部中央设有贯穿其上下的轴孔(8-1-11)，轴孔(8-1-11)为冲压拉伸而成，轴孔(8-1-11)的轴向的深度为4毫米至10毫米。
  3. 根据权利要求2所述的拉杆式斜切割机，其特征在于：无刷电机外转子总成(8-1)的电机壳(8-1-1)底部还设有贯穿其上下的一组散热孔(8-1-12)；散热孔(8-1-12)围绕轴孔(8-1-11)设置。
  4. 根据权利要求2所述的拉杆式斜切割机，其特征在于：无刷电机外转子总成(8-1)的保持架(8-1-2)还包括上限位部(8-1-22)；上限位部(8-1-22)的内径与电机壳(8-1-1)的内径相对应，上限位部(8-1-22)的外径小于电机壳(8-1-1)的外径；上限位部(8-1-22)设置在定位部(8-1-21)的上部外周上；定位部(8-1-21)的各定位槽(8-1-21-1)均开口向上且沿定位部(8-1-21)径 向贯穿其筒壁。
  5. 根据权利要求3或4所述的拉杆式斜切割机，其特征在于：无刷电机外转子总成(8-1)的驱动轴(8-1-4)与电机壳(8-1-1)过盈配合，且驱动轴(8-1-4)由其下端穿过电机壳(8-1-1)的轴孔(8-1-11)。
  6. 根据权利要求5所述的拉杆式斜切割机，其特征在于：无刷电机外转子总成(8-1)还包括风叶(8-1-5)，风叶(8-1-5)为注塑一体件，风叶(8-1-5)固定设置在驱动轴(8-1-4)的下端上，位于电机壳(8-1-1)的下方，其上表面与电机壳(8-1-1)的下表面相接触。
  7. 根据权利要求1至4至一所述的拉杆式斜切割机，其特征在于：还包括压紧装置(4)；压紧装置(4)有2个，2个压紧装置(4)分别固定设置在支靠(3)的左右两端上，且分别位于底座(1)左右两侧相应的支撑部(1-1)上。
  8. 根据权利要求6所述的拉杆式斜切割机，其特征在于：还包括压紧装置(4)；压紧装置(4)有2个，2个压紧装置(4)分别固定设置在支靠(3)的左右两端上，且分别位于底座(1)左右两侧相应的支撑部(1-1)上。
  9. 根据权利要求1至4至一所述的拉杆式斜切割机，其特征在于：还包括机身定位装置(15)和深度调节装置(16)；机身定位装置(15)包括调节手轮和定位轴；调节手轮固定设置在定位轴的右端上，定位轴为螺杆，定位轴沿左右向转动设置在滑杆组件(6)的机身连接座(6-2)的右侧上部上；深度调节装置(16)包括调节螺杆(16-1)和限位柱(16-2)；调节螺杆(16-1)沿上下向转动设置在机身(7)的电机固定座(7-1)的右侧后部上；调节螺杆(16-1)的上端设有相应的手轮；限位柱(16-2)固定设置在滑杆组件(6)的机身连接座(6-2)的前侧下部上。
  10. 根据权利要求6所述的拉杆式斜切割机，其特征在于：还包括机身定位装置(15)和深度调节装置(16)；机身定位装置(15)包括调节手轮和定位轴；调节手轮固定设置在定位轴的右端上，定位轴为螺杆，定位轴沿左右向转动设置在滑杆组件(6)的机身连接座(6-2)的右侧上部上；深度调节装置(16)包括调节螺杆(16-1)和限位柱(16-2)；调节螺杆(16-1)沿上下向转动设置在机身(7)的电机固定座(7-1)的右侧后部上；调节螺杆(16-1)的上端设有相应的手轮；限位柱(16-2)固定设置在滑杆组件(6)的机身连接座(6-2)的前侧下部上。
PCT/CN2015/085704 2014-08-06 2015-07-31 拉杆式斜切割机 WO2016019829A1 (zh)

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CN113972798A (zh) * 2021-11-19 2022-01-25 珠海格力智能装备有限公司 一种转子定位装置及转子充磁设备
CN114131488A (zh) * 2021-11-10 2022-03-04 杭州宏立机械制造有限公司 一种拉杆切槽机
CN114406756A (zh) * 2022-03-07 2022-04-29 深圳市欧尚珠宝有限公司 一种用于珠宝首饰加工的小型便携式贵金属切削设备
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CN108858450A (zh) * 2018-06-21 2018-11-23 江苏鸿华特种装备有限公司 一种复合面料截断切割的纠偏装置
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CN113972798A (zh) * 2021-11-19 2022-01-25 珠海格力智能装备有限公司 一种转子定位装置及转子充磁设备
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CN114536441B (zh) * 2022-02-11 2023-10-27 湖南炬神电子有限公司 一种充电器、适配器电源开壳装置
CN114406756A (zh) * 2022-03-07 2022-04-29 深圳市欧尚珠宝有限公司 一种用于珠宝首饰加工的小型便携式贵金属切削设备

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