CN110900284A - Automatic feeding mechanism and method for micro machine tool - Google Patents
Automatic feeding mechanism and method for micro machine tool Download PDFInfo
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- CN110900284A CN110900284A CN201910883866.4A CN201910883866A CN110900284A CN 110900284 A CN110900284 A CN 110900284A CN 201910883866 A CN201910883866 A CN 201910883866A CN 110900284 A CN110900284 A CN 110900284A
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- 238000003754 machining Methods 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 abstract description 2
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- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/46—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously with variable speed ratio
- B23Q5/48—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously with variable speed ratio by use of toothed gears
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Abstract
The invention relates to the field of machine tool machining and cutting, in particular to an automatic feeding mechanism and method for machining of a micro machine tool. The invention aims to solve the problem that no effective and practical feeding mechanism exists in the existing market, and provides an automatic feeding mechanism and method for a micro machine tool. The automatic transition device comprises a transition plate fixed on a micro machine tool and a driven screw rod which is in threaded connection with the micro machine tool and transversely penetrates through the transition plate, wherein a driven gear is arranged at the end part of the driven screw rod, a fixed hinge shaft and an upper hinge shaft are arranged on the transition plate, the transition plate is movably connected with a swing plate, the swing plate is provided with a fixed hinge shaft hole and a waist groove hole, a lower hinge shaft is arranged on the other side of the swing plate and the waist groove hole, the automatic transition device also comprises a speed reducing motor and a lower hinge shaft which are arranged on the swing plate, a driving gear which is on the same plane with the driven gear is arranged at the output shaft end of the speed reducing motor, a fan-shaped stirring block is movably connected with the lower hinge shaft and comprises a lower hinge shaft hole and a fan-shaped groove, and the driving gear is meshed with.
Description
The technical field is as follows:
the invention relates to the field of machine tool machining and cutting, in particular to an automatic feeding mechanism and method for machining of a micro machine tool.
Background art:
the machine tool is generally suitable for part machining. However, when the traditional machine tool is used for processing parts, the precision is low, the efficiency is low, and the automatic feeding function is not available. The large machine tool can automatically feed, but is high in price, complex in structure, various in parts, complex in operation, heavy in size and impractical for common household use. But the small machine tool does not have a good automatic feeding mechanism at present; the motor of the automatic feeding mechanism of the existing micro machine tool is huge, so that the micro machine tool looks big and small when in use, is not attractive, has high cost, is usually operated by using smaller feeding amount, and has extremely low motor efficiency and large power consumption. The constant torque output characteristic becomes worse, resulting in smaller driving torque. In addition, the dc motor has a constant torque output characteristic, and only a driving motor with a large margin power can be selected in order to achieve sufficient torque output with a small feed amount. And the engagement and disengagement transition of the feed mechanism is not smooth.
The invention content is as follows:
the invention aims to solve the problems that the existing miniature machine tool on the market is not practical, no effective and practical feeding mechanism exists in the field of miniature machine tools, and no practical and balanced adjusting function and stability after adjustment exist, so that the automatic feeding mechanism and the method for the miniature machine tool are invented.
In order to solve the technical problem, the automatic feeding mechanism of the micro machine tool comprises a transition plate fixed on the micro machine tool and a driven screw rod which is in threaded connection with the micro machine tool and transversely passes through the transition plate, the end part of the driven screw rod is provided with a driven gear which is fixedly connected, the transition plate is provided with a fixed hinge shaft and an upper hinge shaft, the transition plate is movably connected with a swinging plate, the swinging plate is provided with a fixed hinge shaft hole and a waist groove hole, the fixed hinge shaft is movably connected in the fixed hinge shaft hole, the upper hinge shaft is movably connected in the waist groove hole, the other side of the swinging plate, which is opposite to the waist groove hole, is provided with a lower hinge shaft, a speed reducing motor and a lower hinge shaft which are fixed on the swinging plate, the output shaft end of the speed reducing motor is provided with a driving gear which is positioned on the same plane with the driven gear, the lower hinge shaft is movably connected with a sector shifting block, and the sector, the lower hinge shaft is movably connected in the lower hinge shaft hole, the sector groove is in sliding fit with the upper hinge shaft, and the engagement or disengagement of the driving gear and the driven gear is realized by driving the swinging plate through the sector groove by the sector plate.
In order to solve the technical problem, the automatic feeding mechanism of the micro machine tool comprises a transition plate fixed on the micro machine tool and a driven screw rod which is in threaded connection with the micro machine tool and transversely penetrates through the transition plate, a driven gear which is fixedly connected with the end part of the driven screw rod is arranged on the end part of the driven screw rod, a fixed hinge shaft and an upper hinge shaft are arranged on the transition plate, a swinging plate is movably connected with the transition plate and is provided with a fixed hinge shaft hole and a waist groove hole, the fixed hinge shaft is movably connected in the fixed hinge shaft hole, the upper hinge shaft is movably connected in the waist groove hole, a lower hinge shaft is arranged on the other side of the swinging plate, which is opposite to the waist groove hole, a speed reducing motor and a lower hinge shaft are fixed on the swinging plate, a driving gear which is positioned on the same plane with the driven gear is arranged at the output shaft end of the speed reducing motor, the lower hinge shaft is movably connected with a sector shifting block, and the sector shifting block comprises, the lower hinge shaft is movably connected in the lower hinge shaft hole, the first sector groove and the second sector groove are communicated into a whole, the upper hinge shaft is in sliding fit in the first sector groove and the second sector groove, and the driving gear is meshed with or separated from the driven gear by the sector plate through the first sector groove and the second sector groove to drive the swing plate. The automatic feeding mechanism of the micro machine tool comprises a screw hole longitudinally penetrating through a first sector groove of a sector plate from top to bottom, wherein the axis of the screw hole is positioned at a position close to the diameter of the end part of the first sector groove; the widths of the first fan-shaped groove and the second fan-shaped groove are the same, the arc diameters are different, and the first fan-shaped groove and the second fan-shaped groove are intersected at different angles to form a whole. As a preferred embodiment of the automatic feeding mechanism of the micro machine tool, the waist slot hole is a longitudinal vertical angle; the width of the fan-shaped groove is just matched with the diameter of the upper hinge shaft.
As a preferred embodiment of the automatic feeding mechanism of the micro machine tool of the present invention, the fan-shaped plate is provided at one side, and in order to solve the above technical problems, the method of the automatic feeding mechanism of the micro machine tool of the present invention comprises seven main components of a transition plate, a driven screw rod, a swing plate, a fan-shaped plate, a reduction motor, a driving gear and a driven gear, and comprises the following six steps:
step one, fixedly connecting a transition plate with a micro machine tool, connecting a driven screw rod with the machine tool through threads, and penetrating the driven screw rod through the transition plate;
secondly, a driven screw rod penetrates through the end part of the transition plate and is provided with a driven gear;
step three, the step includes three manufacturing processes:
(step 1): checking and confirming whether the driven gear in the second step is on the surface of the transition plate;
(step 2): selecting two opposite positions on the surface of the transition plate;
(step 3): setting two parts of a fixed hinge shaft and an upper hinge shaft at the selected position in the step 2;
step four, adding a swing plate which is movably connected, wherein the swing plate comprises the following four workpiece procedures,
(step 1): a fixed hinge shaft hole matched with the diameter of the fixed hinge shaft is arranged on the surface of the main body of the swinging plate,
(step 2): the swinging plate is sleeved outside the fixed hinge shaft through the hole of the fixed hinge shaft,
(step 3): after the step 2 is finished, a waist-shaped slot is arranged at the position where the surface of the swinging plate is crossed with the axis of the upper hinge shaft, the upper hinge shaft is movably connected in the waist-shaped slot,
(charging 4): a lower hinge shaft is arranged at a position horizontally corresponding to the waist-shaped slotted hole;
step five, the step comprises the following four working procedures:
(step 1): the speed reducing motor is fixedly connected with the swinging plate,
(step 2): the output shaft end of the speed reducing motor is provided with a driving gear,
(step 3): the driving gear and the driven gear are positioned on the same plane, and the driving gear is adjacent to the driven gear;
(step 4): checking and confirming that the distance between the driving gear and the driven gear is smaller than the length of the waist slot hole, if so, entering a sixth step;
step six, also include a sector plate, the preparation of this sector plate includes four processes:
(step 1): the surface of the main body of the sector plate is provided with a lower hinge shaft hole matched with the diameter of the lower hinge shaft, the sector plate is sleeved on the swinging plate through the lower hinge shaft hole,
(step 2): a sector groove is arranged at the intersection position of the sector plate and the axis of the upper hinge shaft, the sector groove is in sliding fit with the upper hinge shaft,
(step 3): the manufacturing standard of the fan-shaped groove is a strip-shaped groove hole which is integrally arc-shaped and has two rounded ends;
(step 4): the distances between the starting and stopping points of the two ends of the fan-shaped groove and the lower hinge shaft are kept unequal.
In order to solve the technical problem, the invention discloses a method for an automatic feeding mechanism of a micro machine tool, which comprises seven main components of a transition plate, a driven screw rod, a swinging plate, a sector plate, a speed reducing motor, a driving gear and a driven gear, and comprises the following six steps:
step one, fixedly connecting a transition plate with a micro machine tool, connecting a driven screw rod with the machine tool through threads, and penetrating the driven screw rod through the transition plate;
secondly, a driven screw rod penetrates through the end part of the transition plate and is provided with a driven gear;
step three, the step includes three manufacturing processes:
(step 1): checking and confirming whether the driven gear in the second step is on the surface of the transition plate;
(step 2): selecting two opposite positions on the surface of the transition plate;
(step 3): setting two parts of a fixed hinge shaft and an upper hinge shaft at the selected position in the step 2;
step four, adding a swing plate which is movably connected, wherein the swing plate comprises the following four workpiece procedures,
(step 1): a fixed hinge shaft hole matched with the diameter of the fixed hinge shaft is arranged on the surface of the main body of the swinging plate,
(step 2): the swinging plate is sleeved outside the fixed hinge shaft through the hole of the fixed hinge shaft,
(step 3): after the step 2 is finished, a waist-shaped slot is arranged at the position where the surface of the swinging plate is crossed with the axis of the upper hinge shaft, the upper hinge shaft is movably connected in the waist-shaped slot,
(charging 4): a lower hinge shaft is arranged at a position horizontally corresponding to the waist-shaped slotted hole;
step five, the step comprises the following four working procedures:
(step 1): the speed reducing motor is fixedly connected with the swinging plate,
(step 2): the output shaft end of the speed reducing motor is provided with a driving gear,
(step 3): the driving gear and the driven gear are positioned on the same plane, and the driving gear is adjacent to the driven gear;
(step 4): checking and confirming that the distance between the driving gear and the driven gear is smaller than the length of the waist slot hole, if so, entering a sixth step;
step six, also include a sector plate, the preparation of this sector plate includes six processes:
(step 1): the surface of the main body of the sector plate is provided with a lower hinge shaft hole matched with the diameter of the lower hinge shaft, the sector plate is sleeved on the swinging plate through the lower hinge shaft hole,
(step 2): the intersecting position of the fan-shaped plate and the axis of the upper hinge shaft is provided with a first fan-shaped groove which is in sliding fit with the upper hinge shaft, the other end of the first fan-shaped groove is provided with a second fan-shaped groove which has a radius larger than that of the first fan-shaped groove, but has the same groove body width and intersects with the first fan-shaped groove at different angles,
(step 3): the first fan-shaped groove and the second fan-shaped groove are communicated to form a whole with natural and complete transition;
(step 4): a screw hole with the axis deviating from the circle center of the upper hinge shaft is arranged above the first sector groove of the sector plate;
(step 5): a wave bead screw connected with a thread is arranged in the screw hole;
(step 6): whether the position of the wave bead screw reaches the standard is checked and confirmed, and the qualified standard is as follows: when the upper hinge shaft is at the end of the first sector groove, it is locked at the ball screw.
As a preferred embodiment of the method for automatically feeding the mechanism of the micro machine tool, the swinging plate can swing up and down around the fixed hinge shaft as an axis and with the waist-shaped groove hole as a movable interval. As a preferred embodiment of the method for the automatic feeding mechanism of the micro machine tool, the manufacturing standard of the width of the fan-shaped groove is as follows: the diameter of the upper hinge shaft is just matched, the upper hinge shaft can be just placed in the upper hinge shaft, and the upper hinge shaft can slide back and forth. As a preferred embodiment of the method for the automatic feeding mechanism of the micro machine tool, the sector plate can swing back and forth around the lower hinge shaft (9) after being checked and confirmed, and a toggle handle fixedly connected is arranged on one side of the sector plate and used for facilitating toggle adjustment.
Advantageous effects
1. The invention adopts the combination of the transition plate, the driven screw rod, the swinging plate, the sector plate, the speed reducing motor, the driving gear and the driven gear, and uses the speed reducing motor for driving, so that the output characteristic of the motor is changed into constant power, and the larger the speed reducing ratio is, the larger the output torque is. During low-speed driving, the required motor power is ten times smaller than that of constant-torque driving.
2. Due to the irreversibility of the large reduction ratio, the reducer can stop the driven shaft when the motor stops.
3. The three-shaft three-plate combined structure has the advantages that each part is clear and dedicated, and the three-shaft three-plate combined structure is simple and compact, and clear and light in operation.
4. The speed reducing motor can be driven by direct current speed regulation, and can also be driven by a permanent magnet synchronous alternating current motor which can be directly driven by an input power supply of a host, so that a control circuit of variable voltage and variable current is omitted, and the manufacturing cost is further reduced.
5. The transition plate, the driven screw rod and the driven gear support the swinging plate and the sector plate to be connected with a machine tool;
6. the swinging plate is connected with the speed reducing motor and the driving gear so as to drive the speed reducing motor and the driving gear;
7. and the fan-shaped shifting block is connected with the swinging plate and the transition plate, and controls the meshing and the disengagement between the driving gear and the driven gear through the interaction between the arc groove and the upper hinge shaft.
8. The arc groove of the sector plate has the advantages that the lower hinge shaft hole is used as an axis to control the engagement and the separation of the driving gear and the driven gear, the two end points of the arc groove have different radiuses, and the arc groove can be self-locked with the upper hinge shaft when in the engagement position.
9. The meshing and the opening of the driving gear and the driven gear are stable under the action of the fan-shaped groove, and the gear is slowly transited without being damaged.
10. The combination of the first fan-shaped groove and the second fan-shaped groove ensures that the adjustment is more stable and cannot slip; and the use of the wave ball screw further increases the non-slip effect.
Drawings
FIG. 1 is an overall front assembly view of embodiment 1 of the present invention;
FIG. 2 is an overall side assembly schematic view of embodiment 2 of the present invention;
FIG. 3 is a schematic view of the entire engagement state of the automatic feed mechanism at the portion "A" in FIG. 2;
FIG. 4 is an overall view of the portion "A" of FIG. 2 showing the automatic feed mechanism disengaged;
FIG. 5 is a schematic plan view of the "transition plate" assembly of the present invention;
FIG. 6 is a schematic plan view of the "wobble plate" assembly of the present invention;
FIG. 7 is a schematic plan view of the "sector plate" of the assembly of the present invention;
FIG. 8 is an overall plan view assembly diagram of embodiment 2 of the present invention;
FIG. 9 is a schematic view of the entire engagement state of the automatic feed mechanism of the portion "B" in FIG. 8;
FIG. 10 is an overall view of the automatic feed mechanism of FIG. 8 with the portion "B" disengaged;
FIG. 11 is an overall perspective view of embodiment 3;
FIG. 12 is a front elevational view of FIG. 11;
FIG. 13 is an exploded view of the interior section of FIG. 11;
in the figure: 1. the device comprises a transition plate, 2 driven screw rods, 3 driven gears, 4 fixed hinge shafts, 5 upper hinge shafts, 6 oscillating plates, 7 reducing motors, 8 driving gears, 9 lower hinge shafts, 10 sector plates, 11 sector grooves, 12 toggle handles, 14 fixed hinge shaft holes, 15 waist groove holes, 16 lower hinge shaft holes, 17 screw holes, 18 ball screws, 19 first sector grooves and 20 second sector grooves
Detailed Description
The invention is further illustrated by the following figures and examples. The drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the description of the present invention.
Example 1:
the embodiment is a miniature automatic feeding mechanism of an X-axis of a workbench of a miniature drilling and milling machine, which uses a single-speed alternating-current permanent magnet synchronous motor to input power of 28W, voltage of 220V and output shaft rotating speed of 10 rpm, wherein the thread pitch of an X-axis screw rod of the workbench of the miniature drilling and milling machine is 1.5mm, and the automatic feeding speed of the X-axis of the workbench is 15 mm/min, thus being completely suitable for automatically feeding and processing parts of an end mill with the diameter of 3-6 mm. The power of the driving motor of the micro automatic feeding mechanism is only one tenth of that of the driving motor of the original mechanism, and the weight and the cost are one fifth of that of the original mechanism.
As shown in fig. 1 to 7, the automatic feeding mechanism and method for a micro machine tool according to the present embodiment of the invention is composed of a transition plate 1, a driven screw rod 2, a swing plate 6, a sector plate 10, a reduction motor 7, a driving gear 8 and a driven gear 3; the driven screw rod 2 is in threaded connection with a machine tool, and the driven screw rod 2 penetrates through the transition plate 1; the driven screw rod 2 penetrates through the end part of the transition plate 1 and is provided with a driven gear 3 which is fixedly connected, two sides of the surface of the transition plate 1 are provided with a fixed hinge shaft 4 and an upper hinge shaft 5, the outer side of the transition plate 1 is provided with a swinging plate 6, and the driven gear 3 at the end part of the driven screw rod 2 is positioned between the transition plate 1 and the swinging plate 6; the surface of the main body of the swinging plate 6 is provided with a fixed hinge shaft hole 14 matched with the diameter of the fixed hinge shaft 4, a waist slot hole 15 is arranged at the crossed position of the surface of the swinging plate 6 and the axis of the upper hinge shaft 5, the waist slot hole 15 is a long-strip slot hole with a vertical angle in the longitudinal direction, the swinging plate 6 is sleeved outside the fixed hinge shaft 4 through the fixed hinge shaft hole 14, the upper hinge shaft 5 is movably connected in the waist slot hole 15, and the swinging plate 6 can swing up and down around the fixed hinge shaft 4 as the axis and with the waist slot hole 15 as the movable distance; a lower hinge shaft 9 fixedly connected is arranged at a position vertically corresponding to the waist slot hole 15, and the lower hinge shaft 9 is used for connecting subsequent components;
the surface of the swinging plate is also provided with a fixedly connected speed reducing motor 7, the output shaft end of the speed reducing motor 7 is provided with a driving gear 8, the driving gear 8 and the driven gear 3 are positioned on the same plane, meanwhile, the driving gear 8 is adjacent to the driven gear 3, and the distance between the driving gear 8 and the driven gear 3 is smaller than the length of the kidney slot hole 15, and the distance is used for realizing the meshing and the disengagement between the driving gear 8 and the driven gear 3.
The swing plate 6 also comprises a sector plate 10 movably connected through a lower hinge shaft 9, and the shape of the sector plate 10 can be not a sector, and can also be a square, a circle or other regular or irregular shape; establish a lower hinge shaft hole 16 identical with lower hinge shaft 9 diameter on sector plate 10 main part surface, sector plate 10 overlaps on swing board 6 through this lower hinge shaft hole 16, and sector plate 10 establishes a sector groove 11 with the crossing position in axle center of last hinge shaft 5 simultaneously, and sector groove 11 and last hinge shaft 5 sliding fit, the overall structure of sector groove 11 are the strip slotted hole of arc and both ends mellow and full, and the width of sector groove 11 is: the diameter of the upper hinge shaft 5 is just matched, the upper hinge shaft 5 can be just placed in the groove, the groove and the upper hinge shaft 5 can be in back-and-forth sliding fit, and the distances between the starting and stopping points at the two ends of the arc-shaped structure of the sector groove 11 and the lower hinge shaft 9 are unequal; meanwhile, one side of the sector plate 10 is provided with a fixedly connected toggle handle for facilitating adjustment of toggle.
The using method comprises the following steps: when automatic feeding is needed, the speed reducing motor 7 is powered on to drive the driving gear 8 to rotate; the sector plate 10 is stirred upwards, the sector plate 10 takes a lower hinge shaft 9 and a lower hinge shaft hole 16 which are movably connected as axes, a sector groove 11 of the sector plate is connected with an upper hinge shaft 5 in a sliding way and is pushed forwards, the radius of the starting end part and the stopping end part of the sector groove 11 is different from that of the lower hinge shaft 9, the swinging plate 6 swings upwards by taking a fixed hinge shaft 4 as the axis through the sliding connection of the sector groove 11 and the upper hinge shaft 5, the swinging plate can swing upwards under the action of a waist groove hole 15 of the swinging plate 6, a driving gear 8 of a speed reducing motor 7 is meshed and connected with a driven gear 3 of a driven screw rod 2, the driven screw rod 2 which is in threaded connection with a machine tool is driven to move left and right integrally to realize automatic feeding, and the automatic feeding is advanced and retreated simultaneously depending on the rotating; when automatic feeding is not needed, the fan-shaped plate 10 is pulled downwards, the fan-shaped groove 11 is connected with the upper hinge shaft 5 in a sliding mode through the radial distance between the starting end and the stopping end of the fan-shaped groove 11 and the lower hinge shaft 9, so that the fan-shaped plate 10 generates downward pushing force on the swinging plate 6 through the lower hinge shaft 9, the swinging plate 6 swings downwards through the movable connection between the waist-shaped groove 15 and the upper hinge shaft 5 on the basis of taking the fixed hinge shaft 4 as an axis, the swinging plate 6 drives the driving gear 8 of the speed reducing motor 7 fixedly connected with the swinging plate 6 to swing downwards, and the driving gear 8 is disengaged from the driven gear 3.
Example 2:
in another embodiment of the present invention shown in fig. 8 to 10, the entire structure may be provided on a machine tool in addition to embodiment 1.
Example 3:
fig. 11 to 13 show another embodiment of the sector plate 10 of the automatic feeding mechanism and method for a micro-machine according to the present invention based on embodiments 1 and 2, in order to make the dial adjustment of the sector plate 10 more stable and not loose, on the basis of embodiments 1 and 2, the sector groove 11 of the original sector plate 10 is changed to include a first sector groove 19 and a second sector groove 20, the second sector groove 20 is in a horizontal position with the first sector groove 19, the second sector groove 20 is higher than the first sector groove 19, and the radius of the second sector groove 20 is larger than that of the first sector groove 19, but the widths of the first sector groove 19 and the second sector groove 20 are the same, the intersection state of the first sector groove 19 and the second sector groove 20 at different angles forms a natural transition whole, because the first sector groove 19 and the second sector groove 20 are arc-shaped structures, the position of intersection between the second sector grooves 20 and the first sector grooves 19 is made to be slightly lower than the height of the first sector grooves, so that the second sector grooves exert pressure on the upper hinge shaft 5, and the upper hinge shaft does not slip off during operation. A screw hole 17 longitudinally penetrating through the first fan-shaped groove 19 is further arranged above the first fan-shaped groove 19, the axis of the screw hole 17 deviates from the center of the upper hinge shaft 5, a bead screw 18 in threaded connection is further arranged inside the screw hole 17, the bead screw 18 is just positioned on the periphery of the diameter of the upper hinge shaft 5 and forms a resistance to the upper hinge shaft 5, and when the upper hinge shaft 5 is positioned at the end part of the first fan-shaped groove 19, the upper hinge shaft 5 is locked at the bead screw 18, so that the upper hinge shaft 5 cannot easily slip off due to vibration in the mechanical operation process.
The embodiments of the present invention have been described with reference to the accompanying drawings, but these descriptions should not be construed as limiting the scope of the present invention, which is defined by the appended claims, and the scope of the present invention is defined by the following claims, and the present invention is applicable to other devices capable of automatic feeding by applying the structure of the present invention to other devices capable of automatic feeding by using the swinging plate, the sector plate and the sector groove to realize the connection or disconnection of engagement through the sliding connection, or using other objects with similar functions, or by changing the shape of the sector plate.
Claims (9)
1. The automatic feeding mechanism of the micro machine tool is characterized by comprising a transition plate fixed on the micro machine tool and a driven screw rod which is in threaded connection with the micro machine tool and transversely passes through the transition plate, a driven gear fixedly connected with the end part of the driven screw rod is arranged,
the transition plate is provided with a fixed hinge shaft and an upper hinge shaft,
the transition plate is movably connected with a swinging plate, the swinging plate is provided with a fixed hinge shaft hole and a waist slot hole, the fixed hinge shaft is movably connected in the fixed hinge shaft hole, the upper hinge shaft is movably connected in the waist slot hole, the other side of the swinging plate opposite to the waist slot hole is provided with a lower hinge shaft,
the device also comprises a speed reducing motor and a lower hinge shaft which are fixed on the swinging plate, a driving gear which is positioned on the same plane with the driven gear is arranged at the output shaft end of the speed reducing motor,
the lower hinge shaft is movably connected with a sector shifting block which comprises a lower hinge shaft hole and a sector groove, the lower hinge shaft is movably connected in the lower hinge shaft hole, the sector groove is in sliding fit with the upper hinge shaft,
the engagement or disengagement of the driving gear and the driven gear is realized by the sector plate driving the swinging plate through the sector groove.
2. The automatic feeding mechanism of the micro machine tool is characterized by comprising a transition plate fixed on the micro machine tool and a driven screw rod which is in threaded connection with the micro machine tool and transversely passes through the transition plate, a driven gear fixedly connected with the end part of the driven screw rod is arranged,
the transition plate is provided with a fixed hinge shaft and an upper hinge shaft,
the transition plate is movably connected with a swinging plate, the swinging plate is provided with a fixed hinge shaft hole and a waist slot hole, the fixed hinge shaft is movably connected in the fixed hinge shaft hole, the upper hinge shaft is movably connected in the waist slot hole, the other side of the swinging plate opposite to the waist slot hole is provided with a lower hinge shaft,
the device also comprises a speed reducing motor and a lower hinge shaft which are fixed on the swinging plate, a driving gear which is positioned on the same plane with the driven gear is arranged at the output shaft end of the speed reducing motor,
the lower hinge shaft is movably connected with a sector shifting block which comprises a lower hinge shaft hole, a first sector groove and a second sector groove, the lower hinge shaft is positioned in the lower hinge shaft hole and is movably connected with the lower hinge shaft hole, the first sector groove and the second sector groove are communicated into a whole, the upper hinge shaft is positioned in the first sector groove and the second sector groove and is in sliding fit with the first sector groove and the second sector groove,
and the engagement or disengagement of the driving gear and the driven gear is realized by driving the swinging plate through the first sector groove and the second sector groove by the sector plate.
3. The automatic feeding mechanism of a micro-machine according to claim 2, comprising a screw hole longitudinally penetrating through the first sector groove of the sector plate from top to bottom, the axis of the screw hole being located adjacent to the diameter of the end of the first sector groove, the screw hole internally including a ball screw threadedly engaged therewith, the ball screw being locked thereto when the upper hinge shaft is located at the end of the first sector groove;
the widths of the first fan-shaped groove and the second fan-shaped groove are the same, the arc radiuses of the first fan-shaped groove and the second fan-shaped groove are different, and the first fan-shaped groove and the second fan-shaped groove are intersected at different angles to form a whole.
4. The automatic feeding mechanism of a micro machine tool according to claim 1, 2 or 3, wherein the waist slot is vertically angled in the longitudinal direction;
the width of the fan-shaped groove is just matched with the diameter of the upper hinge shaft.
5. The method for the automatic feeding mechanism of the micro machine tool is characterized by comprising seven main components, namely a transition plate, a driven screw rod, a swinging plate, a sector plate, a speed reducing motor, a driving gear and a driven gear, and comprises the following six steps:
step one, fixedly connecting a transition plate with a micro machine tool, connecting a driven screw rod with the machine tool through threads, and penetrating the driven screw rod through the transition plate;
secondly, a driven screw rod penetrates through the end part of the transition plate and is provided with a driven gear;
step three, the step includes three manufacturing processes:
(step 1): checking and confirming whether the driven gear in the second step is on the surface of the transition plate;
(step 2): selecting two opposite positions on the surface of the transition plate;
(step 3): setting two parts of a fixed hinge shaft and an upper hinge shaft at the selected position in the step 2;
step four, adding a swing plate which is movably connected, wherein the swing plate comprises the following four workpiece procedures,
(step 1): a fixed hinge shaft hole matched with the diameter of the fixed hinge shaft is arranged on the surface of the main body of the swinging plate,
(step 2): the swinging plate is sleeved outside the fixed hinge shaft through the hole of the fixed hinge shaft,
(step 3): after the step 2 is finished, a waist-shaped slot is arranged at the position where the surface of the swinging plate is crossed with the axis of the upper hinge shaft, the upper hinge shaft is movably connected in the waist-shaped slot,
(charging 4): a lower hinge shaft is arranged at a position horizontally corresponding to the waist-shaped slotted hole;
step five, the step comprises the following four working procedures:
(step 1): the speed reducing motor is fixedly connected with the swinging plate,
(step 2): the output shaft end of the speed reducing motor is provided with a driving gear,
(step 3): the driving gear and the driven gear are positioned on the same plane, and the driving gear is adjacent to the driven gear;
(step 4): checking and confirming that the distance between the driving gear and the driven gear is smaller than the length of the waist slot hole, if so, entering a sixth step;
step six, also include a sector plate, the preparation of this sector plate includes four processes:
(step 1): the surface of the main body of the sector plate is provided with a lower hinge shaft hole matched with the diameter of the lower hinge shaft, the sector plate is sleeved on the swinging plate through the lower hinge shaft hole,
(step 2): a sector groove is arranged at the intersection position of the sector plate and the axis of the upper hinge shaft, the sector groove is in sliding fit with the upper hinge shaft,
(step 3): the manufacturing standard of the fan-shaped groove is a strip-shaped groove hole which is integrally arc-shaped and has two rounded ends;
(step 4): the distances between the starting and stopping points of the two ends of the fan-shaped groove and the lower hinge shaft are kept unequal.
6. The method for the automatic feeding mechanism of the micro machine tool is characterized by comprising seven main components, namely a transition plate, a driven screw rod, a swinging plate, a sector plate, a speed reducing motor, a driving gear and a driven gear, and comprises the following six steps:
step one, fixedly connecting a transition plate with a micro machine tool, connecting a driven screw rod with the machine tool through threads, and penetrating the driven screw rod through the transition plate;
secondly, a driven screw rod penetrates through the end part of the transition plate and is provided with a driven gear;
step three, the step includes three manufacturing processes:
(step 1): checking and confirming whether the driven gear in the second step is on the surface of the transition plate;
(step 2): selecting two opposite positions on the surface of the transition plate;
(step 3): setting two parts of a fixed hinge shaft and an upper hinge shaft at the selected position in the step 2;
step four, adding a swing plate which is movably connected, wherein the swing plate comprises the following four workpiece procedures,
(step 1): a fixed hinge shaft hole matched with the diameter of the fixed hinge shaft is arranged on the surface of the main body of the swinging plate,
(step 2): the swinging plate is sleeved outside the fixed hinge shaft through the hole of the fixed hinge shaft,
(step 3): after the step 2 is finished, a waist-shaped slot is arranged at the position where the surface of the swinging plate is crossed with the axis of the upper hinge shaft, the upper hinge shaft is movably connected in the waist-shaped slot,
(charging 4): a lower hinge shaft is arranged at a position horizontally corresponding to the waist-shaped slotted hole;
step five, the step comprises the following four working procedures:
(step 1): the speed reducing motor is fixedly connected with the swinging plate,
(step 2): the output shaft end of the speed reducing motor is provided with a driving gear,
(step 3): the driving gear and the driven gear are positioned on the same plane, and the driving gear is adjacent to the driven gear;
(step 4): checking and confirming that the distance between the driving gear and the driven gear is smaller than the length of the waist slot hole, if so, entering a sixth step;
step six, also include a sector plate, the preparation of this sector plate includes six processes:
(step 1): the surface of the main body of the sector plate is provided with a lower hinge shaft hole matched with the diameter of the lower hinge shaft, the sector plate is sleeved on the swinging plate through the lower hinge shaft hole,
(step 2): the intersecting position of the fan-shaped plate and the axis of the upper hinge shaft is provided with a first fan-shaped groove which is in sliding fit with the upper hinge shaft, the other end of the first fan-shaped groove is provided with a second fan-shaped groove which has a radius larger than that of the first fan-shaped groove, but has the same groove body width and intersects with the first fan-shaped groove at different angles,
(step 3): the first fan-shaped groove and the second fan-shaped groove are communicated to form a whole with natural and complete transition;
(step 4): a screw hole with the axis deviating from the circle center of the upper hinge shaft is arranged above the first sector groove of the sector plate;
(step 5): a wave bead screw connected with a thread is arranged in the screw hole;
(step 6): whether the position of the wave bead screw reaches the standard is checked and confirmed, and the qualified standard is as follows: when the upper hinge shaft is positioned at the end part of the first sector groove, the upper hinge shaft is locked at the ball screw;
7. the method of claim 6 or 7, wherein the check confirms that the swing plate can swing up and down around the fixed hinge shaft at the waist slot hole as a moving pitch.
8. The method of an automatic feeding mechanism of a micro machine tool according to claim 8, wherein the manufacturing standard of the width of the fan-shaped groove is as follows: the diameter of the upper hinge shaft is just matched, the upper hinge shaft can be just placed in the upper hinge shaft, and the upper hinge shaft can slide back and forth.
9. The method of claim 9, wherein the sector plate is checked to be able to swing back and forth around the lower hinge shaft, and a toggle handle is fixedly connected to one side of the sector plate for facilitating toggle adjustment.
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| CN201910883866.4A CN110900284A (en) | 2019-09-17 | 2019-09-17 | Automatic feeding mechanism and method for micro machine tool |
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Effective date of registration: 20220411 Address after: 225600 No. 68, Fuda Road, Jieshou Town, Gaoyou City, Yangzhou City, Jiangsu Province Applicant after: Jiangsu Yishou Machinery Technology Co.,Ltd. Address before: 510730 room 211, north of No.6 factory building, No.9 Lanyu 4th Street, Huangpu District, Guangzhou City, Guangdong Province Applicant before: Qineng Technology (Guangzhou) Co.,Ltd. |
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