CN114227211A - Stepping motor transmission gear positioning and press-fitting device and method - Google Patents
Stepping motor transmission gear positioning and press-fitting device and method Download PDFInfo
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- CN114227211A CN114227211A CN202210184607.4A CN202210184607A CN114227211A CN 114227211 A CN114227211 A CN 114227211A CN 202210184607 A CN202210184607 A CN 202210184607A CN 114227211 A CN114227211 A CN 114227211A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
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Abstract
The invention discloses a positioning and press-fitting device for a transmission gear of a stepping motor, which comprises: the gear mounting seat is arranged on the bottom plate, and a gear is mounted on the gear mounting seat; the upper plate is provided with a needle pressing assembly which is positioned right above the gear mounting seat; the motor mounting panel, the motor mounting panel is located between bottom plate and the upper plate, the motor has been placed on the motor mounting panel, the directional tucking subassembly of one end of motor shaft on the motor, the directional gear mount pad of the other end of motor shaft, the guide part has on the gear mount pad, the guide part can be before the pressure equipment with the other end of motor shaft carry out the direction cooperation, it finely tunes to drive the gear position on the horizontal plane, so that motor shaft and gear form coaxial cooperation relation when the pressure equipment, tucking subassembly downstream promotes the motor and is close to the gear, so that the gear pressure equipment is on the motor shaft. The invention ensures that the needle pressing assembly, the motor shaft and the gear of the motor always keep the same axis in the whole press mounting process, thereby improving the press mounting effect.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a positioning and press-fitting device and a press-fitting method for a transmission gear of a stepping motor.
Background
The step motor is additionally provided with a gear or a gear box, which is an important market application of the step motor and is mainly used for mechanical transmission, acceleration and deceleration, transmission direction change, transmission torque change, power distribution and the like. The transmission gear is required to be pressed whether the gear is additionally arranged or the gear box is arranged, and the transmission gear is required to be pressed in a position concentric with a motor shaft so as to ensure that the gear is pressed in place and the motor is not easy to damage; present drive gear pressure equipment device is to be directly placed on the pressure equipment base by the pressure equipment motor, uses spacing pressure head directly to impress drive gear to the motor shaft on, the shortcoming that current drive gear pressure equipment device exists: (1) the limiting pressure head, the transmission gear and 3 parts of the pressed motor cannot guarantee vertical concentricity, so that the transmission gear cannot guarantee vertical concentricity with a motor transmission shaft in real time in the pressing process, the pressing stress is not vertical, and the motor shaft is easy to bend; (2) the motor is easy to damage and the gears are easy to crack obviously or in a recessive way when the pressure is overlarge without mechanical positioning and pressure control.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention provides a positioning and press-fitting device and a press-fitting method for a transmission gear of a stepping motor.
According to the embodiment of the invention, the step motor transmission gear positioning and press-fitting device comprises: the gear mounting seat is arranged on the bottom plate, and a gear is mounted on the gear mounting seat; the upper plate is positioned above the bottom plate, a needle pressing assembly is arranged on the upper plate, and the needle pressing assembly is positioned right above the gear mounting seat; the motor mounting panel, the motor mounting panel be located the bottom plate with between the upper plate, the motor mounting panel with the upper plate all can be close to or keep away from the bottom plate, the motor has been placed on the motor mounting panel, the one end of motor shaft on the motor is directional the presser finger subassembly, the other end of motor shaft is directional on the motor gear mount pad, the last guide part that has of gear mount pad, the guide part can before the pressure equipment with the other end of motor shaft leads the cooperation, drives the gear carries out the position fine setting on the horizontal plane, so that the motor shaft with the gear forms coaxial cooperation relation when the pressure equipment, presser finger subassembly downstream promotes the motor is close to the gear, so that the gear pressure equipment is in on the motor shaft.
The press-fitting device has the beneficial effects that the structure is simple, the upper plate, the motor mounting plate and the bottom plate are arranged from top to bottom, the press pin assembly, the motor and the gear are also arranged from top to bottom, and the press pin assembly and the motor move from top to bottom during press fitting, so that the press pin assembly, the motor shaft of the motor and the gear are always kept on the same axis in the whole press fitting process, manual positioning and alignment are not needed, and the press-fitting effect is improved.
According to an embodiment of the present invention, the bottom plate is provided with at least one limiting member, one end of the limiting member is connected to the bottom plate, the other end of the limiting member faces the upper plate, and when the gear is press-fitted to the motor shaft, the other end of the limiting member abuts against the upper plate.
According to an embodiment of the present invention, the number of the limiting members is two, the two limiting members are symmetrically disposed on two sides of the gear mounting base, and the limiting members include: the nut is arranged on the upper surface of the bottom plate, the lower end of the limiting column is in threaded connection with the nut, and the depth of the limiting column screwed into the nut is adjustable.
According to one embodiment of the invention, the gear mount comprises: the gear fixing seat, a third spring and a gear positioning pin, the gear fixing seat is detachably connected with the bottom plate, a hole-shaped structure which is arranged along the height direction is arranged on the gear fixing seat, the third spring and the gear positioning pin are all arranged in the hole-shaped structure, one end of the third spring is abutted to the bottom plate, the other end of the third spring is abutted to the lower end of the gear positioning pin, the upper end of the gear positioning pin protrudes out of the gear fixing seat, a gear sleeve is arranged at the upper end of the gear positioning pin, the gear positioning pin is coaxially arranged with the motor shaft, and when the gear is pressed on the motor shaft, the lower end of the gear is abutted to the upper end of the gear fixing seat.
According to one embodiment of the invention, the guide part is arranged at the upper end of the gear positioning pin, the guide part is a tip part, the tip part is conical, and the other end of the motor shaft is provided with a process hole which is matched with the tip part.
According to one embodiment of the invention, before press fitting, an annular gap is formed between the gear positioning pin and the gear fixing seat, and the radial width of the annular gap is 0.3 mm.
According to one embodiment of the invention, the needle pressing assembly comprises: the pressing pin fixing seat is detachably arranged on the lower surface of the upper plate, the pressing pin is arranged on the pressing pin fixing seat, the lower end of the pressing pin protrudes downwards from the lower end of the pressing pin fixing seat, and the pressing pin and the motor shaft are coaxially arranged.
According to an embodiment of the invention, the step motor transmission gear positioning press-fitting device further comprises: two direction reset pieces, two the direction resets the piece symmetry and establishes the both sides of gear mount pad, the bottom plate the upper plate with the motor mounting panel all with the direction resets and links to each other, the direction resets the piece place the axis with the motor shaft parallels.
According to one embodiment of the present invention, the guided reset device includes: the guide post, a first spring and a first sliding block, wherein one end of the guide post is vertically connected with the bottom plate, the first spring and the first sliding block are sleeved on the guide post, the first sliding block is connected with the motor mounting plate, one end of the first spring is abutted against the bottom plate, and the other end of the first spring is abutted against the first sliding block.
According to one embodiment of the present invention, the guided reset device further comprises: the guide post is sleeved with the second spring and the second sliding block, the second spring and the second sliding block are connected with the upper plate, one end of the second spring is abutted against the first sliding block, and the other end of the second spring is abutted against the second sliding block.
According to one embodiment of the invention, the motor mounting plate is provided with a motor mounting seat, the motor mounting seat is provided with a mounting hole penetrating along the thickness direction, and the motor is provided with a boss matched with the mounting hole.
According to one embodiment of the invention, the mounting hole is in clearance fit with the boss in the circumferential direction, and the gear is in clearance fit with the gear positioning pin in the circumferential direction.
According to one embodiment of the invention, the upper surface of the upper plate is provided with a pressure sensor, and the pressure sensor is positioned right above the pressing pin assembly.
According to one embodiment of the invention, the press-fitting method comprises the following steps: the stepping motor transmission gear positioning and press-fitting device is placed on a press machine, so that a hammer head on the press machine is positioned right above a press pin assembly; step two: placing a gear on the gear mounting seat, and placing a motor on the motor mounting plate; step three: starting the press machine, driving the press needle assembly to move downwards by the hammer head, pushing the motor to move towards the gear, driving the gear to automatically finely adjust in a horizontal plane by the gear mounting seat when the gear mounting seat is contacted with the motor shaft, enabling the motor shaft and the gear to form a coaxial relation, and continuing to move downwards by the motor shaft until the gear is completely pressed on the motor shaft; step four: after the press mounting is finished, the hammer head moves upwards, and all parts on the stepping motor transmission gear positioning press mounting device reset.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic perspective view of a gear positioning and press-fitting device of a stepping motor according to the present invention;
FIG. 2 is a schematic structural view of a stepper motor drive gear positioning press-fitting device according to the present invention before press-fitting;
FIG. 3 is a schematic diagram showing the pressed structure of the stepping motor transmission gear positioning pressing device according to the present invention;
FIG. 4 is an enlarged partial view of the gear of FIG. 3 at the gear alignment pin;
reference numerals:
the device comprises a bottom plate 1, a motor mounting plate 2, an upper plate 3, a guide reset piece 4, a needle pressing assembly 5, a limiting piece 6, a gear mounting seat 7, a motor mounting seat 8, a pressure sensor 9, a guide post 41, a first spring 42, a first sliding block 43, a second spring 44, a second sliding block 45, a needle pressing fixing seat 51, a needle pressing 52, a limiting post 61, a nut 62, a gear fixing seat 71, a third spring 72, a gear positioning pin 73, a tip portion 731 and a mounting hole 81.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The positioning and press-fitting device for the transmission gear of the stepping motor according to the embodiment of the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, a stepping motor transmission gear positioning press-fitting device according to an embodiment of the present invention includes: the motor mounting structure comprises a bottom plate 1, an upper plate 3 and a motor mounting plate 2, wherein a gear mounting seat 7 is arranged on the bottom plate 1, and a gear is mounted on the gear mounting seat 7; the upper plate 3 is positioned above the bottom plate 1, the upper plate 3 is provided with a needle pressing assembly 5, and the needle pressing assembly 5 is positioned right above the gear mounting seat 7; motor mounting panel 2 is located between bottom plate 1 and upper plate 3, motor mounting panel 2 and upper plate 3 all can be close to or keep away from bottom plate 1, the motor has been placed on the motor mounting panel 2, the directional tucking bar subassembly 5 of one end of motor shaft on the motor, the directional gear mount pad 7 of the other end of motor shaft on the motor, the guide part has on the gear mount pad 7, the guide part can be before the pressure equipment with the other end of motor shaft guide the cooperation, it finely tunes to drive the position on the horizontal plane of gear, so that motor shaft and gear form coaxial cooperation relation when the pressure equipment, tucking bar subassembly 5 downstream push motor is close to the gear, so that the gear pressure equipment is on the motor shaft.
The press-fitting device has the beneficial effects that the structure is simple, the upper plate 3, the motor mounting plate 2 and the bottom plate 1 are arranged from top to bottom, the press pin assembly 5, the motor and the gear are also arranged from top to bottom, and the press pin assembly 5 and the motor move from top to bottom during press-fitting, so that the press pin assembly 5, the motor shaft and the gear of the motor always keep the same axis in the whole press-fitting process, manual positioning and alignment are not needed, and the press-fitting effect is improved.
According to an embodiment of the present invention, at least one limiting member 6 is disposed on the bottom plate 1, one end of the limiting member 6 is connected to the bottom plate 1, the other end of the limiting member 6 faces the upper plate 3, and when the gear is press-fitted on the motor shaft, the other end of the limiting member 6 abuts against the upper plate 3. Further, the quantity of locating part 6 is two, and two locating parts symmetry are established in the both sides of gear mount pad 7, and the locating part includes: nut 62 and spacing post 61, nut 62 establish the upper surface at bottom plate 1, and the lower extreme and the nut 62 screw thread of spacing post 61 link to each other, and the degree of depth that spacing post 61 was twisted nut 62 is adjustable.
That is to say, the two limiting members 6 are symmetrically arranged on two sides of the gear mounting seat 7, when the press-fitting is in place, the upper plate 3 can be stressed at two points, so as to avoid inclination, and the depth of the limiting column 61 screwed into the nut 62 can be adjusted according to the assembly requirements of different motors and gears, on the other hand, the number of the nuts 62 is two, the lower nut 62 is connected with the bottom plate 1, and the upper nut 62 can lock the limiting column 61 after the limiting column 61 is attached to the lower nut 62.
According to one embodiment of the present invention, the gear mount 7 includes: gear fixing base 71, third spring 72 and gear locating pin 73, gear fixing base 71 can dismantle with bottom plate 1 and link to each other, the hole shape structure that has an edge direction of height to set up on the gear fixing base 71, third spring 72 and gear locating pin 73 all establish in the hole shape structure, the one end of third spring 72 offsets with bottom plate 1, the other end of third spring 72 offsets with the lower extreme of gear locating pin 73, the upper end protrusion in gear fixing base 71 of gear locating pin 73, the gear cover is located the upper end of gear locating pin 73, gear locating pin 73 sets up with the motor shaft is coaxial, when the gear pressure equipment was on the motor shaft, the lower extreme of gear offsets with the upper end of gear fixing base 71. Before press fitting, the gear is sleeved on the gear positioning pin 73, the gear positioning pin 73 protrudes out of the gear fixing seat 71 under the supporting action of the third spring 72, the gear positioning pin 73 is coaxial with the motor shaft, and therefore positioning of the gear and the motor shaft before press fitting is achieved, during press fitting, the gear positioning pin 73 retracts downwards into the hole-shaped structure, and the gear is pressed into the gear shaft under the support of the gear fixing seat 71.
As shown in fig. 4, the guiding portion is disposed at the upper end of the gear positioning pin 73, the guiding portion is a tip portion 731, the tip portion 731 is a conical shape, and the other end of the motor shaft has a fabrication hole, which is matched with the tip portion 731. Further, before press fitting, an annular gap is formed between the gear positioning pin 73 and the gear fixing seat 71, the radial width of the annular gap is 0.3mm, after the press fitting, the gear positioning pin 73 moves downwards, and a motor shaft enters the hole-shaped structure of the gear fixing seat 71. When the outer circumferential surface of the motor shaft is machined, a positioning process hole is formed in the center of the end part of the motor shaft close to the gear to be pressed, and the tip part 731 is conical, so that the tip part 731 can move in the annular gap when inserted into the process hole, and automatic centering is achieved.
Preferably, the presser pin assembly 5 comprises: the pressing pin fixing seat 51 is detachably arranged on the lower surface of the upper plate 3, the pressing pin 52 is arranged on the pressing pin fixing seat 51, the lower end of the pressing pin 52 protrudes downwards out of the lower end of the pressing pin fixing seat 51, and the pressing pin 52 is arranged coaxially with a motor shaft. The pressing pin 52, the motor shaft and the gear are located on the same axis, so that the uniform stress during press mounting is ensured, and the inclination is avoided.
According to an embodiment of the invention, the step motor transmission gear positioning press-fitting device further comprises: two direction reset pieces 4, two direction reset pieces 4 symmetry are established in the both sides of gear mount pad 7, and bottom plate 1, upper plate 3 and motor mounting panel 2 all link to each other with direction reset piece 4, and direction reset piece 4 place axis parallels with the motor shaft. Further, the guide returning member 4 includes: the guide post 41, the first spring 42 and the first slider 43, the one end of guide post 41 links to each other with the bottom plate 1 is perpendicular, and first spring 42 and the first slider 43 all overlap and establish on guide post 41, and the first slider 43 links to each other with the motor mounting panel 2, and the one end of first spring 42 offsets with bottom plate 1, and the other end of first spring 42 offsets with first slider 43. Further, the guiding reset unit 4 further includes: the second spring 44 and the second slider 45 are arranged on the guide post 41 in a sleeved mode, the second slider 45 is connected with the upper plate 3, one end of the second spring 44 abuts against the first slider 43, and the other end of the second spring 44 abuts against the second slider 45. The guide reset piece 4 can guide the movement of the upper plate 3 and the motor mounting plate 2, so that the deviation or inclination in the movement process is avoided, and the first spring 42 and the second spring 43 can be reset quickly after the press fitting is completed, so that the next press fitting is carried out, and the press fitting efficiency is improved.
According to one embodiment of the present invention, the motor mounting plate 2 is provided with a motor mounting seat 8, the motor mounting seat 8 is provided with a mounting hole 81 penetrating along the thickness direction, and the motor is provided with a boss matching with the mounting hole 81. Preferably, the mounting hole 81 and the boss are circular, and the axis of the mounting hole 81 is coaxial with the pressing pin 52 and the gear positioning pin 73, so that automatic coaxial arrangement of the motor and the gear is realized when the motor and the gear are placed on the device. The self-centering function of the fabrication hole and the tip 731 further avoids deviation during press fitting.
According to one embodiment of the present invention, the mounting hole 81 is circumferentially clearance-fitted to the boss, and the gear is circumferentially clearance-fitted to the gear positioning pin 73. The clearance fit can be convenient for operators to place the motor and the gear on the device.
According to one embodiment of the invention, the upper surface of the upper plate 3 is provided with a pressure sensor 9, and the pressure sensor 9 is positioned right above the pressing pin assembly 5. The pressure sensor 9 can set a lower limit and an upper limit of the press-in force, can effectively prevent a transmission gear caused by insufficient press-in force from falling off when the press-in force is pressed in, or can effectively prevent a motor shaft from bending caused by overlarge press-in force due to recessive cracking and obvious cracking of the gear caused by overlarge press-in force.
The components of the invention are connected by screws, so that the disassembly and the assembly are convenient, and the components of the pressing pin 52, the motor mounting plate 2, the gear fixing seat 71, the third spring 72, the gear positioning pin 73 and the like with different sizes can be replaced conveniently aiming at different motors and gears.
The invention also discloses a press mounting method, which comprises the following steps: the stepping motor transmission gear positioning and press-fitting device is placed on a press machine, so that a hammer head on the press machine is positioned right above a press pin assembly 5; step two: placing a gear on the gear mounting seat 7 and placing a motor on the motor mounting plate 2; step three: starting the press machine, driving the press needle assembly 5 to move downwards by the hammer head, pushing the motor to move towards the gear, driving the gear to automatically finely adjust in the horizontal plane by the gear mounting seat 7 when the gear mounting seat 7 is contacted with the motor shaft, so that the motor shaft and the gear form a coaxial relation, and continuing to move downwards until the gear is completely pressed on the motor shaft; step four: after the press mounting is finished, the hammer head moves upwards, and all parts on the stepping motor transmission gear positioning press mounting device reset.
As shown in fig. 2-3, in operation, the motor is placed on the motor mounting seat 8, the gear is placed on the gear positioning pin 73, when the hammer head on the press moves downwards, the hammer head contacts with the pressure sensor 9 first, so that the press pin 52 is pushed to contact with the upper end of the motor shaft downwards, the motor is pressed downwards to continue moving, the motor shaft contacts with the tip portion 731 of the upper end of the gear positioning pin 73 and then continues to press downwards, the tip portion 731 is matched with the fabrication hole, the tip portion 731 moves in the annular gap of 0.3mm to achieve automatic centering, then the motor shaft passes through the gear, after the hammer head returns upwards, the upper plate 3 and the motor mounting plate 2 return upwards, and once press-fitting operation is completed after the motor is taken down.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. The utility model provides a step motor drive gear location pressure equipment device which characterized in that includes:
the gear mounting structure comprises a bottom plate (1), wherein a gear mounting seat (7) is arranged on the bottom plate (1), and a gear is mounted on the gear mounting seat (7);
the upper plate (3) is positioned above the bottom plate (1), a needle pressing assembly (5) is arranged on the upper plate (3), and the needle pressing assembly (5) is positioned right above the gear mounting seat (7);
a motor mounting plate (2), the motor mounting plate (2) is positioned between the bottom plate (1) and the upper plate (3), the motor mounting plate (2) and the upper plate (3) can be close to or far away from the bottom plate (1), a motor is arranged on the motor mounting plate (2), one end of the motor shaft on the motor points to the press pin assembly (5), the other end of the motor shaft points to the gear mounting seat (7), the gear mounting seat (7) is provided with a guide part, the guide part can be in guide fit with the other end of the motor shaft before press fitting to drive the gear to perform fine position adjustment on the horizontal plane, so that the motor shaft and the gear form a coaxial matching relationship during press mounting, and the needle pressing assembly (5) moves downwards to push the motor to be close to the gear, so that the gear is pressed on the motor shaft.
2. The positioning and press-fitting device for the transmission gear of the stepping motor according to claim 1, wherein at least one limiting member (6) is arranged on the bottom plate (1), one end of the limiting member (6) is connected with the bottom plate (1), the other end of the limiting member (6) faces the upper plate (3), and when the gear is press-fitted on the motor shaft, the other end of the limiting member (6) abuts against the upper plate (3).
3. The stepping motor transmission gear positioning press-fitting device according to claim 2, wherein the number of the limiting members (6) is two, the two limiting members (6) are symmetrically arranged on two sides of the gear mounting seat (7), and the limiting members (6) comprise: the bottom plate comprises a nut (62) and a limiting column (61), wherein the nut (62) is arranged on the upper surface of the bottom plate (1), the lower end of the limiting column (61) is in threaded connection with the nut (62), and the depth of the limiting column (61) screwed into the nut (62) is adjustable.
4. A stepping motor transmission gear positioning press-fitting device according to claim 1, wherein the gear mounting seat (7) comprises: a gear fixing seat (71), a third spring (72) and a gear positioning pin (73), the gear fixing seat (71) is detachably connected with the bottom plate (1), a hole-shaped structure which is arranged along the height direction is arranged on the gear fixing seat (71), the third spring (72) and the gear positioning pin (73) are both arranged in the hole-shaped structure, one end of the third spring (72) is propped against the bottom plate (1), the other end of the third spring (72) is propped against the lower end of the gear positioning pin (73), the upper end of the gear positioning pin (73) protrudes out of the gear fixing seat (71), the gear is sleeved at the upper end of the gear positioning pin (73), the gear positioning pin (73) is coaxially arranged with the motor shaft, when the gear is pressed on the motor shaft, the lower end of the gear is abutted against the upper end of the gear fixing seat (71).
5. The positioning and press-fitting device for the transmission gear of the stepping motor according to claim 4, wherein the guide part is arranged at the upper end of the gear positioning pin (73), the guide part is a tip part (731), the tip part (731) is conical, the other end of the motor shaft is provided with a fabrication hole, and the fabrication hole is matched with the tip part (731).
6. The positioning and press-fitting device for the transmission gear of the stepping motor according to claim 5, wherein before press-fitting, an annular gap is formed between the gear positioning pin (73) and the gear fixing seat (71), and the radial width of the annular gap is 0.3 mm.
7. The stepping motor transmission gear positioning press-fitting device according to claim 1, wherein the pressing pin assembly (5) comprises: the pressing pin fixing seat (51) and the pressing pin (52), the pressing pin fixing seat (51) is detachably arranged on the lower surface of the upper plate (3), the pressing pin (52) is arranged on the pressing pin fixing seat (51), the lower end of the pressing pin (52) protrudes downwards from the lower end of the pressing pin fixing seat (51), and the pressing pin (52) and the motor shaft are coaxially arranged.
8. The stepping motor transmission gear positioning press-fitting device according to claim 1, further comprising: two direction reset piece (4), two the direction resets piece (4) symmetry and establishes the both sides of gear mount pad (7), bottom plate (1) upper plate (3) with motor mounting panel (2) all with the direction resets piece (4) and links to each other, the direction resets piece (4) place the axis with the motor shaft parallels.
9. The stepping motor transmission gear positioning press-fitting device according to claim 8, wherein the guide returning member (4) comprises: guide post (41), first spring (42) and first slider (43), the one end of guide post (41) with bottom plate (1) links to each other perpendicularly, first spring (42) with first slider (43) all overlap and are established on guide post (41), first slider (43) with motor mounting panel (2) link to each other, the one end of first spring (42) with bottom plate (1) offsets, the other end of first spring (42) with first slider (43) offset.
10. The stepping motor transmission gear positioning press-fitting device according to claim 9, wherein the guide returning member (4) further comprises: the guide post (41) is sleeved with the second spring (44) and the second sliding block (45), the second spring (44) and the second sliding block (45) are connected with the upper plate (3), one end of the second spring (44) abuts against the first sliding block (43), and the other end of the second spring (44) abuts against the second sliding block (45).
11. The positioning and press-fitting device for the transmission gear of the stepping motor according to claim 4, wherein a motor mounting seat (8) is arranged on the motor mounting plate (2), a mounting hole (81) penetrating through the motor mounting seat (8) along the thickness direction is formed in the motor mounting seat, and a boss matched with the mounting hole (81) is formed in the motor.
12. The stepping motor transmission gear positioning press-fitting device according to claim 11, wherein the mounting hole (81) is in clearance fit with the boss in the circumferential direction, and the gear is in clearance fit with the gear positioning pin (73) in the circumferential direction.
13. The stepping motor transmission gear positioning press-fitting device according to claim 1, wherein a pressure sensor (9) is arranged on the upper surface of the upper plate (3), and the pressure sensor (9) is positioned right above the pressing pin assembly (5).
14. A press fitting method is characterized by comprising the following steps,
the method comprises the following steps: placing the stepper motor transmission gear positioning press-fitting device as defined in any one of claims 1-13 on a press machine, so that a hammer head on the press machine is positioned right above a press pin assembly (5);
step two: placing the gear on the gear mounting seat (7), and placing the motor on the motor mounting plate (2);
step three: starting the press machine, driving the press needle assembly (5) to move downwards by the hammer head, pushing the motor to move towards the gear, driving the gear to automatically finely adjust on the horizontal plane by the gear mounting seat (7) when the gear mounting seat (7) is contacted with the motor shaft, enabling the motor shaft and the gear to form a coaxial relation, and continuing to move downwards until the gear is completely pressed on the motor shaft;
step four: after the press mounting is finished, the hammer head moves upwards, and all parts on the stepping motor transmission gear positioning press mounting device reset.
Priority Applications (1)
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| CN202210184607.4A CN114227211A (en) | 2022-02-28 | 2022-02-28 | Stepping motor transmission gear positioning and press-fitting device and method |
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| CN115026540A (en) * | 2022-06-01 | 2022-09-09 | 天津市盟利电机制造有限公司 | Press mounting tool for assembling impeller |
| CN115464369A (en) * | 2022-10-31 | 2022-12-13 | 常州市一鑫电气有限公司 | Output shaft press-fitting machine and process for quick model change of motor |
| CN115502702A (en) * | 2022-10-21 | 2022-12-23 | 宁波市鄞州职业教育中心学校 | Shaft end pin press-fitting equipment |
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| CN115464369A (en) * | 2022-10-31 | 2022-12-13 | 常州市一鑫电气有限公司 | Output shaft press-fitting machine and process for quick model change of motor |
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