TWI750835B - Motor drive structure - Google Patents

Abstract

The invention provides a motor drive structure, including spline drive disc, drive bracket and motor. The spline drive disc is arranged at one end of the drive bracket, and the connecting part of the spline drive disc is penetrated with the first through hole of the drive bracket, and the top of the connecting part is convexly provided with a positioning part. The buckle is used to buckle the buckle part of the drive bracket, and the engagement splines and ribs are respectively embedded with the slot and groove of the drive bracket. The motor is set between the two ends of the drive bracket, and the drive end of the motor is connected to the spline drive disc, and then when the motor drives the spline drive disc to rotate, the drive bracket can be rotated by the spline drive disc. With the above structural improvement, the present invention can simplify the assembly steps, so as to achieve the effect of improving the assembly efficiency of the motor drive structure.

Description

Motor drive structure

The invention relates to a motor drive structure, in particular to a motor drive structure in which a spline drive plate is engaged with a drive bracket, and the spline drive plate is driven by a motor to drive the drive bracket to rotate.

The joints of conventional robots are equipped with components such as servo motors, steering wheels, and steering wheel disks, so that the joints of the robot can rotate in multiple directions. However, the conventional steering wheel is provided with a plurality of bridging holes, so as to be fixed on the steering wheel through a plurality of screws, wherein the specification of the steering wheel is a standard, but it can be adjusted to meet any corresponding size by adjusting the locking position. assembly requirements.

However, the above-mentioned servo motor is a module in conventional applications, which can be composed of circuit boards, gears (several specifications), and motors. Robot), so the module will also include a screw plate, and then according to the application of different specifications, only need to lock the screw in the corresponding screw hole on the screw plate to complete the assembly.

However, when the above method is used for locking, considering that a servo motor module usually needs to be locked with 4 to 6 screws, the assembly process will be very cumbersome and time-consuming. When fixed, it will greatly affect the overall assembly efficiency.

In order to solve the above-mentioned problems of the prior art, the present invention proposes a motor drive structure, which includes a spline drive plate, a drive bracket and a motor. The spline drive plate has a first surface and a second surface opposite to each other. The center of the first surface is vertically extended to form a connecting portion, and the edge is vertically extended to form a plurality of clips. The outer peripheral edge radially extends to form a plurality of engaging splines, wherein a protruding rib is formed between two adjacent engaging splines, the protruding rib is arranged along the first surface of the spline transmission plate, and one end of the protruding rib is connected The outer peripheral edge of the connecting portion is protruded from the outer peripheral edge of the spline transmission plate at the other end, and a positioning portion is protruded from the top end of the connecting portion. There is an accommodating space between the two ends of the drive bracket, and the spline transmission plate is arranged on the side of one end opposite to the other end, and a first through hole is arranged corresponding to the connecting portion for the connecting portion to pass through, and corresponding to the plurality of Each buckle is provided with a plurality of buckle portions for each of the buckles to be buckled, and a plurality of slots corresponding to the plurality of engaging splines are provided for each of the engaging splines to be embedded, and corresponding to the plurality of engaging splines. The protruding rib is provided with a groove for the protruding rib to be embedded. The motor is arranged in the accommodating space, and one end of the motor is a driving end and is connected to the connecting portion and passes through an end of the first through hole.

The aforementioned motor driving structure further includes a first connecting member, the connecting portion and the transmission end are penetrated by the second surface of the spline transmission plate, so that the spline transmission plate is fixedly connected to the motor.

In the aforementioned motor drive structure, an end of the connecting portion corresponding to the driving end is concave to form a socket space, the inner surface of the socket space has a cogging structure, the driving end is provided with a connecting gear, and the connecting portion When the driving end is sleeved, the tooth slot structure engages the connecting gear.

In the aforementioned motor driving structure, wherein the tooth slot structure has a wide tooth slot, and the connecting gear train has a wide tooth portion correspondingly.

In the aforementioned motor-driven structure, an outer edge of the spline transmission plate is provided with a pulling portion adjacent to the second surface.

In the aforementioned motor drive structure, one end of the plurality of engaging splines adjacent to the edge of the spline drive plate forms an inclined surface.

In the aforementioned motor-driven structure, a buckle portion of the buckle member is formed on a surface of the buckle member opposite to the connecting portion.

In the aforementioned motor drive structure, the drive bracket is provided with an auxiliary through hole on one side of the buckle portion opposite to the first through hole.

In the aforementioned motor driving structure, the other end of the drive bracket is provided with a second through hole, and the second through hole is rotatably provided with a connecting shaft, and the connecting shaft is connected to the other end of the motor.

The aforementioned motor driving structure further includes a second connecting member, which penetrates the connecting shaft member and the other end of the motor, so that the connecting shaft member is fixedly connected to the motor.

Based on the above, the motor drive structure of the present invention is designed with a spline drive plate structure, so that it is snapped and fitted with the drive bracket, thereby eliminating the conventional step of locking with multiple screws and greatly reducing the assembly time. And simplify the assembly steps, so as to achieve the effect of improving the assembly efficiency.

1: Motor drive structure

11: Spline drive disc

111: First surface

112: Second Surface

113: Links

1131: socket space

1132: Cogging structure

1133: Wide cogging

114: Snaps

1141: Buckle

115: snap spline

1151: Bevel

116: Ribs

117: Wrench Department

118, 132, 134: connecting holes

119: Positioning Department

12: Drive bracket

121: first through hole

122: Buckle part

123: Card slot

124: Groove

125: Auxiliary through hole

126: second through hole

13: Motor

131: Link Gear

1311: Wide teeth

133: Link Block

14: The first link

15: connecting shaft

16: Second link

S: accommodating space

FIG. 1 is an exploded view of the motor drive structure of the present invention.

FIG. 2 is a schematic diagram of the motor driving structure of the present invention.

3 is a top view of the spline drive plate of the motor drive structure of the present invention.

4 is a side view of the spline drive plate of the motor drive structure of the present invention.

5 is a bottom view of the spline drive plate of the motor drive structure of the present invention.

FIG. 6 is a schematic diagram of the drive bracket of the motor drive structure of the present invention.

FIG. 7 is a first schematic diagram of the motor of the motor drive structure of the present invention.

FIG. 8 is a second schematic diagram of the motor of the motor drive structure of the present invention.

The following specific embodiments are used to illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the art, and are not intended to limit the implementation of the present invention. Therefore, it has no technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the present invention without affecting the effect and the purpose that the present invention can achieve. The technical content disclosed by the invention can be covered within the scope. At the same time, the terms such as "adjacent", "adjacent", "relative", "corresponding", "first", "second", "on" and "one" quoted in this specification are only For convenience of description, it is not intended to limit the implementable scope of the present invention. Changes or adjustments in their relative relationships should be regarded as the implementable scope of the present invention without substantially changing the technical content.

Please refer to FIG. 1 to FIG. 8 , which are schematic diagrams of the motor driving structure 1 of the present invention and its components, respectively. As shown in the figure, the motor drive structure 1 of the present invention includes a spline drive plate 11 , a drive bracket 12 and a motor 13 . Among them, the motor drive structure 1 is suitable for the actuation of a specific part of a mechanical device, such as the joint rotation of a robot.

The spline drive plate 11 is approximately circular, and has a first surface 111 and a second surface 112 opposite to each other. The center of the first surface 111 extends to form a connecting portion 113, and the connecting portion 113 is vertical. The first surface 111 is cylindrical and hollow, and the connecting portion 113 is opposite to the first surface 111 One end is recessed to form a socket space 1131 , and an inner surface of the socket space 1131 is provided with a tooth slot structure 1132 including a plurality of tooth slots.

In addition, a plurality of latches 114 are formed at the edge of the first surface 111 of the spline drive plate 11 , and the plurality of latches 114 are perpendicular to the first surface 111 . The buckles 114 are arranged symmetrically or equidistantly along the edge of the first surface 111 , and an end of the buckles 114 opposite to the first surface 111 has a buckle portion 1141 . one side.

And, the first surface 111 of the spline transmission plate 11 radially extends along the outer periphery of the connecting portion 113 to form a plurality of engaging splines 115, the engaging splines 115 are elongated structures, and a plurality of engaging splines 115 are formed The splines 115 are symmetrical to each other on the first surface 111 or radially arranged at an equal angle with the connecting portion 113 as the axis. An inclined surface 1151 is formed at one end of the plurality of engaging splines 115 adjacent to the edge of the spline transmission plate 11 , and the inclined surface 1151 is directed toward the first surface 111 from the adjacent end of the engaging splines 115 opposite to one of the surfaces of the first surface 111 . The direction of the edge of the surface 111 is inclined downward, so that the spline drive plate 11 can be easily pryed up from the drive bracket 12 by inserting a tool into the end of the engaging spline 115 with the inclined surface 1151, so as to achieve the purpose of convenient disassembly.

It is added that the spline transmission disc 11 can be manufactured by injection molding, and its material can be a mixed material of PBT plastic (full name: Polybutylene terephthalate) and GF glass fiber (full name: Glass fiber), with its high The characteristics of mechanical strength, of course, the above are only examples, and the process or material (such as metal) can be changed according to the required conditions (such as increased torsion force), so it is not limited to the above content.

A convex rib 116 is formed between the two adjacent engaging splines 115. The convex rib 116 has an elongated structure and is disposed on the first surface 111 of the spline transmission plate 11, and one end thereof is connected to The outer peripheral edge of the connecting portion 113 has the other end protruding from the outer peripheral edge of the spline drive plate 11 , and a positioning portion 119 is protruded from the top end of the connecting portion 113 . At the time, the correct assembly direction of the spline drive plate 11 can be quickly found according to the protrusion of the protruding rib 116 and the positioning portion 119 protruding from the top end of the connecting portion 113, so as to avoid the wrong assembly direction and reduce the frequency of visual inspection of the assembly direction. And can effectively improve the assembly efficiency.

And, the outer edge of the spline drive plate 11 adjacent to the second surface 112 is extended with a pulling portion 117 , whereby the assembler can pull the pull when disassembling the spline drive plate 11 . part 117 to more easily detach the spline drive plate 11 from the drive bracket 12 .

The drive bracket 12 has a substantially U-shaped structure. There is an accommodating space S between the two ends of the drive bracket 12. The spline transmission plate 11 is installed on the side of one end opposite to the other end, and the end of the drive bracket 12 corresponds to the The connecting portion 113 is provided with a first through hole 121 for the connecting portion 113 to pass through. The connecting portion 113 is partially exposed on the other side of the end, and the end of the driving bracket 12 is provided with corresponding to the plurality of clips 114 . A plurality of buckle portions 122 are used for each of the buckle members 114 to be buckled. When buckled, the buckle portions 1141 will pass through the buckle portions 122 to be exposed on the other side of the end of the driving bracket 12 and abut against the buckle portions 122 The end of the drive bracket 12 is also provided with a plurality of locking grooves 123 corresponding to the plurality of engaging splines 115 for each of the engaging splines 115 to be embedded, and a groove 124 is formed on the corresponding protruding rib 116 to For the protruding rib 116 to be embedded, the length of the groove 124 is greater than the plurality of card grooves 123, and the groove 124 and the plurality of card grooves 123 are arranged in a radial dislocation, so as to avoid installation by assemblers When the disc 11 is splined, the assembly direction is wrong.

The aforementioned drive bracket 12 is provided with an auxiliary through hole 125 on one side of the buckle portion 122 opposite to the first through hole 121 . When the spline transmission plate 11 is removed, an auxiliary tool can be used to set the end of the drive bracket 12 with an auxiliary through hole 125 . The face of the spline drive plate 11 passes through the auxiliary through hole 125 , and one end of the auxiliary tool abuts against the buckle portion 1141 of the buckle member 114 on the other side of the end of the drive bracket 12 , and the buckle portion 1141 is slightly The catch portion 122 is displaced so that the spline drive plate 11 can be removed from the end of the drive bracket 12 more easily.

The motor 13 is disposed in the accommodating space S between the two ends of the driving bracket 12 , and one end of the motor 13 is a driving end for connecting the connecting portion 113 through the first through hole 121 . one end. The driving end has a connecting gear 131. When the connecting portion 113 is sleeved with the driving end, the cogging structure 1132 of the connecting portion 113 is engaged with the connecting gear 131, thereby increasing the stability of the connection between the driving end and the connecting portion 113. To improve the precision of rotation and improve the accuracy of rotation, the tooth slot structure 1132 can further have a wide tooth slot 1133, and the corresponding connecting gear 131 has a wide tooth portion 1311, and during the assembly process, the wide tooth slot 1133 can be used. The identification method of the wide tooth portion 1311 needs to be matched to ensure correct assembly.

However, in order to make the connection between the spline transmission plate 11 and the driving end of the motor 13 more stable, a first connecting member 14 is further passed through the second surface 112 of the spline transmission plate 11 through the spline transmission plate 11 . The connecting portion 113 and the driving end are locked so that the spline transmission plate 11 is fixed to the driving end of the motor 13; wherein, the first connection member 14 can be a screw, and the center of the spline transmission plate 11 is connected There is a corresponding connecting hole 118 , and the connecting gear 131 of the driving end also has a corresponding connecting hole 132 . The connecting holes 118 and 132 are used for screw penetration and locking, and they have an internal thread structure.

In addition, in order to enable the motor 13 to be stably disposed between the two ends of the drive bracket 12, a second through hole 126 is defined on the other side of the drive bracket 12, and a second through hole 126 is rotatably penetrated through a second through hole 126. A connecting shaft 15 is connected to the other end of the motor 13; and a second connecting member 16 is further passed through the connecting shaft 15 and the other end of the motor 13, so that the connection is made The shaft member 15 is fixedly connected to the motor 13; wherein, the other end of the motor 13 is provided with a connecting seat 133 corresponding to the connecting shaft member 15, and the connecting seat 133 has a connecting hole 134, and the second connecting member 16 can be a screw for piercing the lock The connecting hole 134 of the connecting shaft 15 and the connecting seat 133 is fixed, and the connecting hole 134 correspondingly has an internal thread structure.

When the motor drive structure 1 of the present invention is actually applied, the motor 13 will provide the power source to make the spline drive plate 11 connected to it rotate, and further drive the drive bracket 12 to rotate (the direction of the arrow as shown in FIG. 1 rotates). ), since the two ends of the driving bracket 12 or the sub-brackets connecting the two ends will be connected with other mechanical structures, so as to achieve the application of the motor driving structure 1 to each part of the mechanical structure In order to achieve the purpose of making a specific part of the mechanical structure drive in a certain direction by the motor 13 .

Based on the above, the motor drive structure 1 of the present invention is designed by the spline drive plate 11 so that it is snap-fitted to the drive bracket 12, thereby eliminating the conventional step of locking with a plurality of screws, thereby greatly reducing the need for Reduce assembly time and simplify assembly steps, thereby achieving the effect of improving assembly efficiency.

The above embodiments are used to illustrate the principles and effects of the present invention, but not to limit the present invention. Anyone skilled in the art can make modifications to the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the right of the present invention should be listed in the scope of the patent application described later.

1: Motor drive structure

11: Spline drive disc

12: Drive bracket

13: Motor

14: The first link

15: connecting shaft

16: Second link

Claims (10)

A motor drive structure, comprising: a spline drive plate, which has a first surface and a second surface opposite, the center of the first surface is vertically extended to form a connecting portion and the edge is vertically extended to form a plurality of and a plurality of engaging splines extending radially along the outer periphery of the connecting portion, wherein a protruding rib is formed between two adjacent engaging splines, and the protruding rib drives along the splines The first surface of the disc is arranged, one end of which is connected to the outer peripheral edge of the connecting portion, and the other end protrudes from the outer peripheral edge of the spline transmission plate, and a positioning portion is protruded from the top end of the connecting portion; There is an accommodating space between the ends, and the spline drive plate is arranged on the side of one end opposite to the other end, and a first through hole is arranged corresponding to the connecting portion for the connecting portion to pass through, and corresponding to the plurality of snaps There are a plurality of clasp portions for each of the clasp pieces to be buckled, and a plurality of clasps are arranged corresponding to the plurality of engaging splines for embedding each of the engaging splines, and a corresponding rib is provided with a The groove is used for the protruding rib to be embedded; and a motor is arranged in the accommodating space, and one end of the motor is a driving end connected with an end of the connecting portion passing through the first through hole. The motor drive structure as claimed in claim 1, further comprising a first connecting member, the connecting portion and the transmission end are penetrated through the second surface of the spline transmission plate, so that the spline transmission plate is fixed Connect the motor. The motor driving structure of claim 1, wherein an end of the connecting portion corresponding to the driving end is recessed to form a socket space, and an inner surface of the socket space has a tooth In the slot structure, the driving end is provided with a connecting gear, and when the connecting portion is sleeved with the driving end, the tooth and slot structure is engaged with the connecting gear. The motor drive structure of claim 3, wherein the cogging structure has a wide cogging slot, and the connecting gear train correspondingly has a wide tooth portion. The motor drive structure as claimed in claim 1, wherein an outer edge of the spline drive plate is provided with a wrench portion adjacent to the second surface. The motor drive structure as claimed in claim 1, wherein one end of the plurality of engaging splines adjacent to the edge of the spline drive plate forms an inclined surface. The motor-driven structure of claim 1, wherein a buckle portion of the buckle member is formed on a surface of the buckle member opposite to the connecting portion. The motor drive structure of claim 1, wherein the drive bracket is provided with an auxiliary through hole on a side of the buckle portion opposite to the first through hole. The motor driving structure as claimed in claim 1, wherein the other end of the driving bracket is provided with a second through hole, a connecting shaft member is rotatably passed through the second through hole, and the connecting shaft member is connected with the motor the other end. The motor driving structure according to claim 9, further comprising a second connecting member, which penetrates the connecting shaft member and the other end of the motor, so that the connecting shaft member is fixedly connected to the motor.

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