Angular positioning device for motor base

Abstract

The utility model discloses an angular positioning device for a motor base, comprising: a mounting base, comprising a bottom support disc, a top support disc and a plurality of support rods; a self-centering cylinder, fixed on the bottom support disc; a rotating coupling, located below the bottom support disc and connected to the self-centering cylinder; a servo motor, connected to the self-centering cylinder through a rotating coupling and configured to drive the self-centering cylinder and the mounting base to rotate together to adjust the angular position of the motor base; a plurality of self-centering claws, connected to the self-centering cylinder and extending to the inside of an annular body, and configured to be switchable between a stowed position and an open position, in which the plurality of self-centering claws abut against the inner wall of the annular body to keep the motor base in place, and in the stowed position, the plurality of self-centering claws are disengaged from the inner wall of the annular body. The angular positioning device of the utility model is convenient for taking and placing the motor base, improves the angular positioning accuracy and has an error-proofing function.

Description

Technical Field

[0001] The utility model relates to an angular positioning device, in particular to an angular positioning device used for a motor base. Background Art

[0002] During the processing of the motor base in the automated production line, the angular position of the motor base entering the machine tool needs to be determined to prevent the fixture from being unable to clamp the motor base to be processed. In order to reduce the complexity of the fixture and improve economic efficiency, the motor base is usually positioned externally and then grabbed by a robot to be placed on the machine tool.

[0003] The angular positioning equipment used in the current automated production line usually adopts fixed positioning. There is a gap between the motor base and the positioning mandrel, resulting in low positioning accuracy, and the need to add an angular positioning function to the machine tool, which will increase the complexity of the fixture. At the same time, if the angular positioning function is not added to the machine tool, the angle of the motor base after entering the machine tool will fluctuate, thus affecting the subsequent processing and causing processing quality problems.

[0004] In addition, since there is a mix of incoming materials (for example, the motor base may be upside down or the motor base may be of different models), this needs to be identified to prevent the wrong motor base from entering the machine tool and causing damage to the fixture. Utility Model Content

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides an angular positioning device for a motor base, wherein the motor base has a cylindrical shape and includes an annular body, the annular body has a first end and a second end opposite to each other in an axial direction, the angular positioning device includes a self-centering device for receiving the motor base and rotating the motor base to a specific angular position, the self-centering device includes: a mounting base, the mounting base includes a bottom support disc, a top support disc located above the bottom support disc, and a plurality of support rods connecting the bottom support disc and the top support disc, the motor base can be placed and maintained on the top support disc; a self-centering cylinder, the self-centering cylinder is fixed to the bottom support disc; a rotating coupling, the A rotary coupling is located below the bottom support disc and connected to the self-centering cylinder; a servo motor, which is connected to the self-centering cylinder through the rotary coupling and is configured to drive the self-centering cylinder and the mounting base to rotate together to adjust the angular position of the motor base; and a plurality of self-centering claws, which are connected to the self-centering cylinder and extend into the interior of the annular body of the motor base, and are configured to be switchable between a stowed position and an open position, in which the plurality of self-centering claws abut against the inner wall of the annular body of the motor base to hold the motor base in place, and in which the plurality of self-centering claws are disengaged from the inner wall of the annular body of the motor base. Accordingly, it is possible to facilitate the placement and removal of the motor base on the mounting base, and eliminate the gap between the motor base and the holding mechanism, thereby ensuring that the motor base will not move and rotate when the robot grabs the motor base, thereby preventing the angular position from fluctuating.

[0006] Furthermore, the self-centering device further comprises a sensor, which is configured to sense a feature portion provided on the annular body of the motor base to determine that the motor base rotates to the specific angular position, thereby being able to accurately identify and determine the specific angular position to which the motor base rotates.

[0007] Further, the characteristic part is two through holes provided at the first end or the second end of the annular body, the two through holes are arranged on the annular body opposite to each other relative to the central axis of the motor base, and the line between the two through holes is perpendicular to the central axis, the sensor is a photoelectric sensor configured to emit light in a direction perpendicular to the central axis, and when the motor base rotates to the specific angular position, the light passes through the two through holes. Accordingly, the specific angular position to which the motor base rotates can be easily identified and determined.

[0008] Furthermore, the angular positioning device further comprises an alarm, which communicates with the photoelectric sensor and is configured to sound an alarm when the photoelectric sensor fails to detect the characteristic portion after the motor base rotates more than 180 degrees. Accordingly, an error prevention function is provided, thereby conveniently and effectively preventing the motor base from being inverted.

[0009] Furthermore, the top support disc includes a plurality of claw receiving grooves opened in the radial direction, and each claw receiving groove is used to receive a corresponding self-centering claw, thereby facilitating the placement of the self-centering claw.

[0010] Furthermore, the top support disc also includes a plurality of sub-support discs stacked and concentrically arranged, and the diameters of the plurality of sub-support discs increase from top to bottom. Accordingly, the mounting base can be adapted to motor bases of different models (eg, with different diameters).

[0011] Furthermore, the self-centering device further comprises a brake nut arranged at the connection portion between the rotary coupling and the motor shaft of the servo motor, wherein a top screw is arranged in the brake nut to abut against the motor shaft. Thus, possible loosening of the connection portion between the rotary coupling and the motor shaft of the servo motor can be prevented.

[0012] Further, the angular positioning device further includes a push centering device for rotating the motor base to a target angular position after the motor base is rotated to the specific angular position by the self-centering device, the push centering device including: a first push component, the first push component including a first cylinder and an upright push plate connected to each other, and the first push component is configured to be able to drive the upright push plate to reciprocate in a first moving direction perpendicular to the central axis of the motor base by the first cylinder, so as to abut against the foot provided on the annular body of the motor base and push the motor base to rotate; and a second push component, the second push component including a second cylinder and a fork-shaped member connected to each other, and the second push component is configured to be able to drive the fork-shaped member to reciprocate in a second moving direction perpendicular to the central axis of the motor base by the second cylinder, so as to abut against the heat dissipation rib provided on the annular body of the motor base by the tip portion of the fork-shaped member and push the motor base to rotate. Accordingly, a fine positioning process can be provided after a rough positioning process, thereby improving the accuracy of the angular position of the motor base.

[0013] Furthermore, the angular positioning device further comprises an alarm, and the first cylinder and the second cylinder are both provided with an in-position sensing switch communicating with the alarm, and the alarm is configured to sound an alarm when the corresponding in-position sensing switch sends a cylinder out-of-position signal during the operation of the first cylinder or the second cylinder. Accordingly, an error prevention function is provided, so that the mixing of different types of motor bases can be conveniently and effectively avoided.

[0014] Further, the pushing and centering device includes two first pushing components, which are arranged on opposite sides of the motor base; and / or the pushing and centering device includes two second pushing components, which are arranged on opposite sides of the motor base. Accordingly, the angular positioning device can be adapted to different types of motor bases.

[0015] Furthermore, during the operation of the push centering device, the plurality of self-centering claws are in the retracted position and the servo motor is powered off. Accordingly, the operation of the push centering device can be prevented from being affected by the torque of the servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0017] Figure 1 is a schematic three-dimensional diagram showing an angular positioning device of the present invention, wherein a motor base is placed on the angular positioning device;

[0018] Figure 2 yes Figure 1 A schematic perspective view of the angular positioning device shown with the motor base removed;

[0019] Figure 3 is a schematic stereogram showing the self-centering device of the utility model;

[0020] Figure 4 is a schematic three-dimensional diagram showing a first pushing component of the utility model; and

[0021] Figure 5 It is a schematic three-dimensional diagram showing the second pushing component of the utility model.

[0022] Reference numerals list

[0023] 100 Angular positioning equipment

[0024] 200 Motor base

[0025] 201 Ring body

[0026] 201a Base

[0027] 201b Heat dissipation ribs

[0028] 1 Self-centering device

[0029] 11 Install the base

[0030] 111 Bottom support disc

[0031] 112 Top support disc

[0032] 1121 claw receiving slot

[0033] 1122 Sub-support disc

[0034] 113 Support rod

[0035] 12 Self-centering cylinder

[0036] 13 Rotating coupling

[0037] 14 Servo Motor

[0038] 141 Motor shaft

[0039] More than 15 self-centering jaws

[0040] 16 Braking nut

[0041] 161 Top Screw

[0042] 2 Push centering device

[0043] 21 First push member

[0044] 211 First Cylinder

[0045] 212 Vertical Push Plate

[0046] 22 Second push member

[0047] 221 Second Cylinder

[0048] 222 Fork

[0049] 222a Tip part

[0050] H Through hole

[0051] L Central axis DETAILED DESCRIPTION

[0052] The following will be combined with the accompanying drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict. The nouns and pronouns about people in the utility model are not limited to specific genders.

[0053] In the following detailed description, reference is made to the accompanying drawings that form a part of this specification, in which specific embodiments in which the utility model can be implemented are shown by way of example. With respect to the accompanying drawings, directional terms such as "top", "bottom", "inside", "outside", "up", "down", "front", "back" and the like are used with reference to the directions of the accompanying drawings described. Since the components of the embodiments of the utility model can be placed in many different directions, the directional terms are only used for illustration and are not intended to be limiting. It should be understood that other embodiments may be used and that structural or logical changes may be made without departing from the scope of the utility model. Therefore, the following detailed description should not be understood as limiting, and the utility model is defined by the appended claims.

[0054] With reference to the accompanying drawings, the present invention proposes an angular positioning device 100 for a motor base 200. The motor base 200 has a substantially cylindrical shape and includes an annular body 201 having a first end and a second end opposite to each other in an axial direction.

[0055] The angular positioning device 100 of the present invention may include a self-centering device 1 for receiving a motor base 200 and rotating the motor base 200 to a specific angular position. It should be noted that the specific angular position mentioned in the present invention may be a certain angular position range, and therefore, the angular positioning function provided by the self-centering device 1 may be a coarse positioning function.

[0056] like Figure 3 As best shown, the self-centering device 1 may generally include a mounting base 11 , a self-centering cylinder 12 , a rotary coupling 13 , a servo motor 14 , and a plurality of self-centering jaws 15 .

[0057] The mounting base 11 may include a bottom support disc 111 , a top support disc 112 located above the bottom support disc 111 , and a plurality of support rods 113 connecting the bottom support disc 111 and the top support disc 112 , wherein the motor base 200 can be placed and held on the top support disc 112 .

[0058] The self-centering cylinder 12 can be fixed on the bottom support disc 111.

[0059] The rotary coupling 13 may be located below the bottom support disc 111 and connected to the self-centering cylinder 12 .

[0060] The servo motor 14 can be connected to the self-centering cylinder 12 via a rotating coupling 13 and is configured to drive the self-centering cylinder 12 and the mounting base 11 (and the motor base 200 held on the top support disk 112 of the mounting base 11) to rotate together to adjust the angular position of the motor base 200.

[0061] A plurality of self-centering claws 15 may be connected to the self-centering cylinder 12 and extend to the interior of the annular body 201 of the motor base 200. The plurality of self-centering claws 15 may be configured to be switchable between a stowed position and an open position. In the open position, the plurality of self-centering claws 15 abut against the inner wall of the annular body 201 of the motor base 200 to hold the motor base 200 in place, thereby enabling the motor base 200 to be rotated by the drive of the servo motor 14. In the stowed position, the plurality of self-centering claws 15 may be disengaged from the inner wall of the annular body 201 of the motor base 200, thereby allowing the motor base 200 to be picked up and placed by a robot.

[0062] In one embodiment, the self-centering device 1 may further include a sensor (not shown) configured to sense a feature disposed on the annular body 201 of the motor base 200 to determine that the motor base 200 is rotated to a specific angular position.

[0063] In particular, the characteristic part of the utility model may be two through holes H provided at the first end or the second end of the annular body 201, the two through holes H are arranged opposite to each other on the annular body 201 relative to the central axis L of the motor base 200, and the line between the two through holes H is perpendicular to the central axis L. Accordingly, the sensor may be a photoelectric sensor configured to emit light in a direction perpendicular to the central axis L, and when the motor base 200 rotates to a specific angular position, the light may pass through the two through holes H. Accordingly, the photoelectric sensor can determine whether the motor base 200 rotates to a specific angular position by sensing the change in the stroke of the light, wherein when the motor base 200 does not rotate to the specific angular position, the light is blocked by the annular body 201 of the motor base 200 and exhibits a short stroke, and when the motor base 200 rotates to the specific angular position, the light passes through the entire motor base 200 via the two through holes H, thereby exhibiting a long stroke.

[0064] Of course, the specific forms of the characteristic parts and sensors of the present invention are not limited thereto. For example, the characteristic part may also be a radio frequency identification tag, and accordingly, the sensor may sense or identify the radio frequency identification tag, wherein the sensor may identify the radio frequency identification tag when the motor base 200 rotates to a specific angular position.

[0065] In particular, the angular positioning device 100 may further include an alarm (not shown), which may communicate with the photoelectric sensor and is configured to sound an alarm when the photoelectric sensor does not detect the characteristic portion after the motor base 200 rotates more than 180 degrees. That is, in the above-mentioned embodiment with two through holes H, the photoelectric sensor will inevitably detect the characteristic portion after the motor base 200 rotates more than 180 degrees, and if the photoelectric sensor does not detect the characteristic portion, it means that the motor base 200 may be inverted, and at this time, it is necessary to inform the user through an alarm to correct the error.

[0066] In one embodiment, the top support disc 112 may include a plurality of claw receiving grooves 1121 opened in a radial direction, each claw receiving groove 1121 is used to receive a corresponding self-centering claw 15, wherein the self-centering claw 15 can be opened or retracted in the radial direction.

[0067] In one embodiment, the top support disc 112 may further include a plurality of sub-support discs 1122 stacked and concentrically arranged, wherein the diameters of the plurality of sub-support discs 1122 increase from top to bottom. In particular, in such a case, each claw receiving groove 1121 may pass through the plurality of sub-support discs 1122.

[0068] In one embodiment, the self-centering device 1 may further include a brake nut 16 disposed at the connection portion between the rotary coupling 13 and the motor shaft 141 of the servo motor 14, and a top screw 161 may be disposed in the brake nut 16 to abut against the motor shaft 141. In particular, thread glue may be applied to the top screw 161 to further prevent loosening.

[0069] In one embodiment, the angular positioning device 100 may further include a push centering device 2 for rotating the motor base 200 to a target angular position after the motor base 200 is rotated to a specific angular position by the self-centering device 1, thereby further providing precise positioning.

[0070] The pushing and centering device 2 can generally include a first pushing component 21 and a second pushing component 22 .

[0071] like Figure 4 As best shown, the first pushing member 21 may include a first cylinder 211 and an upright push plate 212 connected to each other.

[0072] The first pushing component 21 can be configured to be able to drive the upright push plate 212 to reciprocate in a first moving direction perpendicular to the central axis L of the motor base 200 by the first cylinder 211, so as to abut the base 201a set on the annular body 201 of the motor base 200 and push the motor base 200 to rotate.

[0073] The second pushing component 22 may include a second cylinder 221 and a fork-shaped member 222 connected to each other, and the second pushing component 22 is configured to be able to be driven by the second cylinder 221 to reciprocate the fork-shaped member 222 in a second moving direction perpendicular to the central axis L of the motor base 200, so that the tip portion 222a of the fork-shaped member 222 abuts against the heat dissipation rib 201b set on the annular body 201 of the motor base 200 and push the motor base 200 to rotate.

[0074] In particular, the first direction and the second direction may be parallel to each other or perpendicular to each other.

[0075] In particular, the first cylinder 211 and the second cylinder 221 may be provided with an in-position sensing switch that communicates with the aforementioned alarm, and the alarm is configured to issue an alarm when the corresponding in-position sensing switch issues a cylinder out-of-position signal during the operation of the first cylinder 211 or the second cylinder 221. Accordingly, it is possible to identify other types of motor bases that are mixed in, and inform the user through an alarm to correct the error.

[0076] In particular, the pushing and centering device 2 may include two first pushing components 21, which are arranged on opposite sides of the motor base 200; and / or the pushing and centering device 2 may include two second pushing components 22, which are arranged on opposite sides of the motor base 200.

[0077] In particular, during operation of the push centering device 2 , the plurality of self-centering jaws 15 are in the retracted position and the servomotor 14 is de-energized.

[0078] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An angular positioning device for a motor base, the motor base (200) having a cylindrical shape and comprising an annular body (201), the annular body (201) having a first end and a second end opposite to each other in an axial direction, the angular positioning device (100) comprising a self-centering device (1) for receiving the motor base (200) and rotating the motor base (200) to a specific angular position, characterized in that: The self-centering device (1) comprises: A mounting base (11), the mounting base (11) comprising a bottom supporting disc (111), a top supporting disc (112) located above the bottom supporting disc (111), and a plurality of supporting rods (113) connecting the bottom supporting disc (111) and the top supporting disc (112), the motor base (200) being capable of being placed on and retained on the top supporting disc (112); A self-centering cylinder (12), wherein the self-centering cylinder (12) is fixed on the bottom supporting disc (111); a rotary coupling (13), the rotary coupling (13) being located below the bottom support disc (111) and connected to the self-centering cylinder (12); a servo motor (14), the servo motor (14) being connected to the self-centering cylinder (12) via the rotary coupling (13) and being configured to drive the self-centering cylinder (12) and the mounting base (11) to rotate together to adjust the angular position of the motor base (200); and A plurality of self-centering claws (15), the plurality of self-centering claws (15) being connected to the self-centering cylinder (12) and extending to the interior of the annular body (201) of the motor base (200), and the plurality of self-centering claws (15) being configured to be switchable between a stowed position and an extended position, in which the plurality of self-centering claws (15) abut against the inner wall of the annular body (201) of the motor base (200) to hold the motor base (200) in place, and in the stowed position, the plurality of self-centering claws (15) are disengaged from the inner wall of the annular body (201) of the motor base (200).

2. The angular positioning device for a motor base according to claim 1, characterized in that: The self-centering device (1) further comprises a sensor configured to sense a feature portion provided on the annular body (201) of the motor base (200) to determine that the motor base (200) is rotated to the specific angular position.

3. The angular positioning device for a motor base according to claim 2, characterized in that: The characteristic part is two through holes (H) provided at the first end or the second end of the annular body (201), the two through holes (H) are arranged on the annular body (201) opposite to each other with respect to the central axis (L) of the motor base (200), and the connecting line between the two through holes (H) is perpendicular to the central axis (L), The sensor is a photoelectric sensor configured to emit light in a direction perpendicular to the central axis (L), and when the motor base (200) rotates to the specific angular position, the light passes through the two through holes (H).

4. The angular positioning device for a motor base according to claim 3, characterized in that: The angular positioning device (100) further includes an alarm, which is in communication with the photoelectric sensor and is configured to sound an alarm if the photoelectric sensor does not detect the feature after the motor base (200) rotates more than 180 degrees.

5. The angular positioning device for a motor base according to claim 1, characterized in that: The top supporting disc (112) comprises a plurality of claw receiving grooves (1121) opened in a radial direction, and each claw receiving groove (1121) is used to receive a corresponding self-centering claw (15).

6. The angular positioning device for a motor base according to claim 1, characterized in that: The top support disc (112) further comprises a plurality of sub-support discs (1122) stacked and concentrically arranged, wherein the diameters of the plurality of sub-support discs (1122) increase sequentially from top to bottom.

7. The angular positioning device for a motor base according to claim 1, characterized in that: The self-centering device (1) further comprises a brake nut (16) arranged at the connection portion between the rotary coupling (13) and the motor shaft (141) of the servo motor (14), and a top screw (161) is arranged in the brake nut (16) to abut against the motor shaft (141).

8. The angular positioning device for a motor base according to claim 1, characterized in that: The angular positioning device (100) further comprises a push centering device (2) for rotating the motor base (200) to a target angular position after the motor base (200) is rotated to the specific angular position by the self-centering device (1), and the push centering device (2) comprises: a first pushing component (21), the first pushing component (21) comprising a first cylinder (211) and an upright push plate (212) connected to each other, and the first pushing component (21) is configured to be able to drive the upright push plate (212) to reciprocate in a first moving direction perpendicular to the central axis (L) of the motor base (200) by the first cylinder (211), so as to abut against a foot (201a) provided on the annular body (201) of the motor base (200) and push the motor base (200) to rotate; and A second pushing component (22), the second pushing component (22) comprising a second cylinder (221) and a fork-shaped member (222) connected to each other, and the second pushing component (22) is configured to be able to be driven by the second cylinder (221) to reciprocate the fork-shaped member (222) in a second moving direction perpendicular to the central axis (L) of the motor base (200), so as to enable the tip portion (222a) of the fork-shaped member (222) to abut against a heat dissipation rib (201b) provided on the annular body (201) of the motor base (200) and to push the motor base (200) to rotate.

9. The angular positioning device for a motor base according to claim 8, characterized in that: The angular positioning device (100) further comprises an alarm, and the first cylinder (211) and the second cylinder (221) are both provided with an in-position sensing switch communicating with the alarm, and the alarm is configured to sound an alarm when the corresponding in-position sensing switch sends a cylinder out-of-position signal during the operation of the first cylinder (211) or the second cylinder (221).

10. The angular positioning device for a motor base according to claim 8, characterized in that: The pushing and centering device (2) comprises two first pushing components (21), and the two first pushing components (21) are arranged on opposite sides of the motor base (200); and / or The pushing and centering device (2) comprises two second pushing components (22), and the two second pushing components (22) are arranged on opposite sides of the motor base (200).

11. The angular positioning device for a motor base according to claim 8, characterized in that: During operation of the push-centering device (2), the plurality of self-centering claws (15) are in the retracted position and the servo motor (14) is de-energized.

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