CN114952213A

CN114952213A - Detection device for detecting position of rotating shaft and automatic box door assembly device

Info

Publication number: CN114952213A
Application number: CN202110192074.XA
Authority: CN
Inventors: 唐清; 彭践; 黎征山; 赵科云; 谭曼华; 曾强
Original assignee: Bosch Automotive Products Changsha Co Ltd
Current assignee: Bosch Automotive Products Changsha Co Ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2022-08-30

Abstract

The invention relates to a detection device for detecting the position of a rotating shaft and an automatic box door assembling device. The detection device includes: a base; the detection head comprises a centering mechanism and a detection seat, the centering mechanism is positioned on the detection seat, the detection seat is arranged on the base in a sliding mode in the X direction and the Y direction relative to the base, the centering mechanism is provided with a matching part, and the matching part is matched with the rotating shaft to determine the relative position of the axis of the rotating shaft and the detection seat; an X-direction sensor for detecting a position parameter of the detection seat relative to the base in an X direction; and a Y-direction sensor for detecting a positional parameter of the detection base relative to the base in a Y-direction.

Description

Detection device for detecting position of rotating shaft and automatic box door assembly device

Technical Field

The invention relates to the field of household appliances, in particular to a detection device for detecting the position of a rotating shaft and an automatic box door assembling device.

Background

The doors of modern household appliances, such as refrigerators, are relatively bulky. At present, a hand tool door is generally adopted in the industry of white appliances, particularly the industry of refrigerators. The hand-mounted door is high in labor intensity, and in the door mounting process, due to the fact that the rotating shaft and the hole cannot be seen by eyes of an operator, the door is difficult to align to the rotating shaft through the hole of the door. Therefore, the need for automatic door installation is becoming more urgent, and the automatic door installation is premised on the ability to obtain accurate position data of the rotating shaft of the cabinet. However, since the position tolerance of the door rotating shaft on the refrigerator body is large, it is difficult for the automatic door assembling device to directly mount the door on the rotating shaft.

Therefore, it is necessary to design a detecting device for detecting the position of the rotating shaft, which can accurately find the position of the rotating shaft of the box body, so that the automatic assembling device for the box door can automatically assemble the box door on the box body according to the position data of the rotating shaft.

Disclosure of Invention

The present invention aims to solve or alleviate to some extent the technical problems set out above.

According to a first aspect of the present invention, there is provided a detection apparatus for detecting a position of a rotating shaft, the detection apparatus comprising:

a base;

the detection head comprises a centering mechanism and a detection seat, the centering mechanism is positioned on the detection seat, the detection seat is arranged on the base in a sliding mode in the X direction and the Y direction relative to the base, the centering mechanism is provided with a matching part, and the matching part is matched with the rotating shaft to determine the relative position of the axis of the rotating shaft and the detection seat;

an X-direction sensor for detecting a position parameter of the detection seat relative to the base in an X direction; and

and the Y-direction sensor is used for detecting the position parameter of the detection seat relative to the base in the Y direction.

Optionally, in the detection apparatus as described above, the detection apparatus further includes an intermediate bracket, a first sliding mechanism is installed between the detection seat and the intermediate bracket to limit the detection seat to be slidable along the X direction relative to the intermediate bracket, and a second sliding mechanism is installed between the intermediate bracket and the base to limit the intermediate bracket to be slidable along the Y direction relative to the base; the X-direction sensor comprises a first probe for detecting the displacement of the detection seat relative to the middle bracket, and the Y-direction sensor comprises a second probe for detecting the displacement of the middle bracket relative to the base.

Optionally, in the detection apparatus as described above, the first sliding mechanism and the second sliding mechanism include a guide rail or a guide rod.

Alternatively, in the detection device as described above, the centering mechanism includes a first clamping member and a second clamping member that contact the rotating shaft, wherein the first clamping member and the second clamping member are disposed to be bilaterally symmetrical.

Optionally, in the detection apparatus as described above, the driver of the detection head is a pneumatic or electric driven driver.

Alternatively, in the detection apparatus as described above, the Y-direction sensor is fixed to the intermediate bracket by a bolt, and the X-direction sensor is fixed to the base by a bolt.

Alternatively, in the detection apparatus as described above, an axial direction of the rotation shaft is perpendicular to a plane formed by the X direction and the Y direction.

Optionally, in the detection apparatus as described above, the detection apparatus further comprises a pneumatic or electric driver for pushing the base along the rail to the detection position.

According to a second aspect of the present invention, there is provided an automatic box door assembling device, which includes the above-mentioned detection device.

Optionally, in the automatic door assembling device as described above, the automatic door assembling device further includes a door pick-and-place device and a controller.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are for illustrative purposes only and are not intended to constitute a limitation on the scope of the present invention. Moreover, in the drawings, like numerals are used to indicate like parts, and in which:

fig. 1 exemplarily shows a configuration of a detecting device for detecting a position of a rotation shaft according to the present disclosure.

Fig. 2 schematically illustrates a door automatic assembly apparatus according to the present disclosure.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. First, it should be noted that the directional terms such as upper, lower, left, right, front, rear, inner, outer, top, bottom, etc., which are mentioned or may be mentioned in the present specification, are defined with respect to the configurations shown in the respective drawings, and they are relative concepts, and thus may be changed according to the positions and the use states thereof. Therefore, these and other directional terms should not be construed as limiting terms.

As known to those skilled in the art, a refrigerator generally includes a cabinet 100 in which a storage chamber is provided, and a door (not shown) for opening or closing the storage chamber. The door is connected to the cabinet 100 at one side in the width direction of the refrigerator through a rotating shaft 110, and can rotate relative to the cabinet to perform an opening or closing action, wherein the rotating shaft 110 may include a bushing or a pin cooperating with the bushing. In the assembly process of the refrigerator, it is required to automatically mount the door at the cabinet 100 of the refrigerator, and to fit or insert the bushing or pin shaft at one lateral end side of the door into the pin shaft or bushing at the corresponding lateral end side of the cabinet. In order to realize the automatic assembly of the door, it is necessary to detect a position parameter of the rotation shaft 110 of the cabinet 100.

Fig. 1 is a schematic configuration diagram showing a detecting apparatus for detecting a position of a rotating shaft according to the present disclosure. Referring to fig. 1, a detection device 200 for detecting the position of the rotation shaft includes a detection head 210, an X-direction sensor 230, a Y-direction sensor 240, a base 260, and the like. The test head 210 includes a centering mechanism 220 and a test seat, the centering mechanism 220 being positioned at the test seat. The detecting base is installed on the base 260 in a manner of being capable of sliding in the X direction and the Y direction with respect to the base 260, and the centering mechanism 220 has an engaging portion that determines a relative position between the axis of the rotating shaft and the detecting base when the engaging portion is engaged with the rotating shaft. The X-direction sensor 230 is used for detecting a position parameter of the detection seat relative to the base 260 in the X direction. The Y-direction sensor 240 is used for detecting a position parameter of the detection seat relative to the base 260 in the Y direction.

The detecting apparatus 200 for detecting the position of the rotating shaft according to the present invention uses the centering mechanism 220 of the detecting head 210 to adaptively find the position of the rotating shaft 110 of the casing 100, detects the position data of the rotating shaft 110 by the X-direction sensor 230 and the Y-direction sensor 240 and transmits the position data to the automatic door assembling apparatus, and then the automatic door assembling apparatus performs automatic door loading according to the position value of the rotating shaft. Therefore, the detection device can accurately measure the position parameters of the box rotating shaft in the X direction and the position parameters of the box rotating shaft in the Y direction, and is very beneficial to the subsequent door installing operation.

Here, it should be noted that the axial direction of the rotation shaft is substantially perpendicular to the plane formed by the X direction and the Y direction. For example, the orientations "X direction" and "Y direction" may be a longitudinal direction or a width direction of the cabinet 100 of the refrigerator. If the orientation "X direction" refers to a length direction of the cabinet 100 of the refrigerator and the orientation "Y direction" refers to a width direction of the cabinet 100, the axial direction of the rotation shaft may be a height direction or a vertical direction of the refrigerator.

In some embodiments of the present invention, the detecting device 200 further comprises an intermediate bracket 250, and a first sliding mechanism 270 is installed between the detecting seat and the intermediate bracket 250, so as to limit the detecting seat to be slidable along the X direction relative to the intermediate bracket 250. Further, a second sliding mechanism 280 is installed between the intermediate bracket 250 and the base 260, thereby limiting the intermediate bracket 250 to be slidable in the Y direction with respect to the base 260. The X-direction sensor 230 includes a first probe for detecting a displacement of the detection holder with respect to the intermediate holder 250, and the Y-direction sensor 240 includes a second probe for detecting a displacement of the intermediate holder 250 with respect to the base 260. Optionally, the first sliding mechanism 270 and the second sliding mechanism 280 comprise a guide rail or a guide rod.

In some embodiments of the present invention, the centering mechanism 220 includes a first clamping member 221 and a second clamping member 222 contacting the rotating shaft 110, wherein the first clamping member 221 and the second clamping member 222 are disposed in bilateral symmetry so as to clamp the rotating shaft 110 of the box 100 from both sides in a manner of being slidable in the X direction and the Y direction, thereby determining the relative position of the axis center of the rotating shaft 110 and the detection seat. Of course, those skilled in the art will recognize that the first clamping member 221 and the second clamping member 222 may be designed in a non-bilateral symmetrical manner or a substantially bilateral symmetrical structure. Furthermore, it will be appreciated that it is also possible for the centering mechanism to be designed as a V-shaped portion with a centering function.

In some embodiments of the present invention, the Y-direction sensor 240 may be fixed to the middle bracket 250 by bolts, and the X-direction sensor 230 may be fixed to the base 260 by bolts, thereby preventing the X-direction sensor 230 and the Y-direction sensor 240 from interfering with each other in spatial positions.

In some embodiments of the present invention, the detection device 200 for detecting the position of the spindle further comprises a pneumatic or electric drive 290 for pushing the base 260 of the detection device 200 along a rail (not shown) to a detection position.

Fig. 2 shows a schematic view of the automatic door assembling apparatus according to the present invention. As shown in fig. 2, the automatic door assembling apparatus includes a detecting device 200, a controller 400, and a door pick-and-place device 600. In the inspection position shown in fig. 1, the housing 100 is clamped by the clamp 300, and the centering mechanism 220 of the inspection head 210 adaptively finds the position of the rotating shaft 110 of the housing 100, so as to measure the position parameter of the rotating shaft 110 in the X direction by the X-direction sensor 230 and the position parameter of the rotating shaft 110 in the Y direction by the Y-direction sensor 240. The X-direction sensor 230 and the Y-direction sensor 240 transmit the position parameters of the rotation shaft 110 in the X-direction and the Y-direction, respectively, to the controller 400 of the door auto-assembling apparatus. When the controller 400 of the automatic door assembling apparatus transmits the positions of the rotation shaft in the X direction and the Y direction to the door pick-and-place apparatus 600, the door pick-and-place apparatus 600 may mount the door to the cabinet 100 of the refrigerator according to the position of the rotation shaft, so that the automatic door assembly may be realized.

In summary, the detection device for detecting the position of the rotating shaft according to the embodiment of the invention can accurately measure the position data of the rotating shaft of the box body, and is very beneficial to the operation of automatic door installation.

The detection device for detecting the position of the rotating shaft and the automatic door assembling device of the present invention have been described in detail by way of the embodiments, and these examples are provided only for illustrating the principles of the present invention and the embodiments thereof, and not for limiting the present invention. For example, in the detection device of the present invention, the driver 211 of the detection head is a pneumatic or electric driver. Accordingly, all equivalents are intended to be included within the scope of this invention and defined in the claims which follow.

Claims

1. Detection device (200) for detecting the position of a rotating shaft, characterized in that the detection device (200) comprises:

a base (260);

the detection head (210) comprises a centering mechanism (220) and a detection seat, the centering mechanism (220) is positioned on the detection seat, the detection seat is installed on the base (260) in a manner of sliding in the X direction and the Y direction relative to the base (260), the centering mechanism (220) is provided with a matching part, and the matching part is matched with the rotating shaft to determine the relative position of the axis of the rotating shaft and the detection seat;

an X-direction sensor (230) for detecting a positional parameter of the detection base with respect to the base (260) in an X-direction; and

a Y-direction sensor (240) for detecting a positional parameter of the detection base relative to the base (260) in a Y-direction.

2. The detection apparatus (200) according to claim 1, wherein the detection apparatus (200) further comprises an intermediate bracket (250), a first sliding mechanism (270) is installed between the detection seat and the intermediate bracket (250) to limit the detection seat to be slidable along the X direction relative to the intermediate bracket (250), and a second sliding mechanism (280) is installed between the intermediate bracket (250) and the base (260) to limit the intermediate bracket (250) to be slidable along the Y direction relative to the base (260); the X-direction sensor (230) includes a first probe that detects displacement of the detection holder with respect to the intermediate bracket (250), and the Y-direction sensor (240) includes a second probe that detects displacement of the intermediate bracket (250) with respect to the base (260).

3. The detection apparatus (200) of claim 2, wherein the first sliding mechanism (270) and the second sliding mechanism (280) comprise a guide rail or a guide rod.

4. The detecting device (200) according to claim 2 or 3, characterized in that the centering mechanism (220) comprises a first clamping member (221) and a second clamping member (222) contacting the rotating shaft (110), wherein the first clamping member (221) and the second clamping member (222) are arranged in bilateral symmetry.

5. The detection device (200) according to claim 2 or 3, wherein the driver (211) of the detection head (210) is a pneumatic or electric driven driver.

6. The detection device (200) according to claim 2 or 3, wherein the Y-direction sensor (240) is fixed to the intermediate bracket (250) by bolts, and the X-direction sensor (230) is fixed to the base (260) by bolts.

7. A testing device (200) according to claim 2 or 3, wherein the axis of the spindle is perpendicular to the plane formed by the X-direction and the Y-direction.

8. A detection device (200) according to claim 2 or 3, characterized in that the detection device (200) further comprises a pneumatic or electric drive (290) for pushing the base (260) along a track to a detection position.

9. Automatic door assembly device, characterized in that it comprises a detection device (200) according to any one of claims 1 to 8.

10. The automated door assembly device according to claim 9, further comprising a door pick-and-place device (600) and a controller (400).