CN209833828U - Displacement detection device and automobile assembling equipment - Google Patents

Abstract

The utility model discloses a displacement detection device and car equipment. The displacement detecting device includes: a drive assembly including a drive mechanism and a carriage driven by the drive mechanism to reciprocate; the driven assembly is arranged on the bearing piece so as to be driven by the bearing piece to move, and the driven assembly can also drive the bearing piece to move when being pushed by a moving object; and the detector is used for detecting the moving distance of the bearing piece driven by the driven component. The automobile assembling equipment comprises the displacement detection device. The utility model discloses a displacement detection device can confirm in real time the displacement distance of placing the component of for example the automobile body on moving object, this kind of displacement detection device's simple structure, with low costs. When being applied to the automobile assembling equipment, the displacement detection device can realize that the automobile body assembles related parts to the automobile body through the mechanical arm in the moving process, thereby improving the automobile assembling efficiency.

Description

Displacement detection device and automobile assembling equipment

Technical Field

The utility model belongs to the technical field of the assembly of automobile parts, concretely relates to displacement detection device and have this kind of displacement detection device's car equipment.

Background

In the assembly process of an automobile, it is necessary to assemble parts such as tires to a vehicle body.

An existing automobile part assembling mode is as follows: the body remains stationary and the associated parts are picked up by a human or robotic arm and assembled to the body.

However, this assembly method causes the vehicle body to stay still, so that the retention time of the vehicle body on the assembly line is too long, thereby reducing the manufacturing productivity of the automobile.

SUMMERY OF THE UTILITY MODEL

The utility model provides a displacement detection device and car equipment to solve the lower technical problem of car assembly efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme be: a displacement detecting device is provided. The displacement detecting device includes: a drive assembly including a drive mechanism and a carriage driven by the drive mechanism to reciprocate; the driven assembly is arranged on the bearing piece so as to be driven by the bearing piece to move, and the driven assembly can also drive the bearing piece to move when being pushed by a moving object; the detector is used for detecting the moving distance of the bearing piece driven by the driven component.

Optionally, the carrier is a synchronous belt, the detector is an encoder, the driving assembly further includes a first synchronous wheel and a second synchronous wheel, the first synchronous wheel and the second synchronous wheel are connected through the synchronous belt, and the encoder is connected with a supporting shaft of the first synchronous wheel; the encoder is used for detecting the rotation angle of the first synchronous wheel so as to determine the moving distance of the synchronous belt driven by the driven component.

Optionally, the driving mechanism is a motor, and a rotating end of the motor is connected to the first synchronizing wheel or the second synchronizing wheel and is configured to drive the first synchronizing wheel or the second synchronizing wheel to rotate; and the first synchronous wheel or the second synchronous wheel rotates to drive the synchronous belt to move.

Optionally, the drive mechanism is an electric cylinder or a linear motor.

Optionally, the displacement detecting device further comprises a blocking member disposed on a moving path of the driven assembly; the driven assembly comprises a mounting plate, the mounting plate is fixed on the bearing piece, a rotating arm and a force application component are mounted on the mounting plate, and the force application component applies acting force to a first end of the rotating arm to enable the rotating arm to pivot to a first position; in the first position, the second end of the rotating arm is abuttable against the moving object; when the driven assembly moves to the blocking piece, the blocking piece is engaged with the rotating arm to enable the rotating arm to pivot to the second position; in the second position, the rotating arm is disengaged from abutment with the moving object.

Optionally, the force applying component is a spring connected between the mounting plate and the first end of the rotating arm.

Optionally, a first roller is mounted at the second end of the rotating arm, and the first roller is used for abutting against the moving object.

Optionally, the carrier is a synchronous belt, the driving assembly further includes a first synchronous wheel and a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected through the synchronous belt; the driven assembly further comprises a synchronous belt pressing plate and a roller mounting plate, the mounting plate and the synchronous belt pressing plate clamp and fix the synchronous belt, the roller mounting plate is fixed on the synchronous belt, and second rollers are mounted on two sides of the synchronous belt in the moving direction; the drive assembly still includes the backup pad, the backup pad sets up the below of hold-in range is used for supporting hold-in range clamp plate with the hold-in range, the second gyro wheel with the side surface roll connection of backup pad.

Optionally, the blocking member is fixed to the support plate.

For solving the technical problem, the utility model discloses a another technical scheme is: an automobile assembling apparatus is provided. The automobile assembling apparatus includes: the displacement detecting device described above; a carrying tool for receiving a body of an automobile and moving along a first track as the moving object; and the following assembly comprises a moving plate and a manipulator arranged on the moving plate, and the moving plate is used for driving the manipulator to move along the second track. And a signal of the moving distance detected by the detector is transmitted to the follower assembly, and the follower assembly controls the manipulator to move so that the manipulator keeps stationary relative to the moving vehicle body.

Optionally, the handling tool is an automated guided vehicle.

Optionally, the second track is parallel to the first track.

Optionally, the traveling assembly further includes a driving motor, a gear and a rack, the driving motor is mounted on the moving plate, a rotating end of the driving motor is connected to the gear, the gear is engaged with the rack, and the rack is fixed relative to the second track.

Optionally, the driving motor is a servo motor or a stepping motor.

Optionally, the follower assembly further comprises a linear motor or an electric cylinder, and the linear motor or the electric cylinder is used for driving the moving plate to move along the second track.

The utility model has the advantages that: the embodiment of the utility model provides a driven subassembly through making to install on bearing the weight of can driving when receiving moving object and promoting bearing the weight of moves to detect the displacement distance that bears the weight of when being driven subassembly drives through the detector, thereby can confirm in real time the displacement distance of placing the component of for example the automobile body on moving object. The displacement detection device has simple structure and low cost. In addition, when the displacement detection device is applied to automobile assembly equipment, a detected moving distance signal can be transmitted to the follower assembly, so that the follower assembly can enable the manipulator mounted on the follower assembly to be relatively static with a moving automobile body according to the moving distance of the automobile body, and related parts can be assembled to the automobile body through the manipulator in the moving process of the automobile body. Correspondingly, because the utility model discloses the equipment of relevant spare part can be accomplished at the process that the automobile body removed to the automobile assembling equipment, has reduced the dwell time of automobile body on the assembly line, has consequently improved car assembly efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural diagram of a displacement detecting device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a driven assembly of the displacement sensing device of FIG. 1;

FIG. 3 is a schematic view of a blocking member of the displacement sensing device of FIG. 1;

fig. 4 is a schematic structural view of an automobile assembling apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of a portion of the construction of the follower assembly of the vehicle assembly device of FIG. 4;

FIG. 6 is an operational schematic view of the automotive assembly machine of FIG. 4 showing the handling tool moved into contact with the driven assembly;

FIG. 7 is a schematic operational view of the automotive assembly machine of FIG. 4 showing the driven assembly being moved into accelerated contact with the stop after assembly is complete;

FIG. 8 is an operational schematic diagram of the automobile assembly apparatus of FIG. 4 showing the stop pivoting the rotary arm of the follower assembly to a position below the carrier and the carrier continuing to move past the follower assembly and stop.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1, which is a schematic structural diagram of a displacement detecting device according to an embodiment of the present invention, wherein a carrying tool is also shown. The displacement sensing device 100 may include a driving assembly 10, a driven assembly 20, a detector 30, and a blocking member 40.

The carrier 200 is for receiving a body 300 of an automobile, and the carrier 200 may have a power unit 220 so that the carrier 200 can move along the first rail 210 under the driving of the power unit 220.

In one example, the drive assembly 10 may include a drive mechanism 11, a carrier 12 in the form of a timing belt, a first synchronizing wheel 13, a second synchronizing wheel 14, and a support plate 15. The carriage 12 is driven by the drive mechanism 11 to reciprocate. The first synchronizing wheel 13 and the second synchronizing wheel 14 are connected through the synchronous belt. The driving mechanism 11 may be a motor. The rotating end 111 of the motor can be connected with the first synchronous wheel 13 for driving the first synchronous wheel 13 to rotate. The rotation of the first timing pulley 13 drives the timing belt to move. Of course, the rotating end 111 of the motor can also be connected with the second synchronizing wheel 14 for driving the second synchronizing wheel 14 to rotate. The rotation of the second timing wheel 14 also drives the timing belt into motion.

In other examples, the driving mechanism 11 may also be an electric cylinder or a linear motor. Since the electric cylinder or the linear motor is a device for converting the rotational motion of the servo motor into the linear motion, the linear motion component of the electric cylinder or the linear motor can be connected to the carriage 12 to drive the carriage 12 to reciprocate.

The driven assembly 20 may be mounted on the carrier 12 for movement by the carrier 12. The driven assembly 20 can also drive the carrier 12 to move when being pushed by the moving carrying tool 200; accordingly, the movement of the carrier 12 will in turn cause the first synchronizing wheel 13 and the second synchronizing wheel 14 to rotate. The carrier 12 may be in other forms than a timing belt as long as it can carry the driven assembly 20 for reciprocating motion. For example, the carrier 12 may be a rigid bar that is engaged with the driving mechanism 11 through an engaging structure so as to be capable of reciprocating under the driving of the driving mechanism 11.

As shown in fig. 2, in one example, the driven assembly 20 may include a mounting plate 21, a rotating arm 22, a force application member 23, a timing belt press plate 24, and a roller mounting plate 25. The mounting plate 21 may be fixed to the carrier 12, and the rotating arm 22 and the force application member 23 are mounted on the mounting plate 21. The force applying member 23 can apply a force to the first end 221 of the rotating arm 22 to pivot the rotating arm 22 to the first position, which is a position that the second end 222 of the rotating arm 22 is raised. In the first position, the second end 222 of the swivel arm 22 is capable of abutting the handling tool 200. The force application member 23 may be a spring that may be connected between the mounting plate 21 and the first end 221 of the rotating arm 22 to apply a tensile force between the mounting plate 21 and the first end 221. Of course, the force application member 23 may have other structures as long as it can apply a pulling force and/or a pressing force to the rotating arm 22 to keep the second end 222 of the rotating arm 22 at a position that tends to be lifted. The second end 222 of the rotating arm 22 may also be mounted with a first roller 223, the first roller 223 being configured to roll against the handling tool 200. It will be readily appreciated that the rolling contact of the first roller 223 with the transfer tool 200 may allow the first roller 223 to roll up and down along the transfer tool 200, thereby reducing friction and damage between components.

Further, the synchronous belt can be clamped and fixed by the mounting plate 21 and the synchronous belt pressing plate 24. Since the inner side of the timing belt generally has teeth to be engaged with the first and second synchronizing wheels 13 and 14, the upper surface of the timing belt pressing plate 24 may also be provided with teeth to be matched with the teeth so as to be firmly coupled and fixed with the timing belt. The roller mounting plate 25 may be fixed to the timing belt or the timing belt pressing plate 24 and second rollers 251 are installed on both sides of the timing belt in the moving direction, and the second rollers 251 may be connected to the side surfaces of the supporting plate 15 in a rolling manner to make the movement of the timing belt stable. For example, one second roller 251 may be installed at each of four corner positions of the front, rear, left, and right of the roller installation plate 25 (i.e., four second rollers 251 are installed in total) to make the movement of the timing belt more stable. The supporting plate 15 may be disposed below the timing belt to support the timing belt pressing plate 24, the roller mounting plate 25 and/or the timing belt, so as to prevent the timing belt from sagging under its own weight and the influence of the weight of the driven assembly 20 mounted thereon and being difficult to move along a straight line. Since the timing belt is endless, the term "support plate 15 is disposed below the timing belt" as used herein may actually mean that the support plate 15 is within the loop enclosed by the timing belt and below the top timing belt segment to support the top timing belt segment.

As shown in fig. 1, the detector 30 is used to detect the moving distance of the carrier 12 driven by the driven assembly 20. Since the carrier 12 is moved by the driven assembly 20, the moving distance also represents the moving distance of the vehicle body 300, the carrier 200 and the driven assembly 20, since the carrier 200 is also in abutting contact with the driven assembly 20. In one example, the detector 30 may be an encoder. The encoder may be coupled with the supporting shaft 131 of the first synchronous pulley 13. The encoder is used for detecting the rotation angle of the first synchronous wheel 13 so as to determine the moving distance of the synchronous belt when the synchronous belt is driven by the driven assembly 20. In this example, the detector 30 in the form of an encoder detects the distance of movement of the carrier 12 when carried by the driven assembly 20 in an indirect manner. In other examples, the detector 30 may also directly detect such a movement distance; for example, a distance measuring sensor such as an ultrasonic distance measuring sensor, a laser distance measuring sensor, an infrared distance measuring sensor, etc. may be used to detect the moving distance of the carrier 12 after the carrier 200 is in contact with the driven assembly 20.

As shown in fig. 1 and 3, the blocking member 40 may be disposed on a moving path of the driven assembly 20, for example, at a position near the second synchronizing wheel 14 and higher in height than the carrier 12. Thus, when the follower assembly 20 moves to the stop member 40, the stop member 40 can engage the pivot arm 22 to pivot the pivot arm 22 to the second position, which is generally the position that lowers the second end 222 of the pivot arm 22. In the second position, the swivel arm 22 is out of abutment with the handling tool 200. The blocking member 40 may be fixed to the support plate 15 or a fixed structure for mounting the displacement sensing device 100.

Please refer to fig. 4, which is a schematic structural diagram of an automobile assembling apparatus according to an embodiment of the present invention. The automobile assembling apparatus 500 may include the follower assembly 400, the displacement detecting device 100 and the carrying tool 200. In one example, the Vehicle 200 may be an Automated Guided Vehicle (AGV).

The follower assembly 400 may include a moving plate 410 and a robot 420 mounted on the moving plate 410, wherein the moving plate 410 is configured to move the robot 420 along a second track 430. The second rail 430 may be parallel to the first rail 210 of the handling tool 200.

As also shown in fig. 5, in one example, the follower assembly 400 can further include a drive motor 440, a gear 450, and a rack 460. The driving motor 440 may be a servo motor or a stepping motor, and may be installed on the moving plate 410, and the rotating end 441 of the driving motor 440 is connected to the gear 450, and the gear 450 is engaged with the rack 460. The rack 460 is fixed relative to the second rail 430; for example, both the second rail 430 and the rack gear 460 may be mounted on the frame 470 of the follower assembly 400, or the rack gear 460 may be fixed on the second rail 430. Since the second rails 430 are generally two parallel to each other, the rack gear 460 may be fixed to one of the second rails 430.

In another example, the follower assembly 400 may employ a linear motor or an electric cylinder to drive the moving plate 410 to move along the second rail 430.

The detector 30 of the displacement detecting device 100 is used for detecting the moving distance of the timing belt carried by the carrier 200 during the contact with the driven assembly 20. The distance of movement signal may be communicated to the follower assembly 400, and the follower assembly 400 may control the robot 420 to move in response to the distance of movement signal such that the robot 420 remains stationary relative to the moving body 300. The drive mechanism 11, the detector 30, the drive motor 440, etc. may be connected to one or more control devices, such that the control devices receive and analyze signals detected by the detector 30 and control the rotation of the drive mechanism 11 and the drive motor 440 accordingly.

Referring to fig. 4 and 6 to 8, an operation process of the automobile assembling apparatus 500 according to the embodiment of the present invention is briefly described as follows.

First, the carrier 200 carrying the vehicle body 300 is moved toward the driven assembly 20 along the set first rail 210. At this time, the driven assembly 20 may be located away from the blocking member 40.

Second, as shown in FIG. 6, the carrier tool 200 is moved into contact with the driven assembly 20. At this time, the carrying tool 200 is pressed against the roller 223 on the rotating arm 22. Thereupon, the carrier 200 drives the driven assembly 20 and the timing belt 12. Along with the movement of the synchronous belt 12, the supporting shaft 131 connected to the synchronous belt is also driven to rotate, so that the encoder 30 senses the rotation angle of the synchronous wheel 13, and further the movement distance of the synchronous belt 12 can be calculated, and a signal of the movement distance is transmitted to the follower assembly 400, so that the movement distance between the manipulator 420 on the follower assembly 400 and the vehicle body is the same (wherein, a manner that the manipulator 420 is driven to move by the moving plate 410 on the follower assembly 400, or a manner that the manipulator 420 is fixed and the manipulator 420 moves through its own structure can be adopted), so that the manipulator 420 on the follower device and the moving vehicle body 300 are relatively stationary. At this stage, the assembly of the automobile parts on the body 300 may be performed by the robot 420.

Thirdly, as shown in fig. 7, after the vehicle body 300 is assembled, the driving unit 10 of the displacement detecting device 100 drives the first synchronizing wheel 13 to rotate through the driving mechanism 11, the first synchronizing wheel 13 simultaneously drives the timing belt to move, the timing belt drives the driven unit 20 to move in an accelerated manner, the moving speed of the driven unit 20 exceeds the moving speed of the carrying tool 200, and the carrying tool 200 no longer contacts the driven unit 20. As the follower assembly 20 moves, the rotating arm 22 of the follower assembly 20 begins to contact the stop 40.

Fourthly, as shown in fig. 8, when the driven assembly 20 moves to the stopping member 40 and continues to move, the stopping member 40 drives the rotating arm 22 to swing downward, so that the rotating arm 22 rotates to a position below the carrying tool 200, and at this time, the driven assembly 20 stops moving, and the carrying tool 200 can continue to move with the vehicle body 300 which is completely assembled. In addition, during this time, the moving plate 410 may return to the home position with the robot 420.

Fifth, when the carrier 200 passes over the driven assembly 20, the driving mechanism 11 of the displacement detecting device 100 is driven in the opposite direction, so as to drive the driven assembly 20 to move back to the original point. At the start of this return operation, as the pivot arm 22 comes out of contact with the stopper 40, the pivot arm 22 pivots to the initial position by the biasing member 23.

In summary, it is easily understood by those skilled in the art that the embodiment of the present invention can drive the carrier to move when the driven component installed on the carrier is pushed by the moving object, and detect the moving distance of the carrier driven by the driven component through the detector, so as to determine the moving distance of the component, such as the vehicle body, placed on the moving object in real time. The displacement detection device has simple structure and low cost. In addition, when the displacement detection device is applied to automobile assembly equipment, a detected moving distance signal can be transmitted to the follower assembly, so that the follower assembly can enable the manipulator mounted on the follower assembly to be relatively static with a moving automobile body according to the moving distance of the automobile body, and related parts can be assembled to the automobile body through the manipulator in the moving process of the automobile body. Correspondingly, because the utility model discloses the equipment of relevant spare part can be accomplished at the process that the automobile body removed to the automobile assembling equipment, has reduced the dwell time of automobile body on the assembly line, has consequently improved car assembly efficiency.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (15)

1. A displacement detecting device, characterized in that the displacement detecting device comprises:

a drive assembly including a drive mechanism and a carriage driven by the drive mechanism to reciprocate;

the driven assembly is arranged on the bearing piece so as to be driven by the bearing piece to move, and the driven assembly can also drive the bearing piece to move when being pushed by a moving object; and

the detector is used for detecting the moving distance of the bearing piece driven by the driven component.

2. The displacement detecting device of claim 1, wherein the carrier is a timing belt, the detector is an encoder, the driving assembly further comprises a first timing wheel and a second timing wheel, the first timing wheel and the second timing wheel are connected through the timing belt, and the encoder is connected with a supporting shaft of the first timing wheel; the encoder is used for detecting the rotation angle of the first synchronous wheel so as to determine the moving distance of the synchronous belt driven by the driven component.

3. The displacement detecting device according to claim 2, wherein the driving mechanism is a motor, and a rotating end of the motor is connected to the first synchronizing wheel or the second synchronizing wheel for driving the first synchronizing wheel or the second synchronizing wheel to rotate; and the first synchronous wheel or the second synchronous wheel rotates to drive the synchronous belt to move.

4. The displacement sensing device of claim 1, wherein the drive mechanism is an electric cylinder or a linear motor.

5. The displacement sensing device of claim 1, further comprising a stop disposed in a path of movement of the driven assembly; the driven assembly comprises a mounting plate, the mounting plate is fixed on the bearing piece, a rotating arm and a force application component are mounted on the mounting plate, and the force application component applies acting force to a first end of the rotating arm to enable the rotating arm to pivot to a first position; in the first position, the second end of the rotating arm is abuttable against the moving object; when the driven assembly moves to the blocking piece, the blocking piece is engaged with the rotating arm to enable the rotating arm to pivot to the second position; in the second position, the rotating arm is disengaged from abutment with the moving object.

6. The displacement sensing device of claim 5, wherein the force applying component is a spring coupled between the mounting plate and the first end of the rotating arm.

7. The displacement detecting device according to claim 5 or 6, wherein a first roller is mounted to the second end of the rotating arm, the first roller being configured to abut against the moving object.

8. The displacement detecting device according to claim 5 or 6, wherein the carrier is a timing belt, the driving assembly further comprises a first timing wheel and a second timing wheel, and the first timing wheel and the second timing wheel are connected through the timing belt; the driven assembly further comprises a synchronous belt pressing plate and a roller mounting plate, the mounting plate and the synchronous belt pressing plate clamp and fix the synchronous belt, the roller mounting plate is fixed on the synchronous belt, and second rollers are mounted on two sides of the synchronous belt in the moving direction; the drive assembly still includes the backup pad, the backup pad sets up the below of hold-in range is used for supporting hold-in range clamp plate with the hold-in range, the second gyro wheel with the side surface roll connection of backup pad.

9. The displacement sensing device of claim 8, wherein the stop is fixed to the support plate.

10. An automobile assembling apparatus, characterized by comprising:

a displacement detection device according to any one of claims 1-9;

a carrying tool for receiving a body of an automobile and moving along a first track as the moving object; and

the following assembly comprises a moving plate and a manipulator arranged on the moving plate, and the moving plate is used for driving the manipulator to move along a second track;

and the signal of the moving distance detected by the detector is transmitted to the follower assembly, and the follower assembly controls the manipulator to move so that the manipulator keeps still relative to the moving vehicle body.

11. The automobile assembly device of claim 10, wherein the handling tool is an automated guided vehicle.

12. The vehicle assembly apparatus of claim 10, wherein the second rail is parallel to the first rail.

13. The vehicle assembly apparatus of claim 10, wherein the follower assembly further comprises a drive motor, a gear and a rack, the drive motor being mounted on the moving plate, a rotating end of the drive motor being coupled to the gear, the gear being engaged with the rack, the rack being fixed relative to the second track.

14. The vehicle assembly apparatus of claim 13, wherein the drive motor is a servo motor or a stepper motor.

15. The vehicle assembly apparatus of claim 10, wherein the follower assembly further comprises a linear motor or an electric cylinder for driving the moving plate to move along the second track.