CN217213203U

CN217213203U - A position detection mechanism that falls for assembly line

Info

Publication number: CN217213203U
Application number: CN202220674514.5U
Authority: CN
Inventors: 王宝胜
Original assignee: Chengde Huayuan Automation Equipment Co ltd
Current assignee: Chengde Huayuan Automation Equipment Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-08-16
Anticipated expiration: 2032-03-25

Abstract

The embodiment of the utility model provides a position detection mechanism for an assembly line, which comprises an installation bracket, a travel switch and a trigger device; the mounting bracket comprises a vertical plate and a transverse plate vertically connected to the top of the vertical plate; the travel switch is fixedly connected with the vertical plate; the transverse plate is provided with a through hole; the trigger device is movably connected with the transverse plate and can move up and down along the axis of the through hole; the trigger mechanism on the travel switch is positioned in the movable range of the trigger device. The position-falling detection mechanism of the technical scheme adopts a mechanical mode to trigger the travel switch, so that a trigger signal is given to the control system, the work is reliable, the anti-interference performance is strong, and the stable operation of production can be effectively ensured.

Description

A position detection mechanism that falls for assembly line

Technical Field

The utility model relates to a technical field is carried to the material, especially relates to a position detection mechanism that falls for assembly line.

Background

In the case of an automobile assembly line, it is often necessary to convey a material, and when a material or a workpiece transferred from an upstream process is received at a certain station, it is necessary to confirm that the workpiece has reached a set position (drop position) by a detection device and then perform a corresponding operation (for example, to suspend conveyance of the workpiece and perform an assembly operation at the current station). Therefore, whether the workpiece on the conveying line is located or not is accurately detected, and the method has important significance in production. At present, photoelectric sensors are generally adopted on a conveying line to detect the position of a workpiece, and when the workpiece moves to a preset position, the sensors can send signals to a control system to confirm that the workpiece is positioned.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art:

the existing photoelectric sensor is easy to generate misjudgment due to the fact that light rays are easily shielded by sundries and influenced by interference light rays and the like, the reliability is poor, and the normal operation of production work is influenced. Therefore, how to realize a landing detection mechanism with high reliability is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a position detection mechanism that falls for assembly line to solve the not high problem of photoelectric type position detection mechanism reliability among the prior art.

In order to achieve the above object, an embodiment of the present invention provides a drop detection mechanism for an assembly line, including a mounting bracket, a travel switch and a trigger device; the mounting bracket comprises a vertical plate and a transverse plate vertically connected to the top of the vertical plate; the travel switch is fixedly connected with the vertical plate; the transverse plate is provided with a through hole; the trigger device is movably connected with the transverse plate and can move up and down along the axis of the through hole; the trigger mechanism on the travel switch is positioned in the movable range of the trigger device.

Furthermore, the trigger device comprises a vertical guide shaft, an upper pressure plate fixedly connected to the top end of the guide shaft and a trigger plate connected to the bottom end of the guide shaft; the cross-sectional area of the upper pressure plate and the cross-sectional area of the trigger plate are both larger than the cross-sectional area of the guide shaft.

Furthermore, a guide sleeve coaxial with the through hole is arranged on the transverse plate; the inner diameter of the guide sleeve is matched with the outer diameter of the guide shaft.

Furthermore, the falling position detection mechanism also comprises a spring sleeved outside the guide shaft; the spring is located between top board and the diaphragm.

Furthermore, two through holes are formed in the transverse plate; the triggering device comprises two mutually parallel guide shafts.

Furthermore, a trigger mechanism of the travel switch is a swing rod; the travel switch is horizontally arranged on the dismounting side of the trigger device; one end of the swing rod, which is far away from the travel switch, is positioned below the trigger plate.

Furthermore, one end of the swing rod, which is far away from the travel switch, is provided with a roller.

Furthermore, the swing range of the swing rod is 0-90 DEG

Furthermore, a sliding groove arranged along the length direction is arranged on the swing rod.

Furthermore, an oblong mounting hole is formed in the vertical plate.

The technical scheme has the following beneficial effects:

according to the falling position detection mechanism, after the workpiece is received, the workpiece presses down the trigger device, and the trigger device pushes the trigger mechanism of the travel switch, so that the travel switch outputs an electric signal to the control system, and the whole mechanism operates in a mechanical mode. The device is free from interference of sundries and irrelevant light, has extremely high reliability, and effectively ensures continuous and stable operation of production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described 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 according to these drawings without creative efforts.

FIG. 1 is a front view of a landing detection mechanism for an assembly line according to an embodiment of the present invention;

fig. 2 is a left side view of a landing detection mechanism for an assembly line according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a landing detection mechanism for an assembly line according to an embodiment of the present invention;

reference numerals: 1. mounting a bracket; 11. a vertical plate; 12. a transverse plate; 2. a travel switch; 21. a swing rod; 22. a chute; 3. a trigger device; 31. a guide shaft; 32. a trigger plate; 33. an upper pressure plate; 4. a guide sleeve; 5. a spring; 6. a work table; 7. a workpiece; 8. and (7) installing holes.

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 work belong to the protection scope of the present invention.

As shown in fig. 1, 2, and 3, an embodiment of the present invention provides a drop position detection mechanism for an assembly line, including a mounting bracket 1, a travel switch 2, and a trigger device 3; the mounting bracket 1 comprises a vertical plate 11 and a horizontal plate 12 vertically connected to the top of the vertical plate 11; the travel switch 2 is fixedly connected with the vertical plate 11; the transverse plate 12 is provided with a through hole; the trigger device 3 is movably connected with the transverse plate 12, and the trigger device 3 can move up and down along the axis of the through hole; the trigger mechanism on the travel switch (2) is positioned in the movable range of the trigger device (3).

In order to avoid the problem that photoelectric type detection mechanism that falls to existing technology exists easily disturbed, poor stability, this application adopts mechanical type trigger mode, and when trigger device 3 moved down to preset position, trigger device 3's bottom can promote travel switch 2's trigger mechanism action to guarantee the steady operation of production. The utility model provides a position detection mechanism installing support that falls fixes in the side of workstation 6, after work piece 7 was sent the predetermined position by the transfer chain, the bottom of work piece 7 was pressed at trigger device 3's top, can make trigger device 3 vertical downstream, trigger device 3's bottom is through touching travel switch 2's trigger mechanism for travel switch 2 obtains triggering, and then, travel switch 2 is to control system feedback signal, can confirm work piece 7 has fallen the position, can carry out corresponding operation on next step.

Further, the triggering device 3 comprises a vertical guide shaft 31, an upper pressing plate 33 fixedly connected to the top end of the guide shaft 31, and a triggering plate 32 connected to the bottom end of the guide shaft 31; the cross-sectional area of the upper platen 33 and the cross-sectional area of the trigger plate 32 are both larger than the cross-sectional area of the guide shaft 31.

The trigger device 3 can be designed in the manner shown in fig. 1, and is composed of an upper pressure plate 33 with upper and lower planes at the top, a guide shaft 31 at the middle part, and a trigger plate 32 at the bottom, and the three parts can be fixed by bolts and the like. The guide shaft 31 is located inside the through hole of the cross plate 12, and when the upper press plate 33 is pressed downward by the arrow shown in fig. 2, the guide shaft 31 moves downward along the through hole, thereby driving the trigger plate 32 to move downward synchronously

Further, a guide sleeve 4 coaxial with the through hole is further arranged on the transverse plate 12; the inner diameter of the guide sleeve 4 matches the outer diameter of the guide shaft 31.

In order to ensure the smooth movement of the guide shaft 31 and the service life of the drop position detection mechanism, the guide sleeve 4 is coaxially arranged at the through hole, the guide sleeve 4 is in a cylindrical structure, and the inner diameter of the guide sleeve 4 is slightly larger than the outer wall of the guide shaft 31, so that the guide shaft 31 and the guide sleeve form a tight sliding fit. A preferred embodiment of the guiding sleeve 4 is shown in fig. 3, and comprises a flange plate at the top and a sleeve body connected below the flange plate, wherein the sleeve body extends into the through hole from top to bottom, the size of the flange plate is larger than that of the through hole, so that the bottom surface of the flange plate is attached to the upper surface of the transverse plate 12, and then the transverse plate 12 is connected with the flange plate by bolts, thereby realizing the fixation of the guiding sleeve 4.

Further, the falling position detection mechanism further comprises a spring 5 sleeved outside the guide shaft 31; the spring 5 is located between the upper pressing plate 33 and the transverse plate 12.

In practical use, the falling position detection mechanism is not used once, but is operated for a plurality of times, so that after the trigger device 3 moves downwards to trigger the travel switch 2, the trigger device 3 needs to be automatically restored to the initial state when the trigger device is not moved downwards, and therefore, the cylindrical return spring 5 is sleeved on the outer side of the guide shaft 31. The bottom surface of the spring 5 is located above the cross plate 12 (when the guide sleeve 4 with the flange is used, the bottom surface of the spring 5 is in contact with the upper surface of the flange), and the top surface is located below the bottom plane of the upper press plate 33.

Further, two through holes are formed in the transverse plate 12; the triggering device 3 comprises two mutually parallel guide shafts 31.

In order to maintain the stability of the movement of the triggering device, the present application provides two parallel guide shafts 31 in the triggering device 3. The two guide shafts 31 share the same upper pressure plate 33 and the same trigger plate 32, so that the synchronous action of the two guide shafts 31 is ensured. Correspondingly, the number of the springs 5 is two, the number of the through holes formed in the transverse plate 12 is two, and the center distance between the two through holes is consistent with the center distance between the two guide shafts 31.

Further, the trigger mechanism of the travel switch 2 is a swing rod 21; the travel switch 2 is horizontally arranged on the dismounting side of the trigger device; one end of the swing rod 21 far away from the travel switch 2 is positioned below the trigger plate 32.

The stroke switch 2 has various forms such as a direct-acting type, a swing type, etc., and a swing lever type stroke switch is preferable in the present application. For better arrangement, the travel switch 2 is horizontally arranged on the vertical plate 11, the trigger mechanism is a swing rod 21, the middle part or the right part of the swing rod 21 is connected to a rotating mechanism at the left end of the travel switch 2 through a fastening screw, and the left end of the swing rod 21 is arranged in a suspended mode and is located under the trigger plate 32. When the swing rod 21 does not act, the swing rod is kept in a horizontal state like the travel switch 2, when the trigger device 3 moves downwards, the bottom surface of the trigger plate 32 starts to contact the left end of the swing rod 21 and drives the swing rod 21 to rotate downwards counterclockwise, the larger the downward movement distance of the trigger device 3 is, the larger the swing angle of the swing rod 21 is, and when the swing angle reaches a preset angle, the travel switch 2 is triggered and feeds back an electric signal outwards.

Subsequently, after the work of the current station is completed and the workpiece 7 is removed, the upper pressing plate 33 is no longer pressed downwards, the trigger mechanism moves upwards to return to the original position under the action of the spring 5, and at the moment, the swing rod 21 also returns to the initial horizontal state under the action of the rotating mechanism.

Further, one end of the swing rod 21, which is far away from the travel switch 2, is provided with a roller.

In order to make the swing link 21 swing more easily when being pressed, the left end of the swing link 21 may be provided with a roller to convert the contact between the bottom surface of the trigger plate 32 and the swing link 21 from sliding friction to rolling friction.

Further, the swing range alpha of the swing rod 21 is 0-90 DEG

Although the pivot angle of the rocker 21 required for triggering the travel switch 2 is generally <90 °, the pivot range of the rocker 21 should be up to 90 ° (i.e. to the position shown by the dashed line in fig. 1) in order to accommodate different operating conditions.

Further, the swing link 21 is provided with a sliding groove 22 arranged along the length direction.

In order to adjust the position of the swing link 21, a through-length sliding slot 22 can be arranged in the middle of the swing link 21, and after the left and right positions of the swing link 21 are adjusted, a fastening screw penetrates through the sliding slot 22 and is screwed on a rotating mechanism at the left end of the travel switch 2.

Furthermore, an oblong mounting hole 8 is formed in the vertical plate 11.

The mounting hole 8 is used for mounting and fixing the position detection mechanism, and in order to adjust the mounting position of the position detection mechanism on the workbench 6, the mounting hole 8 can be designed into an oblong hole as shown in fig. 1.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, the invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A falling position detection mechanism for an assembly line is characterized by comprising a mounting bracket (1), a travel switch (2) and a trigger device (3); the mounting bracket (1) comprises a vertical plate (11) and a transverse plate (12) vertically connected to the top of the vertical plate (11); the travel switch (2) is fixedly connected with the vertical plate (11); the transverse plate (12) is provided with a through hole; the trigger device (3) is movably connected with the transverse plate (12), and the trigger device (3) can move up and down along the axis of the through hole; the trigger mechanism on the travel switch (2) is positioned in the movable range of the trigger device (3).

2. A drop detection mechanism according to claim 1, wherein the trigger means (3) comprises a vertical guide shaft (31), an upper pressure plate (33) fixedly connected to the top end of the guide shaft (31), and a trigger plate (32) connected to the bottom end of the guide shaft (31); the cross-sectional area of the upper platen (33) and the cross-sectional area of the trigger plate (32) are both larger than the cross-sectional area of the guide shaft (31).

3. The drop detection mechanism according to claim 2, wherein the transverse plate (12) is further provided with a guide sleeve (4) coaxial with the through hole; the inner diameter of the guide sleeve (4) is matched with the outer diameter of the guide shaft (31).

4. The drop detection mechanism according to claim 2, further comprising a spring (5) sleeved outside the guide shaft (31); the spring (5) is positioned between the upper pressure plate (33) and the transverse plate (12).

5. The drop detection mechanism according to any one of claims 2-4, wherein the cross plate (12) is provided with two through holes; the triggering device (3) comprises two mutually parallel guide shafts (31).

6. A drop detection mechanism according to claim 2, wherein the triggering mechanism of the travel switch (2) is a rocker (21); the travel switch (2) is horizontally arranged at the oblique lower part of the trigger device (3); one end of the swing rod (21) far away from the travel switch (2) is positioned below the trigger plate (32).

7. A drop detection mechanism according to claim 6, wherein a roller is provided at an end of the rocker (21) remote from the travel switch (2).

8. A drop detection mechanism according to claim 6, wherein the swing range of the swing lever (21) is 0 ° to 90 °.

9. A drop detection mechanism according to claim 6, wherein the rocker (21) is provided with a slide slot (22) arranged in the length direction.

10. The drop detection mechanism according to claim 1, wherein the upright plate (11) is provided with an oblong mounting hole (8).