Engine tray positioning detection device

Abstract

The utility model discloses a detection device for positioning an engine tray, belongs to the technical field of detection, and solves the problems that a photoelectric switch is mounted on the outer side of an assembly line, the attractiveness is influenced, the photoelectric switch is easily shielded by an object, the photoelectric switch is mistakenly triggered, and potential safety hazards exist. The engine tray positioning detection device comprises a mounting base, the mounting base is slidably mounted on the inner side of an assembly line, one end of the mounting base is provided with a supporting frame, the supporting frame is provided with a photoelectric switch, the other end of the mounting base is provided with a protruding block, the protruding block is rotatably provided with a connecting rod, and the connecting rod is connected with the supporting frame. One end of the connecting rod is provided with a detection face matched with the optoelectronic switch, the bottom of one end of the connecting rod makes contact with the upper end face of the installation base, the other end of the connecting rod is rotationally provided with a pulley, and the pulley is located on one side of the installation base. The detection device for positioning the engine tray can effectively prevent the photoelectric switch from being triggered by mistake to cause safety accidents.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and more specifically, to a detection device for engine tray positioning. Background Technology

[0002] When an engine is running on an assembly line, it is typically placed on a pallet. The assembly line stops transporting the pallet containing the engine to the appropriate workstation, at which point workers or robotic arms can assemble the engine.

[0003] To achieve pallet positioning, the current method typically involves installing a photoelectric switch on the outside of the assembly line corresponding to the workstation. When the photoelectric switch is triggered, the assembly line stops conveying. For example, CN210634862U discloses a pallet positioning detection switch offset detection device, which includes a conveyor, a pallet being transported by the conveyor, a pallet positioning detection switch for positioning detection of the pallet, an alarm, and a tilt sensor fixedly installed on the pallet positioning detection switch. This sensor collects analog signals of the installation status of the pallet positioning detection switch and outputs the analog signals to a PLC controller. The PLC controller receives the analog signals and outputs a trigger signal to the alarm to activate the alarm. By using the tilt sensor on the pallet positioning detection switch, it detects the tilt of the switch and issues an alarm based on the detected tilt, reminding workers to inspect the switch and thus preventing damage to the robot gripper due to the offset of the pallet positioning detection switch. However, installing the photoelectric switch on the outside of the assembly line is aesthetically unpleasing, and the switch is easily obstructed by objects, leading to false triggering and posing a safety hazard. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a detection device for engine tray positioning that addresses the above-mentioned shortcomings of the prior art. This device can effectively prevent the photoelectric switch from being accidentally triggered, thus avoiding safety accidents. Furthermore, the photoelectric switch is installed on the inside of the production line, so it does not affect the overall aesthetics.

[0005] The technical solution of this utility model is as follows: a detection device for engine tray positioning includes a mounting base, which is slidably installed on the inner side of the production line. One end of the mounting base is provided with a support frame, and a photoelectric switch is provided on the support frame. The other end of the mounting base is provided with a protrusion, and a connecting rod is rotatably provided on the protrusion. One end of the connecting rod is provided with a detection surface adapted to the photoelectric switch, and the bottom of one end of the connecting rod contacts the upper surface of the mounting base. The other end of the connecting rod is rotatably provided with a pulley, which is located on one side of the mounting base, and the top of the pulley is higher than the top of the production line.

[0006] Furthermore, the protrusion is provided with a mounting groove, and a central rod is provided in the mounting groove. The connecting rod is rotatably mounted on the rotating rod.

[0007] Furthermore, a torsion spring is provided between the central rod and the connecting rod.

[0008] Furthermore, the connecting rod includes a rotating rod and a fixed rod. One end of the rotating rod is inclinedly fixed to one end of the fixed rod, and the included angle between the rotating rod and the fixed rod is 150°. The pulley is rotatably installed at the other end of the fixed rod. The rotating rod is rotatably installed in the mounting groove. The other end of the rotating rod overlaps the upper surface of the mounting base, and the detection surface is installed on the other end of the rotating rod.

[0009] Furthermore, the upper surface of the mounting base is provided with a rubber pad, and the bottom surface of one end of the connecting rod contacts the rubber pad.

[0010] Furthermore, the inner side of the assembly line is provided with a slide groove, and one side of the mounting base is provided with a slider that is adapted to the slide groove. The mounting base is provided with multiple bolt holes, one end of which extends to the end face of the slider. A fastening bolt is threaded into the bolt hole, and one end of the fastening bolt contacts the bottom of the slide groove.

[0011] Beneficial effects

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] This utility model discloses a detection device for positioning engine trays. When a tray containing an engine passes over a pulley and is pressed down, the lever principle causes the end of the connecting rod with the detection surface to rise to the same height as a photoelectric switch and be detected by the photoelectric switch. After the tray containing the engine passes over the pulley, the pulley is no longer pressed down by the tray. Under the action of a torsion spring, the pulley rises to its original position, and the lever principle causes the end of the connecting rod with the detection surface to fall to its original position, thus completing the detection of the tray on the assembly line. The photoelectric switch is installed on the inside of the assembly line, and because the mounting base is slidably installed on the inside of the assembly line, the position of the photoelectric switch can be adjusted according to the actual situation, avoiding interference between the detection device and other objects on the assembly line, and effectively preventing the photoelectric switch from being accidentally triggered, causing safety accidents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a top view of the mounting base in this utility model;

[0016] Figure 3This is a cross-sectional structural diagram of the mounting base in this utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of the connecting rod in this utility model.

[0018] Among them: 1-mounting base, 2-support frame, 3-photoelectric switch, 4-protrusion, 5-connecting rod, 6-detection surface, 7-pulley, 8-mounting groove, 9-center rod, 10-rubber pad, 11-slide groove, 12-slider, 13-fastening bolt, 14-production line, 51-rotating rod, 52-fixing rod. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0020] See Figure 1-3 An engine tray positioning detection device includes a mounting base 1, which is slidably mounted on the inner side of a production line 14. One end of the mounting base 1 has a support frame 2 with a photoelectric switch 3 mounted on it. The other end of the mounting base 1 has a protrusion 4 with a connecting rod 5 rotatably mounted on it. One end of the connecting rod 5 has a detection surface 6 adapted to the photoelectric switch 3, and the bottom of one end of the connecting rod 5 contacts the upper surface of the mounting base 1. The other end of the connecting rod 5 has a rotatably mounted pulley 7, located on one side of the mounting base 1, with its top higher than the top of the production line 14. When a tray containing an engine passes the pulley 7 and is pressed down, the lever principle causes the detection surface 6 mounted on the connecting rod 5 to be activated. One end of the measuring surface 6 rises to the same height as the photoelectric switch 3 and is detected by the photoelectric switch 3. When the tray containing the engine passes the pulley 7, the pulley 7 is not pressed down by the tray. Under the action of the torsion spring, the pulley 7 rises and resets. The end of the connecting rod 5 with the measuring surface 6 is lowered and reset through the lever principle, thereby completing the detection of the tray on the assembly line 14. The photoelectric switch 3 is installed inside the assembly line 14. Since the mounting base 1 is slidably installed inside the assembly line 14, the position of the photoelectric switch 3 can be adjusted according to the actual situation to avoid interference between the detection device and other objects on the assembly line 14. This effectively prevents the photoelectric switch 3 from being accidentally triggered and causing a safety accident.

[0021] In this embodiment, the protrusion 4 is provided with a mounting groove 8, and a central rod 9 is provided in the mounting groove 8. The connecting rod 5 is rotatably mounted on the central rod 9. The width of the mounting groove 8 is adapted to the width of the connecting rod 5 to avoid the connecting rod 5 moving left and right during rotation, which would cause the photoelectric switch 3 to fail to accurately sense the detection surface.

[0022] In this embodiment, a torsion spring is provided between the central rod 9 and the connecting rod 5. When the tray containing the engine passes the pulley 7 and is pressed down, the end of the connecting rod 5 with the detection surface 6 is raised to the same height as the photoelectric switch 3 through the lever principle and is detected by the photoelectric switch 3. After the tray passes the pulley 7, the connecting rod 5 rotates under the action of the torsion spring, and the pulley 7 returns to its original position.

[0023] In this embodiment, the connecting rod 5 includes a rotating rod 51 and a fixed rod 52. One end of the rotating rod 51 is inclinedly fixed to one end of the fixed rod 52, and the included angle between the rotating rod 51 and the fixed rod 52 is 150°. The pulley 7 is rotatably installed on the other end of the fixed rod 52. The rotating rod 51 is rotatably installed in the mounting groove 8, and the other end of the rotating rod 51 overlaps the upper end surface of the mounting base 1. The detection surface 6 is installed on the other end of the rotating rod 51. The inclined setting of the connecting rod 5 can effectively save the space required for the installation of the detection device and avoid interference with other objects due to excessive space occupation, thereby affecting the detection of the photoelectric switch 3.

[0024] In this embodiment, a rubber pad 10 is provided on the upper surface of the mounting base 1. The bottom surface of one end of the connecting rod 5 contacts the rubber pad 10. When the pulley 7 rises to reset, the other end of the connecting rod 5 descends to reset. Since the end of the connecting rod 5 with the detection surface 6 is in a downward trend when it resets, the rubber pad 10 on the upper surface of the mounting base 1 plays a buffering role to avoid the detection surface 6 from colliding with the upper surface of the mounting base 1 during reset, which would damage the detection surface 6 and cause inaccurate detection.

[0025] In this embodiment, a groove 11 is provided on the inner side of the assembly line 14, and a slider 12 adapted to the groove 11 is provided on one side of the mounting base 1. The cross-section of the groove 11 is convex, and the corresponding slider 12 is also convex. This prevents the slider 12 from falling out of the groove 11 when the fastening bolt 13 is loose, thereby preventing damage to the photoelectric switch 3 caused by the mounting base 1 falling from the inner side of the assembly line 14. The mounting base 1 is provided with multiple bolt holes, one end of which extends to the end face of the slider 12. The bolt holes are threaded with fastening bolts 13, one end of which contacts the bottom of the groove 11. There are two bolt holes on the mounting base 1, and correspondingly, there are two fastening bolts 13 threaded in the bolt holes. By tightening, the mounting base 1 is slidably installed on the inner side of the assembly line 14, and the installation position of the mounting base 1 on the assembly line 14 can be adjusted to avoid interference between the detection device and other objects on the assembly line 14.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A detection device for positioning an engine tray, characterized in that, The assembly includes a mounting base (1), which is slidably mounted on the inner side of the production line (14). One end of the mounting base (1) is provided with a support frame (2), on which a photoelectric switch (3) is provided. The other end of the mounting base (1) is provided with a protrusion (4), on which a connecting rod (5) is rotatably mounted. One end of the connecting rod (5) is provided with a detection surface (6) that is compatible with the photoelectric switch (3), and the bottom of one end of the connecting rod (5) is in contact with the upper surface of the mounting base (1). The other end of the connecting rod (5) is rotatably provided with a pulley (7), which is located on one side of the mounting base (1), and the top of the pulley (7) is higher than the top of the production line (14).

2. The detection device for engine tray positioning according to claim 1, characterized in that, The protrusion (4) is provided with a mounting groove (8), and a central rod (9) is provided in the mounting groove (8). The connecting rod (5) is rotatably mounted on the central rod (9).

3. The detection device for engine tray positioning according to claim 2, characterized in that, A torsion spring is provided between the central rod (9) and the connecting rod (5).

4. The detection device for engine tray positioning according to claim 2, characterized in that, The connecting rod (5) includes a rotating rod (51) and a fixed rod (52). One end of the rotating rod (51) is inclined and fixed to one end of the fixed rod (52), and the included angle between the rotating rod (51) and the fixed rod (52) is 150°. The pulley (7) is rotatably installed on the other end of the fixed rod (52). The rotating rod (51) is rotatably installed in the mounting groove (8). The other end of the rotating rod (51) overlaps the upper end surface of the mounting base (1), and the detection surface (6) is installed on the other end of the rotating rod (51).

5. The detection device for engine tray positioning according to claim 1, characterized in that, The upper surface of the mounting base (1) is provided with a rubber pad (10), and the bottom surface of one end of the connecting rod (5) is in contact with the rubber pad (10).

6. The detection device for engine tray positioning according to claim 1, characterized in that, The inner side of the assembly line (14) is provided with a slide groove (11), and one side of the mounting base (1) is provided with a slider (12) that is adapted to the slide groove (11). The mounting base (1) is provided with a plurality of bolt holes, one end of which extends to the end face of the slider (12). A fastening bolt (13) is threaded into the bolt hole, and one end of the fastening bolt (13) contacts the bottom of the slide groove (11).

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