Optical sensor assembly

Abstract

The utility model discloses an optical sensor assembly, which relates to the field of adjustable supports of laser displacement sensors and comprises a fixed seat fixedly mounted on a side plate of a conveying belt, a connecting arm is welded at the top of a top end plate of the fixed seat, and a rotating arm is rotatably mounted on the inner side of the connecting arm. A laser displacement sensor is installed between the two rotating arms through a displacement mechanism, a supporting seat protruding outwards is welded to the top of the outer side of one connecting arm, and a rotating mechanism connected with one rotating arm is rotationally installed on the supporting seat. According to the utility model, through arrangement of the worm gear and worm type rotating mechanism, angle adjustment of the laser displacement sensor can be realized, good self-locking force is provided after adjustment, and the problem of rotation of the laser displacement sensor due to stress after adjustment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of adjustable brackets for laser displacement sensors, specifically an optical sensor assembly. Background Technology

[0002] Laser displacement sensors are a type of optical sensor. When used for workpiece measurement, they generally employ the triangulation method, which is suitable for high-precision, short-distance measurements.

[0003] In existing technologies, the installation angle and position of a laser displacement sensor can affect its detection accuracy. During the adjustment process, existing laser displacement sensors can generally only be adjusted in position, not in angle. Therefore, after installation, the bottom end (or output end face) of the laser displacement sensor is not parallel to the top of the conveyor belt, which can easily cause measurement errors. Utility Model Content

[0004] The purpose of this invention is to provide an optical sensor assembly in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an optical sensor assembly, comprising a fixed base fixedly installed with a conveyor belt side plate, a connecting arm welded to the top of the top plate of the fixed base, a rotating arm rotatably installed on the inner side of the connecting arm, a laser displacement sensor installed between the two rotating arms via a displacement mechanism, and an outwardly protruding support base welded to the top of the outer side of one of the connecting arms, and a rotating mechanism connected to one of the rotating arms rotatably installed on the support base.

[0006] As a further embodiment of this utility model: the displacement mechanism includes a guide rod fixedly installed above the inner side of the two rotating arms, and the displacement mechanism also includes a screw rotatably installed between the two rotating arms. The screw is located below the rotating arms, and a rotating disk is coaxially fixedly installed at one end of the screw. A handle is fixedly installed at an eccentric position at the end of the rotating disk away from the screw.

[0007] As a further embodiment of this utility model: the displacement mechanism further includes a mounting plate fixedly installed on the back end of the laser displacement sensor, a sliding sleeve formed on the mounting plate that is slidably connected to the guide rod, and a threaded sleeve formed on the mounting plate below the support base that is threadedly connected to the screw.

[0008] As a further embodiment of this utility model: the rotating mechanism includes a worm gear rotatably mounted between two support seats, one end of the worm gear being coaxially and fixedly connected to a crank handle rotatably connected to the support seat, a worm wheel meshing with the outer periphery of the worm gear, the worm wheel being fixedly connected to the center of the lower arc portion of one of the rotating arms via a synchronous shaft, and the synchronous shaft being rotatably connected to the connecting arm via a bearing.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. By setting a worm gear or worm-type rotation mechanism, the angle of the laser displacement sensor can be adjusted, and it has good self-locking force after adjustment, so as to avoid the laser displacement sensor from rotating under force after adjustment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0013] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle.

[0014] In the diagram: 1. Fixed base; 2. Connecting arm; 3. Rotating arm; 4. Screw; 5. Guide rod; 6. Rotating disk; 7. Handle; 8. Laser displacement sensor; 9. Support base; 10. Screw sleeve; 11. Worm; 12. Worm wheel; 13. Crank handle; 14. Sliding sleeve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-3 In this embodiment of the utility model, an optical sensor assembly includes a fixed base 1 fixedly installed with a conveyor belt side plate. A connecting arm 2 is welded to the top of the top plate of the fixed base 1. A rotating arm 3 is rotatably installed on the inner side of the connecting arm 2. A laser displacement sensor 8 is installed between the two rotating arms 3 through a displacement mechanism. A support base 9 protruding outward is welded to the top of the outer side of one of the connecting arms 2. A rotating mechanism connected to one of the rotating arms 3 is rotatably installed on the support base 9.

[0017] In this embodiment: First, two studs are welded to both side plates of the conveyor belt. Then, the slots on the fixing seat 1 are passed through the two studs, and nuts are tightened onto the outer wall of the studs. At this time, the screwed-in nuts tightly press against the fixing seat 1. Then, according to the rotation mechanism, the rotation mechanism drives the rotating arm 3 to rotate. The rotating arm 3 drives the laser displacement sensor 8 to adjust its angle through the displacement mechanism until the laser displacement sensor 8 is parallel to the transmission part of the conveyor belt. When measuring the surface of the workpiece, it is necessary to adjust the position of the laser displacement sensor 8. For example, if the top of the workpiece has a groove, after the laser is emitted from the output end, it contacts the bottom of the inner wall of the groove and is reflected. If the position of the laser displacement sensor 8 is incorrect, the reflected laser will contact the side wall of the groove, resulting in inaccurate measurement. Therefore, the position of the laser displacement sensor 8 is adjusted by the displacement mechanism to avoid the problem of inaccurate measurement caused by the emitted laser contacting the inner wall of the groove.

[0018] Please refer to this carefully. Figure 1 and Figure 2 The displacement mechanism includes a guide rod 5 fixedly installed on the upper inner side of the two rotating arms 3. The displacement mechanism also includes a screw 4 rotatably installed between the two rotating arms 3. The screw 4 is located below the rotating arms 3. A rotating disk 6 is fixedly installed coaxially at one end of the screw 4. A handle 7 is fixedly installed at an eccentric position at the end of the rotating disk 6 away from the screw 4. The displacement mechanism also includes a mounting plate fixedly installed on the back end of the laser displacement sensor 8. A sliding sleeve 14 that is slidably connected to the guide rod 5 is formed on the mounting plate. A threaded sleeve 10 that is threadedly connected to the screw 4 is formed on the mounting plate below the support base 9.

[0019] In this embodiment: when adjusting the position of the laser displacement sensor 8, the handle 7 is rotated, which drives the rotating disk 6 to rotate. The rotating disk 6 then drives the screw 4 to rotate. At this time, the screw sleeve 10 slides along the length direction of the screw 4 under the limitation of its internal thread and the guide rod 5. The screw sleeve 10 drives the laser displacement sensor 8 to move synchronously through the mounting plate, thereby achieving the purpose of adjusting the position of the laser displacement sensor 8.

[0020] Please refer to this carefully. Figure 2 and Figure 3 The rotating mechanism includes a worm gear 11 rotatably mounted between two support seats 9. One end of the worm gear 11 is coaxially fixedly connected to a crank handle 13 rotatably connected to the support seat 9. A worm wheel 12 meshes with the outer periphery of the worm gear 11. The worm wheel 12 is fixedly connected to the center of the lower arc of a rotating arm 3 via a synchronous shaft. The synchronous shaft and the connecting arm 2 are rotatably connected via bearings.

[0021] In this embodiment: After the device is installed on the side plate of the conveyor belt, it is necessary to ensure that the bottom end of the laser displacement sensor 8 is flush with the top surface of the conveying part of the conveyor belt to ensure measurement accuracy. At this time, by turning the crank handle 13, the crank handle 13 drives the worm gear 11 to rotate synchronously. At this time, the spiral part on the outside of the worm gear 11 squeezes the teeth of the worm wheel 12, driving the worm wheel 12 to rotate. The rotating worm wheel 12 drives the rotating arm 3 to rotate, and the rotating arm 3 drives the laser displacement sensor 8 to rotate synchronously through the displacement mechanism until the laser displacement sensor 8 is flush with the top of the conveying part of the conveyor belt.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An optical sensor assembly, comprising a mounting base (1) fixedly mounted to a conveyor belt side plate, characterized in that, A connecting arm (2) is welded to the top of the top plate of the fixed base (1). A rotating arm (3) is rotatably installed on the inner side of the connecting arm (2). A laser displacement sensor (8) is installed between the two rotating arms (3) through a displacement mechanism. A support base (9) protruding outward is welded to the top of the outer side of one of the connecting arms (2). A rotating mechanism connected to one of the rotating arms (3) is rotatably installed on the support base (9).

2. The optical sensor assembly according to claim 1, characterized in that, The displacement mechanism includes a guide rod (5) fixedly installed on the upper inner side of the two rotating arms (3). The displacement mechanism also includes a screw (4) rotatably installed between the two rotating arms (3). The screw (4) is located below the rotating arms (3). A rotating disk (6) is coaxially fixedly installed at one end of the screw (4). A handle (7) is fixedly installed at an eccentric position at the end of the rotating disk (6) away from the screw (4).

3. An optical sensor assembly according to claim 2, characterized in that, The displacement mechanism further includes a mounting plate fixedly installed on the back end of the laser displacement sensor (8), a sliding sleeve (14) slidably connected to the guide rod (5) is formed on the mounting plate, and a threaded sleeve (10) threadedly connected to the screw (4) is formed on the mounting plate below the support base (9).

4. An optical sensor assembly according to claim 3, characterized in that, The rotating mechanism includes a worm gear (11) rotatably mounted between two support seats (9). One end of the worm gear (11) is coaxially fixedly connected to a crank handle (13) rotatably connected to the support seat (9). A worm wheel (12) meshes with the outer periphery of the worm gear (11). The worm wheel (12) is fixedly connected to the center of the lower arc of one of the rotating arms (3) via a synchronous shaft. The synchronous shaft is rotatably connected to the connecting arm (2) via a bearing.

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