A flexible assembly device for an oxygen sensor conduit boot

Abstract

This invention discloses a flexible assembly device for an oxygen sensor duct cover, comprising: a worktable on which an oxygen sensor body positioning seat is fixed; and a duct cover assembly mechanism, including a robotic arm with a feeding arm for pressing the duct cover connected below it. A flexible pressing mechanism is fixedly connected to the end of the feeding arm. The flexible pressing mechanism includes a first finger cylinder, with arc-shaped grooves formed on the inner walls of the two fingers of the first finger cylinder. The arc-shaped grooves match the duct cover. A connecting block is also fixed to the cylinder body of the first finger cylinder. This flexible assembly device has a simple structure and can accurately detect the state of the duct during duct cover assembly, quickly stopping the assembly when the duct deforms, effectively ensuring the assembly quality of the oxygen sensor.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of oxygen sensor processing, and particularly relates to a flexible assembly device for an oxygen sensor conduit cover. BACKGROUND

[0002] An oxygen sensor, also known as an oxygen gas sensor or oxygen gas detector, is a device used to measure the concentration of oxygen in the environment. They have applications in various fields, including the automotive industry, environmental monitoring, medical devices, and industrial process control. The main function of an oxygen sensor is to monitor the oxygen concentration and convert it into an electrical signal or other form of output for data recording, monitoring, or control. An oxygen sensor is mainly composed of an oxygen sensor body, a conduit, and a conduit cover. The conduit is made of flexible rubber material and is pre-installed on the oxygen sensor body. When assembling the conduit cover, the conduit cover is pressed downward, which may cause misalignment with the conduit, resulting in deformation of the conduit end face. Since the conduit is hidden after the oxygen sensor is assembled, it is difficult to determine whether the conduit is normal, which may cause abnormality of the oxygen sensor during later use. SUMMARY

[0003] To solve one or more of the above-mentioned defects in the prior art, the present application provides a flexible assembly device for an oxygen sensor conduit cover, which is simple in structure and can accurately determine the state of the conduit during assembly of the conduit cover. When the conduit deforms, the assembly can be quickly stopped, effectively ensuring the assembly quality of the oxygen sensor.

[0004] To achieve the above-mentioned purpose, the present application provides a flexible assembly device for an oxygen sensor conduit cover, comprising:

[0005] a workbench, wherein an oxygen sensor body positioning seat is fixed on the workbench;

[0006] a conduit cover assembly mechanism, which comprises a mechanical hand, a blanking arm connected below the mechanical hand for pressing the conduit cover, a flexible pressing mechanism fixedly connected at the end of the blanking arm, the flexible pressing mechanism comprising a first finger air cylinder, two finger inner walls of the first finger air cylinder being provided with arc-shaped grooves matched with the conduit cover, a connecting block being further fixed on the cylinder body of the first finger air cylinder, a sliding rod being slidably connected in the connecting block, a buffer spring being provided on the sliding rod, and a lower pressing head being fixed at the bottom of the sliding rod;

[0007] a conduit cover vibrating table, wherein the material channel of the vibrating table is located on the side of the mechanical hand;

[0008] An infrared detection mechanism, the infrared detection mechanism includes a connecting support, the connecting support is fixed with an infrared sensor, the infrared sensor and the flexible pipe on the oxygen sensor in the oxygen sensor body positioning seat are corresponded.

[0009] Further, the workbench adopts a rotary disc, and a plurality of oxygen sensor body positioning seats are uniformly and spacedly arranged on the rotary disc.

[0010] Further, the middle region of the blanking arm is fixed on the rotating head of the manipulator, and a blanking grabbing mechanism is fixed on the other end of the blanking arm.

[0011] Further, the positioning mechanism further includes a horizontal moving mechanism, a horizontal sliding table is connected to the horizontal moving mechanism, and a second finger air cylinder is connected to the horizontal sliding table, and a positioning groove matched with the oxygen sensor body is formed in the inner wall of the clamping finger of the second finger air cylinder.

[0012] Further, the horizontal moving mechanism adopts a linear module.

[0013] Further, the oxygen sensor body positioning seat includes a seat plate, a positioning pin is fixed on the seat plate, and the positioning pin is matched with the inner hole of the oxygen sensor body.

[0014] Further, a pair of infrared sensors are further included, the receiving end and the generating end of the pair of infrared sensors are fixed on the first support and the second support respectively, and the first support and the second support are located on the side surface of the rotary disc.

[0015] The beneficial effects of the present application are:

[0016] First, the flexible assembly device is simple in structure, can accurately detect the state of the pipe when the pipe cover is assembled, can quickly stop assembly when the pipe is deformed, and effectively ensures the assembly quality of the oxygen sensor;

[0017] Second, the flexible press-fitting mechanism is installed on the blanking arm, so that when the pipe cover is press-fitted, the spring is deformed when the pipe is deformed due to the action of the buffer spring, and forced assembly is avoided, so that the pipe is not damaged;

[0018] Third, the positioning mechanism includes a horizontal moving mechanism, and the finger air cylinder on the horizontal sliding table can pre-position the oxygen sensor before the pipe cover is assembled, so that the vibration of the oxygen sensor is avoided, and the pipe cover of the oxygen sensor is more stable during assembly. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the present application;

[0020] Figure 2 is a plan view of the present application;

[0021] Figure 3 is a structural view of the present application's infrared sensor;

[0022] Figure 4 is a structural schematic view of the present application's flexible press-fitting mechanism;

[0023] Figure 5 is a structural schematic view of the present application's mechanical hand;

[0024] Figure 6 is a schematic view of the present application's infrared sensor detection (with the second bracket removed);

[0025] Figure 7 is a structural view of the present application's oxygen sensor;

[0026] Figure 8 is a structural view of the present application's oxygen sensor body;

[0027] Figure 9 is a structural view of the present application's catheter cover;

[0028] In the figure: 1, workbench; 2, oxygen sensor body positioning seat; 3, mechanical hand; 4, blanking arm; 5, first finger cylinder; 6, second finger cylinder; 7, connecting block; 8, sliding rod; 9, buffer spring; 10, lower head; 11, catheter cover vibration table; 12, connecting bracket; 13, infrared sensor; 14, rotary disc; 15, horizontal movement mechanism; 16, horizontal sliding table; 17, seat plate; 18, positioning pin; 19, infrared sensor; 20, mounting plate; 21, rotary head; 22, oxygen sensor body; 23, catheter cover; 24, chuck; 25, flexible catheter; 26, arc-shaped groove; 27, material channel; 28, servo motor; 29, first bracket; 30, second bracket; 31, blanking grabbing mechanism; 32, mounting frame; DETAILED DESCRIPTION

[0029] The present application will be further described below in conjunction with the accompanying drawings and examples:

[0030] Referring to Figures 1 to 9 the flexible assembly device for the oxygen sensor catheter cover shown in the figure, comprising:

[0031] a workbench 1, the workbench 1 is fixed with an oxygen sensor body positioning seat 2;

[0032] A conduit cover assembling mechanism, which comprises a mechanical hand 3, a blanking arm 4 connected below the mechanical hand 3 and used to press the conduit cover 23, a flexible pressing mechanism fixedly connected at the end of the blanking arm 4, the flexible pressing mechanism comprising a first finger air cylinder 5, two finger inner walls of the first finger air cylinder 5 being provided with arc-shaped grooves 26 matched with the conduit cover 23, a connecting block 7 being further fixed on the cylinder body of the first finger air cylinder 5, a sliding rod 8 being slidingly connected in the connecting block 7, a buffer spring 9 being sleeved on the sliding rod 8, and a pressing head 10 being fixed at the bottom of the sliding rod 8;

[0033] A conduit cover 23 vibrating table 11, a material channel 27 of the vibrating table being located at the side of the mechanical hand 3;

[0034] An infrared detection mechanism, which comprises a connecting support 12, an infrared sensor 13 being fixed on the connecting support 12 through a mounting plate 20 and a mounting frame 32, the infrared sensor 13 corresponding to the flexible conduit 25 on the oxygen sensor on the oxygen sensor body positioning seat 2.

[0035] The application is used in the following process, first, the oxygen sensor body 22 to be assembled is positioned and connected on the oxygen sensor body positioning seat 2, then the assembly mechanism of the guide pipe cover 23 is started, the lower part of the mechanical hand 3 of the assembly mechanism is connected with the blanking arm 4, the mechanical hand 3 drives the blanking arm 4 to move, moves to the material channel 27 of the guide pipe cover vibrating table 11, and the guide pipe cover 23 in the material channel 27 is grabbed, the flexible guide pipe is pre-connected on the chuck 24 of the oxygen sensor body, after the guide pipe cover 23 is grabbed, the guide pipe cover 23 is moved above the oxygen sensor body 22 positioning seat 2, then the blanking arm 4 moves downward, when the blanking arm 4 moves, the guide pipe cover 23 in the blanking arm 4 is assembled to the outside of the chuck 24 of the oxygen sensor body 22, when the guide pipe cover 23 is assembled, the guide pipe cover 23 between the inner walls of the fingers of the first finger air cylinder 5 is directly moved downward, in the moving process, if the flexible guide pipe 25 does not deform, the guide pipe cover 23 can be moved downward without obstruction, if the flexible guide pipe 25 deforms, the guide pipe cover 23 will obviously meet obstruction when moving downward, at this time, since the sliding rod 8 is connected above the fingers of the first finger air cylinder 5, the sliding rod 8 is sleeved with the buffer spring 9, the upper end of the buffer spring 9 is fixed on the connecting block, and the lower end is fixed on the lower pressing head, the guide pipe cover 23 will transmit the blocking force to the lower pressing head 10 at the bottom of the sliding rod 8, the lower pressing head 10 will extrude the buffer spring 9, so that the buffer spring 9 deforms, and the guide pipe cover 23 will not be continuously pushed to move downward, and the guide pipe cover 23 will not be forced to be pressed and assembled, in addition, since the application also has an infrared detection mechanism, the infrared sensor 13 on the infrared detection mechanism corresponds to the flexible guide pipe 25, the infrared sensor 13 can sensitively capture the deformation of the flexible guide pipe 25 (when the deformation occurs, the flexible guide pipe 25 will be folded, so that the distance between the infrared sensor changes), so as to transmit the signal to the controller, the controller issues an alarm, and the blanking arm 4 of the mechanical hand 3 is driven to move upward, then the assembly position is stopped, and the operator corrects the position of the oxygen sensor body 22 or the guide pipe cover 23 or directly takes it down.

[0036] Further, the workbench 1 adopts a rotary disc 14, and a plurality of oxygen sensor body positioning seats 2 are uniformly and intervaliy arranged on the rotary disc 14. Specifically, the workbench 1 adopts the rotary disc 14, the rotary disc 14 is driven by a servo motor 28 to realize intermittent rotation, and a plurality of oxygen sensor body positioning seats 2 can be intervaliy arranged on the rotary disc 14, so that after the assembly of one oxygen sensor is completed, the rotary disc 14 is rotated to continuously assemble the oxygen sensor in the next station.

[0037] Further, the middle region of the blanking arm 4 is fixed on the rotating head 21 of the manipulator 3, and a blanking grabbing mechanism 31 is fixed on the other end of the blanking arm 4. Specifically, the middle region of the blanking arm 4 of the present application is fixed on the rotating head 21 of the manipulator 3, and when an oxygen sensor is assembled, the rotating head 21 of the manipulator 3 starts to rotate, and the blanking grabbing mechanism 31 at the other end can grab the assembled oxygen sensor and place it in the storage area for storage. The blanking grabbing mechanism can also use a clamping finger.

[0038] Further, a positioning mechanism is further included, which comprises a horizontal moving mechanism 15, a horizontal sliding table 16 connected to the horizontal moving mechanism 15, and a second finger air cylinder 6 connected to the horizontal sliding table 16, and an inner wall of the clamping finger of the second finger air cylinder 6 is provided with a positioning groove (also an arc-shaped groove) matched with the oxygen sensor body 22. Specifically, the positioning mechanism of the present application is a horizontal moving mechanism, and the second finger air cylinder 6 on the horizontal sliding table 16 can clamp the oxygen sensor body 22 in the positioning seat to prevent vibration and cause misassembly. When the conduit cover approaches above the oxygen sensor body, the second finger air cylinder 6 exits and resets.

[0039] Further, the horizontal moving mechanism 15 uses a linear module. Specifically, the horizontal moving mechanism 15 of the present application can use a linear module, which can be directly purchased on the market.

[0040] Further, the oxygen sensor body positioning seat 2 comprises a seat plate 17, a positioning pin 18 fixed on the seat plate 17, and the positioning pin 18 is matched with the inner hole of the oxygen sensor body 22. Specifically, the oxygen sensor body positioning seat 2 of the present application comprises a seat plate 17, and the positioning pin 18 on the seat plate 17 can realize rapid positioning of the oxygen sensor body 22 through the positioning hole at the bottom.

[0041] Further, a pair of infrared sensors 19 are further included, and the receiving end and the emitting end of the pair of infrared sensors 19 are fixed on the first bracket 29 and the second bracket 30, respectively, and the first bracket 29 and the second bracket 30 are located on the side of the rotary disc 14. Specifically, the pair of infrared sensors 19 can detect whether the installation distance of the conduit cover 23 is within the error range. If the moving distance of the conduit cover 23 is not enough (if the assembly is correct, the moving distance of the conduit cover should be a fixed length, and if the installation of the insulator inside the conduit cover is not in place, the moving distance will not be enough), it means that the installation is not in place, and the signal is transmitted to the controller, the equipment is stopped, and the operator checks and corrects the oxygen sensor that is not installed in place.

[0042] The preferred embodiments of the present application have been described above in detail. It should be understood that modifications and variations to the present application can be affected by those skilled in the art without departing from the scope of the application. Accordingly, it is intended that all of the subject matter of the above description and the claims be interpreted to encompass all such modifications and changes.

Claims

1. A flexible assembly device for an oxygen sensor duct cap, characterized in that, include: A workbench, on which an oxygen sensor body positioning seat is fixed; A guide tube cover assembly mechanism includes a robotic arm with a feeding arm connected below it for pressing the guide tube cover. A flexible pressing mechanism is fixedly connected to the end of the feeding arm. The flexible pressing mechanism includes a first finger cylinder with arc-shaped grooves on the inner walls of the two fingers of the first finger cylinder. The arc-shaped grooves match the guide tube cover. A connecting block is also fixed on the cylinder body of the first finger cylinder. A sliding rod is slidably connected in the connecting block. A buffer spring is sleeved on the sliding rod. A pressing head is fixed at the bottom of the sliding rod. A guide tube covers a vibrating platform, and the material channel of the vibrating platform is located on the side of the robot arm; An infrared detection mechanism includes a connecting bracket, on which an infrared sensor is fixed. The infrared sensor corresponds to the flexible conduit on the oxygen sensor positioned in the oxygen sensor body positioning seat.

2. The flexible assembly device for the oxygen sensor duct cap as described in claim 1, characterized in that, The workbench is a rotary table, on which multiple oxygen sensor body positioning seats are evenly spaced.

3. The flexible assembly device for the oxygen sensor duct cap as described in claim 2, characterized in that, The middle part of the unloading arm is fixed to the rotating head of the robot, and the other end of the unloading arm is fixed with an unloading gripping mechanism.

4. The flexible assembly device for the oxygen sensor duct cap as described in claim 3, characterized in that, It also includes a positioning mechanism, which includes a horizontal moving mechanism with a horizontal slide connected to it. A second finger cylinder is connected to the horizontal slide, and the inner wall of the second finger cylinder has a positioning groove that matches the oxygen sensor body.

5. The flexible assembly device for the oxygen sensor duct cap as described in claim 4, characterized in that, The horizontal movement mechanism adopts a linear module.

6. The flexible assembly device for the oxygen sensor duct cap as described in claim 5, characterized in that, The oxygen sensor body positioning base includes a base plate, on which a positioning pin is fixed, and the positioning pin matches the inner hole of the oxygen sensor body.

7. The flexible assembly device for the oxygen sensor conduit cover as described in claim 6, characterized in that, It also includes a pair of through-beam sensors, the receiving end and the transmitting end of the through-beam sensors are respectively fixed on a first bracket and a second bracket, the first bracket and the second bracket are respectively located on the side of the rotary table.

Images