Automatic oiling device for sensor probe

Abstract

The utility model relates to an automatic oiling device for a sensor probe, which comprises a working table, a glue brushing machine, a limit support seat, a press roll driving mechanism and a controller, the limit support seat is fixed on the upper surface of the working table and is provided with a limit groove for placing a probe body, one end of the limit groove is provided with an inductive switch, and the other end of the limit groove is provided with a pressure roll driving mechanism. The glue brushing machine is arranged on one side of the workbench, a glue outlet brush head of the glue brushing machine can brush glue on the threaded part of the probe body placed in the limiting groove, and the pressing roller driving mechanism is arranged on the workbench and can press the probe body through a driving roller driven by a stepping motor to rotate and drive the probe body to rotate. According to the automatic oiling device for the sensor probe provided by the utility model, the glue brushing machine, the limiting supporting seat, the pressing roller driving mechanism and the controller are matched, so that the thread part of the probe body placed in the limiting supporting seat can be automatically coated with anti-sintering grease; and the oiling position is more accurate, the coated anti-sintering grease is more uniform and consistent, and the efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-sintering grease coating for vehicle sensor probes, and in particular relates to an automatic oil coating device for sensor probes. Background Art

[0002] After the sensor probe is tested, it is necessary to apply anti-sintering grease to the threaded part of the probe. The anti-sintering grease can prevent the probe from welding with the screw thread on the vehicle exhaust pipe in a high temperature environment, so as to facilitate subsequent repair and replacement.

[0003] At present, when applying anti-sintering grease to the threaded part of the sensor probe, workers usually apply it manually. This method is not only inefficient, but also has poor consistency and is greatly affected by manual labor. Therefore, it seriously affects the connection between the sensor probe and the screw hole on the vehicle exhaust pipe after applying the anti-sintering grease, and often causes problems such as welding, disassembly, repair and replacement. Utility Model Content

[0004] The utility model provides an automatic oiling device for a sensor probe, aiming to overcome the above-mentioned shortcomings in the prior art at least to a certain extent.

[0005] The utility model solves the above-mentioned technical problems through the following technical solutions: a sensor probe automatic oiling device, comprising a workbench, a glue brushing machine, a limit support seat, a pressure roller driving mechanism and a controller, wherein the limit support seat is fixed to the upper surface of the workbench and the limit support seat is provided with a limit groove for the probe body to be placed in, and one end of the limit groove is provided with a sensing switch for sensing the probe body, the glue brushing machine is arranged on one side of the workbench and the glue brush head of the glue brushing machine can brush glue on the threaded portion of the probe body placed in the limit groove, the pressure roller driving mechanism is arranged on the workbench and can press the probe body located in the limit groove and drive the probe body to rotate through a driving roller driven to rotate by a stepping motor, and the glue brushing machine, the sensing switch and the stepping motor are all electrically connected to the controller.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the pressure roller driving mechanism also includes a supporting arm, a rotating arm and a clamping spring, the lower end of the supporting arm is fixedly connected to the workbench, one end of the rotating arm is rotatably connected to the supporting arm, and the other end is fixed with the stepping motor, the output end of the stepping motor is fixedly connected to the driving roller, and the clamping spring can make the wheel rim of the driving roller press the probe body located in the limiting groove from obliquely above and when the driving roller rotates, the probe body is driven to rotate in the limiting groove through friction.

[0008] Further, the support arm is vertically arranged, a rotating shaft extending in the horizontal direction is fixed at the upper end of the support arm, a circular hole is formed in the upper end of the rotating arm along the direction perpendicular to the length direction of the rotating arm, and the rotating arm is sleeved on the rotating shaft through the circular hole and is rotatably connected with the rotating shaft.

[0009] Further, a first connecting column is fixed at the top of the rotating shaft, a second connecting column is fixed on the rotating arm near the stepping motor, one end of the compression spring is fixedly connected with the first connecting column, the other end first bypasses the bottom of the rotating shaft from the rear side and then stretches upward from the front side and is fixedly connected with the second connecting column, and the compression spring generates a downward acting force on one end of the rotating arm connected with the stepping motor.

[0010] Further, the lower end of the compression spring is fixedly connected with the workbench surface, and the other end is fixedly connected with the rotating arm. The compression spring generates a downward acting force on one end of the rotating arm connected with the stepping motor.

[0011] Further, the controller is a PLC circuit board or a single-chip microcomputer.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The automatic oiling device for sensor probes provided by the present utility model can realize the automatic application of anti-sintering grease to the threaded part of the probe body placed in the limit support seat through the cooperation of the glue brushing machine, the limit support seat, the pressure roller driving mechanism and the controller. Through the tooling limit, the oiling position is more accurate, and the applied anti-sintering grease is more uniform. At the same time, the efficiency is high, overcoming the defects of low efficiency and poor consistency of manually applying grease to the probe body. Description of the Drawings

[0014] Figure 1 is an axonometric view of an automatic oiling device for sensor probes provided by the present utility model;

[0015] Figure 2 is Figure 1 the top view of the automatic oiling device for sensor probes shown;

[0016] Figure 3 is Figure 1 the front view of the automatic oiling device for sensor probes shown;

[0017] Figure 4 is Figure 1 the axonometric view of the limit support seat and the induction switch thereon in the automatic oiling device for sensor probes shown;

[0018] Figure 5 is Figure 1Schematic diagram of the compression spring of the automatic oiling device for the sensor probe shown when connecting the workbench and the rotating arm.

[0019] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0020] 1. Workbench; 2. Glue brushing machine; 3. Limit support seat; 4. Limit groove; 5. Inductive switch; 6. Stepper motor; 7. Driving roller; 8. Support arm; 9. Rotating arm; 10. Compression spring; 11. Rotating shaft; 12. First connecting column; 13. Second connecting column; 14. Probe body. Specific implementation mode

[0021] The principles and features of the present invention will be described below with reference to the attached drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, if terms indicating directions such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are used, the directions or positional relationships indicated are based on the directions or positional relationships shown in the attached drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as a limitation of the present invention.

[0023] As Figures 1 to 5 shown, the present invention provides an automatic oiling device for a sensor probe, which includes a workbench 1, a glue brushing machine 2, a limit support seat 3, a pressing roller driving mechanism and a controller. The limit support seat 3 is fixed on the upper surface of the workbench 1, and a limit groove 4 for placing the probe body 14 is provided on the limit support seat 3. An inductive switch 5 for sensing the probe body 14 is provided at one end of the limit groove 4. The glue brushing machine 2 is arranged on one side of the workbench 1, and the glue outlet brush head of the glue brushing machine 2 can brush glue on the threaded part of the probe body 14 placed in the limit groove 4. The pressing roller driving mechanism is arranged on the workbench 1 and can press the probe body 14 located in the limit groove 4 through a driving roller 7 driven by a stepper motor 6 and drive the probe body 14 to rotate. The glue brushing machine 2, the inductive switch 5 and the stepper motor 6 are all electrically connected to the controller.

[0024] It should be noted that the glue brushing machine is an existing device, which fills the anti-sintering grease into the brush head through the action of air pressure. The part of the brush head in contact with the probe body is made of a soft material similar to the tip of a writing brush. The function of the pressing roller driving mechanism is to press the probe body in the limit groove and drive the probe body to rotate in the limit groove under the frictional action of the rotating driving roller, so as to realize the uniform coating of the anti-sintering grease on the threaded part of the probe body for one week. The inductive switch preferably uses a metal proximity switch.

[0025] In an embodiment of the present utility model, as shown in Figure 1 and 2 shown, the pressing roller driving mechanism further includes a support arm 8, a rotating arm 9 and a pressing spring 10. The lower end of the support arm 8 is fixedly connected to the workbench 1. One end of the rotating arm 9 is rotatably connected to the support arm 8, and the stepping motor 6 is fixed to the other end. The output end of the stepping motor 6 is fixedly connected to the driving roller 7. The pressing spring 10 can press the rim of the driving roller 7 against the probe body 14 located in the limiting groove 4 from the upper oblique direction, and when the driving roller 7 rotates, it drives the probe body 14 to rotate in the limiting groove 4 through frictional force.

[0026] It should be noted that the rim of the driving roller is coated with a flexible material such as a rubber pad. When the driving roller presses against the probe body due to the action of the pressing spring, the rubber pad and other flexible materials on the rim of the driving roller are in contact with the outer wall of the probe body, and the frictional force generated between the two is sufficient to drive the probe body to rotate in the limiting groove. In addition, as shown in Figure 2 shown, when the probe body is relatively long, especially the end far from the induction switch in the limiting groove is relatively long, the probe body may not be placed stably in the limiting groove. At this time, another support block with a groove can be provided on the workbench, and the support block is arranged at the bottom of the end of the probe body far from the induction switch.

[0027] In an embodiment of the present utility model, as shown in Figure 3 shown, the support arm 8 is vertically arranged, and a rotating shaft 11 extending in the horizontal direction is fixed to the upper end of the support arm 8. A circular hole is formed in the upper end of the rotating arm 9 along a direction perpendicular to the length direction of the rotating arm 9. The rotating arm 9 is sleeved on the rotating shaft 11 through the circular hole and is rotatably connected to the rotating shaft 11.

[0028] It should be noted that a bearing member can be arranged in the circular hole to realize the rotational connection between the rotating arm and the rotating shaft.

[0029] In an embodiment of the present utility model, as shown in Figure 2 shown, a first connection column 12 is fixedly provided at the top of the rotating shaft 11, and a second connection column 13 is fixedly provided on the rotating arm 9 near the stepping motor 6. One end of the pressing spring 10 is fixedly connected to the first connection column 12, and the other end first goes from the rear side downward, bypasses the bottom of the rotating shaft 11, and then stretches upward and forward to be fixedly connected to the second connection column 13. The pressing spring 10 generates a downward acting force on one end of the rotating arm 9 connecting the stepping motor 6.

[0030] It can be understood that in this embodiment, a section of the pressing spring is wound around the rotating shaft (covering approximately half of the rotating shaft). The pressing spring is bent as a whole and continuously in a stretched state. The driving roller achieves the pressing effect on the probe body in the limiting groove through the gravity of itself and the stepping motor, etc. and the pulling force of the pressing spring.

[0031] In an embodiment of the present utility model, as Figure 4 shown, the lower end of the pressing spring 10 is fixedly connected to the surface of the workbench 1, and the other end is fixedly connected to the rotating arm 9. The pressing spring 10 generates a downward acting force on one end of the rotating arm 9 connected to the stepping motor 6.

[0032] It can be understood that in this embodiment, although the pressing spring is also continuously in a stretched state, it is straight and does not bend.

[0033] In an embodiment of the present utility model, the controller is a PLC circuit board or a single-chip microcomputer.

[0034] The basic principle of the present utility model is that the controller (single-chip microcomputer) receives the set signal through the input port, determines the operation to be performed after parsing the signal, generates the corresponding control signal, and transmits the generated control signal to the stepping motor drive circuit and the glue brushing machine, the dispensing machine and the motor drive circuit are responsible for converting these signals into actual control operations. The glue brushing machine generates air pressure according to the received signal, so that the glue (anti-sintering grease) is discharged and fills the brush head to ensure that there is enough glue for subsequent oiling operations. At the same time, the motor receives the control signal and starts to rotate after the glue is discharged. The driving roller (rubber wheel) rubs the corresponding part of the probe body due to the rotation of the motor, guiding the probe body to start rotating. The rotation of the probe body enables it to come into full contact with the brush head of the glue brushing machine, realizing the automatic oiling process. The friction of the driving roller makes the probe body rotate smoothly, ensuring the uniformity of oiling on the threaded part of the probe body. The entire system constitutes an automated closed-loop feedback system. The single-chip microcomputer adjusts the control signal in real time according to the input signal (the induction switch senses the situation of the probe body) and possible feedback signals, realizing the coordinated control of the glue brushing machine and the motor, thereby realizing the automatic oiling of the probe.

[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automatic oiling device for a sensor probe, characterized in that, It includes a workbench (1), a glue brushing machine (2), a limit support base (3), a pressing roller driving mechanism and a controller. The limit support base (3) is fixed on the upper surface of the workbench (1), and a limit groove (4) for placing the probe body (14) is provided on the limit support base (3). An induction switch (5) for sensing the probe body (14) is provided at one end of the limit groove (4). The glue brushing machine (2) is arranged on one side of the workbench (1), and the glue outlet brush head of the glue brushing machine (2) can brush glue on the threaded part of the probe body (14) placed in the limit groove (4). The pressing roller driving mechanism is arranged on the workbench (1) and can press the probe body (14) located in the limit groove (4) through a driving roller (7) driven by a stepping motor (6) and drive the probe body (14) to rotate. The glue brushing machine (2), the induction switch (5) and the stepping motor (6) are all electrically connected to the controller.

2. The automatic oiling device for a sensor probe according to claim 1, characterized in that, The pressing roller driving mechanism further includes a support arm (8), a rotating arm (9) and a pressing spring (10). The lower end of the support arm (8) is fixedly connected to the workbench (1). One end of the rotating arm (9) is rotatably connected to the support arm (8), and the other end is fixed with the stepping motor (6). The output end of the stepping motor (6) is fixedly connected to the driving roller (7). The pressing spring (10) can press the wheel rim of the driving roller (7) against the probe body (14) located in the limit groove (4) from the upper oblique direction, and when the driving roller (7) rotates, it drives the probe body (14) to rotate in the limit groove (4) through frictional force.

3. The automatic oiling device for a sensor probe according to claim 2, characterized in that, The support arm (8) is vertically arranged, and a rotating shaft (11) extending in the horizontal direction is fixed at the upper end of the support arm (8). A round hole is opened at the upper end of the rotating arm (9) along the direction perpendicular to the length direction of the rotating arm (9). The rotating arm (9) is sleeved on the rotating shaft (11) through the round hole and is rotatably connected to the rotating shaft (11).

4. The automatic oiling device for a sensor probe according to claim 3, characterized in that, A first connection column (12) is fixedly provided at the top of the rotating shaft (11). A second connection column (13) is fixedly provided on the rotating arm (9) near the stepping motor (6). One end of the pressing spring (10) is fixedly connected to the first connection column (12), and the other end first goes around from the bottom of the rotating shaft (11) downward from the rear side and then stretches upward and forward and is fixedly connected to the second connection column (13). The pressing spring (10) generates a downward acting force on the end of the rotating arm (9) connected to the stepping motor (6).

5. The automatic oiling device for a sensor probe according to claim 3, characterized in that, The lower end of the pressing spring (10) is fixedly connected to the workbench (1) surface, and the other end is fixedly connected to the rotating arm (9). The pressing spring (10) generates a downward acting force on the end of the rotating arm (9) connected to the stepping motor (6).

6. A sensor probe automatic oiling device according to any one of claims 1 to 5, characterized in that, The controller is a PLC circuit board or a single-chip microcomputer.

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